Invention Grant
- Patent Title: Method for cold-start of fuel cell stack
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Application No.: US14744034Application Date: 2015-06-19
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Publication No.: US10249890B2Publication Date: 2019-04-02
- Inventor: Michael Procter , Richard G. Fellows , Yosuke Fukuyama , Shiomi Takeshi
- Applicant: AUTOMOTIVE FUEL CELL COOPERATION, CORP.
- Applicant Address: DE Stuttgart US MI Dearborn JP Yokohama-shi, Kanagawa
- Assignee: Daimler AG,Ford Motor Company,Nissan Motor Co., Ltd.
- Current Assignee: Daimler AG,Ford Motor Company,Nissan Motor Co., Ltd.
- Current Assignee Address: DE Stuttgart US MI Dearborn JP Yokohama-shi, Kanagawa
- Agency: Patent Central LLC
- Agent Stephan A. Pendorf
- Main IPC: H01M8/04
- IPC: H01M8/04 ; H01M8/04223 ; H01M8/04828 ; H01M8/04029 ; H01M8/0432 ; H01M8/04492 ; H01M8/04955

Abstract:
Methods and systems are provided for cold-start of fuel cell stack in fuel cell vehicles. In one example, a method may include in response to cold-start of fuel cell vehicle, limiting the load drawn from the fuel cell stack. In addition, a coolant pump may be operated at a higher rate through a bypass loop to get heat quickly to the fuel cell stack to increase the solubility of water in the fuel cell stack to prevent ice formation. The net effect is that the fuel cell stack is then operated within the ice capacity of the membrane, and start-up at lower temperatures is possible without experiencing an intermittent performance drop due to active area freezing. Once the fuel cell stack is sufficiently warmed up, the coolant pump rate and fuel cell stack may be adjusted according to the demand.
Public/Granted literature
- US20160372768A1 METHOD FOR COLD-START OF FUEL CELL STACK Public/Granted day:2016-12-22
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