Why sodium-ion can't yet challenge lithium-ion's reign

A new generation of sodium-ion (Na-ion) battery cells has been launched as an alternative to the virtual monopoly of lithium-ion (Li-ion). Although the technology is unlikely to displace significant Li-ion market share, recent improvements make Na-ion a viable solution for certain niche applications, with potential for wider usage if cost becomes competitive.From ESS News The basic structure of Na-ion batteries closely resembles that of Li-ion batteries, consisting of positive and negative electrodes, an electrolyte, and a separator. Round-trip efficiencies are similar to Li-ion at 90-plus percentages, ...

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