3D generation and reconstruction of the fuel cell catalyst layer using 2D images based on deep learning

Xuanchen Liu, Kayoung Park, Magnus So, Shota Ishikawa, Takeshi Terao, Kazuhiko Shinohara, Chiyuri Komori, Naoki Kimura, Gen Inoue, Yoshifumi Tsuge

研究成果: ジャーナルへの寄稿学術誌査読

2 被引用数 (Scopus)

抄録

The catalyst layer (CL) being the site of electrochemical reactions, is the core subunit of the membrane electrode assembly (MEA) in polymer electrolyte fuel cells (PEFCs). Thus, the porous structure of the CL has a significant influence on oxygen transfer resistance and affects the charge/discharge performance. In this study, the three-dimensional (3D) porous structure of the catalyst layer is reconstructed based on the deep convolutional generative adversarial network (DCGAN) deep learning method, utilizing focused ion beam scanning electron microscopy (FIB-SEM) microstructure graphs as training data. Each set of spatial-continuous microstructure graphs, generated by DCGAN with interpolation in latent space, is applied to build a unique 3D microstructure of the CL without the use of real FIB-SEM data. Meanwhile, distinct interpolation conditions in the DCGAN are discussed to optimize the ultimate structure by approaching the structural information to real data, including that of porosity, particle size distribution, and tortuosity. Moreover, the comparison of real and generated structural data reveal that the data generated by DCGAN shows an adjacency relationship with real data, indicating its potential applicability in the field of electrochemical simulation with reduced situational costs.

本文言語英語
論文番号100084
ジャーナルJournal of Power Sources Advances
14
DOI
出版ステータス出版済み - 3月 2022

!!!All Science Journal Classification (ASJC) codes

  • エネルギー工学および電力技術
  • 電気化学
  • 材料化学

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