Abstract: A disclosed heater for a sealing process of a secondary battery includes: a sealing bar heating and pressing a pouch foil to be sealed; a plurality of sub-heating unit longitudinally disposed inside the sealing bar to respectively independently supply heat to a plurality of sections separated in the longitudinal direction of the sealing bar; temperature sensing units disposed inside the sealing bar and sensing temperature at positions on the surfaces being in contact with the pouch foil; and a control unit controlling heating temperature of the plurality of sub-heating units on the basis of the temperature sensed by the temperature sensing units.

Abstract: A disclosed sizing roller apparatus for a folding process of a battery cell includes: a table fixing and supporting a battery cell; a base plate disposed on a side of the table; a plurality of sizing rollers disposed on the base plate and each having a rotation axis, which is inclined inward toward a folding portion of the battery cell, to press the folding portion of the battery cell in contact with the folding portion; and a plurality of air spray nozzles disposed on the base plate and spraying air to the plurality of sizing rollers.

Abstract: Disclosed is a prop device for terrace folding of a secondary battery cell, which supports, in a direction facing a folding direction, a terrace portion of a secondary battery cell including an electrode stack configured by stacking electrodes, and the terrace portion formed along an outer periphery of the electrode stack and having a part to be folded in the folding direction toward the electrode stack, the prop device including upper and lower props disposed forward of the electrode stack based on the folding direction and each elongated to have a length from one end to the other end of the secondary battery cell in a direction orthogonal to the folding direction, the upper and lower props being disposed above and below the terrace portion while facing each other and configured to hold the terrace portion.

Abstract: Disclosed is an apparatus for aligning a pouch-type secondary battery, which aligns two opposite sides of an electrode assembly of a pouch-type secondary battery including the electrode assembly and a terrace formed around the electrode assembly with a process proceeding route, the apparatus including an alignment table configured to support the supplied pouch-type secondary battery, and an alignment assembly configured to align the pouch-type secondary battery by pushing two opposite surfaces of the electrode assembly of the pouch-type secondary battery, which is supported by the alignment table, from above and below the terrace so that the two opposite surfaces of the electrode assembly of the pouch-type secondary battery are aligned with the process proceeding route.

Abstract: There is provided a secondary battery cell supply apparatus for a process of folding a secondary battery cell, including: a first device configured to grip a secondary battery cell for a cell folding process received in a tray and raise the secondary battery cell for a cell folding process vertically upward; a second device configured to grip the secondary battery cell for a cell folding process gripped by the first device and transfer the secondary battery cell for a cell folding process in a transverse direction when the first device releases the secondary battery cell for a cell folding process; and a third device configured to grip the secondary battery cell for a cell folding process gripped by the second device, rotate the secondary battery cell for a cell folding process, and move the secondary battery cell for a cell folding process upward and downward.

Abstract: Disclosed is a pouch cutting apparatus for secondary batteries, which cuts remaining portions of a terrace of a pouch-type secondary battery except for folded portions, the pouch cutting apparatus including a frame, a lower cutting unit fixed to a lower side of a front surface of the frame and configured to support a lower portion of the terrace in a longitudinal direction of the terrace so that the remaining portion extends to the outside of a rear surface thereof in a state in which the pouch-type secondary battery to be cut is fixed, and an upper cutting unit disposed at an upper side of the front surface of the frame so as to be movable upward or downward and configured to cut the remaining portion extending to the outside of the rear surface of the lower cutting unit.

Abstract: Disclosed is a hot-press system for folding a surface of a pouch-type secondary battery, the hot-press system including: a first folded surface pressing means configured to hold a main chamber and long-side terraces, which have folded surfaces, of a secondary battery, the first folded surface pressing means being configured to primarily press the folded surfaces while applying heat and pressure to the folded surfaces, and a second folded surface pressing means configured to hold the main chamber and the long-side terraces, which have the folded surfaces, of the secondary battery guided from the first folded surface pressing means, the second folded surface pressing means being configured to secondarily press the folded surfaces while applying heat and pressure to the folded surfaces.

Abstract: Disclosed is a battery cell terrace alignment device including a base part, a table provided straight (in an X-axis direction) in parallel with a process direction, a first front end support part provided on the base part, a second front end support part provided on the base part, a first rear end support part provided on the base part, a second rear end support part provided on the base part, alignment blocks respectively provided in the first front end support part, the second front end support part, the first rear end support part, and the second rear end support part, a close-contact member provided in any one of the first front end support part and the second front end support part or any one of the first and the second rear end support parts, and a man chamber guide member.

Abstract: A disclosed sizing roller apparatus for a folding process of a battery cell includes: a table fixing and supporting a battery cell; a base plate disposed on a side of the table; a plurality of sizing rollers disposed on the base plate and each having a rotation axis, which is inclined inward toward a folding portion of the battery cell, to press the folding portion of the battery cell in contact with the folding portion; and a plurality of air spray nozzles disposed on the base plate and spraying air to the plurality of sizing rollers.

Abstract: Disclosed is a linear reciprocating drive apparatus for a secondary battery manufacturing process, the linear reciprocating drive apparatus including a cylinder having therein a column-shaped accommodation portion and including first and second air vents respectively disposed at one side and the other side of the cylinder and configured to communicate with the accommodation portion, a piston disposed in the cylinder and configured to reciprocates between one end and the other end of the accommodation portion, the piston being configured to divide the accommodation portion into two spaces respectively communicating with the first and second air vents, a driving shaft connected to the piston and extending to the outside of the cylinder, the driving shaft being configured to linearly reciprocate as the piston reciprocates in a longitudinal direction of the accommodation portion, and a shock absorbing unit configured to absorb shock by using a repulsive force between magnetic elements.

Abstract: Disclosed is a degassing device for preparing a secondary battery, the degassing device including a piercing chamber configured to accommodate a first amount of degassing target pouches and having an internal space in which a pressure is selectively controlled to a vacuum pressure or an atmospheric pressure, the piercing chamber including a piercing unit configured to form inner gas discharge paths in the first amount of degassing target pouches, a first buffer chamber having an internal pressure maintained as the vacuum pressure and configured to accommodate the first amount of degassing target pouches unloaded from the piercing chamber, a sealing chamber having an internal pressure maintained as the vacuum pressure and having a sealing unit configured to receive the first amount of degassing target pouches accommodated in the first buffer chamber while sequentially receiving a second amount of degassing target pouches smaller than the first amount of degassing target pouches.

Abstract: There is provided an apparatus for folding a pouch for a secondary battery, the apparatus including: a forming means configured to gradually bend and fold an edge of a pouch-type secondary battery so that the edge has a target cross-sectional shape; a support means configured to support the forming means; and first to fourth gap spacers having various thicknesses, formed in a flat plate shape, and configured to be interposed between the forming means and the support means to align the forming means.

Abstract: Disclosed is a terrace folding system of a secondary battery cell, including a transfer unit which transports a secondary battery cell; and a folding unit which is disposed along the transfer unit and is temporally separated from the transfer unit to fold a terrace of the secondary battery cell.

Abstract: A disclosed apparatus for forming a sealing portion for folding a secondary battery pouch includes: first and second pressing bars disposed to face each other with a sealing portion for folding therebetween to apply pressure for flattening the sealing portion for folding that is defined by the edge of a secondary battery pouch for sealing an electrode assembly accommodated therein; first and second pressing surfaces provided at the first and second pressing bars, respectively, and disposed to face the sealing portion for folding; and a forming protrusion formed on the first pressing surface and configured to form a folding guide line on the sealing portion for folding by pressure applied by the first and second pressing bars.

Abstract: A disclosed heater for a sealing process of a secondary battery includes: a sealing bar heating and pressing a pouch foil to be sealed; a plurality of sub-heating unit longitudinally disposed inside the sealing bar to respectively independently supply heat to a plurality of sections separated in the longitudinal direction of the sealing bar; temperature sensing units disposed inside the sealing bar and sensing temperature at positions on the surfaces being in contact with the pouch foil; and a control unit controlling heating temperature of the plurality of sub-heating units on the basis of the temperature sensed by the temperature sensing units.

Abstract: There is provided a secondary battery cell transfer apparatus for a process of folding a secondary battery cell, including: multiple stations disposed at an equal interval and sequentially disposed in a straight process direction; tables provided in the multiple stations, respectively, and configured to vacuum-grip and support the secondary battery cell from below the secondary battery cell; transfer bars provided in the multiple stations, respectively; vacuum gripping units provided in the table and the transfer bar, respectively, and configured to selectively apply vacuum gripping force to the secondary battery cell; a lifting unit configured to operate a lifting operation of the transfer bar; and a straight transfer drive unit configured to operate a straight reciprocating motion of the transfer bar, in which productivity may be improved by reducing the tact time for a folding process.

Abstract: There is provided a secondary battery cell supply apparatus for a process of folding a secondary battery cell, including: a first device configured to grip a secondary battery cell for a cell folding process received in a tray and raise the secondary battery cell for a cell folding process vertically upward; a second device configured to grip the secondary battery cell for a cell folding process gripped by the first device and transfer the secondary battery cell for a cell folding process in a transverse direction when the first device releases the secondary battery cell for a cell folding process; and a third device configured to grip the secondary battery cell for a cell folding process gripped by the second device, rotate the secondary battery cell for a cell folding process, and move the secondary battery cell for a cell folding process upward and downward.

Abstract: There is provided an apparatus for folding a pouch for a secondary battery, the apparatus including: a forming means configured to gradually bend and fold an edge of a pouch-type secondary battery so that the edge has a target cross-sectional shape; a support means configured to support the forming means; and first to fourth gap spacers having various thicknesses, formed in a flat plate shape, and configured to be interposed between the forming means and the support means to align the forming means.

Abstract: There is provided a secondary battery cell transfer apparatus for a process of folding a secondary battery cell, including: multiple stations disposed at an equal interval and sequentially disposed in a straight process direction; tables provided in the multiple stations, respectively, and configured to vacuum-grip and support the secondary battery cell from below the secondary battery cell; transfer bars provided in the multiple stations, respectively; vacuum gripping units provided in the table and the transfer bar, respectively, and configured to selectively apply vacuum gripping force to the secondary battery cell; a lifting unit configured to operate a lifting operation of the transfer bar; and a straight transfer drive unit configured to operate a straight reciprocating motion of the transfer bar, in which productivity may be improved by reducing the tact time for a folding process.