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:
Apr. 08, 2008
Filed:
Dec. 17, 2003
Hiroshi Yoshizawa, Hirakata, JP;
Koji Saito, Moriguchi, JP;
Katsuyuki Shirasawa, Osaka, JP;
Shinji Ohta, Osaka, JP;
Hiroshi Yoshizawa, Hirakata, JP;
Koji Saito, Moriguchi, JP;
Katsuyuki Shirasawa, Osaka, JP;
Shinji Ohta, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A battery pack comprising a lithium ion secondary battery and a current interrupting device for protecting the secondary battery, the secondary battery comprising positive and negative electrodes, a separator interposed between the positive and negative electrodes and a non-aqueous electrolyte, the current interrupting device comprising a recoverable device and a non-recoverable device, the recoverable and non-recoverable devices being connected in series with each other, and the non-recoverable device having an operating temperature of not less than 90° C. and less than 150° C.