Abstract: According to one embodiment of the present disclosure, a method for detecting an abnormality in a storage battery includes: calculating, based on process data obtained during a manufacturing process, an initial restraining deformation amount of a target prismatic cell in a stack of prismatic cells; calculating, based on the initial restraining deformation amount and usage history data, a deformation amount of the bottom surface of the case of the target prismatic cell; and outputting a first alert in response to the deformation amount of the bottom surface of the case exceeding a predetermined first threshold.

Abstract: A power supply device includes a secondary cell, a detection device, a storage device, and a control device. The secondary cell includes an electrolyte solution. The detection device detects the voltage and temperature of the secondary cell. The storage device stores first information and second information. The first information indicates the relationship among the voltage, the temperature, and the amount of decrease in the electrolyte solution during energization of the secondary cell. The second information indicates the relationship among the voltage, the temperature, and the amount of decrease in the electrolyte solution during storage of the secondary cell. The control device calculates a first index indicating the amount of decrease in the electrolyte solution.

Abstract: A diagnosis system includes a storage device, an internal pressure transition estimation section, an amount-of-damage calculation section, and a durable-period prediction section. The storage device stores second history information. The internal pressure transition estimation section estimates the transition of the internal pressure of a battery. The amount-of-damage calculation section calculates the amount of damage to a housing of the battery by the internal pressure in accordance with a result of the estimation by the internal pressure transition estimation section after the end of use of the battery in the vehicle. The durable-period prediction section predicts the length of the durable period of the battery at the time of reuse in accordance with usage condition information and the amount of damage. The usage condition information indicates a usage condition of the battery imposed when the battery is reused after the end of use.

Abstract: A battery ECU calculates a gas generation amount generated in a case, and calculates a gas permeation amount corresponding to an amount of leakage of the gas out of the case. The battery ECU calculates an internal gas amount that is a gas amount inside the battery, by subtracting the gas permeation amount from the gas generation amount. Further, the battery ECU calculates an electrolyte solution permeation amount corresponding to an amount of leakage of an electrolyte solution out of the case, and calculates an internal void volume that is a void volume inside the battery, by adding the electrolyte solution permeation amount and an initial void volume. Then, the battery ECU calculates a battery internal pressure that is a pressure in the case, based on the internal gas amount and the internal void volume.

Abstract: A power storage module includes: a first power storage cell and a second power storage cell placed to be adjacent to each other, the first power storage cell and the second power storage cell each including a housing having a top face and external terminals provided on the top face; and a spacer having an insulating property and placed between the housings adjacent to each other. The spacer includes a discharge portion via which liquid reaching the spacer from above is discharged to outside the spacer.

Abstract: A power storage device includes a plurality of power storage cells. An end surface portion of a case has an aspect ratio of 1.4 or more. At least a part of a first region between a lower end of a sealing part projected image and an upper end of a principal surface region projected image receives a pressure of a first surface pressure. At least a part of a second region between the upper end of the principal surface region projected image and a lower end of the principal surface region projected image receives a pressure of a second surface pressure. The first surface pressure is higher than the second surface pressure and is 1.5 MPa or more and 3.5 MPa or less. A height of at least a part of the first region receiving the pressure of the first surface pressure is 1 mm or more.

Abstract: A battery module includes: a plurality of battery cells each of which has a flat shape; a plurality of elastic spacers laminated and disposed alternately with the battery cells; and a restraining member configured to restrain the battery cells and the elastic spacers in a laminating direction of the battery cells. Each of the elastic spacers has a sheet portion that extends between two adjacent battery cells and a plurality of protrusions that protrudes from one surface of the sheet portion. The protrusions are disposed at an equal interval along at least a first direction. When an interval between the protrusions in the first direction is x and a dimension of each protrusion in the first direction is y, relationships of 4 mm?y?18 mm, y?4/9x?10/3, and y?x?2 are satisfied.

Abstract: The travel route presentation system according to the present disclosure includes: an acquisition unit that acquires predetermined information about a user; an estimation unit that estimates a health state of the user from the predetermined information about the user; a selection unit that selects at least one travel route from a current location of the vehicle to a destination based on the estimated result; and a presentation unit that presents the selected travel route. Accordingly, the travel route presentation system according to the present disclosure can propose comfortable driving by the user.

Abstract: When electrified vehicle is a vehicle capable of externally charging electric power, the point granting device imparts a point in accordance with a ratio of the amount of electric power obtained from renewable energy to the amount of electric power charged. In addition, when electrified vehicle is a vehicle traveling using electric power, the point granting device imparts a point in response to the actual electric power cost achieved by the traveling being equal to or higher than the modeled electric power cost.

Abstract: When electrified vehicle is a vehicle capable of externally charging electric power, the point granting device imparts a point in accordance with a ratio of the amount of electric power obtained from renewable energy to the amount of electric power charged. In addition, when electrified vehicle is a vehicle traveling using electric power, the point granting device imparts a point in response to the actual electric power cost achieved by the traveling being equal to or higher than the modeled electric power cost.

Abstract: A power supply device includes a secondary cell, a detection device, a storage device, and a control device. The secondary cell includes an electrolyte solution. The detection device detects the voltage and temperature of the secondary cell. The storage device stores first information and second information. The first information indicates the relationship among the voltage, the temperature, and the amount of decrease in the electrolyte solution during energization of the secondary cell. The second information indicates the relationship among the voltage, the temperature, and the amount of decrease in the electrolyte solution during storage of the secondary cell. The control device calculates a first index indicating the amount of decrease in the electrolyte solution.

Abstract: A battery module includes: a plurality of battery cells each of which has a flat shape; a plurality of elastic spacers laminated and disposed alternately with the battery cells; and a restraining member configured to restrain the battery cells and the elastic spacers in a laminating direction of the battery cells. Each of the elastic spacers has a sheet portion that extends between two adjacent battery cells and a plurality of protrusions that protrudes from one surface of the sheet portion. The protrusions are disposed at an equal interval along at least a first direction. When an interval between the protrusions in the first direction is x and a dimension of each protrusion in the first direction is y, relationships of 4 mm?y?18 mm, y?4/9x?10/3, and y?x?2 are satisfied.

Abstract: A power storage module includes: a first power storage cell and a second power storage cell placed to be adjacent to each other, the first power storage cell and the second power storage cell each including a housing having a top face and external terminals provided on the top face; and a spacer having an insulating property and placed between the housings adjacent to each other. The spacer includes a discharge portion via which liquid reaching the spacer from above is discharged to outside the spacer.

Abstract: A power storage device includes a plurality of power storage cells. An end surface portion of a case has an aspect ratio of 1.4 or more. At least a part of a first region between a lower end of a sealing part projected image and an upper end of a principal surface region projected image receives a pressure of a first surface pressure. At least a part of a second region between the upper end of the principal surface region projected image and a lower end of the principal surface region projected image receives a pressure of a second surface pressure. The first surface pressure is higher than the second surface pressure and is 1.5 MPa or more and 3.5 MPa or less. A height of at least a part of the first region receiving the pressure of the first surface pressure is 1 mm or more.

Abstract: A battery module includes a pair of secondary batteries disposed adjacent to each other and a spacer disposed between the secondary batteries. Each of the secondary batteries includes a plurality of electrodes each of which has a rectangular shape and is disposed to face each other, a case configured to house the electrodes, the case having a rectangular parallelepiped shape, and an electrolyte in the case. The spacer is made of an elastic body. An aspect ratio of each of the electrodes is 10 or less, and a spring constant of the spacer is 0.03 MPa/mm or more and 5.4 MPa/mm or less.