Solid State Ionics, volume 315, pages 7-13

Graphene oxide as a filler to improve the performance of PAN-LiClO4 flexible solid polymer electrolyte

Publication typeJournal Article
Publication date2018-02-01
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor3.2
ISSN01672738
General Chemistry
Condensed Matter Physics
General Materials Science
Abstract
Solid polymer electrolytes (SPEs) show structural flexibility and safety to meet the requirements of lithium battery applications. However, SPEs usually have a low ionic conductivity at room temperature. In this study, in order to improve the ionic conductivity, we add graphene oxide (GO) as a nano-filler into LiClO4-polyacrylonitrile (PAN) type SPEs with various weight percentages. The ionic conductivity of the composite SPE containing 1.0 wt% GO has reached 4.0 × 10− 4 S cm− 1 at 30 °C, which is one order of magnitude higher than the bare one (2.2 × 10− 5 S cm− 1 at 30 °C). Meanwhile, the activation energy has reduced from 2.31 to 1.03 eV and the tensile modulus has increased from 37 to 80 MPa. This improvement is mainly ascribed to the functional groups ( OH, COOH, C O, COC, et al.) in GO that can alleviate the polarity of “ C N:”, which makes the polymer softer and facilitates the dissociation of LiClO4 in PAN matrix. Moreover, the LiFePO4 (LFP) cell with 1.0 wt% GO-SPE as electrolyte shows a satisfactory average discharge capacity of 166 mAh g− 1 at 0.2C, which is better than the performance in the GO-free type cell (136 mAh g− 1).

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Jia W. et al. Graphene oxide as a filler to improve the performance of PAN-LiClO4 flexible solid polymer electrolyte // Solid State Ionics. 2018. Vol. 315. pp. 7-13.
GOST all authors (up to 50) Copy
Jia W., Li Z., Wu Z., Liu X., Wu B., Wang Y. H., Cao Ya., Li J. Graphene oxide as a filler to improve the performance of PAN-LiClO4 flexible solid polymer electrolyte // Solid State Ionics. 2018. Vol. 315. pp. 7-13.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.ssi.2017.11.026
UR - https://doi.org/10.1016/j.ssi.2017.11.026
TI - Graphene oxide as a filler to improve the performance of PAN-LiClO4 flexible solid polymer electrolyte
T2 - Solid State Ionics
AU - Jia, Weishang
AU - Li, Zhiling
AU - Wu, Zhenrui
AU - Liu, Xuemei
AU - Wu, Bo
AU - Wang, Y. H.
AU - Cao, Ya
AU - Li, Jingze
PY - 2018
DA - 2018/02/01 00:00:00
PB - Elsevier
SP - 7-13
VL - 315
SN - 0167-2738
ER -
BibTex
Cite this
BibTex Copy
@article{2018_Jia,
author = {Weishang Jia and Zhiling Li and Zhenrui Wu and Xuemei Liu and Bo Wu and Y. H. Wang and Ya Cao and Jingze Li},
title = {Graphene oxide as a filler to improve the performance of PAN-LiClO4 flexible solid polymer electrolyte},
journal = {Solid State Ionics},
year = {2018},
volume = {315},
publisher = {Elsevier},
month = {feb},
url = {https://doi.org/10.1016/j.ssi.2017.11.026},
pages = {7--13},
doi = {10.1016/j.ssi.2017.11.026}
}
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