Low self-discharge all-solid-state electrochromic asymmetric supercapacitors at wide temperature toward efficient energy storage
文献类型：期刊论文
| 作者 | Liu, Lei2; Liu, Chen3; Wang, Mengying4; Li, Bin5; Wang, Ke1; Fan, Xiangqian2; Li, Ning2; Wang, Huiqi2; Hu, Shengliang2; Diao, Xungang4 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2023-01-15 |
| 卷号 | 456页码:11 |
| 关键词 | Electrochromic Asymmetric supercapacitors All-solid-state Self-discharge Environmental compatibility |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2022.141022 |
| 通讯作者 | Liu, Lei(liulei91@nuc.edu.cn) ; Diao, Xungang(diaoxg@buaa.edu.cn) |
| 英文摘要 | Electrochromic asymmetric supercapacitors (EASs) have attracted tremendous attention in recent years because of their potential for next-generation civilian portable and intelligent electronics. However, obtaining all -solid-state EASs with low self-discharge rates and outstanding environmental compatibility remains a crucial chal-lenge. Herein, a high-performance all-solid-state EAS was fabricated based on MnO2 positive electrochromic electrode and WO3 negative electrochromic electrode. The obtained EAS exhibits high power/energy density (991.2 W kg -1/117 Wh kg- 1 and 15840 W kg -1/44.3 Wh kg -1), superior electrochemical cycle-life (remains 98.4% of its initial capacity after 2000 continuous cycles even at 60 degrees C). Significantly, the fabricated EAS can still maintain a stable and reversible color change even in harsh environments where operating temperatures are constantly changing from-20 degrees C to 60 degrees C. In addition, the underlying self-discharge process and mechanisms of EASs were comprehensively demonstrated at various temperatures. The diffusion-controlled mechanism domi-nates in the initial discharging process at high working temperatures (such as 60 degrees C), while both charge redis-tribution and diffusion-controlled mechanism contribute equally at lower operating temperatures (such as-20 degrees C). Impressively, the EAS presents a small voltage loss (all below 18%) within 10 h when operated at extreme temperatures. This work can enlighten and promote the development of low self-discharge electro-chromic devices at widely operating temperatures for efficient energy storage. |
| 资助项目 | National Natural Science Foundation of China ; Fundamental Research Program of Shanxi Province ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi ; [62205311] ; [52073007] ; [61875005] ; [52011540389] ; [22105181] ; [202103021223177] ; [20210302123029] ; [2020L0279] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000909576900001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Program of Shanxi Province ; Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi |
| 源URL | [http://ir.imr.ac.cn/handle/321006/175522]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Lei; Diao, Xungang |
| 作者单位 | 1.Sci & Technol Electroopt Informat Secur Control La, Tianjin 300308, Peoples R China 2.North Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Beihang Univ, Sch Energy & Power Engn, Beijing 100191, Peoples R China 5.Shanghai Inst Space Power Sources, Res Ctr Photovolta, Shanghai 200245, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Lei,Liu, Chen,Wang, Mengying,et al. Low self-discharge all-solid-state electrochromic asymmetric supercapacitors at wide temperature toward efficient energy storage[J]. CHEMICAL ENGINEERING JOURNAL,2023,456:11. |
| APA | Liu, Lei.,Liu, Chen.,Wang, Mengying.,Li, Bin.,Wang, Ke.,...&Diao, Xungang.(2023).Low self-discharge all-solid-state electrochromic asymmetric supercapacitors at wide temperature toward efficient energy storage.CHEMICAL ENGINEERING JOURNAL,456,11. |
| MLA | Liu, Lei,et al."Low self-discharge all-solid-state electrochromic asymmetric supercapacitors at wide temperature toward efficient energy storage".CHEMICAL ENGINEERING JOURNAL 456(2023):11. |
入库方式： OAI收割
来源：金属研究所
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