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US 2015/0086860 A1Published application
Power storage device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsRie YOKOI, Jun ISHIKAWA, Teppei OGUNI, Kai KIMURA, Satoshi SEO, Tamae MORIWAKA
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Abstract
A power storage device with reduced initial irreversible capacity is provided. The power storage device includes a positive electrode, a negative electrode, and an electrolyte solution. The negative electrode includes a negative electrode active material and a water-soluble polymer. The electrolyte solution includes an ionic liquid. The ionic liquid includes a cation and a monovalent amide anion.
Claims17
A power storage device comprising:
- a positive electrode;
- a negative electrode comprising a negative electrode active material and a water-soluble polymer;
- and
- an electrolyte solution comprising an ionic liquid between the positive electrode and the negative electrode,
- wherein the ionic liquid comprises a cation and a monovalent amide anion.
2 more elements
A power storage device comprising:
- a positive electrode;
- a negative electrode comprising a negative electrode active material, a first material, and a second material;
- and
- an electrolyte solution comprising an ionic liquid between the positive electrode and the negative electrode,
- wherein the first material comprises a material having rubber elasticity,
- wherein the second material comprises a water-soluble polymer, and
- wherein the ionic liquid comprises a cation and a monovalent amide anion.
4 more elements
Dependencies are inferred from the claim text.