UPDATED. 2024-02-27 09:17 (화)
SK On develop oxide solid electrolyte for solid-state battery
SK On develop oxide solid electrolyte for solid-state battery
  • Stan Lee
  • 승인 2023.09.04 10:14
  • 댓글 0
이 기사를 공유합니다

Material has high ion conductivity, battery maker says
Image: SK On
Image: SK On

SK On said on Thursday that it has developed an oxide solid electrolyte with high ion conductivity.

The South Korean battery maker, together with Dankook University Professor Hee Jung Park, coated a controllable additive on Li-La-Zr-O that improved the ion conductivity by 70% than before (1.7 mS/cmž).

The findings were published in Advanced Functional Materials issue IF19.9, SK On said.

While increasing the speed of lithium-ion conductivity decreases stability, the company said it used a technology that uniformly controls the microstructure of LLZO.

Conventional solid electrolyte suffers performance drop when exposed to water and carbon dioxide for a long time but this electrolyte showed high stability, SK On said.

SK On is currently developing both polymer oxide and sulfide solid-state batteries.

It is aiming to produce prototypes of them by 2026 and start mass production in 2028. At its lab in Daejeon, a pilot line for the batteries is being constructed that is set to go live next year.

While oxide solid electrolyte has lower ion conductivity than sulfide electrolyte, it has less reaction to cathode materials and can control lithium dendrite formations. The graphite anode can be replaced with lithium metal.

Battery capacity can also be significantly increased by up to 5.5V compared to lithium-ion battery’s 4.3V.

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