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Cell voltage monitoring connector system for a fuel cell stack

A technology for fuel cell stacks and electrical connectors, which is applied to fuel cell components, fuel cells, fuel cell additives, etc., and can solve problems such as difficult application of fuel cell stacks

Active Publication Date: 2014-07-30
INTELLIGENT ENERGY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, a multi-way receptacle connector (ie, one connector that engages many tabs simultaneously) may be difficult to apply in a fuel cell stack

Method used

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  • Cell voltage monitoring connector system for a fuel cell stack
  • Cell voltage monitoring connector system for a fuel cell stack
  • Cell voltage monitoring connector system for a fuel cell stack

Examples

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Embodiment Construction

[0022] For clarity, figure 2 A schematic diagram showing the components of a fuel cell of an open top cathode fuel cell stack in exploded form. Each cell 20 includes an anode flow plate 2 an anode gasket 2 membrane electrode assembly (MEA) 24 , a cathode gasket 25 and a cathode flow plate 27 . Anode gasket 23 provides a fluid seal between anode flow plate 21 and MEA 24 and defines a frame around anode diffuser 22 . Similarly, cathode gasket 25 provides a fluid seal between cathode flow plate 27 and MEA 24 and defines a frame around cathode diffuser 26 . exist figure 2 In a specific arrangement of , the cathode flow plate is provided as a corrugated cathode separator plate 27, and a pair of manifold gaskets 28a, 28b are provided at each end, respectively.

[0023] In other configurations, the fuel cell may be a closed cathode system, for example where the cathode flow plate may be a flat plate with channels extending in the surface of the plate. In other configurations, t...

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Abstract

An electrical connection system for cell voltage monitoring in a fuel cell stack. The fuel cell stack comprises a plurality of layers and a plurality of electrically conductive connection tabs extending outwardly from at least one face of the stack. The electrically conductive connection tabs are each formed as a laterally extending free portion of a flexible sealing gasket. Other portions of the gasket are disposed to provide sealing engagement between at least two layers of the fuel cell stack. By using the gasket material to form such electrical connection tabs, rather than flow plates, the connection tabs are made flexible to make it easier to connect to standard arrays of connectors in connector assemblies.

Description

technical field [0001] The present invention relates to an electrical connector system for use in a fuel cell stack for making electrical connections to a plurality of individual cells within the fuel cell stack. Background technique [0002] Conventional electrochemical fuel cells convert fuel and oxidant into electricity and heat and reaction products. A typical fuel cell includes a membrane electrode assembly (MEA) sandwiched between an anode flow field plate and a cathode flow field plate. A gas diffusion layer may be disposed between each flow field plate and the MEA. Gaskets can be used to separate the various layers and provide the required seal. The flow field plate typically includes one or more channels extending on the surface of the plate adjacent the MEA for transporting liquid fuel or oxidant to the active surface of the MEA. [0003] In a conventional fuel cell stack, multiple cells are stacked such that the anode flow field plate of one cell is adjacent to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02H01M8/24H01M8/04
CPCH01M8/0271H01M8/0273H01M8/04552H01M8/242H01M8/0276Y02E60/50H01M8/02H01M8/0258H01M8/2483
Inventor 哈里·约翰·卡尔曼森约翰·弗雷德里克·克拉克理查德·艾伯特·罗艾特马克·卢埃林·琼斯
Owner INTELLIGENT ENERGY LTD