SVOLT is currently developing a second-gen 400 Wh/kg semi-solid-state cell and plans to complete 450 Wh/kg pouch validation by 2028.
SVOLT CEO Yang Hongxin said at the 2025 World Power Battery Conference that the company’s first-generation semi-solid-state battery will begin production ramp-up and enter full-scale mass delivery in 2026.
Yang noted that ternary lithium batteries remain mainstream in premium and emerging market EV segments, but thermal runaway incidents involving ternary chemistries account for nearly 70% of EV fire accidents, which has intensified pressure on safety.
He emphasized that semi-solid-state (solid-liquid battery) technology is emerging as a critical solution to improve thermal stability in ternary cells.
By introducing solid-state electrolytes that are non-flammable and non-corrosive, the technology enhances safety without sacrificing performance or increasing manufacturing cost.
SVOLT has built a dedicated 2.3 GWh production line for semi-solid-state batteries and completed development of its first-generation 270 Wh/kg prismatic cell, which is currently advancing through C-sample pilot production.
The product has secured orders from a major European EV brand and has been designated for a central state-owned enterprise eVTOL program.
In parallel, the company is developing a second-generation semi-solid-state cell targeting 400 Wh/kg and plans to complete technology validation for a 450 Wh/kg pouch cell by 2028.
Industry forecasts point to a commercial breakthrough period for hybrid solid-liquid cells. According to the China Society of Automotive Engineers’ “2026 China Top 10 Automotive Technology Trends,” deployment of hybrid solid-liquid batteries is expected to reach a scale of 100,000 vehicles by 2026.
Conventional liquid batteries are approaching an energy density ceiling near 300 Wh/kg, while mass production of full solid-state cells exceeding 400 Wh/kg remains three to five years away. This positions the coming period as a key commercialization window for semi-solid-state technologies.
Data from the China Automotive Battery Innovation Alliance (CABIA) shows that SVOLT ranked seventh in China’s total power battery installations in October, reaching 2.27 GWh, with its ternary battery installations ranking third.
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