SMRTR Science & EngineeringJan 7, 2026Ars Technica

New battery idea gets lots of power out of unusual sulfur chemistry

SMRTR summary

Researchers developed a new battery using unusual sulfur chemistry that achieves over 2,000 Watt-hours per kilogram energy density by forming sulfur tetrachloride at the cathode while sodium plates onto aluminum at the anode. The battery survived 1,400 charge cycles and costs approximately $5 per kilowatt-hour, roughly one-tenth the price of current sodium batteries.

SMRTR provides this summary for quick context. The original article belongs to Ars Technica.

Read the original article
SMRTR Science & Engineering

Get the next batch of curated summaries in your inbox.

This archive is built from SMRTR newsletter summaries. Subscribe for hand-picked stories without the extra noise.