# US 2010/0167158 A1 · Method for producing a solid fuel for fuel cells, solid fuel for fuel cells, and fuel cell

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- Number: US 2010/0167158 A1
- Document ID: US20100167158A1
- Status: Published application
- Kind: A1
- Application number: 12/451,758
- Filed: 2008-06-04
- Published: 2010-07-01
- Earliest claimed: 2007-06-04
- Assignees: Kurita Water Industries Ltd.
- Inventors: Koichi Mori
- Web page: https://patentgrep.com/patent/US20100167158A1

## CPC

- H01M 8/04082: Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M 8/04216: {characterised by the choice for a specific material, e.g. carbon, hydride, absorbent}
- H01M 8/0643: {Gasification of solid fuel}
- H01M 8/1007: with both reactants being gaseous or vaporised (H01M8/12 takes precedence)
- H01M 8/1009: with one of the reactants being liquid, solid or liquid-charged (H01M8/12 takes precedence)
- Y02E 60/50: Fuel cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

An object of the present invention is to provide a method for producing a highly safe solid fuel for fuel cells having excellent handleability, a highly safe solid fuel for fuel cells having excellent handleability, and a fuel cell using such a solid fuel for fuel cells. In a method for producing a solid fuel for fuel cells in which a coating film is formed on the surface of a porous material containing a fuel for fuel cells, the coating film is formed by polyvinyl alcohol, and the fuel for fuel cells is introduced into the porous material before and/or after formation of the coating film on the surface of the porous material.

## Claims

### Claim 1

A method for producing a solid fuel for fuel cells in which a coating film is formed on the surface of a porous material containing a fuel for fuel cells,
wherein said coating film is formed by polyvinyl alcohol, and
said fuel for fuel cells is introduced into said porous material before and/or after formation of said coating film on the surface of said porous material.

### Claim 2 (depends on 1)

The method for producing a solid fuel for fuel cells according to claim 1, wherein said fuel for fuel cells is an alcohol.

### Claim 3 (depends on 2)

The method for producing a solid fuel for fuel cells according to claim 2, wherein said alcohol is methanol.

### Claim 4 (depends on 1)

The method for producing a solid fuel for fuel cells according to claim 1, wherein said porous material is magnesium aluminometasilicate.

### Claim 5

A solid fuel for fuel cells, wherein a coating film comprising polyvinyl alcohol is formed on the surface of a porous material containing a fuel for fuel cells.

### Claim 6 (depends on 5)

The solid fuel for fuel cells according to claim 5, wherein said fuel for fuel cells is an alcohol.

### Claim 7 (depends on 6)

The solid fuel for fuel cells according to claim 6, wherein said alcohol is methanol.

### Claim 8 (depends on 5)

The solid fuel for fuel cells according to claim 5, wherein said porous material is magnesium aluminometasilicate.

### Claim 9 (depends on 5)

A fuel cell, comprising means for extracting a fuel for fuel cells from the solid fuel for fuel cells according to claim 5.

### Claim 10 (depends on 9)

The fuel cell according to claim 9, wherein said extraction means is means for bringing said solid fuel for fuel cells into contact with water.

### Claim 11 (depends on 9)

The fuel cell according to claim 9, wherein said extraction means is means for heating said solid fuel for fuel cells.

### Claim 12 (depends on 9)

An electronic device, comprising the fuel cell according to claim 9.