Low-Cost Liquid Electrolytes For Room-Temperature Fluoride Ion Batteries

Brief Description

This invention introduces a groundbreaking liquid electrolyte for fluoride-ion batteries, offering high electrochemical stability, superior ionic conductivity, and excellent thermal stability.

Full Description

The disclosed technology pertains to a novel class of liquid electrolytes designed for use in fluoride-ion batteries (FIBs). These electrolytes demonstrate an unprecedented electrochemical stability window of above 11 V, ionic conductivity greater than 3 mS/cm, and thermal stability up to 200°C. Comprising commonly available and inexpensive industrial chemicals, the electrolytes can be based on organic, aqueous, or aqueous-organic systems, including the salt, solvent, and diluent components.

Suggested uses

• Manufacturing of fluoride-ion batteries for consumer electronics. 
• Energy storage solutions for renewable energy systems. 
• Electric vehicles requiring high energy density and thermal stability. 
• Portable power sources with enhanced safety and lower environmental impact.

Advantages

• Extended electrochemical stability window of above 11 V, enabling broader application in high-voltage systems. 
• Superior ionic conductivity (> 3 mS/cm), facilitating efficient charge transport. 
• Excellent thermal stability up to 200°C, ensuring performance under extreme conditions. 
• Cost-effective production from commonly available industrial chemicals. 
• Compatibility with both organic and aqueous systems, offering flexibility in battery design.

Patent Status

Patent Pending

Related Materials

• Peichao Zou, Chunyang Wang, Yubin He, Huolin L. Xin, and Ruoqian Lin. A Water-in-Salt Electrolyte for Room-Temperature Fluoride-Ion Batteries Based on a Hydrophobic–Hydrophilic Salt. Nano Letters 2024 24 (18), 5429-5435. DOI: 10.1021/acs.nanolett.4c00244