G CELLS™
GMG is advancing G CELLS™ – a world-exclusive aluminium-ion battery technology – in collaboration with The University of Queensland, UniQuest, Rio Tinto and the Battery Innovation Center.
Faster charging
Laboratory testing demonstrates six-minute full charging.
Rechargeable
Rechargeable and designed to be interchangeable with lithium-ion battery applications.
Greener and safer
The aluminium-ion chemistry uses no lithium or rare earth materials.
Strong partnerships
Developed in collaboration with UQ, UniQuest, Rio Tinto and the Battery Innovation Center.
A significant step closer to reality
Laboratory testing has demonstrated high energy density and higher power-density potential compared with lithium-ion technology. GMG reports longer battery life and much faster charging as the headline advantages, with scale-up research ongoing.
Compares with lithium-ion batteries while using a different chemistry.
Interchangeable and rechargeable, with comparable use cases to lithium-ion batteries.
No lithium or rare earth materials, supporting a cleaner supply chain.
Prototype development, not a finished consumer battery
G CELLS™ is a battery technology development program – not a finished consumer product. Progress is tracked through laboratory results, official announcements and prototype testing with partner organisations.
Battery performance at a glance
Faster charging
Laboratory testing has demonstrated up to 70 times faster charging compared to lithium-ion, with six-minute full charging achieved.
More battery life
Early testing indicates up to 3 times longer battery life compared to lithium-ion.
Greener and safer
The aluminium-ion chemistry uses no lithium or rare earth materials, reducing supply-chain risk.
49 Wh/kg progress milestone
In April 2026, GMG reported pouch-cell energy density of 49 Wh/kg – double the previous result – confirmed through BIC testing.
BTRL 4 development stage
Battery Technology Readiness Level 4, with pouch-cell optimisation ongoing.
Ongoing IP collaboration
Developed under an IP collaboration agreement with The University of Queensland.
Watch official battery demonstrations and partner updates
Five videos covering fast charging, laboratory capability, UQ innovation, pouch-cell prototypes and the Rio Tinto partnership.
Dated progress announcements
GMG doubles energy density of 6-minute charging graphene aluminium-ion battery
GMG reported pouch-cell energy density of 49 Wh/kg, double the previous result, confirmed through BIC testing.
GMG unveils graphene aluminium-ion battery that fully charges in 6 minutes
GMG announced full charging in six minutes as part of the graphene aluminium-ion battery development program.
GMG graphene aluminium-ion battery collaboration with Battery Innovation Center
The BIC collaboration supports accredited testing and next steps toward commercialisation of the battery program.