Lithium cell having continuous depletion gauge

Details Lithium cell having continuous depletion gauge Lithium cell having continuous depletion gauge

1983-07-28

1985-05-07

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

With measuring, testing, or indicating means

For charge or liquid level

H01M 1048

Patent

active

045158738

ABSTRACT:
A lithium cell which includes an outer conductive housing, a cathode having one major surface in contact with the conductive housing, an insulative separator adjacent to the other major surface of the cathode, and a lithium anode having a pair of major surfaces one of which is adjacent to the insulative separator. A resistive sensing element is disposed within the lithium anode and extends generally in a direction from one of the major surfaces of the lithium anode to the other major surface of the anode. An electrical conductor is connected to the resistive sensing element and extends out of the conductive housing so that as the lithium anode is consumed by the discharge of the cell the electrical resistance as measured between the conductive housing and the electrical conductor provides an indication of the level of discharge of the cell.

REFERENCES:
patent: 4136234 (1979-01-01), Fritts
patent: 4388380 (1983-06-01), DeHaan et al.
patent: 4416957 (1983-11-01), Goebel et al.
patent: 4418129 (1983-11-01), Goebel

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