Wilson Greatbatch Ltd.

W. Greatbatch Ltd.

Michael A Zelinsky

Steven J Ebel

Barry C Muffoletto

Ralph T Mead

John M Greenwood, Jr

Pamela P Keister

Christine A Frysz

Esther S Takeuchi

Michael F Pyszczyk

Ester S Takeuchi

John M Greenwood

An electrochemical cell is provided having a metallic anode comprising a lithium-aluminum alloy, a solid cathode of electronically conductive material and an ionic conductive non-aqueous electrolyte solution operatively associated and in direct contact with the anode and cathode. The metallic anode comprises a lithium-aluminum alloy wherein aluminum comprises from about 0% to about 50% by weight of the alloy. The solid cathode comprises a fluorinated carbon such as poly carbon monofluoride, a metal oxide or a metal oxide bronze. The non-aqueous electrolyte solution comprises a first component consisting of a high boiling aprotic solvent or combinations thereof, and a second component consisting of at least one lithium salt. The electrochemical cell demonstrates an energy density of about 0.6WH/CC and exhibits consistent performance predictability over an operational range of from about -20.degree. C. to about 180.degree. C.

High energy density non-aqueous electrolyte lithium cell operational

A solid cathode liquid organic electrolyte lithium cell for delivering high current pulses comprising a casing, a cathode structure in the casing comprising a plurality of plates in spaced apart relation, a lithium anode comprising a plurality of anode sections interposed between the cathode plates, a non-aqueous liquid organic electrolyte comprising the combination of a lithum salt and an organic solvent in the casing operatively contacting the anode and the cathode an electrical connection provided to the anode and an electrical connection provided to the cathode. In accordance with one aspect of the invention the cathode includes as active material Ag.sub.x V.sub.2 O.sub.y where x is in the range from about 0.5 to about 2.0 and y is in the range from about 4.5 to about 6.0 which advantageously has high volumetric capacity and high rate capability with the result that the cell of the present invention delivers high capacity, shows good current pulsing behavior at various levels of discharge, and has a sloping discharge cause enabling end of life to be predicted.

Non-aqueous lithium battery

A solid cathode liquid organic electrolyte lithium cell for delivering high current pulses comprising a casing, a cathode structure inthe casing comprising a plurality of plates in spaced apart relation, a lithium anond comprising a plurality of anode sections interposed between the cathode plates, a non-aqueous liquid organic electrolyte comprising the combination of a lithum dalt and an organic solvent in the casing operatively contacting the anode and the cathode an electrical connection provided to the anode and an electrical connection provided to the cathode. In accordance with one aspect of the invention the cathode includes as active material Ag.sub.x V.sub.2 O.sub.y where x is in the range from about 0.5 to about 2.0 and y is in the range from about 4.5 to about 6.0 which advantageously has high volumetric capacity and high rate capability with the result that the cell of the present invention delivers high capacity, shows good current pulsing behavior at various levels of discharge, and has a sloping discharge cause enabling end of life to be predicted. In accordance with another aspect of the present invention, the anode comprises a continuous elongated lithium element enclosed within a separator and folded into a plurality of sections interposed between the cathode plates, each of which individually is enclosed within separator material thereby enhancing the reliability of the cell. The cell of the present invention finds advantageous use as a power source for an implantable cardiac defibrillator.

Non-agueous lithium battery

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Lancaster, NY, United States of America

Michael A Zelinsky