VFBATTERY REPORT

Fast & Extreme Fast Charging

Pages 404–407 (4 pages)

Battery Report 2024, page 407: Fast & Extreme Fast Charging
Text on page 407

Combining Fluoroacetonitrile FAN With Lithium Bis(Fluorosulfonyl)Imide Salt To Enable Ultrafast Lithium-Ion Conduction

A novel ligand-channel mechanism is introduced, where the small-sized fluoroacetonitrile FAN solvent forms dual solvation sheaths around Li+ ions, resulting in fast Li+ transport channels and stable SEI.

ULTRAHIGH IONIC CONDUCTIVITY

LOW TEMPERATURE PERFORMANCE

FAST CHARGING CAPABILITY

REPRESENTATIVE PERFORMANCE

At 80°C, a pouch cell delivered reversible capacities at 51% of its room-temperature capacity

In high-rate charging tests 6C, the FAN-based electrolyte outperformed traditional electrolytes with a capacity retention of 80% over 3,000 cycles

Source: Nature, 2024, 6278002 101107 (https://www.nature.com/articles/s41586024070454

Extracted from the PDF; charts and images may read imperfectly.

Page 407 · 4/4