镍钴锰三元材料的结构及改性研究进展  

Research progress of structure and modification of Li(NixCoyMnz)O2 ternary materials

作　　者：倪闯将 刘亚飞 陈彦彬 张学全 NI Chuang-jiang;LIU Ya-fei;CHEN Yan-bin;ZHANG Xue-quan(Beijing Easpring Material Technology Co.,Ltd.,Beijing 100160,China;BGRIMM Technology Group,Beijing 100160,China)

机构地区：[1]北京当升材料科技股份有限公司,北京100160 [2]矿冶科技集团有限公司,北京100160

出　　处：《电源技术》2021年第1期123-126,共4页Chinese Journal of Power Sources

摘　　要：镍钴锰三元材料Li(NixCoyMnz)O2(NCM)作为锂离子电池用正极材料,兼具了较高的可逆容量、优良的热稳定性、低成本等优点,成为笔记本电脑、电动工具、新能源汽车、储能等领域最具前景的锂离子电池正极材料之一。在三元正极材料的结构方面做了介绍,概括了Ni-Co-Mn比例对正极材料热稳定性、放电比容量和容量保持率的影响,并分析了掺杂、包覆与梯度材料的改善作用。最后对三元正极材料的改性、应用及发展前景进行了评价和展望。As a cathode material for lithium-ion batteries,the ternary material Li(NixCoyMnz)O2(NCM)having the advantages of high reversible capacity,excellent thermal stability,low cost and so on,has become one of the most promising cathode materials for lithium-ion batteries in laptop,power tool,electric vehicle,energy storage and other fields.The structure of NCM cathode materials was reviewed,and the influence of Ni-Co-Mn ratio on thermal stability,discharge specific capacity and capacity retention of cathode materials was summarized.The modification in doping,coating and gradient materials was analyzed.The modification,application and development of ternary cathode materials were evaluated and prospected.

关 键 词：锂离子电池 镍钴锰三元材料 结构 改性 

分 类 号：TM912[电气工程—电力电子与电力传动]