Gotion accelerates solid-state batteries for VW EVs with 1,000 km range

Gotion tests solid-state batteries in VW cars, with CLTC range up to 1,000 km, and advances toward scale production with performance and extreme temperature improvements.

Volkswagen and its supplier Gotion High Tech are advancing in the race for future batteries, with solid-state battery tests in EVs promising up to 1,000 km of range under the CLTC cycle.

The move comes in the context of a long-standing partnership: in 2020 VW invested about €1 billion to obtain 26% of Gotion, consolidating it as the Chinese company's largest shareholder.

Key milestones and what to expect

• Specifications and supply: Gotion will be responsible for supplying LFP and other chemistries, including solid-state batteries, for VW Group vehicles, including under the Audi brand.
• Pilot line: A 0.2 GWh pilot production line delivered a 90% yield in May, signaling progress toward industrial scale.
• Production consolidation: Gotion disclosed that the solid-state GEMSTONE line is moving toward mass production, with a planned capacity of 2 GWh and the design virtually complete, all developed in-house with over 30 patents.
• Technical improvements: At an event last year, the 2025 iteration showed a 60% improvement in sulfide electrolyte conductivity, a 150% increase in capacity per cell, and a 90% reduction in stacking pressure.
• Performance and operation: The GEMSTONE battery achieved an energy density of 350 Wh/kg and 70 Ah per cell, with vehicle testing already underway. The manufacturer claims a range of 1,000 km per charge is feasible and that the batteries operate between -40°C and 80°C.
• G-Yuan: The G-Yuan quasi-solid-state line is expected to deliver an energy density of 300 Wh/kg, supporting a range exceeding 1,000 km.
• Sector overview: China is rapidly advancing with solid-state batteries, with several automakers already testing or planning to start small-series testing by 2026, with mass production expected around 2030.

Market, technology, and production are aligning so that the advancement of solid-state batteries is not just a laboratory promise, but a practical reality for EVs in the coming years.

What do you think solid-state batteries will mean for electric vehicles in the coming years? Leave your opinion in the comments below.