In Situ Diffraction

The scope for in situ diffraction experiments has increased enormously over recent years as more intense sources of X-rays and neutrons have enabled experiments to be carried out on smaller samples or faster transformations, or in environments with poor access to the probe. Pannetier and his colleagues are studying chemical and structural changes that occur inside a solid-state battery as it discharges and the cell reaction proceeds. Neutron diffraction provides a direct probe of these processes in real time in the chemical environment most relevant to the problem.