摘要
采用高温固相法合成锂离子电池用LiCoPO4/C复合正极材料.通过X射线衍射(XRD)和扫描电镜(SEM)对材料的微观结构和表面形貌进行分析.电化学测试结果表明,在0.1 C倍率下,LiCoPO4/C首次放电容量达到75 mAh.g-1,50次循环容量保持92%.
The LiCoPO4 /C composite cathode material was synthesized by high-temperature solid-state reaction.Micostructure and morphology of the samples were characterized by X-ray diffraction（XRD） and scanning electron microscopy（SEM）.The electrochemical tests showed that the initial discharge capacity of LiCoPO4/C reached 75 mAh·g^-1 and 92% capacity retention was obtained after 50 cycles at 0.1 C rate.
出处
《淮北师范大学学报（自然科学版）》
CAS
2011年第1期50-52,共3页
Journal of Huaibei Normal University：Natural Sciences
基金
安徽省高校青年教师资助计划项目(2007jql156)
安徽高校省级自然科学研究项目(KJ2009B250Z)
淮北师范大学青年科研项目(201132)
关键词
锂离子电池
磷酸钴锂
正极材料
高电压
lithium ion batteries
lithium cobalt phosphate
cathode material
high-voltage
