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Highlights
Kookaburra Graphite Project achieves battery-grade purity of ninety-nine point nine five percent total graphitic carbon
Purification workflow excludes hydrofluoric acid, delivering environmental and safety benefits
Battery anode material scoping study advances with micronisation and classification testing completed
The graphite mining sector occupies a vital position within resource markets tracked on the Australian Securities Exchange and the S&P ASX Index. Lincoln Minerals (ASX:LML) and its Kookaburra Graphite Project have marked a significant milestone by reaching specifications required for lithium-ion battery anode applications.
High-Purity Breakthrough at Kookaburra
Recent independent laboratory evaluations confirmed that graphite concentrate from the Kookaburra Project attains battery-grade purity of ninety-nine point nine five percent total graphitic carbon. Multiple test campaigns in two separate facilities within South Australia delivered consistent results that meet industry benchmarks for anode material feedstock.
Purification Process without Hydrofluoric Acid
The purification workflow for Kookaburra employs an alternative to hydrofluoric acid, simplifying process design while reducing environmental complexity. This approach aligns with modern expectations for green processing routes and mitigates hazards associated with acid handling. Enhanced safety protocols accompany the refined method.
Progress in Battery Anode Material Scoping Study
Following the high-purity confirmation, work on the battery anode material scoping study has moved forward. Micronisation and classification stages were carried out by an external service provider in Canada, where samples underwent milling to achieve a d-eight-zero distribution threshold. Subsequent evaluation in independent test houses advanced the project toward formal qualification.
Detailed Testing and Qualification Efforts
Graphite concentrate, averaging ninety-four point two percent TGC, was processed through a custom milling circuit to yield refined material with targeted particle size. Composite samples were dispatched for rigorous physical and chemical assessment, underpinning the technical dossier required for industry reporting standards. Collaborative data exchange with specialist laboratories supports ongoing process refinement.
Strategic Location on Eyre Peninsula
The Kookaburra site on South Australia’s Eyre Peninsula benefits from proximity to port infrastructure and established service networks. This regional setting supports efficient logistics for concentrate transport and access to skilled labour. Existing road and rail links facilitate sample dispatch and scaling of pilot-scale operations.
Industry observers track developments at Kookaburra amid evolving demand for high-grade graphite in battery markets. Milestone achievements in purity, coupled with a streamlined purification route, underscore Lincoln Minerals’ focus on delivering compliant anode material feedstock under contemporary environmental and safety frameworks.
