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. 19, 2016
Filed:
Feb. 16, 2011
Yukiko Fujino, Kyoto, JP;
Yoshinobu Yasunaga, Kyoto, JP;
Toru Tabuchi, Kyoto, JP;
Tokuo Inamasu, Kyoto, JP;
Toshiyuki Nukuda, Kyoto, JP;
Yukiko Fujino, Kyoto, JP;
Yoshinobu Yasunaga, Kyoto, JP;
Toru Tabuchi, Kyoto, JP;
Tokuo Inamasu, Kyoto, JP;
Toshiyuki Nukuda, Kyoto, JP;
GS YUASA INTERNATIONAL LTD., Kyoto, JP;
Abstract
An object is to provide a positive active material for nonaqueous electrolyte secondary battery, which is capable of providing a battery with excellent cycle performance. Provided are a positive active material for nonaqueous electrolyte secondary battery, which includes an Fe-containing lithium vanadium phosphate compound having a NASICON-type structure, wherein in the Fe-containing lithium vanadium phosphate compound, the percentage of iron atoms relative to the sum of vanadium and iron atoms is 2% or more and 20% or less; and the like.