Catastrophic failures of lithium batteries is a major safety concern, however our understanding and control over the mechanisms of these failures is still lacking. Lithium is unlikely to be usurped as the best candidate for high performance batteries, so further understanding to prevent future debacles like the note 7 are of utmost importance. Neutrons are ideally suited to studying lithium batteries since they can be used with complex sample environment and are highly sensitive to lithium (which unusually has a negative scattering length). We aim to start with simple proof of principle reflectivity measurements on different substrates (electrodes) to help optimise the sample environment and find what is possible with these systems with reflectivity. We aim to look at kinetic lithium loading and unloading in silicon, graphite and glassy carbon.