# US 9,520,612 B2 · Fuel cell

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- Number: US 9,520,612 B2
- Document ID: US9520612B2
- Status: Granted
- Kind: B2
- Application number: 15/027,306
- Filed: 2014-09-03
- Published: 2016-09-01
- Granted: 2016-12-13
- Earliest claimed: 2013-10-22
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Yasuyuki Sato; Hiroaki Takeuchi; Hitoshi Hamada
- Web page: https://patentgrep.com/patent/US9520612B2

## CPC

- H01M 8/248: Means for compression of the fuel cell stacks
- H01M 8/1004: characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence)
- H01M 8/1023: having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
- H01M 8/1039: halogenated, e.g. sulfonated polyvinylidene fluorides
- H01M 8/241: with solid or matrix-supported electrolytes
- H01M 8/2457: with both reactants being gaseous or vaporised
- H01M 8/2475: Enclosures, casings or containers of fuel cell stacks
- H01M 2008/1095: {Fuel cells with polymeric electrolytes}
- H01M 2250/20: Fuel cells in motive systems, e.g. vehicle, ship, plane
- H01M 2300/0082: Organic polymers
- Y02E 60/10: Energy storage using batteries
- Y02E 60/50: Fuel cells
- Y02T 90/40: Application of hydrogen technology to transportation, e.g. using 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
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

There is provided a fuel cell. The fuel cell comprises a stacked body that has a stacked configuration by stacking a plurality of single fuel cells; a fastening support member that is extended along a stacking direction of the plurality of single fuel cells and is configured to fasten the stacked body in the stacking direction; and an impact transmission member that is configured to include a dilatant fluid and is placed between the stacked body and the fastening support member to be arranged in a location corresponding to multiple consecutive single fuel cells along the stacking direction among the plurality of single fuel cells.

## Claims

### Claim 1

A fuel cell, comprising:
a stacked body that has a stacked configuration by stacking a plurality of single fuel cells;
a fastening support member that is extended along a stacking direction of the plurality of single fuel cells, is configured to fasten the stacked body in the stacking direction and includes an outer cover that is configured to cover at least part of a side face of the stacked body along the stacking direction; and
an impact transmission member that is configured to include a dilatant fluid and is placed between the stacked body and the fastening support member to be arranged in a location corresponding to multiple consecutive single fuel cells along the stacking direction among the plurality of single fuel cells, wherein
the impact transmission member includes:
a impact support film that is configured to continuously cover a bottom face of the stacked body and at least a vertically lower portion on the two side face of the stacked body in the state that the fuel cell is mounted such that the stacking direction is identical with horizontal direction; and
the dilatant fluid that is placed in a space between the impact support film and a inner surface of the outer cover, and
an upward ends of the impact support film that are configured to be free ends and that form an opening to the space in the state that the fuel cell is mounted such that the stacking direction is identical with horizontal direction.

### Claim 2 (depends on 1)

The fuel cell according to claim 1, further comprising
an impact protection member that is placed between the impact transmission member and the stacked body.

### Claim 3 (depends on 1)

The fuel cell according to claim 1, wherein
the impact transmission member is placed in a location corresponding to multiple single fuel cells constituting a middle portion of the stacked body along the stacking direction.