锂电池正极材料LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2掺杂改性研究进展  

Research progress of doping modification of ion-doped cathode materials LiNi_(1/3)Co_(1/3)Mn_(1/3)O_2 for lithium ion batteries

作　　者：傅梦笔[1,2] 张利波[1,2] 张正富[1,3] 彭金辉[1,2] 

机构地区：[1]微波能工程应用及装备技术国家地方联合工程实验室,云南昆明650093 [2]昆明理工大学冶金与能源工程学院,云南昆明650093 [3]昆明理工大学材料科学与工程学院,云南昆明650093

出　　处：《电源技术》2014年第7期1370-1373,共4页Chinese Journal of Power Sources

基　　金：云南省中青年学术技术带头人后备人才培养项目(2012HB008)

摘　　要：层状结构的LiNi1/3Co1/3Mn1/3O2材料具有性能优异,环境污染小,毒性低以及高温稳定性好等优点,但其结构中阳离子混排现象以及结构的稳定性严重制约了其循环性能,其中一种很有效的方法就是在LiNi1/3Co1/3Mn1/3O2的晶格中掺杂各种离子,促进Li+扩散以及提高该材料的循环性能。综述了Mg、Al、Cr、F等阴阳离子掺杂以及阴阳离子复合掺杂对于LiNi1/3Co1/3Mn1/3O2材料在结构、形貌、放电性能等方面的影响,重点突出了元素掺杂手段对LiNi1/3Co1/3Mn1/3O2结构中Ni2+/Li+阳离子混排、结构稳定性、充放电效率以及循环性能方面的改善,并对此类掺杂改性手段进行总结及展望。LiNi1/3Co1/3Mn1/3O2 with layer structure has adventures of perfect performance, less pollution, less poison, good stability of high temperature and so on. But the cation mix phenomenon in its crystal structure and the structure stability restrains its cycle performance. One method is that doping vadous ions into the crystal lattice of LiNi1/3Co1/3Mn1/3O2 to improve the diffusion of Li＋and cycle performance of the material The effects of Mg2＋,Al3＋,Cr3＋,F- ions doping and composite doping on the structure, morphology and discharging performance of the material were reviewed. Furthermore, the improvement of Ni3＋/Li＋ cation mix, structural stability, charge and discharge efficiency and cycle performance of LiNi1/3Co1/3Mn1/3O2 by the method of element doping. This kind of doping modification was summarized and prospected.

关 键 词：锂离子电池 正极材料 LINI1 3Co1 3Mn1 3O2 掺杂改性 

分 类 号：TM912[电气工程—电力电子与电力传动]