Solid alkaline fuel cell comprising ion exchange membrane

An anion-exchange membrane and fuel cell technology, applied in the field of ion-exchange membranes, can solve problems such as unsatisfactory performance
CN1998108AInactive Publication Date: 2007-07-11SOLVAY SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOLVAY SA
Publication Date
2007-07-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention provides solid alkaline fuel cells comprising anion exchange membranes which comprise diamines or polyamines coupled to a support polymer via a sulfonamide linkage. At least one nitrogen atom of the diamine or polyamine is a quaternized nitrogen atom acting as an anion exchange group. The anion exchange membrane exhibits favourable properties that render it suitable for use in a solid alkaline fuel cell.
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Description

technical field

[0001] The present invention relates to solid alkaline fuel cells comprising specific ion exchange membranes. The present invention also relates to ion exchange membranes particularly suitable for solid alkaline fuel cells. Background technique

[0002] In recent years, fuel cell technology has attracted considerable interest. In the simplest case, a fuel cell comprises two electrically conductive electrodes separated from each other by an ion-conducting membrane, and reaction media such as hydrogen and oxygen are fed through integrated gas or liquid feed tubes.

[0003] Since the electrolyte operates at typical temperatures below 100°C, most polymer electrolyte membranes currently used in fuel cells are proton exchange membranes and are based on perfluorosulfonic acid (PFSA) polymers. A typical example of such a perfluorosulfonic acid (PFSA) polymer membrane is the product Nafion(R), which is widely used in fuel cells. Examples of perfluorinated polymers ...

Claims

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