検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Neutron imaging of generated water inside polymer electrolyte fuel cell using newly-developed gas diffusion layer with gas flow channels during power generation

那須 三紀*; 谷内 浩*; 平山 尚樹*; 安達 宏法*; 柿澤 優*; 白勢 裕登*; 西山 博道*; 川本 鉄平*; 犬飼 潤治*; 篠原 武尚   ; 林田 洋寿*; 渡辺 政廣*

Nasu, Mitsunori*; Yanai, Hiroshi*; Hirayama, Naoki*; Adachi, Hironori*; Kakizawa, Yu*; Shirase, Yuto*; Nishiyama, Hiromichi*; Kawamoto, Teppei*; Inukai, Junji*; Shinohara, Takenao; Hayashida, Hirotoshi*; Watanabe, Masahiro*

To accelerate the spread use of polymer electrolyte fuel cells (PEFCs), it is essential to increase power density and durability, while reduce costs. We have succeeded in developing an innovative gas diffusion layer (GDL) with gas flow channels (GDLFC$$^{+}$$) fabricated on a flat separator that enabled both cost reduction and high performance. In this study, neutron radiography was used to observe the distribution of liquid water during power generation. With using our GDLs and interdigitated (comb-shaped) gas flow channels, the distributions of liquid water were quantitatively imaged, influenced by the current density, the relative humidity, the oxygen utilization, and the water repellency of the GDL. The increase in linear velocity of the oxidant gases effectively suppressed the retention of liquid water at the cathode.

Access

:

- Accesses

InCites™

:

パーセンタイル:88.13

分野:Chemistry, Physical

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.