End plate for fuel cell stack and method for manufacturing the same

A technology for a fuel cell stack and a manufacturing method, which is applied to fuel cell grouping, fuel cells, fuel cell additives, etc., can solve problems such as difficulty in operating end plates, unsuitability for thermal insulation, damage to cold start performance, etc., and achieves good operation, Reduced weight and improved thermal insulation

Inactive Publication Date: 2009-11-18
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But since the weight of the end plate made of stainless steel exceeds 7 to 8 kg, it becomes difficult to handle the end plate
Additionally, cold start performance is compromised as metal is not suitable for thermal insulation

Method used

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  • End plate for fuel cell stack and method for manufacturing the same
  • End plate for fuel cell stack and method for manufacturing the same
  • End plate for fuel cell stack and method for manufacturing the same

Examples

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Embodiment Construction

[0050]As described herein, the present invention includes an end plate for a fuel cell stack comprising a core member having a honeycomb structure including one or more cells filled with foam; and a plate member attached to the core member. In a preferred embodiment, the plate element is attached to the core element while covering the core element. In a further preferred embodiment, the foam filled in the cells of the honeycomb structure is an expanded foam or a closed-cell foam. In another preferred embodiment, the foam is further provided with thermal insulation.

[0051] The present invention also includes a method of manufacturing an end plate for a fuel cell stack, comprising the steps of: forming a core member having a honeycomb structure filled with foam; and adhering the plate member to the core member to enclose all or part of the surface of the core member .

[0052] In a preferred embodiment of the method, forming the core element having a foam-filled cell structu...

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Abstract

The present invention provides an end plate for fuel cell stack and a method for manufacturing an end plate, which can increase flexural rigidity per weight, and improve strain at break, and reduce heat transmission by applying hybrid core element having honeycomb and form structures to an end plate having sandwich structure combined to both end portions of a fuel cell stack.

Description

[0001] Cross References to Related Applications [0002] This application claims priority under 35 U.S.C. §119(a) to Korean Patent Application No. 10-2008-0043731 filed May 13, 2008, the entire contents of which are incorporated herein by reference. technical field [0003] The invention relates to an end plate for a fuel cell group and a manufacturing method thereof. More particularly, the present invention relates to an end plate for a fuel cell stack and a manufacturing method thereof, wherein the end plate and the manufacturing method can improve each Flexural stiffness per unit weight, stress at break, and reduced heat transfer. Background technique [0004] A polymer electrolyte membrane fuel cell or proton exchange membrane fuel cell ("PEMFC") generates electricity through the electrochemical reaction of hydrogen and oxygen. Compared with other types of fuel cells, PEMFCs have higher efficiency, higher current and output densities, shorter start-up times and faster...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/02
CPCH01M8/04067H01M2008/1095H01M8/0228H01M8/0221H01M8/0247Y02E60/50H01M8/0206H01M8/0223Y10T29/49114Y02P70/50H01M8/04H01M8/24
Inventor 金世勋李成浩徐正焘安炳琪林泰源李大吉金成洙庾哈纳黄仁郁
Owner HYUNDAI MOTOR CO LTD
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