Title:
微細構造材料及びその製造方法、並びに、燃料電池用膜電極接合体
Document Type and Number:
Japanese Patent JP5831009
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To suppress aggregation between fibers in supporting an ionomer on a fiber surface of an array body in which carbon-containing fibers having a fiber outer diameter of less than 10 nm are arranged substantially in parallel.SOLUTION: There is provided a microstructure material including: an array body comprising a plurality of carbon-containing fibers having a fiber outer diameter of 0.4 nm or more and less than 10 nm while fiber axes of the carbon-containing fibers are arranged substantially in parallel; an ionomer in contact with side walls of the carbon-containing fibers; and a space where the carbon-containing fibers and the ionomer are not present. In the microstructure material, a summation of areas of regions where a distance between adjacent carbon-containing fibers is less than 1 μm in a given cross section substantially vertical to the fiber axis direction of the array body is larger than 20% of the total cross sectional area. A method for manufacturing the microstructure material, and a membrane-electrode assembly for a fuel cell, manufactured using the microstructure material are also provided.
More Like This:
Inventors:
Riichiro Ota
Tatsuya Hatanaka
Atsuto Okamoto
Koichi Nishikawa
Tatsuya Hatanaka
Atsuto Okamoto
Koichi Nishikawa
Application Number:
JP2011162516A
Publication Date:
December 09, 2015
Filing Date:
July 25, 2011
Export Citation:
Assignee:
Toyota Central R & D Labs.
International Classes:
H01M4/86; C01B31/02; D01F9/127; H01M4/88; H01M4/90; H01M4/96; H01M8/10
Domestic Patent References:
| JP2010173862A | ||||
| JP2010272437A | ||||
| JP2008066229A | ||||
| JP2008270053A |
Attorney, Agent or Firm:
Fumio Hatakeyama
Kaoru Kobayashi
Kaoru Kobayashi