Byd prepares revolutionary batteries: demonstration in 2027 of its prowess
However, the large -scale adoption of this technology is not envisaged before 2030. Sun Huajun specified it during this speaking whose video could be consulted by Cnevpost. According to him, the progress made by the various market players is quite similar.
Byd prepares batteries that promise a lot
Byd, the world leader in new energy vehicles (NEV) and second largest manufacturer of power batteries, recorded an installed capacity of 153.7 GWh in 2024. A global market share of 17.2 %. The Chinese company is behind Catl and its 37.9 % market share.
Wu Kai, chief scientist of Catl, said during an event in April 2024 that the company aims for a limited production of fully solid batteries from 2027. But large -scale production faces challenges, especially in terms of cost .
Man also specifies that liquid lithium-ion batteries are able to reach an energy density of 350 Wh/kg. However, it will be difficult to go beyond while the solid batteries reach 500 Wh/kg.
In November 2024, Latepost reported that Catl begins the production of 20 Ah samples. The company favors sulfide -based electrolytes for its fully solid batteries. Sun Huajun claims that Byd adopts this approach to the costs and stability of the process.
Two other main technological routes exist for fully solid batteries: oxide -based electrolytes and polymer electrolytes. The Chinese start-up Talent New Energy, specializing in solid oxide-based electrolyte batteries, announced in April 2024 the manufacture of solid battery cells with an energy density of 720 Wh/kg.
BYD's research on fully solid batteries began in 2013 with a first phase of exploration of technologies and materials. In 2016, the Chinese company checked the technical feasibility of these batteries with prototypes of flexible battery of very low capacity, less than 1 Ah.
Then, in 2023, byd began the validation of the industrial feasibility of these batteries with the design of cell systems, materials and various technologies. In 2024, prototypes of solid cells with a unit capacity of 20 Ah and 60 Ah have already been produced on the assembly line.
The cost of solid batteries will not be a long -term obstacle according to Sun Huajun. In the sulfide -based approach, it is always ternary materials, including nickel and cobalt, which most influence the cost.
The technical director of the company's battery division specifies that the high costs of sulfide electrolytes were due to still low production volumes. “It is not really relevant to talk about costs as long as production does not reach a certain scale,” he said.
As solid batteries are democratic, the cost will theoretically reach the same level as that of liquid ternary batteries, according to Sun Huajun.
