Multi-cell tab cutting apparatus and method therefor

Patent metadata

Field	Value
Publication number	US-10971750-B2
Application number	US-201815946545-A
Country	US
Kind code	B2
Filing date	Apr 5, 2018
Priority date	Apr 6, 2017
Publication date	Apr 6, 2021
Grant date	Apr 6, 2021

Abstract

Disclosed herein are a multi-cell tab cutting apparatus for a plurality of cells, which have a plurality of tabs formed at one side, and a method therefor. The multi-cell tab cutting apparatus includes a base frame, a cell tab fixer connected to the base frame and configured to fix and support the plurality of tabs, and a cutter positioned at the base frame and configured to cut the plurality of tabs through driving.

First claim

What is claimed is:

1. A multi-cell tab cutting apparatus for a plurality of stacked cells, which have a plurality of tabs formed at one side, the apparatus comprising:
a base frame;
a cell fixer configured to fix cell bodies of the plurality of stacked cells so that the plurality of tabs are spaced at predetermined intervals;
at least one cell tab fixer having a plurality of fixing recesses formed at the predetermined intervals so that the plurality of tabs of the plurality of cells are inserted and fixed, respectively,
at least one cutter configured to cut the fixed plurality of the tabs while maintaining the predetermined intervals of the plurality of the tabs, and
the at least one cutter includes a cutting member having a plurality of cutting recesses, each tab of the plurality of tabs is disposed within a corresponding cutting recess and the tabs are simultaneously cut during driving of the cutting member.

2. The apparatus of claim 1 , further comprising a slider configured to rectilinearly drive the cutter.

3. The apparatus of claim 1 , wherein the at least one cell tab fixer includes a first fixer and a second fixer which are spaced apart from each other.

4. The apparatus of claim 3 , wherein:
the at least one cutter includes a cutting blade at one side, and
the cutting blade is inserted into a space between the first fixer and the second fixer to sequentially cut the plurality of tabs in a predetermined direction.

5. The apparatus of claim 1 , further comprising a transferer configured to transfer the at least one cutter and the cell tab fixer.

6. The apparatus of claim 1 , wherein:
a plurality of tabs are formed at both sides of each of the plurality of stacked cells, and
at least two cutters and at least two cell tab fixers are located at each of both sides of the plurality of stacked cells.

7. The apparatus of claim 1 , wherein:
the at least one cutter cuts the plurality of tabs through driving once.

8. A multi-cell tab cutting method, comprising:
fixing a plurality of stacked cells to a cell fixer provided in a base frame so that a plurality of cell tabs of the plurality of stacked cells are spaced at a predetermined interval;
inserting and fixing the plurality of cell tabs the plurality of stacked cells to a plurality of fixing recesses formed at the predetermined interval of a cell tab fixer, respectively;
providing a cutting member;
inserting each fixed cell tab of the plurality of cell tabs into a corresponding recess provided on the cutter member and simultaneously cutting the plurality of fixed cell tabs while maintaining the predetermined intervals of the plurality of fixed cell tabs.

9. The method of claim 8 , further comprising fixing a cell body of each of the plurality of stacked cells by a cell fixer.

10. The method of claim 8 , further comprising sequentially cutting the plurality of tabs in a predetermined direction.

11. The method of claim 8 , further comprising transferring the cell tab fixer and the cutter to approach toward the plurality of stacked cells or to separate from the plurality of stacked cells.

12. The method of claim 8 , wherein a plurality of tabs are formed at both sides of each of the plurality of stacked cells, and the cutter is driven at both sides of the plurality of stacked cells.

Assignees

• Sk Innovation Co Ltd

Inventors

• Ju Seung Hoon
• Kim Kwan Yong
• Lim Ji Hoon
• Choi Eun Jeong
• Chung Gyu Jin

Classifications

• B26D1/085 Primary

  for thin material, e.g. for sheets, strips or the like · CPC title

• H01M50/531 Primary

  Electrode connections inside a battery casing · CPC title

• H01M50/543

  Terminals · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title