Graphene Manufacturing gaining global interest

Graphene Manufacturing Group (TSX-V:GMG) continues to see a broad range of applications for a completed GMG Graphene Aluminium Ion Battery (G+AI Battery) utilising its ultra-high power-density and nominal energy density characteristics.

Along with mining giant Rio Tinto (ASX:RIO), GMG says a range of global companies have confidentially expressed interest in working with the company in vertical sectors such as electric vehicles, rail, aviation, personal electronics, energy storage, and diesel engine replacement.

The G+AI Battery is being developed by GMG and the University of Queensland.

GMG, which is a disruptive Australian-based clean-tech company listed on the TSX-V, has identified minimal temperature rise when charging and discharging its battery. The company says this is observed when charging and discharging multiple times at high C rates.

C rate measures the current in a which a battery can be charged or discharged.

Graphene Manufacturing says the temperature of a high-quality lithium-ion battery, produced by a world-leading brand can exceed 60 degrees Celsius when being discharged at the maximum current allowed (4.8 C-rate – an estimated 0.8 A/g on the cathode active material mass).

By comparison, GMG’s G+AI Battery temperature is 29 degrees Celsius when it is discharged at even higher current density (20 C-rate – about 2 A/g on the cathode active mass). The temperatures of both batteries were taken with the room temperature at 23.5 degrees Celsius (+/- 0.5 degrees Celsius).

The company intends to validate with further testing the possibility that its battery may not need thermal management, even at high charge and discharge rates. It says this creates the potential for significant cost reduction at the system level and highly reduced system cost.

GMG’s battery may not need a thermal management system when used in an electric vehicle battery pack or an energy storage system, which the company says will lead to a simpler, more cost effective and higher energy density battery pack.

The company says the elimination of thermal management can potentially reduce the weight of an electric vehicle battery pack by up to 16%.

GMG’s battery also has no combustible volatile organic materials, making it more resilient to the risk of chemical fires, such as those that have occurred with lithium-ion batteries.

GMG produces graphene and hydrogen by cracking methane (natural gas) instead of mining graphite. By using the company’s proprietary process, it can produce high quality, scalable, ‘tuneable’ and no/low contaminant graphene enabling demonstrated cost and environmental improvements in a number of world-scale planet-friendly/clean-tech applications.

Using this low input cost source of graphene, the company is developing value-added products that target the massive energy efficiency and energy storage markets. The company is pursuing additional opportunities for GMG graphene, including developing next-generation batteries, collaborating with world-leading universities in Australia, and investigating the opportunity to enhance the performance of lubricant oil and performance enhanced HVAC-R coating system.

Write to Adam Orlando at Mining.com.au

Images: Graphene Manufacturing
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Written By Adam Orlando
Mining.com.au Editor-in-Chief Adam Orlando has more than 20 years’ experience in the media having held senior roles at various publications, including as Asia-Pacific Sector Head (Mining) at global newswire Acuris (formerly Mergermarket). Orlando has worked in newsrooms around the world including Hong Kong, Singapore, London, and Sydney.