Tans-4,5-Difluoroethylene Carbonate is a high-purity, fluorinated cyclic carbonate compound featuring a trans configuration of fluorine atoms on the five-membered dioxolane ring. This specialized structure distinguishes it from other isomers and contributes to its superior performance as an advanced electrolyte additive in next-generation rechargeable batteries.
Key Features and Benefits:
- Superior SEI Formation: Promotes the creation of a robust, LiF-rich solid electrolyte interphase (SEI) layer on anode materials, effectively suppressing lithium dendrite growth and enhancing battery safety.
- Improved Cycling Stability: Significantly boosts capacity retention and cycle life in lithium metal batteries (LMBs), lithium-ion batteries (LIBs), and sodium-ion batteries (NIBs), often outperforming traditional additives like fluoroethylene carbonate (FEC).
- High-Voltage Compatibility: Enables stable operation at elevated voltages (up to 4.5–4.6 V), ideal for high-energy-density applications such as NMC-based cathodes and silicon-oxide anodes.
- Enhanced Performance in Challenging Anodes: Particularly effective for microsized SiOₓ@C anodes, maintaining structural integrity and reducing volume expansion issues during charge/discharge cycles.
- Versatile Applications: Also serves as a valuable intermediate in pharmaceutical synthesis (for fluorine incorporation) and polymer production (for thermally stable, chemically resistant materials).
Applications: Primarily used as a multifunctional electrolyte additive in advanced energy storage systems, including electric vehicles (EVs), portable electronics, and grid-scale storage. Additional uses in materials science and drug development.
This innovative compound represents a breakthrough in electrolyte technology, delivering longer-lasting, safer, and higher-performance batteries for modern demands.
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