Patent ID: 7273674
Filing Date: 2007-09-25
Classification: H01M,Y02E,Y10T

Abstract:
1. An electrochemical cell, which comprises: a) a casing comprising a curved wall extending to an opening closed by a lid; b) an anode comprising a plurality of anode portions joined by anode connecting portions, wherein the anode portions comprise an anode current collector supporting lithium; c) a cathode comprising a plurality of cathode portions joined by cathode connecting portions, wherein the cathode portions comprise a cathode current collector supporting a cathode active material which intercalates with lithium; d) a separator disposed between the anode and the cathode as an electrode assembly housed in the casing with a periphery of the anode and cathode portions substantially following a contour of the curved wall of the casing; e) an electrolyte activating the electrode assembly; f) wherein the cell has either: