ULTRASONIC WELDING DEVICE, MANUFACTURING METHOD OF RECHARGEABLE BATTERY USING THE SAME, AND RECHARGEABLE BATTERY
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United States of America Patent
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Jun 5, 2015
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Aug 11, 2014
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Abstract
An ultrasonic welding device includes a horn coupled to an ultrasonic wave oscillator. The horn performs ultrasonic welding by respectively disposing a negative electrode tab and a positive electrode tab on a negative electrode lead and a positive electrode lead of a rechargeable battery while pressure is applied. The horn includes a negative electrode horn and a positive electrode horn that respectively press the negative electrode tab and the positive electrode tab. The negative and positive electrode horns are integrally provided in a body and have pressing patterns of different shapes.
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