NOVELTY - The system has a controller for identifying the state of electricity storage blocks. A current limiter is provided in the electricity storage elements, so as to disconnect the current path inside the storage elements. A controller obtains (S101) the internal resistance and full charge capacity of electricity storage blocks and specifies (S104) the number of current limiters in a disconnection state using the change rate between the obtained parameter and a parameter value of storage block without the current limiter in the disconnection state.    USE - Electrical storage system such as battery system used in electric vehicle and hybrid vehicle.    ADVANTAGE - The operating state of the current limiter can be determined easily and effectively. The number of current limiters in disconnection state can be grasped easily, so as to suppress the increase in electric current load with respect to an electrical storage element. The number of activated current limiters and disconnected current limiters included in the respective electricity storage elements can be identified easily and effectively, by using the controller. The output voltage of the assembled battery can be secured, by connecting several battery blocks in series with each other. The electric current is sent through the electrical resistor, so as to suppress the flow of rush current in the inside of electric power generation element.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the method for determining the state of electrical storage block.    DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the process of specifying the number of current limiters in disconnection state. (Drawing includes non-English language text)    Step for obtaining the internal resistance and full charge capacity of electricity storage blocks (S101)    Step for computing the resistance change rate (S102)    Step for determining whether the time interval is less than the predetermined period (S103)    Step for specifying the number of current limiters in disconnection state (S104)