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Bi-Cation Electrolyte for a 1.7 V Aqueous Zn Ion Battery

文献类型：期刊论文

作者Li, Na2; Li, Guoqing2; Li, Changji3; Yang, Huicong3; Qin, Gaowu2; Sun, Xudong2; Li, Feng3; Cheng, Hui-Ming1,3
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2020-03-25
卷号12期号:12页码:13790-13796
关键词Zn-MnO2 battery bication electrolyte Al(CF3SO3)(3) high voltage high energy density
ISSN号1944-8244
DOI10.1021/acsami.9b20531
通讯作者Li, Na(lina@mail.neu.edu.cn) ; Li, Feng(fli@imr.a.cn)
英文摘要Rechargeable aqueous zinc-ion batteries (ZIBs) are receiving increased attention because of their high safety and low cost. However, their practical application is plagued by their low energy density as a result of low output voltage and a narrow voltage window of aqueous electrolytes. Here, we explored a ZIB with a wider potential window using bication (1 M Al(CF3SO3)(3)/1 M Zn(CF3SO3)(2)) as the electrolyte and alpha-MnO2 as the cathode, obtaining a discharge voltage of 1.7 V, similar to 0.3 V higher than the value reported earlier. The resultant cell delivers a record high energy density of 448 W h kg(-1) (based on MnO2 mass) and retains 100% capacity over 1000 cycles. The ion-storage mechanism and the role of Al3+ in enlarging the output voltage were elucidated. This research indicates the important role of using bications in improving the electrochemical performance of aqueous ZIBs, opening a new way to increase the energy density of aqueous energy storage devices.
资助项目National Natural Science Foundation of China[51602044] ; National Natural Science Foundation of China[51525206] ; Fundamental Research Funds for the Central Universities[N170205021] ; Bureau of Industry and Information Technology of Shenzhen for the 2017 Graphene Manufacturing Innovation Center Project[201901171523]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000526552100020
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Bureau of Industry and Information Technology of Shenzhen for the 2017 Graphene Manufacturing Innovation Center Project
源URL[http://ir.imr.ac.cn/handle/321006/138346]  
专题金属研究所_中国科学院金属研究所
通讯作者Li, Na; Li, Feng
作者单位1.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China
2.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China
3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Li, Na,Li, Guoqing,Li, Changji,et al. Bi-Cation Electrolyte for a 1.7 V Aqueous Zn Ion Battery[J]. ACS APPLIED MATERIALS & INTERFACES,2020,12(12):13790-13796.
APA Li, Na.,Li, Guoqing.,Li, Changji.,Yang, Huicong.,Qin, Gaowu.,...&Cheng, Hui-Ming.(2020).Bi-Cation Electrolyte for a 1.7 V Aqueous Zn Ion Battery.ACS APPLIED MATERIALS & INTERFACES,12(12),13790-13796.
MLA Li, Na,et al."Bi-Cation Electrolyte for a 1.7 V Aqueous Zn Ion Battery".ACS APPLIED MATERIALS & INTERFACES 12.12(2020):13790-13796.

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来源：金属研究所

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