Archer successfully produces batteries with Campoona graphite

By Justin Ware. Published at Aug 21, 2018, in Mining

Archer Exploration (ASX:AXE) has provided an update on its collaboration with the University of New South Wales (UNSW).

Functional full-cell lithium ion batteries, which utilise the company’s Campoona graphite have been successfully assembled. In addition, the batteries are commercially scalable and have been validated for performance.

AXE’s Campoona graphite was utilised at the anode, while commercially equivalent cathode materials and chemistries used in consumer electronics and electric vehicles.

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Lithium-nickel-manganese-cobalt (NMC), lithium-iron phosphate (LFP) and lithium-cobalt oxide (LCO) were used to construct the full-cells – with the batteries being prepared as coin-cells (resembling a coin).

AXE coin-cell batteries

AXE’s 99% acid-leached graphite from Campoona was used without further optimisation. The NMC and LCO cathode bodies were prepared at UNSW, with the LFP cathode commercially sourced.

Synthesis, fabrication, characterisation and testing was undertaking by the UNSW on campus. Key performance standards were in line with industry state-of-art values, due in part to the exceptional properties of the company’s Campoona graphite.

AXE CEO Dr Mohammad Choucair commented on the promising development, “The speed in which we are able to deliver such exceptional outcomes is testament to the strong technical leadership and culture of excellence at Archer.

“Collaboration with UNSW has greatly accelerated our advance in the battery space. We are now able to demonstrate complete, functioning, and commercially relevant batteries with Archer’s graphite.

“We have reached a major milestone towards integrating our substantial graphite resource in the lithium ion battery supply chain. The work definitively shows that Archer’s graphite can be used in conjunction with different types of cathodes, making it suitable for multiple potential battery markets.”

Next steps

AXE will now turns its focus to addressing the trade-off between cost and battery performance. The company will continue to seek partnerships with lithium ion battery manufacturers to scale and integrate Campoona graphite further in the supply chain.

The ongoing collaboration with UNSW will continue, with the intention of generating add on value to AXE’s proposed Campoona development through the co-development of IP geared around ultra-high graphite purity.

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