LAYERED BATTERY INTERNAL RESISTANCE MEASURING APPARATUS.

摘要

This layered battery internal resistance measuring apparatus is provided with: an AC power supply unit for outputting an AC current to an object for internal resistance measurement connected to the AC power supply unit, the internal resistance measured object including at least a layered battery comprising a plurality of generating elements; an AC adjustment unit for adjusting the AC current so that a positive pole side AC potential difference which is a potential difference determined by subtracting a halfway portion potential from a potential at a portion of the internal resistance measured object that is connected to a load apparatus on a positive pole side, corresponds to a negative pole side AC potential difference which is a potential difference determined by subtracting the halfway portion potential from a potential at a portion of the internal resistance measured object that is connected to the load apparatus on a negative pole side; and a resistance calculating unit for calculating the resistance of the layered battery on the basis of the adjusted AC current and the AC potential differences.