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- Title
Continuous Flow‐By Electrochemical Reactor Design for Direct Lithium Extraction from Brines.
- Authors
Roggerone, Clara; La Mantia, Fabio; Kowal, Julia; Laß‐Seyoum, Asnakech
- Abstract
The demand for lithium is expected to increase significantly in the next few years, mainly due to the energy transition in the mobility sector. To electrify the entire global transportation system, it is necessary to have access to a wide variety of lithium deposits to ensure resource sovereignty and sufficient supply to meet demand. For this reason, much effort has recently been invested in developing technologies for direct lithium extraction (DLE) from brines. In this work, a membrane‐based continuous flow‐by reactor for the electrochemical extraction of lithium from brine with a LiMn2O4/λ‐MnO2 system has been studied. A zoned reactor was proposed in which the current density and electrode mass loading gradually decrease along with the depletion of lithium in the brine, obtaining an average electrode capacity of 80 mAh/g throughout three different reactor sections. The limiting Reynolds number was determined for the dilute lithium segment of the reactor to avoid mass transport limitations, with brine concentration equal to Li 3 mM and Na 1.3 M. A homogeneous cycle time was achieved for the three reactor zones and their associated average energy consumption was determined, ranging from 3.9 Wh/mol Li to 9.5 Wh/mol Li.
- Subjects
LITHIUM; SALT; SALINE water conversion; REYNOLDS number; ENERGY consumption; SUPPLY &; demand
- Publication
ChemElectroChem, 2024, Vol 11, Issue 12, p1
- ISSN
2196-0216
- Publication type
Article
- DOI
10.1002/celc.202400160