Electrode connection apparatus and electrode connection automation method using the same

Patent metadata

Field	Value
Publication number	US-12583700-B2
Application number	US-202117915000-A
Country	US
Kind code	B2
Filing date	Jul 6, 2021
Priority date	Jul 14, 2020
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

The present invention relates to an electrode connection apparatus including a transfer unit configured to transfer a start portion of a standby electrode roll in a state of gripping the start portion, a leading unit configured to move upwards in a state of gripping the start portion of the standby electrode roll transferred by the transfer unit, a first connection unit configured to fix the standby electrode roll transferred by the leading unit, a second connection unit configured to fix an end portion of a moving electrode roll, and a taping unit configured to connect the standby electrode roll and the moving electrode roll to each other, whereby it is possible to automatically connect the electrode rolls to each other during an electrode manufacturing process performed as a roll-to-roll process.

First claim

The invention claimed is:

1 . An electrode connection apparatus comprising:
a transfer unit configured to transfer a start portion of a standby electrode roll in a horizontal direction while gripping the start portion; a leading unit configured to move upwards in a vertical direction perpendicular to the horizontal direction while gripping the start portion of the standby electrode roll; a first connection unit configured to fix the start portion of the standby electrode roll to a fixing surface thereof, the fixing surface extending in a first vertical plane parallel to the vertical direction and perpendicular to the horizontal direction; a second connection unit configured to fix an end portion of a moving electrode roll to a fixing surface thereof, the fixing surface extending in a second vertical plane parallel to the first vertical plane; and a taping unit configured to connect the start portion of the standby electrode roll and the end portion of the moving electrode roll to each other by moving a tape of the taping unit in the horizontal direction to contact the start portion of the standby electrode roll and the end portion of the moving electrode roll, the taping unit having an attachment portion configured to fix a non-adhesive surface of the tape thereto by suctioning, wherein the transfer unit comprises a pair of transfer grippers spaced apart from each other and is configured to grip the start portion of the standby electrode roll, wherein the electrode connection apparatus is configured such that when the first connection unit moves toward the second connection unit, an edge of the start portion of the standby electrode roll abuts an edge of the end portion of the moving electrode roll, wherein the transfer unit is configured to rotate the start portion of the standby electrode roll to change motion of the start portion from the horizontal direction to the vertical direction, wherein the electrode connection apparatus is configured to fix the end portion of the moving electrode roll to a second surface of the second connection unit, and the taping unit is disposed adjacent to a first surface of the second connection unit, the first surface being an outermost surface of the second connection unit parallel to and opposite the second surface, and wherein the second connection unit has an opening extending therethrough from the first surface to the second surface, the opening being configured to receive the attachment portion and the tape of the taping unit passing therethrough, the second surface of the second connection unit configured to fix the end portion of the moving electrode roll thereto by suctioning.

2 . The electrode connection apparatus according to claim 1 , wherein the transfer unit is configured to move toward the standby electrode roll in a first direction and in a second direction opposite the first direction while gripping opposite side edges of the start portion of the standby electrode roll.

3 . The electrode connection apparatus according to claim 1 , wherein the leading unit is configured to move downwards, grip an edge of the start portion of the standby electrode roll, and move upwards.

4 . The electrode connection apparatus according to claim 1 , wherein the first connection unit is configured to fix the start portion of the standby electrode roll thereto by suctioning.

5 . The electrode connection apparatus according to claim 1 , wherein the first connection unit comprises a moving cutter configured to cut the standby electrode roll.

6 . The electrode connection apparatus according to claim 5 , wherein the electrode connection apparatus is configured to fix the start portion of the standby electrode roll to a first surface of the first connection unit, the first connection unit has the moving cutter disposed at a second surface thereof, the second surface being an outer surface of the first connection unit opposite the first surface, and the first connection unit has a slit configured to slidably receive the moving cutter therein, such that when the moving cutter slides along the slit, the moving cutter cuts the standby electrode roll.

7 . The electrode connection apparatus according to claim 1 , wherein the taping unit comprises:
a supply portion configured to supply a tape; a tape gripper configured to transfer the tape to an attachment portion of the taping unit; and the attachment portion being configured to move to an electrode roll connection portion of the start portion of the standby electrode roll and the end portion of the moving electrode roll to fix the tape to the electrode roll connection portion, and the tape gripper has a tape cutter configured to cut the tape.

8 . An electrode connection automation method using the electrode connection apparatus according to claim 1 , the electrode connection automation method comprising:
(a) transferring the start portion of the standby electrode roll while gripping the start portion; (b) moving the leading unit downwards, gripping the start portion of the standby electrode roll, and transferring the start portion of the standby electrode roll to the first connection unit; (c) cutting the start portion of the standby electrode roll; and (d) connecting the start portion of the standby electrode roll and the end portion of the moving electrode roll to each other.

9 . The electrode connection automation method according to claim 8 , further comprising, after step (c), moving the start portion of the standby electrode roll in a direction toward the moving electrode roll.

10 . The electrode connection automation method according to claim 8 , wherein step (d) comprises:
mounting a tape to an attachment portion of the taping unit; and attaching the tape to a connection portion at which the start portion of the standby electrode roll and the end portion of the moving electrode roll abut each other.

Assignees

• Lg Energy Solution Ltd

Inventors

• Lee Young Soo
• Lee Jin Soo
• Hwang Hong Ju
• Lee Seung Hoo

Classifications

• H01M10/0409

  for cells with wound electrodes · CPC title

• B65H2701/19

  Specific article or web · CPC title

• B65H2301/4631

  Adhesive tape · CPC title

• B65H2301/4622

  Abutting article or web portions, i.e. edge to edge · CPC title

• B65H2301/46115

  by bringing leading edge to splicing station, e.g. by chain or belt · CPC title