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:
Apr. 30, 2024
Filed:
Jun. 05, 2021
Tsinghua University, Beijing, CN;
Jian-Qiu Li, Beijing, CN;
Zun-Yan Hu, Beijing, CN;
Liang-Fei Xu, Beijing, CN;
Ming-Gao Ouyang, Beijing, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
A method for diagnosing degradation of a fuel cell stack, including: S, qualitatively determining a degradation type of the fuel cell stack according to a voltage-current curve of the fuel cell stack; S, quantitatively measuring parameter values of each of individual cells of the fuel cell stack according to the degradation type, and quantitatively determining a degradation degree of each of the individual cells according to the parameter values; S, determining a uniformity degradation degree among the individual cells of the fuel cell stack according to a non-uniformity degree of a voltage distribution of the individual cells. By qualitatively determining the degradation type of the fuel cell stack, the degradation condition of the entire fuel cell stack may be obtained.