GMG announces battery milestone amid Asia Pacific expansion push

Testing conducted by BIC on 1 Ah G®CELLS – built by BIC using materials developed, manufactured, and supplied by GMG at its Brisbane Battery Development Centre – reportedly showed no measurable capacity fade after 489 charge-discharge cycles as of September 4, 2026, despite each full cycle (10C charge, 10C discharge) completing in just six minutes. By comparison, a benchmark lithium titanate oxide (LTO) cell, cycled under the same profile, degraded to 86% of its original capacity – near the industry-standard 80% end-of-life threshold – within just 64 cycles. That puts the G®CELLS’ demonstrated cycle life at more than seven times that of the LTO benchmark.

Graphene Manufacturing Group (GMG) has released new third-party cycling data on its fast-charging G®CELLS graphene battery technology, developed under GMG’s Joint Development Agreement with mining giant Rio Tinto and with support from the Battery Innovation Center of Indiana (BIC) in the United States.Testing conducted by BIC on 1 Ah G®CELLS – built by BIC using materials developed, manufactured, and supplied by GMG at its Brisbane Battery Development Centre – reportedly showed no measurable capacity fade after 489 charge-discharge cycles as of September 4, 2026, despite each full cycle (10C charge, 10C discharge) completing in just six minutes. By comparison, a benchmark lithium titanate oxide (LTO) cell, cycled under the same profile, degraded to 86% of its original capacity – near the industry-standard 80% end-of-life threshold – within just 64 cycles. That puts the G®CELLS’ demonstrated cycle life at more than seven times that of the LTO benchmark.

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