@article{LIANG2021, 
author = {Xinghua LIANG and Dongxue HUANG and Lingxiao LAN and Suo LI and Yujuan NING and Yu ZHANG and Penggui WU and Xiaofeng ZHANG},
title = {Preparation and performance of polymer/graphene composite solid electrolyte film},
year = {2021},
journal = {Journal of Advanced Manufacturing Science and Technology},
volume = {1},
number = {4},
pages = {2021011},
keywords = {polymer electrolyte, graphene, ionic conductivity, cycle stability, polyethylene oxide},
url = {https://www.sciopen.com/article/10.51393/j.jamst.2021011},
doi = {10.51393/j.jamst.2021011},
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.}
}