层状富锂材料研究进展  

Recent development of lithium-rich layered oxides

作　　者：郭慧[1] GUO Hui(Xiamen Ocean Vocational College,Xiamen Fujian 361101,China)

机构地区：[1]厦门海洋职业技术学院机电工程系,福建厦门361101

出　　处：《电源技术》2018年第11期1736-1739,共4页Chinese Journal of Power Sources

基　　金：福建省中青年教师教育科研项目(JAT171025)

摘　　要：随着电动汽车续航里程要求的增高,下一代锂离子电池的一项关键指标是高能量密度。层状富锂正极材料因其容量较高,受到了广泛关注。然而层状富锂材料本身存在首次不可逆容量大、循环过程中电压衰减和倍率性能差等问题尚未解决,所以现阶段无法满足应用要求。从结构机理、存在问题、性能改进方面综述了层状富锂材料的研究现状,以期对后续研究思路和方向提供借鉴。As the requirement for longer traveled distance of electric vehicles, a key factor of the next generation oflithium-ion batteries is high energy density. Lithium-rich layered oxides have high energy density and are expectedto be used in the next generation lithium-ion batteries. However, the initial irreversible capacity, voltage decay andpoor rate capability of lithium-rich layered oxides can＇t meet the application requirements. The research oflithium-rich layered oxides was reviewed from the structure and mechanism, existing problems and performanceimprovement, so as to provide some reference for future research.

关 键 词：正极材料 层状富锂 首次不可逆容量 电压衰减 

分 类 号：TM912.9[电气工程—电力电子与电力传动]