Internal electrode and assembly method for electrochemical cells

摘要

An electrode for an alkali metal electrochemical cell comprising a unitary conductive body having a pair of wing-like sections joined by an intermediate web section. The cell anode or cathode parts are in contact with corresponding ones of the electrode wing sections, and the electrode web section is adapted to be placed in contact with the cell conductive casing. This results in a case negative or case positive electrical configuration depending upon whether the anode or cathode parts are in contact with the electrode wing sections. In forming an anode-cathode sub-assembly the anode or cathode parts are joined to the electrode wing sections and then the electrode wing sections are folded relative to the electrode web section and toward each other in a manner to place the anode and cathode parts in operative contact with each other. The internal electrode and assembly method advantageously require only the electrode intermediate web section to be bonded to the cell casing thereby allowing the cell to be assembled in a relatively quick and easy manner.