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US 2026/0188751 A1Published application
Composition, electrolyte solution, polymer electrolyte, electrochemical device, and fluoropolyether
AssigneeDaikin Industries, Ltd.
InventorsKentaro HIRAGA, Mayu Inoue, Takaya Yamada
Life of this patent
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Abstract
A composition capable of improving the high-temperature durability of electrochemical devices, an electrolyte solution, a polymer electrolyte, an electrochemical device, and a fluoropolyether. The disclosure relates to a composition containing: a salt; and at least one fluoropolyether represented by any of the following formulas (1) to (3).
Claims17
A composition comprising:
- a salt;
- and
- at least one fluoropolyether represented by any of the following formulas (1) to (3):
- wherein Ra1 to Ra3 are each independently a polyoxyalkylene group containing 4 to 50 fluorine-free oxyalkylene units;
- the oxyalkylene units in Ra1 to Ra3 are each independently —CH2CH2O— or —CH2CH(J)O—;
- each J is independently an alkyl group or an aryl group;
- Rb1 to Rb3 are each independently a fluoropolyether group represented by the following formula (4);
- R1 and R3 are each independently a fluorine atom, a C1-C3 alkyl group, an aryl group, a carboxylic acid group, or a C1-C3 fluoroalkyl group;
- and
- each R2 is independently a hydrogen atom, a hydroxy group, a fluorine atom, a C1-C3 alkyl group, an aryl group, a carboxylic acid group, or a C1-C3 fluoroalkyl group:
- wherein Rf1 and Rf2 are each independently a C1-C16 alkylene group optionally substituted with a fluorine atom, and
- Rf is a divalent fluoropolyether group.
9 more elements
A fluoropolyether represented by the following formula (2A):
- wherein Ra2 is a polyoxyalkylene group containing 4 to 50 fluorine-free oxyalkylene units;
- the oxyalkylene units in Ra2 are each independently-CH2CH2O— or —CH2CH(J)O—;
- each J is independently an alkyl group or an aryl group;
- each Rb2 is independently a fluoropolyether group represented by the following formula (4A);
- and
- each R2 is independently a hydrogen atom, a hydroxy group, a fluorine atom, a C1-C3 alkyl group, an aryl group, a carboxylic acid group, or a C1-C3 fluoroalkyl group:
- wherein Rf1 and Rf2 are each independently a C1-C16 alkylene group optionally substituted with a fluorine atom, and
- Rf is a divalent fluoropolyether group.
5 more elements
Dependencies are inferred from the claim text.