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. 30, 2025
Filed:
Oct. 09, 2021
Lis (Shanghai Material Technology Co., Ltd., Shanghai, CN;
Yu Hu, Shanghai, CN;
Jingze Zhang, Shanghai, CN;
Luri Bao, Shanghai, CN;
Weiping Tang, Shanghai, CN;
LIS (SHANGHAI) MATERIAL TECHNOLOGY CO., LTD., Shanghai, CN;
Abstract
The present invention disclosures a preparation method for a coated lithium ion sieve, the method comprises: S01: calcining manganese salt in an air atmosphere for 2 h˜10 h to form MnO; S02: mixing MnOwith lithium salt and grinding, reacting in a high-pressure reaction kettle at 100° C.˜200° C. for 36 h˜72 h to form a product of LiMnO; wherein, the molar ratio of MnOand Li/Mn in the lithium salt is 1:1˜10:1; S03: adding LiMnOto a metal coating reagent and ultrasonic mixing for 2 h˜10 h, drying for 6 h˜24 h, and then calcining at 400° C.˜600° C. for 2 h˜10 h to form an oxide-coated LiMnOlithium ion adsorbent; Wherein, the molar ratio of the metal coating reagent to LiMnOis 0.01:1˜0.08:1; S04: performing an acid treatment to the oxide-coated LiMnOlithium-ion adsorbent to form an acidified product, washing the acidified product and drying to form the coated lithium-ion sieve. The cell structure of the coated lithium-ion sieve of the present invention is more stabler and can be reused for many cycles, which solves a problem that traditional HMnOlithium-ion sieve is easy to dissolve.