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:
Jul. 21, 2009
Filed:
Jan. 18, 2008
Shinya Miyazaki, Moriguchi, JP;
Machiko Minoura, Niiza, JP;
Shinya Miyazaki, Moriguchi, JP;
Machiko Minoura, Niiza, JP;
Sanyo Electric Co., Ltd., Moriguchi-shi, JP;
Abstract
In a nonaqueous electrolyte secondary batterycontaining a positive electrodehaving a positive electrode active material capable of intercalating and deintercalating lithium ion; a negative electrodehaving a negative electrode active material capable of intercalating and deintercalating lithium ion; and a nonaqueous electrolyte, the positive electrode active material contains both lithium cobalt oxide A in which 3 to 5 mol % of magnesium are homogeneously added and lithium cobalt oxide B in which 0.1 to 1 mol % of magnesium is homogeneously added which are mixed in a mixing ratio of lithium cobalt oxide A: lithium cobalt oxide B=2:8 to 8:2. By constituting a nonaqueous electrolyte secondary battery having the above constitution, a nonaqueous electrolyte secondary battery in which the thermal stability and the higher temperature cycle property are remarkably improved without lowering the battery capacity and the load performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile