Abstract: A lithium ion battery having a plurality of cells connected in series, in parallel, or both internally within a sealed case. Each of the plurality of cells has a cathode in contact with a positive current collector and an anode in contact with a negative current collector. The battery also includes a single positive terminal in electrical contact with at least one positive current collector and a single negative terminal in electrical contact with at least one negative current collector. One or more cross-over connectors electrically connect adjacent positive and negative current collectors. Also provided is a lithium ion battery having externally connected cells, the battery also having a single negative terminal in electrical contact with at least one negative current collector and one or more cross-over connectors that electrically connect adjacent positive and negative current collectors of the cells.

Abstract: A lithium ion battery having a plurality of cells connected in series, in parallel, or both internally within a sealed case. Also provided is a lithium ion battery having externally connected cells.

Abstract: A high power lithium-ion battery is disclosed. The high power lithium-ion battery includes a first housing, a first anode interface, a first cathode interface, and a plurality of lithium-ion battery units disposed in the housing. The first anode interface and the first cathode interface are disposed on a surface of the first housing. Each lithium-ion battery unit includes a second housing, a second anode interface, a second cathode interface, and a plurality of rolls disposed inside the second housing. The second anode interface and the second cathode interface are disposed on a surface of the second housing or inside the second housing. Each roll is configured by winding a stack constituted of an anode sheet, an isolation films, and a cathode sheets sequentially stacked one on another.