The Chinese lithium producer Ganfeng Lithium has started producing solid-state batteries with an energy density of 500 Wh/kg on a small scale. This information was released by the Chinese company on Wednesday in minutes from an investor meeting. The cell has a capacity of 10 Ah and, according to Ganfeng, will be the first solid-state product of this size to reach 500 Wh/kg.
400 Wh/kg cell reportedly completes validation
In parallel, Ganfeng reports progress on a solid-state cell with 400 Wh/kg. It reportedly exceeded 1,100 charge cycles in testing. Furthermore, technical validation has been completed. The company sees potential for larger-scale applications.
The Chinese lithium group is pursuing two development paths for solid-state batteries. In addition to lithium-metal anodes, Ganfeng is working on silicon-carbon anodes. The goal is to overcome hurdles in industrialization and accelerate the mass production of high-energy density batteries.
Progress is also being made with silicon-based anodes. Ganfeng cites a product range of 320 to 480 Wh/kg for these anodes. A 320-Wh/kg cell has reportedly achieved over 1,000 cycles. The company claims that the technology of the 480-Wh/kg cells is at the forefront of the industry.
Ganfeng identifies high-end electric vehicles, the low-altitude economy, robotics, and consumer electronics as target markets. These high-energy batteries are already being used in Aerofugia Technology’s AE200-100, Geely’s eVTOL division.
Sources:
https://cnevpost.com/2026/05/21/ganfeng-starts-small-scale-production-500-wh-kg-solid-state-batteries/
https://static.cninfo.com.cn/finalpage/2026-05-20/1225321744.PDF
