'It doesn’t catch fire': Why China’s "fireproof" sodium battery could be the breakthrough that makes EVs safer than ICE cars

Technicians assemble sodium-ion battery units at a production facility in central China's Henan Province .

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• Internal battery firewall stops overheating before fires begin during failure conditions
• Ampere-hour sodium-ion cells demonstrate complete suppression of thermal runaway reactions
• Three-part safety system improves stability without reducing energy output performance