Abstract: In an embodiment, an energy storage apparatus includes a plurality of energy storage devices arranged in a first direction and a pair of insulators extending in the first direction along the plurality of energy storage devices and arranged at an interval from each other in a second direction orthogonal to the first direction, and each of the plurality of energy storage devices has an outer surface facing a third direction orthogonal to the first direction and the second direction, and each of the pair of insulators has a space forming part extending from a position on the outer surface in the first direction and the third direction, and forming a space between a facing surface, on which the energy storage apparatus is installed, and the outer surface.

Abstract: An energy storage apparatus includes an energy storage device and a spacer, in which the spacer has a main body portion, and a third protrusion having a shape that protrudes in a first direction that is a direction from the main body portion to a side surface or a bottom surface of the energy storage device, the protrusion not abutting on a surface of the energy storage device that faces the first direction, and an end edge of the main body portion in the first direction is positioned away in the first direction relative to the surface of the energy storage device that faces the first direction.

Abstract: Provided are a vehicle-use energy storage apparatus, a vehicle-use discharge system, a discharge control method, and a vehicle-use energy storage device each capable of ensuring a sufficient amount of electricity as an amount of electricity used during a normal use time while ensuring an amount of electricity which is reserved as spare electricity, and possessing a sufficient charge-discharge cycle. According to an aspect of the present invention, there is provided a vehicle-use energy storage apparatus including an energy storage device having a negative electrode including a negative active material which contains: a first active material made of a carbon material; and a second active material having a higher oxidation potential than the carbon material and having a higher capacity per volume than the carbon material.

Abstract: A holding member holding an energy storage device is provided with: a first frame including an end member aligned with the energy storage device, and an attachment portion connected to the end member; a second frame including a body aligned with the energy storage device, and an extension extending from the body and extending along the outer surface of the end member; and a plurality of coupling portions that couple the first frame and the second frame in a first direction and disposed in the extension at an interval in a second direction. The attachment portion includes an installation portion that is installed on a fixing surface. The other coupling portion is further apart from a center line extending in the second direction of the end member than a coupling portion closest to the installation portion.

Abstract: A control device 4 includes a control unit 41 that terminates discharge of an energy storage device including a negative electrode that contains Li during charge and releases Li during discharge in a case where a capacity limit amount based on a capacity of discharge and an amount of charge is reached, or in a case where voltage reaches termination voltage larger than lower limit voltage of a voltage range in which charge and discharge can be reversibly repeated.

Abstract: A nonaqueous electrolyte secondary battery disclosed herein includes a positive electrode plate including a positive composite layer, a negative electrode plate including a negative composite layer, and a nonaqueous electrolyte, in which the negative composite layer is composed of a facing portion facing a surface of the positive composite layer, and a non-facing portion that is on the same surface as the facing portion and does not face the surface of the positive composite layer, and the area ratio of the non-facing portion to a combined area of the facing portion and the non-facing portion of the negative composite layer is 7% or more, and the nonaqueous electrolyte contains a fluorinated carbonate and a cyclic sulfone compound.

Abstract: An energy storage apparatus includes an energy storage device and a management unit. The management unit: lowers an SOC of the energy storage device by discharge of the energy storage device; acquires current and voltage of the energy storage device while the SOC of the energy storage device is within a predetermined SOC range in a process of raising the SOC of the energy storage device by charge of the energy storage device; and calculates an internal resistance of the energy storage device based on the acquired current and voltage. The SOC range is a range in which a change in voltage of the energy storage device with respect to a change in SOC of the energy storage device is larger than a range in which a value of the SOC is larger than the SOC range.

Abstract: An information processing device that transmits information on an energy storage device and a power supply-related device in response to a request from the outside or as an event includes, an acquisition unit that acquires information including a state of the energy storage device or the power supply-related device through communication; a storage processing unit that stores the acquired information in a storage medium in association with information that identifies the energy storage device and the power supply-related device, respectively; and a transmission processing unit that transmits display information for collectively displaying the information stored in the storage medium for each system including the energy storage device and/or power supply-related device, or for each place where the energy storage device and/or power supply-related device is installed.

Abstract: An energy storage apparatus includes an energy storage device including an electrode terminal disposed in a first direction, and a bus bar joined to the electrode terminal. The bus bar includes a bus bar body portion including a joint portion joined to the electrode terminal, a first wall portion, and a second wall portion. The first wall portion is erected in the first direction from the bus bar body portion. The second wall portion is disposed so that at least a part of the second wall portion overlaps the bus bar body portion when viewed from the first direction and faces the bus bar body portion.

Abstract: A temperature estimation device includes: a charge-discharge data acquisition unit that acquires charge-discharge data relating to charge-discharge of an energy storage device; an environmental temperature data acquisition unit that acquires temperature data relating to an environmental temperature of a battery board accommodating a plurality of the energy storage devices; and a temperature estimation unit that calculates an ambient temperature of the energy storage device in the battery board using the charge-discharge data and the temperature data, and estimates a temperature of the energy storage device using the calculated ambient temperature and the charge-discharge data.

Abstract: A lead-acid battery includes a positive electrode plate, a negative electrode plate, an electrolyte solution, and a polymer compound, in which the positive electrode plate includes a positive current collector and a positive electrode material, the negative electrode plate includes a negative current collector and a negative electrode material, the Ca content of the positive current collector is 0.13% by mass or less, and the polymer compound has a peak in a range of 3.2 ppm or more and 3.8 ppm or less in a chemical shift of 1H-NMR spectrum, or the polymer compound contains a repeating structure of oxy C2-4 alkylene units.

Abstract: A method for manufacturing an energy storage device includes a swaging step in which a swaged portion is formed by swaging a tip portion, penetrating a positive electrode terminal or a positive electrode current collector and projecting in a predetermined direction from the positive electrode terminal or the positive electrode current collector, of a shaft portion. In the swaging step, the tip portion of the shaft portion is swaged by a punch which includes a pressing surface, the pressing surface including a punch-side first concave portion which is concaved in the predetermined direction and a punch-side second concave portion which is concaved in the predetermined direction more than the punch-side first concave portion at an inner peripheral side of the punch-side first concave portion.

Abstract: A network unit includes: a first communication unit that receives state data from a unit that measures a state of an energy storage device; a second communication unit that performs communication via a specific network; a third communication unit that performs communication via a communication medium different from the specific network; an operation unit including a changeover switch; and a control unit that controls communication by the first to third communication units, in which the control unit transmits the state data from the second communication unit according to a setting in the specific network according to a state of the changeover switch, and in which when the network unit is activated with the changeover switch being in a predetermined state, the control unit performs communication connection with a specific communication device by the third communication unit.

Abstract: An energy storage apparatus includes: a plurality of energy storage devices connected in series; a voltage detection unit that detects voltages of the plurality of energy storage devices; a discharge circuit that discharges the energy storage devices; and a control unit. The energy storage devices include lithium ion cells. The plurality of energy storage devices is chargeable by an external charger for a lead-acid battery, wherein a charge voltage per cell of the external charger for the lead-acid battery is higher than a maximum voltage of the energy storage device, and wherein the control unit discharges only an energy storage device having a highest voltage out of the plurality of energy storage devices when the plurality of energy storage devices is charged by a charger.

Abstract: Provided are a nonaqueous electrolyte capable of providing a nonaqueous electrolyte energy storage device with reduced direct current resistance and an increased capacity retention ratio after charge-discharge cycles, a nonaqueous electrolyte energy storage device including such a nonaqueous electrolyte, and a method for producing such a nonaqueous electrolyte energy storage device. One mode of the present invention is a nonaqueous electrolyte for an energy storage device, containing an additive represented by the following Formula (1) or Formula (2). In Formula (1), R1 to R4 are each independently a hydrogen atom or a group represented by —NRa2, —ORa, —SRa, etc., with the proviso that at least one of R1 to R4 is a group represented by —ORa, —SRa, —COORa, —CORa, —SO2Ra, or —SO3Ra. In Formula (2), R5 to R7 are each independently a hydrogen atom or a group represented by —NRb2, —ORb, or —SRb, with the proviso that at least one of R5 to R7 is a group represented by —SRb.

Abstract: A monitoring device includes: an acquisition unit configured to acquire information regarding whether a learning model is in a first mode or in a second mode, the learning model configured to detect a state of an energy storage device; and a change unit configured to change an operation of a balancer circuit from a predetermined state in a case where the learning model is in the first mode, the balancer circuit configured to balance a voltage of the energy storage device.

Abstract: A negative electrode plate for a lead-acid battery includes a negative electrode current collector and a negative electrode material. The negative electrode material contains an organic expander. The organic expander includes a condensate containing a bisphenol S unit and a phenolsulfonic acid unit.

Abstract: A method for manufacturing an energy storage device according to one aspect of the present invention includes inserting an electrode assembly into a case while causing an insulating member having a sheet-like shape to follow a surface of the electrode assembly in which electrodes are layered. The insulating member includes a first portion corresponding to a first surface of the electrode assembly in a first direction which is a direction of a short side surface of the case and a thickness direction of the electrode assembly, a second portion corresponding to a first end surface which is an end surface of the electrode assembly in a second direction orthogonal to the first direction, a third portion corresponding to a second surface of the electrode assembly in the first direction, and a first extending portion extending from the first portion.

Abstract: A lead-acid battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution, in which the positive electrode plate includes a positive current collector and a positive electrode material, the negative electrode plate includes a negative current collector and a negative electrode material, the positive current collector contains Sn in an amount of 0.95% by mass or more, the negative electrode material contains a polymer compound, and the polymer compound has a peak in a range of 3.2 ppm or more and 3.8 ppm or less in a chemical shift of 1H-NMR spectrum, or the polymer compound contains a repeating structure of oxy C2-4 alkylene units.

Abstract: Based on a voltage of a secondary battery detected by a voltage measurement unit, a residual capacity is acquired from a correlation between the voltage and the residual capacity of the secondary battery stored in a memory, and a state of charge (SOC) which is a ratio of the residual capacity to a reference capacity is obtained. The reference capacity is set to a prescribed amount less than a residual capacity at full charge. Further, an information processing unit determines an abnormality of a module based on a comparison between the SOC and an SOC obtained by another method.