Patent ID: 6132896
Filing Date: 2000-10-17
Classification: A61N,H01M,Y10T

Abstract:
A case-positive electrochemical cell, comprising:(a) a D-shaped titanium housing having first and second substantially parallel opposing interior surfaces spaced apart from one another;(b) a lithium anode disposed between the first and second surfaces and adjacent to the first interior surface,(c) a cathode in operative relation to the anode, the cathode comprising silver vanadium oxide cathode material, the cathode being formed into a non-circular pellet shape having an outer periphery and disposed between the first and second surfaces and adjacent to the second interior surface;(d) a cathode current collector circumferentially surrounding the cathode pellet, the cathode current collector confining the outer periphery of the cathode as the cathode expands upon electrical discharge of the cell;(e) means for electrically connecting the cathode current collector to the titanium housing; and(f) an insulator member insulating the titanium housing from contact with the cathode pellet.