Patent ID: 8895089

Claim:
A sealed battery comprising: a columnar battery case encapsulating a chargeable/dischargeable electrode assembly and electrolyte in an interior and having a vent that cleaves up when a pressure in the interior exceeds a threshold; a cover that covers at least a portion of an outer surface of the vent of the battery case to prevent the vent from being covered with resin which is formed on the battery case; a temperature protection device electrically connected with a terminal of the battery case and capable of blocking electric current when a temperature exceeds a threshold; and two connection lines connected with the temperature protection device, wherein the cover includes an overhang located to cover at least a portion of the temperature protection device when the temperature protection device is mounted on the cover, the overhang includes a visor covering a side of the temperature protection device opposite a side thereof facing the battery case and a support that supports the visor and covers the temperature protection device from a side, and is L-shaped in a cross section to cover the temperature protection device from at least two directions, the temperature protection device is at least partially covered with the overhang and, together with the cover, covered with the resin, and the visor has a low-rigidity portion with a rigidity lower than in another portion to allow the visor to be deformed toward the temperature protection device.