Invention Grant
- Patent Title: Fuel cell evaluator and fuel cell evaluation method
- Patent Title (中): 燃料电池评估器和燃料电池评估方法
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Application No.: US13314795Application Date: 2011-12-08
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Publication No.: US09548506B2Publication Date: 2017-01-17
- Inventor: Daisuke Yamazaki , Tetsuo Yano , Souichirou Torai , Nobuhiro Tomosada , Atsufumi Kimura , Tomomi Akutsu , Makoto Kawano
- Applicant: Daisuke Yamazaki , Tetsuo Yano , Souichirou Torai , Nobuhiro Tomosada , Atsufumi Kimura , Tomomi Akutsu , Makoto Kawano
- Applicant Address: JP Tokyo
- Assignee: YOKOGAWA ELECTRIC CORPORATION
- Current Assignee: YOKOGAWA ELECTRIC CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-274391 20101209; JP2010-274392 20101209; JP2010-292433 20101228; JP2011-226688 20111014
- Main IPC: G01R15/00
- IPC: G01R15/00 ; H01M8/04 ; G01R31/36 ; H01M8/10

Abstract:
In one embodiment, there is provided a fuel cell evaluator for evaluating a characteristic of a fuel cell based on a frequency characteristic of impedance of the fuel cell. The evaluator includes: an impedance acquisition unit configured to acquire impedances of the fuel cell for a certain current value in a Tafel region by changing a measurement frequency; an extraction unit configured to extract a reaction resistance from the acquired impedances; a calculator configured to calculate the product of the reaction resistance and the certain current value; and an indicator configured to indicate the product calculated by the calculator as the frequency characteristic of the impedance of the fuel cell.
Public/Granted literature
- US20120145564A1 FUEL CELL EVALUATOR AND FUEL CELL EVALUATION METHOD Public/Granted day:2012-06-14
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