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ICCAS OpenIR  > 分子纳米结构与纳米技术实验室  > 期刊论文
题名: Nano/Micro-Structured Si/C Anodes with High Initial Coulombic Efficiency in Li-Ion Batteries
作者: Xu, Quan1, 2, 3; Li, Jin-Yi1, 2, 3; Yin, Ya-Xia1, 2; Kong, Yi-Ming1, 2; Guo, Yu-Guo1, 2, 3; Wan, Li-Jun1, 2
关键词: anodes ; Coulombic efficiency ; lithium-ion batteries ; nano ; micro-structures ; Si ; C
刊名: CHEMISTRY-AN ASIAN JOURNAL
发表日期: 2016-04-20
卷: 11, 期:8, 页:1205-1209
收录类别: SCI
英文摘要: 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).
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36101
Appears in Collections:分子纳米结构与纳米技术实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
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