发明名称 |
Coolant plate assembly for a fuel cell stack |
摘要 |
The coolant plate component of a fuel cell assembly is formed from a plate made from graphite particles that are bonded together by a fluorocarbon polymer binder and which encapsulate a serpentine coolant circulation tube. The coolant plate component is non-porous. The graphite particles are preferably flakes which pack together very tightly, and require only a minor amount of the polymer binder to form a solid plate. The plate will provide enhanced heat transfer, will conduct electrons, and will block electrolyte migration from cell to cell in a fuel cell stack due to its construction. The composition of the plate is graded so as to provide a varied coefficient of thermal expansion as measured through the thickness of the plate so as to reduce thermal stresses imposed on the fuel cell stack. The coolant circulation tube has a roughened outer surface which enhances adhesion of the encapsulating graphite flake/binder mixture without inhibiting heat transfer.
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申请公布号 |
US6050331(A) |
申请公布日期 |
2000.04.18 |
申请号 |
US19960626015 |
申请日期 |
1996.03.22 |
申请人 |
INTERNATIONAL FUEL CELLS L.L.C. |
发明人 |
BREAULT, RICHARD D.;MARTIN, RONALD G.;ROCHE, ROBERT P.;SCHEFFLER, GLEN W.;O'BRIEN, JOSEPH J.;RAJPOLT MICHAEL J JR |
分类号 |
F28F21/02;H01M8/02;(IPC1-7):F28F3/12 |
主分类号 |
F28F21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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