SEA WATER BATTERY WITH METAL CATHODE AND METHOD FOR MAKING A CATHODE

This invention relates sea water cells or salt water galvanic cells or batteries which use oxygen dissolved in the sea water as oxidant, and in particular to cathodes which are suitable for cells which are exposed to high hydrodynamic forces (from waves or strong currents). The cathode (3, 12) may c...

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Bibliographische Detailangaben
Hauptverfasser:	HASVOLD, OISTEIN, OSTVOLD, TOM, GARSHOL, TOR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	This invention relates sea water cells or salt water galvanic cells or batteries which use oxygen dissolved in the sea water as oxidant, and in particular to cathodes which are suitable for cells which are exposed to high hydrodynamic forces (from waves or strong currents). The cathode (3, 12) may consist of a helix, or helically wound perforated or expanded metal plate or sheet. The cathode (20) may alternatively consist of a number of concentrical spaced apart layers of cylinders of perforated or expanded metal sheet. The number of layers of the cathode is 2-50, preferably 3-20. The layers of the cathode are spaced apart with radially arranged suitable bars, spacers, notches (4, 15, 16) or the like.