CATL’s sodium battery roadmap aligns with large-scale deployment plans across passenger cars, energy storage, and swapping systems.
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Battery maintains 80% capacity after 1,400 cycles in 60°C heat, about 840,000 kilometers.
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After first rolling out sodium-ion batteries in commercial vehicles, CATL has now begun deploying them in passenger vehicles. The batteries fall under CATL’s sodium battery brand, Naxtra, which is preparing for public winter testing in passenger cars.
According to reports, Changan’s Oshan models are among the first to take part in these tests, with passenger cars from GAC and JAC expected to follow later.
The focus on winter testing is not accidental. One of sodium-ion batteries’ biggest promises is reliable performance in extreme cold. Lithium-ion batteries, in general, tend to struggle in such conditions. More on that later.
CATL officially unveiled its sodium-ion battery in April last year, and on paper, the numbers are quite impressive. CATL claims an energy density of 175Wh/kg, a hybrid electric range of over 200km, and a pure electric range exceeding 500km. The battery also supports 5C super-fast charging and is rated for up to 10,000 charge cycles, which suggests a long usable lifespan.
Safety is where CATL is making its strongest case. The company says its sodium-ion batteries have passed extreme tests such as needle penetration, electric drill penetration, extrusion, and even battery sawing without catching fire or exploding. That’s a big reason why sodium-ion batteries are the next viable options for EVs.
As we mentioned earlier, the sodium-ion batteries also perform exceptionally in cold weather. In real-world tests at –30°C, CATL says the battery can charge from 30 percent to 80 percent in about 30 minutes, while retaining 93 percent of its usable capacity. Even at just a 10% state of charge, vehicles were reportedly able to maintain highway speeds of 120km/h.
CATL’s sodium-ion battery passed certification under China’s new national standard in September last year. The regulation introduces stricter safety requirements around heat diffusion, underbody impacts, and fast-charging durability. Independent testing by the China Automotive Technology and Research Center (CATARC) also backed CATL’s safety claims at both the cell and battery pack levels.
Beyond safety, sodium-ion technology could help reduce reliance on lithium, lower costs, and improve sustainability.
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(Via)
The post CATL begins testing fire-resistant sodium-ion batteries in passenger vehicles appeared first on Gizmochina.
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