Secondary battery
AssigneeSamsung SDI Co., Ltd.
InventorDae Kyu KIM
Life of this patent
Estimating the term…
Abstract
A secondary battery includes a can having a substantially cylindrical geometry, the can including an open end and a closed end; an electrode assembly accommodated within the can; and a cap assembly including a vent plate and a gasket, the vent plate disposed on the open end facing the electrode assembly, the gasket including an insulating material and disposed between the vent plate and the can, wherein a partial area of the open end has a thickness greater than a thickness of a remaining area. The secondary battery having a certain target crimping force may have a thickness of a crimping portion, except for a beading portion, being adjusted. If the thickness of the crimping portion is reduced, crimping may be released at a low pressure, resulting in quick opening and gas release.
Claims20
A secondary battery comprising:
- a can having a substantially cylindrical geometry, the can comprising an open end and a closed end;
- an electrode assembly accommodated within the can;
- and
- a cap assembly comprising a vent plate and a gasket, the vent plate disposed on the open end facing the electrode assembly, the gasket comprising an insulating material and disposed between the vent plate and the can,
- wherein a partial area of the open end has a thickness greater than a thickness of a remaining area.
Dependencies are inferred from the claim text.