Graphene Battery Breakthrough Sends Shares of This Small Cap Sharply Higher

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Monday, December 15, 2025

The press release headline grabbed attention, and the stock’s technical chart was clearly signaling a breakout. With both technical indicators and fundamental developments lining up, the small-cap stock appeared primed for a significant move, and it delivered, rallying nearly 20% in a single day.

As mentioned, shares of Graphene Manufacturing Group Ltd. (GMG) (TSX-Venture: GMG) (OTCQX: GMGMF) are surging today as the company released an update on its Graphene Aluminium-Ion (G+AI) Battery program, which is being advanced in partnership with the University of Queensland under a joint development agreement with Rio Tinto (NYSE: RIO), and supported by the Battery Innovation Center of Indiana. The company reports continued technical progress and believes the technology is approaching performance levels comparable to high-power Lithium Titanate Oxide (LTO) batteries, which are widely used in demanding energy-storage applications.

While LTO batteries can command prices of up to US$1,500 per kilowatt-hour in a global market that reached approximately US$5.6 billion in 2025, GMG expects its G+AI Battery to be manufactured at significantly lower cost. Once fully developed, the company believes the battery will meet key performance targets, including ultra-fast charging in under six minutes, energy density exceeding 100 Wh/kg after one hour, a cycle life of around 10,000 charges, and enhanced safety due to the absence of lithium, reduced thermal runaway risk, and potentially no need for active thermal management systems.

Shares of GMG are currently trading up 16.43% at $1.63, while U.S. listed shares (GMGMF) are up 17.24% at $1.19 in mid-afternoon trading.

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