GAC Group from China has commissioned a pilot production line for solid-state batteries at its development center. The production facility is designed to manufacture cells with a capacity of more than 60 ampere-hours for initial vehicle applications. Tests will serve as practical trials under real-world conditions.
Sulfide-based or polymer-dominated
Solid-state batteries (SSB) are considered potential successors to current lithium-ion systems because the technology promises higher energy density and improved safety performance. Despite intensive global development efforts, technical and economic costs remain high. GAC claims it has been working on the SSB technology since 2016. Currently, the company is pursuing two technical concepts: one with sulfide-based composite electrolytes and another with a polymer-dominated alternative.
“HYPTEC” to be found in vehicles from 2026
GAC states that the batteries produced on the new pilot line are based on a combination of high-loading solid-state cathodes and third-generation “sponge silicon” anodes made from advanced nano-silicon composites. This cell chemistry is expected to achieve a gravimetric energy density of more than 400 watt-hours per kilogram at pack level. GAC plans to use these batteries in vehicle models under the “HYPTEC” brand starting in 2026.
