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:
Jul. 18, 2017
Filed:
Mar. 12, 2015
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Hikaru Yoshikawa, Kashiwazaki, JP;
Hiromichi Kuriyama, Kashiwazaki, JP;
Yasuaki Murashi, Kashiwazaki, JP;
Hidesato Saruwatari, Kashiwazaki, JP;
Dai Yamamoto, Kashiwazaki, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
According to one embodiment, there is provided a positive electrode including a positive electrode active material-including layer including a positive electrode active material, which includes a lithium-manganese oxide LiMnMO, and a conductive agent. In the positive electrode active material-including layer, an average particle diameter dis within 2 μm to 5 μm, a particle diameter dand a particle diameter d, where a cumulative frequency from a smaller side is, respectively, 10% and 90%, is within 0.5 μm to 3 μm and within 4 μm to 10 μm, respectively, in a particle size distribution. X, represented by X=(d−d) /dis within 0.4 to 0.8. Y, represented by Y=(d−d)/dis within 0.2 to 0.6.