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. 03, 2012
Filed:
Sep. 07, 2007
Hanako Miyasaka, Shimada, JP;
Takaaki Iguchi, Kyoto, JP;
Junichi Kuratomi, Kyoto, JP;
Sumio Mori, Kyoto, JP;
Hanako Miyasaka, Shimada, JP;
Takaaki Iguchi, Kyoto, JP;
Junichi Kuratomi, Kyoto, JP;
Sumio Mori, Kyoto, JP;
GS Yuasa International Ltd., Kyoto, JP;
Abstract
Disclosed is a nonaqueous electrolyte secondary battery which is suppressed in increase of internal resistance, while having high capacity retention rate and small battery swelling even after a long use. Specifically disclosed is a method for manufacturing a nonaqueous electrolyte secondary battery, which is characterized by using a positive electrode containing a positive electrode active material having an α-NaFeO2 crystal structure and the following chemical composition: LixMnaNibCocOd (wherein 0<x<1.3, a+b+c=1, 1.7≦d≦2.3), while satisfying |a−b|<0.03 and 0.33≦c<1, a negative electrode, and a nonaqueous electrolyte containing an unsaturated sultone and a sulfate ester compound.