电化学2012，Vol.18Issue(1)：37-42,6.
锂离子电池MnO/TiN负极研究
Preparation and Characterization of MnO/TiN Anode for Lithium Ion Batteries
摘要
Abstract
Manganese titanate （MnTiO2） powder was prepared via a sol-gel method using manganese acetate and tetrabutyl titanate as raw materials, and citric acid as a chelating agent. Through high temperature nitridation of MnTiO3 powder in ammonia, the MnO/TiN composite was obtained. The phase structure, composition and morphology of the composites were characterized by XRD, SEM and EDS. The electrochemical properties of the com- posite electrodes were studied by performing cyclic voltammetry, galvanostatic charge and discharge, and electrochemical impedance spectroscopy tests. The MnO/TiN electrode delivered specific capacities of 394 mAh · g-1 and 146 mAh · g-1 at the current density of 100 mA · g- 1 and 1 A - g-1, respectively, and exhibited higher specific capacity and superior rate capability than MnO electrode,which can be ascribed to the presence of TiN in the composite offering an electron conducting network and suppressing the volume expansion of MnO efficiently during the charge and discharge processes.关键词
溶胶-凝胶法/锂离子电池/负极/导电网络Key words
sol-gel method/lithium ion batteries/anode/conducting network分类
信息技术与安全科学引用本文复制引用
许高洁,杨海燕,韩鹏献,张立学,张克军,张传健,范玉华,毕彩丰,崔光磊..锂离子电池MnO/TiN负极研究[J].电化学,2012,18(1):37-42,6.基金项目
973项目（No.MOST2011CB935700）、中科院“百人计划”、山东省杰出青年基金（No.BS2009NJ013）和国家自然科学基金项目（No.20971077）资助 （）
