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Application of polyamide 6 microfiber non-woven fabrics in the large-scale production of all-solid-state lithium metal batteries.

Authors
  • Gao, Lu1
  • Sarmad, Bushra2
  • Li, Jianxin1, 3
  • Cheng, Bowen1, 3
  • Kang, Weimin1
  • Deng, Nanping1, 3
  • 1 State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, PR China. , (China)
  • 2 School of International Education, Tiangong University, Tianjin 300387, PR China. , (China)
  • 3 School of Material Science and Engineering, Tiangong University, Tianjin, 300387, PR China. , (China)
Type
Published Article
Journal
Journal of Power Sources
Publisher
Elsevier
Publication Date
Nov 01, 2020
Volume
475
Pages
228663–228663
Identifiers
DOI: 10.1016/j.jpowsour.2020.228663
PMID: 32863551
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

All-solid-state electrolytes have received extensive attention due to their excellent safety and good electrochemical performance. However, due to the harsh conditions of the preparation process, the commercial production of all-solid-state electrolytes remains a challenge. The outbreak of the novel coronavirus pneumonia (COVID-19) has caused great inconvenience to people, while also allowing soft, lightweight and mass-producible non-woven fabrics in masks come into sight. Here, a polymer/polymer solid composite electrolyte is obtained by introducing the polyamide 6 (PA6) microfiber non-woven fabric into PEO polymer through the hot-pressing method. The addition of the PA6 non-woven fabric with lithium-philic properties can not only reduce the crystallinity of the polymer, but also provide more functional transmission sites and then promote the migration of lithium ions at the molecular level. Moreover, due to the sufficient mechanical strength and flexibility of the PA6 non-woven fabric, the composite electrolyte shows excellent inhibition ability of lithium dendrite growth and high electrochemical stability. The novel design concept of introducing low-cost and large-scale production of non-woven fabrics into all-solid-state composite electrolytes to develop high-performance lithium metal batteries is attractive, and can also be broadened to the combination of different types of polymers to meet the needs of various batteries. © 2020 Elsevier B.V. All rights reserved.

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