BYD confirms that solid electrolyte batteries have reached a “critical stage of development”, but at the same time makes it clear that the industry must not rely on just one technology.
The chief expert of the company’s development department, Lian Yubo, pointed out during the automotive industry conference in China that the development of solid electrolyte batteries is progressing, but there are still serious technical challenges. Among the key problems are the stability of ions and the growth of lithium dendrites, which make it difficult to move to mass production.
BYD batteries with solid electrolyte are entering a critical phase
It was emphasized that the focus must not be only on the cells, but on the entire system. This means harmonizing battery performance with real user requirements such as autonomy, durability, charging speed, safety and operation in different conditions.
At the same time, BYD clearly says that batteries with solid electrolyte are not the only solution. In parallel, the development of classic lithium-ion batteries with liquid electrolyte continues, which still have significant potential for improving energy density and overall performance.
The company’s plan foresees limited production of batteries with solid electrolyte around 2027, while mass production is not expected until around 2030. They will initially be available in premium models, including the Yangwang and Denza lines, before reaching mainstream use.
In addition, Sun Huajun previously emphasized that sulfide electrolytes bring greater stability and longer life compared to existing solutions, with potentially faster charging.
In parallel with the development of a new generation of batteries, BYD is already improving existing technologies. The new Blade Battery 2.0 and Flash Charging technology enable autonomy of over 1,000 km according to the CLTC standard, with extremely fast charging from 10% to 70% in just five minutes, even at extremely low temperatures.
All this confirms the company’s strategy to combine several technological directions in order to maintain an advantage in the electric vehicle market, where together with the company CATL it holds more than half of the global share, reports CarNewsChina.