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A Crosslinked Polyethyleneglycol Solid Electrolyte Dissolving Lithium Bis(trifluoromethylsulfonyl)imide for Rechargeable Lithium Batteries

Replacing liquid electrolytes with solid ones can provide advantages in safety, and all‐solid‐state batteries with solid electrolytes are proposed to solve the issue of the formation of lithium dendrites. In this study, a crosslinked polymer composite solid electrolyte was presented, which enabled t...

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Autores principales: Tian, Guiying, Zhao, Zijian, Zinkevich, Tatiana, Elies, Katharina, Scheiba, Frieder, Ehrenberg, Helmut
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6856689/
https://www.ncbi.nlm.nih.gov/pubmed/31386794
http://dx.doi.org/10.1002/cssc.201901587
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author Tian, Guiying
Zhao, Zijian
Zinkevich, Tatiana
Elies, Katharina
Scheiba, Frieder
Ehrenberg, Helmut
author_facet Tian, Guiying
Zhao, Zijian
Zinkevich, Tatiana
Elies, Katharina
Scheiba, Frieder
Ehrenberg, Helmut
author_sort Tian, Guiying
collection PubMed
description Replacing liquid electrolytes with solid ones can provide advantages in safety, and all‐solid‐state batteries with solid electrolytes are proposed to solve the issue of the formation of lithium dendrites. In this study, a crosslinked polymer composite solid electrolyte was presented, which enabled the construction of lithium batteries with outstanding electrochemical behavior over long‐term cycling. The crosslinked polymeric host was synthesized through polymerization of the terminal amines of O,O‐bis(2‐aminopropyl) polypropylene glycol‐block‐polyethylene glycol‐block‐polypropylene glycol and terminal epoxy groups of bisphenol A diglycidyl ether at 90 °C and provided an amorphous matrix for Li(+) dissolution. This composite solid electrolyte containing Li(+) salt and garnet filler exhibited high flexibility, which supported the formation of favorable interfaces with the active materials, and possessed enough mechanical strength to suppress the penetration of lithium dendrites. Ionic conductivities higher than 5.0×10(−4) S cm(−1) above 45 °C were obtained as well as a wide electrochemical stability window (>4.51 V vs. Li/Li(+)) and a high Li(+) diffusion coefficient (≈16.6×10(−13) m(2) s(−1)). High cycling stability (>500 cycles or 1000 h) was demonstrated.
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spelling pubmed-68566892019-11-21 A Crosslinked Polyethyleneglycol Solid Electrolyte Dissolving Lithium Bis(trifluoromethylsulfonyl)imide for Rechargeable Lithium Batteries Tian, Guiying Zhao, Zijian Zinkevich, Tatiana Elies, Katharina Scheiba, Frieder Ehrenberg, Helmut ChemSusChem Full Papers Replacing liquid electrolytes with solid ones can provide advantages in safety, and all‐solid‐state batteries with solid electrolytes are proposed to solve the issue of the formation of lithium dendrites. In this study, a crosslinked polymer composite solid electrolyte was presented, which enabled the construction of lithium batteries with outstanding electrochemical behavior over long‐term cycling. The crosslinked polymeric host was synthesized through polymerization of the terminal amines of O,O‐bis(2‐aminopropyl) polypropylene glycol‐block‐polyethylene glycol‐block‐polypropylene glycol and terminal epoxy groups of bisphenol A diglycidyl ether at 90 °C and provided an amorphous matrix for Li(+) dissolution. This composite solid electrolyte containing Li(+) salt and garnet filler exhibited high flexibility, which supported the formation of favorable interfaces with the active materials, and possessed enough mechanical strength to suppress the penetration of lithium dendrites. Ionic conductivities higher than 5.0×10(−4) S cm(−1) above 45 °C were obtained as well as a wide electrochemical stability window (>4.51 V vs. Li/Li(+)) and a high Li(+) diffusion coefficient (≈16.6×10(−13) m(2) s(−1)). High cycling stability (>500 cycles or 1000 h) was demonstrated. John Wiley and Sons Inc. 2019-09-24 2019-10-21 /pmc/articles/PMC6856689/ /pubmed/31386794 http://dx.doi.org/10.1002/cssc.201901587 Text en © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
spellingShingle Full Papers
Tian, Guiying
Zhao, Zijian
Zinkevich, Tatiana
Elies, Katharina
Scheiba, Frieder
Ehrenberg, Helmut
A Crosslinked Polyethyleneglycol Solid Electrolyte Dissolving Lithium Bis(trifluoromethylsulfonyl)imide for Rechargeable Lithium Batteries
title A Crosslinked Polyethyleneglycol Solid Electrolyte Dissolving Lithium Bis(trifluoromethylsulfonyl)imide for Rechargeable Lithium Batteries
title_full A Crosslinked Polyethyleneglycol Solid Electrolyte Dissolving Lithium Bis(trifluoromethylsulfonyl)imide for Rechargeable Lithium Batteries
title_fullStr A Crosslinked Polyethyleneglycol Solid Electrolyte Dissolving Lithium Bis(trifluoromethylsulfonyl)imide for Rechargeable Lithium Batteries
title_full_unstemmed A Crosslinked Polyethyleneglycol Solid Electrolyte Dissolving Lithium Bis(trifluoromethylsulfonyl)imide for Rechargeable Lithium Batteries
title_short A Crosslinked Polyethyleneglycol Solid Electrolyte Dissolving Lithium Bis(trifluoromethylsulfonyl)imide for Rechargeable Lithium Batteries
title_sort crosslinked polyethyleneglycol solid electrolyte dissolving lithium bis(trifluoromethylsulfonyl)imide for rechargeable lithium batteries
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6856689/
https://www.ncbi.nlm.nih.gov/pubmed/31386794
http://dx.doi.org/10.1002/cssc.201901587
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