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Registered ABRUPT METAL-INSULATOR TRANSITION (MIT) DEVICE, MIT SENSOR USING THE ABRUPT MIT DEVICE, AND ALARM APPARATUS AND SECONDARY BATTERY ANTI-EXPLOSION CIRCUIT INCLUDING THE MIT SENSOR
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ABRUPT METAL-INSULATOR TRANSITION (MIT) DEVICE, MIT SENSOR USING THE ABRUPT MIT DEVICE, AND ALARM APPARATUS AND SECONDARY BATTERY ANTI-EXPLOSION CIRCUIT INCLUDING THE MIT SENSOR
- Inventors
- Hyun-Tak Kim, Kim Bong Jun, Lee Yong Wook, Sungyoul Choi, Lim Jungwook, Choi Sang Kuk, Chae Byung Gyu, Sun Jin Yun, Kang Kwang-Yong
- Application No.
- 12303000 (2007.05.30)
- Publication No.
- 20090315724 (2009.12.24)
- Registration No.
- 8305221 (2012.11.06)
- Country
- UNITED STATES
- 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.
- KSP Keywords
- Concentration sensor, Image Sensor, Infrared sensor, Pressure Sensor, Protection circuit, body powered, connected in series, electromagnetic wave, gas concentration, metal-insulator, metal-insulator transition, secondary battery, temperature sensor(LM35), transition temperature, transition voltage