Patent ID: 6326102
Filing Date: 2001-12-04
Classification: H01M,Y10T

Abstract:
An electrochemical cell comprising:a container having a closed bottom end and an open top end;a first electrode disposed in said container and having a first polarity, wherein said first electrode is a cathode;a second electrode disposed in said container and having a second polarity, wherein said second electrode is an anode, and said second electrode disposed on one side of said first electrode;a first current collector disposed in contact with said first electrode;an outer electrochemically active layer having said second polarity and disposed on another side of said first electrode;a separator disposed between said first electrode and said second electrode, said separator further disposed between said first electrode and said outer electrochemically active layer;a second current collector connected in contact with said second electrode; anda cover assembly assembled to said open top end of said container;wherein said first current collector comprises a conductive grid embedded in said first electrode, and wherein said first electrode includes an inner layer and an outer layer, with said conductive grid integrally molded between said inner and outer layers, said inner and outer layers of said first electrode each comprising more than one ring.