摘要
富锂锰基正极材料因其能量密度高、成本低和环境友好等特点,成为最具有应用前景的锂离子电池正极材料之一。然而,富锂锰基材料严重的电压衰减成为其实现商业化的一大难点。本文从富锂锰基材料的晶体结构出发,总结了造成材料电压衰减的作用机理和影响因素,针对电压衰减提出了有效的改性策略,最后对富锂锰基正极材料未来的研究方向和发展作了展望。
Lithium-rich manganese based cathode material has become one of the most promising cathode materials for lithium-ion batteries due to its characteristics of high energy density,low cost and environmental friendly.However,the serious voltage attenuation of Li-rich manganese based materials has become the major difficulty for their commercialization.Based on the crystal structure of Li-rich materials,the mechanism and influencing factors causing voltage attenuation of materials are summarized,and effective modification strategies are proposed for alleviating the voltage attenuation.Finally,the future development and research direction of Li-rich cathode materials are prospected.
作者
蔡星鹏
李春雷
傅小兰
李世友
Cai Xingpeng;Li Chunlei;Fu Xiaolan;Li Shiyou(College of Petrochemical Technology,Lanzhou University of Technology/Gansu Key Laboratory of Low Carbon Energy and Chemical Engineering,Lanzhou,730050)
出处
《化学通报》
CAS
CSCD
北大核心
2022年第1期52-58,共7页
Chemistry
基金
甘肃省科技重大专项项目(18ZD2FA012)
甘肃省自然科学基金项目(20JR5RA469)资助。
关键词
锂离子电池
富锂锰基
正极材料
电压衰减
改性策略
Lithium-ion batteries
Lithium-rich manganese based
Anode material
Voltage attenuation
Modification method
