Back to results
US 12,580,271 B2Granted
Secondary battery
AssigneeLG Energy Solution, Ltd.
InventorsIk Jong Lee, Duk Hyun Ryu, Jung Hoon Kim
Life of this patent
Estimating the term…
Abstract
A secondary battery includes an electrode assembly in which electrodes and separators are alternately stacked to be wound, a can configured to accommodate the electrode assembly therein, having an opening in an upper end thereof, and provided with a beading part that is bent inward to form a recessed groove, a cap assembly seated on the beading part to cover the opening of the can, an extinguishing agent accommodated in the recessed groove to extinguish ignition when the secondary battery is ignited, and a sealing part configured to seal the recessed groove.
Claims9
A secondary battery comprising:
- an electrode assembly in which electrodes and separators are alternately stacked and configured to be wound;
- a can configured to accommodate the electrode assembly therein, having an opening in an upper end thereof, and provided with a beading part that is bent inward to form a recessed groove;
- a cap assembly seated on the beading part to cover the opening of the can;
- an extinguishing agent accommodated in the recessed groove to extinguish an ignition when the secondary battery is ignited;
- and
- a sealing part configured to seal the recessed groove,
- wherein a notch is formed in the beading part of the can.
4 more elements
Dependencies are inferred from the claim text.