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:
Nov. 18, 2008
Filed:
May. 27, 2005
Hideki Kitao, Kobe, JP;
Toyoki Fujihara, Tokushima, JP;
Kazuhisa Takeda, Tokushima, JP;
Naoya Nakanishi, Tokushima, JP;
Toshiyuki Nohma, Kobe, JP;
Hideki Kitao, Kobe, JP;
Toyoki Fujihara, Tokushima, JP;
Kazuhisa Takeda, Tokushima, JP;
Naoya Nakanishi, Tokushima, JP;
Toshiyuki Nohma, Kobe, JP;
SANYO Electric Co., Ltd., Osaka, JP;
Abstract
In a non-aqueous electrolyte secondary battery using a layered lithium-transition metal composite oxide as a positive electrode active material, elevated-temperature durability, that is, elevated-temperature storage performance is enhanced without degrading battery capacity. The non-aqueous electrolyte secondary battery includes: a positive electrode including, as a positive electrode active material, layered lithium-transition metal composite oxide containing lithium, nickel, and manganese; a negative electrode active material capable of intercalating and deintercalating lithium; and a non-aqueous electrolyte having lithium ion conductivity, and the lithium-transition metal composite oxide contains a group IVA element and a group IIA element of the periodic table.