Patent ID: 6045943
Filing Date: 2000-04-04
Classification: H01M,Y02E

Abstract:
A battery, which comprises:a) an anode electrode including an anode current collector supporting an anode active material, wherein the anode current collector consists of at least three longitudinal anode plates extending in a longitudinal direction and at least one lateral anode plate, wherein the longitudinally extending anode plates begin with a first anode plate directly connected to a second anode plate by a first longitudinal anode current collector portion only extending parallel to the longitudinal direction and with the second anode plate directly connected to a third anode plate by a second longitudinal anode current collector portion only extending parallel to the longitudinal direction and the longitudinally extending anode plates continuing sequentially in that manner to a second to last anode plate directly connected to a last anode plate by a last longitudinal anode current collector portion only extending parallel to the longitudinal direction, and wherein the at least one lateral anode plate, extends in a substantially perpendicular direction directly connected to one of the longitudinal anode plates by a lateral anode current collector portion only extending perpendicular to the longitudinal direction;b) a cathode electrode including a cathode current collector supporting cathode active material, wherein the cathode current collector consists of at least three longitudinal cathode plates extending in the longitudinal direction and at least one lateral cathode plate, wherein the longitudinally extending cathode plates begin with a first cathode plate directly connected to a second cathode plate by a first longitudinal cathode current collector portion only extending parallel to the longitudinal direction and with the second cathode plate directly connected to a third cathode plate by a second longitudinal cathode current collector portion only extending parallel to the longitudinal direction and the longitudinally extending cathode plates continuing sequentially in that manner to a second to last cathode plate directly connected to a last cathode plate by a last longitudinal cathode current collector portion only extending parallel to the longitudinal direction, and wherein the at least one lateral cathode plate, extends in a substantially perpendicular direction directly connected to one of the longitudinal cathode plates by a lateral cathode current collector portion only extending perpendicular to the longitudinal direction;c) a separator disposed between the anode electrode and the cathode electrode, wherein the at least one lateral anode plate is foldable toward the longitudinally extending anode plate from which it is connected by the lateral anode current collector portion to form at least one anode plate pair and the at least one lateral cathode plate is foldable toward the longitudinally extending cathode plate from which it is connected by the lateral cathode current collector portion to form at least one cathode plate pair, and wherein the anode and the cathode are operatively associated with each other such that at least one of the longitudinally extending anode plates is interleavable between the cathode plate pair and such that at least one of the longitudinally extending cathode plates is interleavable between the anode plate pair and wherein the resulting operatively associated and longitudinally extending anode and cathode plates are then foldable along the respective longitudinal current collector portions connecting between them to provide the battery as an electrode stack of alternating anode and cathode plates; andd) an electrolyte activating and operatively associating the anode electrode and the cathode electrode.