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丰富的基阴极的近期进展,用于高能量密度的离子电池

Hexiang Chen¹, Chunwen Sun¹

¹School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, P. R. China. csun@cumtb.edu.cn.

Chemical communications (Cambridge, England)

|June 28, 2023

概括

富氧化 (LRMO) 对高能电池具有前景,但存在性能问题. 本综述详细介绍了用于实际应用的先进修改策略,以克服这些挑战.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
储能储能储能储能储能储能

背景情况:

离子电池 (LIB) 在能量密度和安全性方面面临限制.
富氧化 (LRMO) 具有高容量和低成本,但其稳定性和效率较差.

研究的目的:

审查LRMO阴极材料的最新进展.
探索各种修改策略以提高LRMO性能.
确定LRMO发展的未来研究方向.

主要方法:

关于LRMO研究的综合文献综述.
分析晶体结构,反应机制和性能问题.
修改策略的分类和讨论.

主要成果:

确定了关键挑战:电压/容量色,低速率能力,初始库伦比效率低.
详细介绍了各种修改技术:表面修改,兴奋剂,形态控制,粘合剂/电解质添加剂和整合策略.
突出新的方法:颗粒边界涂层,梯度设计,单晶,离子交换,固态电池和稳定.

结论:

在修改LRMO材料方面取得了重大进展.
需要进一步的研究,以解决广泛应用的剩余挑战.
未来的工作应该专注于先进的策略和理解基本机制.

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