In situ high-energy synchrotron X-ray diffraction studies and first principles modeling of α-MnO₂ electrodes in Li–O₂ and Li-ion coin cells

Abstract

<italic>In situ</italic> synchrotron diffraction and first principles modeling shows structural changes in α-MnO₂ during cycling in Li–O₂ battery cells, as lithium and oxygen are incorporated into and removed from tunnels in the structure.