Lithium Fluoride (LiF) Nanopowder (≥99.99%) as Battery Electrode Additive for Artificial SEI Research, 50-200 g/bottle, CASEIBEALiFNP

Integrating Lithium Fluoride (LiF) powder as an active electrode component or functional additive for Artificial Solid Electrolyte Interphase (a-SEI) research has become a cornerstone strategy in high-performance lithium-metal and high-capacity anode (such as silicon or lithium-alloy) development.   Although bulk LiF is classically understood as an electronic and ionic insulator (~ 10^{-13} to 10^{-14} S/cm), nanoscale engineering and composite interphase research reveal that LiF-rich boundaries possess extraordinary electrochemical benefits.

The key advantages of LiF powder in SEI research are: (1) Mechanical Robustness & Shear Modulus: LiF possesses a high shear modulus, providing a rigid mechanical barrier that physically restrains local volume fluctuations and suppresses sharp dendrite penetration during high-rate stripping and plating cycles. (2) Interfacial Energy & Synergy with Li2O: Advanced cryogenic transmission electron microscopy (cryo-HRTEM) and surface studies demonstrate that LiF forms a stable nano-interphase with Li2O. This LiF/Li2O heterostructure and its associated grain boundaries provide low-activation-energy pathways for rapid Li+ hopping, reconciling its bulk insulating property with fast interfacial transport. (3) Suppression of Parasitic Reactions: A well-designed LiF-rich a-SEI passivates reactive metal surfaces, cutting off direct contact between fresh lithium/alloy anodes and organic carbonate solvents to drastically reduce continuous electrolyte consumption and gas evolution.

Notes: Please try to store the LiF powder in a dry place.

References: 

1. Y. H. Tan, et al. Lithium Fluoride in Electrolyte for Stable and Safe Lithium-Metal Batteries, Adv. Mater., 2021, 33, 2102134
2. L. Zhang, et al. LiF as an Artificial SEI Layer to Enhance the High-Temperature Cycle Performance of Li4Ti5O12, Langmuir (2017) 33 (42): 11164–11169.