Neptune Energy and KBR Produce High-Purity Lithium Carbonate from German Gas Field Brine

Neptune Energy, working with KBR, has produced battery-grade lithium carbonate from gas field brine at the Altmark site in Germany. The process uses KBR’s PureLi technology to refine lithium chloride, which was initially extracted using Geolith’s direct lithium extraction method. The resulting lithium carbonate has reached a purity of 99.5%, meeting industry standards for use in lithium-ion batteries for electric vehicles and consumer electronics.

The first technical-grade lithium carbonate was produced in November 2024, and subsequent processing steps included lithium chloride concentration, impurity removal, and lithium carbonate crystallization. These operations were carried out at Neptune Energy’s laboratory in Lingen, Germany.

The project is part of ongoing efforts to develop regional lithium supply chains in Germany and support demand for battery materials. Neptune Energy and KBR plan to continue refining extraction and conversion methods to strengthen the local supply of high-purity lithium.