The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 21, 2004
Filed:
Oct. 20, 2003
Applicant:
Inventor:
Deliang Yang, Torrance, CA (US);
Assignee:
UTC Fuel Cells, LLC, South Windsor, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04 ; H01M 8/02 ;
U.S. Cl.
CPC ...
H01M 8/04 ; H01M 8/02 ;
Abstract
A reduced volume fuel cell stack ( ) includes a plurality of thin fuel cells ( ) and a plurality of thick fuel cells ( ). The thin fuel cells include water management channels ( A, B, C, D) and the thick fuel cells include cooling channels ( A, B, C, D). At least two thin fuel cells ( ) are secured adjacent each other and adjacent each thick fuel cell ( ) within the stack ( ). The water management channels ( A, B, C, D) have a depth that is at least four times less than a depth of the cooling channels ( A, B, C, D) so that volume, weight and water content of the stack ( ) are reduced.