Rio Tinto Group’s efforts to expand its presence in battery materials are drawing attention following progress on graphene-based battery technology developed with Graphene Manufacturing Group (GMG), alongside the miner’s third-quarter 2026 production update.
Under a joint development agreement between the companies, GMG has reported progress on its graphene G®CELLS technology, which the supplied report describes as maintaining performance over rapid charging cycles. The development adds a technology-focused dimension to Rio Tinto’s wider battery materials strategy, although it is not yet identified as a current earnings driver.
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