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Interconnector arrangement and method for producing a contact arrangement for a fuel cell stack

A fuel cell stack and internal connection technology, used in fuel cell components, fuel cells, fuel cell additives, etc., can solve problems such as system attenuation and loss of electrical contact

Inactive Publication Date: 2010-03-03
圣火有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the fuel cell stack is supported in the edge region and in the manifold by using solid material, for example by spacers, material creep in the active area of ​​the fuel cell stack can lead to a loss of electrical contact between the individual fuel cells and thus to the overall system attenuation

Method used

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  • Interconnector arrangement and method for producing a contact arrangement for a fuel cell stack
  • Interconnector arrangement and method for producing a contact arrangement for a fuel cell stack

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Embodiment Construction

[0019] figure 1 A diagram of an interconnection device 10 according to the invention in a fuel cell stack 34 is shown. To simplify the description below, only three electrolyte membrane structures 52 and two interconnections are shown. However, the fuel cell stack 34 may include any number of electrolyte membrane structures 52 having internal connection means 10 connecting them. In the case shown, the interconnection device 10 according to the invention is arranged between two electrolyte membrane structures 52 each comprising at least one anode 12 , one electrolyte 14 and one cathode 16 . Furthermore, each electrolyte membrane structure 52 and an interconnection device 10 in contact with the anode 12 of the electrolyte membrane structure 52 constitute a repeating unit of the fuel cell stack.

[0020] The internal connection device 10 includes an upper housing portion 22 and a lower housing portion 26 . The upper housing part 22 is connected via a glass-ceramic seal 20 to t...

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PUM

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Abstract

The invention relates to an interconnector arrangement (10) for a fuel cell stack (34), which arrangement can be brought into electrical contact with at least one membrane electrode assembly (52) of the fuel cell stack (34). The invention is characterized in that the interconnector arrangement (10) comprises a nickel foam (28) which is interposed between at least one housing part (22, 26) of the interconnector arrangement (10) and the membrane electrode assembly (52) to establish an electrically conducting connection. The invention also relates to a method for producing a contact arrangement for a fuel cell stack (34).

Description

technical field [0001] The invention relates to an internal connection device for a fuel cell stack, which enables an electrically conductive connection to at least one electrolyte membrane structure of the fuel cell stack. [0002] Furthermore, the invention relates to a method for producing a contact device for a fuel cell stack. Background technique [0003] Usually a plurality of individual fuel cells or electrolyte membrane structures can be combined to form a so-called fuel cell stack for obtaining a higher power than just a single fuel cell. Furthermore, adjacent fuel cells of the fuel cell stack are each connected to one another both electrically and mechanically via the internal connections connecting the fuel cells. Thus, by connecting the individual fuel cells by means of internal connecting means to form stacked fuel cells electrically connected in series, these fuel cells together form a fuel cell stack. The internal connections belonging to the prior art are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02
CPCH01M8/0232H01M8/0282Y02E60/50H01M2008/1293Y02E60/525H01M8/0241Y10T29/49108Y02P70/50H01M8/02H01M8/04H01M8/24
Inventor 安德烈亚斯·莱纳特
Owner 圣火有限责任公司