Conducting Polymers: An Organic Mixed Ion–Electron Conductor for Power Electronics (Adv. Sci. 2/2016)

Because solar and wind power produce electricity intermittently, electricity needs to be stored in large batteries composed of materials of high abundancy. X. Crispin and co‐workers demonstrate, in article number 1500305, that paper functionalized with a conducting polymer constitutes a promising electrode for supercapacitors, and potentially batteries. Atomic force microscopy reveals cellulose nanofibers with a conducting polymer coating, as demonstrated in the paper battery of the cover image.