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:
Jan. 20, 2015
Filed:
Feb. 12, 2009
Mi-young Son, Daejeon, KR;
Jeong-ju Cho, Daejeon, KR;
Ho-chun Lee, Daejeon, KR;
Jong-ho Jeon, Daejeon, KR;
Mi-Young Son, Daejeon, KR;
Jeong-Ju Cho, Daejeon, KR;
Ho-Chun Lee, Daejeon, KR;
Jong-Ho Jeon, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
A cylindrical lithium secondary battery includes an anode and a cathode, capable of occluding or emitting lithium ions; a non-aqueous electrolyte; and a CID (Current Interrupt Device) for intercepting electric current and lowering inner pressure when the inner pressure of the secondary battery is increased. The cylindrical lithium secondary battery may ensure the safety of the battery with respect to overcharging and also at the same time prevent the problem wherein the CID is activated too early, such that the battery stops its operation when the battery is used in a high-temperature environment.