Research Results

FY2020　Conference Presentations（Domestic）

  • Hidemi Oonaka
    ” Electrification of automobiles, further accelerated by the pandemic -Development trends of fuel cell vehicles and remarks for small and medium-sized enterprises to enter the market- “
    Next-generation automobile WEB lecture, Dec 2020

  • Makoto Yamaguchi
    “Study by density functional theory calculation of chemical deterioration mechanism of fluorinated imide sulfonic acid electrolyte membrane”
    The 61st Symposium on Battery, Nov 2020

  • Kuniaki Yamaki, Seiichi Kuroda, Makoto Yamaguchi
    “Study of film thickness dependence of proton conductivity and water content of Nafion thin film on sapphire substrate”
    The 69th Symposium on Macromolecules, Sep 2020

Conference presentation（International Conference、Foreign）

  • Suguru Uemura, Katsunori Sakai, Takashi Sasabe, Hidetoshi Matsumoto, Hidekazu　Sugimori, Kazuhiko Shinohara, Shuichiro Hirai “ Effect of reaction products on the PEFC catalyst ink property and catalyst layer quality”, PRiME 2020, 2020.10

  • Kaname Iida, Takashi Sasabe, Katsunori Sakai, Suguru Uemura, Kazuhiko Shinohara, Shuichiro Hirai “Effects of Solvent Composition on Viscosity and Dispersion Structure of PEFC Catalyst Ink”, PRiME 2020, 2020.10

Paper presentation

  • Shota Katayama, Seiho Sugawara “Electrochemical method to quantitate gas transport resistance at immediate vicinity of catalyst surface in polymer electrolyte fuel cells”, Journal of Power Sources, 483 (2021) 229178

  • Chen Liu, Tomoki Uchiyama, Noriyuki Nagata, Masazumi Arao, Kentaro Yamamoto, Toshiki Watanabe, Xiao Gao, Hideto Imai, Shota Katayama, Seiho Sugawara, Kazuhiko Shinohara, Koichiro Oshima, Shigeki Sakurai, Yoshiharu Uchimoto “Operando X-ray Absorption Spectroscopic Study on the Influence of Specific Adsorption of the Sulfo Group in the Perfluorosulfonic Acid Ionomer on the Oxygen Reduction Reaction Activity of the Pt/C Catalyst”, ACS Applied Energy Materials, 4.2 (2021) 1143

  • Makoto Yamaguchi “DFT Study on the Chemical Degradation Mechanism of Perfluorobis(sulfonyl)imide Sulfonic Acid Ionomer Membranes” Journal of Physical Chemistry C, 125.3 (2021) 1929

  • Takayuki Tsukamoto, Tsutomu Aoki, Hiroyuki Kanesaka, Tadahiko Taniguchi, Tsutomu Takayama, Haruki Motegi, Ryo Takayama, Shoichi Tanaka, Keisuke Komiyama, Masakazu Yoneda “Three-dimensional numerical simulation of full-scale proton exchange membrane fuel cells at high current densities”, Journal of Power Sources, 488 (2021) 229412

  • Chen Liu, Tomoki Uchiyama, Kentaro Yamamoto, Toshiki Watanabe, Xiao Gao, Hideto Imai, Masashi Matsumoto, Seiho Sugawara, Kazuhiko Shinohara, Koichiro Oshima, Shigeki Sakurai, Yoshiharu Uchimoto “Effect of Temperature on Oxygen Reduction Reaction Kinetics for Pd Core-Pt Shell Catalyst with Different Core Size”, ACS Applied Energy Materials, 4.1 (2021) 810

  • Yuki Wakisaka, Hiromitsu Uehara, Qiuyi Yuan, Daiki Kido, Takahiro Wada, Motohiro Uo, Yohei Uemura, Toshihiko Yokoyama, Yutaro Kamei, Seiichi Kuroda, Akihiro Ohira, Satoru Takakusagi, Kiyotaka Asakura “Extracting the local electronic states of Pt polycrystalline films surface under electrochemical conditions using polarization-dependent total reflection fluorescence X-ray absorption near edge structure spectroscopy”, Electronic Structure, 2.4 (2020) 044003

  • Xiao Gao, Kentaro Yamamoto, Tomoyasu Hirai, Noboru Ohta, Tomoki Uchiyama, Toshiki Watanabe, Masakuni Takahashi, Naoki Takao, Hideto Imai, Seiho Sugawara, Kazuhiko Shinohara, Yoshiharu Uchimoto “Substrate-dependent proton transport and nanostructural orientation of perfluorosulfonic acid polymer thin films on Pt and carbon substrate”, Solid State Ionics, 357 (2020) 115456

  • Makoto Yamaguchi “Thermal desorption and pyrolysis direct analysis in real time mass spectrometry of Nafion membrane”, Journal of Applied Polymer Science, 138.14 (2021) 50172

  • Shota Katayama, Seiho Sugawara “Analytical Technique on PEFC Performance for Efficiency Loss Characterization and MEA Design” Journal of the Electrochemical Society, 167.12 (2020) 124511

Paper presentation（Not refereed）

  • Shota Katayama, Seiho Sugawara “MEA characterization method by PEFC single cell electrochemical measurement” Electrochemistry, 89.1 (2021) 53

  • Seiho Sugawara “Effect of mass transfer on electrode reaction rates of fuel cell” Fuel cell, 20.1, (2020) 62

  • Seiho Sugawara “Fuel Cell Electrode Reaction Rates” Fuel Cell, 19.4 (2020) 72

Conference・Paper presentation

NEDO Debriefing Materials

NEDO Debriefing Report / Interim Annual Report

※Please search for the following titles from the debriefing report database on the NEDO website, and download the target files for reference.

  • uel Cell Advanced Science Research Project (2005-2009)
  • Development of Practical Use Promotion Technology for Polymer Electrolyte Fuel Cell / Development of Basic Technology Structure / Reaction / Mass Transfer Analysis of MEA Materials (2010-2014)
  • Highly coupled analysis of solid macromolecule fuel cell utilization technology development business / development of basic technology development / catalyst / electrolyte / MEA internal phenomena, cell evaluation (2015-2017), development of MEA performance creation technology (2018) ~ 2019)
  • Common problem-solving industry-academia-government collaborative research and development project for the dramatic expansion of fuel cell use / Common problem-solving basic technology development / Research and development of electrochemical characteristic measurement technology (2020-)
  • Common problem-solving industry-academia-government collaborative research and development project aiming for sensational expansion of fuel cell use / common problem-solving basic technology development / evaluation analysis platform management (2020-)

Cell evaluation analysis protocol

Evaluation method