Nonflammable perfluoropolyether-based electrolytes for lithium batteries
Date Published |
03/2014
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Publication Type | Journal Article
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Authors | |
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DOI |
10.1073/pnas.1314615111
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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. |
Journal |
Proceedings of the National Academy of Sciences
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Volume |
111
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Year of Publication |
2014
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Issue |
9
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Pagination |
3327 - 3331
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ISSN Number |
0027-8424
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Short Title |
Proceedings of the National Academy of Sciences
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Keywords | |
Organizations | |
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