The Range of Influence across Commercial Glass Fiber Separators on the Cycling of the Zinc Metal Anode

阳极 自行车 材料科学 金属 航程(航空) 纤维 冶金 复合材料 电极 化学 考古 物理化学 历史
作者
Evan J. Hansen,Zhenrui Wu,Tina Olfatbakhsh,Abbas S. Milani,Jian Liu
出处
期刊:Meeting abstracts 卷期号:MA2024-01 (3): 560-560
标识
DOI:10.1149/ma2024-013560mtgabs
摘要

Aqueous zinc-ion batteries (AZIBs) have attracted significant research attention due to their promising potential for large-scale energy storage applications in support of the rapid global growth of renewable wind and solar energy generation. However, challenges associated with the limited cycling life and low energy density of AZIBs persist as the critical limiting factors preventing their practical use in utility-scale energy storage applications [1]. Throughout zinc-ion research working to address these challenges, commercial glass fiber (GF) membranes are often used as the separator in studies investigating cathode, electrolyte, and anode designs [2]. Nevertheless, commercial GF membranes are available with a range of physicochemical properties, and the specific details of the selected membrane are often missing in published studies. In our work, we systematically compare Whatman™ GF separators (GF/A, GF/B, GF/C, GF/D, and GF/F) to assess the influence of the separator’s physicochemical properties ( i.e., pore size and thickness) on the cycling life and cell-to-cell variability across multiple trials of Zn|Zn cells. Under constant current cycling, significant differences were observed in the cycling life and cell-to-cell consistency depending on the pore size and thickness of the GF separator [3]. In addition, our use of micro-computed X-ray tomography explores the associations between the separator’s pore size and zinc deposition morphology and provides visual identification of the failure mechanism corresponding with an overpotential collapse. The results of this work clarify the importance of GF separator selection and the separator’s influence to support the improvement of other cell components. References [1] L. Ma, M. A. Schroeder, O. Borodin, T. P. Pollard, M. S. Ding, C. Wang, K. Xu, Realizing high zinc reversibility in rechargeable batteries, Nature Energy 5(10) (2020) 743-749. [2] Y. Zhang, G. Yang, M.L. Lehmann, C. Wu, L. Zhao, T. Saito, Y. Liang, J. Nanda, Y. Yao, Separator Effect on Zinc Electrodeposition Behavior and Its Implication for Zinc Battery Lifetime, Nano Letters (2021). [3] E. J. Hansen, Z. Wu, T. Olfatbakhsh, A. Milani, J. Liu, The role of glass fiber separators on the cycling of zinc metal anodes, Journal of Membrane Science 688 (2023) 122130.

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