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US 11,901,503 B2Granted
Composite electrolyte, secondary battery, battery pack, and vehicle
AssigneeKabushiki Kaisha Toshiba
InventorsNorio Takami, Takashi Kishi
Life of this patent
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Abstract
According to one embodiment, a composite electrolyte includes inorganic solid particles, an ionic liquid and 0.5 to 10% by weight of a fibrous polymer. The ionic liquid includes cations and anions. The fibrous polymer has an average fiber diameter of 1 to 100 nm.
Claims18
A composite electrolyte comprising:
- 30 to 60% by weight of inorganic solid particles;
- an ionic liquid including cations and anions;
- 0.5 to 10% by weight of a fibrous polymer having an average fiber diameter of 1 to 100 nm;
- and
- 5% by weight or less of an organic solvent,
- wherein the cations comprise trialkylsulfonium ion, and the fibrous polymer is cellulose fiber.
3 more elements
A composite electrolyte consisting of:
- 30 to 60% by weight of inorganic solid particles;
- an ionic liquid including cations and anions;
- and
- 0.5 to 10% by weight of a fibrous polymer having an average fiber diameter of 1 to 100 nm;
- wherein the cations comprise trialkylsulfonium ion, and the fibrous polymer is cellulose fiber.
2 more elements
Dependencies are inferred from the claim text.