Synthesis and characterization of LiFePO4 coating with aluminum doped zinc oxide
Aluminum doped zinc oxide (AZO),as an electrically conductive material,has been firstly applied to coat on the surface of olivine-type LiFePO4 synthesized by solid-state method in this paper.The charge-discharge test results show that the rate performance and low-temperature performance of LiFePO4 are greatly improved by the surface treatment.Even a 20C discharge specific capacities of 100.9 mAh g-1 has been obtained by the AZO-coated LiFePO4 at room temperature.At-20 0C,the discharge specific capacities testing at 0.2C for un-coated LiFePO4 and the coated one are 50.3mAh g-l,119.4 mAh g-l,respectively.It should be attributed to the electrically conductive AZO-coating which increases the electronic conductivity of LiFePO4,and then improve its specific capacity.Furthermore,the surface-coating measure increases the tap-density of LiFePO4,indicating that the AZO-LFP is a good candidate of cathode material for applying in lithium power batteries.
Lithium ion battery coating cathode material LiFePO4 aluminum doped zinc oxide
Tang Hao Tan Long Xu Jun
Department of Materials Science, Fudan University, Shanghai 201800, P.R.China Felie Li-ion Battery Manufacture Co., Ltd, 12 Xintai Road, Wuxi, Jiangsu 214028, P.R.China
国际会议
上海
英文
117-117
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）