Journal
CHEMISTRYSELECT
Volume 3, Issue 47, Pages 13365-13371Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.201802794
Keywords
electrospinning; lithium-ion batteries; nanofiber membrane; thermal stability; wettability
Categories
Funding
- Natural Science Foundation of Guangdong Province (China) [2016 A030313475]
- Dongguan Science and Technology Project (China) [201521510201]
- Project for Science and Technology of Guangdong Province (China) [2015B010135009]
Ask authors/readers for more resources
Covalently-bonded poly(vinyl alcohol)-silica (PVA-SiO2) composite nanofiber membranes are fabricated via sol-gel electrospinning and their physical and electrochemical properties are investigated for application as separators in lithium-ion batteries (LIBs). Experimental results demonstrate the PVA-SiO2 membranes possess a unique three-dimensional interconnected porous structure and display higher porosity (73%), better electrolyte affinity, higher electrolyte uptake (405%) and lower thermal shrinkage compared to commercial polypropylene (PP) membranes. In addition, batteries using PVA-SiO2 composite nanofiber membranes as separators exhibit enhanced ionic conductivity (1.81 mS cm(-1)), superior cycling stability and C-rate performance than those using PP separators. These findings reveal that the PVA-SiO2 composite nanofiber membrane might be a promising alternative to commercial polyolefin separator for high performance LIBs.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available