锂离子电池安全性添加剂*

作为锂离子电池的一个重要组成部分，电解质对电池的性能有重要影响。有机电解液功能添加剂是近年来锂离子电池研究中的一个热点。本文介绍了锂离子电池有机电解液阻燃剂和过充电保护剂改善电池安全性的作用机理、特点以及它们的研究应用现状，并对各种添加剂的优缺点作了简要评价。

Safety-Enhancing Additives for Lithium Ion Batteries

Electrolyte plays important roles on the performances of lithium ion batteries (LIB). Much attention has been attracted to the investigation of functional additives to the organic electrolytes in recent years. This paper is intended to review the recent progresses on the study of safety-enhancing additives including flame retardants to the commercially avaliable carbonates-based electrolytes and overcharge protection(such as redox shuttles, potential-sensitive and temperature-sensitive) additives to the electrode as well as to the electrolytes for lithium ion batteries. The research status and the perspectives of each type of the additives are commented after an introduction to their operational mechanisms and electrochemical performances. Contents
1 Introduction
2 Flame-retardant additives
2.1 Flame-retardant mechanism
2.2 Flame-retardant additives
3 Overcharge protection additives
3.1 Redox shuttle additives
3.2 Potential-sensitive additives
3.3 Temperature-sensitive additives
4 Conclusions