Abstract: An electrochemical cell, comprising: an encasement including a case having a bottom and a sidewall terminating at an open top and a cover disposed over the case open top and hermetically sealed to the case, the encasement defining an interior space for containing cell components; and an access port defining at least one lumen extending through any of the case bottom, the case sidewall or the cover for receiving a liquid electrolyte, the access port being sealed closed after receiving the liquid electrolyte using a fusion welding method in the presence of the electrolyte.

Abstract: A current collector for a battery in an implantable medical device is presented. The current collector comprises a layer which includes a first surface and a second surface. For a cathode electrode plate, the layer possesses a lower resistivity of less than or about 2.7 Ohm meters (?)×108. For an anode electrode plate, the layer possesses a resistivity of about 2.5 ?×108 to about 7 ?m×108.

Abstract: An electrochemical cell, comprising: an encasement including a case having a bottom and a sidewall terminating at an open top and a cover disposed over the case open top and hermetically sealed to the case, the encasement defining an interior space for containing cell components; and an access port defining at least one lumen extending through any of the case bottom, the case sidewall or the cover for receiving a liquid electrolyte, the access port being sealed closed after receiving the liquid electrolyte using a fusion welding method in the presence of the electrolyte.

Abstract: Methods and structures are provided for electrically coupling a conductor and a conductive element comprising a dissimilar material. A method for electrically coupling a first element comprising a first conductive material to a conductor formed of a dissimilar second material comprises cladding a second conductive element with the conductor. The second element comprises a facilitator material that facilitates the melting of the dissimilar material. A third element comprising a third conductive material that is metallurgically compatible with the facilitator material is cladded with a fourth element comprising a fourth conductive material that is metallurgically compatible with the first conductive material to form a connector. The fourth element is welded to the first element and the second element is welded to the third element.

Abstract: A method of manufacturing a lithium battery includes providing a first current collector in contact with at least a portion of an electrode configured for use within a lithium battery and attaching the first current collector to the electrode by laser welding.

Abstract: Embodiments of the invention provide an electrochemical cell including an electrode assembly having one or more of the electrodes being coupled to a feedthrough assembly. The one or more electrodes each include a connection tab. The connection tab extends a distance from separation material between the one or more electrodes (e.g., anode and cathode). The connection tab is provided to contact (e.g., electrically connected) a feedthrough pin of the feedthrough assembly by laser welding. The feedthrough pin with respect to the connection tab is oriented in at least one position lying within a 90 degree orientation on the connection tab. The feedthrough pin is coupled to the connection tab by laser welding.

Abstract: Laser penetration of tabs from electrode plates is presented. A set of tabs associated with a set of electrode plates are aligned. Either resistance spot welding or ultrasonic welding is used to hold the set of tabs together. A laser penetration weld is created through the set of tabs by a single pulse laser weld or multiple-pulse laser weld. The set of tabs is greater than two tabs.

Abstract: Laser penetration of tabs from electrode plates is presented. A set of tabs associated with a set of electrode plates are aligned. A laser penetration weld is created through the set of tabs by a single pulse laser weld or multiple-pulse laser weld. The set of tabs is greater than two tabs.