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. 20, 2010
Filed:
Nov. 07, 2002
Chuanfu Wang, Shenzhen, CN;
Yueqing Yan, Shenzhen, CN;
Haishan Yang, Shenzhen, CN;
BYD Company Limited, Shenzhen, Guangdong, CN;
Abstract
The present invention relates to a lithium secondary battery with a built-in protective circuit, which includes battery case (), a battery core () and electrolyte. According to the present invention, a built-in protective circuit module () is provided to act as the connection between terminals of positive and negative electrodes (and) and output ends of positive and negative electrodes (and) inside the battery. The battery of the present invention has the advantages of safe and reliable protection against short-circuit, over-charge, over-discharge and over-current in the application, and therefore it is reliable power supply for the portable electronic appliances such as mobile phones and the like.