锂离子电池正极材料Li[Ni_(1/3)Mn_(1/3)Co_(1/3)]O_2的制备与显微结构研究  

Synthesis and microstructure characterization of Li[Ni_(1/3)Mn_(1/3)Co_(1/3)]O_2 for lithium ion batteries cathode

作　　者：林清云 关文浩[1] 孟杰[1] 吴诗嫣 裴静远 陈涛[1] 曾跃武[1] 魏晓[1] 李吉学[1] 张泽[1] 

机构地区：[1]浙江大学电子显微镜中心硅材料国家重点实验室材料科学与工程学院,浙江杭州310027

出　　处：《电子显微学报》2018年第1期8-14,共7页Journal of Chinese Electron Microscopy Society

基　　金：国家自然科学基金资助项目(Nos.11234011;11327901;51102208);中央高校基本科研业务专项资金资助(Nos.2014QNA4008;2017QNA4011)

摘　　要：本文通过正交实验探索了影响Li[Ni_(1/3)Mn_(1/3)Co_(1/3)]O_2材料显微结构和性能的实验因素;利用扫描电子显微镜(SEM)和透射电子显微镜(TEM)对所合成样品的微观形貌和显微结构进行表征。结果表明通过改进制备条件,可以合成颗粒尺寸细小、结构完整、结晶性好的Li[Ni_(1/3)Mn_(1/3)Co_(1/3)]O_2材料,这有助于改善其电化学性能。In this work,an orthogonal experiment with four factors and three levels were conducted to study the effect of preparation conditions on the microstructure and electrochemical performance of Li[Ni1/3Mn1/3Co1/3]O2 （ NMC）. The analysis suggests that calcination temperature is the main factor affects the specific capacity of NMC. The morphology and microstructure of the NMC were investigated by scanning electron microscopy（ SEM） and transmission electron microscopy（ TEM）. By improving the equipment condition based on the orthogonal analysis,NMC with small particle sizes,complete layered structure and excellent crystallinity which would contribute positively to the electrochemical performance can be prepared.

关 键 词：Li[Ni1/3Mn1/3Co1/3]O2 微观形貌 显微结构 电化学性能 正交实验 

分 类 号：TM912[电气工程—电力电子与电力传动] TG115.215.3[金属学及工艺—物理冶金]