US Patent Application 18303572. SEALED BATTERY simplified abstract
Contents
SEALED BATTERY
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Yozo Uchida of Toyota-shi (JP)
Tsuyoshi Ehara of Toyota-shi (JP)
Syoichi Tsuchiya of Toyota-shi (JP)
Masataka Asai of Toyota-shi (JP)
Tsuyoshi Asano of Toyota-shi (JP)
Masahiro Uchimura of Toyota-shi (JP)
Shigeru Matsumoto of Toyohashi-shi (JP)
Yasuaki Nagano of Kosai-shi (JP)
SEALED BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 18303572 titled 'SEALED BATTERY
Simplified Explanation
- The abstract describes a sealed battery design with a metal wall portion that has a gas vent hole. - The metal wall portion has an annular seal surface surrounding the opening edge of the gas vent hole. - The battery also includes a resin safety valve member that closes the gas vent hole. - The resin safety valve member has an annular joined portion that is hermetically joined to the annular seal surface. - The resin safety valve member also has an inside portion located further inside than the annular joined portion in a radial direction. - The inside portion of the resin safety valve member is designed to break when the internal pressure of the battery case reaches a specific valve opening pressure. - When the inside portion breaks, it opens the resin safety valve member, allowing gas to escape from the battery case.
Original Abstract Submitted
In a sealed battery, a battery case includes a metal wall portion formed with a gas vent hole. The metal wall portion includes an annular seal surface surrounding an opening edge of the gas vent hole. A resin safety valve member closing the gas vent hole includes an annular joined portion hermetically joined to the annular seal surface and an inside portion located more inside than the annular joined portion in a radial direction. The inside portion breaks when the internal pressure of the battery case reaches a valve opening pressure, thereby opening the resin safety valve member.
- TOYOTA JIDOSHA KABUSHIKI KAISHA
- Yozo Uchida of Toyota-shi (JP)
- Tsuyoshi Ehara of Toyota-shi (JP)
- Yuki Sato of Toyota-shi (JP)
- Syoichi Tsuchiya of Toyota-shi (JP)
- Masataka Asai of Toyota-shi (JP)
- Tsuyoshi Asano of Toyota-shi (JP)
- Masahiro Uchimura of Toyota-shi (JP)
- Shigeru Matsumoto of Toyohashi-shi (JP)
- Yasuaki Nagano of Kosai-shi (JP)
- H01M50/342
- H01M50/103