Self-Selective (220) Directional Grown Copper Current Collector Design for Cycling-Stable Anode-Less Lithium Metal Batteries

Bibliographische Detailangaben
Veröffentlicht in:	Advanced materials (Deerfield Beach, Fla.). - 1998. - (2024) vom: 15. Dez., Seite e2413420
1. Verfasser:	Zhan, Jun (VerfasserIn)
Weitere Verfasser:	Deng, Lequan, Liu, Yaoyao, Hao, Mengjiao, Wang, Zhaofen, Dong, Lu-Tan, Yang, Yushuang, Song, Kepeng, Qi, Dongqing, Wang, Jianjun, Wang, Shuhua, Liu, Hong, Zhou, Weijia, Chen, Hao
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2024
Zugriff auf das übergeordnete Werk:	Advanced materials (Deerfield Beach, Fla.)
Schlagworte:	Journal Article Li salt adsorption and decomposition anode‐less lithium metal batteries inorganic solid electrolyte interphase self‐selective and inorganic interphase‐catalyzing current collector design

Beschreibung
Zusammenfassung:	© 2024 Wiley‐VCH GmbH. Anode-less lithium metal batteries (ALLMB) are promising candidates for energy storage applications owing to high-energy-density and safety characteristics. However, the unstable solid electrolyte interphase (SEI) formed on anode copper current collector (CuCC) leads to poor reversibility of uneven lithium deposition/stripping. Though the well-known knowledge of lithium salt-derived inorganic-rich SEI (iSEI) benefiting uniform lithium deposition, how to design a lithium salt-philic CuCC with undiscovered salt-philic facet that favors lithium salt adsorption and catalyzing salt decomposition into iSEI, remains unexplored yet. Here, a self-selective and iSEI-catalyzing CuCC design is developed by using lithium salt as surface-controlling agent in CuCC electrodeposition process, self-selecting out and guiding unidirectional Cu(220) facet growth as the most salt-philic facets of CuCC. This self-selected Cu(220) facet promotes the salt adsorption and formation of salt decomposition-derived iSEI in battery, thus improving the lithium plating/stripping coulombic efficiency from 99.25% to 99.50% (stable within 400 cycles), and the capacity decay rate of ALLMB is also reduced by 42.4% within 100 cycles. Practical mass-productivity of this self-selective CuCC for 350 Wh kg-1 pouch-cell fabrication is also demonstrated, providing a new self-selective current collector design strategy for improving selectivity and catalyzation of desired chemical reaction, important for high-selectivity electrochemical reaction system construction
Beschreibung:	Date Revised 16.12.2024 published: Print-Electronic Citation Status Publisher
ISSN:	1521-4095
DOI:	10.1002/adma.202413420