Title:
HYDROPHILIC POLYMERS AND THEIR USE IN ELECTROCHEMICAL CELLS
Document Type and Number:
WIPO Patent Application WO2003023890
Kind Code:
A3
Abstract:
A hydrophilic cross-linked polymer obtainable by copolymerisation of hydrophobic and hydrophilic monomers that give a cross-linked hydrophilic polymer on polymerisation; a monomer including a strongly ionic group; and water is useful as the membrane in an assembly that can be used in an electrolyter or fuel cell. More generally, a membrane electrode assembly comprises electrodes and an ion-exchange membrane which comprises a hydrophilic polymer including a strongly ionic group. A method for producing a membrane electrode assembly comprising electrodes and an ion-exchange membrane, comprises introducing between the electrodes a material or materials from which the membrane can be formed, and forming the membrane in situ.
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Inventors:
HIGHGATE DONALD JAMES (GB)
Application Number:
PCT/GB2002/004095
Publication Date:
February 19, 2004
Filing Date:
September 09, 2002
Export Citation:
Assignee:
ITM POWER LTD (GB)
HIGHGATE DONALD JAMES (GB)
HIGHGATE DONALD JAMES (GB)
International Classes:
B01D53/22; B01D67/00; B01D71/40; B01D71/42; B01D71/44; B05D5/12; C08F26/00; C08F220/44; C08F226/00; C08F226/08; C08J5/22; C25B9/23; C25B13/08; H01B1/06; H01B1/12; H01B13/00; H01M8/02; H01M8/04; H01M8/10; H01M8/18; (IPC1-7): H01M8/10; H01B1/12; C08F26/00; C08F226/00; C25B9/02
Domestic Patent References:
| WO2001049824A2 | 2001-07-12 |
Foreign References:
| US4036788A | 1977-07-19 |
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