Graphene Manufacturing Group (GMG) has announced that its graphene aluminium-ion batteries ("G+AI Battery") 2032 type coin cell prototypes have been sent to a number of prospective customers around the world.

GMG reports that coin cell testing to date has demonstrated that the GMG 2032 type G+AI Battery coin cell prototypes are fully rechargeable in several seconds, retain capacity for several thousand charge and discharge cycles, are non-flammable, and are relatively non-toxic and almost fully recyclable. These characteristics compare favorably against typical rechargeable Lithium-Ion 2032 type coin cells which take 3-6 hours to recharge, are toxic and can be quite harmful if ingested, are difficult to recycle, are flammable under certain conditions, and degrade more rapidly in performance.

GMG has reported that further battery development, in collaboration with the University of Queensland, has increased the capacity of the G+AI Battery coin cells, when compared to earlier proof of concept prototypes. The Company is also currently in the process of developing the technology required to increase the voltage of the coin cell from approximately 1.7 Volts to 3.4 Volts - making the G+AI Battery better suited for interchangeable use in existing everyday personal devices.

In addition to graphene manufactured by GMG, the Company also continues to test different grades of graphene from various sources for use in G+AI Batteries. GMG considers the performance characteristics of these prototypes clear enough to engage potential customers and industry partners for feedback on their commercial potential following subsequent further development.

GMG's CEO and Managing Director, Craig Nicol, said, "We are very pleased with the technical and commercial progress we have made to date on our G+AI Batteries, and with the level of interest received from potential customers. We look forward to customer feedback on these prototypes, and to progressing towards the commercialization of this impressive battery technology. In parallel we will continue to optimise and improve performance in our newly commissioned pilot plant and start to develop pouch pack formats during 2022 in addition to the coin cell."

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