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:
Dec. 04, 2012
Filed:
Oct. 12, 2007
Hajime Nishino, Nara, JP;
Yasushi Hirakawa, Osaka, JP;
Koshi Takamura, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
It is aimed to provide a battery pack capable of securing safety by preventing A battery contained in the battery pack from entering a burning state even if the battery releases high-temperature gas in an abnormal state. An exhaust ductC for permitting the flow of gas released from the battery is provided and the gas is exhausted to the outside after reducing the temperature thereof in the exhaust ductC. A flow passage area of the exhaust ductC is in the range of not less than 0.5 mmand not more than 15 mmper 1 Ah of the battery capacity. The exhaust ductC is provided with a gas cooling portionL and a spark trapping portionM.