A battery cell and a process for forming the same. The battery cell includes a top cover structure including a pole including a main body, first bending portions and second bending portions; a bare aluminum sheet; and a connecting sheet. The first and seco...

A rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case that is connected to the first electrode and accommodates the electrode ass...

A secondary battery includes an electrode assembly, a case accommodating the electrode assembly, a sub-plate connected to the electrode assembly, a current collector comprising a flat portion coupled to the sub-plate and a boss portion protruding from the ...

A secondary battery includes: a case; an electrode assembly housed in the case and including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, the first electrode having a coating portion coated wi...

A battery includes a battery case (124), an electrode assembly (110) in the battery case (124), the electrode assembly (110) including a first electrode (111), a first terminal (130) exposed to an exterior of the battery case (124), the first terminal (130...