Honeycomb-like porous gel polymer electrolyte membrane for lithium ion batteries with enhanced safety

Zhang, Jinqiang, Sun, Bing, Huang, Xiaodan, Chen, Shuangqiang and Wang, Guoxiu (2014) Honeycomb-like porous gel polymer electrolyte membrane for lithium ion batteries with enhanced safety. Scientific Reports, 4 . doi:10.1038/srep06007


Author Zhang, Jinqiang
Sun, Bing
Huang, Xiaodan
Chen, Shuangqiang
Wang, Guoxiu
Title Honeycomb-like porous gel polymer electrolyte membrane for lithium ion batteries with enhanced safety
Journal name Scientific Reports   Check publisher's open access policy
ISSN 2045-2322
Publication date 2014-08-29
Sub-type Article (original research)
DOI 10.1038/srep06007
Open Access Status DOI
Volume 4
Total pages 7
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Language eng
Formatted abstract
Lithium ion batteries have shown great potential in applications as power sources for electric vehicles and large-scale energy storage. However, the direct uses of flammable organic liquid electrolyte with commercial separator induce serious safety problems including the risk of fire and explosion. Herein, we report the development of poly(vinylidene difluoride-co-hexafluoropropylene) polymer membranes with multi-sized honeycomb-like porous architectures. The as-prepared polymer electrolyte membranes contain porosity as high as 78%, which leads to the high electrolyte uptake of 86.2 wt%. The PVDF-HFP gel polymer electrolyte membranes exhibited a high ionic conductivity of 1.03 mS cm-1 at room temperature, which is much higher than that of commercial polymer membranes. Moreover, the as-obtained gel polymer membranes are also thermally stable up to 3506C and non-combustible in fire (fire-proof). When applied in lithium ion batteries with LiFePO4 as cathode materials, the gel polymer electrolyte demonstrated excellent electrochemical performances. This investigation indicates that PVDF-HFP gel polymer membranes could be potentially applicable for high power lithium ion batteries with the features of high safety, low cost and good performance.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Australian Institute for Bioengineering and Nanotechnology Publications
 
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