电化学2013，Vol.19Issue(2)：169-173,5.
锂离子电池碳包覆锡负极性能研究
Properties of Carbon Coated Tin Negative Electrode for Lithium-Ion Battery
摘要
Abstract
Carbon coated tin powder was prepared by decomposing glucose applying a hydrothermal method, and was further used as the active material for negative electrode of lithium secondary battery. Charge-discharge tests show that the carbon coated tin electrode with the addition of 5% (by mass) acetylene black as a conductive agent could obtain an initial discharge capacity of 967 mAh · g-1 and a discharge capacity of 362 mAh · g-1 after 50 cycles, which is much higher than that of tin electrode (166 mAh · g-1 after 50 cycles). The coated carbon hinders the agglomeration of tin powder and reduces the irreversible capacity loss of tin. The addition of acetylene black could reduce the impedance between the electrode and the electrolyte, therefore, improve the transfer property of lithium ions and the electrons within the electrode, which contribute to the higher initial discharge capacity.关键词
锂离子电池/碳包覆/锡负极/循环性能Key words
lithium-ion battery/ carbon coating/ tin negative electrode/ cycle performance分类
信息技术与安全科学引用本文复制引用
刘贵昌,申晓晓,王立达..锂离子电池碳包覆锡负极性能研究[J].电化学,2013,19(2):169-173,5.
