Capacity fade in high energy silicon-graphite electrodes for lithium-ion batteriesElectronic supplementary information (ESI) available: Experimental section, Fig. S1-S11. See DOI: 10.1039/c8cc00456k

A silicon-graphite blended anode is paired with a high capacity LiFePO 4 reference/counter electrode to track irreversibility and lithium inventory. The LiFePO 4 electrode provides a reliable, flat potential for d Q d V −1 analysis of Li x Si and Li x C electrochemical reactions. We relate this electrochemistry to the morphological and physical changes taking place. A silicon-graphite blended anode is paired with a high capacity LiFePO 4 reference/counter electrode to track irreversibility and lithium inventory.