Gotion High-Tech, backed by Volkswagen, is scaling its Jinshi solid-state battery technology. The company aims for an energy density exceeding 400 Wh/kg and a production cost of approximately $150 per kWh. The cells utilize a sulfide-based solid electrolyte and have successfully passed puncture and high-temperature safety tests without ignition or smoke.
The targeted energy density of 400+ Wh/kg is roughly double that of current LFP cells, which typically offer 160–200 Wh/kg. This density could allow for a 140 kWh battery capacity within the dimensions of a standard modern traction pack. While the cost is higher than LFP, it is comparable to premium nickel-based batteries.
Gotion has designed a pilot production line with an annual capacity of 2 GWh to refine mass manufacturing processes. The company faces competition from firms like ProLogium, supported by Mercedes-Benz, which has reported densities of 381 Wh/kg, as well as BYD. Solid-state battery development is a key part of China's industrial plan through 2030.
