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US 11,973,228 B2Granted
Non-aqueous electrolyte secondary battery
AssigneePrime Planet Energy & Solutions, Inc.
InventorAkira Kohyama
Life of this patent
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Abstract
A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and an electrolyte solution. The negative electrode includes a negative electrode composite material layer. The negative electrode composite material layer includes a negative electrode active material and a carbon nanotube. The electrolyte solution includes a solvent, a supporting electrolyte, and a cationic surfactant. The cationic surfactant includes a quaternary ammonium salt.
Claims5
A non-aqueous electrolyte secondary battery, comprising:
- a positive electrode;
- a negative electrode;
- and
- an electrolyte solution, wherein
- the negative electrode includes a negative electrode composite material layer,
- the negative electrode composite material layer includes
- a negative electrode active material and
- a carbon nanotube,
- the electrolyte solution includes
- a solvent,
- a supporting electrolyte, and
- a cationic surfactant,
- the cationic surfactant includes a quaternary ammonium salt, and
- the quaternary ammonium salt is represented by a formula (II):
- CH3(CH2)nN+(CH3)3.PF6− (II)
- where
- n represents an integer from 7 to 15, and
- the negative electrode active material includes an alloy-based negative electrode active material, wherein the alloy-based negative electrode active material includes at least one selected from the group consisting of Si, Sn, Al, Cd, Sb, and Pb.
15 more elements
A non-aqueous electrolyte secondary battery, comprising:
- a positive electrode;
- a negative electrode;
- and
- an electrolyte solution, wherein
- the negative electrode includes a negative electrode composite material layer,
- the negative electrode composite material layer includes a negative electrode active material and a carbon nanotube,
- the electrolyte solution includes a solvent, a supporting electrolyte, and a cationic surfactant,
- the cationic surfactant includes a quaternary ammonium salt,
- the negative electrode active material includes an alloy-based negative electrode active material,
- the alloy-based negative electrode active material includes at least one selected from the group consisting of Cd and Sb, and
- the quaternary ammonium salt is represented by a formula (II):
- CH3(CH2)nN+(CH3)3.PF6− (II)
- where
- n represents an integer from 5 to 15.
11 more elements
Dependencies are inferred from the claim text.