The world’s thinnest, strongest and most conductive material – graphene – can boost energy storage capacity by almost threefold. Argonne National Laboratory Assuming you are geeky enough to open up any mobile device on the market – a phone, tablet or laptop – the most glaringly obvious component of the device is the battery: it generally consumes up to (if not more than) 60% of space. It’s disappointing to think the gadgets you carry are basically packs of energy-storage devices. Just think how much more portable those devices could be if their batteries were smaller and more powerful. Such possibilities may not be far off. HighTechDad Electrochemical capacitors, as an emerging type of advanced energy storage device, have attributes better than their conventional battery counterparts such as fast charging capability and almost unlimited lifespan. Today, in Science, my colleagues and I show how energy storage capacity of an electrochemical capacitor can be doubled by manipulating a single layer of carbon atoms known as graphene. Electrochemical capacitor evolution While we should be stunned by how far we’ve increased computing power in downsized space (the first computers filled entire rooms) the efficiency of an energy-storage device – the amount of energy stored per unit
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