Title:
POLYELECTROLYTE COMPOSITION AND FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2009/041712
Kind Code:
A1
Abstract:
A polyelectrolyte composition comprising plural ionically conductive polymers,
among which the ionically conductive polymer having the highest ion-exchange
capacity is defined as the first ionically conductive polymer and the ionically
conductive polymer having the lowest ion-exchange capacity is defined as the
second ionically conductive polymer, wherein the first and second ionically
conductive polymers are each a block copolymer composed of both a segment having
ion-exchange groups and a segment substantially free from ion-exchange groups
and the weight fraction (Wh1) of the segment having ion-exchange groups in the
first ionically conductive polymer and that (Wh2) of the segment having ion-exchange
groups in the second ionically conductive polymer satisfy the relationships
(I) and (II): (I) Wh1 > Wh2 (II) Wh1 - Wh2 ≤ 0.25
Inventors:
YAMASHITA, Yasuhiro (2-13-1-5-204, Umezono Tsukuba-sh, Ibaraki 45, 3050045, JP)
山下恭弘 (〒45 茨城県つくば市梅園２－１３－１－５－２０４ Ibaraki, 3050045, JP)
YASHIKI, Daizaburo (2-6-423, Ikku-cho Niihama-sh, Ehime 25, 7920025, JP)
山下恭弘 (〒45 茨城県つくば市梅園２－１３－１－５－２０４ Ibaraki, 3050045, JP)
YASHIKI, Daizaburo (2-6-423, Ikku-cho Niihama-sh, Ehime 25, 7920025, JP)
Application Number:
JP2008/067876
Publication Date:
April 02, 2009
Filing Date:
September 25, 2008
Export Citation:
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED (27-1, Shinkawa 2-chome Chuo-k, Tokyo 60, 1048260, JP)
住友化学株式会社 (〒60 東京都中央区新川二丁目２７番１号 Tokyo, 1048260, JP)
YAMASHITA, Yasuhiro (2-13-1-5-204, Umezono Tsukuba-sh, Ibaraki 45, 3050045, JP)
山下恭弘 (〒45 茨城県つくば市梅園２－１３－１－５－２０４ Ibaraki, 3050045, JP)
住友化学株式会社 (〒60 東京都中央区新川二丁目２７番１号 Tokyo, 1048260, JP)
YAMASHITA, Yasuhiro (2-13-1-5-204, Umezono Tsukuba-sh, Ibaraki 45, 3050045, JP)
山下恭弘 (〒45 茨城県つくば市梅園２－１３－１－５－２０４ Ibaraki, 3050045, JP)
International Classes:
H01B13/00; H01B1/06; H01M8/02; H01M8/10
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (Limited 5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 50, 5418550, JP)