Ultrasonic welding system of rechargeable battery and manufacturing method of rechargeable battery using the same
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsJinho Ban, Se Hyun Kim
Life of this patent
Estimating the term…
Abstract
An ultrasonic welding system for a rechargeable battery for mutually welding and bonding includes: a welding apparatus including an anvil and a horn to perform welding and bonding an electrode tab and an electrode lead extending from an electrode assembly of the rechargeable battery through ultrasonic welding by mutually pressing the electrode tab and the electrode lead supplied between the anvil and the horn; and a supply device moves in a vertical or horizontal direction and supplies the electrode lead between the anvil and the horn.
Claims14
An ultrasonic welding system for a rechargeable battery, the ultrasonic welding system comprising:
- a welding apparatus including an anvil and a horn and configured to perform welding and bonding an electrode tab and an electrode lead extending from an electrode assembly of the rechargeable battery through ultrasonic welding by mutually pressing the electrode tab and the electrode lead supplied between the anvil and the horn;
- and
- a supply device configured to be movable in a vertical or horizontal direction and supply the electrode lead between the anvil and the horn,
- wherein:
- the electrode tab is mounted to the anvil and the anvil is configured to support a lower portion of the electrode tab, and
- the horn disposed to face an upper portion of the anvil and configured to press the electrode lead onto the electrode tab to perform the ultrasonic welding,
- wherein:
- the anvil has a lower welding surface configured to contact with an upper surface of the electrode tab, and
- the lower welding surface of the anvil has a predetermined pattern,
- wherein in the anvil,
- a fixing member is mounted at one side corresponding to the lower welding surface and configured to clamp and fix the electrode lead to the upper portion of the electrode tab, and
- wherein:
- the fixing member has a supporting part formed at a position corresponding to a lower molding surface of the anvil, and a moving part configured to be driven in an up and down direction by an operation of a cylinder on the supporting part, and
- the moving part is configured to fix the electrode lead on the supporting part.
An ultrasonic welding system for a rechargeable battery, the ultrasonic welding system comprising:
- a welding apparatus including an anvil and a horn and configured to perform welding and bonding an electrode tab and an electrode lead extending from an electrode assembly of the rechargeable battery through ultrasonic welding by mutually pressing the electrode tab and the electrode lead supplied between the anvil and the horn;
- and
- a supply device configured to be movable in a vertical or horizontal direction and supply the electrode lead between the anvil and the horn,
- wherein the supply device includes:
- a clamping part configured to slide and move along a guide rail formed in the anvil and horn side in a state of clamping the electrode lead;
- a vertical actuator installed at a first side of a main bracket fitted on the guide rail and moving the clamping part mounted to a front end in the vertical direction;
- and
- a horizontal actuator installed at a second side of the main bracket and moving the main bracket along with the clamping part in the horizontal direction.
A manufacturing method for a rechargeable battery using an ultrasonic welding system, where the ultrasonic welding system includes a welding apparatus including an anvil and a horn, and a supply device, the manufacturing method comprising:
- disposing, by the supply device, an electrode tab between the anvil and the horn;
- supplying, by the supply device, an electrode lead on the electrode tab;
- fixing the electrode lead through a fixing member disposed at one side of the anvil;
- and
- lowering the horn with respect to the anvil to perform ultrasonic welding,
- wherein supplying the electrode lead includes:
- supplying the electrode lead between a pair of finger members of a clamping part of the supply device;
- moving the electrode lead on the electrode tab through a horizontal actuator;
- and
- lowering the electrode lead through a vertical actuator to be in contact with the electrode tab.
Dependencies are inferred from the claim text.