Title:
MANUFACTURING METHOD AND MANUFACTURING DEVICE FOR MEMBRANE ELECTRODE ASSEMBLY FOR POLYMER ELECTROLYTE FUEL CELL, AND POLYMER ELECTROLYTE FUEL CELL
Document Type and Number:
WIPO Patent Application WO/2012/124518
Kind Code:
A1
Abstract:
[Problem] To provide a method and manufacturing device for the low-cost, high-efficiency manufacture, in a desired shape, of a membrane electrode assembly for polymer electrolyte fuel cells (PEFC) without using films that are indirect materials, said membrane electrode assembly exhibiting low interface resistance and being equipped on both surfaces of the electrolyte membrane with an electrode catalyst layer that has good film thickness uniformity. [Solution] Coating fluid supply means (12) are used to form catalyst layers by coating the surface of transfer rollers (11) with a catalyst ink (16) comprising at least a proton-conducting polymer, a carbon-supported catalyst, and a solvent. In a semi-dried state, the catalyst layers on the transfer rollers (11) are pressed onto excess coating fluid removal rollers (13) having hollows in the same shape or substantially the same shape as the desired pattern. The excess portions of the catalyst layers are removed by being transferred from the transfer rollers (11) to raised portions of the excess coating fluid removal rollers (13), and the semi-dried catalyst layers, which have the desired shape, remaining on the transfer rollers (11) are pressed onto a polymer electrolyte membrane (4) and adhered to the surfaces thereof. The polymer electrolyte membrane (4), in which both sides of the electrolyte membrane have been provided with an electrode catalyst layer, is then dried.
Inventors:
OZAWA MADOKA (JP)
Application Number:
PCT/JP2012/055555
Publication Date:
September 20, 2012
Filing Date:
March 05, 2012
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD (JP)
OZAWA MADOKA (JP)
OZAWA MADOKA (JP)
International Classes:
H01M4/88; H01M8/02; H01M8/04; H01M8/10
Domestic Patent References:
| WO2008152993A1 | 2008-12-18 |
Foreign References:
| JP2001236971A | 2001-08-31 | |||
| JP2006185762A | 2006-07-13 | |||
| JP2010205676A | 2010-09-16 | |||
| JP2001038268A | 2001-02-13 | |||
| JPH01130472A | 1989-05-23 | |||
| JP2010055922A | 2010-03-11 | |||
| JP2006185762A | 2006-07-13 | |||
| JP2010129247A | 2010-06-10 | |||
| JP2006043505A | 2006-02-16 |
Other References:
See also references of EP 2688129A4
Download PDF:
Claims: