硼基锂盐电解质在锂离子电池中的应用

摘要

Electrolyte is considered as one of the key materials to decide the performance of Li-ion batteries.Novel boron-based lithium salts have attracted people' s interests because of its varieties and environmental-friendly property. Lithium bis(oxalato) borate (LiBOB) , as one of boron-based lithium salts, is believed to be a candidate for commercial LiPF6 due to its good film-forming property and high thermal stability. In the paper, the new development of boron-based lithium salts is introduced, and LiBOB is also evaluated as lithium salt of electrolyte for Li-ion battery. The main influencing factors of LiBOB-based electrolyte are summarized. Especially, it has focused on the compatibility of LiBOB-based electrolyte with anode and metal oxide cathode. The application of LiBOBbased polymer electrolyte and LiBOB plastic chip electrolyte are introduced.%电解质材料是锂离子电池的关键材料之一,它直接影响电池的性能.新型硼酸锂盐由于种类繁多且环境友好而越来越引起人们的重视.双草酸硼酸锂(LiBOB)是一种新型的锂盐,具有很好的成膜性能和热稳定性,是一种很有潜力替代现有商品化锂盐LiPF6的物质.本文介绍了近期新型硼基锂盐的发展状况,归纳了LiBOB基电解质的研究概况,综述了影响LiBOB基电解质的因素,讨论了LiBOB与正负极材料的相容性,并对LiBOB基聚合物电解质和LiBOB塑晶电解质的应用进行了介绍.