- The new battery delivers 400 Wh/kg energy density.
- Mass production is planned to begin next year.
- BYD, SAIC, GAC, and CATL are developing similar packs.
Solid-state batteries have been “just around the corner” for what feels like an entire EV generation. Now, they might actually be arriving. In the third quarter of this year, China’s Changan will begin fitting its new solid-state packs to robots and EVs, with full mass production slated for 2027.
According to Chinese media, Changan claims its new solid-state battery has an energy density of 400 Wh/kg, and EVs using it will be able to travel upwards of 932 miles (1,500 km) on a single charge. While you could argue that this much range borders on excessive, it would make future Changan models far better suited to long road trips through remote areas where charging infrastructure remains sparse.
Breakthrough Energy Density
The pack is called the Golden Bell. Aside from being very energy-dense, it is said to be 70 percent safer than a conventional EV battery and, because this is 2026, it also uses artificial intelligence for remote diagnostics. Smarter batteries, apparently, are part of the plan.
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Changan will build these units under its new Jingzhongzhao solid-state battery brand. The company intends to manufacture fully solid-state packs while also producing liquid and semi-solid-state batteries that rely on a liquid electrolyte.
China’s Solid-State Push
It is not alone. Other Chinese brands are also edging closer to making solid-state batteries mainstream. Earlier this year, Dongfeng Motor began testing its own solid-state battery in extreme cold weather. It has an energy density of 350 Wh/kg and a claimed range exceeding 620 miles (1,000 km). It also plans to roll them out in production cars this year, aiming for September.
BYD, Chery, SAIC, GAC, and CATL are all chasing similar breakthroughs. So are legacy names such as Mercedes-Benz, VW, BMW, Toyota, Nissan, Hyundai, and Honda. After years of promising headlines and laboratory milestones, solid-state batteries may finally be edging toward something tangible. If they deliver on even half of these promises, combustion engines will have one more reason to feel nervous.
Sources: Changan, Carnewschina
