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:
Jun. 17, 2025
Filed:
Apr. 18, 2024
Shenzhen Huineng Energy Storage Materials Engineering Research Center Co., Ltd, Shenzhen, CN;
National Engineering Research Center of Advanced Energy Storage Materials (Shenzhen) Co., Ltd, Shenzhen, CN;
Faping Zhong, Shenzhen, CN;
Chihuan He, Shenzhen, CN;
Subin Jiang, Shenzhen, CN;
Hongbing Liu, Shenzhen, CN;
Jiqun Zhu, Shenzhen, CN;
Shuifa Tan, Shenzhen, CN;
Abstract
A method of using a chlorination method to recycle metal elements in lithium batteries includes, organic components in the lithium battery are removed, so as to obtain a mixture of powders containing the positive-electrode material; the powders are heated and chlorinated by chlorine, at a heating temperature of 500-1200° C.; gas products of the chlorination are output through a gas-solid filtration device, and then two stages of desublimation are used, wherein the temperature during the first-stage desublimation is set to be below 306° C. and above 178° C., so that FeClis desublimated into solid deposition, which is used for recycling Fe element; the temperature of the second-stage desublimation is set to be below 178° C., so that AlClis desublimated into solid deposition, which is used for recycling Al element; solid products of the chlorination are taken out for recycling the Li element.