Fig. 3: KMF characterisation.
From: Characterisation and modelling of potassium-ion batteries
Characterisation of the potassium manganese hexacyanoferrate \({{{{\rm{K}}}}}_{2}{{{\rm{Mn}}}}[{{{\rm{Fe}}}}{({{{\rm{CN}}}})}_{6}]\) (KMF). a Rietveld refinement of synchrotron XRD pattern (data in black, fit in peach, data-fit difference in grey, and reflection positions below in green). b SEM image of a particle. c Particle size distribution. d Open-circuit voltage (OCV) profile from Kang-Chueh GITT during depotassiation at 20 °C. e Effective diffusivity over composition from Kang-Chueh GITT at 20 °C. Greyed out points indicate data which may be affected by CEI formation. f Exchange current density over composition at 20 °C. Error bars depict the standard error in the mean from at least two repeat measurements.
