Abstract: An insulated terminal for use in an electrochemical cell includes a terminal post and a polymeric insulating material forming a compression seal around the terminal post that maintains an hermetic seal over a temperature range of about ?40° C. to +75°. A terminal for use in an electrochemical cell including a housing and an electrolyte within the housing includes a terminal post having an electrolyte contacting section including a first metal. The first metal is adapted to contact the electrolyte of the electrochemical cell. The terminal post further includes a contact section in electrically conductive connection with the electrolyte contacting section and being adapted to extend outside of the housing of the electrochemical cell. The contact section includes a sealing section including a second metal that is harder than the first metal. The sealing section also includes an insulating material which is held in sealing contact with the second metal of the sealing section via compression.