콘텐츠 본문
논문 해외 국제전문학술지(SCI급) Dendrite Suppression by Lithium-Ion Redistribution and Lithium Wetting of Lithium Zeolite Li2(Al2Si4O12) in Liquid Electrolytes
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2022-10
- 저자명 Isheunesu Phiri, Jungmin Kim, Vera Afumaa Afrifah, Jeong-Tae Kim, Yongmin Lee and Sun-Yul Ryou
- 학술지명 ACS Applied Materials & Interfaces
- 발행처명 American Chemical Society
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 6
- 논문 다운로드 링크(외부) https://pubs.acs.org/doi/full/10.1021/acsami.2c12512
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
Lithium metal is considered a next-generation anode material for high-voltage, high-energy-density batteries; however, its commercialization is limited because of dendrite formation during charging, which leads to short-circuiting and fire. Li metal is coated with a lithium zeolite Li2(Al2Si4O12) (bikitaite - BKT) for dendrite suppression. The BKT-coated Li metal anode exhibits enhanced cycle performance for both Li/LMO (over 982 cycles) and Li/Li cells (over 2000 h at 0.52.0 mAh cm−2 and 693 h at 2.0 mAh cm−2 ). Moreover, the voltage profile of the Li/Li cells deviates from the conventional Li plating behavior. We hypothesize that this is due to the Li wetting of the BKT particles during plating, which leads to the formation of an interconnected three-dimensional (3D) Li network. Furthermore, BKT, a Li conductor, promotes even Li + -ion distribution during plating, resulting in the uniform deposition of Li and, consequently, suppressed dendrite formation. This work provides evidence that BKT can be potentially used in Li metal batteries.
