Volt Carbon Technologies Announces Record Expansion Results of Its Dry Separated Natural Flake Graphite

In This Article:

Calgary, Alberta--(Newsfile Corp. - August 6, 2024) - Volt Carbon Technologies Inc. (TSXV: VCT) (OTCQB: TORVF) ("Volt Carbon" or the "Company") is pleased to announce the expansion results of its graphite produced at the Company's dry processing facility in Scarborough, Ontario.

Highlights

The team at Volt's Guelph Battery Plant laboratory, in partnership with Director Dr. Aiping Yu and her team from the University of Waterloo, has successfully developed and tested expansion protocols for dry-separated natural flake graphite. These tests encompassed various flake sizes: +50 mesh, +30 mesh, and +20 mesh, produced using Volt's proprietary dry processing from the Scarborough facility, sustainably manufactured without the use of water, chemicals, or generation of wet tailings.

The expansion results were the highest recorded by Volt. The combination of sulfuric acid and potassium permanganate delivered optimal expansion, with dry-separated natural graphite reaching over 400 ml/g for products larger than +50 mesh. These chemicals intercalate between graphite flakes, and when heated, they expand dramatically in an accordion-like manner. In addition, a third-party test by ProGraphite GmbH on Volt's +80 mesh graphite confirmed its excellent expandability, achieving over 98.2% carbon purity and 325 mg/l using Volt's proprietary dry processing. For more details on the ProGraphite study, see: ProGraphite Study.

The objective of this expandable graphite testing was to provide actual results for various dry-separated graphite sizes and fractions, which will be available for purchase from our online store starting August 12, 2024, as announced in our previous press release dated July 18, 2024. The results also indicated a significantly lower oxidation rate in dry separation compared to flotation, consistently suggesting potential for up to 15% higher yields for all downstream processing of dry-separated graphite, including conversion to battery anode material. This will result in substantial cost reductions for consumers of this graphite.

Expandable natural graphite is essential for industries producing fire-resistant building materials, textiles, and graphite foils. These promising results pave the way for further process optimization and product enhancements. Volt Carbon Technologies is dedicated to advancing research in expandable graphite while simultaneously developing battery anode materials, aiming to create additional value-added carbon products and capitalize on the unique anisotropic properties of natural flake graphite.