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. 28, 2020
Filed:
Jun. 05, 2018
Murata Manufacturing Co., Ltd., Kyoto, JP;
Tadashi Matsushita, Kyoto, JP;
Yuya Akiyama, Kyoto, JP;
Atsushi Ouki, Kyoto, JP;
Takashi Sato, Kyoto, JP;
Masaki Kuratsuka, Kyoto, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A positive electrode includes first active material particles, second active material particles, and third active material particles, and the second active material particles include an aggregation of second primary particles. The average particle size Dof the first active material particles, the average particle size Dof the second active material particles, and the average particle size Dof the third active material particles satisfy a relationship of D>D>DA first particle disintegration rate αof the first active material particle and a third particle disintegration rate αof the third active material particle are not more than 20%, and a second particle disintegration rate β of the second active material particle is not less than 70%.