储能科学与技术 ›› 2021, Vol. 10 ›› Issue (4): 1237-1252.doi: 10.19799/j.cnki.2095-4239.2021.0274

• 热点点评 • 上一篇    下一篇

锂电池百篇论文点评(2021.4.12021.5.31

岑官骏(), 乔荣涵, 申晓宇, 田孟羽, 季洪祥, 田丰, 起文斌, 金周, 武怿达, 詹元杰, 闫勇, 贲留斌, 俞海龙, 刘燕燕, 黄学杰()   

  1. 中国科学院物理研究所,北京 100190
  • 收稿日期:2021-06-18 出版日期:2021-07-05 发布日期:2021-06-25
  • 通讯作者: 黄学杰 E-mail:cenguanjun15@mails.ucas.ac.cn;xjhuang@jphy.ac.an
  • 作者简介:岑官骏(1997—),男,博士研究生,研究方向为固态锂离子电池负极材料,E-mail:cenguanjun15@mails.ucas.ac.cn

Reviews of selected 100 recent papers for lithium batteries Apr. 1 2021 to May 31 2021

Guanjun CEN(), Ronghan QIAO, Xiaoyu SHEN, Mengyu TIAN, Hongxiang JI, Feng TIAN, Wenbin QI, Zhou JIN, Yida WU, Yuanjie ZHAN, Yong YAN, Liubin BEN, Hailong YU, Yanyan LIU, Xuejie HUANG()   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2021-06-18 Online:2021-07-05 Published:2021-06-25
  • Contact: Xuejie HUANG E-mail:cenguanjun15@mails.ucas.ac.cn;xjhuang@jphy.ac.an

摘要:

该文是一篇近两个月的锂电池文献评述,以“lithium”和“batter*”为关键词检索了Web of Science从2021年4月1日至2021年5月31日上线的锂电池研究论文,共有3015篇,选择其中100篇加以评论。正极材料方面的研究主要集中在层状结构高镍三元、高压钴酸锂和尖晶石结构镍锰酸锂的合成条件、表面包覆和体相掺杂改性。硅基复合负极材料的研究重点包括对硅颗粒的包覆和对电极结构的优化以缓冲体积变化。金属锂负极的研究侧重于通过电解液添加剂来调控SEI的生长以及抑制锂枝晶的形成。固态电解质的研究主要包括对氧化物固态电解质、硫化物固态电解质、聚合物固态电解质以及复合固态电解质的合成、结构设计以及相关性能研究。液态电解液方面的研究主要包括提升石墨、硅负极的性能,以及适应高电压镍锰酸锂、三元层状材料、钴酸锂材料等正极材料电池的电解液溶剂、锂盐及添加剂。固态电池方向更多关注于复合正极设计和制备、活性材料表面的修饰、Li金属负极界面修饰。其他电池技术主要包括设计具有高离子/电子导电基体的复合锂硫正极,以及通过电解液添加剂来抑制多硫化物“穿梭效应”。测试技术方面涵盖了对Li金属的沉积、硅负极的SEI、复合正极的微结构和界面反应等问题的观测和分析。理论模拟工作涉及固态电池中固体电解质及其与电极界面的稳定性。界面问题侧重于关注固体电解质和Li金属负极界面副反应和Li枝晶生长。

关键词: 锂电池, 正极材料, 负极材料, 固体电解质, 电池技术

Abstract:

This bimonthly review paper highlights 100 recent published papers on lithium batteries. We searched the Web of Science and found 3015 papers online from Apr. 1, 2021 to May 31, 2021. 100 of them were selected to be highlighted. Nickel rich ternary layered oxides and the high-voltage spinel materials are still under extensive investigations for the influences of preparation of precursors, doping and interface modifications on their electrochemical performances. The researches of silicon-based composite anode materials focus mainly on the design of electrode structure, while the researches of lithium metal anode focus on electrolyte additives and further to regulate the growth of SEI and inhibit the formation of lithium dendrites. Solid state electrolytes including oxide, sulfide, polymer and composite materials have been studied. Meanwhile, large efforts are still devoted to liquid electrolytes for the additives to improve the performances of graphite and silicon anodes, the high-voltage spinel and LiCoO2 and ternary layered structure cathode materials. For solid-state batteries, the design and preparation of composite cathode, surface modification of active materials, and lithium metal/solid electrolyte interface are the main topics. To suppress the "shuttle effect" of Li-S battery, composite sulfur cathode with high ion/electronic conductive matrix and electrolyte additives are studied. The characterization work include the investigations on Li deposition, SEI of Si-based anode, microstructures and interfacial reaction of composite cathodes. Furthermore, there are a few theoretical calculation papers related to the stability of solid electrolyte, the interfaces of solid state electrolyte/Li and Li metal deposition.

Key words: lithium batteries, cathode material, anode material, solid state electrolyte, battery technology

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