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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12599986-B2, on 14 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000000730

Ultrasonic horn, secondary battery, and method for manufacturing secondary battery

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Classification
Manufacturing & Assembly Equipment › Joining and Welding
Original source
US-12599986-B2, the United States Patent and Trademark Office, 14 April 2026
Document SHA-256
e87c214573f7f8df7b54a23e5618a58867ba829916ebbb3631990ec427ebda37

Abstract

An ultrasonic horn reduces the likelihood of damaging a plurality of stacked sheets of metal foil when the stacked sheets and a metal member are ultrasonically bonded by applying ultrasonic vibration to the stacked sheets. An ultrasonic horn is used for ultrasonically bonding a plurality of stacked sheets of negative electrode foil and a negative electrode collector plate by applying ultrasonic vibration to the stacked sheets of negative electrode foil. The horn includes a horn body, a first protrusion having a first surface that is a curved surface and protruding from an opposing surface of the horn body facing the anvil toward the anvil, and a second protrusion provided at a center of the first surface of the first protrusion and protruding toward the anvil. The second protrusion includes an end surface that is a planar surface and a second surface connecting the end surface and the first surface.

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Citation

OpenTechnical Publication OT-2026-000000730, “Ultrasonic horn, secondary battery, and method for manufacturing secondary battery,” published September 15, 2026 at 19:03:18 UTC, https://opentechnical.org/p/OT-2026-000000730.

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