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:
Sep. 22, 2026
Filed:
Mar. 09, 2021
Dowa Eco-system Co., Ltd., Tokyo, JP;
Chihiro Nishikawa, Tokyo, JP;
Yoshihiro Honma, Tokyo, JP;
Ryoei Watanabe, Tokyo, JP;
Masataka Yamashita, Tokyo, JP;
Yoshiki Ito, Tokyo, JP;
Yoshitaka Yoshiwara, Tokyo, JP;
DOWA ECO-SYSTEM CO., LTD., Tokyo, JP;
Abstract
Provided is a method for recovering lithium, for recovering lithium from a lithium ion secondary battery, the method including: a thermal treatment step of thermally treating a lithium ion secondary battery having a residual voltage higher than or equal to 80% of a rated voltage, to obtain a thermally treated product; a pulverizing step of pulverizing the thermally treated product, to obtain a pulverized product; and a lithium recovering step of recovering lithium from the pulverized product.