Pouch forming apparatus and pouch forming method using the same

Abstract

The present invention relates to a pouch forming apparatus and a pouch forming method using the same. A pouch forming apparatus related to one embodiment of the present invention includes a cooling unit for cooling a pouch sheet, and a forming unit to which the pouch sheet that has passed through the cooling unit is supplied and which forms a receiving portion in the pouch sheet in which an electrode assembly is received.

Claims

1. A cooling unit for cooling the pouch sheet; and The pouch sheet that has passed through the cooling unit is supplied, and the forming unit is used to form a housing portion in which the electrode assembly is housed within the pouch sheet. The system further includes a control unit that controls the cooling unit and the forming unit, The control unit controls the forming unit based on the cooling temperature of the cooling unit in the pouch forming apparatus.

2. The cooling unit is A cooling chamber having a space through which a pouch sheet passes, and The pouch forming apparatus according to claim 1, further comprising a temperature control unit for adjusting the temperature of the space within the cooling chamber.

3. The pouch forming apparatus according to claim 2, wherein the temperature control unit is provided to supply compressed air into the space.

4. The pouch forming apparatus according to claim 2, wherein the temperature control unit is provided to maintain the temperature of the space below room temperature.

5. The pouch forming apparatus according to claim 4, wherein the temperature control unit maintains the temperature of the space at 5°C to 10°C.

6. The forming unit is a die having a mounting surface on which a pouch sheet supplied from a cooling unit is attached, and forming grooves formed on the mounting surface; A punch for press-fitting a portion of the pouch sheet into the forming groove to form the aforementioned housing; and The pouch forming apparatus according to claim 1, further comprising a stripper for applying pressure to the edge region of a pouch sheet mounted on the die.

7. The pouch forming apparatus according to claim 6, wherein the die is provided so as to be movable so that its mounting surface moves closer to or further away from the punch.

8. The pouch forming apparatus according to claim 7, wherein when the die moves toward the punch, the punch is inserted into the forming groove.

9. The pouch forming apparatus according to claim 8, wherein the mounting surface of the die and the stripper maintain contact when the punch is inserted into the forming groove.

10. The pouch forming apparatus according to claim 6, wherein the die includes a forming groove and one or more discharge passages fluidly connected to it.

11. The pouch forming apparatus according to claim 10, wherein the discharge passage is provided to discharge air from inside the forming groove to the outside of the die when the punch is inserted into the forming groove.

12. A pouch forming method using the pouch forming apparatus described in any one of claims 1 to 11, The step of cooling the pouch sheet as it passes through the cooling unit; and A pouch forming method comprising the step of forming a housing portion in a pouch sheet that has passed through a cooling unit, in which an electrode assembly is housed.

13. The pouch forming method according to claim 12, wherein the temperature of the cooling unit is kept lower than room temperature.

14. The pouch forming method according to claim 13, wherein the temperature of the cooling unit is maintained at 5°C to 10°C.

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