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Enabling high-accuracy lithium-ion battery status prediction via machine learning-integrated perovskite sensors 通过机器学习集成钙钛矿传感器实现高精度锂离子电池状态预测
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-27 DOI: 10.1016/j.nanoen.2025.111626
Jiaxin Sun , Xianjie Xu , Zhefu Mu , Zijun Huang , Guo Chen , Xinkai Qi , Hongwei Liu , Lei Zhu , Xiuquan Gu , Xinjian He , Sheng Huang
Monitoring the safety and reliability of lithium-ion batteries (LIBs) under extreme operating conditions faces significant challenges, due to the difficulty of conventional battery management systems (BMS) in capturing internal dynamic changes in real-time. To address this challenge, this paper proposes an implantable flexible sensor based on ZnO-passivated CsPbBr3 quantum dots encapsulated in EPDM, which realizes real-time monitoring inside lithium batteries. Experiments demonstrate that the sensor resistance exhibits high synchronization with battery voltage changes (response time < 5 s), and the capacity fade rate difference after sensor implantation is only 14.2 % over 15 days. Theoretical calculations and in situ X-ray diffraction (XRD) reveal the energy band modulation mechanism of Li+ adsorption-induced. During LIBs charging/discharging, changes in Li+ concentration around the sensor alter the band structure and density of states (DOS) of the sensing material, leading to changes in its electrical signal. Thus, the working state of the LIBs can be monitored and predicted by tracking changes in the sensor's electrical signal. Further integration of an LSTM-multitask learning model enables advanced prediction of the LIBs operating state based on sensor signals (5000 s ahead), with a mean absolute error (MAE) of 6.10 %, and charge/discharge rate recognition with 96.7 % accuracy.
由于传统的电池管理系统(BMS)难以实时捕捉电池内部的动态变化,因此在极端工作条件下监测锂离子电池(lib)的安全性和可靠性面临着重大挑战。针对这一挑战,本文提出了一种基于EPDM封装zno钝化CsPbBr3量子点的可植入柔性传感器,实现了锂电池内部的实时监测。实验表明,传感器电阻与电池电压变化高度同步(响应时间为5 s),传感器植入后15天内容量衰减率差值仅为14.2%。理论计算和原位x射线衍射(XRD)揭示了Li+吸附诱导的能带调制机理。在锂离子电池充放电过程中,传感器周围Li+浓度的变化会改变传感材料的能带结构和态密度(DOS),从而导致其电信号的变化。因此,可以通过跟踪传感器电信号的变化来监测和预测lib的工作状态。进一步集成lstm -多任务学习模型,可以基于传感器信号(提前5000秒)对lib工作状态进行高级预测,平均绝对误差(MAE)为6.10%,充电/放电率识别准确率为96.7%。
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引用次数: 0
Development of deformable aqueous Li-ion batteries enabled by water-in-salt-based hydrogel electrolytes 盐基水凝胶电解质可变形水锂离子电池的研制
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-26 DOI: 10.1016/j.nanoen.2025.111617
Ziting Tian , Peisheng He , Anju Toor
The growing demand for safe, deformable, and high-performance energy storage systems, driven by advances in wearable electronics, soft robotics, and biomedical devices, has brought deformable aqueous lithium-ion batteries (ALIBs) into focus. Water as the electrolyte solvent imparts ALIBs with intrinsic safety and higher moisture tolerance than conventional organic-electrolyte LIBs, enabling the use of stretchable and deformable packaging that is generally non-hermetic. However, their electrochemical performance is fundamentally constrained by the narrow electrochemical stability window (ESW) of water, which limits the achievable cell voltage and energy density. Recent progress in water-in-salt electrolytes (WiSEs) and their hydrogel-based derivatives (WiS-HGEs) presents a promising strategy to overcome these challenges. Due to the high salt concentration involved, WiSEs suppress the reactivity of water, thereby broadening the ESW. WiS-HGEs offer enhanced mechanical robustness to support the deformability of ALIBs, where the hydrogel serves as both the electrolyte and a stretchable separator, preventing electrolyte leakage and maintaining ionic conductivity under mechanical deformation. This article reviews the latest advancements in deformable ALIBs enabled by WiS-HGE systems, with a focus on how salt selection, electrolyte composition, and polymer matrix collectively influence electrochemical performance. Perspectives on current challenges and future directions are discussed in the last section, highlighting material design strategies, interfacial engineering approaches, and component-level innovations.
在可穿戴电子产品、软机器人和生物医学设备的进步推动下,对安全、可变形和高性能储能系统的需求不断增长,使可变形水锂离子电池(alib)成为人们关注的焦点。与传统的有机电解质LIBs相比,水作为电解质溶剂赋予了ALIBs固有的安全性和更高的耐湿性,使其能够使用通常不密封的可拉伸和可变形包装。然而,它们的电化学性能从根本上受到水的狭窄电化学稳定窗口(ESW)的限制,这限制了可实现的电池电压和能量密度。盐中水电解质(WiSEs)及其水凝胶衍生物(WiSEs - hges)的最新进展为克服这些挑战提供了一种有希望的策略。由于涉及高盐浓度,wise抑制了水的反应性,从而扩大了ESW。wisi - hge提供了增强的机械稳健性,以支持alib的可变形性,其中水凝胶既充当电解质又充当可拉伸分离器,防止电解质泄漏并在机械变形下保持离子电导率。本文回顾了由wi - hge系统实现的可变形alib的最新进展,重点介绍了盐选择、电解质组成和聚合物基质如何共同影响电化学性能。最后一节讨论了当前挑战和未来方向的观点,重点介绍了材料设计策略,接口工程方法和组件级创新。
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引用次数: 0
Interlocking structure based on AgNWs/Ti3C2Tx hybrid for self-powered bioelectronic 基于AgNWs/Ti3C2Tx混合材料的自供电生物电子联锁结构
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-26 DOI: 10.1016/j.nanoen.2025.111625
Jiahui Li , Weidong Song , Zhou Yu , Zirui Wang , Feiyang Jiang , Baoying Dai , Qiuwei Shi , Yannan Xie
Wearable self-powered bioelectronic devices with long-term stability have attracted considerable attention due to their portability and real-time physiological signal monitoring capabilities. However, significant challenges remain in enhancing electrical output and ensuring long-term operational stability. In addition, improving human-machine interaction and scalability remains critical for practical applications. To address these issues, we propose a conductive layer structure employing multi-material coupling and interlocking of two-dimensional (2D) MXene and one-dimensional (1D) silver nanowires (AgNWs). This architecture effectively prevents the oxidation of conductive materials, thereby achieving high-performance and stable electrical output. Furthermore, the interlocking structure-modified conductive fabric has been successfully fabricated on a large scale, ensuring compatibility with modern textile manufacturing techniques. We further demonstrate the application of this flexible electronic fabric in energy conversion, tactile sensing, physiological signal monitoring, and interactive sensing. These findings offer a viable strategy for the future development of user-interactive electronic textiles.
具有长期稳定性的可穿戴自供电生物电子设备因其便携性和实时生理信号监测能力而备受关注。然而,在提高电力输出和确保长期运行稳定性方面仍然存在重大挑战。此外,改进人机交互和可扩展性对于实际应用仍然至关重要。为了解决这些问题,我们提出了一种利用二维(2D) MXene和一维(1D)银纳米线(AgNWs)的多材料耦合和互锁的导电层结构。这种结构有效地防止了导电材料的氧化,从而实现高性能和稳定的电输出。此外,该互锁结构改性导电织物已成功大规模制备,确保了与现代纺织制造技术的兼容性。我们进一步展示了这种柔性电子织物在能量转换、触觉传感、生理信号监测和交互传感方面的应用。这些发现为用户交互电子纺织品的未来发展提供了可行的策略。
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引用次数: 0
The double-edged role of O2- in preparing superior electrochemical performance NCM layered cathode through molten salt synthesis process 溶解氧-在熔盐合成工艺制备电化学性能优越的NCM层状阴极中的关键作用
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-26 DOI: 10.1016/j.nanoen.2025.111623
Dong Wang , Hongmei Cao , Jiao Wang , Junhao Liu , Xuzhong Gong , Tao Qi , Zhi Wang
The preparation of LiNixCoyMnzO2 (NCM) cathode through molten salt (MSs) reaction has great advantage in electrochemical performance due to its uniform and well-controlled reaction environment. However, the critical role of O2- which acts as the essential reactant has never been considered. Here, homogeneous NCM523 cathode particles with low Li/Ni intermixing were synthesized in LiCl-containing molten salts, benefiting from the excellent O2- dissolving capability of LiCl. The critical role of LiCl shows that it can either promote the uniform crystallization or leads to the collapse of the layered structure. Furthermore, by considering both O2- solubility and low melting point, the prepared NCM523 cathode shows high specific capacity (173 mAh g−1 at 0.1 C, 4.3–2.8 V) and excellent capacity retention (96 % after 150 cycles at 1 C cycling). The NCM cathode preparing process in molten LiCl containing MSs shows both advance in thermodynamics and kinetics. This approach can also be successfully extended to other NCM cathode materials.
通过熔盐反应制备LiNixCoyMnzO2 (NCM)阴极,由于其反应环境均匀且控制良好,具有很大的电化学性能优势。然而,作为基本反应物的O2-的关键作用从未被考虑过。利用LiCl优异的溶氧性能,在含LiCl熔盐中合成了低Li/Ni混合的均匀NCM523阴极颗粒。LiCl的关键作用表明,它既可以促进均匀结晶,也可以导致层状结构的崩溃。此外,考虑到氧溶解度和低熔点,制备的NCM523阴极具有高比容量(173 mAh g-1, 0.1 C, 4.3-2.8 V)和优异的容量保持率(1 C循环150次后96%)。在含MSs的熔融LiCl中制备NCM阴极的工艺在热力学和动力学上都取得了进展。这种方法也可以成功地扩展到其他NCM正极材料。
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引用次数: 0
A durable triboelectric nanogenerator based on oil-soaked foam for postharvest preservation of fruits 一种基于油浸泡沫的耐用摩擦电纳米发电机,用于水果采后保存
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-26 DOI: 10.1016/j.nanoen.2025.111622
Renjun Xu , Yixuan Liu , Yujie Hu , Ke Li , Zhaoyang Yu , Hengyu Guo , Niman Jiang , Xuhui Yi , Bin Wu , Ruijie Tang , Xitong Niu , Weibo Shen , Zhao Wang , Wenlin Liu
High durability remains a critical challenge for the commercialization of triboelectric nanogenerators (TENGs). Although oil-lubricated TENGs exhibit high output voltage and enhanced durability, their practicality is hindered by issues such as complex encapsulation structures, potential lubricant leakage, and limited installation flexibility. Here, we report a highly reliable oil-soaked foam based TENG (OF-TENG) by employing the throughout porous foam as tribo-material for effective oil retention. This method enables precise control of a micro-oil layer at the tribo-interface, thereby boosting both the durability and electrical output. Furthermore, the installation at multi-angle is also available. The OF-TENG obtains an ultrahigh output voltage of 31.2 kV and an output charge of 3.42 µC. Besides, a preservation system of cherry tomato has been successfully developed by using the high output voltage of OF-TENG. The treated cherry tomato exhibits significantly better freshness retention than the untreated group, as indicated by the key metrics such as weight loss, decay rate, color and hardness. This study offers a convenient encapsulation strategy to enhance the output performance, operational durability and practicality of oil-based TENG. It also highlights the potential of this clean, low-cost high-voltage source for advancing the green agriculture.
高耐久性仍然是摩擦电纳米发电机(TENGs)商业化的关键挑战。尽管油润滑的teng具有高输出电压和增强的耐用性,但其实用性受到诸如复杂的封装结构、潜在的润滑剂泄漏和有限的安装灵活性等问题的阻碍。在这里,我们报告了一种高度可靠的油浸泡沫基TENG (OF-TENG),它采用全孔泡沫作为摩擦材料来有效保油。这种方法可以精确控制摩擦界面上的微油层,从而提高耐用性和电力输出。此外,还可以多角度安装。of - teng具有31.2 kV的超高输出电压和3.42µC的输出电荷。此外,利用of - teng的高输出电压成功研制了樱桃番茄保鲜系统。从失重、腐烂率、颜色和硬度等关键指标来看,处理过的樱桃番茄的保鲜度明显优于未处理过的樱桃番茄。该研究提供了一种方便的封装策略,以提高油基TENG的输出性能、使用耐久性和实用性。它还强调了这种清洁、低成本的高压电源在推进绿色农业方面的潜力。
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引用次数: 0
A bio-inspired butterfly wave energy harvester for maritime safety and hydrological monitoring 一种用于海上安全和水文监测的仿生蝴蝶波能量采集器
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-25 DOI: 10.1016/j.nanoen.2025.111620
Zhiwei Chen , Jinyan Feng , Yiyan Zhang , Yubao Li , Hao Li , Lingfei Qi
The development of ocean energy plays a vital role in advancing the green industry and sustainable energy. Navigational buoys, which guide marine vessels at night, are fundamental to ensuring maritime safety. This paper proposes a Bionic Butterfly Wave Energy Harvester (BB-WEH) designed to simultaneously provide electrical power and perform real-time monitoring of a buoy status. The device consists of two main components: a roly-poly-like rolling triboelectric nanogenerator (TENG) and a coaxial counter-rotating electromagnetic generator (EMG). The BB-WEH innovatively mimics the flapping motion of butterfly wings, making the energy harvesting device better adapted to low-frequency wave excitation. Furthermore, it integrates an attitude detection function; while converting wave energy into electricity, it captures electrical signals embedded with information on the incoming wave direction and the device's tilt angle. These signals are subsequently processed using a Long Short-Term Memory (LSTM) deep learning model. Experiments demonstrate that the BB-WEH achieves effective voltage output even at a low frequency of 0.3 Hz, with the EMG and TENG delivering powers of 10.53 mW/m2, and 2.93 mW, respectively. The deep learning results show that the accuracy for identifying incoming waves and device attitude reaches 99.3 %, enabling the effective detection of the buoy status to ensure navigational safety.
海洋能源的开发对推进绿色产业和可持续能源具有重要意义。导航浮标在夜间为海上船只提供导航,是确保海上安全的基础。本文提出了一种仿生蝴蝶波浪能量采集器(BB-WEH),旨在同时提供电力并对浮标状态进行实时监测。该装置由两个主要部件组成:一个滚轴-聚类滚动摩擦电纳米发电机(TENG)和一个同轴反向旋转电磁发电机(EMG)。BB-WEH创新地模仿了蝴蝶翅膀的拍打运动,使能量收集装置更好地适应低频波激励。此外,它还集成了姿态检测功能;在将波浪能转化为电能的同时,它捕获嵌入了入射波方向和设备倾斜角度信息的电信号。这些信号随后使用长短期记忆(LSTM)深度学习模型进行处理。实验表明,即使在0.3 Hz的低频下,BB-WEH也能实现有效电压输出,EMG和TENG的输出功率分别为10.53 mW/m2和2.93 mW。深度学习结果表明,识别来波和设备姿态的准确率达到99.3 %,能够有效检测浮标状态,确保航行安全。
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引用次数: 0
Template-assisted crystallization for tin halide perovskite transistors 卤化锡钙钛矿晶体管的模板辅助结晶
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-25 DOI: 10.1016/j.nanoen.2025.111621
Bum Ho Jeong , Hakjun Kim , Cheong Beom Lee , Hansol Park , Jieon Kim , Kyeounghak Kim , Hui Joon Park
Tin (Sn) halide perovskites are promising lead-free semiconductors for next-generation electronics, yet their susceptibility to oxidation, rapid crystallization, and high defect densities hinder their application in high-performance thin-film transistors (TFTs). Here, we present a template-assisted crystallization strategy that enables two-dimensional (2D) metal halide perovskite TFTs—valued for their stability but intrinsically limited by poor charge transport—to achieve performance compatible to that of high-performance three-dimensional (3D) perovskite TFTs. Confinement within periodic nanograting grooves simultaneously enhances crystallinity—thereby suppressing trap formation—and induces near-surface compressive lattice strain that lowers the carrier effective mass. The resulting TFTs achieve a record-high field-effect mobility of 24.08 cm2V−1s−1 among 2D Sn halide perovskites, with on/off ratios exceeding 107, a subthreshold swing of 0.95 V dec−1, and minimal hysteresis. The devices exhibit exceptional operational stability under cyclic bias, prolonged bias stress, and dynamic switching, as well as prolonged air and thermal stability. This work establishes nanoscale crystallization control as a powerful approach for unlocking the performance and stability potential of lead-free perovskite electronics.
锡卤化钙钛矿是下一代电子产品中很有前途的无铅半导体,但其易氧化、快速结晶和高缺陷密度阻碍了其在高性能薄膜晶体管(tft)中的应用。在这里,我们提出了一种模板辅助结晶策略,使二维(2D)金属卤化物钙钛矿tft -其稳定性受到重视,但本质上受到电荷传输不良的限制-实现与高性能三维(3D)钙钛矿tft的性能兼容。在周期性纳米光栅沟槽内的限制同时增强了结晶度,从而抑制了陷阱的形成,并引起近表面压缩晶格应变,从而降低了载流子的有效质量。所得到的tft在二维卤化锡钙钛矿中实现了创纪录的高场效应迁移率24.08 cm2V−1s−1,开/关比超过107,亚阈值摆动为0.95 V dec−1,迟滞最小。该器件在循环偏置、长时间偏置应力和动态开关以及长时间空气和热稳定性下表现出优异的工作稳定性。这项工作建立了纳米级结晶控制作为释放无铅钙钛矿电子产品性能和稳定性潜力的有力方法。
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引用次数: 0
A dual-mode vision sensor based on a ferroelectric BixSm2-xO3 film for high-contrast imaging 基于铁电BixSm2-xO3薄膜的高对比度成像双模视觉传感器
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-25 DOI: 10.1016/j.nanoen.2025.111619
Yaning Xu , Chong Guo , Weiqi Qian , Chris R. Bowen , Ya Yang
Ferroelectric materials, owing to their unique optoelectronic effect and intrinsic polarization fields, are capable of accurately extract image features in outdoor lighting environments, which is highly challenging in machine vision systems. However, conventional ferroelectric-based vision sensors, confined to image sensing, incur latency and additional power consumption during data transmission. Here we report a dual-mode vision sensor based on a ferroelectric BixSm2-xO3 film that achieves high-contrast imaging and storage functionalities. By strategically leveraging the photoelectric effect and the heat-sensitive characteristic of the ferroelectric polarization field, the polarization intensity of the ferroelectric film can be precisely modulated to achieve time-scale controllable photocurrent reversal, thereby significantly enhancing imaging contrast, while exploiting the non-volatile nature of the ferroelectric polarization to achieve an image storage functionality. The developed sensor array facilitates accurate extraction of target shape features, enabling high-contrast imaging in uneven light conditions. This integrated sensing-memory architecture establishes a new paradigm for robust machine vision systems operating in challenging environmental conditions.
铁电材料由于其独特的光电效应和固有的极化场,能够在室外照明环境中准确提取图像特征,这在机器视觉系统中具有很高的挑战性。然而,传统的基于铁电的视觉传感器仅限于图像传感,在数据传输过程中会产生延迟和额外的功耗。本文报道了一种基于铁电BixSm2-xO3薄膜的双模视觉传感器,该传感器实现了高对比度成像和存储功能。通过策略性地利用铁电极化场的光电效应和热敏特性,可以精确调制铁电薄膜的极化强度,实现时间尺度可控的光电流反转,从而显著增强成像对比度,同时利用铁电极化的非易失性实现图像存储功能。开发的传感器阵列有助于准确提取目标形状特征,在不均匀光照条件下实现高对比度成像。这种集成的感知记忆架构为在具有挑战性的环境条件下运行的鲁棒机器视觉系统建立了新的范例。
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引用次数: 0
Self-powered heart real-time monitoring system based on triboelectric and piezoelectric hybrid nanogenerator and artificial intelligence technology 基于摩擦电和压电混合纳米发电机和人工智能技术的自供电心脏实时监测系统
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-24 DOI: 10.1016/j.nanoen.2025.111615
Shuangdou Wu , Yiming Han , Mengzhe Kang , Yuankai Zhou , Yan Zhang
By converting biomechanical energy from human walking into electrical energy, the triboelectric and piezoelectric hybrid nanogenerator (TPHG) can immediately and sustainably power the heart rate monitoring system. The designed system displays a swift runtime of 14 ms and low energy consumption at 220 μJ. The acquired electrocardiogram (ECG) signals can be transferred by a wireless module to an artificial intelligence (AI) cloud server and displayed on a smartphone or personal computer in real time. This work paves the key way for designing self-powered real-time monitoring systems.
通过将人体行走产生的生物机械能转化为电能,摩擦电和压电混合纳米发电机(TPHG)可以立即持续地为心率监测系统供电。该系统运行速度快,在220 μJ时功耗低,运行时间为14 ms。采集到的心电图信号可以通过无线模块传输到人工智能(AI)云服务器上,并实时显示在智能手机或个人电脑上。这项工作为设计自供电实时监测系统铺平了关键道路。
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引用次数: 0
Trap-anchor-catalysis design in boosting halogen chemistry for high-performance aqueous zinc-iodine batteries 捕集-锚定-催化设计在提高高性能锌碘水电池卤素化学中的应用
IF 17.1 1区 材料科学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-11-24 DOI: 10.1016/j.nanoen.2025.111616
Shuai Wang, Jing Han, Yana Xiao, Xinlong Liu, Shenzhen Deng, Tiandi Chen, Cuiqin Fang, Bingang Xu
The polyiodide shuttle effects and sluggish iodine redox kinetics significantly impede the broader applications of aqueous zinc-iodine batteries (AZIBs). Therefore, exploring high-capacity host materials with “trap-anchor-catalysis” sites is of great significance to the development of AZIBs. Herein, hydrogen-rich host materials (labeled as CCAs) with a high specific surface area and microporous structure were synthesized using a self-template method, which features the “trap-catalysis” sites (calcium hydroxide) in-situ embedded within the carbon skeletons. Benefiting from the integrated advantages of strong confinement and enhanced catalysis behaviors, this host material enables high conversion efficiency and rapid redox kinetics of I2/I-, thus achieving high utilization of the iodine cathode and a corrosion-free zinc anode. Moreover, the reversible rehybridization of sp2-C to sp3-C endows the host material with additional “active-anchor” sites, facilitating a more efficient reaction pathway and faster electron transfer in halogen chemistry. The resulting I2@CCA-800 cathodes deliver a capacity of ∼210 mAh g−1 at 0.5 A g−1 and a stable cycling life of 40,000 cycles (86.7 % retention at 10 A g−1). More importantly, the CCA-800 host material possesses good reusability; after iodine reloading, the recycled devices maintain a capacity of ∼110 mAh g−1 at 5 A g−1 over 10,000 cycles. This study provides valuable insights into the rational structural design of hydrogen-rich host materials for efficient halogen chemistry in AZIBs.
多碘离子穿梭效应和缓慢的碘氧化还原动力学严重阻碍了水相锌碘电池(AZIBs)的广泛应用。因此,探索具有“陷阱-锚定-催化”位点的高容量宿主材料对azib的发展具有重要意义。本文采用自模板法合成了具有高比表面积和微孔结构的富氢宿主材料(标记为CCAs),其特征是“陷阱催化”位点(氢氧化钙)原位嵌入碳骨架中。得益于强约束和增强催化行为的综合优势,该主体材料可以实现I2/I-的高转化效率和快速氧化还原动力学,从而实现碘阴极和无腐蚀锌阳极的高利用率。此外,sp2-C到sp3-C的可逆再杂化为宿主材料提供了额外的“活性锚”位点,促进了卤素化学中更有效的反应途径和更快的电子转移。得到的I2@CCA-800阴极在0.5 a g-1下的容量为~210 mAh g-1,稳定的循环寿命为40,000次(在10 a g-1下保持86.7%)。更重要的是,CCA-800宿主材料具有良好的可重复使用性;在碘重新加载后,回收装置在5 a g-1下保持约110 mAh g-1的容量,超过10,000次循环。该研究为azib中高效卤素化学的富氢主体材料的合理结构设计提供了有价值的见解。
{"title":"Trap-anchor-catalysis design in boosting halogen chemistry for high-performance aqueous zinc-iodine batteries","authors":"Shuai Wang,&nbsp;Jing Han,&nbsp;Yana Xiao,&nbsp;Xinlong Liu,&nbsp;Shenzhen Deng,&nbsp;Tiandi Chen,&nbsp;Cuiqin Fang,&nbsp;Bingang Xu","doi":"10.1016/j.nanoen.2025.111616","DOIUrl":"10.1016/j.nanoen.2025.111616","url":null,"abstract":"<div><div>The polyiodide shuttle effects and sluggish iodine redox kinetics significantly impede the broader applications of aqueous zinc-iodine batteries (AZIBs). Therefore, exploring high-capacity host materials with “trap-anchor-catalysis” sites is of great significance to the development of AZIBs. Herein, hydrogen-rich host materials (labeled as CCAs) with a high specific surface area and microporous structure were synthesized using a self-template method, which features the “trap-catalysis” sites (calcium hydroxide) <em>in-situ</em> embedded within the carbon skeletons. Benefiting from the integrated advantages of strong confinement and enhanced catalysis behaviors, this host material enables high conversion efficiency and rapid redox kinetics of I<sub>2</sub>/I<sup>-</sup>, thus achieving high utilization of the iodine cathode and a corrosion-free zinc anode. Moreover, the reversible rehybridization of sp<sup>2</sup>-C to sp<sup>3</sup>-C endows the host material with additional “active-anchor” sites, facilitating a more efficient reaction pathway and faster electron transfer in halogen chemistry. The resulting I<sub>2</sub>@CCA-800 cathodes deliver a capacity of ∼210 mAh g<sup>−1</sup> at 0.5 A g<sup>−1</sup> and a stable cycling life of 40,000 cycles (86.7 % retention at 10 A g<sup>−1</sup>). More importantly, the CCA-800 host material possesses good reusability; after iodine reloading, the recycled devices maintain a capacity of ∼110 mAh g<sup>−1</sup> at 5 A g<sup>−1</sup> over 10,000 cycles. This study provides valuable insights into the rational structural design of hydrogen-rich host materials for efficient halogen chemistry in AZIBs.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"147 ","pages":"Article 111616"},"PeriodicalIF":17.1,"publicationDate":"2025-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145583735","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
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