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US 2014/0207221 A1Published application
Capacitor electrolyte
AssigneeMedtronic, Inc.
InventorsMark E. Viste, John D. Norton, Joachim Hossick-Schott, Anthony W. Rorvick
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Abstract
A capacitor for an implantable medical device is presented. The capacitor includes an anode, a cathode, a separator therebetween, and an electrolyte over the anode, cathode, and separator. The electrolyte includes ingredients comprising acetic acid, ammonium acetate, phosphoric acid, and tetaethylene glycol dimethyl ether. The capacitor has an operating voltage ninety percent or greater of its formation voltage.
Claims21
1-40. (canceled)
An implantable cardioverter-defibrillator comprising an electrolytic capacitor comprising:
- an anode comprising tantalum;
- a cathode;
- a separator coupled to the anode and the cathode;
- an electrolyte comprising water and one or more ingredients selected from acetic acid, ammonium acetate, phosphoric acid, and tetraethylene glycol dimethyl ether;
- and
- an oxide layer on the anode that is formed at a formation voltage.
3 more elements
Dependencies are inferred from the claim text.