An Ultrahigh Rate and Stable Zinc Anode by Facet-Matching-Induced Dendrite Regulation

An Ultrahigh Rate and Stable Zinc Anode by Facet-Matching-Induced Dendrite Regulation

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 34(2022), 37 vom: 01. Sept., Seite e2203835
1. Verfasser: Yi, Zhehan (VerfasserIn)
Weitere Verfasser: Liu, Jiaxin, Tan, Shandong, Sang, Zhiyuan, Mao, Jing, Yin, Lichang, Liu, Xiaoguang, Wang, Liqun, Hou, Feng, Dou, Shi Xue, Cheng, Hui-Ming, Liang, Ji
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article dendrite regulation facet matching high current density ultrahigh-rate batteries zinc anodes
Beschreibung
Zusammenfassung:© 2022 Wiley-VCH GmbH.
Resource-abundant metal (e.g., zinc) batteries feature intrinsic advantages of safety and sustainability. Their practical feasibility, however, is impeded by the poor reversibility of metal anodes, typically caused by the uncontrollable dendrite enlargement. Significant effort is exerted to completely prevent dendrites from forming, but this seems less effective at high current densities. Herein, this work presents an alternative dendrite regulation strategy of forming tiny, homogeneously distributed, and identical zinc dendrites by facet matching, which effectively avoids undesirable dendrite enlargement. Confirmed by multiscale theoretical screening and characterization, the regularly exposed Cu(111) facets at the ridges of a copper nanowire are capable of such dendrite regulation by forming a low-mismatched Zn(002)/Cu(111) interface. Consequently, reversible zinc electroplating/stripping is achieved at an unprecedentedly high rate of 100 mA cm-2 for over 30 000 cycles, corresponding to an accumulative areal capacity up to 30 Ah cm-2 . A full cell using this anode shows a high capacity of 308.3 mAh g-1 and a high capacity retention of 91.4% after 800 cycles. This strategy is also viable for magnesium and aluminum anodes, thus opening up a promising and universal avenue toward long-life and high-rate metal anodes
Beschreibung:Date Revised 15.09.2022
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202203835