A fluoropolymer bifunctional solid membrane interface for improving the discharge duration in aqueous Al–air batteries

Manhui Wei; Keliang Wang; Thi Ha My Pham; Meixia Zhang; Daiyuan Zhong; Hengwei Wang; Liping Zhong; Dongxin Liu; Pucheng Pei; Andreas Züttel

doi:10.1039/D3CC02671J

A fluoropolymer bifunctional solid membrane interface for improving the discharge duration in aqueous Al–air batteries†

Manhui Wei,

^abc Keliang Wang,

*^ad Thi Ha My Pham,^bc Meixia Zhang,^a Daiyuan Zhong,

^a Hengwei Wang,^a Liping Zhong,

^bc Dongxin Liu,^a Pucheng Pei^d and Andreas Züttel

^bc

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* Corresponding authors

^a School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
E-mail: wangkl@bit.edu.cn

^b Lab. of Materials for Renewable Energy (LMER), Institute of Chemical Sciences and Engineering (ISIC), Basic Science Faculty (SB), École Polytechnique Fédérale de Lausanne (EPFL) Valais/Wallis, Energypolis, Sion CH-1951, Switzerland

^c Empa Materials Science and Technology, Dübendorf CH-8600, Switzerland

^d State Key Lab. of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China

Abstract

Herein, a fluoropolymer bifunctional solid membrane interface (SMI) for an aqueous Al–air battery is proposed, which inhibits anodic self-corrosion, while concurrently reducing the accumulation of undesirable by-products. A battery using the SMI exhibits a remarkable anticorrosion efficiency of 81.31% and achieves an astonishing battery lifetime improvement rate of 184.37% under the condition of 5 min intermittent discharge.

Chemical Communications

A fluoropolymer bifunctional solid membrane interface for improving the discharge duration in aqueous Al–air batteries†

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A fluoropolymer bifunctional solid membrane interface for improving the discharge duration in aqueous Al–air batteries

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