Pouch-shaped battery sealing apparatus including position adjustment unit and pouch-shaped battery sealing method using the same

1 . A pouch-shaped battery sealing apparatus comprising:

a sealing block comprising a sealing groove having a shape that is complimentary to a shape of a section of an electrode lead; and

a position adjustment unit configured to adjust a position of the electrode lead relative to the sealing groove, the position adjustment unit including a fixing unit configured to fix a pouch-shaped battery case having an electrode assembly comprising the electrode lead received therein and first, second, and third moving units,

wherein the first moving unit, the second moving unit, and the third moving unit have horizontal moving portion, a vertical moving portion, and a height moving portion configured to respectively move the electrode lead relative to the sealing groove in an x-axis direction, a y-axis direction, and a z-axis direction based on xyz orthogonal coordinates,

wherein the sealing apparatus is configured so that movement of each of the first moving unit, the second moving unit, and the third moving unit is adjusted by screw rotation, and

wherein the position adjustment unit comprises first, second, and third position measurement units that include a horizontal measurement portion, a vertical measurement portion, and a height measurement portion configured respectively to measure x-axis, y-axis, and z-axis displacements of the fixing unit.

2 . The pouch-shaped battery sealing apparatus according to claim 1 , wherein the a position measurement unit is configured to measure a displacement of the moving unit.

3 . The pouch-shaped battery sealing apparatus according to claim 2 , wherein the position measurement unit comprises a horizontal measurement portion and a vertical measurement portion configured respectively to measure the x-axis and the y-axis displacements of the fixing unit.

4 . The pouch-shaped battery sealing apparatus according to claim 3 , wherein the position measurement unit further comprises a height measurement portion configured to measure the z-axis displacement of the fixing unit.

5 . The pouch-shaped battery sealing apparatus according to claim 2 , wherein the moving unit is configured to be operated by a control device, or

movement of the moving unit is configured to adjusted by rotation of a screw.

6 . The pouch-shaped battery sealing apparatus according to claim 2 , wherein the position measurement unit is a laser distance measurer or a micrometer.

7 . The pouch-shaped battery sealing apparatus according to claim 2 , wherein the fixing unit comprises:

a partition wall configured to support at least one side surface of the pouch-shaped battery case; and/or

a pressing member configured to fix an upper surface of the pouch-shaped battery case in a lying state by pressing.

8 . The pouch-shaped battery sealing apparatus according to claim 1 , wherein the sealing block comprises an upper sealing block and a lower sealing block,

the sealing groove extends into at least one of the upper sealing block or the lower sealing block, and

the sealing groove comprises a first groove configured to accommodate therein a thickness of an insulative film and a second groove configured to accommodate therein the thicknesses of the insulative film and a thickness of the electrode lead.

9 . The pouch-shaped battery sealing apparatus according to claim 1 , wherein the position adjustment unit is configured to adjust the position of the electrode lead within the sealing groove.

10 . The pouch-shaped battery sealing apparatus according to claim 2 , further comprising a delivery unit configured to move an entirety of the position adjustment unit such that a portion to be sealed of the pouch-shaped battery case is disposed within the sealing block.

11 . A pouch-shaped battery sealing method comprising:

disposing a pouch-shaped battery case having an electrode assembly comprising an electrode lead received therein on the pouch-shaped battery sealing apparatus according to claim 1 ;

adjusting positions of the electrode lead and an insulative film of the electrode assembly relative to the sealing groove using the position adjustment unit; and

sealing the pouch-shaped battery case.

12 . The pouch-shaped battery sealing method according to claim 11 , wherein, during the adjusting, the electrode lead and the insulative film are disposed in the position adjustment unit.

13 . The pouch-shaped battery sealing method according to claim 11 , wherein the sealing is performed after the electrode assembly is moved to the sealing block.

14 . The pouch-shaped battery sealing method according to claim 11 , further comprising, after the sealing, checking a sealing force of the sealed pouch-shaped battery case.

15 . The pouch-shaped battery sealing method according to claim 14 , wherein, during the checking, a filling length of an adhesive in an empty space when the electrode lead and the insulative film are adhered to each other is checked.

16 . The pouch-shaped battery sealing method according to claim 15 , wherein the checking is performed using a transmission light.

17 . The pouch-shaped battery sealing apparatus according to claim 2 , wherein the moving unit is configured to position a horizontal partition wall and a vertical partition wall of the electrode lead, and the fixing unit is configured to fit the electrode lead to a horizontal partition wall and a vertical partition wall of the moving unit.

18 . The pouch-shaped battery sealing apparatus according to claim 2 , wherein the moving unit is configured to position a horizontal partition wall and a vertical partition wall of the pouch-shaped battery case, and the fixing unit is configured to fit the pouch-shaped battery case to a horizontal partition wall and a vertical partition wall of the moving unit.