H - Electricity – 01 – M
Patent
H - Electricity
01
M
319/32, 319/93
H01M 6/02 (2006.01) H01M 2/00 (2006.01) H01M 2/26 (2006.01) H01M 2/34 (2006.01) H01M 6/14 (2006.01)
Patent
CA 1187548
ELECTROCHEMICAL CELL Abstract of the Disclosure A primary electrochemical cell of a design for reducing parasitic self-discharge of the cell during storage and subsequent discharge of the cell. The cell includes a tubular porous carbon cathode structure dis- posed within a metal housing of the cell and spaced from an anode structure by an insulative separator material. The carbon cathode structure and the anode structure are exposed to an electrolytic solution including a reducible soluble cathode (e.g., thionyl chloride) which is cata- lytically reduced at the surface of the carbon cathode structure during discharge of the cell. The anode structure includes an elongated, cylindrical, lithium electrode located centrally within, and spaced from, the housing; an elongated solid or hollow glass or ceramic member having a first portion embedded within the lithium electrode and a second portion extending outwardly from the lithium electrode; an electrically-conductive metal material disposed on the first portion of the glass or ceramic member and in physical and electrical contact with the lithium elec- trode; and an electrically-conductive, flexible, metal jumper element connected between the electrically- conductive metal material and an elongated metal feed- through member in a top cover of the cell. The jumper element and the feedthrough member are selectively covered with a sufficiently chemically-stable, catalytically-inert anti-parasitic discharge material for preventing the undesirable catalytic reduction of the soluble cathode at the surfaces of the jumper element and feedthrough member covered by the anti-parasitic discharge material.
414823
Gte Products Corporation
R. William Wray & Associates
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