电源技术2012,Vol.36Issue(8):1225-1231,7.
锂离子电池正极材料LiFePO4改性的研究进展
Progress in modification of LiFePO4 cathode for Li-ion batteries
摘要
Abstract
The olivine-structured LiFePO4 is one of the most promising cathode materials of lithium ion batteries due to its excellent thermal stability, great cycle stability and environmental benignity, but its poor electronic conductivity (10-9 S/cm) and the low Li-ion diffusion (10-11 S/cm) severely influence the high-rated charge and discharge properties and low temperature performance. In addition, the lower theoretical density (3.6 g/cm3) also has an impact on the improvement of energy density. Here, according to the high-rate performance, low temperature performance and energy density of LiFePO4 for high power lithium-ion batteries, the influences of morphology controlling, conductive materials coating and metal ions doping on the electrochemical properties and energy density of LiFePO4 were summarized and discussed. The major goal was to highlight the recent development and challenges of LiFePO4 and to present the research direction in the future.关键词
LiFePO4/锂离子电池/倍率性能/低温性能/能量密度Key words
LiFePO4/ lithium-ion battery/ high-rated performance/ low temperature performance/ energy density分类
信息技术与安全科学引用本文复制引用
张仕玉,王传宝,王美玲,周飞..锂离子电池正极材料LiFePO4改性的研究进展[J].电源技术,2012,36(8):1225-1231,7.基金项目
江苏凯力克钴业股份有限公司合作项目(4015KFA11187) (4015KFA11187)