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Carbon-anchored Sb nanoparticles as high-capacity and stable anode for aqueous alkaline batteries 碳锚定Sb纳米粒子作为水性碱性电池的高容量稳定阳极
Pub Date : 2023-07-13 DOI: 10.1002/bte2.20230016
Yanxia Yu, Ruofei Qin, Xin Shi, Jinhao Xie, Tzu-Hao Lu, Xihong Lu

Antimony (Sb) holds a high theoretic capacity and suitable redox potential as a promising anode for aqueous alkaline batteries (AABs). However, the uncontrollable nucleation for SbO2 and promiscuous water-induced side reactions severely degrade the reversibility of Sb anode. Herein, the carbon-anchored Sb nanoparticles are constructed to induce uniform Sb plating/stripping for high-performance AABs. The experimental results reveal that the enhanced interaction between carbon and antimony as well as defective carbon can significantly improve the electrical conductivity and decrease the Sb nucleation overpotential. Accordingly, the as-prepared Sb anode enables preferential plating of Sb rather than parasitic side reactions. As a result, the cycle life of A-Sb/CF is sustained over 500 cycles at 10 mA cm−2/2 mAh cm−2. Even at the high capacity of 4 mAh cm−2, this anode can cycle stably for 225 cycles, which is significantly better than the Sb/CF counterpart. Furthermore, the assembled Ni3S2@Ni(OH)2//A-Sb/CF full battery demonstrates a high capacity of 2.17 mAh cm−2 and a stable cycle life of over 500 cycles.

锑(Sb)具有较高的理论容量和合适的氧化还原电位,是一种很有前途的水性碱性电池(AABs)阳极。然而,SbO2−的不可控成核和混杂的水引发的副反应严重降低了Sb阳极的可逆性。本文构建了碳锚定的Sb纳米颗粒,以诱导高性能AAB的均匀Sb电镀/剥离。实验结果表明,碳与锑以及缺陷碳之间的相互作用增强,可以显著提高电导率,降低锑的成核过电位。因此,所制备的Sb阳极能够优先电镀Sb,而不是寄生副反应。因此,a-Sb/CF的循环寿命在10 毫安 厘米−2/2 毫安时 cm−2。即使在4的高容量下 毫安时 cm−2,这种阳极可以稳定地循环225次,这明显优于Sb/CF对应物。此外Ni3S2@Ni(OH)2//A-Sb/CF全电池显示出2.17的高容量 毫安时 cm−2,稳定的循环寿命超过500个循环。
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引用次数: 1
Cover Image, Volume 2, Issue 4, July 2023 封面图片,第2卷第4期,2023年7月
Pub Date : 2023-07-04 DOI: 10.1002/bte2.12118

Front Cover: In article number BTE2.20230002, Xiangming He and co-workers have shown the unique intrinsic hierarchical covalent organic framework is explored as a promising cathode material for lithium-sulfur batteries, in which the polarized sites show great potential to confine the polysulfides and accelerate lithium ions transport.

封面:在文章编号BTE2.20230002中,何向明及其同事展示了独特的本征分级共价有机骨架作为一种有前途的锂硫电池正极材料,其中的极化位点显示出限制多硫化物和加速锂离子传输的巨大潜力。
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引用次数: 0
Back Cover Image, Volume 2, Issue 4, July 2023 封底图片,第2卷,第4期,2023年7月
Pub Date : 2023-07-04 DOI: 10.1002/bte2.12119

Back Cover: In article number BTE2.20230010, Ho Won Jang and co-workers have represented the movement of Li ions and the flow of electrons, illustrating their respective pathways within the battery's internal structure and connecting wires. The battery depicted in the lower center highlights the important components discussed in our manuscript, including the crystalline solid-state cathode, electrolyte, and anode. Furthermore, we have included an image illustrating the application of this battery's electrical energy in powering an electric vehicle, along with an additional depiction of the charging process.

封底:在编号为BTE2.20230010的文章中,Ho Won Jang及其同事代表了锂离子的运动和电子的流动,说明了它们在电池内部结构和连接线中的各自路径。中心下方描绘的电池突出了我们手稿中讨论的重要组件,包括晶体固态阴极、电解质和阳极。此外,我们还附上了一张图片,展示了这种电池的电能在为电动汽车供电时的应用,以及对充电过程的额外描述。
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引用次数: 0
Failure analysis of lead-acid batteries at extreme operating temperatures 铅酸蓄电池在极端工作温度下的失效分析
Pub Date : 2023-06-06 DOI: 10.1002/bte2.20230008
Umesh Prasad, Jyoti Prakash, Arunachala Nadar M. Kannan, Venkat Kamavaram, Ganesh K. Arumugam

The lead-acid battery system is designed to perform optimally at ambient temperature (25°C) in terms of capacity and cyclability. However, varying climate zones enforce harsher conditions on automotive lead-acid batteries. Hence, they aged faster and showed lower performance when operated at extremity of the optimum ambient conditions. In this work, a systematic study was conducted to analyze the effect of varying temperatures (−10°C, 0°C, 25°C, and 40°C) on the sealed lead acid. Enersys® Cyclon (2 V, 5 Ah) cells were cycled at C/10 rate using a battery testing system. Environmental aging results in shorter cycle life due to the degradation of electrode and grid materials at higher temperatures (25°C and 40°C), while at lower temperatures (−10°C and 0°C), negligible degradation was observed due to slower kinetics and reduced available capacity. Electrochemical impedance spectroscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy analysis were used to evaluate the degradation mechanism and chemical and morphological changes.

铅酸蓄电池系统设计为在环境温度(25°C)下,在容量和可循环性方面表现最佳。然而,不同的气候区对汽车铅酸电池施加了更苛刻的条件。因此,当在最佳环境条件的极限下操作时,它们老化得更快,表现出更低的性能。在这项工作中,进行了一项系统的研究,以分析不同温度(−10°C、0°C、25°C和40°C)对密封铅酸的影响。Enersys®Cyclon(2 V、 5 Ah)电池使用电池测试系统以C/10的速率循环。由于电极和栅极材料在较高温度(25°C和40°C)下的降解,环境老化导致循环寿命缩短,而在较低温度(−10°C和0°C)时,由于动力学较慢和可用容量降低,观察到的降解可忽略不计。电化学阻抗谱、X射线衍射和能量色散X射线光谱分析用于评估降解机理以及化学和形态变化。
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引用次数: 0
Nanoemulsion-directed assembly of hierarchical ZnS@C nanospheres with penetrating pores for sodium storage 纳米乳液定向分级组装ZnS@C具有穿透孔的钠储存纳米球
Pub Date : 2023-06-01 DOI: 10.1002/bte2.20230001
Xiaowei He, Sifei Zhuo, Lidong Tian, Mingtao Qiao, Xingfeng Lei, Hepeng Zhang, Qiuyu Zhang

To follow up on the performance of lithium-ion batteries (LIBs), transition metal sulfides (TMSs) have been developed as promising carbon alternatives for sodium-ion batteries (SIBs). Although attractive, it is still a great challenge to fulfill their capacity utilization with high cycling performance. Herein, a nanoemulsion-directed method has been developed to control the spherical arrangement of ZnS@C units with both penetrating macropores from the center to the surface and inner mesopores distributed among the bulks. With respect to ion diffusion, the penetrating macropores could serve as the built-in ion-buffer reservoirs to keep a steady flow of electrolyte, while the inner mesopores facilitate the ion diffusion across the whole bulks. In terms of stability, the radical porous structure could work as self-supported vertical bones to accommodate the volume change from both lateral and vertical sides. Besides, the localized carbon distributed among the ZnS nanoparticles not only acts as binding agents to join the numerous ZnS nanoparticles but also endows the radical bones with effective electron transmission capability. As a proof of concept, such hydrangea-like ZnS@C nanospheres deliver sodium storage performance with high-rate and long-cycling capability. This nanoemulsion-directed approach is anticipated for other TMSs with penetrating pores for post-lithium-ion batteries applications.

为了跟踪锂离子电池(LIBs)的性能,过渡金属硫化物(TMSs)已被开发为钠离子电池(SIBs)的有前途的碳替代品。尽管有吸引力,但要以高循环性能实现其容量利用率仍然是一个巨大的挑战。在此,已经开发了一种纳米乳液导向的方法来控制ZnS@C从中心到表面具有穿透性大孔和内部中孔的单元分布在块状物之间。关于离子扩散,穿透性大孔可以作为内置的离子缓冲库,以保持电解质的稳定流动,而内部中孔有助于离子在整个体积上扩散。就稳定性而言,自由基多孔结构可以作为自支撑的垂直骨骼工作,以适应横向和垂直侧的体积变化。此外,分布在ZnS纳米颗粒之间的局部碳不仅作为结合剂连接众多的ZnS纳米粒子,而且赋予自由基骨有效的电子传输能力。作为概念的证明,这种绣球花ZnS@C纳米球具有高速率和长循环能力的钠储存性能。这种纳米乳液导向的方法预计可用于其他具有穿透孔的TMS,用于后锂离子电池应用。
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引用次数: 6
Highly textured and crystalline materials for rechargeable Li-ion batteries 用于可充电锂离子电池的高纹理和结晶材料
Pub Date : 2023-05-29 DOI: 10.1002/bte2.20230010
Min-Ju Choi, Ji Hyun Baek, Jae Young Kim, Ho Won Jang

To build an environment-friendly energy-based society, it is important to develop stable and high-performance batteries as an energy storage system. However, there are still unresolved challenges associated with safety issues, slow kinetics, and lifetime. To overcome these problems, it is essential to understand the battery systems including cathode, electrolyte, and anode. Using a well-controlled material system such as epitaxial films, textured films, and single crystals can be a powerful strategy to investigate the relationship between microstructural and electrochemical properties. In this review, we discuss the need for research with well-controlled materials system and recent progress in the well-controlled cathode, solid-state-electrolyte, and anode materials for Li-ion batteries. Enhanced stability and electrochemical performance due to the facilitation of prolonged and endured Li-ion transport in facet-controlled battery materials are highlighted. Finally, the challenges and future directions utilizing the well-controlled battery system for high-performance battery are proposed.

为了建设一个环境友好的能源社会,开发稳定、高性能的电池作为储能系统至关重要。然而,仍然存在与安全问题、缓慢动力学和寿命相关的未解决的挑战。为了克服这些问题,必须了解电池系统,包括阴极、电解质和阳极。使用良好控制的材料系统,如外延膜、纹理膜和单晶,可以成为研究微观结构和电化学性能之间关系的有力策略。在这篇综述中,我们讨论了研究良好控制材料体系的必要性,以及用于锂离子电池的良好控制阴极、固态电解质和阳极材料的最新进展。由于在面控电池材料中促进了长时间和持久的锂离子传输,因此增强了稳定性和电化学性能。最后,提出了利用良好控制的电池系统进行高性能电池的挑战和未来方向。
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引用次数: 4
NiCo alloy-anchored self-supporting carbon foam as a bifunctional oxygen electrode for rechargeable and flexible Zn–air batteries NiCo合金锚定自支撑碳泡沫作为可充电和柔性锌-空气电池的双功能氧电极
Pub Date : 2023-05-22 DOI: 10.1002/bte2.20220063
Mengyang Dong, Huai Qin Fu, Yiming Xu, Yu Zou, Ziyao Chen, Liang Wang, Mengqing Hu, Kaidi Zhang, Bo Fu, Huajie Yin, Porun Liu, Huijun Zhao

The design and fabrication of flexible, porous, conductive electrodes with customizable functions become the prime challenge in the development of new-generation wearable electronics, especially for rechargeable batteries. Here, the NiCo bialloy particulate catalyst-loaded self-supporting carbon foam framework (NiCo@SCF) as a flexible electrode has been fabricated through one facile adsorption-pyrolysis method using a commercial melamine foam. Compared with the electrode with Pt/C and Ir/C benchmark catalysts, the NiCo@SCF electrode exhibited superior bifunctional electrocatalytic performance in alkaline media with a half-wave potential of 0.906 V for oxygen reduction reaction, an overpotential of 286 mV at j = 10 mA cm−2 for oxygen evolution reaction, and stable bifunctional performance with a small degradation after 20,000 voltammetric cycles. The as-assembled aqueous zinc–air battery (ZAB) with NiCo@SCF as a self-supporting air cathode demonstrated a high peak power density of 178.6 mW cm−2 at a current density of 10 mA cm−2 and a stable voltage gap of 0.94 V over a 540 h charge−discharge operation. Remarkably, the as-assembled flexible solid-state ZAB with self-supporting NiCo@SCF as the air cathode presented an engaging peak power density of 80.1 mW cm−2 and excellent durability of 95 h undisrupted operation, showing promise for the design of wearable ZAB. The demonstrated electrode fabrication approach exemplifies a facile, large-scale avenue toward functional electrodes, potentially extendable to other wearable electronics for broader applications.

具有可定制功能的柔性、多孔导电电极的设计和制造成为新一代可穿戴电子产品开发的主要挑战,尤其是可充电电池。这里,负载NiCo双合金颗粒催化剂的自支撑碳泡沫框架(NiCo@SCF)因为柔性电极已经通过一种使用商业三聚氰胺泡沫的简单吸附热解方法制备。与Pt/C和Ir/C基准催化剂的电极相比NiCo@SCF电极在半波电位为0.906的碱性介质中表现出优异的双功能电催化性能 V表示氧还原反应,过电位为286 j时mV = 10 毫安 cm−2用于析氧反应,并且在20000次伏安循环后具有稳定的双功能性能和较小的降解。组装好的水性锌-空气电池(ZAB)NiCo@SCF作为自支撑空气阴极,其峰值功率密度高达178.6 mW 电流密度为10时为cm−2 毫安 cm−2和0.94的稳定电压间隙 V超过540 h充放电操作。值得注意的是,组装后的柔性固态ZAB具有自支撑功能NiCo@SCF因为空气阴极呈现出80.1的接合峰值功率密度 mW cm−2,出色的耐用性达到95 h无中断操作,显示出可穿戴ZAB设计的前景。所展示的电极制造方法为功能电极提供了一条简单、大规模的途径,有可能扩展到其他可穿戴电子产品,以获得更广泛的应用。
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引用次数: 4
DBD plasma-assisted coating of metal alkoxides on sulfur powder for Li–S batteries DBD等离子体辅助金属醇盐在锂硫电池硫粉上的涂层
Pub Date : 2023-05-22 DOI: 10.1002/bte2.20220053
Ahmed Shafique, Annick Vanhulsel, Vijay S. Rangasamy, Kitty Baert, Tom Hauffman, Peter Adriaensens, Mohammadhosein Safari, Marlies K. Van Bael, An Hardy, Sébastien Sallard

Sulfur particles coated by activation of metal alkoxide precursors, aluminum–sulfur (Alu–S) and vanadium–sulfur (Van–S), were produced by dielectric barrier discharge (DBD) plasma technology under low temperature and ambient pressure conditions. We report a safe, solvent-free, low-cost, and low-energy consumption coating process that is compatible for sustainable technology up-scaling. NMR, XPS, SEM, and XRD characterization methods were used to determine the chemical characteristics and the superior behavior of Li–S cells using metal oxide-based coated sulfur materials. The chemical composition of the coatings is a mixture of the different elements present in the metal alkoxide precursor. The presence of alumina Al2O3 within the coating was confirmed. Multi-C rate and long-term galvanostatic cycling at rate C/10 showed that the rate capability losses and capacity fade could be highly mitigated for the Li–S cells containing the coated sulfur materials in comparison to the references uncoated (raw) sulfur. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) confirm the lower charge-transfer resistance and potential hysteresis in the electrodes containing the coated sulfur particles. Our results show that the electrochemical performance of the Li–S cells based on the different coating materials can be ranked as Alu-S > Van-S > Raw sulfur.

采用介质阻挡放电(DBD)等离子体技术,在低温常压条件下制备了金属醇盐前体铝-硫(Alu–S)和钒-硫(Van–S)活化包覆的硫颗粒。我们报告了一种安全、无溶剂、低成本和低能耗的涂层工艺,该工艺与可持续技术的扩展兼容。使用NMR、XPS、SEM和XRD表征方法来确定使用金属氧化物基涂层硫材料的Li–S电池的化学特性和优异行为。涂层的化学成分是金属醇盐前体中存在的不同元素的混合物。确认了氧化铝Al2O3在涂层内的存在。多C速率和C/10速率下的长期恒流循环表明,与参考未涂覆(原始)硫相比,含有涂覆硫材料的Li–S电池的速率-容量损失和容量衰减可以得到高度缓解。电化学阻抗谱(EIS)和循环伏安法(CV)证实了含有涂层硫颗粒的电极中较低的电荷转移电阻和电位滞后。我们的结果表明,基于不同涂层材料的Li–S电池的电化学性能可以归类为Alu-S >; Van-S >; 生硫。
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引用次数: 1
Regeneration of spent lithium manganate into cation-doped and oxygen-deficient MnO2 cathodes toward ultralong lifespan and wide-temperature-tolerant aqueous Zn-ion batteries 废锰酸锂再生成阳离子掺杂和缺氧MnO2阴极,实现超长寿命和宽耐温水性锌离子电池
Pub Date : 2023-05-22 DOI: 10.1002/bte2.20220065
Qi Yao, Fuyu Xiao, Chuyuan Lin, Peixun Xiong, Wenbin Lai, Jixiang Zhang, Hun Xue, Xiaoli Sun, Mingdeng Wei, Qingrong Qian, Lingxing Zeng, Qinghua Chen

Manganese-based compounds have been regarded as the most promising cathode materials for rechargeable aqueous zinc-ion batteries (AZIBs) due to their high theoretical capacity. Unfortunately, aqueous Zn–manganese dioxide (MnO2) batteries have poor cycling stability and are unstable across a wide temperature range, severely limiting their commercial application. Cationic preinsertion and defect engineering might increase active sites and electron delocalization, which render the high mobility of the MnO2 cathode when operated across a wide temperature range. In the present work, for the first time, we successfully introduced lithium ions and ammonium ions into manganese dioxide (LNMOd@CC) by an electrodeposition combined with low-temperature calcination route using spent lithium manganate as a raw material. The obtained LNMOd@CC exhibits a high reversible capacity (300 mAh g−1 at 1 A g−1) and an outstanding long lifespan of over 9000 cycles at 5.0 A g−1 with a capacity of 152 mAh g−1, which is significant for both the high-value recycling of spent lithium manganate batteries and high-performance modification for MnO2 cathodes. Besides, the LNMOd@CC demonstrates excellent electrochemical performance across wide temperature ranges (0–50°C). This strategy simultaneously alleviates the shortage of raw materials and fabricates electrodes for new battery systems. This work provides a new strategy for recovering cathode materials of spent lithium-ion batteries and designing aqueous multivalent ion batteries.

锰基化合物由于其高理论容量而被认为是可再充电水性锌离子电池(AZIB)最有前途的阴极材料。不幸的是,水性锌-二氧化锰(MnO2)电池的循环稳定性较差,在较宽的温度范围内不稳定,严重限制了其商业应用。阳离子预插入和缺陷工程可能会增加活性位点和电子离域,这使得MnO2阴极在宽温度范围内工作时具有高迁移率。在目前的工作中,我们首次成功地将锂离子和铵离子引入二氧化锰(LNMOd@CC)以废锰酸锂为原料,通过电沉积结合低温煅烧路线。获得的LNMOd@CC显示出高的可逆容量(300 毫安时 g−1在1 A. g−1),并且在5.0下具有超过9000次循环的卓越长寿命 A. g−1,容量为152 毫安时 g−1,这对于废锰酸锂电池的高价值回收和MnO2阴极的高性能改性都具有重要意义。此外LNMOd@CC在较宽的温度范围(0-50°C)内表现出优异的电化学性能。这种策略同时缓解了原材料的短缺,并为新的电池系统制造了电极。这项工作为回收废旧锂离子电池的正极材料和设计水性多价离子电池提供了一种新的策略。
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引用次数: 5
A high-capacity dual-ion full battery based on nitrogen-doped carbon nanosphere anode and concentrated electrolyte 基于氮掺杂碳纳米球阳极和浓缩电解质的高容量双离子全电池
Pub Date : 2023-05-18 DOI: 10.1002/bte2.20230009
Hongzheng Wu, Shenghao Luo, Li Li, Hong Xiao, Wenhui Yuan

Dual-ion batteries (DIBs) are often criticized for their low discharge capacity and poor cyclic capability despite their inherent high working voltage, low manufacturing cost, and environmental friendliness. To solve these shortcomings, many attempts and efforts have been devoted, but all ended in unsatisfactory results. Herein, a hierarchical porous carbon nanosphere anode with ultrahigh nitrogen doping is developed, which exhibits fast ion transport kinetics and excellent Li+ storage capability. Moreover, employing a concentrated electrolyte is expected to bring a series of advantages such as stable SEI for facilitating ion transmission, enhanced cycling performance, high specific capacity, and operation voltage. These advantages endow the assembled full DIBs with excellent performance as a super-high specific discharge capacity of 351 mAh g−1 and can be cycled stably for 1300 cycles with Coulombic efficiency (CE) remaining at 99.5%; a high operating voltage range of 4.95–3.63 V and low self-discharge rate of 2.46% h−1 with stable fast charging-slow discharging performance. Through electrochemical measurements and physical characterizations, the possible working mechanism of the proof-of-concept full battery and the structural variations of electrodes during cycling are investigated. The design strategy of novel battery system in this work will promote the development of high-performance DIBs.

尽管双离子电池具有固有的高工作电压、低制造成本和环境友好性,但其放电容量低和循环能力差经常受到批评。为了解决这些不足,我们进行了许多尝试和努力,但都以不理想的结果告终。本文开发了一种具有超高氮掺杂的分级多孔碳纳米球阳极,该阳极具有快速的离子传输动力学和优异的Li+存储能力。此外,使用浓缩电解质有望带来一系列优点,例如用于促进离子传输的稳定SEI、增强的循环性能、高比容量和操作电压。这些优点使组装的全DIB具有优异的性能,其比放电容量为351 mAh g−1,可稳定循环1300次,库仑效率(CE)保持在99.5%;4.95–3.63的高工作电压范围 V和2.46%h−1的低自放电率,具有稳定的快充慢放性能。通过电化学测量和物理表征,研究了概念验证全电池的可能工作机制以及循环过程中电极的结构变化。本工作中新型电池系统的设计策略将促进高性能DIB的发展。
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引用次数: 3
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Battery Energy
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