Abstract: Provided is an estimation device including: an acquisition unit that acquires measurement data on an energy storage device; an estimation unit that estimates the amount of deterioration for each deterioration mechanism of the energy storage device based on the acquired measurement data; and an output unit that outputs information based on an estimation result of the estimation unit.

Abstract: This estimation device is provided with: an acquiring unit which acquires a measurement result from a temperature sensor for measuring temperature at a specific location to which heat generated by an electrical storage device is transmitted; and an observer which, in accordance with input of the measurement result, estimates the temperature at a location where the temperature sensor has not performed measurement.

Abstract: The present invention provides an estimation device and an estimation method. The present invention comprises: an input unit to which are inputted an element temperature measured for some power storage elements among a plurality of power storage elements that constitute a power storage device, and an environment temperature of the power storage device; and an estimation unit that estimates the temperature of the power storage elements on the basis of a heat balance model for the power storage elements, the heat balance model being represented using the element temperature and the environment temperature.

Abstract: A development support device includes a receiver that receives selection information about a degradation mechanism of a power storage device from a terminal device after user authentication of the terminal device, a simulation execution unit that simulates degradation of the power storage device by using the selected degradation mechanism based on the received selection information, and a transmitter that transmits a simulation result by the simulation execution unit or a simulation program executed in simulating the degradation of the power storage device to the terminal device.

Abstract: This simulation method includes accepting a simulation condition relating to an electricity storage device; and calculating a short circuit current on the basis of the accepted simulation condition to simulate a thermal phenomenon from the electricity storage device to the outside.

Abstract: The present invention provides a simulation method, a simulation device, and a simulation program. A method for simulating a cell in which the electrolyte is a molten salt, the simulation method involving simulating the behavior of the cell and including a process for raising the temperature of the molten salt.

Abstract: A development support device, a terminal device, a development support method, and a computer program are provided. A receiving unit that receives a simulation condition of a power storage device from a terminal device after user authentication of the terminal device, a simulation execution unit that simulates behavior of the power storage device based on the received simulation condition, and a transmission unit that transmits a simulation result by the simulation execution unit to the terminal device are included.

Abstract: Provided is an estimation device including: an acquisition unit that acquires measurement data on an energy storage device; an estimation unit that estimates the amount of deterioration for each deterioration mechanism of the energy storage device based on the acquired measurement data; and an output unit that outputs information based on an estimation result of the estimation unit.

Abstract: Provided is an energy storage device state estimation device (100) for estimating a state of an energy storage device (200), the energy storage device state estimation device (100) including: a temperature estimation part (110) configured to estimate a temperature of the energy storage device (200); and a state estimation part (120) configured to estimate a state of the energy storage device (200) using the temperature of the energy storage device (200), wherein the temperature estimation part (110) is configured such that the energy storage device (200) is divided into a plurality of regions, the respective regions are set as internal regions, a region outside the energy storage device (200) adjacently disposed to the internal region is set as an external region, and a temperature of the energy storage device (200) is estimated using an internal heat transfer amount which is a transfer amount of heat between the two internal regions disposed adjacently to each other and an external heat transfer amount which

Abstract: A post-deterioration performance estimating apparatus wherein a post-deterioration performance value indicates performance of an energy storage device. The apparatus includes a post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between a cumulative operating period and a resistance value, (2) a relation between the resistance value and energy storage capacity, and (3) the cumulative operating period at the deterioration point. Alternatively, the post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between an equilibrial capacity decreased amount, (2) a kinetic capacity decreased amount, and (3) a cumulative operating period at the deterioration point.

Abstract: Provided is an energy storage device state estimation device (100) for estimating a state of an energy storage device (200), the energy storage device state estimation device (100) including: a temperature estimation part (110) configured to estimate a temperature of the energy storage device (200); and a state estimation part (120) configured to estimate a state of the energy storage device (200) using the temperature of the energy storage device (200), wherein the temperature estimation part (110) is configured such that the energy storage device (200) is divided into a plurality of regions, the respective regions are set as internal regions, a region outside the energy storage device (200) adjacently disposed to the internal region is set as an external region, and a temperature of the energy storage device (200) is estimated using an internal heat transfer amount which is a transfer amount of heat between the two internal regions disposed adjacently to each other and an external heat transfer amount which

Abstract: A deterioration state detection apparatus for detecting a deterioration state of capacity enabling charge or discharge of a nonaqueous electrolyte secondary battery includes: an acquisition unit that acquires a capacitance of the nonaqueous electrolyte secondary battery: and a determination unit that determines the deterioration state of capacity enabling charge or discharge of the nonaqueous electrolyte secondary battery, from change of the acquired capacitance.

Abstract: A life estimating apparatus estimating a residual life that is of a usable accumulated residual period of an energy storage device, the life estimating apparatus includes: a relational expression acquisition unit that acquires a relational expression, in which a resistance value of a DC resistance or an AC resistance of the energy storage device at an accumulated use period elapsed time point that is of an accumulated value of a use period of the energy storage device is given by an expression including a term of a function of the accumulated use period; and a residual life estimating unit that estimates the residual life of the energy storage device using the acquired relational expression.

Abstract: A performance deterioration detecting apparatus configured to detect a performance deterioration start state of an energy storage device. The performance deterioration start state is an initial state of deterioration in performance of the energy storage device. The apparatus includes a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state based on a displacement of peak position in a capacity-voltage property of the energy storage device with time. The capacity-voltage property indicates a relation between a capacity variation amount (dQ/dV) and a voltage (V).

Abstract: A post-deterioration performance estimating apparatus wherein a post-deterioration performance value indicates performance of an energy storage device. The apparatus includes a post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between a cumulative operating period and a resistance value, (2) a relation between the resistance value and energy storage capacity, and (3) the cumulative operating period at the deterioration point. Alternatively, the post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between an equilibrial capacity decreased amount, (2) a kinetic capacity decreased amount, and (3) a cumulative operating period at the deterioration point.

Abstract: A performance deterioration detecting apparatus configured to detect a performance deterioration start state of an energy storage device. The performance deterioration start state is an initial state of deterioration in performance of the energy storage device. The apparatus includes a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state based on a displacement of peak position in a capacity-voltage property of the energy storage device with time. The capacity-voltage property indicates a relation between a capacity variation amount (dQ/dV) and a voltage (V).

Abstract: A post-deterioration performance estimating apparatus estimates a post-deterioration performance value indicating performance of an energy storage device at a predetermined deterioration point, wherein discharge capacity of the energy storage device discharging at a predetermined first current is referred to as energy storage capacity, discharge capacity of the energy storage device discharging at a second current of a current value smaller than that of the first current is referred to as small current discharge capacity, a relational expression on relation among initial capacity of the energy storage device, a first capacity decreased amount obtained by subtracting the small current discharge capacity from the initial capacity, a second capacity decreased amount obtained by subtracting the energy storage capacity from the small current discharge capacity, and a cumulative operating period as a cumulative value of operating periods of the energy storage device is referred to as a first relational expression,

Abstract: A performance deterioration detecting apparatus detects an initial state of sudden deterioration in performance of an energy storage device as a performance deterioration start state, and includes: a first acquiring unit configured to acquire a first maximum variation amount as a maximum value of a capacity variation amount that is a degree of variation in current carrying capacity relative to variation in voltage of the charged or discharged energy storage device, regarding a capacity-voltage property at a first time point, indicating relation between the capacity variation amount and the voltage; a second acquiring unit configured to acquire a second maximum variation amount as a maximum value of the capacity variation amount regarding the capacity-voltage property at a second time point after the first time point; and a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state at the second time point if a variation amount ra

Abstract: A life estimating apparatus estimating a residual life that is of a usable accumulated residual period of an energy storage device, the life estimating apparatus includes: a relational expression acquisition unit that acquires a relational expression, in which a resistance value of a DC resistance or an AC resistance of the energy storage device at an accumulated use period elapsed time point that is of an accumulated value of a use period of the energy storage device is given by an expression including a term of a function of the accumulated use period; and a residual life estimating unit that estimates the residual life of the energy storage device using the acquired relational expression.

Abstract: A deterioration state detection apparatus for detecting a deterioration state of capacity enabling charge or discharge of a nonaqueous electrolyte secondary battery includes: an acquisition unit that acquires a capacitance of the nonaqueous electrolyte secondary battery: and a determination unit that determines the deterioration state of capacity enabling charge or discharge of the nonaqueous electrolyte secondary battery, from change of the acquired capacitance.