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Anti-self-discharge ultrathin all-inorganic electrochromic asymmetric supercapacitors enabling intelligent and effective energy storage

文献类型：期刊论文

作者Liu, Lei5; Liu, Chen4; Wang, Meng-Ying3; Li, Bin2; Wang, Ke1; Fan, Xiang-Qian5; Wang, Li-Yong5; Wang, Hui-Qi5; Hu, Sheng-Liang5; Diao, Xun-Gang3
刊名RARE METALS
出版日期2023-05-29
页码15
关键词Anti-self-discharge Electrochromic Asymmetric supercapacitors (ASCs) All-inorganic Interface
ISSN号1001-0521
DOI10.1007/s12598-023-02324-x
通讯作者Liu, Lei(liulei91@nuc.edu.cn) ; Diao, Xun-Gang(diaoxg@buaa.edu.cn)
英文摘要Electrochromic asymmetric supercapacitors (EASs), incorporating electrochromic and energy storage into one platform, are extremely desirable for next-generation civilian portable and smart electronic devices. However, the crucial challenge of their fast self-discharge rate is often overlooked, although it plays an important role in practical application. Unfortunately, very limited research on EAS has focused on this critical problem. Here, an ultrathin all-inorganic EAS with excellent anti-self-discharge performance and superior electrochromic behavior is designed and manufactured by introducing a thin nano-functional layer at the electrode/electrolyte interface. The prototype all-inorganic EAS exhibited a wide working voltage of 2.2 V, a high energy/power density (81.2 mWh center dot cm(-3)/0.688 W center dot cm(-3) and 30.6 mWh center dot cm(-3)/11.02 W center dot cm(-3)), along with outstanding electrochemical and electrochromic performance even at high temperatures. Remarkably, the introduced Ta2O5 layer can efficiently prohibit the redistribution and diffusion of the movable ions at the fully charged state, endowing the all-inorganic EAS with a tardy self-discharge rate of 12.6 mV center dot g(-1), which is an extremely low value when compared with previous reported research. Significantly, the ultrathin all-inorganic EASs could also well maintain a slow self-discharge rate and their original electrochemical characteristics under various environmental temperatures. We envision that the novel strategy of electrode/electrolyte interface engineering can effectively deal with the severe self-discharge challenge of EAS, and provide more opportunities for their practical applications.
资助项目National Natural Science Foundation of China[62205311] ; National Natural Science Foundation of China[52073007] ; National Natural Science Foundation of China[61875005] ; National Natural Science Foundation of China[52011540389] ; Fundamental Research Program of Shanxi Province[202103021223177]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000997701100003
出版者NONFERROUS METALS SOC CHINA
资助机构National Natural Science Foundation of China ; Fundamental Research Program of Shanxi Province
源URL[http://ir.imr.ac.cn/handle/321006/178201]  
专题金属研究所_中国科学院金属研究所
通讯作者Liu, Lei; Diao, Xun-Gang
作者单位1.Natl Key Lab Electromagnet Space Secur, Tianjin 300308, Peoples R China
2.Shanghai Inst Space Power Sources, Res Ctr Photovolta, Shanghai 200245, Peoples R China
3.Beihang Univ, Sch Energy & Power Engn, Beijing 100191, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
5.North Univ China, Sch Energy & Power Engn, Taiyuan 030051, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Lei,Liu, Chen,Wang, Meng-Ying,et al. Anti-self-discharge ultrathin all-inorganic electrochromic asymmetric supercapacitors enabling intelligent and effective energy storage[J]. RARE METALS,2023:15.
APA Liu, Lei.,Liu, Chen.,Wang, Meng-Ying.,Li, Bin.,Wang, Ke.,...&Diao, Xun-Gang.(2023).Anti-self-discharge ultrathin all-inorganic electrochromic asymmetric supercapacitors enabling intelligent and effective energy storage.RARE METALS,15.
MLA Liu, Lei,et al."Anti-self-discharge ultrathin all-inorganic electrochromic asymmetric supercapacitors enabling intelligent and effective energy storage".RARE METALS (2023):15.

入库方式： OAI收割

来源：金属研究所

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