Liquid Metal-Skinned Zn Powder Anodes Enabled by Capillary Suspension
Source abstract
Abstract
Zinc (Zn) powder-based anodes have garnered considerable attention as viable alternatives to their conventional Zn foil-based counterparts. However, challenges arising from undesirable interfacial side reactions and dendritic Zn growth hinder their practical implementation. Here, we present a class of liquid metal-skinned Zn (LSZ) powder anodes enabled by capillary suspension. The capillary suspension strategy can overcome the miscibility of liquid metal with other components, resulting in the self-standing and uniform LSZ powder anode. The nanothick eutectic gallium–indium (EGaIn) skin layer on Zn powders facilitated the horizontal growth of Zn along the (002) plane and mitigated Zn corrosion and hydrogen evolution reaction. Consequently, a full cell (V 2 O 5 cathode ∥ LSZ powder anode) exhibited a stable capacity retention per cycle of 99.99% over 2000 cycles at a fast current rate of 1 A g –1, outperforming those of previously reported aqueous Zn full cells.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced battery technologies research · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, United States
Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
Funding
National Research Foundation of Korea
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