Inhibit the phenomenon of electrodeposition in vehicle-mounted lithium batteries to achieve faster charging for electric vehicles

A Major Step Toward Faster-Charging EVs

A team of researchers from the United Kingdom and the United States has made a groundbreaking discovery that could reshape the future of electric vehicles. By finding a way to suppress lithium plating in lithium-ion batteries, they have opened the door to faster charging, improved safety, and longer-lasting batteries for electric cars.

The study, led by Dr. Xuekun Lu of Queen Mary University of London, was recently published in Nature Communications.

Why Lithium Plating Matters

When lithium-ion batteries are charged too quickly, lithium plating can occur. This happens when lithium ions accumulate on the negative electrode surface, forming a metallic lithium layer. Over time, this layer damages the battery, reduces its lifespan, and in severe cases can cause short circuits, fires, or even explosions.

This issue has long been one of the biggest obstacles to achieving safe and efficient rapid charging in electric vehicles.

The New Solution: Optimizing Graphite Electrodes

Dr. Lu and his collaborators tackled this challenge by focusing on the graphite negative electrode. Traditionally, this electrode consists of tiny graphite particles arranged in random patterns. The new research shows that fine-tuning the size, shape, and orientation of these particles can create more uniform reaction activity.

By reducing areas of local lithium saturation, this method significantly suppresses lithium plating and enhances overall battery performance.

How 3D Modeling Helped Unlock the Mystery

One of the key tools in this study was a cutting-edge 3D battery model. Using this model, the researchers were able to pinpoint when and where lithium plating begins, as well as track its growth rate.

This deeper understanding of the lithiation process inside graphite particles provides valuable insights for designing next-generation batteries and charging protocols.

Faster Charging and Higher Energy Density

The implications of this research go beyond safety. By refining the electrode’s microstructure, the team also found improvements in the battery’s energy density. This means electric vehicles equipped with such optimized batteries could travel longer distances on a single charge, while also charging more quickly.

Toward Safer, Smarter EV Batteries

This discovery marks a significant milestone in the pursuit of faster, safer, and more efficient EV batteries. The ability to suppress lithium plating not only reduces risks but also brings the industry closer to rapid-charging electric vehicles that combine safety with long range.

For drivers and manufacturers alike, this research offers a glimpse into a future where electric cars are more convenient, reliable, and practical than ever before.