Water deficiency diagnosis method of fuel battery proton exchange membrane and monitoring system
Title：
Water deficiency diagnosis method of fuel battery proton exchange membrane and monitoring system
Application Number：
 200510126365
Application Date：
 2005/12/09
Announcement Date：
 2006/06/28
Pub. Date：
Publication Number：
 1793882
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G01N 27/12
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Pei Pucheng
Key Words：
 fuel battery, proton exchange membrane, water deficiency, diagnosis method, monitoring system
Abstract：
 A method for diagnosing water ¨C deficiency of proton exchange film on fuel cell includes recording 3D pulse spectrogram Ro¡¯ = f ( T, I ) under condition of different operation temperature T and operation current I when said film is humidified well and storing it in computer, collecting real time operation temperature T and voltage V as well as current I, calculating fuel cell voltage variation value ¡÷V and current variation value ¡÷I as well as impedance value Ro =¡÷V / ¡÷I, comparing current impedance Ro with impedance Ro¡¯ in said spectrogram, issuing water ¨C deficiency signal if Ro is greater then Ro¡¯.
Claim：
Priority：
PCT：
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Last Update  
2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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