Scientists just made an EV battery that barely degrades even after 1,300 charges

A team of Korean researchers has developed a revolutionary EV battery: a lithium-metal battery coated with silver ions that stays stable even after 1,300 charges.

The new design promises safer, longer-lasting, and higher-capacity batteries, solving one of the biggest hurdles in electric vehicle technology.

It’s all thanks to a microscopic silver-based coating that keeps the battery from growing dangerous metal spikes.

If it scales up, your next EV could go much farther and last years longer.

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Twice the energy density, without the downsides

For decades, scientists have eyed lithium-metal batteries as the next big leap in energy storage.

These innovative EV batteries can offer nearly twice the energy density of lithium-ion packs used today.

But there’s been one persistent problem: dendrites.

These tiny, tree-like metal spikes form on the EV battery’s surface during charging and can pierce internal layers, leading to short circuits or even fires.

That’s where Professor Cho Jin-han and his team at Korea University come in.

They developed a simple but ingenious solution: coating the battery’s electrode with alternating layers of silver ions and a compound called trithioisocyanuric acid (TCA).

This creates an ultrathin, protective barrier that helps lithium spread out evenly instead of clumping into dangerous shapes.

Even better, the process works at room temperature and normal air pressure, without any complex manufacturing steps or extreme heat.

Once the battery is in use, the silver ions turn into tiny silver particles that act like road signs, guiding lithium atoms to deposit evenly.

Meanwhile, the TCA forms a tough, flexible layer that prevents cracking over time.

The result is a smoother, more stable lithium-metal battery that not only avoids overheating but also lasts far longer.

This new EV battery technology may make EVs even more popular

In lab tests, the team’s prototype ran stably for over 2,000 hours and retained 96 percent of its capacity after 1,300 charge-discharge cycles, which is a massive improvement over current tech.

Cho’s group believes their new EV battery could extend beyond lithium to other metal-based batteries like sodium and zinc.

In other words, this ‘silver touch’ might be the key to safer and longer-lasting power for EVs.

This is important as many consumers are still wary of buying EVs because they think electric cars lack the longevity of gas-powered cars.

If the new lithium-metal battery is rolled out, it’s likely that EVs will become even more popular than they are now.

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