ROLLING APPARATUS FOR SECONDARY BATTERY ELECTRODE SHEET, CATHODE ELECTRODE MANUFACTURED THEREBY AND SECONDARY BATTERY
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United States of America Patent
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Issued Date -
Oct 5, 2023
app pub date -
Mar 20, 2023
filing date -
Mar 20, 2023
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Abstract
A rolling apparatus for a secondary battery electrode sheet, may include: a transfer unit transferring an electrode sheet having an electrode mixture layer applied to at least one surface thereof in a first direction; a rolling roll pressing the electrode sheet in a second direction, intersecting the first direction; and a support portion coupled to a rotational axis of the rolling roll to support rotation of the rolling roll, wherein the rolling roll may have a shape in which a central portion thereof in an axial direction protrudes further toward the electrode sheet than both end portions of thereof in an axial direction.
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