摘要
Li(Ni1-x-yCoxMny)O2正极材料具有容量高、循环性能好及安全性能好等优点,是最具潜力的锂离子电池正极材料之一。但同时存在的电子电导率低、倍率性不理想、大电流下循环可逆性差等缺点,阻碍了材料的进一步发展。从Li(Ni1-x-yCoxMny)O2正极材料的倍率性能、循环性能、放电容量及热稳定性能等方面,重点讨论了掺杂改性和包覆改性对Li(Ni1-x-yCoxMny)O2正极材料电化学性能的影响。揭示了当前Li(Ni1-x-yCoxMny)O2正极材料的研究现状和亟待解决的问题,并对今后的发展方向进行了展望。
Li（Ni1-x-yCoxMny）O2 is one of the most promising cathode materials for lithium-ion batteries due to its high capacity,great cycle stability and safety.But its poor electronic conductivity,low rate capability and poor cycle abilities at high current hinder its development.In this paper,the influence of the doping and coating on the electrochemical performance of Li（Ni1-x-yCoxMny）O2 was studied,such as the rate capability,cycle abilities,discharge capacity and thermal stability.The major goal was to highlight the recent development and challenges of Li（Ni1-x-yCoxMny）O2 and to forecast the research direction in the future.
出处
《电源技术》
CAS
CSCD
北大核心
2013年第3期499-503,共5页
Chinese Journal of Power Sources
基金
南京航空航天大学基本科研业务费专项科研项目(NS2012068)
江苏凯力克钴业股份有限公司合作项目(4015-KFA11187)
