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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.:

US 12304826 B1

PDFFull Text
Date of Patent:
May. 20, 2025

Filed:

Mar. 16, 2022

Method for producing lithium iron phosphate precursor by using retired lithium iron phosphate battery as raw material

Applicant:

Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong, CN;

Inventors:

Yongshou Lin, Ningde, CN;

Guobao Wang, Ningde, CN;

Ke Wang, Ningde, CN;

Jiang Liu, Ningde, CN;

Bin Yao, Ningde, CN;

Assignee:

CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong, CN;

Attorney:

K&L Gates LLP

Primary Examiner:

Yong L Chu

Int. Cl.
CPC ...
C01D 15/08 (2006.01); C01B 25/37 (2006.01); C25C 1/12 (2006.01); H01M 4/58 (2010.01); H01M 10/0525 (2010.01); H01M 10/54 (2006.01);
U.S. Cl.
CPC ...
C01D 15/08 (2013.01); C01B 25/375 (2013.01); C25C 1/12 (2013.01); H01M 4/5825 (2013.01); H01M 10/0525 (2013.01); H01M 10/54 (2013.01); C01P 2006/80 (2013.01);
Abstract

A method for producing a lithium iron phosphate precursor by using a retired lithium iron phosphate battery as a raw material is provided, which includes steps of: soaking a battery cell in acid, performing electrolysis to reclaim copper, oxidizing ferrous iron, precipitating iron phosphate, and precipitating lithium carbonate. After precipitation is completed, performing one-step reclaim to obtain the lithium iron phosphate precursor.

Find Patent Forward Citations

Lin, Yongshou. (2025). Method for producing lithium iron phosphate precursor by using retired lithium iron phosphate battery as raw material (U.S. Patent No. 12304826). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12304826

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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