Fig. 6

Differential electrochemical mass spectrometry (DEMS) study of Li1.15Ni0.375Ti0.375Mo0.1O2 (LN15), Li1.2Ni0.333Ti0.333Mo0.133O2 (LN20), and Li1.15Ni0.45Ti0.3Mo0.1O1.85F0.15 (LNF15). Voltage profiles (black solid) of a LN15, b LN20, and c LNF15 when charged to 4.8 V and discharged to 1.5 V at 20 mA g–1, along with the DEMS results on O2 (red circle) and CO2 (blue triangle)