Title:
METHOD OF MANUFACTURING ELECTROLYTE MEMBRANE, METHOD OF MANUFACTURING ASSEMBLY FOR FUEL CELL
Document Type and Number:
Japanese Patent JP2017091938
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce manufacturing failures due to removal of a back sheet adhering the precursor of an electrolyte membrane.SOLUTION: Three changes occur when immersing a laminate 345 into an alkaline solution. As the first change, the terminal group of a precursor 315 changes from -SOF to -SONa. The second change is elution of the whole engineered back sheet 130. More specifically, the engineered back sheet 130 disappears. The third change is elution of contaminants, contained in a composite material back sheet 230, into the alkaline solution. As a result, composite material back sheet 230 is composed only of a resin layer 231. The resin layer 231 has a large number of cavities in the vicinity of the boundary surface, as a result of elution of the contaminants.SELECTED DRAWING: Figure 6
Inventors:
KITO HIROKI
HOSHINO TATSUO
HOSHINO TATSUO
Application Number:
JP2015223599A
Publication Date:
May 25, 2017
Filing Date:
November 16, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M8/02; H01M4/88
Domestic Patent References:
| JP2015144123A | 2015-08-06 | |||
| JP2014026901A | 2014-02-06 | |||
| JP2010049825A | 2010-03-04 | |||
| JP2012243451A | 2012-12-10 | |||
| JP2011144374A | 2011-07-28 | |||
| JP2008277288A | 2008-11-13 |
Foreign References:
| US20110097651A1 | 2011-04-28 |
Attorney, Agent or Firm:
Meisei International Patent Office