A secondary battery includes a case with at least one opening, the at least one opening having a long side portion and a short side portion, a stepped portion at the short side portion and the long side portion of the opening along an inner surface of the ...

A secondary battery may include an electrode assembly comprising a first electrode, a separator, and a second electrode; a receiving can having an open first side to receive the electrode assembly and the receiving can being connected to the first electrod...

A secondary battery including an electrode assembly including a first electrode, a separator, and a second electrode, a case accommodating the electrode assembly and electrically connected to the second electrode, a cap assembly closing an opening of the c...

The present invention relates to a multi-battery pack including a plurality of stacked battery packs and a plurality of long bolts configured to couple the plurality of battery packs to each other and to fix the plurality of battery packs to a device, wher...