Monolithic Phosphate Interphase for Highly Reversible and Stable Zn Metal Anode
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(Published version)
Date
2023
Authors
Liu, S.
Vongsvivut, J.P.
Wang, Y.
Zhang, R.
Yang, F.
Zhang, S.
Davey, K.
Mao, J.
Guo, Z.
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Journal Title
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Journal article
Citation
Angewandte Chemie International Edition, 2023; 62(4):1-10
Statement of Responsibility
Sailin Liu, Jitraporn (Pimm) Vongsvivut, Yanyan Wang, Ruizhi Zhang, Fuhua Yang, Shilin Zhang, Kenneth Davey, Jianfeng Mao, and Zaiping Guo
Conference Name
Abstract
Zinc metal battery (ZMB) is promising as the next generation of energy storage system, but challenges relating to dendrites and corrosion of the zinc anode are restricting its practical application. Here, to stabilize Zn anode, we report a controlled electrolytic method for a monolithic solid-electrolyte interphase (SEI) via a high dipole moment solvent dimethyl methylphosphonate (DMMP). The DMMP-based electrolytes can generate a homogeneous and robust phosphate SEI (Zn3(PO4)2 and ZnP2O6). Benefiting from the protecting impact of this in situ monolithic SEI, the zinc electrode exhibits long-term cycling of 4700 h and a high Coulombic efficiency 99.89% in ZnjZn and ZnjCu cell, respectively. The full V2O5 jZn battery with DMMP-H2O hybrid electrolyte exhibits a high capacity retention of 82.2% following 4000 cycles under 5 Ag 1 . The first success in constructing the monolithic phosphate SEI will open a new avenue in electrolyte design for highly reversible and stable Zn metal anodes.
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First published: 29 November 2022
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© 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH Gmb. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.