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1. (US20090142638) COMPOSITE POROUS MEMBRANE, METHOD FOR PRODUCING COMPOSITE POROUS MEMBRANE, SOLID POLYMER ELECTROLYTE MEMBRANE, AND FUEL CELL

Office : United States of America
Application Number: 11996079 Application Date: 19.07.2006
Publication Number: 20090142638 Publication Date: 04.06.2009
Publication Kind : A1
Prior PCT appl.: Application Number:JP06314711 ; Publication Number: Click to see the data
IPC:
H01M 8/02
B29C 35/08
C25B 13/00
H01M 8/10
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8
Fuel cells; Manufacture thereof
02
Details
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35
Heating, cooling or curing, e.g. crosslinking, vulcanising; Apparatus therefor
02
Heating or curing, e.g. crosslinking, vulcanising
08
by wave energy or particle radiation
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
B
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
13
Diaphragms; Spacing elements
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8
Fuel cells; Manufacture thereof
10
Fuel cells with solid electrolytes
Applicants: KATAYAMA YUKIHISA
Inventors: Katayama Yukihisa
Agents: FINNEGAN, HENDERSON, FARABOW, GARRETT &; DUNNER;LLP
Priority Data: 2005208168 19.07.2005 JP
Title: (EN) COMPOSITE POROUS MEMBRANE, METHOD FOR PRODUCING COMPOSITE POROUS MEMBRANE, SOLID POLYMER ELECTROLYTE MEMBRANE, AND FUEL CELL
Abstract: front page image
(EN)

It is intended to provide a composite porous membrane comprising a fibrous filler-containing polymer film or sheet, characterized by having a large number of pores with an exposed fibrous filler formed by irradiation with an ultra-short pulse laser with a pulse width of 10−9 seconds or less, and to provide a polymer electrolyte membrane having the pores that are filled with a polymer electrolyte. According to the present invention, an inorganic-organic or organic-organic composite porous membrane can be obtained, which can be prepared as a thin membrane and is highly durable with high strength and a reduced cross-leak of fuel gas. This composite porous membrane can be used as a solid polymer electrolyte membrane to obtain a fuel cell improved in output voltage and electric current density.


Also published as:
EP1909347CN101223663CA2615098WO/2007/011054