Abstract: A packaging material for a power storage device is formed of a laminated material in which a metal foil layer, a substrate layer provided on an outer surface side of the metal foil layer, and a heat-fusible resin layer provided on an inner surface side of the metal foil layer are laminated. The heat-fusible resin layer is arranged on an inner surface of the packaging material. The heat-fusible resin layer is formed of a polyolefin-based film. A ratio EIT/HIT of an indentation modulus EIT to an indentation hardness HIT of the heat-fusible resin layer measured using a Berkovich indenter is in a range of 21 to 50.

Abstract: A battery packaging material includes a substrate layer, a heat-fusible resin layer, a barrier layer arranged between both the layers, and a substrate protective layer arranged on an outer side of the substrate layer as an outermost layer. The substrate protective layer contains a binder resin, and solid fine particles including soft and hard resin fine particles, and inorganic fine particles. The deformation strength of the soft resin fine particles is 2 MPa or more and less than 20 MPa, that of the hard resin fine particles is 20 to 100 MPa, and the breaking strength of the inorganic fine particles is 500 to 2,000 MPa, measured in accordance with a measurement method of breaking strength and deformation strength defined in JIS Z 8844:2019. The total content of the solid fine particles in the substrate protective layer is 30 to 50 mass %.

Abstract: A packaging material for a power storage device includes a laminated material. The laminated material is composed of a metal foil layer, a substrate layer provided on an outer surface side of the metal foil layer, and a heat-fusible resin layer provided on an inner surface side of the metal foil layer. The heat-fusible resin layer is arranged on an inner surface side of the packaging material. The heat-fusible resin layer is formed of a polyolefin-based film. Martens hardness HMs of the heat-fusible resin layer measured with a Berkovich indenter is in a range of 15 N/mm2 to 25 N/mm2.

Abstract: A battery packaging material is formed of a laminate. The laminate is composed of an outer layer including a substrate layer, a barrier layer as an intermediate layer, and a heat fusible resin layer as an innermost layer. The total thickness of the laminate is 60 ?m to 220 ?m. The barrier layer is formed of a metal foil. The product of a stress value and a thickness of the heat fusible resin layer at a time of 10% stretching is 1,200 Pa·m or more.

Abstract: Provided is an equalization control device that can perform ex-post adjustment of a threshold serving as a reference when equalizing cell voltages of multiple cells. An equalization control device has a voltage detection unit that individually detects each cell voltage in a plurality of cells, an individual discharge unit that individually discharges each cell, a setting unit that sets, in an updatable manner, a threshold as a reference value for comparing with the cell voltage detected by the voltage detection unit, and a control unit that controls the individual discharge unit. The control unit compares each cell voltage detected by the voltage detection unit with the threshold set by the setting unit, and performs control to selectively discharge a discharge target cell having a larger cell voltage than the threshold.

Abstract: Provided is a vehicle power supply device that is capable of executing non-synchronous rectification control and synchronous rectification control while switching therebetween and can suppress, during switching from the non-synchronous rectification control to the synchronous rectification control, an output voltage value from significantly deviating from a target voltage value. If a determination unit determines, during the execution of the non-synchronous rectification control, that a current-increasing state arises, a driving unit performs switching to the synchronous rectification control in which a PWM signal with a duty cycle of a fixed value is supplied to a first switch unit, and then performs the synchronous rectification control in which a PWM signal with a duty cycle that is calculated by a feedback operation unit based on the target output voltage value and the detection result of the detecting unit is supplied to the first switch unit.

Abstract: Provided is a vehicle power supply device that is capable of executing non-synchronous rectification control and synchronous rectification control while switching therebetween and can suppress, during switching from the non-synchronous rectification control to the synchronous rectification control, an output voltage value from significantly deviating from a target voltage value. If a determination unit determines, during the execution of the non-synchronous rectification control, that a current-increasing state arises, a driving unit performs switching to the synchronous rectification control in which a PWM signal with a duty cycle of a fixed value is supplied to a first switch unit, and then performs the synchronous rectification control in which a PWM signal with a duty cycle that is calculated by a feedback operation unit based on the target output voltage value and the detection result of the detecting unit is supplied to the first switch unit.

Abstract: Provided is an equalization control device that can perform ex-post adjustment of a threshold serving as a reference when equalizing cell voltages of multiple cells. An equalization control device has a voltage detection unit that individually detects each cell voltage in a plurality of cells, an individual discharge unit that individually discharges each cell, a setting unit that sets, in an updatable manner, a threshold as a reference value for comparing with the cell voltage detected by the voltage detection unit, and a control unit that controls the individual discharge unit. The control unit compares each cell voltage detected by the voltage detection unit with the threshold set by the setting unit, and performs control to selectively discharge a discharge target cell having a larger cell voltage than the threshold.