F. Li*, F. Xu*, Z.F. Lin*, Z.-S. Wu*

New Carbon Materials, 2022.

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Carbon-based materials have continuously drawn significant scientific attention as their adaptability to diverse energy related applications, especially concerning flexible and/or micro energy devices. In this issue, we have collected 7 original research articles and 8 comprehensive reviews focusing on the use of carbon and its related materials for energy devices, including flexible energy storage systems like solid-state Li ion batteries and electrochemical capacitors, Zn ion batteries or hybrid capacitors, K ion batteries and energy harvester like perovskite solar cells. Among these, micro energy devices include micro capacitors, Li-ion micro batteries, Zn micro batteries and 3D printed micro batteries. Carbon-based materials here, play multi-faceted roles as electrode active materials, flexible conductive substrates, carbon coating/buffer layers and porous hosts for active material confinement. These results solidify the legacy of carbon and exemplify the promising applications of carbon-based materials toward flexible and/or micro energy devices.