Magnis Resources Limited (“Magnis” or the “Company”) (ASX:MNS) is pleased to update the market on its spherical graphite production along with an escalation in resources devoted to its Lithium-ion Battery (LIB) commercial anode development programs. These resources include additional downstream technical expertise, industry leading battery test facilities to allow for full cells and battery fabrication development utilising Nachu anode material.
Building on previously released battery results, Magnis has today demonstrated that Nachu flake concentrate has significant flexibility in the production of spherical graphite for the rapidly evolving LIB industry.
CEO Dr Frank Houllis commented: “Magnis continues to advance both the Nachu graphite project and its spherical graphite strategy in parallel. The ability to produce a high quality spherical graphite product without the current Chinese process route requiring chemical and thermal purification has the potential to provide Magnis with a significant competitive advantage over existing production and potential new entrants.”
“Today’s agreement with Charge CCCV (C4V) and the experience the C4V team brings with industry leading expertise at the forefront of LIB development and research will be instrumental to Magnis as it executes the strategy of becoming a significant player in this lithium-ion supply chain.”
Recently the production of the uncoated spherical graphite was produced utilising commercially available milling equipment in Europe to perform the spheronisation step and Nachu flake concentrate produced from composite diamond drill core to ensure a representative sample of the ore body. Importantly no chemical or thermal purification was used in the production of the spherical graphite.
Typical yields of 75% are consistently produced which is significantly higher than existing spherical graphite production. Recent results have demonstrated an ability to engineer particles to produce anode powder with BET between 1.5 to 6m2/g and tap density between 0.9 to 1.2 g/cc which suits a wide range of end-users.
The higher yield and avoidance of toxic purification is expected to result in lower material input and power costs in the spheronisation process. The production and size distribution of spheroids were engineered to maximise packing density at the electrode level.
In production of spherical graphite Magnis targets the production of spheroids that exhibit robust contact interactions and optimum porosity which results in higher performance in batteries.
The highly ordered crystal structure and minimum disorder of Nachu flake graphite allows for high level of control and consistency through the spheronising process. The size and thickness of the Nachu flake provides Magnis with flexibility in the particle engineering process and provides a higher yield to spherical graphite, compared to the fine and thin natural graphite material utilised in existing production of spherical graphite from China.
The flexibility in production methods and their performance outputs have resulted in fine control over battery performance and full cell data from Nachu graphite. The range of outputs being produced from Nachu flake graphite allows Magnis to target both power and energy intensive applications in the LIB market.
Magnis and C4V have entered into a formal collaboration to continue the development of natural graphite anode material. The agreement covers both the development of spherical graphite anode material and the progression of silicon/graphite anode material to deliver a significant step change in battery mileage.
C4V is located in New York, USA and specialises in developing advanced materials for the LIB market. C4V is located in a facility at Binghamton University, that jointly houses Distinguished Professor M. Stanley Whittingham the inventor of lithium-ion batteries as well as an extensive analytical facility staffed by leading experts.
As a result of private and Government support, facilities in the field of battery technologies at the world leading Binghamton University and C4V labs have been recently upgraded to allow more precise fabrication and testing of LIBs. This includes the capability to build full 18650 and multi-layer pouch cells. This will assist in the speed of product research development capabilities to fully capture the value of Nachu high performance anode material.
Dr Frank Houllis - Chief Executive Officer
Magnis Resources Limited
+61 (0)2 8397 9888