Geely Prepares 500 Wh/kg Solid-State Battery Targeting Diesel-Beating Performance
Chinese automaker plans pilot production of next-generation solid-state cells by 2027.
Geely Auto Group is developing a solid-state battery cell targeting 500 watt-hours per kilogram, according to the automaker's technology roadmap.
What Happened
Geely outlined its next-generation solid-state battery development at an industry event, presenting energy density targets of 500 Wh/kg for the new chemistry. The company indicated pilot production could begin around 2027, positioning the cells as a potential replacement for diesel powertrains in commercial and passenger vehicles alike. The automaker did not disclose specific vehicle applications or partnership agreements for the technology.
Why It Matters
A 500 Wh/kg solid-state cell would represent roughly double the energy density of current liquid lithium-ion batteries used in most EVs today, which typically range from 200 to 270 Wh/kg. Higher energy density translates directly to longer driving range without increasing battery pack weight or size. For fleet operators and consumers considering EVs as diesel alternatives, improved range and faster charging potential could accelerate adoption in segments where long-haul capability remains a barrier.
The Bottom Line
Geely joins a crowded field of automakers pursuing solid-state technology, including Toyota, QuantumScape, and Samsung SDK. While the 2027 pilot timeline aligns with industry projections for commercialization, scaling from laboratory cells to mass production has repeatedly proven challenging in battery development. Independent verification of Geely's claimed energy density figures was not immediately available.
