A new lithium-ion battery electrolyte has been developed to significantly accelerate electric vehicle (EV) charging speeds, without compromising battery longevity. The formulation enhances ion flow, reducing internal resistance during high-current charge cycles .
Led by Oak Ridge National Laboratory, researchers created novel lithium-salt and carbonate solvent blends that sustain ion transport under fast charging achieving 80% battery recharge in just 10 minutes, while maintaining performance across 1,500 cycles .
This innovative electrolyte addresses a key obstacle in EV adoption: the charging-speed/lifetime trade-off. It prevents lithium plating, electrode cracking, and excess heat—common issues that undermine rapid charging.
The framework aligns with federal and industry targets—like the U.S. Department of Energy’s goal of achieving 80% charge in under 15 minutes with 15‑year battery life. It also supports emerging fast-charging systems capable of safely charging in 5–10 minutes .
Alongside the electrolyte, breakthroughs in electrode structure and thermal management are essential. Combined, they enable thick, high-energy cells to reach fast-charging performance previously limited to low-energy-density designs.
As fast and reliable EV charging becomes increasingly vital for mass adoption, this new electrolyte formulation marks a major advancement—bringing ultra-fast charging closer to commercial reality while maintaining durability and safety.
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