DISPERSANT, DISPERSANT COMPOSITION, DISPERSION COMPOSITION FOR BATTERIES, ELECTRODE AND BATTERY

• US 20200131379A1
• Filed: 05/11/2018
• Published: 04/30/2020
• Est. Priority Date: 05/12/2017
• Status: Active Grant

• Current Assignee: Toyocolor Co.,Ltd. (artience Co. Ltd.), Toyo Ink SC Holdings Co., Ltd. (artience Co. Ltd.)
• Original Assignee: Toyo Ink SC Holdings Co., Ltd. (artience Co. Ltd.)
• Inventors: HIMIZU, Akio, AOTANI, Yu, KOSEKI, Atsushi, DEGUCHI, Naoki, MASUOKA, Tomoaki, HOSHINO, Tomohiko
• Granted Patent: US 11,352,511 B2
• Time in Patent Office: Days
• CPC Class Codes: C08K 3/041 Carbon nanotubes
• CPC Class Codes: C08K 5/3492 Triazines
• CPC Class Codes: C09D 101/02 Cellulose; Modified cellulose
• CPC Class Codes: C09D 101/286 substituted with acid radicals C09D101/282 takes precedence
• CPC Class Codes: C09D 127/16 Homopolymers or copolymers of vinylidene fluoride
• CPC Class Codes: C09D 129/04 Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
• CPC Class Codes: C09D 7/45 Anti-settling agents
• CPC Class Codes: C09D 7/63 organic
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/0567 characterised by the additives
• CPC Class Codes: H01M 2300/0017 Non-aqueous electrolytes
• CPC Class Codes: H01M 4/13 Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
• CPC Class Codes: H01M 4/133 Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• CPC Class Codes: H01M 4/62 Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• CPC Class Codes: H01M 4/667 in the form of layers, e.g. coatings
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

Provided are: a dispersant which has good dispersibility and reduces electronic resistance; and a battery having excellent characteristics, which uses this dispersant and is decreased in the ionic resistance and the reaction resistance. A dispersant contains a triazine derivative represented by general formula (1), and an amine or an inorganic base (in general formula (1), R¹ is as defined in the description).

Claims

1. A dispersant, comprising:

a triazine derivative represented by General Formula (1);

2. A The dispersant according to claim 1, wherein a content of the amine with respect to the triazine derivative is 0.1 to 5 molar equivalents.

3. A The dispersant according to claim 1, wherein a content of the amine with respect to the triazine derivative is 0.3 to 2 molar equivalents.

4. A The dispersant according to claim 1, wherein a content of the inorganic base with respect to the triazine derivative is 0.1 to 1 molar equivalent.

5. A dispersant composition, comprising:

the dispersant according to claim 1; and

a polymer dispersant.

6. The dispersant composition according to claim 5, wherein the polymer dispersant has a hydroxyl group.

7. The dispersant composition according to claim 5, wherein the polymer dispersant is a polyvinyl alcohol resin and/or a cellulose resin.

8. A dispersion composition, comprising:

the dispersant according to claim 1;

a carbon material; and

a solvent.

9. A dispersion composition, comprising:

the dispersant composition according to claim 5;

a carbon material; and

a solvent.

10. The dispersion composition according to claim 8, further comprising a binder.

11. A dispersion composition for batteries, comprising the dispersion composition according to claim 8;

and

further comprising an active material.

12. The dispersion composition for batteries according to claim 11, wherein a content of a dispersant containing a triazine derivative, and an amine or an inorganic base is 0.1 to 200 mg with respect to a 1 m² surface area of the active material.

13. An electrode comprising a mixture layer formed from the dispersion composition for batteries according to claim 11 on a current collector.

14. A battery, comprising:

the electrode according to claim 13; and

a non-aqueous electrolyte solution.

15. The battery according to claim 14, wherein a content of a dispersant containing a triazine derivative, and an amine or an inorganic base is 10 μ

g to 60 mg with respect to 1 ml of the non-aqueous electrolyte solution.