Boston — Pure Lithium Corporation and E3 Lithium have announced successful initial results from Phase 1 of their Joint Development Agreement, showcasing the potential for producing high-purity lithium metal anodes using E3’s lithium chloride concentrate and Pure Lithium’s proprietary technology.
The collaboration involved manufacturing battery cells using several variations of E3 Lithium’s lithium chloride concentrate, derived from its proprietary direct lithium extraction (DLE) process. At Pure Lithium’s facility in Boston, the lithium was electrodeposited onto a copper substrate to form pure lithium metal anodes. These were then assembled into full battery cells, which underwent rigorous electrochemical testing.
The results demonstrated a high purity level exceeding 99.9% for the lithium metal, as confirmed through ICP-OES analysis. Batteries using these anodes performed well, with all cells maintaining over 500 charge-discharge cycles while retaining 80% of their capacity. Performance was consistent across all samples, regardless of whether the lithium came from E3’s Leduc Brines or other standard sources, underscoring the flexibility and reliability of the process.
Equally significant were the charge and discharge rate tests, conducted at a 1C:1D ratio—meaning the batteries charged and discharged within one hour—highlighting the practicality of the technology for commercial applications. The study also identified an easily producible version of E3’s lithium concentrate as the most cost-effective feedstock for Pure Lithium’s battery production.
Emilie Bodoin, Founder, Chairman, and CEO of Pure Lithium, emphasized the breakthrough nature of the partnership. “We not only produced pure lithium metal anodes from unconventional sources of lithium using a newly invented technology, but also validated their performance by cycling them in over 100 batteries,” she said. “To get such great results consistently with a cost-effective process is truly exciting.”
Chris Doornbos, President and CEO of E3 Lithium, echoed that enthusiasm. “These results confirm that E3’s lithium concentrate can produce battery-ready lithium metal anodes using Pure Lithium’s technology,” he said. “We’re encouraged by the outcome and excited about the opportunity to build a localized lithium battery supply chain through this collaboration.”
The two companies plan to continue developing an integrated production process aimed at delivering high-purity lithium metal anodes at lower costs—an important step toward reshaping the lithium supply chain and advancing battery technology for the next generation of energy storage.
