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Technology

CATL's New Sodium-Ion EV Battery Works In -40 Degree Cold

CATL Sodium China lithium BYD United States
  • CATL's second-generation sodium-ion cells can reportedly discharge normally even at -40 degrees Celsius (-40F as temperature scales converge). 
  • Depending on the make and model, EV batteries perform the best between 60F to 110F. The operating range can go much higher or lower, but that affects performance and range.
  • Sodium-ion battery production is in its nascent stage, but several battery makers, including BYD, CATL and Northvolt are betting on them for certain low-energy density applications. 
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