Title:
GAS DIFFUSION ELECTRODE, ITS FORMING METHOD, AND FILM-ELECTRODE JUNCTION
Document Type and Number:
WIPO Patent Application WO/2008/029811
Kind Code:
A1
Abstract:
Provided are a gas diffusion electrode, which is sufficient in electric conductivity and mechanical strength, which can also be applied to a cylindrical fuel cell and which is inexpensive, a method for forming the electrode, and an MEA equipped with the electrode. In the gas diffusion electrode, carbon fibers are entangled with each other, and are jointed at their contact points by an electrically conductive polymer and a thermosetting resin. The carbon fibers are jointed at one portion by only the conductive polymer, at another such that they are jointed by the conductive polymer and such that the conductive polymer is covered with the thermosetting resin, and at still another by only the thermosetting resin. The portions, which are jointed by the conductive polymer, exist all over the gas diffusion electrode. As a result, the gas diffusion electrode has an electric conductivity as high as a volume resistance of about 0.02 (Ω cm) in both a thickness direction and a surface direction.
Inventors:
ITO, Makoto (LIMITED 1-36, Noritake-shinmachi, 3-chome, Nishi-k, Nagoya-shi Aichi 01, 4518501, JP)
伊藤 誠 (〒01 愛知県名古屋市西区則武新町三丁目１番３６号 株式会社ノリタケカンパニーリミテド内 Aichi, 4518501, JP)
伊藤 誠 (〒01 愛知県名古屋市西区則武新町三丁目１番３６号 株式会社ノリタケカンパニーリミテド内 Aichi, 4518501, JP)
Application Number:
JP2007/067234
Publication Date:
March 13, 2008
Filing Date:
September 04, 2007
Export Citation:
Assignee:
NORITAKE CO., LIMITED (1-36, Noritake-shinmachi 3-chome Nishi-k, Nagoya-shi Aichi 01, 4518501, JP)
株式会社ノリタケカンパニーリミテド (〒01 愛知県名古屋市西区則武新町三丁目１番３６号 Aichi, 4518501, JP)
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 4718571, JP)
株式会社ノリタケカンパニーリミテド (〒01 愛知県名古屋市西区則武新町三丁目１番３６号 Aichi, 4518501, JP)
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 4718571, JP)
International Classes:
H01M4/96; H01M4/88; H01M8/02; H01M8/10
Attorney, Agent or Firm:
IKEDA, Haruyuki (Ikeda Patent Office, Nagoya-Dia. Bldg. No.215-1,Meieki 3-chome, Nakamura-ku, Nagoya-shi Aichi 02, 4500002, JP)