Electrolytic solution for lithium-ion secondary battery and lithium-ion secondary battery

Patent metadata

Field	Value
Publication number	US-11916196-B2
Application number	US-202117203075-A
Country	US
Kind code	B2
Filing date	Mar 16, 2021
Priority date	Sep 27, 2018
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The electrolytic solution includes a solvent, an electrolyte salt, and an aminoanthraquinone polymer compound. The aminoanthraquinone polymer compound includes a divalent maleic anhydride part and a divalent aminoanthraquinone derivative part.

First claim

The invention claimed is:

1. A lithium-ion secondary battery comprising:
a positive electrode;
a negative electrode; and
an electrolytic solution that includes a solvent, an electrolyte salt, and an aminoanthraquinone polymer compound,
wherein the aminoanthraquinone polymer compound includes a divalent maleic anhydride part represented by Formula (1) and a divalent aminoanthraquinone derivative part represented by Formula (2),

wherein
each of R1 and R2 includes one of a hydrogen group, a halogen group, a monovalent hydrocarbon group, and a monovalent halogenated hydrocarbon group, and
each of two bonds to which * is attached represents a dangling bond,

wherein
each of R3 to R11 includes one of a hydrogen group, a halogen group, a monovalent hydrocarbon group, and a monovalent halogenated hydrocarbon group, and
each of two bonds to which * is attached represents a dangling bond.

2. The lithium-ion secondary battery according to claim 1 , wherein the aminoanthraquinone polymer compound is represented by Formula (3),

wherein
each of R12 to R24 includes one of a hydrogen group, a halogen group, a monovalent hydrocarbon group, and a monovalent halogenated hydrocarbon group,
each of X1 and X2 includes one of a divalent hydrocarbon group and a divalent halogenated hydrocarbon group, and
each of n1 to n4 is an integer of 1 or greater.

3. The lithium-ion secondary battery according to claim 2 , wherein the aminoanthraquinone polymer compound is represented by Formula (4),

wherein
each of R25 and R26 includes one of a hydrogen group, a halogen group, a monovalent hydrocarbon group, and a monovalent halogenated hydrocarbon group, and
each of n5 to n8 is an integer of 1 or greater.

4. The lithium-ion secondary battery according to claim 1 , wherein a content of the aminoanthraquinone polymer compound in the electrolytic solution is from 0.1 weight percent to 10 weight percent.

5. The lithium-ion secondary battery according to claim 2 , wherein a content of the aminoanthraquinone polymer compound in the electrolytic solution is from 0.1 weight percent to 10 weight percent.

6. The lithium-ion secondary battery according to claim 3 , wherein a content of the aminoanthraquinone polymer compound in the electrolytic solution is from 0.1 weight percent to 10 weight percent.

7. The lithium-ion secondary battery according to claim 1 , wherein
the positive electrode includes a lithium manganese iron phosphate compound, and
the negative electrode includes at least one of a titanium oxide, a lithium-titanium composite oxide, a hydrogen-titanium compound, a lithium-niobium composite oxide, a hydrogen-niobium compound, and a titanium-niobium composite oxide.

8. The lithium-ion secondary battery according to claim 2 , wherein
the positive electrode includes a lithium manganese iron phosphate compound, and
the negative electrode includes at least one of a titanium oxide, a lithium-titanium composite oxide, a hydrogen-titanium compound, a lithium-niobium composite oxide, a hydrogen-niobium compound, and a titanium-niobium composite oxide.

9. The lithium-ion secondary battery according to claim 3 , wherein
the positive electrode includes a lithium manganese iron phosphate compound, and
the negative electrode includes at least one of a titanium oxide, a lithium-titanium composite oxide, a hydrogen-titanium compound, a lithium-niobium composite oxide, a hydrogen-niobium compound, and a titanium-niobium composite oxide.

10. The lithium-ion secondary battery according to claim 4 , wherein
the positive electrode includes a lithium manganese iron phosphate compound, and
the negative electrode includes at least one of a titanium oxide, a lithium-titanium composite oxide, a hydrogen-titanium compound, a lithium-niobium composite oxide, a hydrogen-niobium compound, and a titanium-niobium composite oxide.

11. An electrolytic solution for a lithium-ion secondary battery, the electrolytic solution comprising:
a solvent;
an electrolyte salt; and
an aminoanthraquinone polymer compound including a divalent maleic anhydride part represented by Formula (1) and a divalent aminoanthraquinone derivative part represented by Formula (2),

wherein
each of R1 and R2 includes one of a hydrogen group, a halogen group, a monovalent hydrocarbon group, and a monovalent halogenated hydrocarbon group, and
each of two bonds to which * is attached represents a dangling bond,

wherein
each of R3 to R11 includes one of a hydrogen group, a halogen group, a monovalent hydrocarbon group, and a monovalent halogenated hydrocarbon group, and
each of two bonds to which * is attached represents a dangling bond.

Assignees

• Murata Manufacturing Co
• Hydro Quebec

Inventors

• Asakawa Yuichiro
• Ueno Hiroshi
• Uesaka Shinichi
• Daigle Jean-Christophe
• Beaupre Melanie
• Zaghib Karim

Classifications

• H01M10/0567 Primary

  characterised by the additives · CPC title

• H01M4/58

  of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates · CPC title

• H01M10/0525 Primary

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M10/0568

  characterised by the solutes · CPC title

• H01M10/0569

  characterised by the solvents · CPC title