摘要
在聚合物锂离子蓄电池正极材料常规制备工艺的基础上开发了球磨干混-旋转振动高温固相合成新工艺,合成了正极改性材料LiNi0.7Co0.3O2。研究了原材料、煅烧条件等工艺过程参数对合成产物结构、微观形貌及充放电性能的影响。通过本工艺制得的LiNi0.7Co0.3O2颗粒均匀细致,平均粒径约为10μm,放电初始比容量达177mAh/g。
A new process “grinding-dry-mixing”-“rolling-vibrating high-temperature solid reaction synthesis” was developed, on the basis of routine preparation methods of cathode matcrial of polymer lithium-ion battery, and modified cathode material LiNi0.7Co0.3O2 was prepared. The important parameters in preparation proccsscs, such as raw materials and calcination conditions were studied, which influence the material structure, morphology and electrical characteristics.LiNi0.7Co0.3O2 obtained by this process consists of even and particular granule that has a diameter of 10μm, and its gravimetric specific capacity is up to 177 mAh/g.
出处
《电源技术》
CAS
CSCD
北大核心
2005年第10期637-640,共4页
Chinese Journal of Power Sources
