高温烧结法制备改性钴酸锂的研究

摘要

Based on the sintering method,LiCoO2 was doped and coated by different sintering processes.Through SEM,BET,TD and electrochemical property analysis,it's found that the doped and coated LiCoO2 under high temperature obtains the optimal electrochemical performance,the specific capacity is up to 171.9 mAh/g,the discharge platform is 50 min and the capacity decay is only 3.8％ after 100 cycles.%采用固相烧结法,在不同烧结工艺条件下对LiCoO2掺杂、包覆改性处理.采用SEM、比表面积、振实密度以及电性能分析,发现高温条件下掺杂、包覆的钴酸锂获得最优的电化学性能,比容量可达171.9 mAh/g,1 C3.6V放电平台为50 min,1 00周循环后容量衰减只有3.8％.