AgNO3-preplanted Li metal powder electrode: Preliminary formation of lithiophilic Ag and a Li3N-rich solid electrolyte interphase
- Authors
- Kang, Dongyoon; Jin, Dahee; Moon, Janghyuk; Dzakpasu, Cyril Bubu; Lee, Hyobin; Choi, Seungyeop; Jo, Taejin; Lee, Hongkyung; Ryou, Sun-Yul; Lee, Yong Min
- Issue Date
- Jan-2023
- Publisher
- Elsevier B.V.
- Keywords
- Li metal battery; Li metal powder; Lithium nitride; Nucleation; Silver nitrate
- Citation
- Chemical Engineering Journal, v.452
- Journal Title
- Chemical Engineering Journal
- Volume
- 452
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/69525
- DOI
- 10.1016/j.cej.2022.139409
- ISSN
- 1385-8947
1873-3212
- Abstract
- Li metal powders (LMPs) are beneficial to fabricating thin and large-area Li electrodes for Li metal batteries (LMBs) owing to slurry coating-based manufacturing and facile impregnation of functional additives. 3D structure of LMP-based composites can alleviate the local current density even at a higher current. However, non-uniform nucleation and growth persist as barriers to guaranteeing both the performance and safety of LMBs. Here, we report an AgNO3-preplanted LMP electrode for securing long stable cycling of LMBs. During pre-mixing the LMP slurry with AgNO3 additive, it can chemically form lithiophilic Ag that can offer favorable nucleation sites throughout the LMP surface. At the same time, nitrates can help enrich a highly conductive, robust Li3N into solid electrolyte interphase (SEI). Pre-planting AgNO3 into a 40 μm-thick LMP electrode reinforced the cycling stability up to 500 cycles with 86.8 % capacity retention at 1C/3C charging/discharging rates and allowed superior rate capability up to 30C. © 2022 Elsevier B.V.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Energy System Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.