摘要
尖晶石锰酸锂(LiMn_(2)O_(4))的表面碳修饰不但可抑制锰溶解,还能提高电子电导率,从而提高倍率性能、延长循环寿命。针对碳修饰的LiMn_(2)O_(4)(LiMn_(2)O_(4)/C)作为锂离子电池正极材料的研究进行综述,分析无定形碳、碳纳米管(CNT)和石墨烯等碳修饰对LiMn_(2)O_(4)电化学性能的影响;讨论碳修饰方式的缺陷;指出解决现存问题的方向。
Carbon modification on the surface of spinel lithium manganate(LiMn_(2)O_(4))could not only inhibit the dissolution of manganese,but also improve the electronic conductivity,so as to improve the rate capability and prolong the cycle life.The study on carbon-modified LiMn_(2)O_(4)(LiMn_(2)O_(4)/C)as cathode materials for Li-ion battery was reviewed.The effects of carbon modification such as amorphous carbon,carbon nanotubes(CNT)and graphene on the electrochemical performance of LiMn_(2)O_(4) were analyzed,the defects of carbon modification methods were discussed,as well as the direction to solve the existing problems were proposed.
作者
何佳怡
庄树新
王志恒
HE Jia-yi;ZHUANG Shu-xin;WANG Zhi-heng(Key Laboratory of Functional Materials and Applications of Fujian Province,School of Materials Science and Engineering,Xiamen University of Technology,Xiamen,Fujian 361024,China)
出处
《电池》
CAS
北大核心
2022年第5期588-591,共4页
Battery Bimonthly
基金
福建省科技厅引导性重点项目(2021H0028)
福建省功能材料及应用重点实验室开放课题(fma2020010)。
