VINYLIDENE FLUORIDE POLYMER POWDER, BINDER COMPOSITION, ELECTRODE MIXTURE, AND PRODUCTION METHOD FOR ELECTRODE

The vinylidene fluoride polymer powder according to the present invention is a vinylidene fluoride polymer powder having a median diameter of 50 µm or less as determined by a laser diffraction scattering method, in which the vinylidene fluoride polymer powder has a maximum melting peak temperature Tm1 of 130°C or higher at a first heating in differential scanning calorimetry, and the temperature at which a shear viscosity of a dispersion obtained by dispersing the vinylidene fluoride polymer powder in N-methylpyrrolidone at a concentration of 6 wt.% becomes equal to 5 times as great as the shear viscosity thereof at 30°C, is 44°C or higher and less than 80°C, where the shear viscosity is defined as a value measured at a shear rate of 100 s using a parallel plate rheometer while heating is performed from 25°C to 80°C at a temperature increasing rate of 5°C/min.