Inorganic Chemicals Industry ›› 2020, Vol. 52 ›› Issue (4): 18-22.doi: 10.11962/1006-4990.2019-0240

• Reviews and Special Topics • Previous Articles     Next Articles

Research progress of LiFePO4 cathode materials for Li-ion battery

Wang Jiatai,Zhao Duan,Ma Lianhua,Zhang Caihong()   

  1. College of Physics and Electronic Information Engineering,Qinghai Normal University,Xining 810000,China
  • Received:2019-10-17 Online:2020-04-10 Published:2020-04-22
  • Contact: Zhang Caihong E-mail:manvict@foxmail.com

Abstract:

LiFePO4 has the characteristics of high temperature stability,good cycle performance and environmental protection etc..It has become one of the cathode materials for lithium ion power batteries.However,due to the low electronic conductivity of LiFePO4 and the slow diffusion rate of lithium ions,the application of LiFePO4 in power battery industry is restricted. Therefore,it was summarized the improvement of LiFePO4 from three aspects:surface modification of LiFePO4 with carbon coated materials,doping LiFePO4,preparing submicron or nanometer LiFePO4 or the LiFePO4 with special morphology.The optimum method of improving LiFePO4 was analyzed and its development trend in the future was predicted.

Key words: Lithium ion battery, lithium iron phosphate, cathode material

CLC Number: