Capacitor and method for manufacturing the same
First Claim
1. A capacitor comprising:
- a capacitor element that is a wound element or an element other than the wound element, and that includes electrode bodies each of which is in an anode side and a cathode side, and separators that intervenes between the electrode bodies;
a sealing member that seals an opening of a case member accommodating the capacitor element;
at least one electrode protrusion that protrudes from one of the electrode bodies on an element end-face of the capacitor element,at least one current collector plate that is connected to the at least one electrode protrusion; and
at least one terminal member that is disposed in the sealing member, and is superposed on the at least one current collector plate, a side face part of the at least one terminal member being welded to a side face part of the at least one current collector plate, whereina side face part of the at least one current collector plate is positioned on a side face part of the at least one terminal member, anda welding is carried out by using both of the side face parts of the at least one terminal member and the at least one current collector plate as a common face.
1 Assignment
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Accused Products
Abstract
A capacitor includes a capacitor element that is a wound element or an element other than the wound element, and that includes electrode bodies each of which is in an anode side and a cathode side, and separators that intervenes between the electrode bodies; a sealing member that seals an opening of a case member accommodating the capacitor element; at least one electrode protrusion that protrudes from one of the electrode bodies on an element end-face of the capacitor element, at least one of current collector plate that is connected to the electric protrusion; and at least one terminal member that is disposed in the sealing member, and is superposed on the current collector plate, a side face part of the terminal member being welded to a side face part of the current collector plate.
21 Citations
19 Claims
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1. A capacitor comprising:
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a capacitor element that is a wound element or an element other than the wound element, and that includes electrode bodies each of which is in an anode side and a cathode side, and separators that intervenes between the electrode bodies; a sealing member that seals an opening of a case member accommodating the capacitor element; at least one electrode protrusion that protrudes from one of the electrode bodies on an element end-face of the capacitor element, at least one current collector plate that is connected to the at least one electrode protrusion; and at least one terminal member that is disposed in the sealing member, and is superposed on the at least one current collector plate, a side face part of the at least one terminal member being welded to a side face part of the at least one current collector plate, wherein a side face part of the at least one current collector plate is positioned on a side face part of the at least one terminal member, and a welding is carried out by using both of the side face parts of the at least one terminal member and the at least one current collector plate as a common face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for manufacturing a capacitor, the method comprising:
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making electrode bodies each of which is in an anode side and a cathode side protrude on an element end-face of a capacitor element that includes the electrode bodies and separators intervening between the electrode bodies, and that is a wound element or an element other than the wound element, and forming at least one electrode protrusion on the element end-face; superposing at least one terminal member that is disposed in a sealing member sealing an opening of a case member accommodating the capacitor element, on at least one current collector plate that is connected to the at least one electrode protrusion; and positioning a side face part of the at least one current collector plate on a side face part of the at least one terminal member, wherein a welding is carried out by using both of the side face parts of the at least one terminal member and the at least one current collector plate as a common face. - View Dependent Claims (13, 14, 15, 16)
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17. A method for manufacturing a capacitor, the method comprising:
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making electrode bodies each of which is in an anode side and a cathode side protrude on an element end-face of a capacitor element that includes the electrode bodies and separators intervening between the electrode bodies, and that is a wound element or an element other than the wound element, and forming at least one electrode protrusion on the element end-face; superposing at least one terminal member that is disposed in a sealing member sealing an opening of a case member accommodating the capacitor element, on at least one current collector plate that is connected to the at least one electrode protrusion; providing a cover for the at least one terminal member or the at least one current collector plate, which is connected to the at least one electrode protrusion, and covering contact faces of the at least one terminal member and the at least one current collector plate by the cover; and setting an irradiating position that is irradiated with a laser beam or an electron beam at the cover, and welding a side face part of the at least one current collector plate and a side face part of the at least one terminal member.
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18. A method for manufacturing a capacitor, the method comprising:
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making electrode bodies each of which is in an anode side and a cathode side protrude on an element end-face of a capacitor element that includes the electrode bodies and separators intervening between the electrode bodies, and that is a wound element or an element other than the wound element, and forming electrode protrusions on the element end-face; superposing current collector plates on the electrode protrusions respectively, setting weld lines on the current collector plates in a direction crossing the electrode bodies of the capacitor element, and welding the current collector plates to the electrode protrusions along the weld lines respectively; and superposing at least one terminal member that is disposed in a sealing member sealing an opening of a case member accommodating the capacitor element, on at least one current collector plate that is connected to one of the electrode protrusions, and welding a side face part of the at least one terminal member and a side face part of the at least one current collector plate, wherein weld lines that are adjacent to each other are set on the current collector plates that face each other across an isolation distance, the weld lines that are adjacent to each other in a particular place are sequentially welded, the particular place being across an element center of the capacitor element, and after that, weld lines in a place other than the particular place are sequentially welded, and the current collector plates and the electrode protrusions of the capacitor element are welded along the weld lines that are adjacent to each other in each of the particular place and the place other than the particular place respectively.
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19. A method for manufacturing a capacitor, the method comprising:
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making electrode bodies each of which is in an anode side and a cathode side protrude on an element end-face of a capacitor element that includes the electrode bodies and separators intervening between the electrode bodies, and that is a wound element or an element other than the wound element, and forming at least one electrode protrusion on the element end-face; forming a first connecting face on at least one current collector plate, which is placed on the element end-face of the capacitor element to be connected to the anode side or the cathode side, the first connecting face being arcuate in a side face direction of the capacitor element; forming a second connecting face on at least one terminal member that is disposed in a sealing member sealing an opening of a case member accommodating the capacitor element, the second connecting face being concentric with the first connecting face on the at least one current collector plate; superposing the at least one terminal member on the at least one current collector plate that is connected to the at least one electrode protrusion; placing the first connecting face and the second connecting face side by side, and using the capacitor element or a welding means that irradiates the first connecting face and the second connecting face with a beam to rotationally move the capacitor element or the welding means; and welding the first connecting face and the second connecting face, and connecting the at least one current collector plate and the at least one terminal member.
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Specification