电源技术2018，Vol.42Issue(3)：321-323,332,4.
B掺杂对Li2MnSiO4电化学性能的影响
Effects of B doping on electrochemical performance of Li2MnSiO4
摘要
Abstract
Li2+xMnBxSi1-xO4 cathode materials were successfully synthesized by citric acid sol-gel method.The structure,morphology and electrochemical performance of the materials were characterized by XRD,SEM and electrochemical performance tests.The results show that the B element has entered into the lattice of the Li2MnSiO4 material successfully,and the cell volume of B-doped Li2MnSiO4 material increases.The particle size distribution become more uniform,and the particle size is about 50-100 nm.The study shows that when the doping amount of B is 6％ (molar fraction),the first discharge specific capacity of the material is 164.2 mAh/g at 0.1 C and its cycling performance is good,while the discharge specific capacity of pure phase Li2MnSiO4 material at the same condition is only 119.2 mAh/g.关键词
锂离子电池/正极材料/硅酸锰锂/B掺杂Key words
lithium-ion battery/cathode materials/Li2MnSiO4/B-doping分类
信息技术与安全科学引用本文复制引用
吴婷婷,刘婧雅,李永虎,赖春艳..B掺杂对Li2MnSiO4电化学性能的影响[J].电源技术,2018,42(3):321-323,332,4.基金项目
国家自然科学基金(51402187) （51402187）
浙江省科技厅重大科技专项(2014C01095) （2014C01095）
