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: 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: A calculation device 20 is linked with an electric power system 1 and optimizes energy utilization efficiency of a grid S1 including a power storage device 15. The calculation device 20 determines the range of a final charge state of a prediction target section of the power storage device 15 on the basis of power demand prediction for the next and following sections, and assesses, through the optimization calculation for the prediction target section, whether or not the final charge state of the section falls within the range.

Abstract: A nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte, the positive electrode containing, as a positive active material, a lithium transition metal composite oxide having an ?-NaFeO2 type crystal structure, a molar ratio of Li to Me, Li/Me of more than 1, Me representing transition metal elements including Ni and Mn or including Ni, Mn, and Co, and a molar ratio of Mn to Me, Mn/Me of 0.40 or more and 0.65 or less, and the nonaqueous electrolyte containing, as an electrolyte salt, LiPF6 and a lithium imide salt.

Abstract: A maintenance method for a power storage system wherein: in a bank in which multiple modules, each comprising multiple lithium-ion battery cells connected to each other, are serially connected, a voltage sensor measures voltage values of the cells; a module containing a cell having the lowest voltage value in the hank is identified; and the capacity of the identified module or of the cell having the lowest voltage value is measured.

Abstract: A storage battery monitoring device according to an aspect of the present invention includes: a plurality of monitoring units attached to a plurality of storage batteries connected in series and/or in parallel; and a management unit capable of wirelessly communicating with the plurality of monitoring units. The management unit sequentially selects identification information about the plurality of monitoring units stored previously, and transmits a connection request message including identification information about a selected monitoring unit to the plurality of monitoring units through wireless communication in order to establish communication with the selected monitoring unit. The management unit further updates identification information about another monitoring unit to identification information about one monitoring unit through the wireless communication when the another monitoring unit is replaced with the one monitoring unit.

Abstract: An estimation device includes: a derivation unit deriving a derivation history based on a current, a voltage and a temperature of a lead-acid battery; a first specifying unit specifying a specific gravity of an electrolyte solution; a second specifying unit specifying at least one of: a first degree of softening of a positive electrode material; a second degree of corrosion of a positive electrode grid; a third degree of sulfation of a negative electrode; and a fourth degree of shrinkage of a negative electrode material based on the specified specific gravity, the derived derivation history, and at least one of respective first-third relationships between the specific gravity, respective first-third histories and the respective first-third degrees, and a fourth relationship between a fourth history and the fourth degree; and an estimation unit configured to estimate a degree of deterioration of the battery based on the specified degree.

Abstract: An estimation device includes: an acquisition unit that acquires a voltage, a current, and a temperature of a lead-acid battery; a first deriving unit that derives a first SOC and a second SOC that are SOCs of a start point and an end point of an estimation period; a second deriving unit that derives a total amount of an overcharge amount in the estimation period; a third deriving unit that derives an actual measurement error based on a difference between the first SOC and the second SOC and the total amount of the overcharge amount; a first specification unit that specifies an estimation error based on the first SOC, the second SOC, and the temperature, and a relationship between the first SOC, the second SOC, and the temperature of the lead-acid battery, and the estimation error; a second specification unit that specifies an abnormality degree of the actual measurement error based on the derived actual measurement error and the specified estimation error; and an estimation unit that estimates generation of

Abstract: A transport structure (1) for a lead-acid battery (10) includes: a packing box (20) in which a lead-acid battery (10) is packed, in which an upper wall portion (23) is formed by two flaps (24) extending from two first side wall portions (21) facing each other of the packing box (20), and in which a distal end portion (26) of at least one of the flaps (24) is bent and inserted into the packing box (20); and an upper buffer body (42A) disposed outside the upper wall portion (23), the upper buffer body (42A) including an upper wall portion (51) facing the upper wall portion (23).

Abstract: An energy storage apparatus includes: an energy storage device including a case in which a joining portion is formed; and a support member which is arranged so as to extend in an elongated shape along the joining portion at a position outside the case and along the joining portion in a side surface portion of the case, and supports the side surface portion.

Abstract: One aspect of the present invention is an energy storage device including: an electrode having a mixture layer containing active material particles; and a separator having an inorganic layer facing the mixture layer, the inorganic layer containing inorganic particles, in which the active material particles have two or more peaks in volume-based particle size distribution, and an average particle diameter of the inorganic particles is 1.2 ?m or less.

Abstract: A method for acquiring information of a battery cell (11) includes a step (S101) of acquiring information pertaining to performance recovery accompanying the suspension of charging/discharging of the battery cell (11). Control pertaining to the battery cell (11) and estimation of a state of the battery cell (11) can be appropriately performed according to a type of battery cell (11).

Abstract: In a method of controlling a flying object 1, from the flying object 1 that includes a flying object propulsion apparatus 16 and an energy storage apparatus 7, 8 having a plurality of energy storage devices 6 and configured to supply electricity to the flying object propulsion apparatus 16, one or a plurality of the energy storage devices 6 are separated.

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 a positive active material for a nonaqueous electrolyte secondary battery which contains a lithium transition metal composite oxide, the lithium transition metal composite oxide having an ?-NaFeO2 structure, containing Ni, Co and Mn as a transition metal (Me), and having an X-ray diffraction pattern attributable to a space group R3-m, in which a ratio of the full width at half maximum of a diffraction peak of the (003) plane to the full width at half maximum of a diffraction peak of the (104) plane, (003)/(104) at a Miller index hkl in X-ray diffraction measurement using a CuK? ray is 0.810 to 0.865, and a crystallite size is 410 ? or more.

Abstract: A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes: a positive electrode including a lithium transition metal composite oxide containing a nickel element and a manganese element; and a negative electrode including solid graphite, the solid graphite has a porosity of 2% or less, and the content of the nickel element with respect to the transition metal element in the lithium transition metal composite oxide is 40 mol % or more.

Abstract: A negative electrode includes a negative active material layer containing a silicon-based negative active material, a rubber-based binder, and a carbon nanotube, wherein a content of the silicon-based negative active material in the negative active material layer is 68 mass % or more, a content of the rubber-based binder in the negative active material layer is 3.0 mass % or more, and a content of the carbon nanotube in the negative active material layer is 0.4×(n2+4n)/(2n+3) mass % or less where n is the number of layers of graphene forming the carbon nanotube.

Abstract: An energy storage device includes a positive electrode terminal, an electrode assembly, and a positive electrode current collector connecting the positive electrode terminal and the electrode assembly, in which the positive electrode current collector has a terminal connecting portion connected to the positive electrode terminal, an electrode connecting portion connected to the electrode assembly in the first direction, and an intermediate portion connecting the terminal connecting portion and the electrode connecting portion, the intermediate portion is arranged at a position overlapping the terminal connecting portion when viewed in the first direction, and the electrode connecting portion and the terminal connecting portion are arranged on one side of the intermediate portion in the first direction.

Abstract: A protection circuit 60 is provided with: switches 61, 62 positioned on a power line PL of an electricity storage element 22 and a load 12; first protection elements 63, 64, 65 connected in parallel with the switches 61, 62 and absorbing surge caused when the switches 61, 62 open and cut off discharge current; and a second protection element 66 connected in parallel with the load and flowing, back to the load, the surge caused when the switches 61, 62 open and cut off the discharge current.