碳材料包覆LiFePO4正极材料研究进展  

Research progress of carbon modified LiFePO4 anode material for Li-ion battery

作　　者：高媛 熊昆 朱冰峰 Gao Yuan;Xiong Kun;Zhu Bingfeng(School of Environment and Resources,Engineering Research Center for Waste Oil Recovery Technology and Equipment of Ministry of Education,Chongqing Technology and Business University,Chongqing 400067;Chongqing Occupational Disease Prevention Hospital,Chongqing 400067)

机构地区：[1]重庆工商大学环境与资源学院,废油资源化技术与装备教育部工程研究中心,重庆400067 [2]重庆市职业病防治院,重庆400067

出　　处：《化工新型材料》2019年第10期46-50,共5页New Chemical Materials

基　　金：国家自然科学基金青年项目（201606028）;重庆市教委科学技术研究项目（KJ1600630和KJQN201800819）;重庆市基础科学与前沿研究项目（cstc2017jcyjAX0209）;重庆工商大学高层次人才科研启动项目（1856022）

摘　　要：磷酸铁锂(LiFePO4)因其优异的性能,是极有发展潜力的锂离子动力电池用正极材料,但材料本身较低的电导率制约了其大规模应用。采用高导电碳材料对LiFePO4进行表面包覆可有效解决这一问题。综述了LiFePO4表面碳材料包覆改性研究进展,对碳材料包覆提升LiFePO4正极材料电化学性能的作用机制进行了阐述,并对LiFePO4正极材料的研究方向进行了展望。Olivine-structured lithium iron phosphate(LiFePO4)is considered as one of the most promising anode materials for lithium-ion high power batteries due to its excellent performance.However,the low conductivity of the material itself restricts its large-scale commercial application.Coating conductive carbon materials on particles surface can effectively solve this problem.Some recent researches progress on surface modification of LiFePO4 with different carbon-containing materials were summed,and explained the mechanisms of modification.Finally,an outlook for the research direction of LiFePO4 anode materials was given.

关 键 词：磷酸铁锂 包覆 碳材料 研究进展 

分 类 号：TM9[电气工程—电力电子与电力传动]