Dongfeng Motor plans to begin mass production and vehicle integration of its solid-state batteries in the second half of 2026, according to a regional government report. The new battery cells achieve an energy density of 350 Wh/kg, which could enable electric vehicles to exceed a driving range of 1,000 kilometers on a single charge.
Safety improvements are a key feature of the design. Unlike conventional lithium-ion batteries that use liquid electrolytes and carry a risk of fire under extreme conditions, Dongfeng’s solid-state versions employ a solid electrolyte to minimize combustion and explosion hazards. In internal tests, batteries remained operational after being compressed to 50 percent of their original thickness and showed no smoke or flames when exposed to temperatures of 170°C.
The company has chosen an oxide-polymer composite technology pathway, widely regarded in the industry for its mature supply chain and compatibility with existing manufacturing infrastructure. Dongfeng’s R&D team reports full in-house capability across electrode materials, solid electrolyte development and full pack assembly. A dedicated research and production campus now hosts laboratory validation, pilot lines and trial production facilities.
Performance in cold environments has also been demonstrated. In trials conducted in Mohe, China’s northernmost city, the solid-state battery retained more than 74 percent of its capacity at –30°C, supporting a driving range above 1,000 kilometers. The battery pack weighs approximately 30 percent less than current liquid-based counterparts, offering additional range without adding vehicle mass.
Dongfeng’s announcement comes amid a broader industry push. Other major Chinese automakers and battery producers have announced solid-state development targets between 2026 and 2027. In May 2026, Dongfeng established the Hubei Solid-State Battery Industry Technology Innovation Consortium, partnering with 18 universities and companies to accelerate research and scale-up efforts. The automaker is also pursuing next-generation fast-charging solid-state cells and higher-energy-density chemistries, with further advances expected by 2027.
In 2025, Dongfeng recorded total vehicle sales of 2.47 million units, including 1.05 million new energy vehicles, marking a 21 percent year-on-year increase. Its own-brand models accounted for over 60 percent of that volume. A solid-state battery pilot line is already in production as the company ramps up for full manufacturing.
Source: CarNewsChina
