摘要
对以价格低廉的三元材料(LiNixCoyMn1-x-yO2)替代锂离子电池中正极材料的问题进行研究.在LiCoO2中物理掺杂三元材料,并研究了三元材料和LiCoO2两种活性物的不同配比、不同厂家材料、不同极片长度对电池电化学性能和安全性能的影响.结果表明其中三元材料A与LiCoO2配比为4∶6的长极片工艺方案能达到预期目的,即该方案中电池的倍率性能、循环性能、高温储存性能、安全性能等都能达到国家标准,且成本大大降低.
This paper conducted a study of the substitution of inexpensive LiNixCoyM1-x-yO2 for the positive material in lithium ion battery. LiNixCoyMn1-x-yO2 was physically blended into LiCoOe according to different proportions. The effects, of the proportions, the different brands of material and the length of dissimilar pole slice, upon the electrochemistry and safe function of the battery were systematically analyzed. Results show that one of the projects made in the study can reach the anticipated goal. It was done by using the long pole slice combining LiNi,CoyMn1-x-yO2 A and LiCoO2 to the ratio of 4 ： 6. The anticipated goat is to fulfill the various functions of the battery and also to reduce its cost. Its discharge capacity, circulation function, high temperature store function and safe function can all reach the national standards.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2008年第6期168-171,共4页
Journal of Central South University of Forestry & Technology
基金
中南林业科技大学青年科学研究基金资助(2008054B)
关键词
化学工业
锂离子电池
正极材料
工艺
性能
chemical industry
lithium ion battery
polymer
cathode material
function
test
