▎ 摘　　要

NOVELTY - Extracting lithium from an aqueous lithium source (5) comprises: pre-treating (S1) an aqueous lithium source containing dissolved lithium ions, dissolved carbonate ions, dissolved calcium ions and/or dissolved magnesium ions by mixing the aqueous lithium source with a scale inhibitor, where the scale inhibitor is configured to inhibit the formation of solid carbonate com pounds in the aqueous lithium source; and electrochemically extracting (S2) the dissolved lithium ions in an electrochemical cell which comprises in a housing (1), a working electrode (3), a counter electrode (4) and the pre-treated aqueous lithium source as an electrolyte, where the working electrode of the electrochemical cell comprises a lithium storage material, a binder and an electrically conductive additive, and dissolved lithium ions are intercalated from the pre-treated aqueous lithium source into the lithium storage material of the working electrode. USE - The method is useful for extracting lithium from an aqueous lithium source. ADVANTAGE - The method is efficient and long term stable lithium extraction from aqueous lithium sources containing dissolved lithium, carbonate, calcium and/or magnesium. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for lithium-recovery unit comprising the electrochemical cell and a mixing unit, where the mixing unit is configured to mix the aqueous lithium source, the mixing unit is further configured to supply the aqueous lithium source mixed with the scale inhibitor as the electrolyte to the electrochemical cell, and the electrochemical cell is configured to electrochemically intercalate the dissolved lithium ions from the electrolyte into the lithium storage material of the working electrode. DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of extracting lithium from the aqueous lithium source in a lithium-recovery unit. Housing (1) Electron conductor (2) Working electrode (3) Counter electrode (4) Aqueous lithium source (5)