锂离子电池凝胶电解质研究进展

锂离子电池（LIB）是日常生活中最常见的便携式储能设备。然而,传统的锂离子电池多使用液态电解质（LE）,存在易泄漏、易燃易爆且有毒等危险,其安全性日益受到关注。与LE相比,凝胶聚合物电解质（GPE）安全性更好且其电化学性能最接近LE,成为近年来电解质方面的研究重点。本文综述了近年来国内外GPE在LIB方面的研究进展,总结了传统聚合物基质采用交联、共聚或共混改性以提高电解质电化学性能及改善安全性方面的研究,并介绍了可再生、可降解的高分子材料在LIB方面的应用,旨在为研究功能性更强的GPE及高性能电极材料的研究提供参考。

Research Advances on Gel Electrolytes for Lithium Ion Batteries

Lithium ion battery (LIB) has become energy storage devices everywhere in daily life. However, their safety has been receiving increasing attention due to the issue of leakage, flammability and toxicity of liquid electrolyte (LE). Compared with LE, gel polymer electrolytes (GPE) have better safety and their electrochemical performance is closest to LE, which has become the focus of electrolyte research in recent years. Herein, the research progress of GPE for LIB in recent years was overviewed; the cross-linking, copolymerization or blending modification on the base of traditional polymers was summarized to prepare polymer matrices with better electrochemical properties, which can effectively improve lithium dendrite, and obtain higher safety; the application progress of renewable and degradable polymer materials in LIB was introduced. This work may provide some reference for the research of multifunctional GPE and high-performance electrode materials.