Pouch shaping apparatus capable of remedying pouch wrinkles

1 . A pouch shaping apparatus comprising:

a support unit configured to allow a laminate sheet to be disposed on an upper surface thereof;

a stripper located above the support unit, the stripper configured to be movable upwards and downwards, the stripper also configured to press and fix an outer periphery of the laminate sheet disposed on the upper surface of the support unit when moved downwards; and

a punch located above the support unit, the punch configured to be movable upwards and downwards in a first direction, the punch also configured to form an electrode assembly receiving portion in the laminate sheet while inserted into a shaping portion located at a center of the support unit when moved downwards, wherein

the support unit comprises an upper support and a support plate, and

the pouch shaping apparatus comprises a core member located between the upper support and the support plate, the core member having a predetermined thickness and configured to support the upper support while spacing the upper support and the support plate apart from each other to create a gap along the first direction between the upper support and the support plate such that the upper support does not move along the first direction but deforms along the first direction away from the core member.

2 . The pouch shaping apparatus according to claim 1 , wherein the upper support comprises:

a shaping portion, as an empty space defined therein, the shaping portion configured to allow the punch to be inserted thereinto such that the electrode assembly receiving portion is formed in the laminate sheet; and

an upper support frame constituting a periphery of the shaping portion.

3 . The pouch shaping apparatus according to claim 2 , wherein the core member comprises a plurality of core members, the plurality of core members disposed spaced apart from each other.

4 . The pouch shaping apparatus according to claim 3 , wherein the core members are disposed at a lower end of the upper support frame adjacent to corner parts of the shaping portion.

5 . The pouch shaping apparatus according to claim 4 , wherein the core members are disposed at positions symmetrical with respect to a center of the upper support frame.

6 . The pouch shaping apparatus according to claim 3 , wherein

the core member comprises, on at least one surface thereof, an adhesive layer, and

the core member is detachably attached to an upper surface of the support plate and/or a lower surface of the upper support frame.

7 . The pouch shaping apparatus according to claim 2 , wherein

a pressing surface of the stripper that faces the laminate sheet faces an upper surface of the upper support frame, and

the stripper comprises a first stripper, and a second stripper provided on the pressing surface and disposed at a lower surface of the first stripper.

8 . The pouch shaping apparatus according to claim 7 , wherein the second stripper comprises an elastic material.

9 . The pouch shaping apparatus according to claim 2 , further comprising bead portions disposed so as to correspond to each other at a pressing surface of the stripper that faces an upper surface of the laminate sheet and an upper surface of the upper support frame that faces a lower surface of the laminate sheet.

10 . The pouch shaping apparatus according to claim 9 , wherein the bead portions are disposed spaced apart from each other.

11 . The pouch shaping apparatus according to claim 9 , wherein the bead portions are disposed at positions adjacent to corner parts of the shaping portion.

12 . The pouch shaping apparatus according to claim 11 , wherein each of the bead portions is formed in a straight shape and is located so as to have an oblique angle with respect to two sides that join each other at a right angle of the upper support frame constituting the shaping portion.

13 . The pouch shaping apparatus according to claim 2 , wherein the core member is located adjacent to a corner of the shaping portion.

14 . The pouch shaping apparatus according to claim 2 , wherein the core member comprises four core members, and

wherein each of the four core members is located adjacent to one of four corners of the shaping portion.

15 . The pouch shaping apparatus according to claim 14 , wherein the four core members are configured to create a plurality of gaps, each gap extending between each pair of the four core members and the upper support and the support plate along a second direction perpendicular to the first direction.

16 . A pouch shaping apparatus comprising:

a support unit configured to allow a laminate sheet to be disposed on an upper surface thereof;

a stripper located above the support unit, the stripper configured to be movable upwards and downwards, the stripper also configured to press and fix an outer periphery of the laminate sheet disposed on the upper surface of the support unit when moved downwards; and

a punch located above the support unit, the punch configured to be movable upwards and downwards, the punch also configured to form an electrode assembly receiving portion in the laminate sheet while inserted into a shaping portion located at a center of the support unit when moved downwards, wherein

the support unit comprises an upper support and a support plate, and

the pouch shaping apparatus comprises at least two core members located between the upper support and the support plate, each of the at least two core members having a predetermined thickness and spaced apart from one another to permit a deformation of a section, between the at least two core members, of the upper support, the deformation being relative to the support plate.

17 . The pouch shaping apparatus according to claim 16 , wherein each of the at least two core members are positioned adjacent to one of four corners of the shaping portion.

18 . The pouch shaping apparatus according to claim 17 , wherein the at least two core members comprise four core members, each of the four core members positioned adjacent to one of the four corners of the shaping portion.