Separator film cutter and electrode assembly apparatus including the same
AssigneeSamsung SDI Co., Ltd.
InventorsJae Kyung CHO, Daewook KI, Jiyong LEE, Donghyeok JEONG
Life of this patent
Estimating the term…
Abstract
A separator film cutter includes a melt cutting unit configured to produce a melting portion by locally heating a separator film, with a tensile force being applied to opposite ends of the separator film, to cut the separator film, a driver configured to drive the melt cutting unit to selectively contact the separator film, and a controller configured to control the driver to heat the separator film by causing the separator film and the melt cutting unit to be in contact for a predetermined time.
Claims20
A separator film cutter, comprising:
- a melt cutting unit configured to produce a melting portion by locally heating a separator film, with a tensile force being applied to opposite ends of the separator film, to cut the separator film;
- a driver configured to drive the melt cutting unit to selectively contact the separator film;
- and
- a controller configured to control the driver to heat the separator film by causing the separator film and the melt cutting unit to be in contact for a predetermined time.
An electrode assembly apparatus for a rechargeable battery, the electrode assembly apparatus comprising:
- a separator film supply including at least one feed roller and configured to supply a separator film having a predetermined tensile force;
- a folding guide configured to move in a vertical direction and a horizontal direction in an electrode stacking area and to shape the separator film supplied by the feed roller into folded separator films for electrode stacking;
- an electrode ejector configured to separably fix an electrode assembly in which a plurality of electrodes having different polarities are stacked alternately between the folded separator films, and to extend the separator film connected to the folded separator films to a cutting position;
- and
- a separator film cutter configured to produce a melting portion by heating the separator film at the cutting position to cut the separator film by stretch-breaking of the melting portion caused by the predetermined tensile force.
Dependencies are inferred from the claim text.