Preparation and performance of polymer/graphene composite solid electrolyte film

Xinghua LIANG; Dongxue HUANG; Lingxiao LAN; Suo LI; Yujuan NING; Yu ZHANG; Penggui WU; Xiaofeng ZHANG

doi:10.51393/j.jamst.2021011

Volume 1 Issue 4

Dec. 2021

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Xinghua LIANG, Dongxue HUANG, Lingxiao LAN, Suo LI, Yujuan NING, Yu ZHANG, Penggui WU, Xiaofeng ZHANG. Preparation and performance of polymer/graphene composite solid electrolyte film[J]. Journal of Advanced Manufacturing Science and Technology , 2021, 1(4): 2021011. doi: 10.51393/j.jamst.2021011

Citation:

Xinghua LIANG, Dongxue HUANG, Lingxiao LAN, Suo LI, Yujuan NING, Yu ZHANG, Penggui WU, Xiaofeng ZHANG. Preparation and performance of polymer/graphene composite solid electrolyte film[J]. Journal of Advanced Manufacturing Science and Technology , 2021, 1(4): 2021011. doi: 10.51393/j.jamst.2021011

Citation:

Xinghua LIANG, Dongxue HUANG, Lingxiao LAN, Suo LI, Yujuan NING, Yu ZHANG, Penggui WU, Xiaofeng ZHANG. Preparation and performance of polymer/graphene composite solid electrolyte film[J]. Journal of Advanced Manufacturing Science and Technology , 2021, 1(4): 2021011. doi: 10.51393/j.jamst.2021011

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Preparation and performance of polymer/graphene composite solid electrolyte film

doi: 10.51393/j.jamst.2021011

a Guangxi Key Laboratory of Automobile Components and Vehicle Technology, Guangxi University of Science and Technology, Liuzhou 545006, China;
b National Engineering Laboratory for Modern Materials Surface Engineering Technology, Guangdong Institute of New Materials, Guangdong Academy of Science, Guangzhou, 510650, China

Funds:

This research was supported by the National Natural Science Foundation of China (No.52161033), Guangxi Natural Science Foundation (No. 2020GXNSFAA297082, 2019GXNSFBA245099) and (YCSW2021324), Guangxi Innovation Driven Development Project (No. AA18242036-2), and supported by the Guangxi Key Laboratory of Low Carbon Energy Material (2020GKLLCEM01).

Received Date: 2021-10-01
Accepted Date: 2021-12-02
Rev Recd Date: 2021-11-05
Publish Date: 2021-12-12

Abstract

Abstract

The polymer solid electrolyte has a simple preparation method, good film-forming performance, and good electrode-electrolyte interface contact. However, the low room temperature ionic conductivity, poor electrochemical stability, and the inability to match the cathode material with a wide voltage window limit the large-scale commercial application of polymer solid electrolytes; graphene has excellent mechanical, mechanical properties, photoelectric thermal properties and a large specific surface area, high ion conductivity and electron migration number, so it has strong electrical conductivity. In this paper, a typical polymer solid electrolyte polyethylene oxide (PEO) and graphene composite are selected to further enhance the electrochemical performance of the composite material. Experiments have found that the polymer/graphene composite solid electrolyte membrane with graphene added does not decompose significantly before 5 V, which clarifies that it has good electrochemical stability. And the first charge-discharge specific capacity of the composite solid electrolyte membrane is higher than that of the single polymer solid electrolyte membrane. Neither the diffraction peak nor the reduction peak shifted after 5 cycles, and the cycle life was still 99.449% after 100 cycles, indicating that it has good cycle stability. Therefore, the application of polymer/graphene composite solid electrolyte membranes in all-solid-state lithium batteries is feasible.
- polymer electrolyte,
- graphene,
- ionic conductivity,
- cycle stability,
- polyethylene oxide

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References(16)

References

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