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Dalton Transactions

Dalton Transactions

IF: 3.5
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Adjusting zinc deposition behaviors by a modified separator to acquire zinc anodes for aqueous rechargeable zinc-ion batteries?

Published:18 August 2023 DOI: 10.1039/D3DT02212A PMID: 37622489
Chaowei Li, Wenhui Wang, Shizhuo Liu, Jingchao Zhang, Xiangtao Kong, Zehao Li, Daojun Zhang, Jimin Du and Yagang Yao

Abstract

Aqueous rechargeable zinc ion batteries (ARZIBs) are ideal for massive and longstanding energy storage applications because of their excellent security and low operation cost. Nevertheless, ARZIBs are subject to the severe corrosion reaction of zinc metal anodes that is derived from the thermodynamic unsteadiness of the zinc anodes in aqueous solution, as well as zinc dendrite growth originating from uncontrolled zinc deposition. Herein, we created a separator by coating a thin piece of polypropylene (PP) with a compound consisting of zinc trifluoromethanesulfonate [Zn(OTf)2] and poly(vinylidene fluoride-hexafluoropropylene (PVDF-HFP). Consequently, the severe corrosion reaction of the zinc metal anodes and the profuse formation of zinc dendrites were effectively mitigated by the novel PP separator, which prolonged the lifetime of the zinc metal anodes. When a zinc metal plating layer was used with preferential (002) crystallographic orientation, the cyclic performance over 1100 h of the symmetrical Zn∥Zn battery based on the novel separator was steady. Additionally, the Zn∥MnO2 batteries exhibited an impressive specific capacity and competitive long durability of 75.5% over 500 cycles at a current density of 0.1 A g?1. With this work, we intend to set the standard for designing novel separators in the construction of advanced zinc anodes for high-performance ARZIBs.

Substances (4)

Related products
Procduct Name CAS Molecular Formula Supplier Price
Manganese dioxide 1313-13-9 MnO2 604 suppliers $7.62-$3565.00
Zinc trifluoromethanesulfonate 54010-75-2 C2F6O6S2Zn 412 suppliers $6.00-$1250.00
Polypropylene 9003-07-0 C22H42O3 303 suppliers $20.00-$4050.00
POLY(VINYLIDENE FLUORIDE-CO-HEXAFLUOROPROPYLENE) 9011-17-0 C5H2F8 73 suppliers $10.00-$999.00

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