摘要
从改善锰酸锂材料的粒度分布出发,考察了粒度分布对锰酸锂产品压实密度的影响。实验结果表明,产品粒度D10为6.330μm、D50为11.431μm、D90为19.424μm、D90-D10=13.094μm,粒度分布比较集中时,产品的压实密度最高,达到了3.14g/cm3,对应的全电池1C初始放电容量为105.3 mAh/g,50次循环容量衰减为4.26%,能较好满足锂电厂的要求。
The effects of particle size distribution on compacted density of LMO material was researched in order to improve the size distribition of LMO. Results indicated that the material had the highest compacted density of 3.14 g/cm3 at a concentrated particle size distribution such as D10 =6. 330μm, D50 = 11. 431 μm, D90 = 19. 424 μm and D90 -D10 = 13. 094 μm. The full cell 1C made from the material had an initial discharge capacity of 105.3 mAh/g and capacity attenuation rate after 50 cycles of 4.26%. This material can meet with the requirements of a lithium battery plant.
出处
《矿冶工程》
CAS
CSCD
北大核心
2011年第5期94-96,共3页
Mining and Metallurgical Engineering
关键词
锂电池
二氧化锰
锰酸锂
粒度
压实密度
电性能
lithium battery
manganese dioxide
lithium manganate
particle size
compacted density
electrical property
