A deterioration estimation device (1) includes: a discharge control unit (11) configured to discharge a lead-acid battery (3) or a lead-acid battery module (4) that includes a plurality of lead-acid batteries until the lead-acid battery (3) or the lead-acid battery module (4) reaches a predetermined SOC; and a first estimation unit (11) configured to estimate a rate of deterioration of the lead-acid battery (3) or the lead-acid battery module (4) based on internal resistance or conductance derived when the lead-acid battery (3) or the lead-acid battery module (4) is discharged.

A power management device is a power management device that controls a temperature inside a housing in a power storage system that includes a power storage device including a storage battery and the housing for housing the power storage device. The power management device includes an acquisition unit that acquires status information indicating a status of the power storage system, a calculation unit that calculates a target temperature in the housing based on an allowable capacity deterioration rate of the storage battery, and an air volume control unit that controls an air volume of a fan provided in the housing based on the status information and the target temperature.

A method and apparatus for monitoring an internet-of-things (IoT) battery device (IBD). An example IBD includes a radio transceiver to communicate with an IoT charging device (ICD), a battery, and a battery monitor to determine a state of charge for the battery. An alerter is included to send an alert message to the ICD, via the radio transceiver, to indicate that the SoCh is less than an alert threshold.

A battery temperature adjustment system includes: a battery; a cooling device to which electric power from an external power source and electric power from the battery are selectively supplied and configured to cool the battery; and a control device configured to control the cooling device to adjust a state of charge of the battery and a battery temperature. The control device stores a deterioration sensitivity map in which a deterioration sensitivity is preset according to the state of charge and the battery temperature, or is configured to calculate a deterioration sensitivity according to the state of charge and the battery temperature, and when a vehicle is connected to the external power source, the control device selects either the electric power from the battery or the electric power from the external power source based on the deterioration sensitivity to operate the cooling device.

Systems, methods, and devices are provided for estimating a state-of-health (SOH) in an energy storage system, where the estimate accounts for both power fade and capacity fade. The SOH estimation system comprises a SOH estimation module configured to receive, and to determine the estimate of the SOH based on: a nominal capacity input; a voltage input; a current input; a nominal open circuit voltage curve; an operational resistance model; a nominal resistance model; an operational dynamic model; and a rated discharge current. The SOH estimation module may further comprise a SOH aggregation module configured to receive a power rating estimate, PR.sub.n, and a normalized capacity estimate, NC.sub.n, and may be configured to determine the estimate of the SOH based on the power rating estimate, PR.sub.n, and the normalized capacity estimate, NC.sub.n.

Disclosed is an apparatus for non-destructive-type diagnosis of a degree of degradation of a battery. The apparatus includes: a chamber inside which a battery subject to inspection is arranged; a charging and discharging unit connected to a lead portion of the battery and charging or discharging the battery; a thermoelectric element module thermally connected to the battery and generating an electromotive force caused by heat generated by charging and discharging the battery; a first measurement unit measuring the electromotive force generated by the thermoelectric element module; a second measurement unit measuring a change in impedance due to the charging and discharging of the battery; and a determination unit comparing data on the electromotive force of the battery, measured by the first measurement unit, and data on the impedance of the battery, measured by the second measurement unit, with pre-prepared comparative data and determining a degree of degradation of the battery.

According to an embodiment, an electronic device may include: a battery and at least one processor, wherein the at least one processor is configured to charge the battery up to a full-charge voltage of the battery when the full-charge voltage of the battery is a first full-charge voltage and the battery is charged repeated by a specified count with a second current value, set the full-charge voltage of the battery to a second full-charge voltage lower than the first voltage and when the full-charge voltage of the battery is the first full-charge voltage and the battery is charged repeatedly by the specified count with a first current value lower than the second current value, maintain the full-charge voltage of the battery to the first full-charge voltage.

An electronic device includes: a first processor; a load that operates with power supplied by a rechargeable battery; and a first sensor that obtains information on an output voltage of the rechargeable battery. The first processor determines whether the rechargeable battery is in a low usage state with regard to power supply by the rechargeable battery. Based on the information obtained by the first sensor, the first processor determines a degree of decrease in the output voltage over a period of time during which the rechargeable battery is determined to be in the low usage state. Based on the determined degree of decrease, the first processor detects a deterioration of the rechargeable battery.

In a method for operating an electric vehicle and an electric vehicle, including an electric traction drive device for driving vehicle, a control device for controlling the driving, a first energy storage device, for supplying the control device using a first DC voltage, a second energy storage device, for supplying the traction drive device using a second DC voltage, and an energy supply unit for providing an output DC voltage, the first energy storage device is connected to the second energy storage device via a converter device, the first energy storage device is connected to the energy supply unit, the converter device converts the first DC voltage into the second DC voltage, and a power flow from the second energy storage device to the first energy storage device is prevented.

Provided is a storage for used battery units capable of economically storing a plurality of used battery units of various manufacturers while suppressing the deterioration of the used battery units during storage. The storage for used battery units includes: a selection unit that selects a discharge target battery unit and a charge target battery unit from among the plurality of used battery units on the basis of the current values and the voltage values of the plurality of used battery units in storage and the predetermined SOC range of each of the plurality of used battery units; and a charge/discharge control unit which causes a discharge target battery unit to be discharged and charges the discharged power into a charge target battery unit such that the SOCs of the discharge target battery unit and the charge target battery unit reach a predetermined SOC range.