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, 2011
Filed:
Jan. 28, 2008
Tomoya Takeuchi, Takehara, JP;
Shinya Kagei, Takehara, JP;
Naoki Kumada, Takehara, JP;
Keisuke Miyanohara, Takehara, JP;
Tomoya Takeuchi, Takehara, JP;
Shinya Kagei, Takehara, JP;
Naoki Kumada, Takehara, JP;
Keisuke Miyanohara, Takehara, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Abstract
In a lithium transition metal oxide having a layered structure, one is provided, which is particularly excellent as a positive electrode active material of a battery on board of an electric vehicle or a hybrid vehicle in particular. A lithium transition metal oxide having a layered structure is proposed, wherein the ratio of the crystallite diameter determined by Measurement Method 1 according to the Rietveld method with respect to the mean powder particle diameter (D50) determined by the laser diffraction/scattering-type particle size distribution measurement method is 0.05 to 0.20.