UPDATED. 2024-06-14 08:17 (금)
SK Innovation applies Gen 3 Z-stacking in battery production
SK Innovation applies Gen 3 Z-stacking in battery production
  • Stan Lee
  • 승인 2021.06.17 21:26
  • 댓글 0
이 기사를 공유합니다

Production capacity increased 2.3 times compared to Gen 1
Image: SK Innovation
Image: SK Innovation

SK Innovation has applied Gen 3 Z-stacking equipment to its battery production lines, TheElec has learned.

Stacking equipment is used to attache the separator between the cathode and anode. It is the next step to notching in battery production.

The new Gen 3 Z-stacking was first applied to SK Innovation’s factory in Seosan, South Korea, its so-called “Mother Fab”. Its application will likely be expanded the company’s facilities in China, Hungary and the US.

Its Gen 3 Z-stacking equipment is 30ppm fast, which is 2.3 times faster than the Gen 1 equipment applied in the early 2010s.

Previous equipment had limitations on handling battery materials that were increasingly becoming longer, which hampered productivity.

Samsung SDI also uses Z-stacking in its battery production. LG Energy Solution, meanwhile, uses lamination and stacking. Unlike Z-stacking, where cathode and anode are stacked inside a magazine, LG Energy Solution attaches the electrode on to the separator. 

An automobile customer to SK Innovation had previously complained that the Z-stacking method used by the company was lacking in productivity to those of LG Energy Solution’s lamination and stacking, a person involved with SK Innovation’s stacking process said.

SK Innovation succeeded in develop Gen 3 Z-stacking back in 2018 and is currently researching ways to further expand the battery cell width to increase energy density, they said.

SK Innovation claims the Z-stacking method can solve the problem of not having the anode and separator inside the cell. Despite the 30ppm speed, the cells are also aligned well, causing no shorts, the firm also claims.

The company is also looking to automate its production line. Currently, notching and stacking processes are done separately. The company is looking to combine them through an in-line equipment.

SK Innovation is planning to place orders for its third factory in Hungary in August.  The newer equipment may be applied here first for factories outside of South Korea.

삭제한 댓글은 다시 복구할 수 없습니다.
그래도 삭제하시겠습니까?
댓글 0
계정을 선택하시면 로그인·계정인증을 통해
댓글을 남기실 수 있습니다.

  • 515, Nonhyeon-ro, Gangnam-gu, Seoul, Republic of Korea 4F, Ahsung Bldg.
  • 대표전화 : 82-2-2658-4707
  • 팩스 : 82-2-2659-4707
  • 청소년보호책임자 : Stan LEE
  • 법인명 : The Elec Inc.
  • 제호 : THE ELEC, Korea Electronics Industry Media
  • 등록번호 : 서울, 아05435
  • 등록일 : 2018-10-15
  • 발행일 : 2018-10-15
  • 발행인 : JY HAN
  • 편집인 : JY HAN
  • THE ELEC, Korea Electronics Industry Media Prohibiting unauthorized duplication,publishing,modification and distribution the material on this Site for any purpose.
  • Copyright © 2024 THE ELEC, Korea Electronics Industry Media. All rights reserved. mail to powerusr@thelec.kr