The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 01, 2015
Filed:
Jun. 07, 2012
Jae Myoung Lee, Daejeon, KR;
Jae Myoung Lee, Daejeon, KR;
SK INNOVATION CO., LTD., , KR;
Abstract
Provided is a secondary battery including a battery cell having a cathode tab and an anode tab formed at one side thereof; a pouch formed so as to be enclose and seal the battery cell so that the cathode tab and the anode tab of the battery cell are protruded to the outside; and a shape memory alloy provided in the pouch and having a bent part bent in a specific shape and penetrating through and opening the pouch while being unbent at the time of an increase in a temperature of the battery cell, to discharge gas generated in the pouch when the gas is generated in the pouch due to an increase in a temperature caused by overcharging, overdischarging, and the like, to expand the pouch, thereby making it possible to prevent ignition and explosion.