Mixed cathode formulation for achieving end-of-life indication

Details Mixed cathode formulation for achieving end-of-life indication Mixed cathode formulation for achieving end-of-life indication

1996-05-10

1997-09-16

Nuzzolillo, M.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429219, 429220, 429221, H01M 402

Patent

active

056679165

ABSTRACT:
Battery-powered implantable medical devices require a suitable method for indicating end-of-service of the power source so that there is ample time for elective replacement of the device and/or power source. The present invention utilizes mixed cathode materials preferably comprising a major portion of a fluorinated carbon and a minor portion of a metal-containing material. This mixed cathode formulation is characterized by two, discretely different operating voltages, the second of which may be used as an end-of-life indicator.

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