Chinese battery materials specialist Ganfeng Lithium has reported progress in the development of solid-state batteries for electric mobility applications, including the start of small-batch production of a lithium-metal cell with an energy density of 500 Wh/kg and a cycle life milestone for its 400 Wh/kg battery platform.Image: Ganfeng LithiumAccording to an investor relations update, reported on by Chinese media, Ganfeng Lithium’s 10 Ah lithium-metal battery with an energy density of 500 Wh/kg has entered small-batch production. “The battery is the world’s first 10 ampere-hour (Ah) solid-state product to achieve the 500 Wh/kg energy density mark, setting an industry benchmark for the future commercialisation of lithium-metal batteries,” CN EV Post states.Moreover, the company’s 400 Wh/kg solid-state battery has exceeded 1,100 charge cycles and completed engineering validation.This comes only three months after the Chinese company announced that it had begun production of a semi-solid-state battery with an energy density of 650 Wh/kg. The start of the pilot production phase of all-solid-state battery packs was also announced at the time.The company is pursuing two parallel solid-state battery technology routes based on silicon-carbon and lithium-metal anodes. Ganfeng sees lithium-metal technology as a key route to higher energy density and faster commercialisation of next-generation batteries for electric vehicles and aviation applications. At the same time, the company is expanding its silicon-based battery portfolio with products offering energy densities ranging from 320 to 480 Wh/kg. According to Ganfeng, its 320 Wh/kg battery has already exceeded 1,000 charging cycles, while development of the 480 Wh/kg version is still ongoing.The different battery configurations are intended to address varying requirements for energy density, durability and application scenarios. Ganfeng identified premium electric vehicles, drones, eVTOL aircraft, robotics and consumer electronics as target markets.Ganfeng has long been one of the world’s largest lithium processors and supplies companies, such as Hyundai and Changan. It also works with Dongfeng. The latter has begun extreme-cold testing of vehicles equipped with 350 Wh/kg solid-state batteries, while Changan plans to start trial installations of 400 Wh/kg solid-state batteries during 2026.carnewschina.com, cnevpost.com