A hierarchical porous electrode using a micron-sized honeycomb-like carbon material for high capacity lithium–oxygen batteries†
Abstract
A micron-sized honeycomb-like carbon material (MHC) is prepared in a facile way using nano-CaCO3 as a hard template. A novel electrode for lithium–oxygen batteries is fabricated and displays a superior discharge capacity as high as 5862 mA h g−1. The higher