Lithium peroxide primary element

Details Lithium peroxide primary element Lithium peroxide primary element

1980-07-18

1985-03-12

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

429 27, H01M 622

Patent

active

045045615

ABSTRACT:
In a galvanic primary element of the system Li/H.sub.2 O.sub.2, the aqueous cathode depolarizer H.sub.2 O.sub.2 is fixated as a polyurethane gel. It can thereby be controlled and caused to react with the anode metal in accordance with the current drain requirements. This is accomplished using a ram to press the gel toward a conductor which covers the lithium anode, which may take the form of a metal grid and/or a gas diffusion electrode. The oxygen which forms in the working layer through catalytic decomposition of hydrogen peroxide creates a gas bubble when the current is interrupted or the ram is stopped, thereby interrupting the further supply of hydrogen peroxide to the catalyst.

REFERENCES:
patent: 3791871 (1974-02-01), Rowley
patent: 3825445 (1974-07-01), MacCarthy
Kemp et al., Design of Performance Features of A 0.45 kW, 4kWh Lithium Water Marine Battery, 11th Intersociety Energy Conversion Eng. Conference, State Line Nev. USA (Sep. 12-17, 1976, pp. 769078-769078.

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