https://www.electrive.com/2025/02/17/byd-has-already-produced-its-first-solid-state-cells/ * Newsletter * Videos * Conference * Media kit * Spanish * electrive deutsch electrive.comthe industry's leading emobility media All categories All categories * Fuel Cell * Off-Highway * Two-Wheeler * Politics * Air * Data * Water * People * Autonomous Driving * Automobile * Infrastructure * Battery * Commercial Vehicles * Fleet * Events * Studies * Automobile * Infrastructure * Battery * Commercial Vehicles * Fleet All categories All categories * Fuel Cell * Off-Highway * Two-Wheeler * Politics * Air * Data * Water * People * Autonomous Driving * Events * Studies * Newsletter * Videos * Conference * Media kit * Spanish * electrive deutsch Logo Battery BYD has already produced its first solid-state cells Chinese car and battery manufacturer BYD apparently already produced its first solid-state cells last year. The source for this is not an anonymous informant, but the company's Chief Technology Officer. However, BYD does not expect series production in the near future. [svg] Image: BYD By Carla Westerheide 17.02.2025 - 13:00 * BYD * Batteries * Solid-state * + X + LinkedIn + Facebook * * 5 According to Chinese media, Sun Huajun, CTO of BYD's battery business, stated at a forum event on solid-state batteries that the company had already produced its first solid-state cells with 20 Ah and 60 Ah on its pilot production line in 2024. The portals CN EV Post and Car News China reported on this based on a video recording of the presentation. According to the battery business CTO, BYD expects to start "mass demonstration" of solid-state batteries around 2027. However, he did not provide any information on the number of prototype cells produced to date. And even after the demonstration applications, there are no plans to start series production in the near future: A truly large-scale introduction of solid-state batteries could possibly only take place after 2030, Sun is quoted in the reports. Sun also does not expect the technology to be used by its competitors any earlier than this. "Looking at the industry as a whole, different players are making about the similar progress," Huajun said. In fact, Wu Kai, Chief Scientist at CATL, stated at an event in April 2024 that battery market leader CATL plans to produce the first solid-state cells in small quantities in 2027 - similar to BYD. However, there will still be problems with producing large quantities, including in terms of costs, according to Wu. In the technical presentation, Sun also announced that BYD is focussing on sulphide electrolytes in the development of solid-state cells - apparently driven by "cost and process stability considerations." According to the BYD manager, the costs for solid-state cells with sulphide electrolytes could theoretically reach a comparable level to today's NCM cells with liquid electrolyte level of scale of use. However, the quantities are still too small - especially for sulphide electrolytes: "It doesn't really make a lot of sense to talk about cost in the absence of volume." Other technology paths for solid-state cells are oxides and polymers. According to a report from November 2024, CATL is also said to have opted for sulphides. In theory, replacing the current liquid electrolyte in a battery cell with a solid offers a number of advantages. As the flammable liquid electrolyte is no longer required, solid-state cells are generally safer. At the same time, higher energy densities and more power are possible, resulting in a longer range and shorter charging times. Although many companies and institutions have been working on the technology for years due to these advantages, battery cells with 'real' solid electrolyte are still very rare - as BYD's timetable also suggests. A semi-solid, gel-like electrolyte, also known as a solid, is already being used in some cases. However, this is actually a so-called 'semi-solid-state battery' (SSSB), while BYD and CATL use 'all-solid-state batteries' (ASSB) with an actual solid electrolyte. BYD is best known today for its blade batteries with LFP cell chemistry. These lithium iron phosphate cells are considered to be more robust and cheaper than cell chemistries based on nickel and cobalt, but generally have a lower energy density. In its report, Car News China quotes Sun as well as Lian Yubo, BYD's chief scientist, chief engineer for motor vehicles and dean of the Automotive Engineering Research Institute. ""Solid-state batteries will be mainly used in high-end models, empowering each other with lithium iron phosphate batteries, and used in vehicles of different levels," said Lian, who expects LFP cells to be used for at least another 15 to 20 years. cnevpost.com, carnewschina.com Tags * BYD * Batteries * Solid-state * battery cells * Battery research * China 5 Comments about ,,BYD has already produced its first solid-state cells" JohnH 18.02.2025 um 08:24 Toyota still say they are on track for solid state batteries to be launched in 2026. Someone is going to lose face. Reply Peter Morris 19.02.2025 um 23:21 Toyota announced all their models would be solid state in 2018, 2020, 2022... etc. They have never announced what chemistry the cell would use, or shown a prototype. I'm afraid toyota has zero credibility on this one. My personal belief is that toyota vehicles will get solid state batteries when someone agrees to sell them some. Remember, despite claiming their current cells are the best technology, they will be using BYD batteries as of next year.... and not their most advanced batteries at that. Reply reon 22.02.2025 um 08:59 no no no no working cars that one car buy really just not to be belived byd is a battery company , Toyota is not . Reply DancA 19.02.2025 um 11:43 How does BYD and CATL compare to QuantumScape ? I read they appeared to be ahead in terms of development with its patented lithium-metal anode design and have initiated low-volume production and OEM testing of its solid-state cells. They are aiming to achieve gigawatt-hour scale production by 2025, leveraging its newly commissioned 'Cobra' heat treatment system while BYD and CATL plan to commence mass production of solid-state batteries by 2027. Reply TYDollaSign 20.02.2025 um 10:30 Toyota just mentioned this week they will be buying one of General Motors Lithium Ion plants that is in co operations with LG Electronics .. So I assume the plan fell through with them using batteries from BYD Reply Leave a Reply Cancel reply Your email address will not be published. Required fields are marked * [ ] Name *[ ] E-Mail *[ ] I agree with the Privacy policy[ ] [Post Comment] Also read [svg] Battery Rock Tech and Arcore launch lithium subsidiary NewCo 22.02.2025 [svg] Battery VW China seeks alliance with battery giant CATL 21.02.2025 [svg] Automobile BMW introduces sixth drive generation 21.02.2025 English English Spanish English English Spanish electrive has been following the development of electric mobility with journalistic passion and expertise since 2013. As the industry's leading trade media, we offer comprehensive coverage of the highest quality -- as a central platform for the rapid development of this technology. With news, background information, driving reports, interviews, videos and advertising messages. * Automobile * Air * Infrastructure * Water * Battery * Off-Highway * Commercial Vehicles * Politics * Fleet * Data * Fuel Cell * People * Two-Wheeler * Newsletter * Media kit * Contact * Team * Imprint * Privacy Policy * Cookie Preferences * LinkedIn * Facebook * YouTube * RSS * Instagram * Bluesky * Contact * Team * Imprint * Privacy Policy * Cookie Preferences (c) 2025 electrive.com electrive deutsch