DEVICE COMPRISING CLEANING ROLL AND FOR CLEANING PROTECTIVE FILM FOR PREPARING BATTERY CELL
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United States of America Patent
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Issued Date -
Jan 3, 2019
app pub date -
Nov 29, 2017
filing date -
Nov 29, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
The present disclosure provides a device for cleaning a protective film to be attached to an outer surface of a laminate during a lamination process of heating and pressing the laminate of electrodes and a separator to produce an electrode assembly of a battery cell, including a feed roll configured to supply the protective film, at least one guide roll configured to guide a progress of the protective film supplied from the feed roll, a cleaning roll located between the feed roll and a winding roll and configured to remove foreign substances remaining on the protective film supplied from the feed roll, and the winding roll configured to wind the protective film from which foreign substances have been removed by the cleaning roll, wherein a nano thin film is formed on an outer surface of the cleaning roll to adsorb and remove the foreign substances remaining on the protective film.
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