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In the last decades,considerable efforts have been made to increase the gravimetric energy density of electro-materials.The volumetric energy density has started to receive more attention only recently with the emergence of miniaturized and on-board energy storage devices.As supercapacitors and batteries go smaller,the main challenge
In the last decades, considerable efforts have been made to increase the gravimetric energy density of electro-materials. The volumetric energy density has started to receive more attention only recently with the emergence of miniaturized and on-board energy storage devices. As supercapacitors and batteries go smaller, the main challenge