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In an exciting development reported in Nature Communications published on 30 October 2024, IMRE researchers have introduced an innovative approach to magnesium (Mg) battery technology that promises significant improvements in safety and practicality. The study reveals the creation of a waterproof Mg anode achieved simply by pencil drawing, a technique that can change the landscape of battery manufacturing and use. By employing this remarkably straightforward method, the Mg anode can operate efficiently with aqueous electrolytes. This transition is particularly noteworthy because aqueous electrolytes pose much less risk of fire and explosion compared to the flammable organic electrolytes that are traditionally used in Mg batteries.