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Enhanced lithium-ion transport in organosilyl electrolytes for lithium-ion battery applications
- Source :
- MRS Communications. 9:985-991
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- The authors report on 7Li, 19F, and 1H pulsed field gradient NMR measurements of 26 organosilyl nitrile solvent-based electrolytes of either lithium bis(trifluorosulfonyl)imide (LiTFSI) or lithium hexafluorophosphate. Lithium transport numbers (as high as 0.50) were measured and are highest in the LiTFSI electrolytes. The authors also report on solvent blend electrolytes of fluoroorganosilyl (FOS) nitrile solvent mixed with ethylene carbonate (EC) and diethyl carbonate. Solvent diffusion measurements on an electrolyte with 6% FOS suggest both the FOS and EC solvate the lithium cation. By comparing lithium transport and transference numbers, The authors find less ion pairing in FOS nitrile carbonate blend electrolytes and difluoroorganosilyl nitrile electrolytes.
- Subjects :
- Materials science
Nitrile
Inorganic chemistry
Diethyl carbonate
chemistry.chemical_element
02 engineering and technology
Lithium hexafluorophosphate
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Lithium-ion battery
0104 chemical sciences
Lithium ion transport
chemistry.chemical_compound
chemistry
General Materials Science
Lithium
0210 nano-technology
Lithium Cation
Ethylene carbonate
Subjects
Details
- ISSN :
- 21596867 and 21596859
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- MRS Communications
- Accession number :
- edsair.doi...........d0d2d9a416176fce51350c1b06f459f8