Abstract: A battery assembly comprises a battery housing that defines an opening and includes one of a first engagement member and a second engagement member. A feedthrough member is disposed with the opening and extends from the battery housing. A connector includes at least one electrical terminal electrically communicating with the feedthrough member and includes one of a first engagement member and a second engagement member. The engagement members are disposable in a mating configuration to assemble the battery housing and the connector. Implantable medical devices, systems and methods are disclosed.

Abstract: A battery assembly comprises a battery housing that defines an opening and includes one of a first engagement member and a second engagement member. A feedthrough member is disposed with the opening and extends from the battery housing. A connector includes at least one electrical terminal electrically communicating with the feedthrough member and includes one of a first engagement member and a second engagement member. The engagement members are disposable in a mating configuration to assemble the battery housing and the connector. Implantable medical devices, systems and methods are disclosed.

Abstract: An encasement for an electrochemical cell and method of making such encasement is discloses. The design of the encasement results in an encasement having an area of high stress located away from the weld zone area of the encasement, where the cover and the case are welded together.

Abstract: An encasement for an electrochemical cell and method of making such encasement is discloses. The design of the encasement results in an encasement having an area of high stress located away from the weld zone area of the encasement, where the cover and the case are welded together.

Abstract: A battery feedthrough comprises a ferrule having a passage extending from a first side to a second side, a pin extending through the passage, an insulation sleeve disposed between the pin and the ferrule within the passage, there being a first junction between the pin and the insulation sleeve and a second junction between the insulation sleeve and the ferrule, and a coating comprising a polymer disposed over the pin on the first side of the ferrule, wherein the coating is formed by forming a preform comprising the polymer, placing the preform around at least a first portion of the pin on the first side of the ferrule, and melting the preform so that the polymer substantially covers a second portion of the pin, the first junction, a portion of the insulation sleeve, the second junction, and a portion of the ferrule on the first side of the ferrule.

Abstract: Lithium is a soft malleable metal and sticks to most materials when a fresh surface is exposed. Currently lithium anodes are pressed in a die with temporary polymer components protecting the pressing die. During anode pressing, the lithium anode sticks to these temporary components. They facilitate easy release of the lithium anode from the die via operator intervention. The pressed anode is then manually wrapped with a micro-porous polymeric separator material and built into the battery. This process is labor intensive and would be difficult to automate. By utilizing a formed polymer cup on the anode, both the anode pressing process and separator sealing process would be simplified and have potential options for automation. The cup would allow easy release from the anode pressing die and provide some of the insulation of the anode from regions of opposite polarity.

Abstract: A terminal platform comprising a first terminal block securable to a housing of the battery, a second terminal block configured to electrically connect to a terminal wire of the battery, and an insulating support electrically isolating the second terminal block from the first terminal block.

Abstract: A terminal platform comprising a first terminal block securable to a housing of the battery, a second terminal block configured to electrically connect to a terminal wire of the battery, and an insulating support electrically isolating the second terminal block from the first terminal block.

Abstract: Vulnerable surfaces of feedthroughs employed in electrochemical cells or batteries, particularly miniaturized, high energy density primary batteries for implantable medical devices (IMDs), are provided with protective coatings to protect from degradation by the cell electrolyte or deposition of conductive materials bridging the feedthrough pin and ferrule. A liquid polyimide coating is applied to the vulnerable surfaces and cured into a substantially uniformly thick polyimide coating that tenaciously adheres to the vulnerable surfaces during subsequent welding and molding assembly steps. A further insulator is preferably molded in situ of a polymer adhere wells to the polyimide coating during molding. Gaps between the insulator and the polyimide coating are advantageously minimized.

Abstract: In electrochemical cells for medical devices having anodes assemblies, an anode assembly includes a folded lithium element having a first and second section. The first and second sections are for receiving a current collector therebetween. A method of forming an anode arrangement includes a step of folding a lithium element having the first and second sections with a current collector positioned therebetween. Thereafter, a pressing step is performed.

Abstract: In electrochemical cells for medical devices having anodes assemblies, an anode assembly includes a folded lithium element having a first and second section. The first and second sections are for receiving a current collector therebetween. A method of forming an anode arrangement includes a step of folding a lithium element having the first and second sections with a current collector positioned therebetween. Thereafter, a pressing step is performed.

Abstract: In electrochemical cells for medical devices having anodes assemblies, an anode assembly includes a folded lithium element having a first and second section. The first and second sections are for receiving a current collector therebetween. A method of forming an anode arrangement includes a step of folding a lithium element having the first and second sections with a current collector positioned therebetween. Thereafter, a pressing step is performed in an oversized die.

Abstract: A cover for an electrochemical cell is molded by a metal injection molding process. The cover includes a main body portion completely integral with a feedthrough ferrule portion for accommodating an electrical lead to pass through the cover and/or completely integral with a fillport portion for introducing cathode material into the cell.

Abstract: An electrical feedthrough apparatus, for an electrochemical cell, is formed by a method that includes forming a feedthrough subassembly by providing a ferrule having an exterior surface and an interior opening about a longitudinal axis therethrough. The interior opening extends along the longitudinal axis of the ferrule from a first end of the ferrule to a second end of the ferrule. An electrical conductor is glassed in the opening of the ferrule. A locating member is positioned onto the ferrule in contact with the exterior surface of the ferrule in proximity to the first end of the ferrule and the locating member has a length extending beyond the second end of the ferrule. The feedthrough subassembly is then located at a position in a mold using the locating member and held in the position with the use of the locating member while insulating material is injected into the mold.

Abstract: A lithium halide button cell formed of simplified sub-assemblies including one such subassembly in which molten cathode material is poured into a retaining ring and allowed to solidify therein before incorporation into the cell.

Abstract: A lithium halide button cell formed of simplified sub-assemblies including one such subassembly in which molten cathode material is poured into a retaining ring and allowed to solidify therein before incorporation into the cell.

Abstract: A method for making a primary cell comprising a lithium anode and an iodine containing cathode. The cell is first subjected to a preliminary conditioning at a predetermined time/temperature to effect a reduction in the impedance of the cell followed by cell discharge of at least 2 mAh per cm.sup.2 of the lithium anode surface prior to use or extended storage of the cell. The resulting primary cell has reduced variation in cell voltage and resistance and slower and more consistent self-discharge characteristics.