电源技术2017，Vol.41Issue(11)：1516-1519,4.
水热辅助法制备富锂材料Li1.2Co0.13Ni0.13Mn0.54O2及性能表征
Preparation of Li1.2Co0.13Ni0.13Mn0.54O2 Li-rich material synthesized by hydrothermal-assisted method and its properties
摘要
Abstract
Li-rich manganese-based cathode material was synthesized by a hydrothermal assisted oxalate co-precipitation method using LiAc and Li2CO3 as lithium source,respectively.The structure,morphology and electrochemical performance of both synthesized materials were investigated by X-ray diffraction (XRD),scanning electron microscopy (SEM),electrochemical impedance spectroscopy (EIS) as well as galvanostatic charging and discharging test.The research results show that the sample prepared using LiAc can exhibit a reversible specific capacity of 265 mAh/g at a current density of 20 mA/g between 2.0 and 4.8 V,with a coulombic efficiency of 79.3％.In contrast,the sample prepared with Li2CO3 has a superior cyclic performance,retaining discharged specific capacities of 192 and 183 rnAh/g after 50 charge-discharge cycles under 0.5C and 1C.关键词
Li1.2Co0.13Ni0.13Mn0.54O2/富锂/正极材料/共沉淀/水热辅助Key words
Li1.2Co0.13Ni0.13Mn0.54O2/Li-rich/cathode material/co-precipitation/hydrothermal-assist分类
信息技术与安全科学引用本文复制引用
梁建林,李爱菊,邹丽娅,罗嘉文,张婷..水热辅助法制备富锂材料Li1.2Co0.13Ni0.13Mn0.54O2及性能表征[J].电源技术,2017,41(11):1516-1519,4.基金项目
国家自然科学基金(21203068) （21203068）
教育部博导类项目(20134407110006) （20134407110006）
