# US 2010/0167104 A1 · Fuel cell and integrated anode flow board thereof

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- Number: US 2010/0167104 A1
- Document ID: US20100167104A1
- Status: Published application
- Kind: A1
- Application number: 12/358,105
- Filed: 2009-01-22
- Published: 2010-07-01
- Earliest claimed: 2008-12-26
- Assignees: Nan Ya Pcb Corp.
- Inventors: Ming-Chou Tsai; Chi-Yang Chiu; Chiang-Wen Lai; Ching-Sen Yang; Wei-Kai Chang
- Web page: https://patentgrep.com/patent/US20100167104A1

## CPC

- H01M 8/0247: characterised by the form (characterised by a channel configuration H01M8/0258)
- H01M 8/0254: corrugated or undulated
- H01M 8/0258: characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M 8/0271: Sealing or supporting means around electrodes, matrices or membranes
- H01M 8/241: with solid or matrix-supported electrolytes
- H01M 8/2465: Details of groupings of fuel cells
- 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

A fuel cell includes a cathode board, a membrane electrode assembly, and an integrated anode flow board. The membrane electrode assembly contacts the cathode board. The integrated anode flow board includes an anode flow board and a current collector combined together. The current collector includes a raised portion abutting the membrane electrode assembly.

## Claims

### Claim 1

A fuel cell, comprising:
a cathode board;
a membrane electrode assembly contacting the cathode board; and
an integrated anode flow board including an anode flow board and a current collector combined together, wherein the current collector includes a raised portion abutting the membrane electrode assembly.

### Claim 2 (depends on 1)

The fuel cell as claimed in claim 1, wherein the anode flow board includes a plurality of bars supporting the raised portion of the current collector.

### Claim 3 (depends on 2)

The fuel cell as claimed in claim 2, wherein the bars have a plurality of bumps abutting the raised portion, and the bumps are thicker at a center of the anode flow board and thinner on both sides of the anode flow board to match a configuration of the raised portion of the current collector.

### Claim 4 (depends on 2)

The fuel cell as claimed in claim 2, wherein the bars are parallel to each other and form a plurality of channels therebetween, allowing fuel to flow into the membrane electrode assembly.

### Claim 5

An integrated anode flow board, comprising:
an anode flow board; and
a current collector combined with the anode flow board, including a raised portion.

### Claim 6 (depends on 5)

The integrated anode flow board as claimed in claim 5, wherein the anode flow board includes a plurality of bars supporting the raised portion of the current collector.

### Claim 7 (depends on 6)

The integrated anode flow board claimed in claim 6, wherein the bars have a plurality of bumps abutting the raised portion, and the bumps are thicker at a center of the anode flow board and thinner on both sides of the anode flow board to match a configuration of the raised portion of the current collector.

### Claim 8 (depends on 6)

The integrated anode flow board as claimed in claim 6, wherein the bars are parallel to each other and form a plurality of channels therebetween, allowing fuel to flow into the membrane electrode assembly.

### Claim 9

A fuel cell, comprising:
a fuel cell module including a cathode board, a membrane electrode assembly, and an integrated anode flow board combined together; and
a first cathode flow board including a rib abutting the cathode board.

### Claim 10 (depends on 9)

The fuel cell as claimed in claim 9, further comprising an end plate which is curved, abuts the cathode flow board, and pushes the rib of the first cathode flow board toward the cathode board.

### Claim 11 (depends on 10)

The fuel cell as claimed in claim 10, wherein the end plate is made of spring steel.

### Claim 12 (depends on 10)

The fuel cell as claimed in claim 10, further comprising a threaded rod and a nut which connects the fuel cell module, the first cathode flow board, and the end plate together.

### Claim 13

A fuel cell, comprising:
a plurality of fuel cell modules, each of which include a cathode board, a membrane electrode assembly, and an integrated anode flow board combined together; and
a second cathode flow board interposed between the fuel cell modules, including a frame body and a plurality of ribs disposed on both sides of the frame body to abut the cathode board.

### Claim 14 (depends on 13)

The fuel cell as claimed in claim 13, further comprising a pair of first cathode flow boards, each of which include a rib abutting the cathode board, wherein the fuel cell modules are held by the first cathode flow boards.

### Claim 15 (depends on 14)

The fuel cell as claimed in claim 14, further comprising two end plates, wherein the first cathode flow boards are held by the end plates, and at least one end plate is curved, abuts the first cathode flow board corresponding thereto, and pushes the rib of the first cathode flow board toward the cathode board.

### Claim 16 (depends on 15)

The fuel cell as claimed in claim 15, wherein the end plates are made of spring steel.

### Claim 17 (depends on 15)

The fuel cell as claimed in claim 15, further comprising a threaded rod and a nut which connects the fuel cell modules, the first cathode flow boards, the second cathode flow board, and the end plates together.
