title: Nonflammable perfluoropolyether-based electrolytes for lithium batteries.
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.
authors: Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599.
authors: Dominica H C
authors: DH
authors: Wong
authors: Jacob L
authors: JL
authors: Thelen
authors: Yanbao
authors: Y
authors: Fu
authors: Didier
authors: D
authors: Devaux
authors: Ashish A
authors: AA
authors: Pandya
authors: Vincent S
authors: VS
authors: Battaglia
authors: Nitash P
authors: NP
authors: Balsara
authors: Joseph M
authors: JM
authors: DeSimone
mesh_terms: D011211:Electric Power Supplies; D004573:Electrolytes / Q000737:chemistry*; D004987:Ethers / Q000737:chemistry*; D005466:Fluorocarbons / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D013696:Temperature; D014186:Transportation
chemical_list: D004573:Electrolytes; D004987:Ethers; D005466:Fluorocarbons; C078113:perfluoropolyether; D008094:Lithium
keywords: fluorinated polymers; nonflammable electrolytes