Patent application number | Description | Published |
20150024264 | ELECTRIC STORAGE DEVICE - Provided is an electric storage device capable of suitably preventing damage to end portions of an electrode assembly due to vibration. A current collector and a backing member are cooperated and connected to each end portion of the electrode assembly in which a positive electrode plate and a negative electrode plate are stacked in layers. The backing member is composed of a base and a skirt. | 01-22-2015 |
20150064545 | ELECTRIC STORAGE APPARATUS, AND METHOD FOR PRODUCING ELECTRIC STORAGE APPARATUS - 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. | 03-05-2015 |
20150064546 | ELECTRIC STORAGE APPARATUS, AND METHOD FOR PRODUCING ELECTRIC STORAGE APPARATUS - According to an embodiment, an electric storage apparatus includes an electric storage device; an insulating member arranged in alignment with the electric storage device; and a sandwiching member made of metal configured to sandwich the insulating member with the electric storage device, wherein one of the insulating member and the sandwiching member includes a recess having an opening on a first surface and having a recess-side large-diameter portion, on the bottom side, with an inner circumference larger than the opening, and the other of the insulating member and the sandwiching member includes a projection-side large-diameter portion, on the distal end side, with an outer circumference larger than the opening, the projection-side large-diameter portion being arranged inside the recess-side large-diameter portion. | 03-05-2015 |
20150118569 | Electric Storage Device - An electric storage device according to the present invention includes: an electrode assembly including positive and negative electrode plates that are insulated from each other, at least one of the electrode plates having an active material layer formed part and an active material layer non-formed part; positive and negative current collectors; and a metal material abutted against the active material layer non-formed part, wherein the metal material includes a curled part in which an edge of the metal material is curved in a direction away from the active material layer non | 04-30-2015 |
20150183052 | MANUFACTURING METHOD OF ELECTRIC STORAGE APPARATUS AND ELECTRIC STORAGE APPARATUS - 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. | 07-02-2015 |
20150214568 | MANUFACTURING METHOD OF ELECTRIC STORAGE APPARATUS, AUXILIARY PLATE FOR ULTRASONIC WELDING, AND ELECTRIC STORAGE APPARATUS - 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. | 07-30-2015 |
20150221926 | ELECTRIC STORAGE DEVICE AND METHOD FOR PRODUCING ELECTRIC STORAGE DEVICE - 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. | 08-06-2015 |