期刊
CHEMISTRY-AN ASIAN JOURNAL
卷 11, 期 8, 页码 1205-1209出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201600067
关键词
anodes; Coulombic efficiency; lithium-ion batteries; nano; micro-structures; Si; C
资金
- National Basic Research Program of China [2012CB932900]
- National Natural Science Foundation of China [51225204, 21127901]
- Chinese Academy of Sciences [XDA09010000]
- CAS
One of the major challenges for designing high-capacity anode materials is to combine both Coulombic efficiency and cycling stability. Herein, nano/micro-structured Si/C composites are designed and synthesized to address this challenge by decreasing the specific surface area and improving the tap density of Si/C materials. An ultrahigh initial Coulombic efficiency of 91.2% could be achieved due to a proper particle size, low specific surface area, and optimized structure. The nano/micro-structured Si/C anodes exhibit excellent cycling stability with 96.5% capacity retention after 100 cycles under a current density of 0.2Ag(-1).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据