Hydrofluoroether compound, nonaqueous electrolyte solution and lithium ion secondary battery
AssigneeNEC Corporation
InventorKatsumi Maeda
Life of this patent
Estimating the term…
Abstract
A nonaqueous electrolyte solution including a hydrofluoroether compound represented by the following formula (1): [Formula 1] CF3CF2CF2OCHFCF2OR1 (1) wherein R1 represents a difluoromethyl group, a 2,2-difluoroethyl group, a 2,2,2-trifluoroethyl group, a 2,2,3,3,3-pentafluoropropyl group, a 2,2,3,3-tetrafluoropropyl group, a 1,1,1,3,3,3-hexafluoroisopropyl group, a 2,2,3,3,4,4,4-heptafluorobutyl group, a 2,2,3,3,4,4-hexafluorobutyl group, or a 2,2,3,3,4,4,5,5-octafluoropentyl group.
Claims12
A nonaqueous electrolyte solution for a lithium ion secondary battery, comprising:
- an electrolytic salt;
- and
- a hydrofluoroether compound represented by the following formula (1):
- [Formula 1]
- CF3CF2CF2OCHFCF2OR1 (1)
- wherein R1 represents a difluoromethyl group, a 2,2-difluoroethyl group, a 2,2,2-trifluoroethyl group, a 2,2,3,3,3-pentafluoropropyl group, a 2,2,3,3-tetrafluoropropyl group, a 1,1,1,3,3,3-hexafluoroisopropyl group, a 2,2,3,3,4,4,4-heptafluorobutyl group, a 2,2,3,3,4,4-hexafluorobutyl group, or a 2,2,3,3,4,4,5,5-octafluoropentyl group.
A hydrofluoroether compound, represented by the following formula (1):
- [Formula 4]
- CF3CF2CF2OCHFCF2OR1 (1)
- wherein R1 represents a difluoromethyl group, a 2,2-difluoroethyl group, a 2,2,3,3,3-pentafluoropropyl group, a 2,2,3,3-tetrafluoropropyl group, a 1,1,1,3,3,3-hexafluoroisopropyl group, a 2,2,3,3,4,4,4-heptafluorobutyl group, a 2,2,3,3,4,4-hexafluorobutyl group, or a 2,2,3,3,4,4,5,5-octafluoropentyl group.
Dependencies are inferred from the claim text.