Fine-grained metal oxide and nanomaterials are traditionally difficult and expensive to produce.
Under the terms of the agreement Galan will take an 80% interest in the project.
Situated in the NT's Bynoe pegmatite field Finniss has mineral resources of 9.63 million tonnes.
The subsequent scoping study showed the mine also had potential for downstream processing.
According to Platts battery grade lithium carbonate prices are up 35% on last year.
An external, Australian appointment had been hoped for.
The JV is expected to get the Kwinana plant into production next year.
The company has produced some LMFP battery cells for testing.
Industry thanks WA government for throwing lifeline to lithium miners.
Taskforce to boost WA's battery industry opportunities.