Electrochemical characterization of hollow urchin-like MnO2 as high-performance cathode for aqueous zinc ion batteries
文献类型：期刊论文
| 作者 | Wu, J; Chi, XW; Liu, YZ; Yang, JH; Liu, Y |
| 刊名 | JOURNAL OF ELECTROANALYTICAL CHEMISTRY
 |
| 出版日期 | 2020-08-15 |
| ISSN号 | 1572-6657 |
| DOI | 10.1016/j.jelechem.2020.114242 |
| 文献子类 | Article |
| 英文摘要 | Aqueous zinc-ion batteries (AZIBs) based on MnO2 cathode and Zn anode has attracted an increased attention for energy storage for their low cost, high safety and environmental friendliness. However, the essentially poor conductivity and unstable structure change of MnO2 cathode during electrochemical reaction usually lead to low discharge capacity and rapid fading for AZIBs. To alleviate these problems, a hollow urchin-like MnO2 was synthesized by a modified one step hydrothermal method. The as-proposed unique morphology with large surface can effectively shorten the ion diffusion distance and alleviate the collapse of the structure. The urchin-like MnO2 cathode shows a high reversible specific capacity of 324.9 mAh g(-1) at 0.1 A g(-1) (0.32C). Meanwhile, a long-term stability up to 5000 cycles with a retained capacity of 124 mAh g(-1) at a high current density of 1.5 A g-1 (5C) is obtained, which is obviously superior to a common spherical MnO2. Ex-situ analysis reveals a H+ and Zn2+ co-insertion reaction mechanism for the asobtained cathode. The remarkably electrochemical performance suggests the hollow urchin-like MnO2 a promising cathode for AZIBs. |
| WOS关键词 | HIGH-CAPACITY ; CHEMISTRY |
| WOS研究方向 | Chemistry ; Electrochemistry |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27827]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wu, J,Chi, XW,Liu, YZ,et al. Electrochemical characterization of hollow urchin-like MnO2 as high-performance cathode for aqueous zinc ion batteries[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2020. |
| APA | Wu, J,Chi, XW,Liu, YZ,Yang, JH,&Liu, Y.(2020).Electrochemical characterization of hollow urchin-like MnO2 as high-performance cathode for aqueous zinc ion batteries.JOURNAL OF ELECTROANALYTICAL CHEMISTRY. |
| MLA | Wu, J,et al."Electrochemical characterization of hollow urchin-like MnO2 as high-performance cathode for aqueous zinc ion batteries".JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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