阳极
材料科学
锂(药物)
兴奋剂
热液循环
复合材料
电流密度
电阻率和电导率
离子
电导率
化学工程
电极
化学
光电子学
电气工程
工程类
内分泌学
物理
物理化学
医学
有机化学
量子力学
作者
Xiang Xiao,Zexian Zhang,Kai Yang,Tao Mei,Di Yan,Xianbao Wang
标识
DOI:10.1016/j.jallcom.2020.157118
摘要
Abstract Transition metal sulfides are considered as a kind of promising anode for lithium ion batteries due to their high theoretical capacity, but their further development are still greatly hampered by their volume expansion and electrical conductivity problems. Here, hollow spindle Ni-doped Co9S8@ZnS composites are synthesized by a simple two-steps hydrothermal method. The unique hollow structure, multi-component synergistic effect as well as effective ion doping can improve the comprehensive performance. When the as-obtained composites are used for the lithium ion batteries, which exhibit an ultra-long cycle performance. The capacity of 585 mAh/g can be maintained at 0.1 A/g after a long cycling of 1000 cycles. Even when the current density is raised to 1 A/g, the composites exhibit a high reversible discharge capacity of 758 mAh/g after 500 cycles.
科研通智能强力驱动
Strongly Powered by AbleSci AI