3D water management in polymer electrolyte fuel cells toward fuel cell electric vehicles

Yoshimune, Wataru*; Higuchi, Yuki*; Kato, Akihiko*; Hibi, Shogo*; Yamaguchi, Satoshi*; Matsumoto, Yoshihiro*; Hayashida, Hirotoshi*; Nozaki, Hiroshi*; Shinohara, Takenao ; Kato, Satoru*

A multiscale water visualization technique for polymer electrolyte fuel cells was established by using multiprobe radiography with pulsed spallation neutron and synchrotron X-ray sources. The three-dimensional water distribution revealed that water back-diffusion from the cathode to the anode significantly contributes to the drainability of practical polymer electrolyte fuel cells toward fuel cell electric vehicles.

Language	:	English
Journal	:	ACS Energy Letters (Internet)
Volume	:	8
Number	:	8
Pages	:	p.3485 - 3487
Publication Year/Month	:	2023/08
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Paper URL	:	https://doi.org/10.1021/acsenergylett.3c01096
DOI for research data	:	https://doi.org/10.1021/acsenergylett.3c01096
Keywords	:	no keyword
Research Facility	:	J-PARC物質・生命科学実験施設
Press Release	:	自動車向け燃料電池内部の水の挙動を解明; 中性子と放射光による観察に世界で初めて成功
Article of JAEA R&D Review	:
Cooperating Institute	:	豊田中央研究所

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Registration No. : AA20230273
JAEA Abstracts No. : 52000141
Paper Submission No. : 27550

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