SMRTR Science & EngineeringDec 10, 2025Live Science

Scientists create new solid-state sodium-ion battery — they say it'll make EVs cheaper and safer

SMRTR summary

Scientists developed a breakthrough solid-state sodium-ion battery that replaces flammable liquid components with stable sulfur-chlorine materials, making electric vehicles safer and cheaper than current lithium-ion technology. The new battery achieved 99.26% efficiency after 600 charging cycles while using abundant sodium instead of scarce lithium, potentially revolutionizing energy storage.

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