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:
May. 12, 2026
Filed:
Aug. 29, 2022
The Regents of the University of Michigan, Ann Arbor, MI (US);
Wei Lu, Ann Arbor, MI (US);
Tianhan Gao, Ann Arbor, MI (US);
THE REGENTS OF THE UNIVERSITY OF MICHIGAN, Ann Arbor, MI (US);
Abstract
Disclosed are a system and methods for producing lithium hydroxide directly from natural brine by an electrochemical approach. In one example version of the system, an electrochemical cell operates in two states. In one state, lithium cations (Li) intercalate into a first electrode from the brine, and sodium cations (Na) deintercalate from a second electrode into the brine. In another state, lithium cations deintercalate from the first electrode into a dilute lithium hydroxide (LiOH) solution, and sodium cations intercalate to the second electrode from a concentrated sodium hydroxide (NaOH) solution. Hydroxide anions (OH) transport through an anion exchange membrane to combine with lithium cations (Li) to form LiOH, continuously increasing its concentration.