Aluminum silicate composite, electroconductive material, electroconductive material for lithium ion secondary battery, composition for forming negative electrode for lithium ion secondary battery, composition for forming positive electrode for lithium ion secondary battery, negative electrode for lithium ion secondary battery, positive electrode for lithium ion secondary battery, and lithium ion secondary battery, composition for forming positive

Patent metadata

Field	Value
Publication number	US-2016141609-A1
Application number	US-201414897699-A
Country	US
Kind code	A1
Filing date	Jun 12, 2014
Priority date	Jun 12, 2013
Publication date	May 19, 2016
Grant date	—

Abstract

An aluminum silicate complex that comprises an aluminum silicate and carbon that is disposed on a surface of the aluminum silicate.

First claim

1 . An aluminum silicate complex that comprises an aluminum silicate and carbon that is disposed on a surface of the aluminum silicate.

2 . The aluminum silicate complex according to claim 1 , wherein a content of the carbon is from 0.1 mass % to 50 mass %.

3 . The aluminum silicate complex according to claim 1 , wherein an R value that is obtained from Raman spectrum analysis is from 0.1 to 5.0.

4 . The aluminum silicate complex according to claim 1 , wherein an element molar ratio Si/Al, of silicon (Si) to aluminum (Al), is from 0.1 to 500.

5 . An electroconductive material including an aluminum silicate complex that comprises an aluminum silicate and carbon that is disposed on a surface of the aluminum silicate.

6 . The electroconductive material according to claim 5 , wherein a content of the carbon in the aluminum silicate complex is from 0.1 mass % to 50 mass %.

7 . The electroconductive material according to claim 5 , wherein an R value that is obtained from Raman spectrum analysis of the aluminum silicate complex is from 0.1 to 5.0.

8 . The electroconductive material according to claim 5 , wherein a powder resistivity of the aluminum silicate complex is from 0.001 Ω·cm to 100 Ω·cm.

9 . The electroconductive material according to claim 5 wherein an element molar ratio Si/Al, of silicon (Si) to aluminum (Al), of the aluminum silicate complex is from 0.1 to 500.

10 . An electroconductive material for a lithium ion secondary battery, the electroconductive material comprising an aluminum silicate complex that comprises an aluminum silicate and carbon that is disposed on a surface of the aluminum silicate.

11 . The electroconductive material for a lithium ion secondary battery according to claim 10 , wherein a content of the carbon in the aluminum silicate complex is from 0.1 mass % to 50 mass %.

12 . The electroconductive material for a lithium ion secondary battery according to claim 10 , wherein an R value that is obtained from Raman spectrum analysis of the aluminum silicate complex is from 0.1 to 5.0.

13 . The electroconductive material for a lithium ion secondary battery according to claim 10 , wherein a powder resistivity of the aluminum silicate complex is from 0.001 Ω·cm to 100 Ω·cm.

14 . The electroconductive material for a lithium ion secondary battery according to claim 10 , wherein an element molar ratio Si/Al, of silicon (Si) to aluminum (Al), of the aluminum silicate complex is from 0.1 to 500.

15 . A composition for forming a negative electrode for a lithium ion secondary battery, the composition comprising the electroconductive material for a lithium ion secondary battery according to claim 10 , a negative electrode active material, and a binder.

16 . A composition for forming a positive electrode for a lithium ion secondary battery, the composition comprising the electroconductive material for a lithium ion secondary battery according to claim 10 , a positive electrode active material, and a binder.

17 . A negative electrode for a lithium ion secondary battery, the negative electrode comprising a current collector and a negative electrode layer that is disposed on the current collector, the negative electrode layer comprising the electroconductive material for a lithium ion secondary battery according to claim 10 and a negative electrode active material.

18 . A positive electrode for a lithium ion secondary battery, the positive electrode comprising a current collector and a positive electrode layer that is disposed on the current collector, the positive electrode layer comprising the electroconductive material for a lithium ion secondary battery according to claim 10 and a positive electrode active material.

19 . A lithium ion secondary battery that comprises the negative electrode for a lithium ion secondary battery according to claim 17 .

20 . A lithium ion secondary battery that comprises the positive electrode for a lithium ion secondary battery according to claim 18 .

Assignees

• Hitachi Chemical Co Ltd

Inventors

• Mikuni Hiroki
• KODATO Katsunori
• Ishii Yoshito

Classifications

• H01M10/0525

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

• H01M4/366 Primary

  as layered products · CPC title

• H01M4/583

  Carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title

• H01M4/5825

  Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title