Method of manufacturing an electrochemical cell having an alkali

Details Method of manufacturing an electrochemical cell having an alkali Method of manufacturing an electrochemical cell having an alkali

1988-03-03

1989-02-07

Walton, Donald L.

Metal working

Method of mechanical manufacture

Electrical device making

429 94, H01M 426, H01M 1028

Patent

active

048022756

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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