One-step radiation synthesis of gel polymer electrolytes with high ionic conductivity for lithium-ion batteries

Yimeng Wang; Jingyi Qiu; Jing Peng; Jiuqiang Li; Maolin Zhai

doi:10.1039/C7TA02291C

One-step radiation synthesis of gel polymer electrolytes with high ionic conductivity for lithium-ion batteries†

Yimeng Wang,

^a Jingyi Qiu,^b Jing Peng,^a Jiuqiang Li^a and Maolin Zhai

*^a

Author affiliations

* Corresponding authors

^a Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
E-mail: mlzhai@pku.edu.cn

^b Institute of Chemical Defense, Beijing 100191, China

Abstract

We demonstrated a one-step synthesis method for a novel gel polymer electrolyte (named PDMP-Li GPE) based on 3-(dimethylamino) propyl methacrylate, poly(ethylene glycol) diacrylate and 1 M LiPF₆ liquid electrolyte solution by a γ-radiation technique for lithium-ion batteries. The resultant PDMP-Li GPE exhibited good thermal stability, excellent mechanical strength and high ionic conductivity, and the highest ionic conductivity reached 8.88 × 10⁻³ S cm⁻¹ at 25 °C. The LiFePO₄/PDMP-Li GPE/graphite pouch-type cell exhibited more than 97% columbic efficiency and the capacity retention was about 86% after 50 cycles at 0.1C. With these outstanding characteristics, it is expected to be a promising candidate for the application in polymer lithium-ion batteries.

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DOI: https://doi.org/10.1039/C7TA02291C
Article type: Paper
Submitted: 15 Mar 2017
Accepted: 15 May 2017
First published: 16 May 2017
This article is Open Access

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J. Mater. Chem. A, 2017,5, 12393-12399

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One-step radiation synthesis of gel polymer electrolytes with high ionic conductivity for lithium-ion batteries

Y. Wang, J. Qiu, J. Peng, J. Li and M. Zhai, J. Mater. Chem. A, 2017, 5, 12393 DOI: 10.1039/C7TA02291C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Journal of Materials Chemistry A

One-step radiation synthesis of gel polymer electrolytes with high ionic conductivity for lithium-ion batteries†

Abstract

Supplementary files

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One-step radiation synthesis of gel polymer electrolytes with high ionic conductivity for lithium-ion batteries

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