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:
Mar. 22, 2022
Filed:
May. 28, 2018
Sumitomo Chemical Company, Limited, Tokyo, JP;
Tanaka Chemical Corporation, Fukui, JP;
Jun-ichi Kageura, Niihama, JP;
Yusuke Maeda, Fukui, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
TANAKA CHEMICAL CORPORATION, Fukui, JP;
Abstract
A positive electrode active material for a lithium secondary battery includes secondary particles which are aggregates of primary particles that are capable of being doped and dedoped with lithium ions, in which the secondary particles have a total specific surface area of pores having a pore radius of 10 nm or more and 50 nm or less of 0.27 m/g or more and 0.90 m/g or less in a pore distribution measured by a mercury porosimetry method.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile