171611-11-3 | Lithium bis(fluorosulfonyl)imide

CAS:171611-11-3 | Lithium bis(fluorosulfonyl)imide ,Description

Lithium bis(fluorosulfonyl)imide, or LiFSI, is a chemical compound composed of lithium, fluorosulfonyl, and imide. It is a highly soluble ionic liquid that is used in a variety of industrial and scientific applications. LiFSI has a number of unique properties that make it an attractive choice for many applications. It is a non-volatile, non-toxic, and has a low melting point, which makes it ideal for a variety of industrial and laboratory uses. LiFSI is also a strong oxidizing agent and can be used as a catalyst in a variety of reactions.
 

Scientific Research Applications

• Electrolyte for Lithium-Ion Batteries: LiFSI is used as a liquid electrolyte in lithium-ion batteries. It offers higher thermal stability compared to traditional salts like LiPF6, potentially providing a safer alternative. Research shows that LiFSI-based electrolytes exhibit high ionic conductivity and excellent solid electrolyte interphase (SEI)-forming ability, enhancing battery performance and safety (Abouimrane, Ding, & Davidson, 2009); (Hirata, Morita, Kawase, & Sumida, 2018).
• Improving Lithium Metal Anode Performance: LiFSI is used in highly concentrated electrolytes for lithium metal anodes, helping to achieve high-rate cycling without dendrite growth. This leads to enhanced battery performance and longer life (Qian et al., 2015).
• Aluminum Corrosion Studies: LiFSI is studied for its corrosion properties, especially regarding its interaction with aluminum, commonly used as the cathode current collector in batteries. This research is crucial for understanding and improving the durability and safety of lithium-ion batteries (Park et al., 2015).
• Development of Ethylene Carbonate-Free Electrolytes: LiFSI is utilized in the development of ethylene carbonate-free electrolytes. These novel electrolytes demonstrate improved performance in terms of thermal stability and cycling efficiency at various temperatures (Zhang et al., 2018).
• Solvation and Ionic Association Studies: Research includes studying the solvation and ionic association characteristics of LiFSI in various solvents. These studies provide insights into the behavior of LiFSI in different electrolyte environments, which is crucial for optimizing battery performance (Han et al., 2014).
• Compatibility with Low-Temperature Applications: LiFSI is explored in electrolytes designed for ultra-low temperature cycling, demonstrating its potential in extending the operational range of lithium-ion batteries (Cai et al., 2020).

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