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. 22, 2016
Filed:
Mar. 10, 2010
Satoru Kuze, Tsukuba, JP;
Masami Makidera, Tsukuba, JP;
Taketsugu Yamamoto, Tsukuba, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
Disclosed is a mixed metal oxide comprising Na, M, and M, where Mrepresents at least one element selected from the group consisting of Mg, Ca, Sr, and Ba; and Mrepresents at least one element selected from the group consisting of Mn, Fe, Co, and Ni, wherein the molar ratio of Na:M:Mis a:b:1, where a is a value within the range of not less than 0.5 and less than 1; b is a value within the range of more than 0 and not more than 0.5; and 'a+b' is a value within the range of more than 0.5 and not more than 1. An electrode having an active material containing the mixed metal oxide is also disclosed. Further disclosed is an electrode containing the electrode active material as well as a sodium secondary battery comprising the electrode as a positive electrode.