Energy Storage Materials最新文献_第2页

MXene-based micro-supercapacitors powered integrated sensing system: Progress and prospects 基于 MXene 的微型超级电容器驱动的集成传感系统：进展与前景

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-14 DOI: 10.1016/j.ensm.2024.103907

Hongpeng Li , Shumei Ding , Jiabao Ding , Junhao Luo , Shuiren Liu , Haibo Huang

Integrated sensing systems are playing increasingly important roles in health monitoring as a spearhead of artificial intelligence. Rationally integrating the two key components of microsystems, that is, power sources and sensors, has become a desperate requirement. Micro-supercapacitors (MSCs) with high power delivery and long operating life have emerged as the next generation of microscale power supplies. MXenes, a novel growing family of two-dimensional transition metal carbides/nitrides, show great potential in MSCs due to their metallic conductivity, tunable surface chemistry, and redox capability. Herein, the state of-the-art of MXene-based MSCs and their integrated sensing systems are briefly reviewed from the perspective of structures and functions. Firstly, the working mechanism and performance evaluation metrics of MXene are investigated. Secondly, typical fabrication technologies of MXene-based MSCs are thoroughly summarized and examined. Then, the application of MSC-powered integrated sensing systems in smart electronics is reviewed. Finally, current challenges and future perspectives in fabricating MXene-based MSCs and their self-powered integrated sensing microsystems are proposed.

作为人工智能的先锋，集成传感系统在健康监测领域发挥着越来越重要的作用。合理集成微型系统的两个关键组件，即电源和传感器，已成为当务之急。具有高功率传输和长工作寿命的微型超级电容器（MSC）已成为下一代微型电源。MXenes 是二维过渡金属碳化物/氮化物的一个新兴家族，由于其金属导电性、可调表面化学性质和氧化还原能力，在 MSC 中显示出巨大的潜力。在此，我们从结构和功能的角度简要回顾了基于 MXene 的 MSCs 及其集成传感系统的最新进展。首先，研究了 MXene 的工作机理和性能评估指标。其次，全面总结和研究了基于 MXene 的 MSC 的典型制造技术。然后，回顾了 MSC 驱动的集成传感系统在智能电子产品中的应用。最后，提出了制作基于 MXene 的 MSC 及其自供电集成传感微系统的当前挑战和未来展望。

{"title":"MXene-based micro-supercapacitors powered integrated sensing system: Progress and prospects","authors":"Hongpeng Li , Shumei Ding , Jiabao Ding , Junhao Luo , Shuiren Liu , Haibo Huang","doi":"10.1016/j.ensm.2024.103907","DOIUrl":"10.1016/j.ensm.2024.103907","url":null,"abstract":"<div><div>Integrated sensing systems are playing increasingly important roles in health monitoring as a spearhead of artificial intelligence. Rationally integrating the two key components of microsystems, that is, power sources and sensors, has become a desperate requirement. Micro-supercapacitors (MSCs) with high power delivery and long operating life have emerged as the next generation of microscale power supplies. MXenes, a novel growing family of two-dimensional transition metal carbides/nitrides, show great potential in MSCs due to their metallic conductivity, tunable surface chemistry, and redox capability. Herein, the state of-the-art of MXene-based MSCs and their integrated sensing systems are briefly reviewed from the perspective of structures and functions. Firstly, the working mechanism and performance evaluation metrics of MXene are investigated. Secondly, typical fabrication technologies of MXene-based MSCs are thoroughly summarized and examined. Then, the application of MSC-powered integrated sensing systems in smart electronics is reviewed. Finally, current challenges and future perspectives in fabricating MXene-based MSCs and their self-powered integrated sensing microsystems are proposed.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103907"},"PeriodicalIF":18.9,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142610397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microsized alloying particles with engineered eutectic phase boundaries enable fast charging and durable sodium storage 具有工程共晶相界的微小合金颗粒可实现快速充电和持久储钠

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-14 DOI: 10.1016/j.ensm.2024.103906

Chunyi Xu , Song Sun , Xin Zhang , Hongfei Zhang , Chaoqun Xia , Shijing Zhao , Hua Wang , Huiyang Gou , Gongkai Wang

Microsized alloying particles have broad application prospects as anodes of high energy density batteries, but their fast charging and long cyclic stability are seriously affected by the sluggish bulk diffusivity, poor stress response and uncontrolled electrode/electrolyte interface. Herein, we develop a microsized Bi-Sn alloying particle model system with the engineered eutectic phase boundaries (PBs) that provide high energy density, fast charging capability, and long cyclic stability for sodium ion batteries (SIBs). PBs with spacious atomic misalignment can effectively promote the bulk diffusivity, which facilitates the fast ion diffusion. The asynchronous multi-step alloying mechanism induced by PBs can not only maintain the permanent alloying driving force of particles by releasing stress, but also improve the mechanical robustness and interface stability of particles by changing the process of structure evolution. The Bi6Sn4 anode delivers a fast charging capability of 407 mAh g⁻¹ at 8 A g⁻¹ (20C), comparable even to the reported nano-sized alloy anodes. The electrode can also achieve a high tap density of 2.1 g cm⁻³ and a volumetric capacity of 1226 mAh cm⁻³, indicating a practical potential. The present results offer insights into the fast charging and durability for high energy SIBs by PBs engineering of microsized alloying particles.

微小合金颗粒作为高能量密度电池的阳极具有广阔的应用前景，但其快速充电和长周期稳定性受到体积扩散迟缓、应力响应差和电极/电解质界面不可控等因素的严重影响。在此，我们开发了一种具有工程共晶相界（PBs）的微尺寸铋硒合金颗粒模型系统，可为钠离子电池（SIBs）提供高能量密度、快速充电能力和长周期稳定性。具有宽敞原子错位的共晶相界可有效提高体扩散性，从而促进离子的快速扩散。PBs 诱导的异步多步合金化机制不仅能通过释放应力维持颗粒的永久合金化驱动力，还能通过改变结构演化过程提高颗粒的机械稳健性和界面稳定性。Bi6Sn4 阳极在 8 A g-1 (20C) 时可提供 407 mAh g-1 的快速充电能力，甚至可与已报道的纳米级合金阳极相媲美。该电极还能实现 2.1 g cm-3 的高分接密度和 1226 mAh cm-3 的体积容量，显示出实用潜力。本研究结果为通过微尺寸合金颗粒的 PBs 工程实现高能量 SIB 的快速充电和耐用性提供了启示。

{"title":"Microsized alloying particles with engineered eutectic phase boundaries enable fast charging and durable sodium storage","authors":"Chunyi Xu , Song Sun , Xin Zhang , Hongfei Zhang , Chaoqun Xia , Shijing Zhao , Hua Wang , Huiyang Gou , Gongkai Wang","doi":"10.1016/j.ensm.2024.103906","DOIUrl":"10.1016/j.ensm.2024.103906","url":null,"abstract":"<div><div>Microsized alloying particles have broad application prospects as anodes of high energy density batteries, but their fast charging and long cyclic stability are seriously affected by the sluggish bulk diffusivity, poor stress response and uncontrolled electrode/electrolyte interface. Herein, we develop a microsized Bi-Sn alloying particle model system with the engineered eutectic phase boundaries (PBs) that provide high energy density, fast charging capability, and long cyclic stability for sodium ion batteries (SIBs). PBs with spacious atomic misalignment can effectively promote the bulk diffusivity, which facilitates the fast ion diffusion. The asynchronous multi-step alloying mechanism induced by PBs can not only maintain the permanent alloying driving force of particles by releasing stress, but also improve the mechanical robustness and interface stability of particles by changing the process of structure evolution. The Bi6Sn4 anode delivers a fast charging capability of 407 mAh g<sup>−1</sup> at 8 A g<sup>−1</sup> (20C), comparable even to the reported nano-sized alloy anodes. The electrode can also achieve a high tap density of 2.1 g cm<sup>−3</sup> and a volumetric capacity of 1226 mAh cm<sup>−3</sup>, indicating a practical potential. The present results offer insights into the fast charging and durability for high energy SIBs by PBs engineering of microsized alloying particles.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103906"},"PeriodicalIF":18.9,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142637569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interface engineering of electron-ion dual transmission channels for ultra-long lifespan quasi-solid zinc-ion batteries 超长寿命准固态锌离子电池的电子-离子双传输通道界面工程学

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-12 DOI: 10.1016/j.ensm.2024.103903

Dengke Wang , Danyang Zhao , Le Chang , Yi Zhang , Weiyue Wang , Wenming Zhang , Qiancheng Zhu

Hydrogel electrolytes have emerged as effective strategies to prolong the lifespan of aqueous zinc ion batteries (AZIBs). However, dendrites and side reactions are still inescapable due to the residual active water and chaotic migration of Zn²⁺. Herein, a super stable Zn anode is realized through the synergistic effect of interfacial electron-ion dual transmission channels (EIDC) and an intermediate sodium alginate (SA) gel. Specifically, the SA gel can adjust the solvation structure of Zn²⁺ and weaken the strong bonding of Zn²⁺ and H₂O molecules. The EIDC polymer layer (PEDOT:PSS) is engineered on the SA hydrogel surfaces, in which PSS chains can offer uniform ion transmission channels via the electrostatic interaction between SO₃^– groups and Zn²⁺. While another PEDOT chains can provide electron conducting channels through the conjugated π-π bonds to accelerate charge exchange. Benefiting from the synergistic effect of EIDC polymer layer and SA gel, the as-prepared SA/EIDC gel electrolyte achieves a high ionic conductivity of 41 mS cm^–1. The Zn//Zn symmetric batteries exhibit a super-long lifespan of 6750 h at 1 mA cm^–2 and 1 mAh cm^–2 (>9 months), and cycling life of MnO₂-Zn full battery surpasses 4000 cycles. This work presents a new perspective on designing hydrogel electrolytes towards ultra-long lifespan ZIBs.

水凝胶电解质已成为延长锌离子水电池（AZIB）寿命的有效策略。然而，由于活性水的残留和 Zn2+ 的混乱迁移，枝晶和副反应仍然不可避免。在此，通过界面电子-离子双传输通道（EIDC）和中间海藻酸钠（SA）凝胶的协同效应，实现了超稳定的锌阳极。具体来说，海藻酸钠凝胶可以调整 Zn2+ 的溶解结构，削弱 Zn2+ 与 H2O 分子的强结合。在 SA 水凝胶表面设计了 EIDC 聚合物层（PEDOT:PSS），其中 PSS 链可通过 -SO3- 基团与 Zn2+ 之间的静电作用提供均匀的离子传输通道。而另一种 PEDOT 链则可通过共轭 π-π 键提供电子传导通道，加速电荷交换。得益于 EIDC 聚合物层和 SA 凝胶的协同作用，制备的 SA/EIDC 凝胶电解质达到了 41 mS cm-1 的高离子电导率。在 1 mA cm-2 和 1 mAh cm-2 条件下，Zn//Zn 对称电池具有 6750 小时的超长寿命（9 个月），MnO2-Zn 全电池的循环寿命超过 4000 次。这项工作为设计超长寿命 ZIB 的水凝胶电解质提供了新的视角。

{"title":"Interface engineering of electron-ion dual transmission channels for ultra-long lifespan quasi-solid zinc-ion batteries","authors":"Dengke Wang , Danyang Zhao , Le Chang , Yi Zhang , Weiyue Wang , Wenming Zhang , Qiancheng Zhu","doi":"10.1016/j.ensm.2024.103903","DOIUrl":"10.1016/j.ensm.2024.103903","url":null,"abstract":"<div><div>Hydrogel electrolytes have emerged as effective strategies to prolong the lifespan of aqueous zinc ion batteries (AZIBs). However, dendrites and side reactions are still inescapable due to the residual active water and chaotic migration of Zn<sup>2+</sup>. Herein, a super stable Zn anode is realized through the synergistic effect of interfacial electron-ion dual transmission channels (EIDC) and an intermediate sodium alginate (SA) gel. Specifically, the SA gel can adjust the solvation structure of Zn<sup>2+</sup> and weaken the strong bonding of Zn<sup>2+</sup> and H<sub>2</sub>O molecules. The EIDC polymer layer (PEDOT:PSS) is engineered on the SA hydrogel surfaces, in which PSS chains can offer uniform ion transmission channels via the electrostatic interaction between <img>SO<sub>3</sub><sup>–</sup> groups and Zn<sup>2+</sup>. While another PEDOT chains can provide electron conducting channels through the conjugated π-<img>π bonds to accelerate charge exchange. Benefiting from the synergistic effect of EIDC polymer layer and SA gel, the as-prepared SA/EIDC gel electrolyte achieves a high ionic conductivity of 41 mS cm<sup>–1</sup>. The Zn//Zn symmetric batteries exhibit a super-long lifespan of 6750 h at 1 mA cm<sup>–2</sup> and 1 mAh cm<sup>–2</sup> (>9 months), and cycling life of MnO<sub>2</sub>-Zn full battery surpasses 4000 cycles. This work presents a new perspective on designing hydrogel electrolytes towards ultra-long lifespan ZIBs.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103903"},"PeriodicalIF":18.9,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142601670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbonaceous catalyst boosting conversion kinetics of Na2S in Na-ion batteries 碳质催化剂促进钠离子电池中 Na2S 的转化动力学

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-12 DOI: 10.1016/j.ensm.2024.103899

Xingjiang Wu , Xude Yu , Zhicheng Tian, Xiaowei Yang, Jianhong Xu

Conversion-type metal sulfide anode with high theoretical capacity has received increasing attention in Na-ion batteries (SIBs), but the irreversible conversion of Na₂S intermediate in charging process usually engenders low rate capability and poor cycling stability. Herein, guided by DFT calculation, a new-type carbonaceous graphitic carbon nitride (g-CN) catalyst is first reported to boost conversion kinetics of Na₂S intermediate to pristine MoS₂ in SIBs. Notably, the large chemisorbed energy, high selectivity and low catalytic energy barrier of g-CN catalyst can ensure its affluent charge transfers to Na₂S intermediate, which chemically anchor and decompose Na₂S intermediate for catalyzing its reversible conversion. Moreover, the microfluidic strategy is developed to enhance the mass diffusion of g-CN catalyst precursors into MoS₂ skeleton for facilitating their subsequently covalent bonding process. The covalent bonding of g-CN catalyst on 1T-MoS₂ (1T-MoS₂/g-CN) superlattice with strong interfacial interaction via C-Mo bond can greatly promote Na⁺-storage kinetics of MoS₂ in discharging process and reversible conversion reaction of Na₂S intermediate to pristine MoS₂ in following charging process, which is further evidenced by DFT calculation and in-situ characterizations. Consequently, the 1T-MoS₂/g-CN superlattice reveals superb rate capacity and excellent cycling stability.

具有高理论容量的转化型金属硫化物负极在镍离子电池（SIB）中受到越来越多的关注，但在充电过程中，Na2S中间体的不可逆转化通常会导致速率能力低和循环稳定性差。本文以 DFT 计算为指导，首次报道了一种新型碳质氮化石墨碳（g-CN）催化剂，可促进 SIB 中 Na2S 中间体向原始 MoS2 的转化动力学。值得注意的是，g-CN 催化剂的化学吸附能大、选择性高、催化能垒低，可确保其电荷转移到 Na2S 中间体，从而化学锚定和分解 Na2S 中间体，催化其可逆转化。此外，还开发了微流体策略，以加强 g-CN 催化剂前体向 MoS2 骨架的大规模扩散，从而促进其随后的共价键合过程。g-CN 催化剂通过 C-Mo 键在 1T-MoS2 超晶格（1T-MoS2/g-CN）上共价键合，具有很强的界面相互作用，能极大地促进 MoS2 在放电过程中的 Na+ 储存动力学，并在随后的充电过程中促进 Na2S 中间体向原始 MoS2 的可逆转换反应，DFT 计算和原位表征进一步证明了这一点。因此，1T-MoS2/g-CN 超晶格显示出超强的速率容量和出色的循环稳定性。

{"title":"Carbonaceous catalyst boosting conversion kinetics of Na2S in Na-ion batteries","authors":"Xingjiang Wu , Xude Yu , Zhicheng Tian, Xiaowei Yang, Jianhong Xu","doi":"10.1016/j.ensm.2024.103899","DOIUrl":"10.1016/j.ensm.2024.103899","url":null,"abstract":"<div><div>Conversion-type metal sulfide anode with high theoretical capacity has received increasing attention in Na-ion batteries (SIBs), but the irreversible conversion of Na<sub>2</sub>S intermediate in charging process usually engenders low rate capability and poor cycling stability. Herein, guided by DFT calculation, a new-type carbonaceous graphitic carbon nitride (g-CN) catalyst is first reported to boost conversion kinetics of Na<sub>2</sub>S intermediate to pristine MoS<sub>2</sub> in SIBs. Notably, the large chemisorbed energy, high selectivity and low catalytic energy barrier of g-CN catalyst can ensure its affluent charge transfers to Na<sub>2</sub>S intermediate, which chemically anchor and decompose Na<sub>2</sub>S intermediate for catalyzing its reversible conversion. Moreover, the microfluidic strategy is developed to enhance the mass diffusion of g-CN catalyst precursors into MoS<sub>2</sub> skeleton for facilitating their subsequently covalent bonding process. The covalent bonding of g-CN catalyst on 1T-MoS<sub>2</sub> (1T-MoS<sub>2</sub>/g-CN) superlattice with strong interfacial interaction via C-Mo bond can greatly promote Na<sup>+</sup>-storage kinetics of MoS<sub>2</sub> in discharging process and reversible conversion reaction of Na<sub>2</sub>S intermediate to pristine MoS<sub>2</sub> in following charging process, which is further evidenced by DFT calculation and in-situ characterizations. Consequently, the 1T-MoS<sub>2</sub>/g-CN superlattice reveals superb rate capacity and excellent cycling stability.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103899"},"PeriodicalIF":18.9,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142601668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermo-electrochemical cells enable efficient and flexible power supplies: From materials to applications 热电化学电池实现了高效灵活的供电：从材料到应用

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-10 DOI: 10.1016/j.ensm.2024.103902

Zhi Li , Yanyu Shen , Chengdong Fang , Yuqi Huang , Xiaoli Yu , Long Jiang

Low-grade waste heat recovery is a promising pathway to achieving the goal of carbon neutrality. In recent years, thermo-electrochemical cells (also known as thermocells or thermogalvanic cells) driven by low-grade heat have been emerging as a cutting-edge technology due to their ultrahigh Seebeck coefficient, high flexibility and low cost, and they possess large application prospects in wearable electronic devices, self-powered Internet-of-Thing sensors and industrial waste heat recovery. In the past years, a large deal of work has been conducted to improve the power density and conversion efficiency from the aspects of electrode materials, electrolyte materials, etc., and giant advances have been achieved. However, the commercial applications of thermocells are still hindered by their low power density and conversion efficiency. Given these issues, this work aims to give an overview of the fundamentals, materials, operating parameters, research methods, current applications and specify the corresponding underlying challenges, and conclude the prospects to provide valuable guidelines for further design and optimization of thermocells.

低品位废热回收是实现碳中和目标的一条大有可为的途径。近年来，低品位热驱动的热电化学电池（又称热电池或热电偶电池）以其超高的塞贝克系数、高灵活性和低成本等优势成为一种新兴的前沿技术，在可穿戴电子设备、自供电物联网传感器和工业余热回收等领域具有广阔的应用前景。在过去的几年中，人们从电极材料、电解质材料等方面开展了大量工作来提高功率密度和转换效率，并取得了巨大的进展。然而，热电偶的低功率密度和低转换效率仍然阻碍着其商业应用。鉴于这些问题，本研究旨在概述热电偶的基本原理、材料、工作参数、研究方法、当前应用，并明确指出相应的潜在挑战，总结前景，为热电偶的进一步设计和优化提供有价值的指导。

{"title":"Thermo-electrochemical cells enable efficient and flexible power supplies: From materials to applications","authors":"Zhi Li , Yanyu Shen , Chengdong Fang , Yuqi Huang , Xiaoli Yu , Long Jiang","doi":"10.1016/j.ensm.2024.103902","DOIUrl":"10.1016/j.ensm.2024.103902","url":null,"abstract":"<div><div>Low-grade waste heat recovery is a promising pathway to achieving the goal of carbon neutrality. In recent years, thermo-electrochemical cells (also known as thermocells or thermogalvanic cells) driven by low-grade heat have been emerging as a cutting-edge technology due to their ultrahigh Seebeck coefficient, high flexibility and low cost, and they possess large application prospects in wearable electronic devices, self-powered Internet-of-Thing sensors and industrial waste heat recovery. In the past years, a large deal of work has been conducted to improve the power density and conversion efficiency from the aspects of electrode materials, electrolyte materials, etc., and giant advances have been achieved. However, the commercial applications of thermocells are still hindered by their low power density and conversion efficiency. Given these issues, this work aims to give an overview of the fundamentals, materials, operating parameters, research methods, current applications and specify the corresponding underlying challenges, and conclude the prospects to provide valuable guidelines for further design and optimization of thermocells.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103902"},"PeriodicalIF":18.9,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Naturally superionic polymer electrolyte of macromolecular lignin for all-solid-state sodium-ion batteries at room temperature 用于室温下全固态钠离子电池的大分子木质素天然超离子聚合物电解质

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-10 DOI: 10.1016/j.ensm.2024.103900

Xuliang Lin , Ruitong Hong , Shaoping Su , Qifei Li , Liheng Chen , Xianhong Rui , Xueqing Qiu

Solid polymer electrolytes (SPEs) that offer superior safety, mechanical strength and flexibility are crucial for advancing next-generation sodium-ion batteries (SIBs). Conventional SPEs often display temperature sensitivity, leading to relatively low ionic conductivity at room temperature (RT). Herein, lignin-based SPEs (LG-SPEs) are created by solvation and desolvation of lignin and sodium bis(fluorosulfonyl)imide (NaFSI). Theoretical calculations reveal that lignin (containing rich functional groups) and FSI⁻ molecules facilitate the movement of Na-ions within the electrolyte by minimizing steric hindrance and offering migration sites. Consequently, LG-SPEs demonstrate an enhanced ionic conductivity of 3.4 × 10⁻⁴ S cm⁻¹ at RT, with a Na-ion transfer number as high as 0.53. The assembled all-solid-state SIB comprising Na₃V₂(PO₄)₃/LG-SPE/NaTi₂(PO₄)₃ exhibits excellent electrochemical performance at RT, achieving a specific capacity of 95 mA h g⁻¹ and retaining 82 % of its capacity after 200 cycles at 0.1 C. This work presents an environmentally friendly and straightforward methodology for developing high-performance SPEs at RT, while also opening up new avenues for the valorization of lignin.

具有卓越安全性、机械强度和灵活性的固体聚合物电解质（SPE）对于推动下一代钠离子电池（SIB）的发展至关重要。传统的固态聚合物电解质通常具有温度敏感性，导致其在室温（RT）下的离子电导率相对较低。本文通过木质素和双（氟磺酰）亚胺钠（NaFSI）的溶解和解溶解来制造木质素基固相萃取剂（LG-SPE）。理论计算显示，木质素（含有丰富的官能团）和 FSI 分子通过减少立体阻碍和提供迁移位点来促进 Na 离子在电解质中的移动。因此，LG-SPE 在 RT 时的离子电导率提高到 3.4 × 10-4 S cm-1，Na 离子转移数高达 0.53。由 Na3V2(PO4)3/LG-SPE/NaTi2(PO4)3 组成的全固态 SIB 在 RT 下表现出优异的电化学性能，比容量达到 95 mA h g-1，在 0.1 C 下循环 200 次后容量保持率为 82%。

{"title":"Naturally superionic polymer electrolyte of macromolecular lignin for all-solid-state sodium-ion batteries at room temperature","authors":"Xuliang Lin , Ruitong Hong , Shaoping Su , Qifei Li , Liheng Chen , Xianhong Rui , Xueqing Qiu","doi":"10.1016/j.ensm.2024.103900","DOIUrl":"10.1016/j.ensm.2024.103900","url":null,"abstract":"<div><div>Solid polymer electrolytes (SPEs) that offer superior safety, mechanical strength and flexibility are crucial for advancing next-generation sodium-ion batteries (SIBs). Conventional SPEs often display temperature sensitivity, leading to relatively low ionic conductivity at room temperature (RT). Herein, lignin-based SPEs (LG-SPEs) are created by solvation and desolvation of lignin and sodium bis(fluorosulfonyl)imide (NaFSI). Theoretical calculations reveal that lignin (containing rich functional groups) and FSI<sup>−</sup> molecules facilitate the movement of Na-ions within the electrolyte by minimizing steric hindrance and offering migration sites. Consequently, LG-SPEs demonstrate an enhanced ionic conductivity of 3.4 × 10<sup>−4</sup> S cm<sup>−1</sup> at RT, with a Na-ion transfer number as high as 0.53. The assembled all-solid-state SIB comprising Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>/LG-SPE/NaTi<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> exhibits excellent electrochemical performance at RT, achieving a specific capacity of 95 mA h g<sup>−1</sup> and retaining 82 % of its capacity after 200 cycles at 0.1 C. This work presents an environmentally friendly and straightforward methodology for developing high-performance SPEs at RT, while also opening up new avenues for the valorization of lignin.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103900"},"PeriodicalIF":18.9,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving complete solid-solution reaction in layered cathodes with reversible oxygen redox for high-stable sodium-ion batteries 在具有可逆氧氧化还原作用的层状阴极中实现完全固溶反应，以制造高稳定性钠离子电池

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-09 DOI: 10.1016/j.ensm.2024.103895

Xi Zhou , Tong Liu , Chen Cheng , Xiao Xia , Yihao Shen , Lei Wang , Yawen Xie , Bin Wang , Ying Zou , Duanyun Cao , Yuefeng Su , Liang Zhang

P2-type layered Mn-based oxides are promising cathode materials for sodium-ion batteries (SIBs), but it is still challenging to achieve both high capacity and stability because of complex phase transitions and irreversible oxygen release at high voltage. To address these challenges, an optimal P2-type Na_0.67Mn_0.8Cu_0.15Ti_0.05O₂ (NMCT) cathode with a complete solid-solution reaction and reversible oxygen redox reaction over a wide voltage range was developed. The introduction of the Na–O–Ti configuration leads to fewer delocalized electrons on oxygen and thus enhances oxygen redox activity, while the high energetic overlap between O 2p and Cu 3d states and the increased Mn–O hybridization strengthen the rigidity of oxygen framework to achieve reversible and stable oxygen redox reaction. In addition, the reinforced TM–O interaction, combined with the ameliorated Mn³⁺ Jahn-Teller distortion and disrupted Na⁺/vacancy ordering, synergistically eliminate the undesired P2–OP4 phase transition and lead to a complete solid-solution reaction, which greatly facilitates Na⁺ transport kinetics and stabilizes structural integrity. As a consequence, improved rate performance and cycling stability are achieved for NMCT. Our present study provides a promising avenue for simultaneously utilizing the reversible oxygen redox activity and maintaining the structural integrity to accomplish the capacity-stability trade-off of Mn-based oxide cathodes for constructing practical SIBs.

P2- 型层状锰基氧化物是钠离子电池（SIB）的前景看好的阴极材料，但由于复杂的相变和高电压下不可逆的氧释放，要同时实现高容量和稳定性仍具有挑战性。为了应对这些挑战，我们开发了一种最佳的 P2- 型 Na0.67Mn0.8Cu0.15Ti0.05O2 (NMCT) 阴极，它具有完全的固溶反应和宽电压范围内的可逆氧氧化还原反应。Na-O-Ti 构型的引入导致氧上的脱局域电子减少，从而增强了氧氧化还原活性，而 O 2p 态和 Cu 3d 态之间的高能量重叠以及 Mn-O 杂化的增加增强了氧框架的刚性，从而实现了可逆且稳定的氧氧化还原反应。此外，强化的 TM-O 相互作用与改善的 Mn3+ Jahn-Teller 畸变和破坏的 Na+/ 空位有序相结合，协同消除了不希望发生的 P2-OP4 相变，实现了完全的固溶反应，从而极大地促进了 Na+ 运输动力学并稳定了结构的完整性。因此，NMCT 的速率性能和循环稳定性都得到了改善。我们目前的研究为同时利用可逆氧氧化还原活性和保持结构完整性提供了一条很有前景的途径，从而实现锰基氧化物阴极的容量-稳定性权衡，构建出实用的 SIB。

{"title":"Achieving complete solid-solution reaction in layered cathodes with reversible oxygen redox for high-stable sodium-ion batteries","authors":"Xi Zhou , Tong Liu , Chen Cheng , Xiao Xia , Yihao Shen , Lei Wang , Yawen Xie , Bin Wang , Ying Zou , Duanyun Cao , Yuefeng Su , Liang Zhang","doi":"10.1016/j.ensm.2024.103895","DOIUrl":"10.1016/j.ensm.2024.103895","url":null,"abstract":"<div><div>P2-type layered Mn-based oxides are promising cathode materials for sodium-ion batteries (SIBs), but it is still challenging to achieve both high capacity and stability because of complex phase transitions and irreversible oxygen release at high voltage. To address these challenges, an optimal P2-type Na<sub>0.67</sub>Mn<sub>0.8</sub>Cu<sub>0.15</sub>Ti<sub>0.05</sub>O<sub>2</sub> (NMCT) cathode with a complete solid-solution reaction and reversible oxygen redox reaction over a wide voltage range was developed. The introduction of the Na–O–Ti configuration leads to fewer delocalized electrons on oxygen and thus enhances oxygen redox activity, while the high energetic overlap between O 2p and Cu 3d states and the increased Mn–O hybridization strengthen the rigidity of oxygen framework to achieve reversible and stable oxygen redox reaction. In addition, the reinforced TM–O interaction, combined with the ameliorated Mn<sup>3+</sup> Jahn-Teller distortion and disrupted Na<sup>+</sup>/vacancy ordering, synergistically eliminate the undesired P2–OP4 phase transition and lead to a complete solid-solution reaction, which greatly facilitates Na<sup>+</sup> transport kinetics and stabilizes structural integrity. As a consequence, improved rate performance and cycling stability are achieved for NMCT. Our present study provides a promising avenue for simultaneously utilizing the reversible oxygen redox activity and maintaining the structural integrity to accomplish the capacity-stability trade-off of Mn-based oxide cathodes for constructing practical SIBs.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103895"},"PeriodicalIF":18.9,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrafast lattice engineering for high energy density and high-rate sodium-ion layered oxide cathodes 用于高能量密度和高速率钠离子层状氧化物阴极的超快晶格工程技术

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-08 DOI: 10.1016/j.ensm.2024.103868

Bizhu Zheng , Hui Qian , Gangya Cheng , Chen Yuan , Yong Cheng , Ming-Sheng Wang , Xiangsi Liu , Yuxuan Xiang

Sodium-ion batteries attract significant interest for large-scale energy storage owing to abundant sodium reserves, while challenges remain in the high synthesis energy consumption, long synthesis period, and poor electrochemical performance of sodium-ion layered oxide materials. This study presents a general high-temperature thermal shock (HTS) strategy to synthesize and optimize sodium-ion layered oxides. The rapid ramping, sintering, and cooling processes minimize volatile sodium loss during HTS, facilitating the improvement of phase purity and effectively optimizing the microstructure of materials in a non-equilibrium state. As a proof of concept, Mn-based Na_0.67MnO₂ treated with HTS (NMOHTS) suppresses Mn ion vacancy within transition material layers, thereby increasing the redox centers and lowering the Mn 3d orbital energy level. Besides, the formation of transition metal layer stacking faults mitigates the structural transformation and Na⁺-vacancies ordering arrangement during cycling. Consequently, the energy density of the NMOHTS increases by 21.5 % to 559 Wh kg^-1, with an outstanding rate capability of 108 mAh g^-1 at 10C and an impressive capacity retention of 93.7 % after 300 cycles at 1C. In addition, we demonstrate the universality of HTS in synthesizing various other sodium-ion layered oxides, including nickel-based and iron-based cathodes, as well as in activating degraded materials.

由于钠储量丰富，钠离子电池在大规模储能方面备受关注，但钠离子层状氧化物材料的合成能耗高、合成周期长、电化学性能差等难题依然存在。本研究提出了一种合成和优化钠离子层状氧化物的通用高温热冲击（HTS）策略。快速升温、烧结和冷却过程最大程度地减少了高温热冲击过程中钠的挥发损失，有利于提高相纯度并有效优化非平衡态材料的微观结构。作为概念验证，用 HTS（NMO-HTS）处理锰基 Na0.67MnO2，可抑制过渡材料层内的锰离子空位，从而增加氧化还原中心并降低锰 3d 轨道能级。此外，过渡金属层堆叠断层的形成减轻了循环过程中的结构转变和 Na+ 空位有序排列。因此，NMO-HTS 的能量密度增加了 21.5%，达到 559 Wh kg-1，在 10C 下的速率能力达到 108 mAh g-1，在 1C 下循环 300 次后的容量保持率达到 93.7%。此外，我们还证明了 HTS 在合成其他各种钠离子层状氧化物（包括镍基和铁基阴极）以及激活降解材料方面的通用性。

{"title":"Ultrafast lattice engineering for high energy density and high-rate sodium-ion layered oxide cathodes","authors":"Bizhu Zheng , Hui Qian , Gangya Cheng , Chen Yuan , Yong Cheng , Ming-Sheng Wang , Xiangsi Liu , Yuxuan Xiang","doi":"10.1016/j.ensm.2024.103868","DOIUrl":"10.1016/j.ensm.2024.103868","url":null,"abstract":"<div><div>Sodium-ion batteries attract significant interest for large-scale energy storage owing to abundant sodium reserves, while challenges remain in the high synthesis energy consumption, long synthesis period, and poor electrochemical performance of sodium-ion layered oxide materials. This study presents a general high-temperature thermal shock (HTS) strategy to synthesize and optimize sodium-ion layered oxides. The rapid ramping, sintering, and cooling processes minimize volatile sodium loss during HTS, facilitating the improvement of phase purity and effectively optimizing the microstructure of materials in a non-equilibrium state. As a proof of concept, Mn-based Na<sub>0.67</sub>MnO<sub>2</sub> treated with HTS (NMO<img>HTS) suppresses Mn ion vacancy within transition material layers, thereby increasing the redox centers and lowering the Mn <em>3d</em> orbital energy level. Besides, the formation of transition metal layer stacking faults mitigates the structural transformation and Na<sup>+</sup>-vacancies ordering arrangement during cycling. Consequently, the energy density of the NMO<img>HTS increases by 21.5 % to 559 Wh kg<sup>-1</sup>, with an outstanding rate capability of 108 mAh g<sup>-1</sup> at 10C and an impressive capacity retention of 93.7 % after 300 cycles at 1C. In addition, we demonstrate the universality of HTS in synthesizing various other sodium-ion layered oxides, including nickel-based and iron-based cathodes, as well as in activating degraded materials.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103868"},"PeriodicalIF":18.9,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142597870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying the effect of degradation modes on Li-ion battery thermal instability and safety 量化退化模式对锂离子电池热不稳定性和安全性的影响

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-08 DOI: 10.1016/j.ensm.2024.103878

Venkatesh Kabra , Avijit Karmakar , Bairav S. Vishnugopi, Partha P. Mukherjee

Understanding the thermal stability of lithium-ion (Li-ion) cells is critical to ensuring optimal safety and reliability for various applications such as portable electronics and electric vehicles. In this work, we demonstrate a combined modeling and experimental framework to interrogate and quantify the role of different degradation modes on the thermal stability and safety of Li-ion cells. A physics-based Li-ion cell aging model is developed to describe the underpinning role of degradation mechanisms such as Li plating, solid electrolyte interphase growth, and the loss of electrode active material on the resulting capacity fade during cycling. By incorporating mechanistic degradation descriptors from the aging model, we develop a degradation-aware cell-level thermal stability framework that captures key safety characteristics such as thermal runaway (TR) onset temperature, self-heating rate, and peak TR temperature for different cycling conditions. Additionally, we perform electrochemical and accelerating rate calorimetry (ARC) experiments to evaluate the thermo-kinetic parameters associated with the various exothermic reactions during TR of pristine and aged Li-ion cells. Through a synergistic integration of thermo-electrochemical characteristics from the ARC experiments and degradation insights from the cell aging model, the proposed aging-coupled safety framework provides a baseline to quantify the thermal stability of Li-ion cells subject to a wide range of operating conditions and degradation scenarios.

了解锂离子（Li-ion）电池的热稳定性对于确保便携式电子产品和电动汽车等各种应用的最佳安全性和可靠性至关重要。在这项工作中，我们展示了一个建模与实验相结合的框架，用于分析和量化不同降解模式对锂离子电池热稳定性和安全性的影响。我们开发了一种基于物理学的锂离子电池老化模型，用于描述锂镀层、固体电解质相间生长和电极活性材料损耗等降解机制在循环过程中对容量衰减产生的基础作用。通过结合老化模型中的机理降解描述符，我们开发了一个降解感知电池级热稳定性框架，该框架可捕捉不同循环条件下的热失控（TR）起始温度、自热率和TR峰值温度等关键安全特性。此外，我们还进行了电化学和加速速率量热法（ARC）实验，以评估原始和老化锂离子电池在热失控过程中与各种放热反应相关的热动力学参数。通过将 ARC 实验得出的热电化学特性和电池老化模型得出的降解见解进行协同整合，所提出的老化耦合安全框架为量化锂离子电池在各种工作条件和降解情况下的热稳定性提供了基准。

{"title":"Quantifying the effect of degradation modes on Li-ion battery thermal instability and safety","authors":"Venkatesh Kabra , Avijit Karmakar , Bairav S. Vishnugopi, Partha P. Mukherjee","doi":"10.1016/j.ensm.2024.103878","DOIUrl":"10.1016/j.ensm.2024.103878","url":null,"abstract":"<div><div>Understanding the thermal stability of lithium-ion (Li-ion) cells is critical to ensuring optimal safety and reliability for various applications such as portable electronics and electric vehicles. In this work, we demonstrate a combined modeling and experimental framework to interrogate and quantify the role of different degradation modes on the thermal stability and safety of Li-ion cells. A physics-based Li-ion cell aging model is developed to describe the underpinning role of degradation mechanisms such as Li plating, solid electrolyte interphase growth, and the loss of electrode active material on the resulting capacity fade during cycling. By incorporating mechanistic degradation descriptors from the aging model, we develop a degradation-aware cell-level thermal stability framework that captures key safety characteristics such as thermal runaway (TR) onset temperature, self-heating rate, and peak TR temperature for different cycling conditions. Additionally, we perform electrochemical and accelerating rate calorimetry (ARC) experiments to evaluate the thermo-kinetic parameters associated with the various exothermic reactions during TR of pristine and aged Li-ion cells. Through a synergistic integration of thermo-electrochemical characteristics from the ARC experiments and degradation insights from the cell aging model, the proposed aging-coupled safety framework provides a baseline to quantify the thermal stability of Li-ion cells subject to a wide range of operating conditions and degradation scenarios.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103878"},"PeriodicalIF":18.9,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biomimetic surface design enables a resilient solid electrolyte interphase for high-performance anodes 仿生表面设计实现了高性能阳极的弹性固体电解质间相

IF 18.9 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials

Pub Date : 2024-11-07 DOI: 10.1016/j.ensm.2024.103871

Yue Zhai , Zhen Wei , Jiaxing He , Ziyun Zhao , Qiang Li , Yiran Jia , Qing He , Shichao Wu , Quan-Hong Yang

Surface coating presents an effective methodology for mitigating the detrimental effects of large volume changes inherent to high-capacity anode materials (e.g. Si, SiO_x). However, designs often prioritize the protection of internal active particles, inadvertently neglecting the intricate interplay between the coating layer and the external electrolyte which exhibits profound influences on the solid electrolyte interphases (SEIs). Inspired by the extracellular polymeric substance (EPS) protecting biological cells (e.g. yeast) from predation and chemical damages, we prepare a conducting polymer-based EPS system (CP-EPS) on a surface bilayer comprising soft carbon membranes and compact graphene walls, constructing the biomimetic cellular structure. The CP-EPS chemically interacts with electrolyte catalyzing the symbiosis of integrated LiF-enriched SEIs and physically provide sufficient resilience for SEIs. This resilient SEIs offer excellent reaction kinetics and roughness which protects the structural integrity of the particle and itself from pulverization and excessive SEI thickening. The prepared SiO_x anode delivers a superior average coulombic efficiency of 99.4 % over 200 cycles at 0.5C and a high reversible capacity of 730 mAh g^-1 after 300 cycles at 2C.

表面涂层是减轻大容量阳极材料（如 Si、SiOx）固有的大体积变化的有害影响的有效方法。然而，在设计中通常会优先考虑保护内部活性颗粒，却无意中忽略了涂层与外部电解质之间错综复杂的相互作用，而外部电解质对固体电解质相间层（SEIs）有着深远的影响。受保护生物细胞（如酵母）免受捕食和化学损害的胞外聚合物物质（EPS）的启发，我们在由软碳膜和致密石墨烯壁组成的表面双层上制备了基于导电聚合物的 EPS 系统（CP-EPS），构建了仿生物细胞结构。CP-EPS 与电解质发生化学作用，催化富含锂离子的集成 SEI 的共生，并为 SEI 提供足够的物理弹性。这种弹性 SEI 具有出色的反应动力学和粗糙度，可保护颗粒及其本身的结构完整性，防止粉化和 SEI 过度增厚。制备的氧化硅阳极在 0.5 摄氏度条件下循环 200 次后，平均库仑效率达到 99.4%，在 2 摄氏度条件下循环 300 次后，可逆容量达到 730 mAh g-1。

{"title":"Biomimetic surface design enables a resilient solid electrolyte interphase for high-performance anodes","authors":"Yue Zhai , Zhen Wei , Jiaxing He , Ziyun Zhao , Qiang Li , Yiran Jia , Qing He , Shichao Wu , Quan-Hong Yang","doi":"10.1016/j.ensm.2024.103871","DOIUrl":"10.1016/j.ensm.2024.103871","url":null,"abstract":"<div><div>Surface coating presents an effective methodology for mitigating the detrimental effects of large volume changes inherent to high-capacity anode materials (e.g. Si, SiO<sub>x</sub>). However, designs often prioritize the protection of internal active particles, inadvertently neglecting the intricate interplay between the coating layer and the external electrolyte which exhibits profound influences on the solid electrolyte interphases (SEIs). Inspired by the extracellular polymeric substance (EPS) protecting biological cells (e.g. yeast) from predation and chemical damages, we prepare a conducting polymer-based EPS system (CP-EPS) on a surface bilayer comprising soft carbon membranes and compact graphene walls, constructing the biomimetic cellular structure. The CP-EPS chemically interacts with electrolyte catalyzing the symbiosis of integrated LiF-enriched SEIs and physically provide sufficient resilience for SEIs. This resilient SEIs offer excellent reaction kinetics and roughness which protects the structural integrity of the particle and itself from pulverization and excessive SEI thickening. The prepared SiO<sub>x</sub> anode delivers a superior average coulombic efficiency of 99.4 % over 200 cycles at 0.5C and a high reversible capacity of 730 mAh g<sup>-1</sup> after 300 cycles at 2C.</div></div>","PeriodicalId":306,"journal":{"name":"Energy Storage Materials","volume":"74 ","pages":"Article 103871"},"PeriodicalIF":18.9,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0