Feedthrough pin insulator, assembly and method for electrochemical cell

摘要

A feedthrough pin insulator and corresponding assembly for an electrochemical cell powering an implantable medical device are described herein. The feedthrough pin insulator electrically insulates a feedthrough pin extending between the internal and external portions of the cell from cell components having the same electrical potential as a cathode disposed within the cell. The feedthrough pin insulator extends between an anode disposed within the cell and a ferrule disposed in an aperture of a cover for sealing the cell. A gate or dam is disposed at one end of the insulator for preventing or inhibiting the formation of anode flash on the feedthrough pin or in other undesired locations or on certain cell components during the anode formation process. A method of forming an anode is also described which corresponds to the foregoing apparatus.