Abstract: A state estimator estimates, based on at least one of a voltage, a current, and a temperature of a secondary battery, a state of the secondary battery including a state of charge (SOC) of the secondary battery. A discharge controller discharges, when a state of non-use of the secondary battery lasts for a predetermined period of time, the secondary battery such that an indicator indicating easiness of storage deterioration of the secondary battery to progress decreases in stages. The indicator includes a parameter that depends on an SOC of the secondary battery. A value of the indicator and a duration of stay in each stage are set such that a predetermined relationship holds between products in a plurality of stages, each of the products being derived from multiplying the value of the indicator and the duration of stay in each stage.

Abstract: According to the present invention, a state management unit measures or estimates the AC resistance value of a secondary cell at a plurality of time points, estimates a predicted transition of the AC resistance value of the secondary cell on the basis of the AC resistance value at the plurality of time points, and estimates a remaining use period until the AC resistance value of the secondary cell reaches a resistance threshold value corresponding to a time point at which usage of the secondary cell ends. When the remaining use period of the secondary cell becomes shorter than a prescribed period, an operation management unit changes the usage manner of the secondary cell method to a usage manner that has a smaller load on the secondary cell, or stops the usage of the secondary cell.

Abstract: In this power supplying device used in this power storage system, a power supplying unit charges a battery. A control unit controls the power supplying unit so as to charge the battery in a pulsed manner, in at least a part of a charging period of the battery. The control unit extends a unit on time and a unit off time when charging in the pulsed manner, as the temperature of the battery becomes lower.

Abstract: A deterioration diagnosis unit 21a of an arithmetic unit 20 constituting a remaining performance evaluation system 3 diagnoses the deterioration degree of a secondary battery 5 that has already been used for primary use based on an actual measurement value. The deterioration speed update unit 21b updates the deterioration speed of the secondary battery 5 based on the diagnosis result of the secondary battery 5. The remaining performance estimation unit 21c estimates the remaining performance of the secondary battery 5 after the start of secondary use based on the updated deterioration speed and a usage method at the time of the secondary use of the secondary battery 5.

Abstract: According to the present invention, a state management unit measures or estimates the AC resistance value of a secondary cell at a plurality of time points, estimates a predicted transition of the AC resistance value of the secondary cell on the basis of the AC resistance value at the plurality of time points, and estimates a remaining use period until the AC resistance value of the secondary cell reaches a resistance threshold value corresponding to a time point at which usage of the secondary cell ends. When the remaining use period of the secondary cell becomes shorter than a prescribed period, an operation management unit changes the usage manner of the secondary cell method to a usage manner that has a smaller load on the secondary cell, or stops the usage of the secondary cell.

Abstract: A state estimator 141 estimates, based on at least one of a voltage, a current, and a temperature of a secondary battery 20, a state of the secondary battery 20 including a state of charge (SOC) of the secondary battery 20. A discharge controller 142 discharges, when a state of non-use of the secondary battery 20 lasts for a predetermined period of time, the secondary battery 20 such that an indicator indicating easiness of storage deterioration of the secondary battery 20 to progress decreases in stages. The indicator includes a parameter that depends on an SOC of the secondary battery 20. A value of the indicator and a duration of stay in each stage are set such that a predetermined relationship holds between products in a plurality of stages, each of the products being derived from multiplying the value of the indicator and the duration of stay in each stage.

Abstract: In this power supplying device used in this power storage system, a power supplying unit charges a battery. A control unit controls the power supplying unit so as to charge the battery in a pulsed manner, in at least a part of a charging period of the battery. The control unit extends a unit on time and a unit off time when charging in the pulsed manner, as the temperature of the battery becomes lower.

Abstract: A metallized film composed of a dielectric film, a metal thin film layer and a dielectric layer, the metal thin film layer being formed on at least one surface of the dielectric film, the dielectric layer being formed on the metal thin film layer, and the dielectric layer being composed of acrylic acid ester resin as a main component being composed of dimethylol tricyclodecane diacrylate and monoacrylate containing a heterocycle.

Abstract: A metalized film capacitor includes metalized films, each of which is formed of an insulating film made of dielectric, and a vapor deposited metal electrode formed on an upper surface of the insulating film. An end of the vapor deposited metal electrode extends together with an end of the insulating film, and both the ends are connected to an electrode terminal. The vapor deposited metal electrode of the metalized film includes a center region and a low resistance section that is made of Al—Zn—Mg alloy. The low resistance section is disposed at an end of the electrode and is thicker than the center region. This metalized film capacitor has high humidity resistance.

Abstract: A metallized film capacitor includes first and second metal electrodes, a dielectric film disposed between the first and second metal electrodes, and first and second external electrodes which are connected to the first and second metal electrodes, respectively. At least one of the first metal electrode and the second metal electrode comprises magnesium. The magnesium is distributed unevenly in the at least one of the first metal electrode and the second metal electrode.

Abstract: A metallized film capacitor includes first and second metal electrodes, a dielectric film disposed between the first and second metal electrodes, and first and second external electrodes which are connected to the first and second metal electrodes, respectively. At least one of the first metal electrode and the second metal electrode comprises magnesium. The magnesium is distributed unevenly in the at least one of the first metal electrode and the second metal electrode.

Abstract: A metallized film capacitor includes a dielectric film and two metal vapor-deposition electrodes facing each other across the dielectric film. At least one of the metal vapor-deposition electrodes is made of substantially only aluminum and magnesium. This metallized film capacitor has superior leak current characteristics and moisture resistant performances, and can be used for forming a case mold type capacitor with a small size.

Abstract: A metalized film capacitor includes metalized films, each of which is formed of an insulating film made of dielectric, and a vapor deposited metal electrode formed on an upper surface of the insulating film. An end of the vapor deposited metal electrode extends together with an end of the insulating film, and both the ends are connected to an electrode terminal. The vapor deposited metal electrode of the metalized film includes a center region and a low resistance section that is made of Al—Zn—Mg alloy. The low resistance section is disposed at an end of the electrode and is thicker than the center region. This metalized film capacitor has high humidity resistance.

Abstract: A metallized film composed of a dielectric film, a metal thin film layer and a dielectric layer, the metal thin film layer being formed on at least one surface of the dielectric film, the dielectric layer being formed on the metal thin film layer, and the dielectric layer being composed of acrylic acid ester resin as a main component being composed of dimethylol tricyclodecane diacrylate and monoacrylate containing a heterocycle

Abstract: A metallized film capacitor includes a dielectric film and two metal vapor-deposition electrodes facing each other across the dielectric film. At least one of the metal vapor-deposition electrodes is made of substantially only aluminum and magnesium. This metallized film capacitor has superior leak current characteristics and moisture resistant performances, and can be used for forming a case mold type capacitor with a small size.

Abstract: A metallized film capacitor includes a dielectric film and two metal vapor-deposition electrodes facing each other across the dielectric film. At least one of the metal vapor-deposition electrodes is made of substantially only aluminum and magnesium. This metallized film capacitor has superior leak current characteristics and moisture resistant performances, and can be used for forming a case mold type capacitor with a small size.

Abstract: A metalized film capacitor includes a first dielectric film, a first metal thin-film electrode provided on a surface of the first dielectric film, a second dielectric film provided on the first metal thin-film electrode, and a second metal thin-film electrode provided on the second dielectric film, such that the second metal thin-film electrode faces the first metal thin-film electrode across the second dielectric film. The surface of the first dielectric film has a surface energy ranging from 25 mN/m to 40 mN/m. The metalized film capacitor exhibits high heat resistance and a preferable self-healing effect.

Abstract: A metallized film capacitor includes a dielectric film and two metal vapor-deposition electrodes facing each other across the dielectric film. At least one of the metal vapor-deposition electrodes is made of substantially only aluminum and magnesium. This metallized film capacitor has superior leak current characteristics and moisture resistant performances, and can be used for forming a case mold type capacitor with a small size.

Abstract: A molded capacitor includes a capacitor-element assembly, a package covering the capacitor-element assembly, and a supporter embedded in the package. The capacitor-element assembly includes a capacitor element having a first electrode, and a busbar joined to the electrode of the capacitor element. The busbar has a terminal. The package is made of norbornene-based resin and covers the capacitor-element assembly while exposing the terminal of the busbar. The supporter has first and second end section and is made of heat-conductive insulating material. The first end section contacts the capacitor-element assembly. The second end section is exposed from the package. This molded capacitor has high heat resistance and a small, light-weighted body, and can be manufactured inexpensively.

Abstract: A metalized film capacitor includes a first dielectric film, a first metal thin-film electrode provided on a surface of the first dielectric film, a second dielectric film provided on the first metal thin-film electrode, and a second metal thin-film electrode provided on the second dielectric film, such that the second metal thin-film electrode faces the first metal thin-film electrode across the second dielectric film. The surface of the first dielectric film has a surface energy ranging from 25 mN/m to 40 mN/m. The metalized film capacitor exhibits high heat resistance and a preferable self-healing effect.