电源技术2011，Vol.35Issue(2)：173-175,3.
Li3V2(PO4)3掺锰的改性研究
Study on modification of Li3V2(P04)3 by Mn doping
摘要
Abstract
Li-ion battery cathode materials Li3+xMnxV2-x(PO4)3(x=0, 0.05, 0.10, 0.20) were synthesized by sol-gel method. The structure and morphology of samples were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The electrochemical behaviors were characterized by galvanostatic charge/discharge and cyclic voltammetry. The results show that the particle size of products are increased by adding small amount of Mn in Li3V2(PO4)3, but the crystal structure does not changed comparing with Li3V2(PO4)3 without Mn2+. The initial capacity of Li3+xMnxV2-x(PO4)3 decreases with the Mn content increasing, however, Li3.1Mn0.1V1.9(PO4)3 displays a more stable cycle performance than Li3V2(PO4)3, which indicates that a small mount of Mn doping can enhance its cycle stability.关键词
Li3V2(PO4)3/锰掺杂/溶胶凝胶法/电化学性能Key words
Li3V2(PO4)3/ Mn doping /sol-gel method/ electrochemical performance分类
信息技术与安全科学引用本文复制引用
刘云霞,朱先军,詹晖,周运鸿..Li3V2(PO4)3掺锰的改性研究[J].电源技术,2011,35(2):173-175,3.基金项目
国家自然科学基金项目(20873094) （20873094）
