SECONDARY BATTERY ELECTRODE, SECONDARY BATTERY, AND PRODUCTION METHOD THEREFOR

An electrode for a secondary battery, including carbon nanotubes and active material particles having an average particle size of 2 to 1000 nm supported in a state of being dispersed in the carbon nanotubes, wherein a mass ratio of the carbon nanotubes to a total mass of the active material particles and the carbon nanotubes is 0.1 wt % or more.