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:
Nov. 01, 2011
Filed:
Apr. 15, 2005
Jeong Ju Cho, Daejeon, KR;
Sung Kyun Chang, Daejeon, KR;
Min Chul Jang, Daejeon, KR;
Jae Hyun Lee, Daejeon, KR;
Joon Hwan Lee, Daejeon, KR;
Soo Hyun Ha, Busan, KR;
Jeong Ju Cho, Daejeon, KR;
Sung Kyun Chang, Daejeon, KR;
Min Chul Jang, Daejeon, KR;
Jae Hyun Lee, Daejeon, KR;
Joon Hwan Lee, Daejeon, KR;
Soo Hyun Ha, Busan, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is a battery safety device having a first metal plate, a second metal plate, and a pressure-sensitive conducting film interposed between both metal plates and adapted to exhibit electrical conductivity when a predetermined pressure or higher is applied. The first and second metal plates are electrically connected to the positive and negative electrodes of the battery, respectively. The safety device connected to a battery prevents the battery from being damaged or at least from igniting or exploding, even when an external impact caused by pressure, a nail, or a nipper or an external pressure is applied to the battery, by conducting the current of the battery to the safety device and discharging the battery before the battery is damaged by the external impact or external pressure.