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. 06, 2012
Filed:
May. 30, 2007
Hyun-tak Kim, Daejeon, KR;
Bong-jun Kim, Daejeon, KR;
Byung-gyu Chae, Daejeon, KR;
Sun-jin Yun, Daejeon, KR;
Sung-youl Choi, Ulsan, KR;
Yong-wook Lee, Daejeon, KR;
Jungwook Lim, Daejeon, KR;
Sang-kuk Choi, Daejeon, KR;
Kwang-yong Kang, Daejeon, KR;
Hyun-Tak Kim, Daejeon, KR;
Bong-Jun Kim, Daejeon, KR;
Byung-Gyu Chae, Daejeon, KR;
Sun-Jin Yun, Daejeon, KR;
Sung-Youl Choi, Ulsan, KR;
Yong-Wook Lee, Daejeon, KR;
JungWook Lim, Daejeon, KR;
Sang-Kuk Choi, Daejeon, KR;
Kwang-Yong Kang, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided are an abrupt MIT device with variable MIT temperature or voltage, an MIT sensor using the abrupt MIT device, and an alarm apparatus and a secondary battery anti-explosion circuit including the MIT sensor. The MIT device includes an abrupt MIT layer undergoing an abrupt MIT at a transition temperature or a transition voltage and at least two electrode layers contacting the abrupt MIT layer. The transition temperature or the transition voltage varies with at least one of factors including a voltage applied to the electrode layers, a temperature, an electromagnetic wave, a pressure, and a gas concentration that affect the abrupt MIT layer. The MIT sensor is a temperature sensor, an infrared sensor, an image sensor, a pressure sensor, a gas-concentration sensor, or a switch. The alarm apparatus includes the MIT sensor and an alarm-signaling unit connected in series with the MIT sensor. The secondary battery anti-explosion circuit includes a secondary battery, the MIT sensor attached to the secondary battery to sense the temperature of the secondary battery and thus to prevent the possible explosion of the secondary battery, and a protection circuit body powered by the secondary battery.