Chemistry: electrical current producing apparatus – product – and – Process of cell operation
Patent
1981-07-23
1983-10-04
Ozaki, G.
Chemistry: electrical current producing apparatus, product, and
Process of cell operation
429 48, 429 65, 429 7, 429105, H01M 1044, H01M 1400, H01M 600, H01M 620
Patent
active
044079095
ABSTRACT:
A method for completing the discharge of a primary electrochemical cell in which the discharge has prematurely ceased or has significantly diminished. A primary electrochemical cell to which the method of the invention is applicable includes a plurality of anode and cathode structures arranged in alternation, and an electrolytic solution. Each of the anode structures and the electrolytic solution includes a component subject to consumption by chemical action within the cell during discharge. The anode and cathode structures are connected to external electrical terminals of the cell by way of metal tabs and metal bus bar assemblies. In the event of the occurrence of an open circuit break or other impairment of the internal electrical connections between the anode and cathode structures and the external electrical terminals resulting in a cessation or significant diminishing of the discharge of the cell, the discharge of the cell is completed by introducing a moderately electrically-conductive load shunt material, such as a carbon material, into the cell to bridge the internal electrical metal tabs and bus bar assemblies. The material is selected to be chemically inert with the internal components of the cell and operates to establish an internal electrical load shunt across the metal tabs and bus bar assemblies for permitting discharge of the cell until consumable components of the cell have been consumed by chemical reaction within the cell causing termination of chemical action within the cell.
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GTE Products Corporation
Kalafut Stephen J.
Keay David M.
Ozaki G.
Xiarhos Peter
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