SMRTR Science & EngineeringOct 16, 2025Interesting Engineering

Sodium-ion batteries retain 90% capacity after 100 cycles with new tin-based anode

SMRTR summary

Researchers developed a tin-based anode enabling sodium-ion batteries to reach 178 Wh/kg energy density, surpassing lithium iron phosphate cells. This breakthrough could make sodium-ion batteries competitive for energy storage and electric vehicles.

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