High-performance aqueous sodium-ion battery using a hybrid electrolyte with a wide electrochemical stability window.

Shen, Yanxin; Han, Xiaonan; Cai, Tonghui; Hu, Haoyu; Li, Yanpeng; Zhao, Lianming; Hu, Han; Xue, Qingzhong; Zhao, Yi; Zhou, Jin; Gao, Xiuli; Xing, Wei; Wang, Xiaoning

Shen, Yanxin; Han, Xiaonan; Cai, Tonghui; Hu, Haoyu; Li, Yanpeng; Zhao, Lianming; Hu, Han; Xue, Qingzhong; Zhao, Yi; Zhou, Jin; Gao, Xiuli; Xing, Wei; Wang, Xiaoning.

Afiliación

Shen Y; State Key Laboratory of Heavy Oil Processing, School of Material Science and Engineering, China University of Petroleum Qingdao 266580 P. R. China xingwei@upc.edu.cn.
Han X; State Key Laboratory of Heavy Oil Processing, School of Material Science and Engineering, China University of Petroleum Qingdao 266580 P. R. China xingwei@upc.edu.cn.
Cai T; State Key Laboratory of Heavy Oil Processing, School of Material Science and Engineering, China University of Petroleum Qingdao 266580 P. R. China xingwei@upc.edu.cn.
Hu H; State Key Laboratory of Heavy Oil Processing, School of Material Science and Engineering, China University of Petroleum Qingdao 266580 P. R. China xingwei@upc.edu.cn.
Li Y; State Key Laboratory of Heavy Oil Processing, School of Material Science and Engineering, China University of Petroleum Qingdao 266580 P. R. China xingwei@upc.edu.cn.
Zhao L; State Key Laboratory of Heavy Oil Processing, School of Material Science and Engineering, China University of Petroleum Qingdao 266580 P. R. China xingwei@upc.edu.cn.
Hu H; Institute of New Energy, China University of Petroleum Qingdao 266580 P. R. China xlgao@upc.edu.cn.
Xue Q; State Key Laboratory of Heavy Oil Processing, School of Material Science and Engineering, China University of Petroleum Qingdao 266580 P. R. China xingwei@upc.edu.cn.
Zhao Y; School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China.
Zhou J; School of Chemistry and Chemical Engineering, Shandong University of Technology Zibo 255049 P. R. China.
Gao X; Institute of New Energy, China University of Petroleum Qingdao 266580 P. R. China xlgao@upc.edu.cn.
Xing W; State Key Laboratory of Heavy Oil Processing, School of Material Science and Engineering, China University of Petroleum Qingdao 266580 P. R. China xingwei@upc.edu.cn.
Wang X; Institute of New Energy, China University of Petroleum Qingdao 266580 P. R. China xlgao@upc.edu.cn.

RSC Adv ; 10(43): 25496-25499, 2020 Jul 03.

Article en En | MEDLINE | ID: mdl-35518583

ABSTRACT

ABSTRACT

The practical application of aqueous sodium-ion batteries (ASIBs) is limited by the electrolysis of water, which results in a low working voltage and energy density of ASIBs. Here, a NaClO4-based acetonitrile/water hybrid electrolyte (NaClO4(H2O)2AN2.4) is applied to ASIBs for the first time, which effectively extends the electrochemical stability window (ESW) to 3.0 V and reduces the internal resistance of the battery. Based on this hybrid electrolyte, an ASIB full cell using carbon coated Na2.85K0.15V2(PO4)3 and NaTi2(PO4)3 as the cathode and anode materials, respectively, can afford a discharge capacity and energy density of 52 mA h g-1 and 51 W h kg-1, respectively, at a current density of 1 A g-1. The energy density of this battery exceeds almost all reported traditional ASIBs.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: RSC Adv Año: 2020 Tipo del documento: Article