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.

Date of Patent:
Jun. 18, 2024

Filed:

Aug. 25, 2022
Applicants:

Guangdong Brunp Recycling Technology Co., Ltd., Foshan, CN;

Hunan Brunp Recycling Technology Co., Ltd., Changsha, CN;

Hunan Brunp Ev Recycling Co., Ltd., Changsha, CN;

Inventors:

Haijun Yu, Foshan, CN;

Yinghao Xie, Foshan, CN;

Aixia Li, Foshan, CN;

Xuemei Zhang, Foshan, CN;

Changdong Li, Foshan, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C01B 25/45 (2006.01); H01M 4/1397 (2010.01); H01M 4/58 (2010.01);
U.S. Cl.
CPC ...
C01B 25/45 (2013.01); H01M 4/1397 (2013.01); H01M 4/5825 (2013.01); C01P 2004/03 (2013.01); C01P 2006/40 (2013.01);
Abstract

Disclosed is a preparation method of porous sodium iron phosphate used as a sodium ion battery cathode material, which includes: mixing ferrous nitrate, silver nitrate and a reducing agent to prepare a mixed solution, adding the mixed solution dropwise to a carbonate solution for reaction to obtain a precipitate, mixing the precipitate with sodium dihydrogen phosphate and sodium iodide and then grinding, sintering the ground material under the condition of air isolation, and soaking the sintered material in an organic solvent to obtain porous sodium iron phosphate used as a sodium ion battery cathode material.


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