Successful demonstration at its 100 kg/day continuous purification plant marks a major milestone in commercializing its patented technology for lithium-ion battery-grade graphite.
Green Graphite Technologies Inc. (“GGT”), a developer of advanced graphite purification and recycling technology, today announced that it has successfully produced high-purity graphite using its 100 kg/day continuous purification demonstration plant in Mississauga, Ontario. The milestone demonstrates the potential of GGT’s patented technology to transform both mined and recycled graphite into battery-grade material, consistently achieving purities exceeding 99.98% - a clear breakthrough for battery supply chain security.
Graphite is an essential battery material, with lithium-ion batteries containing > 10 times more graphite than lithium by weight. More than 90% of battery-grade graphite supply originates in China, creating a significant supply chain vulnerability for G7 nations.
GGT is addressing this critical gap with a patented purification technology designed to enable cost-effective, sustainable domestic production of battery-grade graphite from natural graphite concentrate, battery manufacturing anode scrap and recycled materials. By unlocking multiple sources of supply, GGT’s technology offers a pathway to strengthen supply chain resilience while advancing a more circular battery economy.
GGT’s innovative continuous carbochlorination technology offers a compelling alternative, with projected operating costs significantly lower than conventional Chinese HF-based purification technology. The process is also projected to reduce water use and waste generation by approximately 90%, while delivering an estimated 82% lower carbon footprint compared with China-sourced graphite.
By combining high purity with the potential for significantly lower costs and environmental impacts, GGT aims to make domestic battery-grade graphite purification commercially competitive.
From demonstration to customer qualification
Over the coming months, GGT’s demonstration plant will process natural flake graphite concentrate, graphite recovered from anode manufacturing scrap, and graphite recycled from end-of-life lithium-ion batteries. The resulting battery-grade materials will be provided to Giga scale battery cell manufacturers to initiate product qualification testing.
This next phase will advance GGT toward commercial deployment, with the company targeting its first commercial rollout in 2028.
A milestone years in the making
GGT CEO and Co-founder Gillian Holcroft said:
When my co-founder and CTO, Kevin Watson, and I launched GGT in 2021, our vision was to solve a critical gap in the battery supply chain — to provide the purification technology the industry needs but has been missing.
Today, we’ve taken a major step toward that vision. We’ve demonstrated that our patented continuous process can produce graphite at purities exceeding 99.98%, from both mined and recycled sources. To our knowledge, this is an industry first for continuous carbochlorination applied to these feedstocks.
I couldn’t be more proud of our team. This milestone moves us closer to delivering a commercially competitive, more sustainable source of battery-grade graphite for North America, Europe and other markets seeking secure, diversified supply. We’re now focused on customer qualification and our path to commercial deployment in 2028.
See the technology in action
NGen Canada, one of GGT’s public-sector funding partners, has produced a short video featuring the demonstration plant and interviews with GGT’s co-founders.
Watch here: https://youtu.be/yWXmiuSk-gM?si=8m8jrFIiEHWmFJbj
About Green Graphite Technologies Inc.
Green Graphite Technologies Inc. (GGT), headquartered in Montreal, Quebec with a demonstration plant in Mississauga and pilot operations in Kingston, Ontario, is commercializing its patented purification technology to produce battery-grade graphite from mined and recycled sources to address the urgent need to onshore supply for North American lithium-ion battery manufacturers (i.e. gigafactories). GGT’s 100 kg/day demonstration plant in Mississauga, Ontario is now operational. GGT plans to scale to a 1,000 tpa commercial facility with target operations in 2028. GGT’s business model is to be an operator and licensor of its technology and is actively collaborating with graphite miners and battery recyclers.
For more information, please visit our website at greengraphitetech.com or follow us on LinkedIn.