Accession Number : ADD007242

Title :   Seawater Battery.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Shah,Pinakin M

Report Date : 15 Apr 1980

Pagination or Media Count : 7

Abstract : This patent describes a high energy multicell seawater activated battery with provision for uniformly distributing a desired concentration of the electrolyte for maximum power output. When the battery is submerged to a predetermined depth, seawater is admitted into a mixing chamber where it flows through a plurality of intercommunicating compartments each containing an electrolyte of pelletized potassium hydroxide (KOH) which dilutes to form an ionized solution. The solution flows into a plurality of evacuated cells to establish an ionic flow from a nickel oxide hydroxide (Ni00H) cathode to a zinc (Zn) anode in each cell. An outlet valve in each cell releases the solution to reduce the internal cell pressure when the external pressure decreases as when the battery is retrieved. The quantity of pelletized electrolyte, seawater flow rate, and turbulence within the chamber are predetermined to insure uniform distribution of electrolyte in solution at a desired concentration. The improved electrolyte mixing thereby results in a battery of relatively high power output per unit of volume. (Author)

Descriptors :   *Patents, *Electric batteries, *Sea water batteries, High energy, Electrolytic cells, Mixing, Electrolytes, Ions, Valves, Potassium compounds, Hydroxides, Turbulence, Rates, Pressure, Nickel compounds, Oxides, Power supplies

Subject Categories : Electrochemical Energy Storage

Distribution Statement : APPROVED FOR PUBLIC RELEASE