US Patent No: 7,455,703

Number of patents in Portfolio can not be more than 2000

Method for manufacturing polymer electrolyte fuel cell

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Abstract

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The present invention provides a polymer electrolyte fuel cell having an increased reaction area by forming a gas channel, a proton channel and an electron channel very close to each other inside a catalyst layer. This polymer electrolyte fuel cell includes a hydrogen ion conductive polymer electrolyte membrane; and a pair of electrodes having catalyst layers sandwiching the hydrogen ion conductive polymer electrolyte membrane between them and gas diffusion layers in contact with the catalyst layers, in which the catalyst layer of at least one of the electrodes comprises carbon particles supporting a noble metal catalyst, and the carbon particles include at least two kinds of carbon particles adsorbing a hydrogen ion conductive polymer electrolyte in mutually different dispersed states.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
PANASONIC CORPORATIONOSAKA, JP11507

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hori, Yoshihiro Ikoma, JP 116 1366
Kosako, Shinya Nishinomiya, JP 24 185
Morita, Junji Moriguchi, JP 49 134
Sakai, Osamu Neyagawa, JP 68 646
Sugawara, Yasushi Higashiosaka, JP 66 436
Uchida, Makoto Hirakata, JP 109 884
Yamamoto, Masao Kishiwada, JP 120 1454
Yasumoto, Eiichi Kyoto, JP 70 494
Yoshida, Akihiko Hirakata, JP 110 1082

Cited Art Landscape

Patent Info (Count) # Cites Year
 
WATANABE, MASAHIRO (1)
5,766,788 Electrode composition material for polymer electrolyte fuel cell and process of preparing same 32 1996
 
TANAKA KIKINZOKU KOGYO K.K. (1)
5,728,485 Electrode for polymer electrolyte electrochemical cell and process of preparing same 28 1997
 
TOYOTA JIDOSHA KABUSHIKI KAISHA (1)
* 6,589,685 Fuel cell electrode catalyst solution and production method therefor 5 2001
 
LOS ALAMOS NATIONAL SECURITY, LLC (1)
5,211,984 Membrane catalyst layer for fuel cells 140 1991
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
5,723,173 Method for manufacturing solid polymer electrolyte fuel cell 23 1996
6,060,187 Solid polymer type fuel cell and method for manufacturing the same 7 1998
* Cited By Examiner

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