POLYTETRAFLUOROETHYLENE, ELECTROCHEMICAL DEVICE BINDER, ELECTRODE MIXTURE, ELECTRODE, AND SECONDARY BATTERY

A polytetrafluoroethylene for use in an electrochemical device binder, the polytetrafluoroethylene being less prone to fibrillation during transportation and having ease of feeding. An electrochemical device binder, an electrode mixture, an electrode, and a secondary battery each containing the polytetrafluoroethylene. A polytetrafluoroethylene for use in an electrochemical device binder, the polytetrafluoroethylene having a specific surface area of 0.5 m/g or more and less than 7.0 m/g.