Invention Grant
- Patent Title: Water removal channel for PEM fuel cell stack headers
- Patent Title (中): 用于PEM燃料电池堆头的除水通道
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Application No.: US11622492Application Date: 2007-01-12
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Publication No.: US07862936B2Publication Date: 2011-01-04
- Inventor: Jon P. Owejan , Steven R. Falta , Pinkhas A. Rapaport , Thomas A. Trabold , Thomas W. Tighe , Lee C. Whitehead
- Applicant: Jon P. Owejan , Steven R. Falta , Pinkhas A. Rapaport , Thomas A. Trabold , Thomas W. Tighe , Lee C. Whitehead
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations, Inc.
- Current Assignee: GM Global Technology Operations, Inc.
- Current Assignee Address: US MI Detroit
- Agency: Martin & Miller LLC
- Agent Fraser Clemens; J. Douglas Miller
- Main IPC: H01M2/02
- IPC: H01M2/02

Abstract:
A bipolar plate for a fuel cell is disclosed including a first unipolar plate having an active surface with a plurality of flowfield channels formed therein. The first unipolar plate further includes an inlet header disposed at a first end of the unipolar plate that is in communication with the active surface, and an outlet header disposed at a second end of the unipolar plate having an exhaust opening formed therethrough. A peripheral edge of the exhaust opening is chamfered and is also in communication with the active surface. The chamfered exhaust opening forms a water removal channel in the bipolar plate. A fuel cell stack including the bipolar plate is also disclosed.
Public/Granted literature
- US20080171253A1 WATER REMOVAL CHANNEL FOR PEM FUEL CELL STACK HEADERS Public/Granted day:2008-07-17
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