Fluoroethylene Carbonate​

Fluoroethylene Carbonate​ is a premium electrolyte additive designed to boost the performance, efficiency, and lifespan of lithium-ion batteries. With a chemical formula of C₃H₃FO₃ and purity levels reaching ≥99%, this clear, colorless liquid stands out for its stability and high dielectric constant. These characteristics make it a top choice for industries focused on building reliable energy storage systems—especially in sectors like electric vehicles, mobile devices, and advanced power tools.

What Makes Fluoroethylene Carbonate​ Special?

Unlike standard additives, Fluoroethylene Carbonate​ (FEC) helps form a strong and stable solid electrolyte interphase (SEI) layer on battery electrodes. This thin but robust layer protects internal components and prevents capacity loss over time. The presence of fluorine atoms in its structure also enhances compatibility with various lithium salts, promoting better conductivity and overall system performance—even in extreme temperatures.

Technical Details

• Appearance: Clear, colorless liquid

• Purity: ≥99%

• Melting Point: 18–23 °C

• Boiling Point: 212 °C

• Density: 1.485 g/cm³ (at 25 °C)

• CAS Number: 114435-02-8

• Recommended Storage: 2–8 °C, dry and sealed

Why Choose FEC Over Other Additives?

FEC isn’t just another chemical—it’s a performance enhancer. It improves low-temperature operation, extends battery cycle life, and ensures better charge retention. Compared to standard carbonate additives, FEC’s superior stability means fewer performance drops and longer-lasting power sources. It’s often the preferred choice in next-generation battery designs.

Who Should Use Fluoroethylene Carbonate​?

FEC is perfect for battery manufacturers, R&D labs, and anyone building high-efficiency lithium-ion cells. Whether you’re engineering the next EV battery or working on long-life storage solutions, this additive gives your project a measurable edge.

Trusted Performance and Proven Results

FEC has earned a reputation for reliability in demanding conditions. Its stable chemical nature helps maintain battery integrity even under frequent charge-discharge cycles. Properly stored and handled in dry environments, it integrates smoothly into standard manufacturing processes.

Common Questions Answered

What does Fluoroethylene Carbonate​ do in a battery

It strengthens the electrode interface by forming a stable SEI layer, which protects against capacity loss and improves overall efficiency.

Is it compatible with all lithium-ion batteries?

Yes, it works with various chemistries and is especially effective in cells that require long cycle life and strong thermal stability.

Does it improve low-temperature performance?

Absolutely. FEC helps maintain battery output and capacity even in cold environments where standard electrolytes struggle.

If you’re aiming to build lithium-ion batteries that last longer, perform better, and stay stable under stress, Fluoroethylene Carbonate is the additive you’ve been looking for.