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:
Oct. 08, 2024
Filed:
Jul. 29, 2022
Guangdong Brunp Recycling Technology Co., Ltd., Guangdong, CN;
Hunan Brunp Recycling Technology Co., Ltd., Hunan, CN;
Hunan Brunp Ev Recycling Co., Ltd., Hunan, CN;
Haijun Yu, Guangdong, CN;
Yinghao Xie, Guangdong, CN;
Aixia Li, Guangdong, CN;
Xuemei Zhang, Guangdong, CN;
Changdong Li, Guangdong, CN;
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., Guangdong, CN;
HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., Hunan, CN;
HUNAN BRUNP EV RECYCLING CO., LTD., Hunan, CN;
Abstract
Disclosed is a preparation method for a Prussian blue sodium-ion battery positive electrode material, comprising: adding a first nonionic surfactant and an antioxidant into a sodium ferrocyanide solution to obtain a first solution; adding a second nonionic surfactant into a transition metal salt solution to obtain a second solution; in a protective atmosphere, adding the second solution into the first solution for a precipitation reaction; aging after the reaction has finished; collecting a precipitate, washing same, and carrying out vacuum drying on the washed precipitate; then soaking same in an alcohol solution containing sodium alkoxide; and then filtering same and steam drying to obtain a Prussian blue sodium ion battery positive electrode material. The method may relieve vacuum drying pressure and shorten drying time.