先进原位表征技术解码锂电池

杨梅; 毕如一; 王江艳; 于然波; 王丹

doi:10.1007/s12613-022-2461-0

Volume 29 Issue 5

Apr. 2022

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文章导航 > 矿物冶金与材料学报（英文） > 2022 > 29(5): 965-989

Mei Yang, Ruyi Bi, Jiangyan Wang, Ranbo Yu, and Dan Wang, Decoding lithium batteries through advanced in situcharacterization techniques, Int. J. Miner. Metall. Mater., 29(2022), No. 5, pp. 965-989. https://doi.org/10.1007/s12613-022-2461-0

Cite this article as:

Mei Yang, Ruyi Bi, Jiangyan Wang, Ranbo Yu, and Dan Wang, Decoding lithium batteries through advanced in situcharacterization techniques, Int. J. Miner. Metall. Mater., 29(2022), No. 5, pp. 965-989. https://doi.org/10.1007/s12613-022-2461-0

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特约综述

先进原位表征技术解码锂电池

1)
中国科学院过程工程研究所生化工程国家重点实验室，北京 100190，中国
2)
中国科学院大学化工学院，北京 100049，中国
3)
北京科技大学冶金与生态工程学院储能科学与工程系，北京 100083，中国

通讯作者:
王江艳    E-mail: jywang@ipe.ac.cn

于然波    E-mail: ranboyu@ustb.edu.cn

王丹    E-mail: danwang@ipe.ac.cn

文章亮点

(1) 系统介绍了锂电池原位表征技术发展现状和重要进展。

(2) 探讨了原位多模态耦合表征技术的进展、特征和意义。

(3) 总结锂电池原位表征面临的挑战，提出了时空匹配的多模态原位表征技术是未来的发展方向。

中文摘要

现代社会日益增长的能源需求要求开发更高效、更经济的储能系统，锂电池具有高能量密度和长循环寿命，在便携式电子产品、电动汽车等多种领域占据主导地位。锂电池的原位表征不仅能够表征电池关键部件静态信息，更为关键的是能够捕获充放电动态变化中材料电化学行为和多尺度结构演变过程，从而在微观、介观和宏观尺度上将电化学过程与组成、微观形貌、相结构等关联起来，为理解电池失效机制、新材料设计和开发、废旧电池回收利用提供帮助。鉴于这一目标，锂电池原位表征技术和应用取得了巨大进步，包括原位电池装置设计，用于监测电极材料结构和操作条件下的表面/界面化学演变。本文综述了近年来锂电池原位表征的研究进展，在单一原位技术的基础上，重点探讨了多模态耦合表征的特点、现状，虽然多模态耦合还处于起步阶段，但它能更高效地表征锂电池中的多尺度结构和组成演变规律，将成为未来发展的趋势，如何突破不同表征技术时间、空间分辨率的差异，获得时空匹配信息是多模态耦合的关键和难点。基于代表性的电极材料和电解质成分，系统地讨论了原位表征技术如何揭示不同电极体系的电化学过程和基本机理。最后，我们综合分析了锂电池原位表征所面临的挑战，未来的机遇和可能的发展方向，以期推动未来锂电池的发展，加速下一代电池的商业化。

关键词:

Invited Review

Decoding lithium batteries through advanced in situcharacterization techniques

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Abstract

Abstract

Given the energy demands of the electromobility market, the energy density and safety of lithium batteries (LBs) need to be improved, whereas its cost needs to be decreased. For the enhanced performance and decreased cost, more suitable electrode and electrolyte materials should be developed based on the improved understanding of the degradation mechanisms and structure–performance correlation in the LB system. Thus, various in situ characterization technologies have been developed during the past decades, providing abundant guidelines on the design of electrode and electrolyte materials. Here we first review the progress of in situ characterization of LBs and emphasize the feature of the multi-model coupling of different characterization techniques. Then, we systematically discuss how in situ characterization technologies reveal the electrochemical processes and fundamental mechanisms of different electrode systems based on representative electrode materials and electrolyte components. Finally, we discuss the current challenges, future opportunities, and possible directions to promote in situ characterization technologies for further improvement of the battery performance.
- in situ;
- characterization techniques;
- multi-modal coupling;
- lithium batteries;
- electrochemical mechanism

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