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GMG Doubles Energy Density of 6 Minute Charging Graphene Aluminium-Ion Battery
Brisbane, Australia--(Newsfile Corp. - April 15, 2026) - Graphene Manufacturing Group Ltd. (TSXV:...
About this update from Graphene Manufacturing Group Ltd
[{"type":"text","content":"GMG Doubles Energy Density of 6 Minute Charging Graphene Aluminium-Ion BatteryBrisbane, Australia--(Newsfile Corp. - April 15, 2026) - Graphene Manufacturing Group Ltd. (TSXV: GMG) (OTCQX: GMGMF) (\"GMG\" or the \"Company\") is pleased to provide the latest progress update on the Graphene Aluminium-Ion Battery technology (\"G+A CELLS\") being developed by GMG and the University of Queensland (\"UQ\") under a Joint Development Agreement with Rio Tinto, one of the world's largest metals and mining groups, and with the support of the Battery Innovation Center of Indiana (\"BIC\") in the United States of America. The GMG G+A CELLS have now demonstrated superior performance characteristics when compared to a representative market leading ultra-fast charging batteries, the Lithium Titanate Oxide (\"LTO\") batteries, which can be sold at a premium price of up to US$1200/kWh.1 Figure 1 shows the current energy density of G+A CELLS, based on BIC testing, and shows the doubling in performance (26 to 49 Wh/kg) since the previous announcement in December 20252 and in comparison, to a representative market leading fast charging high power LTO batteries.Figure 1: Increase in Energy Density for G+A CELLS since December '25 UpdateTo view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/8082/292641_figure1.jpgFigure 2 shows the charge and discharge curves for the G+A CELLS when charged in 6 minutes (10C) and 60 minutes (1C). The energy density of the cells for the G+A CELLS when charged in 60 minutes (1C) is now 101 Wh/kg when charging to 100% State of Charge (SOC) which is an increase from 58 Wh/kg from the previous update. This shows the G+A CELLS have a nominal voltage of approximately 3.2 Volts (an increase from 3.0 Volts in the previous update). The G+A CELLS maintained performance over hundreds of cycles at 6-minute fast charging rate (10C). Figure 2: Battery performance curves of G+A CELLS at 60 min and 6min charge (1C & 10C)To view an enhanced version of this graphic, please visit:https://images.newsfilecorp.com/files/8082/292641_9a72ca9bb4963a29_001full.jpgBob Galyen, GMG Non-Executive Director and former CTO of CATL - the largest battery manufacturer in the world, commented: \"With the possibility of charging from empty to full in around six minutes, this chemistry fundamentally changes how de...