Abstract:
According to an embodiment, an electric storage apparatus includes an electric storage device, an abutment arranged in alignment with the electric storage device, wherein the abutment includes at least three members stacked together, each of the members has a positioning part having a first surface forming a recess and a back surface of the first surface forming a projection, the positioning parts of the members are arranged at positions corresponding to one another, and adjacent members are relatively positioned by inserting a positioning part of one of the adjacent members into a positioning part of the other of the adjacent members.
Abstract:
According to an embodiment, an electric storage apparatus includes an electric storage device, an abutment arranged in alignment with the electric storage device, wherein the abutment includes at least three members stacked together, each of the members has a positioning part having a first surface forming a recess and a back surface of the first surface forming a projection, the positioning parts of the members are arranged at positions corresponding to one another, and adjacent members are relatively positioned by inserting a positioning part of one of the adjacent members into a positioning part of the other of the adjacent members.
Abstract:
A metal foil extending outward from electrode plates stacked in a layered manner is sandwiched between a first metal member provided with damping portions and a second metal member, and ultrasonic vibration is caused to act upon a plurality of sites of action from the first metal member side to join the metal foil to the first and second metal members. Each damping portion includes at least one of a cutaway portion formed by cutting away part of the first metal member, a thick-walled portion formed by partially increasing the plate thickness of the first metal member, and a convex ridge portion formed by bending part of the first metal member into a convex ridge shape.
Abstract:
A metal foil extending outward from electrode plates stacked in a layered manner is sandwiched between a first metal member provided with damping portions and a second metal member, and ultrasonic vibration is caused to act upon a plurality of sites of action from the first metal member side to join the metal foil to the first and second metal members. Each damping portion includes at least one of a cutaway portion formed by cutting away part of the first metal member, a thick-walled portion formed by partially increasing the plate thickness of the first metal member, and a convex ridge portion formed by bending part of the first metal member into a convex ridge shape.
Abstract:
An electric storage device includes an electrode assembly, a case that includes a defining wall and houses the electrode assembly, a sealing member that is arranged on the defining wall, and a conductive member that is electrically connected to the electrode assembly, the conductive member being supported by the sealing member. At least a portion of the defining wall where the sealing member is arranged includes an aluminum-based metallic material. The sealing member includes a material that is softer than the material for the at least a portion of the defining wall where the sealing member is arranged. The sealing member includes polyphenylene sulfide (PPS) resin and an elastomer. The elastomer is contained in an amount of 2% to 20% by weight. The conductive member is crimped in such a manner that the sealing member is pressed against the defining wall.
Abstract:
At least a connector of a current collecting member that is welded to an electrode plate of an electrode assembly is constituted by a rolled material, and the current collecting member and the electrode assembly are bonded to each other by vibration welding.
Abstract:
An electric storage device includes a case, an electrode assembly housed in the case and including a positive electrode plate and a negative electrode plate which are wound together while being isolated from each other, an external terminal arranged outside the case and a current collecting member arranged inside the case to electrically connect the electrode assembly with the external terminal. The current collecting member includes a first portion including a first end portion and a second end portion, and electrically connected to the external terminal, and a second portion extending out of the second end portion of the first portion and electrically connected to the electrode assembly. The second portion includes a base portion including a first end portion and a second end portion, the first end portion of the base portion being connected to the second end portion of the first portion, and a twisted portion.
Abstract:
A metal foil extending outward from an electrode plate is sandwiched between a first metal member and a second metal member, and ultrasonic vibration is caused to act upon a plurality of sites of action from the first metal member side to join the metal foil to the first metal member and the second metal member. The first metal member has a Vickers hardness of at least 40 Hv and not more than 75 Hv.
Abstract:
An electric storage device includes a case, an electrode assembly housed in the case and including a positive electrode plate and a negative electrode plate which are wound together while being isolated from each other, an external terminal arranged outside the case and a current collecting member arranged inside the case to electrically connect the electrode assembly with the external terminal. The current collecting member includes a first portion including a first end portion and a second end portion, and electrically connected to the external terminal, and a second portion extending out of the second end portion of the first portion and electrically connected to the electrode assembly. The second portion includes a base portion including a first end portion and a second end portion, the first end portion of the base portion being connected to the second end portion of the first portion, and a twisted portion.
Abstract:
An electric storage device includes an electrode assembly, a case housing the electrode assembly, a plastic member arranged at an outer surface of the case and including a joining surface facing the outer surface of the case, an external terminal supported by the plastic member and electrically connected to the electrode assembly, a sealing member arranged at the outer surface of the case, the sealing member including a joining surface facing the outer surface of the case, and an auxiliary terminal supported by the sealing member, the auxiliary terminal extending from inside to outside the case, being electrically connected to the electrode assembly, and being electrically connected to the external terminal. The plastic member includes a material having a hardness greater than a hardness of the sealing member.