Cost competitive processing with environmental benefits
EcoGraf has developed a proprietary, patented purification process that produces high purity graphite for lithium ion batteries without the use of hydrofluoric acid (HF). The EcoGraf HFfree® process, a registered trademark of EcoGraf, is a multi step chemical purification method designed to remove impurities while preserving the physical and electrochemical properties required for battery anode materials. As part of its broader strategy, EcoGraf is developing a sustainable supply of high purity graphite flakes, powders and battery anode materials. The process consistently delivers ≥99.95% carbon purity, meeting the specifications of leading battery manufacturers.
Sustainable and
Cost-effective
Unlike conventional purification methods, EcoGraf HFfree® technology:
- Eliminates the use of hydrofluoric HF acid and its derivatives
- Minimises waste and environmental impact
- Offers a cost-competitive alternative to existing purification methods
(~34% lower as per latest benchmarking study) - Aligns with increasingly stringent global ESG and regulatory requirements
EcoGraf HFfree® Battery Anode Material Development History
EcoGraf HFfree® Patents
To secure the intellectual property rights associated with the EcoGraf HFfree® process, a number of patent applications have been submitted. All intellectual property rights are owned 100% by EcoGraf and the current status of accepted and granted intellectual property actions is summarised below
| Method of Producing Purified Graphite – Patent 1 | Reference | Status | ||||||
|---|---|---|---|---|---|---|---|---|
| Australia | 2021261902 | Accepted | ||||||
| Tanzania, Mozambique and Namibia | AP/P/2022/013753 | Granted | ||||||
| USA | 11,702,342 (17/626425) | Granted | ||||||
| South Africa | 2022/04606 | Accepted | ||||||
| India | 587710 | Granted | ||||||
| Vietnam | 1-2022-08086 | Accepted | ||||||
| Europe, Malaysia, South Korea | Under Examination | |||||||
| Improved Method of Producing Purified Graphite – Patent 2 | ||||||||
| Australia | 2022387279 | Granted | ||||||
| Canada | 3237999 | Filed | ||||||
Supporting the Energy Transition and Circular Economy
As demand for electric vehicles and energy storage systems accelerates, the need for high quality, responsibly sourced graphite continues to grow. EcoGraf HFfree® technology provides a pathway to deliver this critical material with lower environmental impact and reduced reliance on traditional supply chains, while also enabling circular economy outcomes through the recycling of battery anode material. The process supports the recovery of high-quality graphite from end-of-life batteries, reducing emissions and contributing to more sustainable, closed-loop supply chains.
