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High voltage, solvent-free solid polymer electrolyte based on a star-comb PDLLA–PEG copolymer for lithium ion batteries

In this work, a novel star-comb copolymer based on poly(d,l-lactide) (PDLLA) macromonomer and poly(ethylene glycol)methyl ether methacrylate (PEGMA) was prepared, and the electrochemical properties were studied, with the aim of using it as a solid polymer electrolyte in lithium ion batteries. The si...

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Autores principales: Wang, Bingbing, Lou, Hongming, Xu, Hongli, Zhao, Junpeng, Wang, Qiujun, Shi, Qiao, Deng, Yonghong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078313/
https://www.ncbi.nlm.nih.gov/pubmed/35540385
http://dx.doi.org/10.1039/c7ra13664a
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author Wang, Bingbing
Lou, Hongming
Xu, Hongli
Zhao, Junpeng
Wang, Qiujun
Shi, Qiao
Deng, Yonghong
author_facet Wang, Bingbing
Lou, Hongming
Xu, Hongli
Zhao, Junpeng
Wang, Qiujun
Shi, Qiao
Deng, Yonghong
author_sort Wang, Bingbing
collection PubMed
description In this work, a novel star-comb copolymer based on poly(d,l-lactide) (PDLLA) macromonomer and poly(ethylene glycol)methyl ether methacrylate (PEGMA) was prepared, and the electrochemical properties were studied, with the aim of using it as a solid polymer electrolyte in lithium ion batteries. The six-arm vinyl functionalized PDLLA macromonomer was synthesized by a ring-opening polymerization (ROP) of d,l-lactide and subsequently an acylation of the hydroxy end-groups. A series of free-standing solid polymer electrolyte membranes from different ratios of PDLLA, PEGMA and LiTFSI were prepared through solvent-free free radical polymerization under UV radiation. The chemical structure of the obtained polymers was confirmed by (1)H NMR and FTIR. The as-prepared six-arm star-comb solid polymer electrolytes (PDLLA-SPEs) exhibit good thermal stability with T(d)(5%)s of ∼270 °C and low T(g)s of −48 to −34 °C. The electrochemical characterization shows that the PDLLA-SPEs possess a wide electrochemical window up to 5.1 V with an optimal ionic conductivity of 9.7 × 10(−5) S cm(−1) at 60 °C at an EO/Li(+) ratio of 16 : 1. Furthermore, the all-solid-state LiFePO(4)/Li cells display extraordinary cycling and rate performances at 60 °C by curing the PDLLA-SPEs directly on the cathode. These superior properties of the six-arm star-comb PDLLA-SPE make it a promising candidate solid electrolyte for lithium batteries.
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spelling pubmed-90783132022-05-09 High voltage, solvent-free solid polymer electrolyte based on a star-comb PDLLA–PEG copolymer for lithium ion batteries Wang, Bingbing Lou, Hongming Xu, Hongli Zhao, Junpeng Wang, Qiujun Shi, Qiao Deng, Yonghong RSC Adv Chemistry In this work, a novel star-comb copolymer based on poly(d,l-lactide) (PDLLA) macromonomer and poly(ethylene glycol)methyl ether methacrylate (PEGMA) was prepared, and the electrochemical properties were studied, with the aim of using it as a solid polymer electrolyte in lithium ion batteries. The six-arm vinyl functionalized PDLLA macromonomer was synthesized by a ring-opening polymerization (ROP) of d,l-lactide and subsequently an acylation of the hydroxy end-groups. A series of free-standing solid polymer electrolyte membranes from different ratios of PDLLA, PEGMA and LiTFSI were prepared through solvent-free free radical polymerization under UV radiation. The chemical structure of the obtained polymers was confirmed by (1)H NMR and FTIR. The as-prepared six-arm star-comb solid polymer electrolytes (PDLLA-SPEs) exhibit good thermal stability with T(d)(5%)s of ∼270 °C and low T(g)s of −48 to −34 °C. The electrochemical characterization shows that the PDLLA-SPEs possess a wide electrochemical window up to 5.1 V with an optimal ionic conductivity of 9.7 × 10(−5) S cm(−1) at 60 °C at an EO/Li(+) ratio of 16 : 1. Furthermore, the all-solid-state LiFePO(4)/Li cells display extraordinary cycling and rate performances at 60 °C by curing the PDLLA-SPEs directly on the cathode. These superior properties of the six-arm star-comb PDLLA-SPE make it a promising candidate solid electrolyte for lithium batteries. The Royal Society of Chemistry 2018-02-08 /pmc/articles/PMC9078313/ /pubmed/35540385 http://dx.doi.org/10.1039/c7ra13664a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Wang, Bingbing
Lou, Hongming
Xu, Hongli
Zhao, Junpeng
Wang, Qiujun
Shi, Qiao
Deng, Yonghong
High voltage, solvent-free solid polymer electrolyte based on a star-comb PDLLA–PEG copolymer for lithium ion batteries
title High voltage, solvent-free solid polymer electrolyte based on a star-comb PDLLA–PEG copolymer for lithium ion batteries
title_full High voltage, solvent-free solid polymer electrolyte based on a star-comb PDLLA–PEG copolymer for lithium ion batteries
title_fullStr High voltage, solvent-free solid polymer electrolyte based on a star-comb PDLLA–PEG copolymer for lithium ion batteries
title_full_unstemmed High voltage, solvent-free solid polymer electrolyte based on a star-comb PDLLA–PEG copolymer for lithium ion batteries
title_short High voltage, solvent-free solid polymer electrolyte based on a star-comb PDLLA–PEG copolymer for lithium ion batteries
title_sort high voltage, solvent-free solid polymer electrolyte based on a star-comb pdlla–peg copolymer for lithium ion batteries
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078313/
https://www.ncbi.nlm.nih.gov/pubmed/35540385
http://dx.doi.org/10.1039/c7ra13664a
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