Ann: Magnis Technology Produces Globally Superior Battery Results, page-37

Adding to the above

https://www.nature.com/scitable/blog/eyes-on-environment/solving_the_silicon_swelling_problem

Beyond Graphite

The ultimate test of these new silicon-based anodes is to measure their capacity and lifetimes. Battery lifetimes are mainly determined by how their capacity changes over time after many charge-discharge cycles. Charging and discharging can lead to detrimental chemical reactions at the anode-electrolyte interface, limiting capacity during future cycles. Therefore, testing capacity after thousands of cycles tells researchers whether a particular battery design is commercially viable