Journal
JOURNAL OF POWER SOURCES
Volume 241, Issue -, Pages 203-211Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2013.04.064
Keywords
Separator; Polyvinylidenefluoride-hexafluoropropylene; Expanded polytetrafluoroethylene; Thermal shutdown; Thermal shrinkage
Funding
- National Nature Science Foundation of China [51272200]
- Program for New Century Excellent Talents in University [NCET-12-0911]
- National High Technology Research and Development Program (863 Program) of China [2012AA053402]
Ask authors/readers for more resources
PVDF-HFP/ePTFE composite separator with high thermal stability and low thermal shrinkage characteristic has been developed. The PVDF-HFP acts to absorb the electrolyte and shutdown at elevated temperature. The thermally stable ePTFE matrix is adopted to improve the mechanical strength and sustain the insulation after the shutdown. This novel separator presents good ion conductivity (up to 1.29 mS cm(-1)) and has a low thermal shrinkage of 8.8% at 162 degrees C. The composite separator shutdown at 162 degrees C and keep its integrity before 329 degrees C. Cells based on the composite separator show excellent capacities at high rate discharge and stable cycling performance. (C) 2013 Elsevier B.V. All rights reserved.
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
Share Paper
