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:
Sep. 15, 2009
Filed:
Feb. 24, 2006
Sung Kyun Chang, Daejeon, KR;
Jae Hyun Lee, Daejeon, KR;
Joon Hwan Lee, Daejeon, KR;
Soo Hyun Ha, Busan, KR;
Sang Hoon Choy, Daejeon, KR;
Jeong Ju Cho, Daejeon, KR;
Sung Kyun Chang, Daejeon, KR;
Jae Hyun Lee, Daejeon, KR;
Joon Hwan Lee, Daejeon, KR;
Soo Hyun Ha, Busan, KR;
Sang Hoon Choy, Daejeon, KR;
Jeong Ju Cho, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
The present invention relates to an apparatus for protecting a secondary battery by preventing overcharge of the secondary battery. The apparatus for protecting a secondary battery includes: a secondary battery; a power supply, connected with both electrode terminals of the secondary battery, for providing a charging voltage and a charging current to the secondary battery to charge the secondary battery; and a secondary battery protection unit for shorting the power supply thereby to stop charging the secondary battery if a charging voltage of the secondary battery is above a predetermined voltage.