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. 16, 2019
Filed:
Aug. 05, 2016
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Tetsuri Nakayama, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-ken, JP;
Abstract
Provided is a positive electrode material for a lithium secondary battery that excels in durability and has a high electron conductivity (typically, a low battery resistance). A positive electrode material for a lithium secondary battery, which is provided by the present invention, includes positive electrode active material particles that can reversibly store and release a charge carrier, and lithium phosphate. Each of the positive electrode active material particles has a hollow structure having a shell configured of primary particles and a hollow portion formed inside the shell. Lithium phosphate is disposed inside the hollow portion, and no lithium phosphate is disposed on the outer circumferential surface of each of the positive electrode active material particles.