A novel strategy to prepare Ge@C/rGO hybrids as high-rate anode materials for lithium ion batteries
文献类型：期刊论文
| 作者 | Wang, Bangrun1,2; Wen, Zhaoyin1; Jin, Jun1; Hong, Xiaoheng1,3; Zhang, Sanpei1,2; Rui, Kun1,2 |
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2017-02-28 |
| 卷号 | 342页码:521-528 |
| 关键词 | Lithium-ion battery Germanium anode Double carbon protection Strong adhesion Dopamine |
| 英文摘要 | Germanium is considered as a promising anode material for lithium ion batteries (LIBs) due to its high capacity. However, owing to the huge volume variation during cycling, the batteries based on germanium anodes usually show poor cyclability and inferior rate capability. Herein, we demonstrated a novel strategy to uniformly anchor the core-shell structured germanium@carbon (Ge@C) on the reduced graphene oxide (rGO) nanosheets by the strong adhesion of dopamine. In the resulting Ge@C/rGO hybrid, the amorphous carbon layer and rGO nanosheets can effectively reduce the agglomeration of germanium and provide buffer matrix for the volume change in electrochemical lithium reactions. When used as anode materials for LIBs, Ge@C/rGO hybrids deliver a reversible capacity of 1074.4 mA h g(-1) at 2C after 600 cycles (with capacity retention of 96.5%) and high rate capability of 436 mA h g-1 at 20C after 200 cycles. The encouraging electrochemical performance clearly demonstrates that Ge@C/rGO hybrids could be a potential anode material with high capacity, excellent rate capability, and good cycling stability for LIBs. (C) 2016 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| 关键词[WOS] | HIGH-PERFORMANCE ANODE ; NITROGEN-DOPED CARBON ; HIGH-CAPACITY ANODES ; GRAPHENE NANOCOMPOSITES ; GERMANIUM ; ELECTRODES ; NANOPARTICLES ; SILICON ; COMPOSITES ; NANOSHEETS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000396186300059 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/23712]  |
| 专题 | 上海硅酸盐研究所_能量转换材料重点实验室_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Shanghaitech Univ, Shanghai 200031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Bangrun,Wen, Zhaoyin,Jin, Jun,et al. A novel strategy to prepare Ge@C/rGO hybrids as high-rate anode materials for lithium ion batteries[J]. JOURNAL OF POWER SOURCES,2017,342:521-528. |
| APA | Wang, Bangrun,Wen, Zhaoyin,Jin, Jun,Hong, Xiaoheng,Zhang, Sanpei,&Rui, Kun.(2017).A novel strategy to prepare Ge@C/rGO hybrids as high-rate anode materials for lithium ion batteries.JOURNAL OF POWER SOURCES,342,521-528. |
| MLA | Wang, Bangrun,et al."A novel strategy to prepare Ge@C/rGO hybrids as high-rate anode materials for lithium ion batteries".JOURNAL OF POWER SOURCES 342(2017):521-528. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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