Line Plot from Scientific Research

c lattice parameter as a function of x in LixNb2O5. Grey dots represent the average c parameter obtained from the SXRD data. Blue, red and green dots denote the c parameter of the o-, m- and t- phases, respectively, extracted from the in situ X-ray diffraction data. The purple line is the voltage curve obtained for a powder electrode in a coin cell during a galvanostatic measurement including open circuit voltage steps. Colour zones highlight four regions: (1) pristine o-phase from Li0Nb2O5 to Li0.8Nb2O5 (white), (2) a 25/75% mixture of the o- and m-phases from Li0.8Nb2O5 to Li1.8Nb2O5 (pink), (3) progressive formation of the t-phase from Li1.8Nb2O5 to Li3Nb2O5 (green), (4) no change of the X-ray diffraction pattern from Li3Nb2O5 to Li4Nb2O5 (grey).

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