Cotton pad-derived large-area 3D N-doped graphene-like full carbon cathode with an O-rich functional group for flexible all solid Zn–air batteries

Abstract

A flexible 3D N, O-doped graphene-like full carbon cathode has been synthesized with a cotton pad as a template<italic>via</italic>a scalable and one-step pyrolysis process, and can be directly used as an efficient air cathode for flexible all solid-state ZABs.