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. 16, 2019
Filed:
Nov. 26, 2012
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Tetsuya Mitsumoto, Takehara, JP;
Yasuhiro Ochi, Takehara, JP;
Tomohiro Sakata, Takehara, JP;
Hitohiko Ide, Takehara, JP;
Yoshimi Hata, Takehara, JP;
Shinya Kagei, Takehara, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
Provided is a lithium metal composite oxide having a layered structure, which is particularly excellent as a positive electrode active material for batteries that are mounted on electric vehicles or hybrid vehicles. Proposed is a lithium metal composite oxide having a layered structure, which is represented by general formula Li(MnCoNi)O(0.00≤X≤0.07, 0.10≤α≤0.40, 0.10≤β≤0.40, and 0.30≤γ≤0.75) and has a specific surface area of more than 2.0 m/g but 5.0 m/g or less and has an average particle size of the primary particles/crystallite size ratio of 5.7 to 18.5.