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Polyelectrolyte laminated membrane

A technology of polymer electrolyte and membrane layer, which is applied in the direction of layered products, circuits, fuel cells, etc., and can solve problems such as unusable fuel cells and wrinkles

Active Publication Date: 2015-07-08
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the polymer electrolyte is peeled off and used, it is easy to form a defective product with wrinkles or other defects, and there is a problem that it cannot be used for a fuel cell.

Method used

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  • Polyelectrolyte laminated membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] (Production of Polymer Electrolyte Membrane)

[0111] As a polymer electrolyte membrane, it is fabricated as follows by [CF 2 CF 2 ] 0.812 -[CF 2 -CF(-O-(CF 2 ) 2 -SO 3 H)] 0.188 An electrolyte membrane composed of the shown perfluorosulfonic acid polymer (hereinafter referred to as "PFS").

[0112] First, as the precursor polymers of PFS, tetrafluoroethylene and CF 2 =CFO(CF 2 ) 2 -SO 2 F perfluorocarbon polymer (MI: 3.0). The precursor polymer was melt-extruded and molded to a thickness of about 50 μm, and the molded film was mixed with a reaction liquid containing 15 mass % potassium hydroxide, 30 mass % dimethyl sulfoxide and 55 mass % water at 60 ° C Contact for 4 hours to carry out hydrolysis treatment. Thereafter, the membrane was immersed in 60° C. water for 4 hours, and then immersed in 60° C. 2N hydrochloric acid aqueous solution for 3 hours, and the acid was washed away with ion-exchanged water to obtain a polymer electrolyte membrane.

[0113] ...

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Abstract

The invention provides a polyelectrolyte laminated membrane and a manufacturing method of the polyelectrolyte laminated membrane. The polyelectrolyte laminated membrane overcomes the defects that folds can not increase even if a polyelectrolyte membrane is stored for a long term and the like, and the polyelectrolyte membrane can be easily peeled for use without any fold. The polyelectrolyte laminated membrane comprises a resin supporting membrane and the polyelectrolyte membrane, wherein the polyelectrolyte membrane is arranged on the resin supporting membrane in laminated mode, the thickness of the resin supporting membrane is 5 to 500 micrometers, and the thickness of the polyelectrolyte membrane is 1 to 500 micrometers. Corona discharge treatment or plasma discharge treatment is carried out at least to the laminated surface of the polyelectrolyte membrane on the resin supporting membrane, openings are formed on the same plane of the whole polyelectrolyte membrane at the thickness direction and a part of the laminated surface of the resin supporting membrane at the thickness direction, or the openings are formed on the same plane along the longitudinal direction or the transverse direction.

Description

technical field [0001] The present invention relates to a polymer electrolyte laminated membrane in which a polymer electrolyte membrane is laminated on a resin support membrane. Background technique [0002] The fuel cell obtains electrical energy from fuel (hydrogen source) and oxidant (oxygen) through electrochemical reactions in the battery, and directly converts the chemical energy of the fuel into electrical energy. As the fuel source of the fuel cell, petroleum, natural gas (methane, etc.), methanol, etc. containing hydrogen including pure hydrogen are used. [0003] The fuel cell itself has no mechanical parts, so it generates little noise, and by continuously supplying fuel and oxidant from the outside, it can generate electricity semi-permanently in principle. [0004] Electrolytes used in fuel cells are classified into liquid electrolytes and solid electrolytes, among which a fuel cell using a polymer electrolyte membrane as an electrolyte is called a solid polym...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/02B32B27/08H01M8/1018
CPCY02E60/50Y02P70/50
Inventor 本多政敏日南田哲夫
Owner ASAHI KASEI KK