Sodium-ion batteries close gap with lithium-ion as utility-scale storage opportunities grow

Sodium-ion batteries are approaching lithium-ion performance in key areas, with commercial cells reaching energy densities of 175 Wh/kg and strong low-temperature performance, according to the report. Polytechnic University of Turin professor Silvia Bodoardo told pv magazine that utility-scale energy storage is the technology's most promising market as manufacturers ramp up production.

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