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Title: Stable Li Metal Anode by a Hybrid Lithium Polysulfidophosphate/Polymer Crosslinking Film

Abstract

The practical application of rechargeable lithium (Li) metal batteries has long been hindered by the unstable Li metal anode with problems like Li dendrite growth, low Coulombic efficiency (CE), and short cycle life. Here, we demonstrate a multifunctional sulfur-containing hybrid Li polysulfidophosphate and poly(2-chloroethyl acrylate) cross-linking film that can provide effective protection for Li metal anode. This film can facilitate Li metal anode generating a stable organic/inorganic hybrid solid electrolyte interphase (SEI) layer containing multiple components such as polymer-tethered organo(poly)sulfide, inorganic Li polysulfidophosphate, Li sulfides, and Li salts. Thanks to this hybrid robust SEI layer, dendrite-free Li deposition and stable cycling of Li metal anode can be achieved (e.g. CE >98.7% over 950 cycles). We demonstrated this Li protection technique enables both the protected Li metal anode and Li-metal-free anode cycling with significantly improved CEs and stability in full cells using LiFePO4 (~2.4 mAh/cm2) cathode.

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [1]; ORCiD logo [1]
  1. Pennsylvania State Univ., University Park, PA (United States)
Publication Date:
Research Org.:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
OSTI Identifier:
1657237
Grant/Contract Number:  
EE0007795
Resource Type:
Accepted Manuscript
Journal Name:
ACS Energy Letters
Additional Journal Information:
Journal Volume: 4; Journal Issue: 6; Journal ID: ISSN 2380-8195
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; 42 ENGINEERING; lithium (Li) metal batteries; solid electrolyte interphase (SEI) layer; Polymer Crosslinking Film

Citation Formats

Zhao, Yuming, Gao, Yue, Li, Guoxing, Wang, Daiwei, Huang, Qingquan, and Wang, Donghai. Stable Li Metal Anode by a Hybrid Lithium Polysulfidophosphate/Polymer Crosslinking Film. United States: N. p., 2019. Web. https://doi.org/10.1021/acsenergylett.9b00539.
Zhao, Yuming, Gao, Yue, Li, Guoxing, Wang, Daiwei, Huang, Qingquan, & Wang, Donghai. Stable Li Metal Anode by a Hybrid Lithium Polysulfidophosphate/Polymer Crosslinking Film. United States. https://doi.org/10.1021/acsenergylett.9b00539
Zhao, Yuming, Gao, Yue, Li, Guoxing, Wang, Daiwei, Huang, Qingquan, and Wang, Donghai. Tue . "Stable Li Metal Anode by a Hybrid Lithium Polysulfidophosphate/Polymer Crosslinking Film". United States. https://doi.org/10.1021/acsenergylett.9b00539. https://www.osti.gov/servlets/purl/1657237.
@article{osti_1657237,
title = {Stable Li Metal Anode by a Hybrid Lithium Polysulfidophosphate/Polymer Crosslinking Film},
author = {Zhao, Yuming and Gao, Yue and Li, Guoxing and Wang, Daiwei and Huang, Qingquan and Wang, Donghai},
abstractNote = {The practical application of rechargeable lithium (Li) metal batteries has long been hindered by the unstable Li metal anode with problems like Li dendrite growth, low Coulombic efficiency (CE), and short cycle life. Here, we demonstrate a multifunctional sulfur-containing hybrid Li polysulfidophosphate and poly(2-chloroethyl acrylate) cross-linking film that can provide effective protection for Li metal anode. This film can facilitate Li metal anode generating a stable organic/inorganic hybrid solid electrolyte interphase (SEI) layer containing multiple components such as polymer-tethered organo(poly)sulfide, inorganic Li polysulfidophosphate, Li sulfides, and Li salts. Thanks to this hybrid robust SEI layer, dendrite-free Li deposition and stable cycling of Li metal anode can be achieved (e.g. CE >98.7% over 950 cycles). We demonstrated this Li protection technique enables both the protected Li metal anode and Li-metal-free anode cycling with significantly improved CEs and stability in full cells using LiFePO4 (~2.4 mAh/cm2) cathode.},
doi = {10.1021/acsenergylett.9b00539},
journal = {ACS Energy Letters},
number = 6,
volume = 4,
place = {United States},
year = {2019},
month = {4}
}

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Works referencing / citing this record:

Stable lithium metal anodes enabled by inorganic/organic double-layered alloy and polymer coating
journal, January 2019

  • Zhang, Yuanjun; Wang, Guanyao; Tang, Liang
  • Journal of Materials Chemistry A, Vol. 7, Issue 44
  • DOI: 10.1039/c9ta09523c