Patent ID: 7399554
Filing Date: 2008-07-15
Classification: H01M,Y02E

Abstract:
1. A multi-cell hybrid rechargeable battery which comprises: at least two high power lithium-ion cells connected into a series string said cells each having an anode electrode layer, a metal current collector in contact with said anode electrode layer, with a collector terminal extending therefrom, at least one microporous separator in contact with said anode electrode layer, at least one cathode electrode layer in contact with said at least one separator, a metal current collector in contact with said cathode electrode layer, and a collector terminal extending from said cathode current collector, and at least two high energy density lithium-ion cells connected into a separate series string, said cells having an anode electrode layer, a metal current collector in contact with said anode electrode layer, with a collector terminal extending therefrom, at least one microporous separator in contact with said anode electrode layer, at least one cathode electrode layer in contact with said at least one separator, a metal current collector in contact with said cathode layer having a collector terminal extending therefrom, said electrodes of said lithium-ion high energy density cells are substantially thicker than the electrodes of said high power density lithium-ion cells, wherein said high power cells string is discharged in series, and is continuously recharged in series by said high energy density cell string.