# US 7,745,059 B2 · Fuel cells cartridge and electric apparatus having built-in fuel cell

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- Number: US 7,745,059 B2
- Document ID: US7745059B2
- Status: Granted
- Kind: B2
- Application number: 10/998,640
- Filed: 2004-11-30
- Published: 2005-06-09
- Granted: 2010-06-29
- Earliest claimed: 2003-12-04
- Assignees: Canon Kabushiki Kaisha
- Inventors: Shoji Ihara
- Web page: https://patentgrep.com/patent/US7745059B2

## CPC

- H01M 8/04208: {Cartridges, cryogenic media or cryogenic reservoirs}
- H01M 8/04014: Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
- H01M 8/04156: {with product water removal}
- H01M 8/2475: Enclosures, casings or containers of fuel cell stacks
- Y02E 60/50: Fuel cells
- 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

## Abstract

The fuel cell cartridge including: an external casing; a fuel cell body (stack), which is accommodated in the external casing and which includes at least a fuel electrode, an oxidizer electrode, and an ion conductor; and a fuel tank for storing a fuel, wherein the external casing has a penetration hole, which penetrates an inner portion of the external casing and which is in communication with outside air, and wherein an inner wall of the penetration hole is provided with at least an opening communicating with the oxidizer electrode. The fuel cell cartridge is detachably attached to an electric apparatus, and an inlet of the penetration hole of the fuel cell cartridge is situated at a position corresponding to an outside-air communicating port, which is provided in the electric apparatus and which is in communication with outside air.

## Claims

### Claim 1

A fuel cell cartridge comprising:
an external casing;
a fuel cell body, which is accommodated in the external casing and which comprises at least a fuel electrode, an oxidizer electrode, and an ion conductor; and
a fuel tank storing a fuel,
wherein the external casing has a penetration hole in communication with the outside air,
wherein the penetration hole penetrates the external casing from its one end to its other end opposite the one end such that the outside air can flow from the one end to the other end through the external casing along a straight line, and
wherein an inner wall of the penetration hole is provided with at least an opening communicating with all oxidizer electrodes in the fuel cell cartridge.

### Claim 2 (depends on 1)

A fuel cell cartridge according to claim 1, wherein the fuel cell cartridge is detachably attached to the electric apparatus, and an inlet of the penetration hole of the fuel cell cartridge is situated at a position corresponding to an outside-air communicating port which is provided in the electric apparatus and which is in communication with outside air.

### Claim 3 (depends on 1)

A fuel cell cartridge according to claim 1, wherein the oxidizer electrode is disposed along the penetration hole while facing the opening provided in the inner wall of the penetration hole of the external casing.

### Claim 4 (depends on 1, 2, 3)

An electric apparatus using a fuel cell cartridge according to any one of claims 1 to 3 to be mounted therein, further comprising a fuel cell cartridge container for accommodating the fuel cell cartridge, wherein the fuel cell cartridge container has an outside-air communicating port communicating with outside air, and wherein the outside-air communicating port is situated at a position corresponding to the penetration hole provided in the external casing of the fuel cell cartridge.