锂离子电池LiBOB电解质盐研究

LiBOB-Based Electrolyte for Lithium Batteries

本文介绍了可用于锂离子电池的新型锂盐———双乙二酸硼酸锂(LiBOB)的基本性质,包括结构组成、合成方法、物理化学性能及其与结构的关系。综述了近年来在LiBOB新型电解质锂盐研究与探索方面的新成果,重点评价了BOB-阴离子对于石墨负极和金属氧化物正极材料表面的电化学性能。讨论了这种盐在锂离子系统中杂质和安全性等问题,归纳了其优缺点,指出今后电解质锂盐的研究发展方向。

A new salt LiBOB （lithium bis（oxalato）borate） as the electrolyte solute for lithium ion battery and its configuration, preparation, physical and chemical properties, especially electrochemical properties are introduced in this paper. The preliminary results and recent finding on LiBOB-based electrolyte are summarized. Emphasis is placed on the electrochemistry of the BOB-anion on both graphite anode and metal-oxide-based cathode surfaces. Certain issues associated with the impurity and safety of the salt in lithium ion systems are also discussed. The advantages and disadvantages of LiBOB are generalized. Finally, the emphases and strategies for R＆D of electrolyte of improved performance in future are indicated.