operando synchrotron X-ray diffraction and pair distribution function analysis: understanding lithiation/delithiation mechanism in graphite-

In this proposal, we aim to gain insights into lithium distribution and lithiation/delithiation mechanism of graphite-silicon (Gr-Si) composite anode using combined techniques of high-energy operando synchrotron X-ray diffraction and total X-ray scattering analyzed by pair distribution function. We aim to probe the degradation mechanism of Gr-Si anode cycled at different C-rates in long- and short-structure ranges. The proposed experiments are under the umbrella of the Big-Map and BATTERY 2030+ projects.