A bifunctional ethylene-vinyl acetate copolymer protective layer for dendrites-free lithium metal anodes

Yeru Liang; Ye Xiao; Chong Yan; Rui Xu; Jun Fan Ding; Ji Liang; Hong Jie Peng; Hong Yuan; Jia Qi Huang

doi:10.1016/j.jechem.2020.01.027

A bifunctional ethylene-vinyl acetate copolymer protective layer for dendrites-free lithium metal anodes

Yeru Liang, Ye Xiao, Chong Yan, Rui Xu, Jun Fan Ding, Ji Liang, Hong Jie Peng, Hong Yuan, Jia Qi Huang^*

^*Corresponding author for this work

Advanced Research Institute of Multidisciplinary Science

Research output: Contribution to journal › Article › peer-review

68 Citations (Scopus)

Abstract

Lithium metal batteries are strongly considered as one of the most promising candidates for next-generation high-performance battery systems. However, the uncontrollable growth of lithium dendrites and the highly reactive lithium metal result in the severe safety risks and the short lifespan for high-energy-density rechargeable batteries. Here, we demonstrate a hydrophobic and ionically conductive ethylene-vinyl acetate (EVA) copolymer layer can not only endow lithium metal anodes with an air-stable and anti-water surface, but also efficiently suppress the lithium-dendrites growth during the electrochemical cycling process. Therefore, the introduction of the EVA copolymer as a bifunctional protection layer simultaneously improves the anti-water/air performance and electrochemical cycling stability of lithium metal anode.

Original language	English
Pages (from-to)	203-207
Number of pages	5
Journal	Journal of Energy Chemistry
Volume	48
DOIs	https://doi.org/10.1016/j.jechem.2020.01.027
Publication status	Published - Sept 2020

Keywords

Air-stable and anti-water
Bifunctional copolymer layer
Dendrites-free
Lithium metal anode
Solid electrolyte interphase (SEI)

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10.1016/j.jechem.2020.01.027

Cite this

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title = "A bifunctional ethylene-vinyl acetate copolymer protective layer for dendrites-free lithium metal anodes",

abstract = "Lithium metal batteries are strongly considered as one of the most promising candidates for next-generation high-performance battery systems. However, the uncontrollable growth of lithium dendrites and the highly reactive lithium metal result in the severe safety risks and the short lifespan for high-energy-density rechargeable batteries. Here, we demonstrate a hydrophobic and ionically conductive ethylene-vinyl acetate (EVA) copolymer layer can not only endow lithium metal anodes with an air-stable and anti-water surface, but also efficiently suppress the lithium-dendrites growth during the electrochemical cycling process. Therefore, the introduction of the EVA copolymer as a bifunctional protection layer simultaneously improves the anti-water/air performance and electrochemical cycling stability of lithium metal anode.",

keywords = "Air-stable and anti-water, Bifunctional copolymer layer, Dendrites-free, Lithium metal anode, Solid electrolyte interphase (SEI)",

author = "Yeru Liang and Ye Xiao and Chong Yan and Rui Xu and Ding, {Jun Fan} and Ji Liang and Peng, {Hong Jie} and Hong Yuan and Huang, {Jia Qi}",

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doi = "10.1016/j.jechem.2020.01.027",

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T1 - A bifunctional ethylene-vinyl acetate copolymer protective layer for dendrites-free lithium metal anodes

AU - Liang, Yeru

AU - Xiao, Ye

AU - Yan, Chong

AU - Xu, Rui

AU - Ding, Jun Fan

AU - Liang, Ji

AU - Peng, Hong Jie

AU - Yuan, Hong

AU - Huang, Jia Qi

PY - 2020/9

Y1 - 2020/9

N2 - Lithium metal batteries are strongly considered as one of the most promising candidates for next-generation high-performance battery systems. However, the uncontrollable growth of lithium dendrites and the highly reactive lithium metal result in the severe safety risks and the short lifespan for high-energy-density rechargeable batteries. Here, we demonstrate a hydrophobic and ionically conductive ethylene-vinyl acetate (EVA) copolymer layer can not only endow lithium metal anodes with an air-stable and anti-water surface, but also efficiently suppress the lithium-dendrites growth during the electrochemical cycling process. Therefore, the introduction of the EVA copolymer as a bifunctional protection layer simultaneously improves the anti-water/air performance and electrochemical cycling stability of lithium metal anode.

AB - Lithium metal batteries are strongly considered as one of the most promising candidates for next-generation high-performance battery systems. However, the uncontrollable growth of lithium dendrites and the highly reactive lithium metal result in the severe safety risks and the short lifespan for high-energy-density rechargeable batteries. Here, we demonstrate a hydrophobic and ionically conductive ethylene-vinyl acetate (EVA) copolymer layer can not only endow lithium metal anodes with an air-stable and anti-water surface, but also efficiently suppress the lithium-dendrites growth during the electrochemical cycling process. Therefore, the introduction of the EVA copolymer as a bifunctional protection layer simultaneously improves the anti-water/air performance and electrochemical cycling stability of lithium metal anode.

KW - Air-stable and anti-water

KW - Bifunctional copolymer layer

KW - Dendrites-free

KW - Lithium metal anode

KW - Solid electrolyte interphase (SEI)

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DO - 10.1016/j.jechem.2020.01.027

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SN - 2095-4956

VL - 48

SP - 203

EP - 207

JO - Journal of Energy Chemistry

JF - Journal of Energy Chemistry

ER -

A bifunctional ethylene-vinyl acetate copolymer protective layer for dendrites-free lithium metal anodes

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Keywords

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