Abstract: A laser drying device for drying an electrode mixture layer, wherein the laser drying device includes a furnace body and a laser light source, the furnace body includes a laser-transmitting protective plate comprising a plurality of laser-transmitting protective plate pieces which transmit laser light, the laser light source irradiates the electrode mixture layer in the furnace body with laser light via the laser-transmitting protective plate, the plurality of laser-transmitting protective plate pieces are aligned in a plane direction, and adjacent laser-transmitting protective plate pieces are joined to each other via a gel substance or arranged with a gap.

Abstract: A laser drying device for drying an electrode mixture layer, wherein the laser drying device includes a laser light source and a furnace body, a laser-transmitting protective plate laminate of the furnace body has a multilayer structure in which a protective plate (upper layer) and a protective plate (lower layer) are stacked, the protective plate (upper layer) and the protective plate (lower layer) are formed by arranging respective protective plate pieces (upper layer) and protective plate pieces (lower layer) in a plane direction, and when the laser-transmitting protective plate laminate is viewed in a stacking direction, boundaries between the plurality of protective plate pieces (upper layer) do not coincide with boundaries between the plurality of protective plate pieces (lower layer).

Abstract: A laser drying device for drying an electrode mixture layer, wherein the laser drying device includes a furnace body, a rectifier plate, a laser light source, and hot air supply equipment, the rectifier plate is arranged in an interior of the furnace body, is arranged between the electrode mixture layer and the laser light source, and is configured so as to transmit laser light, the laser light source irradiates the electrode mixture layer with laser light via the rectifier plate, and the hot air supply equipment supplies hot air between the rectifier plate and the electrode mixture layer.

Abstract: A laser drying device for drying an electrode mixture layer, wherein the laser drying device includes a furnace body, hot air supply equipment, and a laser light source, the furnace body includes a laser-transmitting protective plate, the hot air supply equipment supplies hot air to an interior of the furnace body, and the laser light source is arranged outside the furnace body and irradiates the electrode mixture layer in the interior of the furnace body with a laser via the laser-transmitting protective plate.

Abstract: An electrode active material layer includes an electrode active material and a binder, and is the electrode active material layer in which a predetermined relationship is satisfied by an area proportion of the binder in a fifth peripheral portion, an area proportion of the binder in the first peripheral portion, an area proportion of the binder in a fifth central portion, and an area proportion of the binder in the first central portion.

Abstract: An electrode laminate includes: a current collector layer; and an electrode active material layer laminated on a part of the current collector layer. The current collector layer includes an electric conductor layer, and a first carbon coat layer laminated in at least a part of a region of the electric conductor layer, the electrode active material layer is laminated on at least a part of the first carbon coat layer, and, in an adjacent region being adjacent to the electrode active material layer, the current collector layer does not include the first carbon coat layer, or includes a second carbon coat layer having lower absorptivity of laser light having a wavelength of 970 nm than that of the first carbon coat layer.

Abstract: A power storage cell is a power storage cell that is a secondary battery, and includes a first electrode, a second electrode, and a separator. The second electrode includes a second current collector. The second current collector includes a porous portion having a porous structure. The first electrode includes a first current collector. The first current collector includes a porous portion having a porous structure.

Abstract: The power storage cell includes an electrode assembly and a case that houses the electrode assembly. The electrode assembly includes a first electrode. The first electrode includes an insulating support layer, and a first conductive layer and a second conductive layer that is formed on the insulating support layer. Each of the first conductive layer and the second conductive layer is formed of flaky metal powder.

Abstract: A method for manufacturing a power storage cell includes: a bending step of bending a sheet member; and a disposing step of disposing an inner surface of a bent conductive layer on an insulation support layer. The bending step includes: bringing an inner surface of the insulation support layer into contact with an inner portion; bringing an outer surface of the insulation support layer into contact with an outer portion; and causing an end portion of the insulation support layer to face a connecting portion.

Abstract: A power storage cell includes: an electrode body including a first electrode and a second electrode; a first coupling member and a second coupling member each disposed at a position facing the electrode body; a first tab that electrically connects the first electrode to the first coupling member; and a foam layer. The foam layer is in contact with the first tab, to thereby support the first tab.

Abstract: A lithium-ion secondary battery is a lithium-ion secondary battery including an electrode active material layer, in which the electrode active material layer contains an electrode active material and a binder, the average pore diameter of the electrode active material layer is 1.00 ?m or less, and the porosity of the electrode active material layer is 8.8% or less.

Abstract: A manufacturing apparatus of an electrode sheet includes a transport device configured to transport a coated sheet in a state where a first surface of the coated sheet on a coated part side of a coated sheet having a coated part to which an electrode material is applied on a first surface of a current collector sheet is supported on a second surface of the coated sheet opposite to the first surface, and a laser irradiation device configured to dry the coated part by irradiating the coated sheet transported by the transport device with a laser L, in which the laser irradiation device is disposed on a second surface side of the coated sheet transported by the transport device and includes a laser head configured to irradiate the laser L toward the second surface of the coated sheet.

Abstract: A power storage device includes a cell assembly including a plurality of power storage cells arranged in an X direction and a connection portion electrically connecting the power storage cells adjacent to each other in the X direction. A bent portion is provided between the power storage cells electrically connected by the connection portion.

Abstract: A battery includes: a cell array including a plurality of cells, and a connection part that provides an electric connection between adjacent ones of the cells; and a case housing the cell array. The case includes a case body that the cell array is sandwiched and held in. In a cross-section of the case body, an opening portion that opens in a predefined direction (?Z-direction) is provided.

Abstract: A power storage device includes a first cell connected body and a second cell connected body electrically connected to each other. The first cell connected body includes a plurality of first power storage cells and a first connection portion that electrically connects the first power storage cells to each other. The second cell connected body includes a plurality of second power storage cells and a second connection portion that electrically connects the second power storage cells to each other. The power storage device further includes a holding member that holds the first power storage cell and the second power storage cell that are opposed to each other. At least a portion of the holding member is located between the first power storage cell and the second power storage cell that are opposed to each other.

Abstract: An electricity accumulation apparatus includes: a cell joining body (cell module) including a plurality of electricity accumulation cells; and a case that houses the cell joining body. Hole portions (engagement portions) to and from which hooks are attachable and removable are provided in an end portion of the cell joining body in the X-direction (joining direction) (longitudinal direction).

Abstract: A power storage device includes a power storage module including a plurality of power storage cells, and a case that accommodates the power storage module. Outer surfaces of the case are respectively provided with depressed portions, which indicate cut portions of the case to be cut when the power storage device is disassembled.

Abstract: A power storage device configured to store electric power includes a casing, one or more cell connected bodies, and a base member on which the one or more cell connected bodies are carried. Each of the one or more cell connected bodies includes a plurality of power storage cells and a connection portion that electrically connects the power storage cells to each other. The one or more cell connected bodies and the base member are accommodated in the casing.

Abstract: A power storage device includes a casing and a cell connected body accommodated in the casing. The cell connected body includes a plurality of power storage cells and a connection portion that electrically connects the power storage cells to each other. The power storage device further includes a holding member that holds at least one power storage cell, between an inner surface of the casing and the cell connected body.

Abstract: An electricity storage device (battery) includes a case. The case includes a hinge part that opens and closes the case. The case houses cell strings. The cell strings include a plurality of electricity storage cells (electricity storage cells in one cell string and electricity storage cells in the other cell string) and connection parts that electrically connect the electricity storage cells to one another (connection parts between the adjacent electricity storage cells in either of the cell strings).