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Nonflammable perfluoropolyether-based electrolytes for lithium batteries.
- Source :
-
Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2014 Mar 04; Vol. 111 (9), pp. 3327-31. Date of Electronic Publication: 2014 Feb 10. - Publication Year :
- 2014
-
Abstract
- The flammability of conventional alkyl carbonate electrolytes hinders the integration of large-scale lithium-ion batteries in transportation and grid storage applications. In this study, we have prepared a unique nonflammable electrolyte composed of low molecular weight perfluoropolyethers and bis(trifluoromethane)sulfonimide lithium salt. These electrolytes exhibit thermal stability beyond 200 °C and a remarkably high transference number of at least 0.91 (more than double that of conventional electrolytes). Li/LiNi1/3Co1/3Mn1/3O2 cells made with this electrolyte show good performance in galvanostatic cycling, confirming their potential as rechargeable lithium batteries with enhanced safety and longevity.
Details
- Language :
- English
- ISSN :
- 1091-6490
- Volume :
- 111
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Proceedings of the National Academy of Sciences of the United States of America
- Publication Type :
- Academic Journal
- Accession number :
- 24516123
- Full Text :
- https://doi.org/10.1073/pnas.1314615111