Abstract: Fabricating a capacitor includes forming conduits in a porous layer of material. The porous layer of material has particles that each include a dielectric on a core. The formation of the conduits causes a portion of the dielectric to convert from a first phase to a second phase. The method also includes removing at least a portion of the second phase of the dielectric from the porous layer of material.

Abstract: Fabricating a capacitor includes forming conduits in a porous layer of material. The porous layer of material has particles that each includes a dielectric on a core. The formation of the conduits causes a portion of the dielectric to convert from a first phase to a second phase. The method also includes removing at least a portion of the second phase of the dielectric from the porous layer of material.

Abstract: The battery includes an electrode assembly in an interior of an electrically insulating container. The electrode assembly includes one or more first electrodes alternated with one or more second electrodes. The container is positioned is in an interior of an electrically conducting battery case. The container being is constructed such that the battery case is not in electrical communication with the one or more first electrodes and the one or more second electrodes, and such that an electrolyte positioned in an interior of the container does not contact the battery case.

Abstract: Preparing a battery electrode includes preparing a slurry having a solid content less than 80 wt %. The slurry includes ingredients in one or more solvents. The ingredients are components of an active medium of the battery electrode. The slurry is mixed so as to apply a shear rate higher than 94200/minute to the slurry and form a mixed slurry. The ingredients are separated from the one or more solvents in the mixed slurry. The ingredients are applied to a current collector after the ingredients are separated from the one or more solvents in the mixed slurry.

Abstract: A capacitor has an anode with one or more active layers that each includes fused particles positioned on a current collector. The current collector includes tunnels that extend from a first face of the current collector to a second face of the current collector.

Abstract: Fabricating a capacitor includes forming conduits in a porous layer of material. The porous layer of material has particles that each includes a dielectric on a core. The formation of the conduits causes a portion of the dielectric to convert from a first phase to a second phase. The method also includes removing at least a portion of the second phase of the dielectric from the porous layer of material.

Abstract: A capacitor has an anode with one or more active layers that each includes fused particles positioned on a current collector. The current collector includes tunnels that extend from a first face of the current collector to a second face of the current collector.

Abstract: Fabricating a capacitor includes forming conduits in a porous layer of material. The porous layer of material has particles that each includes a dielectric on a core. The formation of the conduits causes a portion of the dielectric to convert from a first phase to a second phase. The method also includes removing at least a portion of the second phase of the dielectric from the porous layer of material.

Abstract: A feedthrough assembly for an implantable medical device includes a ferrule, an inner conductor, and an insulating core. The ferrule has a lumen. The inner conductor extends through the lumen of the ferrule. The inner conductor has a first material composition. The insulating core is disposed within the lumen of the ferrule and separates the inner conductor from the ferrule. The insulating core has a second material composition that is different from the first material composition of the inner conductor. A coefficient of thermal expansion (CTE) of the inner conductor is no less than the CTE of the insulating core. The inner conductor is bonded to the insulating core to form a glass-to-metal seal between the inner conductor and the insulating core.

Abstract: A method of screening a battery for failure mechanisms is provided. The method may include activating an electrochemical cell. Within 5 minutes to two hours of activating the cell, the open circuit voltage of the cell is measured over a period of time to determine a voltage versus time function. The cell is then screened for the presence of a failure mechanism by checking the voltage versus time function for a failure criteria.

Abstract: A method includes mixing a solvent with a dry cathode mixture to form a slurry. The dry cathode mixture includes a cathode active material, a conductive diluent, and a polymeric binder. The method further includes removing the solvent from the slurry to form a composition and calendering, in a first calendering step, the composition to form a sheet. The calendering the composition includes passing the composition between calender rollers.

Abstract: An implantable medical device, battery and method include memory configured to store program instructions. At least one of circuitry or a processor are configured to execute the program instructions in connection with at least one of monitoring a biological signal or administering a therapy. The device includes a battery comprising a cell stack that includes an anode, a cathode, and one or more separator layers electrically insulating the anode from the cathode. The device includes a case having a feedthrough port and a feedthrough assembly disposed in the feedthrough port. The feedthrough assembly includes a ferrule having a lumen. An inner conductor is disposed within the lumen of the ferrule. The inner conductor is formed from a material having a first composition and a first coefficient of thermal expansion (CTE). An insulating core is disposed within the lumen of the ferrule and separates the inner conductor from the ferrule.

Abstract: A capacitor has an anode with one or more active layers that each includes fused particles positioned on a current collector. The current collector includes tunnels that extend from a first face of the current collector to a second face of the current collector.

Abstract: A capacitor has an anode with one or more active layers that each includes fused particles positioned on a current collector. The current collector includes tunnels that extend from a first face of the current collector to a second face of the current collector.

Abstract: Batteries having hybrid electrode configurations are disclosed herein. In one embodiment, a battery comprises an electrode assembly. The electrode assembly comprises a first cathode including a first cathode active material, a second cathode including a second cathode active material different from the first cathode active material, a first anode disposed between the first cathode and the second cathode, a first separator interposed between the first cathode and the first anode, and a second separator interposed between the second cathode and the first anode.

Abstract: A method of fabricating a battery electrode includes forming a mixture including an electrode material and a binder; forming an electrode blank from the mixture; heating the electrode blank at a predetermined temperature for a predetermined time to form an annealed electrode blank; and laminating the annealed electrode blank to a current collector. The current collector may include a conductive carbon coating. In such event, the method may further include heating the current collector at a selected temperature for a selected time prior to laminating the annealed electrode blank to the current collector.

Abstract: An implantable medical device, battery and method include memory configured to store program instructions. At least one of circuitry or a processor are configured to execute the program instructions in connection with at least one of monitoring a biological signal or administering a therapy. The device includes a battery comprising a cell stack that includes an anode, a cathode, and one or more separator layers electrically insulating the anode from the cathode. The device includes a case having a feedthrough port and a feedthrough assembly disposed in the feedthrough port. The feedthrough assembly includes a ferrule having a lumen. An inner conductor is disposed within the lumen of the ferrule. The inner conductor is formed from a material having a first composition and a first coefficient of thermal expansion (CTE). An insulating core is disposed within the lumen of the ferrule and separates the inner conductor from the ferrule.

Abstract: A method of fabricating a battery electrode includes forming a mixture including an electrode material and a binder; forming an electrode blank from the mixture; heating the electrode blank at a predetermined temperature for a predetermined time to form an annealed electrode blank; and laminating the annealed electrode blank to a current collector. The current collector may include a conductive carbon coating. In such event, the method may further include heating the current collector at a selected temperature for a selected time prior to laminating the annealed electrode blank to the current collector.

Abstract: A method of screening a battery for failure mechanisms is provided. The method may include activating an electrochemical cell. Within 5 minutes to two hours of activating the cell, the open circuit voltage of the cell is measured over a period of time to determine a voltage versus time function. The cell is then screened for the presence of a failure mechanism by checking the voltage versus time function for a failure criteria.

Abstract: A method of screening a battery for failure mechanisms is provided. The method may include activating an electrochemical cell. Within 5 minutes to two hours of activating the cell, the open circuit voltage of the cell is measured over a period of time to determine a voltage versus time function. The cell is then screened for the presence of a failure mechanism by checking the voltage versus time function for a failure criteria.