Gotion High-Tech Begins Pilot Production of All-Solid-State Batteries in China

Gotion High-Tech, a major Chinese battery manufacturer backed by Volkswagen, has commenced pilot production of its all-solid-state Gemstone batteries at a newly opened experimental line with a 0.2 GWh annual capacity and a 90 percent yield rate. These batteries, which use a fully solid electrolyte and locally manufactured core equipment, offer significant improvements in energy density—350 Wh/kg and 800 Wh/L, roughly 40% more than conventional lithium-ion batteries—and have shown a 150% increase in capacity after a year of validation, though specific updated figures were not disclosed. Gotion has completed mandatory safety tests for these batteries, including nail penetration and overcharge resilience, and has started vehicle road testing of trial products. While the company is working to optimize production and performance this year, it acknowledges that mass production remains several years away, with small-scale production targeted for 2027 and mass production expected by 2030. Gotion is simultaneously developing semi-solid-state batteries, such as the G Yuan model with a 300 Wh/kg energy density and over 1,000 km vehicle range, which it believes will dominate the market in the near term due to current technological and supply chain challenges facing fully solid-state batteries. Industry experts agree that all-solid-state technology represents a significant technological leap but requires overcoming substantial research, production, and supply chain hurdles before widespread commercialization.