Mathematical Framework to Model Electrodeposition/Stripping in Li-Metal Batteries during Cycling

• DOI: 10.1149/ma2024-015727mtgabs
• Publication Date: 2024-08-19T15:11:40Z
• Authors: Tushar Telmasre; Taejin Jang; Lubhani Mishra; Venkat R. Subrama...
• Keywords: Plating (geology); Stripping (fiber)

Li-metal batteries, often heralded as the next frontier in energy storage technology, boast remarkable characteristics such high density. Unlike traditional lithium-ion batteries incorporate a lithium-metal anode, which significantly enhances their This higher density translates to substantial increase amount of that can be stored given volume or weight, paving way for more powerful and longer-lasting solutions[1–3]. However, significant shortcomings do exist, uneven Li-Metal deposition, dendrite formation, dead lithium, etc.[4] These phenomena are different than what usually observed Li-ion with intercalation chemistry lead issues poor cycle life, low coulumbic efficiency, safety concerns.[3] Mathematical modeling is promising approach studying physicochemical processes involved understand morphology changes during cycling. The plating stripping lithium metal on anode cycling modeled moving boundary problem.[5] Since process involves shrinking expanding electrolyte domain, problems call fastidious implementation model equations conditions.[6] In this talk, we will show general mathematical framework 1D systems. It expands upon importance carefully implementing conditions tackle mass conservation issue arises while model. also touch additional complexities associated 2D systems convection phase. References: Wang J, Ge B, Li H, et al (2021) Challenges progresses batteries. Chem Eng J 420:129739. https://doi.org/10.1016/j.cej.2021.129739 R, Cui W, Chu F, Wu F (2020) Lithium anodes: Present future. Energy 48:145–159. https://doi.org/10.1016/j.jechem.2019.12.024 Liu Bao Z, Y, (2019) Pathways practical high-energy long-cycling Nat 4:180–186. https://doi.org/10.1038/s41560-019-0338-x Bandhauer TM, Garimella S, Fuller TF (2011) A Critical Review Thermal Issues Lithium-Ion Batteries. Electrochem Soc 158:R1. https://doi.org/10.1149/1.3515880 Mishra L, Subramaniam A, Jang T, Perspective—Mass Conservation Models Electrodeposition/Stripping Metal 168:092502. https://doi.org/10.1149/1945-7111/ac2091 (2023) Addressing Mass Two-dimensional Modeling Batteries Electrochemically Plated/Stripped Interfaces. 170:110516. https://doi.org/10.1149/1945-7111/ad0510