E3 LITHIUM LTD., a leader in Canadian lithium has announced the initial results from the battery cells manufactured under the Joint Development Agreement with Pure Lithium Corporation (Pure Lithium”), using E3 Lithium’s brines and DLE technology and Pure Lithium’s innovative extraction and battery technology.
As previously announced on March 13, 2025, several variations of lithium chloride concentrate that reflect specific locations along the E3 Lithium process flow sheet within the commercial facility design were used to make lithium metal anodes at Pure Lithium’s Boston facility. The lithium from the E3 concentrated lithium chloride was electrodeposited as pure lithium metal onto a copper substrate, creating a complete, battery-ready anode. These anodes were then assembled by Pure Lithium into batteries, and their electrochemical performance was evaluated in full cells.
Notable results include:
- Lithium Metal Purity: The various E3 brine streams all achieved a very high purity level, > 99.9% pure lithium metal as tested by ICP-OES analysis.
- Cell Performance (Life Cycle): This tests for the number of charge and discharge cycles the battery achieves while retaining 80% of its capacity. All cells have achieved over 500 cycles to date.
- Charge and Discharge Rates: This tests for the duration of a charge and discharge. These tests were conducted at a 1C:1D ratio, with a one-hour charge time and one-hour discharge time.
The results of this study concluded that an easily producible version of E3’s lithium concentrate provided the most cost-effective feedstock for use in Pure Lithium’s batteries. It also demonstrated the robustness of Pure Lithium’s process, showing no performance differences between batteries made using lithium chloride from E3’s Leduc Brines and those made from Pure Lithium’s standard sources. The two companies continue to collaborate on the development and planning of an integrated process that can deliver the highest purity lithium metal anodes at the lowest possible cost.
“These results confirm that E3’s lithium concentrate can produce battery-ready lithium metal anodes using Pure Lithium’s technology. The Pure Lithium team has worked very hard in making these batteries and confirming the performance of our lithium. We are very encouraged by the results, and I am excited by the prospect of developing a local lithium battery supply chain in collaboration with Pure Lithium.”
– Chris Doornbos, President and CEO of E3 Lithium.
“I am delighted to reinvent the lithium supply chain with E3 Lithium. 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. Rigorous electrochemical testing of battery materials is imperative, and to get such great results consistently using a technology that was specifically developed to be cost-effective is truly exciting.”
– Emilie Bodoin, founder, chairman & CEO of Pure Lithium.
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