储能科学与技术 ›› 2021, Vol. 10 ›› Issue (6): 2411-2427.doi: 10.19799/j.cnki.2095-4239.2021.0550

• 热点点评 • 上一篇    下一篇

锂电池百篇论文点评(2021.8.12021.9.30

季洪祥(), 金周, 田孟羽, 武怿达, 詹元杰, 田丰, 闫勇, 岑官骏, 乔荣涵, 申晓宇, 朱璟, 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:2021-10-20 修回日期:2021-10-22 出版日期:2021-11-05 发布日期:2021-11-03
  • 作者简介:季洪祥(1997—),男,博士研究生,从事锂离子电池正极材料的研究,E-mail:sdujhx@163.com|黄学杰,研究员,研究方向为锂二次电池及关键材料,E-mail:xjhuang@jphy.ac.an
  • 基金资助:
    国家重点研发计划项目(2018YFB0104100)

Reviews of selected 100 recent papers for lithium batteries Aug. 1 2021 to Sept. 30 2021

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

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2021-10-20 Revised:2021-10-22 Online:2021-11-05 Published:2021-11-03

摘要:

该文是一篇近两个月的锂电池文献评述,以“lithium”和“battery”为关键词检索了Web of Science从2021年8月1日至2021年9月30日上线的锂电池研究论文,共有4209篇,选择其中100篇加以评论。正极材料的研究主要集中在对高镍三元、高电压钴酸锂和富锂锰基的表面改性和体相掺杂,以及其在长循环过程中或高电压下所发生的表面和体相的结构演变。金属锂负极的研究侧重于表面修饰,改变锂沉积方向。固态电解质的研究主要包括对硫化物固态电解质、氧化物固态电解质、聚合物固态电解质以及复合固态电解质的结构设计以及相关性能研究。电解液和添加剂的研究主要侧重于不同电解质和溶剂对各类电池材料体系适配,以及对新的功能性添加剂的探索。固态电池方向更多地集中于界面问题的研究。锂硫电池的研究重点是提高硫正极的活性,改善“穿梭”效应。测试表征方面偏重于对材料体相结构和电极/电解质界面等进行观测和分析,固态电池的界面问题研究是热点。理论计算对材料的表面氧活性、界面结构及锂离子的输运机制进行了探讨,而界面反应涉及到了SEI形成的分析。此外,集流体的改性以及电极预锂化研究工作也有多篇。

关键词: 锂电池, 正极材料, 负极材料, 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 4209 papers online from Aug. 1, 2021 to Sep. 30, 2021. 100 of them were selected to be highlighted. High-nickel ternary layered, high-voltage LCO layered and Li-rich Mn-rich layered cathode materials are still under extensive investigations of the influences of doping and interface modifications on their electrochemical performances and surface and bulk evolution of structures under prolong cycling. The researches of lithium metal anode mainly focus on the surface modification and alternation of direction of lithium deposition. Large efforts have been devoted to solid state electrolytes including sulfide and oxide solid electrolyte, polymer solid electrolyte and composite solid-state electrolytes. The research works on liquid electrolytes involves mainly matching various electrolytes and solvents with battery materials, and searching for new additives. For solid-state batteries, the studies mainly focus on interface and for lithium-sulfur batteries, the works are mainly on improving the activity of sulfur and mitigating the shuttling effect. The focuses of characterization techniques are on bulk structure of materials and electrode-electrolyte interface and the hot topics are characterization interfaces of solid-state batteries. Furthermore, there are theoretical works for the surface oxygen activity of materials, interface structures, lithium transportation mechanisms, with interface structures concerning SEI formation. There are also some papers on modification of current collectors and pre-lithiation of electrodes.

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

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