Patent ID: 6508901
Filing Date: 2003-01-21
Classification: B29C,B29K,B29L,H01M,Y02E,Y10T

Abstract:
A system for sealing individual sheets of separator material around an electrode, the system comprising:a computer controlled cutting system for cutting openings in the separator material; a heat sealing fixture having an upper platen comprising a molded resilient member mounted on a block, the resilient member having at least one cavity defined therein corresponding to the shape of the electrode, and a lower platen with a dielectric plate mounted on a block, the dielectric plate having a precision track defined therein, the precision track corresponding to the shape of the electrode, the lower platen having at least two first guide pins for locating the sheet of separator material and having at least two second guide pins for locating the electrode on the fixture; a heating element disposed inside the track and having a raised portion for cutting and a flat portion for sealing the sheet of separator material about the electrode; and, a press operatively associated with the heat sealing fixture such that the upper and lower platens are pressed together such that the upper platen acts as a pressure pad to cut and seal the separator material between the pressure pad and the heating element.