SVOLT Starts Series Production of 100 kWh Semi-Solid-State Packs

"Semi-solid-state" means the cell still holds liquid electrolyte alongside a solid one. China's standardized term is hybrid solid-liquid, CnEVPost notes, chosen to avoid confusion with all-solid-state cells that use no liquid. Yang said hybrid solid-liquid batteries are a long-term mainstream route, particularly for ternary (nickel-manganese-cobalt) cells, rather than a stopgap before all-solid-state.

What SVOLT has and has not disclosed

The reports of the announcement give no energy density for this pack, no nickel content for the cathode and no cell format. Earlier company figures may relate to it but are not tied to it. At its Jan. 13 Battery Day, ITHome reported, SVOLT planned a 100 kWh semi-solid battery at 188 Wh/kg with peak 6C charging, without saying whether that is a cell or pack figure. It also planned a medium-nickel semi-solid cell at 245 Wh/kg for October 2026. On July 16 it showed a hybrid solid-liquid 6C cell above 150 Ah at 233 Wh/kg, EnergyTrend reported.

On customers, Yang said the pack has secured nominations from multiple automakers and that the vehicles will be named soon. CarNewsChina expects GWM's Wey V8X to be among the first, but that is the outlet's expectation, not a statement from SVOLT or GWM. Changzhou is the only site named.

Where it sits

SVOLT said in May that the 100 kWh version would reach large-scale production by September, with costs it expected to match liquid-electrolyte lithium-ion cells, so the first batch arrived after that deadline. CnEVPost's report of the Oct. 26 announcement gives no price or cost figure. CarNewsChina reports that SVOLT aims to move all its ternary cells to hybrid solid-liquid by the end of 2027 and to launch a third generation in 2028.

SNE Research data cited by CnEVPost put SVOLT's global EV battery installations at 22.0 GWh in January-August 2026, up 39.3% from a year earlier, ninth with a 2.6% share. Elsewhere in China's solid-state field, EVE Energy's Oct. 20 ceremony in Chengdu also covered a solid-liquid hybrid cell, but as Voltgrid reported, no capacity or energy-density figures were given for it.

What is not confirmed yet

The customers and vehicles are unnamed, and the first batch size and line output are undisclosed. CnEVPost notes the announcement did not specify the test conditions behind the 12-minute claim, and none of the reports cites independent test data for the pack or its 3,000-cycle figure. Battery-news.de relayed media reports in November 2025 that SVOLT's first-generation 140 Ah semi-solid cells would go into future BMW Mini models; no report of the Oct. 26 announcement links this pack to Mini.