Bismuth nanosheets guided zinc deposition enabled long-life aqueous zinc-based flow batteries

Nie, Yizhe; Chen, Huang; Wu, Jiajun; Nie, Rui; Yu, Lihong; Liu, Le; Xi, Jingyu

doi:10.1016/j.cej.2024.155615

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.155615

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Bismuth nanosheets guided zinc deposition enabled long-life aqueous zinc-based flow batteries

Yizhe Nie,

Huang Chen,

Jiajun Wu

et al.

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Cited by 2 publications

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Next‐Generation Ultrathin Lightweight Electrode for pH‐Universal Aqueous Flow Batteries

Wu,

Nie,

et al. 2024

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Aqueous flow batteries (AFBs) are promising long‐duration energy storage system owing to intrinsic safety, inherent scalability, and ultralong cycle life. However, due to the thicker (3–5 mm) and heavier (300–600 g m−2) nature, the current used graphite felt (GF) electrodes still limit the volume/weight power density of AFBs. Herein, a lightweight (≈50 g m−2) and ultrathin (≈0.3 mm) carbon microtube electrode (CME) is proposed derived from a scalable one‐step carbonization of commercial cotton cloth. The unique loose woven structure composed of carbon microtube endows CME with excellent conductivity, abundant active sites, and enhanced electrolyte transport performance, thereby significantly reducing polarization in working AFBs. As a consequence, CME demonstrates excellent cycling performance in pH‐universal AFBs, including acidic vanadium flow battery (maximum power density of 632.2 mW cm−2), neutral Zn‐I2 flow battery (750 cycles with average Coulombic efficiency of 99.6%), and alkaline Zn‐Fe flow battery (energy efficiency over 70% at 200 mA cm−2). More importantly, the estimated price of CME is only 5% of GF (≈3 vs ≈60 $ m−2). Therefore, it is reasonably anticipated that the lightweight and ultrathin CME may emerge as the next generation electrode for AFBs.

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Next‐Generation Ultrathin Lightweight Electrode for pH‐Universal Aqueous Flow Batteries

Wu,

Nie,

et al. 2024

Small

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Electrostatic effect synergistically enabling the superior ion selectivity and ion conductivity of composite membrane for alkaline zinc-iron flow batteries

Gao,

Wang,

Liu

et al. 2024

Journal of Membrane Science

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Bismuth nanosheets guided zinc deposition enabled long-life aqueous zinc-based flow batteries

Cited by 2 publications

References 33 publications

Next‐Generation Ultrathin Lightweight Electrode for pH‐Universal Aqueous Flow Batteries

Next‐Generation Ultrathin Lightweight Electrode for pH‐Universal Aqueous Flow Batteries

Electrostatic effect synergistically enabling the superior ion selectivity and ion conductivity of composite membrane for alkaline zinc-iron flow batteries

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