Contemporary Amperex Technology Co Limited (CATL) has announced that it will start mass producing its next generation sodium-ion batteries from next year. They’ll arrive to market with a range of 500km and be both cheaper to produce and significantly kinder on the environment. This is due to their reliance on abundant sodium, rather than much-rarer and harder to extract lithium. There’s no word yet which car-maker will be first to use the new battery tech.
CATL says the drawback of its next-gen sodium-ion batteries is that with an energy density of 175Wh/kg, their power density is much lower than more common battery chemistries like lithium-iron phosphate. However, from then on, it’s a win-win situation for owners.
Not only are they cheaper, but they also have a far lower carbon footprint, are safer to use and work well in low temperatures.
According to CATL, it predicts that sodium-ion cells’ lower price will see them employed in more than 40 per cent of passenger vehicles in the future, with the tech expected to appeal to car-makers developing small, affordable EVs.
Despite mass production beginning this year, CATL predicts that the first sodium-ion battery-powered vehicles might not be launched until 2027.
Described as the first “large-scale mass-produced sodium-ion batteries” as well as a high-voltage application for passenger cars, CATL has also developed the batteries to be used for 24-Volt starter batteries for heavy-duty trucks.
Both batteries are said to work well at temperatures that range from minus 40 degrees Celsius to 70C.
Solid-state batteries have been heralded as the holy grail for EVs with charging speeds as quick as brimming a combustion car with fuel. Cheap, safe sodium-ion batteries with low carbon footprints will be another piece of the puzzle when it comes to mass adoption, allowing car-makers to finally price electric cars well below a petrol-powered equivalent.