Seamless alloying stabilizes solid-electrolyte interphase for highly reversible lithium metal anode

Yunpeng Jiang; Qiang Lv; Changyuan Bao; Bo Wang; Penghui Ren; Haoyin Zhong; Yi Yang; Ximeng Liu; Yichao Dong; Fan Jin; Dianlong Wang; Ting Xiong; Huakun Liu; Shixue Dou; John Wang; Junmin Xue

Cell Reports Physical Science (Mar 2022)

Seamless alloying stabilizes solid-electrolyte interphase for highly reversible lithium metal anode

Yunpeng Jiang,
Qiang Lv,
Changyuan Bao,
Bo Wang,
Penghui Ren,
Haoyin Zhong,
Yi Yang,
Ximeng Liu,
Yichao Dong,
Fan Jin,
Dianlong Wang,
Ting Xiong,
Huakun Liu,
Shixue Dou,
John Wang,
Junmin Xue

Affiliations

Yunpeng Jiang: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
Qiang Lv: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
Changyuan Bao: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
Bo Wang: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; Corresponding author
Penghui Ren: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
Haoyin Zhong: Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
Yi Yang: Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
Ximeng Liu: Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
Yichao Dong: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
Fan Jin: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
Dianlong Wang: MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China; Corresponding author
Ting Xiong: Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
Huakun Liu: Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Wollongong, NSW 2500, Australia
Shixue Dou: Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Wollongong, NSW 2500, Australia
John Wang: Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore; Corresponding author
Junmin Xue: Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore; Corresponding author

Journal volume & issue: Vol. 3, no. 3
p. 100785

Abstract

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Summary: Despite their widespread study, lithium metal anodes still face the bottleneck problem of low average Coulombic efficiency. Herein, we adopt an electroless plating method and introduce additive (vanillin) to develop nanoscale silver hosts. The uniform nanoscale silver layer is conducive to seamless Li/Ag alloying process, thereby enabling flat lithium deposition. Since the Li/Ag alloying process occurs after the formation of solid electrolyte interphase (SEI), the seamless alloying process stabilizes the SEI, which improves the reversibility of the lithium metal anode. On this basis, a 3D-printed copper host-coated dense nanoscale silver layer is constructed, which reduces the effective current density and hence lowers the polarization of lithium deposition or stripping. Moreover, the 3D structure induces the epitaxial growth of lithium and thus alleviates the volume change of lithium metal. As a result, an average Coulombic efficiency of 99.61% is achieved in the Li/3D Ag half-cell.

Published in Cell Reports Physical Science

ISSN: 2666-3864 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Science: Physics
Website: https://www.cell.com/cell-reports-physical-science

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