| abstract |
A plurality of first electrodes including a first current collector in a sheet form and a first active material supported on the first current collector, a second current collector in the form of a sheet, and a second active material supported on the second current collector And a separator interposed between the first electrode and the second electrode, wherein the first electrode and the second electrode are arranged between the first electrode and the second electrode, Wherein the separator is stacked alternately with the separator interposed therebetween, and the first current collector comprises a first porous metal body. |