Method of manufacturing an electrochemical cell having an alkaline electrolyte and spiral-wound electrodes
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United States of America Patent
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Feb 7, 1989
Grant Date -
N/A
app pub date -
Mar 3, 1988
filing date -
Mar 12, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of manufacturing an electrochemical cell having an alkaline electrolyte and spiral-wound electrodes, the method consisting in superposing four items: a positive electrode (2), a separator (4), a negative electrode (3), and another separator (5), with the two separators optionally being two lengths of a common separator; in winding these four items around a core (13) in order to obtain a roll (10); and in inserting said roll in the can (11) of the cell. The method includes the improvement whereby, at the end of the winding operation, the end of one of the elements is fixed on the preceding turn of the same element by means of a hot melt glue which is not soluble in said alkaline electrolyte.
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