Electrochemical cell

Details Electrochemical cell Electrochemical cell

1980-11-21

1982-03-09

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

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

Active material in solution

429194, 429196, H01M 436

Patent

active

043189695

ABSTRACT:
An electrochemical cell having an anode which is an alloy of an oxidizable metal, specifically lithium, and an element having a lower oxidation potential, for example calcium. The cell is partially discharged to deplete the amount of lithium at the surface of the anode. Then the cell is conditioned, preferably by annealing at a temperature of about 70.degree. C. for one to two weeks. This treatment produces an anode having a surface region which is either a layer consisting mostly of the element or a lithium compound of the element. This protective coating on the anode limits the short circuit current which can flow through the cell.

REFERENCES:
patent: 4093784 (1978-06-01), Driscoll
patent: 4224389 (1980-09-01), Peled
patent: 4278741 (1981-07-01), Kalnoki-kis
patent: 4283469 (1981-08-01), Goebel et al.

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