Supported liquid membrane electrochemical separators
A separator is described for use in electrochemical cells, comprising: a hydrophobic microporous membrane; and a liquid ionic transport agent comprising an organic agent dissolved in an organic solvent supported by a porous matrix of the membrane that selectively transports specific cation or anion species through the membrane while rejecting others, wherein the liquid ionic transport agent is insoluble in the electrochemical electrolyte solution. An alkaline battery is described comprising at least one pair of a positive electrode and a negative electrode the improvement comprising a hydrophobic microporous membrane which supports within its porous matrix a liquid ionic transport agent interposed between the negative and the positive electrode. The agent is substantially insoluble in the electrochemical electrolyte solution and consists essentially of an organic ion transport agent in a polar organic solvent therefore, such that the electrolyte insoluble agent selectively transports specific cation and anion species through the microporous membrane.
- Assignee:
- Castle Tech. Corp., Woburn, MA
- Patent Number(s):
- US 4592973
- OSTI ID:
- 5467344
- Resource Relation:
- Patent File Date: Filed date 3 May 1985
- Country of Publication:
- United States
- Language:
- English
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