Abstract: A vehicle configured to perform external charging for charging an in-vehicle power storage device using electric power supplied from a system power supply outside the vehicle, wherein the vehicle includes a control device and a storage device. The control device is configured to set a command value of a charging current supplied from the system power supply to the power storage device through the charging device during the external charging, and to control the charging current by transmitting the command value to the charging device. The storage device is configured to store a program executed by the control device. The control device calculates an integrated value of the command value when the command value is larger than a threshold value. The control device is configured to execute a reduction process of reducing the command value when the integrated value is large than when the integrated value is small.

Abstract: A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.

Abstract: A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.

Abstract: A method for evaluating an electric power storage device includes causing a short circuit by inserting an electrically conductive probe into a stacked portion in a thickness direction of electrode layers; measuring a penetration depth of the probe after the short circuit occurs; and evaluating the number of electrode layers involved in the short circuit based on the penetration depth. The penetration depth is identified by measuring a length of an adhesion portion in an axial direction of the probe. The adhesion portion is a portion of a surface of the probe to which a constituent material of the stacked portion adheres.

Abstract: An all-solid-state battery includes a solid electrode body including a positive electrode layer, a solid electrolyte layer, and a negative electrode layer, and a laminate film that stores the solid electrode body. The laminate film has a fragile part with respect to a needle-like foreign substance. The strength of the fragile part is lower than the strength of a part of the laminate film other than the fragile part.

Abstract: A cell, which is a non-aqueous electrolyte secondary battery, includes: an electrode assembly including a plurality of sheet-shaped positive electrodes and a plurality of sheet-shaped negative electrodes, the plurality of positive electrodes and the plurality of negative electrodes being alternately stacked with separators interposed therebetween; and a battery case that houses the electrode assembly. The electrode assembly includes: an outer layer including a positive electrode arranged on an outermost side of the electrode assembly, and a separator adjacent to the positive electrode; and an inner layer arranged on an inner side of the outer layer. The outer layer includes a fusing member configured to fuse due to heat generation in the electrode assembly caused by a short circuit in the electrode assembly. The inner layer does not include the fusing member.

Abstract: A cell that is a non-aqueous electrolyte secondary battery includes an electrode body in which a sheet-shaped positive electrode and a sheet-shaped negative electrode are stacked via a separator, and a battery case that accommodates the electrode body and an electrolytic solution. The electrode body includes a predetermined number of outer layers including an outermost layer made up of the separator and the negative electrode disposed on an outermost side of the electrode body, and an inner layer disposed on an inner side than the outer layer. The outer layer includes a negative electrode mixture layer configured to suppress heat generation of the electrode body caused by a short circuit of the electrode body as a heat generation suppressing member. The inner layer does not include the heat generation suppressing member.

Abstract: A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.

Abstract: A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.

Abstract: A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.

Abstract: A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.

Abstract: (a) A power storage device is prepared. (b) An evaluation jig is prepared. The evaluation jig includes an insulating tubular member and a conductive needle-shaped member. (c) A charge level of the power storage device is adjusted. (d) A positive electrode or a negative electrode is selected as a reference electrode. (e) An operation to insert the evaluation jig into the power storage device is performed. (f) The insertion operation is controlled to stop the tubular member when a tip end of the needle-shaped member comes in contact with an electrode different from the reference electrode. (g) Short-circuiting through the needle-shaped member is caused. (h) The power storage device is evaluated based on a state of the short-circuiting power storage device.

Abstract: (a) A power storage device is prepared. (b) An evaluation jig is prepared. The evaluation jig includes an insulating tubular member and a conductive needle-shaped member. (c) A charge level of the power storage device is adjusted. (d) A positive electrode or a negative electrode is selected as a reference electrode. (e) An operation to insert the evaluation jig into the power storage device is performed. (f) The insertion operation is controlled to stop the tubular member when a tip end of the needle-shaped member comes in contact with an electrode different from the reference electrode. (g) Short-circuiting through the needle-shaped member is caused. (h) The power storage device is evaluated based on a state of the short-circuiting power storage device.

Abstract: A method of evaluating a power storage device includes at least [a] to [f] below. [a] A power storage device is prepared. [b] A charge level of the power storage device is adjusted to produce a first potential difference between a positive electrode and a negative electrode. [c] The positive electrode or the negative electrode is selected as a reference electrode. [d] After the charge level is adjusted, an operation to insert a conductive rod-shaped member into a stack portion along a direction of stack of the positive electrode and the negative electrode is performed while a second potential difference between the reference electrode and the rod-shaped member is measured. [e] The rod-shaped member is stopped. [f] The power storage device is evaluated based on a state of the power storage device after the rod-shaped member is stopped.