Voltage and Voltage Consistency Attenuation Law of the Fuel Cell Stack Based on the Durability Cycle Condition
Based on the durability cycle test of fuel cell stack and the characteristics of cyclic working conditions, this paper defines the characteristic current point and studies the attenuation rule of the fuel cell stack voltage over time under the characteristic current point. The results show that the voltage of the fuel cell stack appears to be linear downward under the characteristic current point. and the voltage attenuation rate of the fuel cell stack increases quadratically with the increase of the current density in addition to the open-circuit voltage point. Then the coefficient of variation is introduced in statistics as the index to characterize the voltage consistency attenuation of the fuel cell stack, and its variation rule is explored. The results show that the voltage consistency of vehicle fuel cell stack decreases seriously with the increase of running time under the condition of durable cycling.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
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Supplemental Notes:
- Abstract reprinted with permission of SAE International.
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Authors:
- Hou, Yongping
- Ouyang, Yunhan
- Pei, Fenglai
- Hao, Dong
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Conference:
- WCX SAE World Congress Experience
- Location: Detroit Michigan, United States
- Date: 2019-4-9 to 2019-4-11
- Publication Date: 2019-4-2
Language
- English
Media Info
- Media Type: Web
- Features: References;
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Serial:
- SAE Technical Paper
- Publisher: Society of Automotive Engineers (SAE)
- ISSN: 0148-7191
- EISSN: 2688-3627
- Serial URL: http://papers.sae.org/
Subject/Index Terms
- TRT Terms: Attenuation (Electricity); Durability; Fuel cells; Statistical analysis; Voltage
- Subject Areas: Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01706266
- Record Type: Publication
- Source Agency: SAE International
- Report/Paper Numbers: 2019-01-0386
- Files: TRIS, SAE
- Created Date: May 28 2019 4:50PM