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Title: Rechargeable Aqueous Zn2+-Battery with High Power Density and Long Cycle-life

Abstract

Li-ion batteries (LIBs) are approaching their energy limits imposed by the intercalation chemistry nature. As alternatives, multivalent (MV) chemistries bring both promises and challenges, with the main obstacle being the sluggish diffusion of MV-cations due to their strong electrostatic interaction with host lattices. In this work, we demonstrated that polyanion based robust crystal architecture could enable the ultrafast and reversible Zn 2+-intercalation and de-intercalation at a high working voltage. The nominal bivalence of Zn 2+ was successfully delocalized by the multiple atoms through the p-d hybridization between the V-d and O-p orbitals, hence the inserted Zn 2+ only bears an effective charge of 1.336, rendering its high mobility. The novel aqueous rechargeable 1.7 V Zn/LiV 2(PO 4) 3 cell based on such mechanism delivers a high power density (8000 W/kg at 60 C) comparable to supercapacitors, a high energy density (218 Wh/Kg at 1 C) close to LIBs, with extraordinary long cycle life of 4000 cycles. All of these parameters far exceed any Zn battery reported so far. The cell-level volumetric and specific energy densities of the Zn/LiV 2(PO 4) 3 cell are 320 Wh/L and 150 Wh/kg, respectively, which are even better than the first-generation LIBs. Furthermore, combining withmore » the intrinsic safety of the aqueous chemistry and the wide working temperature range, this cell makes a strong candidate for automotive applications.« less

Authors:
 [1]; ORCiD logo [2];  [3];  [3];  [3];  [3];  [3];  [2];  [4];  [3]
  1. Univ. of Maryland, College Park, MD (United States); U.S. Army Research Lab., Adelphi, MD (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ. of Maryland, College Park, MD (United States)
  4. U.S. Army Research Lab., Adelphi, MD (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1476764
Alternate Identifier(s):
OSTI ID: 1477130
Report Number(s):
BNL-209154-2018-JAAM
Journal ID: ISSN 1754-5692
Grant/Contract Number:  
SC0012704; AR0000389
Resource Type:
Accepted Manuscript
Journal Name:
Energy & Environmental Science
Additional Journal Information:
Journal Volume: 11; Journal Issue: 11; Journal ID: ISSN 1754-5692
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Wang, Fei, Hu, Enyuan, Sun, Wei, Gao, Tao, Ji, Xiao, Fan, Xiulin, Han, Fudong, Yang, Xiao -Qing, Xu, Kang, and Wang, Chunsheng. Rechargeable Aqueous Zn2+-Battery with High Power Density and Long Cycle-life. United States: N. p., 2018. Web. doi:10.1039/C8EE01883A.
Wang, Fei, Hu, Enyuan, Sun, Wei, Gao, Tao, Ji, Xiao, Fan, Xiulin, Han, Fudong, Yang, Xiao -Qing, Xu, Kang, & Wang, Chunsheng. Rechargeable Aqueous Zn2+-Battery with High Power Density and Long Cycle-life. United States. doi:10.1039/C8EE01883A.
Wang, Fei, Hu, Enyuan, Sun, Wei, Gao, Tao, Ji, Xiao, Fan, Xiulin, Han, Fudong, Yang, Xiao -Qing, Xu, Kang, and Wang, Chunsheng. Wed . "Rechargeable Aqueous Zn2+-Battery with High Power Density and Long Cycle-life". United States. doi:10.1039/C8EE01883A.
@article{osti_1476764,
title = {Rechargeable Aqueous Zn2+-Battery with High Power Density and Long Cycle-life},
author = {Wang, Fei and Hu, Enyuan and Sun, Wei and Gao, Tao and Ji, Xiao and Fan, Xiulin and Han, Fudong and Yang, Xiao -Qing and Xu, Kang and Wang, Chunsheng},
abstractNote = {Li-ion batteries (LIBs) are approaching their energy limits imposed by the intercalation chemistry nature. As alternatives, multivalent (MV) chemistries bring both promises and challenges, with the main obstacle being the sluggish diffusion of MV-cations due to their strong electrostatic interaction with host lattices. In this work, we demonstrated that polyanion based robust crystal architecture could enable the ultrafast and reversible Zn2+-intercalation and de-intercalation at a high working voltage. The nominal bivalence of Zn2+ was successfully delocalized by the multiple atoms through the p-d hybridization between the V-d and O-p orbitals, hence the inserted Zn2+ only bears an effective charge of 1.336, rendering its high mobility. The novel aqueous rechargeable 1.7 V Zn/LiV2(PO4)3 cell based on such mechanism delivers a high power density (8000 W/kg at 60 C) comparable to supercapacitors, a high energy density (218 Wh/Kg at 1 C) close to LIBs, with extraordinary long cycle life of 4000 cycles. All of these parameters far exceed any Zn battery reported so far. The cell-level volumetric and specific energy densities of the Zn/LiV2(PO4)3 cell are 320 Wh/L and 150 Wh/kg, respectively, which are even better than the first-generation LIBs. Furthermore, combining with the intrinsic safety of the aqueous chemistry and the wide working temperature range, this cell makes a strong candidate for automotive applications.},
doi = {10.1039/C8EE01883A},
journal = {Energy & Environmental Science},
number = 11,
volume = 11,
place = {United States},
year = {2018},
month = {10}
}

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Works referenced in this record:

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