电解质工程向高性能高 (Ni ≥80%) 的离子电池
Tiantian Dong1,2,3, Shenghang Zhang1,2,3, Zhongqin Ren1,2,3
1Qingdao Industrial Energy Storage Research Institute, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|December 3, 2023
概括
电解质工程是提高高离子电池 (LIB) 循环寿命和安全性的关键. 本综述详细介绍了高LIB中先进电解质设计的挑战和解决方案.
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:
- 高 (Ni ≥80%) 的离子电池 (LIB) 提供高的特定能量,但由于具有攻击性的化学物质,其周期寿命和安全性较差.
- 传统的LiPF6-碳酸盐电解质对于高Ni阴极是不够的,限制了商业应用.
研究的目的:
- 综合审查高Ni氧化物阴极和传统电解质的挑战.
- 详细阐述功能添加剂和高Ni LIBs的新型电解质的设计准则.
- 为设计更安全的电解质提供有关热失控机制的观点.
主要方法:
- 对高Ni LIBs的电解质工程策略的文献综述.
- 对LiPF6碳酸盐电解质的功能添加剂设计的分析.
- 对高压电阻和高安全性新型电解质的设计原则的系统阐述.
主要成果:
- 确定了高NiLIB和传统电解质的关键挑战.
- 功能添加剂设计准则和新型电解质原则的总结.
- 审查了与电解质设计相关的热逃跑机制.
结论:
- 电解质工程是一种强大的策略,可以提高高Ni LIBs的循环寿命和安全性.
- 本综述为电解质创新和高Ni LIBs的商业化提供了关键的见解.
- 电解质设计的进步对于打破LIBs的能量密度上限至关重要.
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