锂离子电池电解液导电添加剂的研究进展  

Research progress in conductive additives of electrolyte for Li-ion battery

作　　者：方黎锋 FANG Li-feng(Zhejiang Kente Catalysts Technologies Co.,Ltd.,Hangzhou,Zhejiang 311200,China)

机构地区：[1]浙江肯特催化材料科技有限公司,浙江杭州311200

出　　处：《电池》2023年第4期462-465,共4页Battery Bimonthly

摘　　要：电解液的Li^(+)传导性对锂离子电池的充放电性能至关重要。综述电解液导电添加剂的研究进展,介绍优势品种的工作原理。15-冠醚-5可通过与Li^(+)配位促进电离,从而降低电解液黏度、提高电导率;表面酸性的二氧化硅(SiO_(2))可通过吸附阴离子促进电离;介孔SiO_(2)可作为电解液骨架,制备不需要隔膜且兼顾导电性和安全性的理想电解质。对电解液导电添加剂的应用进行展望,未来需要加大对软物质电解质的研究力度。The Li~+conductivity of the electrolyte was crucial to the charge-discharge performance of Li-ion battery.The research progress in conductive additives for electrolytes was reviewed,the working principle of dominant varieties was introduced.15-crown-5 could promote ionization by coordinating with Li~+,thereby reducing electrolyte viscosity and improving conductivity;surface acidic silicon oxide(SiO_2) could promote ionization by adsorbing anions.Mesoporous silicon oxide could be used as electrolyte skeleton to prepare ideal electrolyte which didn′t need separators and was compatible with conductivity and safety.The application of electrolyte conductive additives was prospected.In the future,it was necessary to increase the research on soft matter electrolytes.

关 键 词：电解液 导电添加剂 15-冠醚-5 二氧化硅(SiO_(2)) 软物质电解质 

分 类 号：TM912.9[电气工程—电力电子与电力传动]