Abstract: An ultrasonic joining horn disclosed herein can generate ultrasonic vibration in a predetermined vibration direction and includes a base portion, a stand portion that rises from an upper surface of the base portion, and a pressure contact portion formed of a plurality of protrusions that protrude from an upper surface of the stand portion. Each of the protrusions is formed into a pyramid shape or a truncated pyramid shape, the protrusions are arrayed, and when viewed from top, at least a portion of a peripheral edge of a portion in which the protrusions are arrayed has a zigzag shape. The zigzag portion is formed along at least one of the vibration direction and a perpendicular direction to the vibration direction. The upper surface of the base portion has an exposed surface on which the stand portion is not formed.

Abstract: Provided is an electrode sheet manufacturing apparatus that forms an electrode sheet by cutting a sheet stack including an electrode composite material layer and a separator provided on the electrode composite material layer. The electrode sheet manufacturing apparatus includes a laser irradiation device that irradiates the sheet stack with a first laser beam having a wavelength to be absorbed by the separator and a second laser beam having a wavelength to be absorbed by the electrode composite material layer, and a controller that controls driving of the laser irradiation device. The controller moves an irradiation position of the first laser beam relative to the sheet stack and moves an irradiation position of the second laser beam so as to follow a track of the irradiation position of the first laser beam.

Abstract: A terminal component includes a first metal and a second metal overlapped on the first metal, the first metal having a part to be connected to an internal terminal, and the second metal having a part to be exposed to the outside of a battery case. At an interface where the first metal and the second metal are overlapped, one of the first metal and the second metal has a protrusion having a flat top portion. The other metal is joined to the top portion. A cross section of the protrusion orthogonal to a projection direction of the protrusion is set such that fusing occurs when a current equal to or higher than a predetermined current value flows between the first metal and the second metal.

Abstract: Provided is a tobacco sheet having high swelling property for a non-combustion heating type flavor inhaler. The tobacco sheet for a non-combustion heating type flavor inhaler includes tobacco powder having a cumulative 90% particle size (D90) of 200 ?m or more in a volume-based particle size distribution measured by a dry laser diffraction method.

Abstract: An ultrasonic joining horn disclosed herein can generate ultrasonic vibration in a predetermined vibration direction and includes a base portion, a stand portion that rises from an upper surface of the base portion, and a pressure contact portion formed of a plurality of protrusions that protrude from an upper surface of the stand portion. Each of the protrusions is formed into a pyramid shape or a truncated pyramid shape, the protrusions are arrayed, and when viewed from top, at least a portion of a peripheral edge of a portion in which the protrusions are arrayed has a zigzag shape. The zigzag portion is formed along at least one of the vibration direction and a perpendicular direction to the vibration direction. The upper surface of the base portion has an exposed surface on which the stand portion is not formed.

Abstract: The secondary battery includes: a square battery case; and a wound electrode body accommodated in the battery case. The wound electrode body has a positive electrode sheet and a negative electrode sheet overlapping with each other to be wound about a winding axis to have a rectangular shape when seen from a winding axis direction. The wound electrode body has corner parts positioned at four corners of the wound electrode body when seen from the winding axis direction. The positive electrode sheet has a positive electrode collector and a positive electrode active material layer. The negative electrode sheet has a negative electrode collector and a negative electrode active material layer. Folding grooves are formed along the winding axis direction at portions of the positive electrode active material layer or portions of the negative electrode active material layer that are positioned at the corner parts.

Abstract: A secondary battery terminal is provided which is constituted by dissimilar metals and which has a structure capable of preventing liquid from penetrating into a boundary between the dissimilar metals of the terminal. The terminal disclosed herein includes a plate-like metallic first member and a second member which is metallically joined to one plate surface of the first member and which is constituted by a metal that differs from a metal constituting the first member. A first stepped portion constituted by an end of the second member, which is more protruded than the one plate surface of the first member, is formed at a boundary between the plate surface and the metallically-joined second member and, further, a second stepped portion which protrudes from the one plate surface of the first member is formed on the plate surface.

Abstract: An ultrasonic joining horn disclosed herein can generate ultrasonic vibration in a predetermined vibration direction and includes a base portion, a stand portion that rises from an upper surface of the base portion, and a pressure contact portion formed of a plurality of protrusions that protrude from an upper surface of the stand portion. Each of the protrusions is formed into a pyramid shape or a truncated pyramid shape, the protrusions are arrayed, and when viewed from top, at least a portion of a peripheral edge of a portion in which the protrusions are arrayed has a zigzag shape. The zigzag portion is formed along at least one of the vibration direction and a perpendicular direction to the vibration direction. The upper surface of the base portion has an exposed surface on which the stand portion is not formed.

Abstract: This disclosure provides a terminal component that can reduce thermal deterioration due to beam irradiation to a metal joining portion. A terminal component disclosed herein includes a first member formed of a metal and a plate-like second member formed of a metal, and a metal joining portion joined by metal joining is formed in a boundary surface where the first member and the second member are stacked. On a surface of the second member in an opposite side to the boundary surface, a raised portion raised from the surface is formed in a peripheral portion close to the metal joining portion.

Abstract: A secondary battery includes an electrode body, a battery case, and an electrode terminal. The electrode body has a foil collecting portion. The electrode terminal corresponding to at least one of a positive electrode and a negative electrode is electrically connected to the foil collecting portion via a current collector terminal. The current collector terminal is joined to the foil collecting portion. The foil collecting portion has a joining mark composed of a plurality of recesses on a surface on an opposite side of the foil collecting portion from a surface joined to the current collector terminal. The joining mark has two corners on an inner side of the electrode body and two corners on an outer side of the electrode body, and only the two corners on the inner side of the electrode body have a chamfered shape.

Abstract: The terminal component disclosed herein is a terminal component for use in a terminal for secondary batteries. The terminal component includes a first metal and a second metal having a recess. The first metal includes a shall having a pair of flat surfaces and a fitting portion formed at one end of the shaft in the major axis direction. At the boundary between the first metal and the second metal, a joining portion joined by ultrasonic, joining and a crimping portion where the fitting portion of the first metal is fitted into the recess of the second metal are formed. A gap is formed between the recess and the fitting portion in the facing direction in which the gap faces the flat surfaces in plan view.

Abstract: A terminal part with enhanced joint strength of a joint portion between different metals is provided. A terminal part disclosed here includes a first metal and a second metal. A joint interface between the first metal and the second metal includes a first layer disposed at the second metal and containing a first intermetallic compound and a second layer disposed closer to the first metal than the first layer and containing a second intermetallic compound. In the second layer, the second intermetallic compound has grown in a dendritic pattern, and the first metal is present in a gap of the dendritic second intermetallic compound.

Abstract: A horn disclosed herein is a horn that transmits ultrasonic vibration to workpiece to be joined and includes a base portion and a tip end portion that protrudes from the base portion and is pressed against the workpiece. At least a portion of the tip end portion is a frame-like raised portion formed into substantially a frame shape. The frame-like raised portion may be formed into a rectangular shape. As a portion of the tip end portion, an inner raised portion may be provided inside the frame-like raised portion.

Abstract: A terminal component disclosed here includes a first metal and a second metal on which the first metal is overlaid. A joint portion joined by metal diffusion is formed at an interface between the first metal and the second metal. The second metal includes an insulating portion subjected to an insulating process in a portion except for the joint portion.

Abstract: A terminal component disclosed herein includes a first metal and a second metal stacked on the first metal. On the first metal, nickel is plated at least on a boundary surface with the second metal. A joining portion joined by diffusion of the metals is formed in a portion of a boundary between the first metal and the second metal.

Abstract: A battery manufacturing method includes: winding positive and negative electrode plates and a separator to form a wound electrode assembly; cutting unwound portions of the positive and negative electrode plates and the separator such that the separator constitutes an outermost layer of the wound electrode assembly when the winding is completed; further winding around the wound electrode assembly the cut unwound portions; fixing a part of a terminal end of the separator in a lateral direction to the wound electrode assembly; and performing heat welding on parts of both lateral ends of an outermost portion of the separator in the wound electrode assembly, which are located above an electrode active material-uncoated portion of the positive or negative electrode plate to fix the lateral ends to the wound electrode assembly.

Abstract: A technology is provided which suppresses the deterioration of the joint part between the electrode terminal and the bus bar due to an external load. An assembled battery herein disclosed includes a plurality of single cells, and a bus bar. The plurality of single cells each include an electrode body, a battery case, and an electrode terminal. The electrode terminal in at least one single cell among the plurality of single cells includes a first member having one end arranged outside the battery case, and the other end arranged inside the battery case, and a second member arranged at the outer surface of the battery case, and mounted at the end of the first member. Herein, a flexible part protruding toward the bus bar is formed at the surface of the second member, and the electrode terminal is joined with the bus bar at the flexible part.

Abstract: A terminal component includes a first metal and a second metal overlapped on the first metal. A boundary of the first metal and the second metal includes a press-fit portion, a joined portion, and a gap. The press-fit portion is a portion in which one of the first metal and the second metal is press-fitted to the other one. The joined portion is a portion disposed at a different location from the press-fit portion, in which the first metal and the second metal are overlapped and joined together. The gap is formed around the joined portion. The terminal component includes a gap around the joined portion.

Abstract: A terminal component includes a first metal and a second metal overlapped on the first metal. The first metal is provided with a recess where an inside is wider than an opening at a portion overlapped with the second metal. A part of the second metal has entered the recess of the first metal, and the second metal has a portion that has entered a portion of the recess of the first metal where the inside is wider than the opening, and a recess on a surface opposite to the portion that has entered the recess of the first metal. At least a part of the portion of the second metal that has entered the recess of the first metal is metal-joined to the inner surface of the recess of the first metal.

Abstract: A technology is provided which improves the conductivity at the electrode terminal in a secondary battery. The technology herein disclosed provides an electrode terminal of a secondary battery. The electrode terminal includes a first member made of a metal, and a second member made of a metal. The first member has a connection part to be connected to the second member. The second member has an insertion hole for allowing the connection part of the first member to be inserted thereinto. At the interface between the first member and the second member in the inside of the insertion hole, the first member and the second member are welded to each other.