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US 8,802,262 B2Granted
Secondary battery
AssigneeSamsung SDI Co., Ltd.
InventorChang-Bum Ahn
Life of this patent
Estimating the term…
Abstract
A secondary battery including: a wound electrode assembly, including, a first electrode tab and a second electrode tab; a can to house the electrode assembly and an electrolyte, having a threaded neck and an opening; and a threaded cap to seal the can by mating with the neck. The neck may have an external threaded surface, and the cap may have an internal threaded surface that mates with the threaded surface of the neck. A sealing material may applied between the neck and the cap, to adhere the same.
Claims20
A secondary battery comprising:
- a wound electrode assembly comprising a first electrode, a second electrode, and a separator interposed therebetween,
- first and second electrode tabs extending respectively from the first and second electrodes;
- a can to house the electrode assembly and an electrolyte, having a threaded neck;
- a threaded cap screwed to the neck;
- and
- a sealing material disposed between a threaded outer surface of the neck and a threaded inner surface of the cap, the threaded cap being configured with the neck to be released from the can when an internal pressure of the electrode assembly housed in the can reaches a predetermined level to open the can.
3 more elements
A secondary battery comprising:
- a wound electrode assembly;
- a can to house the electrode assembly, having a threaded neck;
- a threaded cap screwed onto the neck;
- a sealing material disposed between a threaded outer surface of the neck and a threaded inner surface of the cap, the threaded cap being configured with the neck to be released from the can when an internal pressure of the electrode assembly housed in the can reaches a predetermined level to open the can;
- a first electrode tab to electrically connect the electrode assembly to the cap;
- and
- a first elastic body disposed around the first electrode tab, to space apart the electrode assembly and the cap.
4 more elements
A secondary battery comprising:
- a wound electrode assembly comprising a first electrode, a second electrode, and a separator interposed therebetween,
- first and second electrode tabs extending respectively from the first and second electrodes;
- a can to house the electrode assembly and an electrolyte, having a threaded neck;
- a threaded cap screwed to the neck;
- and
- a sealing material disposed between a threaded outer surface of the neck and a threaded inner surface of the cap, the sealing material being adapted to melt when the secondary battery reaches a predetermined level to release the threaded cap from the can.
3 more elements
Dependencies are inferred from the claim text.