Throw in other advantages over lithium-ion batteries—including less energy capacity loss at low temperature, less risk of thermal runaway, and a supply chain not controlled mostly by China—and the case for sodium-ion batteries strengthens. . Increases in the energy density of sodium-ion batteries means they are now suitable for stationary energy storage and low-performance electric vehicles. But unlike lithium, a somewhat rare element that is currently mined in only a handful of countries, sodium is cheap and found everywhere. And while today's sodium-ion. .
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