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Wilson Greatbatch Ltd. Patents
Assignee:
Wilson Greatbatch Ltd.
Address:
Clarence, NY
No. of patents:
221
Patents:


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Patent Number Title Of Patent Date Issued
7069081 One piece header assembly for an implantable medical device June 27, 2006
The present invention is directed to a header assembly attachable to a medical device for the purpose of connecting its output terminals to at least one lead, the lead terminating at a target organ or portion of the body intending to be assisted. A number of leads are connectable to the
6975906 One piece header assembly over molded to an implantable medical device December 13, 2005
The present invention is directed to a header assembly attachable to a medical device for the purpose of connecting its output terminals to at least one lead, the lead terminating at a target organ or portion of the body intending to be assisted. A number of leads are connectable to the
6951576 Wound element electrode assembly design for use in prismatic case electrochemical cells October 4, 2005
An anode-cathode sub-assembly for an electrochemical cell wherein a combination of an elongated alkali metal anode and elongated solid cathode within separator therebetween is wound using a mandrel to form the sub-assembly having a jellyroll type configuration and wherein the winding
6893777 Current collector having non-symmetric grid pattern converging at a common focal point May 17, 2005
The present invention relates to a current collector for an electrochemical cell. The current collector has a unique grid structure comprised of a frame supporting a plurality of radial strands as conductors radiating outwardly from a focal point on a connector tab. The frame and radial
6797019 Electrochemical cell having an electrode of silver vanadium oxide coated to a current collector September 28, 2004
The invention is directed to an SVO electrochemical cell having high rate capability. The cathode is produced by coating a mixture of an active material, conductive additives, a mixed binder, and an aluminum foil current collector. The mixed binder consists of a mixture of heat treated
6797017 Preparation of .epsilon.-phase silver vanadium oxide from .gamma.-phase SVO starting material September 28, 2004
The current invention relates to the preparation of an improved cathode active material for non-aqueous lithium electrochemical cell. In particular, the cathode active material comprises .epsilon.-phase silver vanadium oxide prepared by using a .gamma.-phase silver vanadium oxide sta
6790561 Process for fabricating continuously coated electrodes on a porous current collector and cell de September 14, 2004
The invention is directed to an electrochemical cell having at least one of its electrodes produced by coating a slurry mixture of an active material, possibly a conductive additive, and a binder dispersed in a solvent and contacted to a perforated current collector foil. It is particula
6783888 Control of cell swelling by the proper choice of carbon monofluoride (CFx) cathode materials in August 31, 2004
The minimization or elimination of swelling in lithium cells containing CF.sub.x as part of the cathode electrode and discharged under high rate applications is described. When CF.sub.x materials are synthesized from fibrous carbonaceous materials, in comparison to petroleum coke, cell
6780542 Lithium oxyhalide cell with improved safety and voltage delay characteristics August 24, 2004
The present invention is directed to providing a lithium carbonate passivation layer on lithium through exposure of the active material to gaseous carbon dioxide prior to cell assembly. This results in an electrochemical cell which possesses improved safety and voltage delay characte
6759164 Use of heat-treated electrodes containing a polyamic acid-PVDF binder mixture July 6, 2004
A mixture of polymeric binders that is insoluble in nonaqueous organic electrolytes activating alkali metal or alkali metal ion electrochemical cells, is described. The mixed binder formulation provides electrodes that are flexible and non-brittle, and cells incorporating the electrodes
6759163 Mismatched compression glass-to-metal seal July 6, 2004
A reverse mismatched compression glass-to-metal seal is described. In this seal, the coefficient of thermal expansion of the insulating glass is lower than that of the terminal lead and, the ferrule or casing body has a similar or higher coefficient of thermal expansion than that of the
6743550 Double current collector cathode design using chemically similar active materials for alkali met June 1, 2004
The present invention relates to a new sandwich cathode design having two cathode active materials provided on opposite sides of a current collector. The respective active materials are similar in terms of, for example, their rate capability, their energy density, or some other param
6743547 Pellet process for double current collector screen cathode preparation June 1, 2004
An electrode having the configuration: first active material/current collector/second active material is described. One of the electrode active materials in a cohesive form of active particles being firmly held together as part of the same mass is incapable of moving through the curr
6737191 Double current collector negative electrode design for alkali metal ion electrochemical cells May 18, 2004
A new sandwich negative electrode design for a secondary cell is provided comprising a "sacrificial" alkali metal along with a carbonaceous anode material. In the case of a hard carbon anode material, the sacrificial alkali metal is preferably lithium and is sized to compensate for the
6733926 Electrochemical cell having a physical vapor deposited electrode and method of manufacture May 11, 2004
An electrode component for an electrochemical cell or a capacitor is described wherein the electrode is produced by physical vapor depositing an electrode active material onto a substrate to coat the substrate. The thusly produced electrode is useful as a cathode in a primary electro
6730437 Anode for nonaqueous secondary electrochemical cells May 4, 2004
The negative electrode or anode for a secondary electrochemical cell comprising a mixture of graphite or "hairy carbon" and a lithiated metal oxide, a lithiated mixed metal oxide or a lithiated metal sulfide, and preferably a lithiated metal vanadium oxide, is described. A most prefe
6727022 Powder process for double current collector screen cathode preparation April 27, 2004
The present comprises an electrode having the configuration: first active material/current collector screen/second active material. When one of the active materials is in a powder form, it is possible for that material to move through openings in the current collector screen to "contamin
6696201 Electrochemical cell having a cathode of a mixed phase metal oxide and method of preparation February 24, 2004
An electrochemical cell comprising an anode of a Group IA metal and a cathode of a mixed phase metal oxide prepared from a combination of starting materials comprising vanadium oxide and a mixture of at least one of a decomposable silver-containing constituent and a decomposable copp
6692871 Double current collector cathode design for alkali metal electrochemical cells having short circ February 17, 2004
A new sandwich cathode design having a first cathode active material of a relatively low energy density but of a relatively high rate capability sandwiched between two current collectors and with a second cathode active material having a relatively high energy density but of a relatively
6692865 Double current collector cathode design using mixtures of two active materials for alkali metal February 17, 2004
A new sandwich cathode design is provided having a first cathode structure of a first cathode active material of a relatively low energy density but of a relatively high rate capability, for example SVO, mixed with a second cathode active material having a relatively high energy density
6690512 Adjustable, ergonomic microscope base February 10, 2004
An ergonomic adjustable microscope device comprising a second base pivotably attached to a first base positioned on a support surface is described. The device includes a mechanism for locking a microscope in a nonmovably mounted relationship on the upper surface of the second support
6686088 Header insulator for an electrochemical cell February 3, 2004
A header insulator for an electrochemical cell is described. The header insulator provides a boss for the terminal ferrule, a boss for the fill ferrule, and at least one boss disposed along the length of the insulator to provide for alignment of the electrode assembly inside the case.
6685752 Method for providing a cathode of a mixed phase metal oxide February 3, 2004
An electrochernical cell comprising an anode of a Group IA metal and a cathode of a mixed phase metal oxide prepared from a combination of starting materials comprising vanadium oxide and a mixture of at least one of a decomposable silver-containing constituent and a decomposable cop
6677077 Electrochemical cell having multiplate electrodes with differing discharge rate regions January 13, 2004
An electrochemical cell comprising a medium rate electrode region intended to be discharged under a substantially constant drain and a high rate electrode region intended to be pulse discharged, is described. Both electrode regions share a common anode and are activated with the same
6673493 Double current collector cathode design using the same active material in varying formulations f January 6, 2004
A new sandwich cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. The formulations are then individually pressed on opposite sides of a current collector, so that both are in direct contact
6673487 Double current collector cathode design using the same active material in varying thicknesses fo January 6, 2004
A new sandwich cathode design is provided comprising a cathode active material provided in at least two different thicknesses. The different thickness cathode structures are then individually pressed on opposite sides of a current collector so that both are in direct contact with the
6671187 Protection device having a sleeve and method of assembling a battery with a protection device an December 30, 2003
A protection device for an electrical component that has a protective housing and a terminal cap. The protective housing has a base with a contact hole therethrough for accommodating an electrical terminal pin. A projecting perimeter wall extends from the base. A sleeve resides within
6670074 Glass to metal seal December 30, 2003
It has been discovered that the connection between a current collector and a molybdenum terminal pin can be improved by roughening the terminal pin. However, a roughened terminal pin detracts from the integrity of the glass-to-metal seal. To overcome this, a sleeve or couple surrounds th
6659283 Capacitor grade powders December 9, 2003
The present invention is directed to a method of purifying capacitor grade powders. The capacitor grade powder is initially placed into a purifying machine that disperses at least one contaminate into the capacitor grade powder. The powder is then placed into a magnetic separation device
6656631 Battery housing, electricity delivering system and method of delivering electricity December 2, 2003
The present invention includes a housing having a casing and a cap. A connecting conductor is joined to the cap, and a plunger conductor assembly is electrically connected to the connecting conductor. A battery may be placed in the casing and electrically connected to an electrically
6645670 Efficient cell stack for cells with double current collectors sandwich cathodes November 11, 2003
The present invention improves the performance of lithium electrochemical cells by providing a new electrode assembly based on a sandwich cathode design, but termed a double screen sandwich cathode electrode design. In particular, the present invention uses sandwich cathode electrodes wh
6641953 Secondary cell with high rate pulse capability November 4, 2003
A rechargeable lithium-ion cell capable of being discharged to deliver high power pulses sufficient for implantable defibrillation applications and the like, is described. The cell is housed in a casing having an external volume of 5 cm.sup.3, or less. Both the negative and positive elec
6635381 Electrochemical lithium ion secondary cell having a scalloped electrode assembly October 21, 2003
A lithium ion secondary battery having an irregular shape with a unitary anode and unitary cathode that are spirally wound and that provide a high energy density for an implantable biomedical device.
6627337 Conversion of low rate energy into high rate energy by parallel discharging September 30, 2003
An electrode configuration for use in a defibrillator battery to improve the battery capacity and its utilization efficiency by using a combination SVO cell and a CF.sub.x cell discharged in parallel, is described. In other words, the anode of the SVO cell is connected to the anode of th
6626680 Wire bonding surface September 30, 2003
A bonding pad for connecting an electrical energy storage device to an implantable medical device, is described. The bonding pad comprises at least two contact surfaces, one have a channel for receiving the terminal lead of the electrical energy storage device, the other being relatively
6623887 Silver vanadium oxide cathode material for high discharge rate lithium cells September 23, 2003
A method for synthesizing a mixture of .epsilon.-SVO (Ag.sub.2 V.sub.4 O.sub.11) and .gamma.-SVO (Ag.sub.1.6 V.sub.4 O.sub.10.8) by a two-step raw materials mixing process, is described. .gamma.-SVO is the preferred SVO in terms of electrochemical performance, such as reduced Rdc growth
6623884 Electrochemical lithium ion secondary cell having multiplate and jellyroll electrodes with diffe September 23, 2003
A secondary electrochemical cell comprising a medium rate electrode region in a side-by-side electrode plate configuration intended to be discharged under a substantially constant drain and a high rate electrode region disposed in a jellyroll wound configuration intended to be pulse
6618273 Trace fuse September 9, 2003
A power providing device that has a battery, a protective housing a terminal cap, and a fuse on a substrate.
6617953 Link fuse September 9, 2003
A power providing device that has a battery, a protective housing a terminal cap and a fuse.
6613474 Electrochemical cell having a casing of mating portions September 2, 2003
The present invention is directed to an electrochemical cell having plate electrodes housed inside mating "clam shell" casing components. Also, the present casing design allows for indentation structures in the casing components by virtue of them being stamped metal parts. Such indentati
6610443 One-piece header assembly for hermetic battery terminal feedthrough, fill and closure designs August 26, 2003
The present invention is directed to an electrochemical cell having plate electrodes housed inside mating "clam shell" casing components. When mated together, the casing components are form-fitting with respect to the internal battery structure so as to reduce the overall size of the
6607861 Application of .gamma.-SVO and mixture of .gamma.-SVO/.epsilon.-SVO in high rate electrochemical August 19, 2003
Lithium electrochemical cells having a sandwich cathode electrode of SVO/CF.sub.x /SVO active materials are described. Such a design improves the service life of defibrillator electrochemical cells. A preferred formulation uses .gamma.-SVO/CF.sub.x /.gamma.-SVO or (.gamma.+.epsilon.)
6605385 Electrochemical cell having an electrode with a carbonate additive in the electrode active mixtu August 12, 2003
An electrochemical cell of either a primary or a secondary chemistry, is described. In either case, the cell has a negative electrode of lithium or of an anode material which is capable of intercalating and de-intercalating lithium coupled with a positive electrode of a cathode activ
6599580 Method for improving electrical conductivity of a metal oxide layer on a substrate utilizing hig July 29, 2003
A method for improving the electrical conductivity of a substrate of metal, metal alloy or metal oxide comprising depositing a small or minor amount of metal or metals from Group VIIIA metals (Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt) or from Group IA metals (Cu, Ag, Au) on a substrate of meta
6594139 Physical vapor deposited electrode and method of manufacture July 15, 2003
An electrode component for an electrochemical cell or a capacitor is described wherein the electrode is produced by physical vapor depositing an electrode active material onto a substrate to coat the substrate. The thusly produced electrode is useful as a cathode in a primary electro
6593029 Manufacturing process for improved discharge of lithium-containing electrochemical cells July 15, 2003
In primary cells, the addition of gaseous carbon dioxide to the nonaqueous electrolyte has beneficial effects in terms of minimizing or eliminating voltage delay and reducing Rdc build-up when the cell is subjected to pulse current discharge conditions. For secondary systems, carbon diox
6593028 Separator envelope for swelling in electrochemical cells July 15, 2003
A casing having substantially parallel side walls connected by a curved end wall receives a cathode electrode having substantially parallel opposed side walls connected by end walls. The cathode electrode is enclosed by a separator envelope that substantially conforms to an upper surface
6586134 Electrode lead to case and header, laser/electron beam welding July 1, 2003
The present invention provides a new process for attaching the anode lead to the battery case, creating a case negative design. The anode lead is an extension of the anode current collector and is nested between the case and the lid. Excess lead material is ground or cut off and the case
6586131 Apparatus for releasing gases from rechargeable lithium electrochemical cells during the formati July 1, 2003
An alkali metal secondary electrochemical cell, and preferably a lithium ion cell, provided with a removable gas relief valve, is described. The gas release valve is positioned on the casing, in fluid flow communication between the inside thereof and the exterior. This gas release valve
6582545 Process for fabrication of low basis weight electrode active blanks June 24, 2003
The present invention is directed to the realization that the dimensions and basis weight of an electrode active admixture such as a transition metal oxide, and particularly silver vanadium oxide, formed into an electrode structure from an admixture paste subjected to a calendering p
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