Chinese battery manufacturer Gotion High-tech has launched an experimental production line for its Gemstone all-solid-state batteries, signaling continued momentum in the industry’s transition toward mass-producing advanced battery technologies by 2027.
Unveiled at its annual technology conference on May 17, the new facility has a designed capacity of 0.2 gigawatt-hours and is intended for early-stage validation and development. All core equipment used in the production line is domestically sourced, Gotion said.
Pan Ruijun, head of R&D at Gemstone, confirmed that the batteries have already been installed in vehicles and undergone road testing. “This means that the human imagination of this ultimate battery is finally within reach,” Pan said.
The Gemstone battery boasts an energy density of 350 Wh/kg, or 800 Wh/L, a 40% improvement over conventional lithium ternary batteries, according to the company. After a full year of testing, Gotion stated the new cells demonstrated a 150% increase in capacity compared to standard offerings, though specific figures were not disclosed.
The company highlighted safety enhancements, noting the cells passed a series of stringent tests, including puncture, thermal, overcharge, and crush resistance. Despite the technical progress, Gotion did not provide a mass production timeline in its latest update.
However, following the 2023 conference, Pan indicated that small-scale production and vehicle integration trials were anticipated to start in 2027, with full-scale production targeted for 2030.
Gotion currently ranks as the world’s sixth-largest EV battery supplier, holding a 3.5% share of the global market during the first quarter of 2025, according to data from SNE Research.