Institutional Repository of Chinese Acad Sci, High Field Magnet Lab,Hefei 230031, Anhui, Peoples R China
| Preparation of bi-component ZnO/ZnCo2O4 nanocomposites with improved electrochemical performance as anode materials for lithium-ion batteries | |
Xu, Junmin ; He, Lei; Wang, Yongjian; Zhang, Changjin1; Zhang, Yuheng
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| 2016-02-10 | |
| 发表期刊 | ELECTROCHIMICA ACTA
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| 摘要 | The bi-component ZnO/ZnCo2O4 nanocomposites are prepared via a facile and scalable synthesis method by controlling the ratio of Zn to Co in the synthesis stage. The ZnO/ZnCo2O4 nanocomposites built from the interconnecting porous nanosheets possess loose porous nanostructures with abundant open space and electroactive surface sites. When evaluated as an anode material for lithium ion batteries, the ZnO/ZnCo2O4 nanocomposite electrode exhibits high capacity, good cycling stability (1086 mAh g (1) at 100 mA g (1) after 80 cycles and 847 mAh g (1) at 500 mA g (1) after 200 cycles), and excellent rate capability (similar to 538 mAh g (1) at 3200 mA g (1)), which is superior to most of the previously-reported ZnO-based or ZnCo2O4-based electrode materials. The superior electrochemical performances of the ZnO/ZnCo2O4 nanocomposites are attributed to the loose porous structure, which can buffer the volume expansion and increase the contact area between the electrode and electrolyte. Moreover, a strong synergistic effect between the Zn and Co occurs during the lithiation/delithiation process, where the Zn and Co are acting as mutually beneficial matrix ions to effectively alleviate the large mechanical stress caused by the severe volume change, and thus bring about high and stable capacity. (C) 2016 Elsevier Ltd. All rights reserved. |
| 文章类型 | Article |
| 关键词 | Zno/znco2o4 Nanocomposites Anodes Lithium-ion Batteries |
| WOS标题词 | Science & Technology ; Physical Sciences |
| DOI | 10.1016/j.electacta.2016.01.023 |
| 关键词[WOS] | FACILE FABRICATION ; ZNCO2O4 ; ELECTRODE ; NANOSHEETS ; COMPOSITE ; MICROSPHERES ; CAPACITY ; STORAGE ; NANOTUBES ; LIFE |
| 收录类别 | SCI |
| 语种 | 英语 |
| 项目资助者 | National Natural Science Foundation of China(11174290 ; National Natural Science Foundation of China(11174290 ; National Natural Science Foundation of China(11174290 ; National Natural Science Foundation of China(11174290 ; National Natural Science Foundation of China(11174290 ; National Natural Science Foundation of China(11174290 ; National Natural Science Foundation of China(11174290 ; National Natural Science Foundation of China(11174290 ; Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences(2015SRG-HSC025) ; Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences(2015SRG-HSC025) ; Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences(2015SRG-HSC025) ; Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences(2015SRG-HSC025) ; Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences(2015SRG-HSC025) ; Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences(2015SRG-HSC025) ; Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences(2015SRG-HSC025) ; Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences(2015SRG-HSC025) ; U123214 ; U123214 ; U123214 ; U123214 ; U123214 ; U123214 ; U123214 ; U123214 ; U1532267) ; U1532267) ; U1532267) ; U1532267) ; U1532267) ; U1532267) ; U1532267) ; U1532267) |
| WOS研究方向 | Electrochemistry |
| WOS类目 | Electrochemistry |
| WOS记录号 | WOS:000371143200049 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/22321 |
| 专题 | 中科院强磁场科学中心 |
| 作者单位 | 1.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Junmin,He, Lei,Wang, Yongjian,et al. Preparation of bi-component ZnO/ZnCo2O4 nanocomposites with improved electrochemical performance as anode materials for lithium-ion batteries[J]. ELECTROCHIMICA ACTA,2016,191(无):417-425. |
| APA | Xu, Junmin,He, Lei,Wang, Yongjian,Zhang, Changjin,&Zhang, Yuheng.(2016).Preparation of bi-component ZnO/ZnCo2O4 nanocomposites with improved electrochemical performance as anode materials for lithium-ion batteries.ELECTROCHIMICA ACTA,191(无),417-425. |
| MLA | Xu, Junmin,et al."Preparation of bi-component ZnO/ZnCo2O4 nanocomposites with improved electrochemical performance as anode materials for lithium-ion batteries".ELECTROCHIMICA ACTA 191.无(2016):417-425. |
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