Sodium electricity: Solid-state sodium-sulfur batteries with energy density of 1000Wh/kg will be mass-produced in 2025

Published: Apr 11, 2024 18:32 (GMT+8)

Save

At the "Invest in China" Germany Special Presentation event hosted by the Ministry of Commerce of China, a German expert team has developed a complete set of high-performance and high-security solid-state sodium sulfur battery automatic continuous production process after nearly two years of research and development. This process can achieve an energy density of over 1000Wh/kg and a theoretical load capacity of up to 20000Wh/kg for the negative electrode. The process combines Germany's traditional advantages in high vacuum, fully automatic, nuclear physics, and magnetic levitation fields, and introduces new concepts such as ion printing and porous current collection, enabling the fully automatic continuous production of sodium sulfur batteries in a full vacuum environment with low cost and high production capacity. It is expected to launch equipment prototypes and battery samples by the end of 2023, have mass production capabilities by the end of 2025, and plan to collaborate with industrial funds and battery-related companies to invest in building factories in China.

New Energy

Data Source Statement: Except for publicly available information, all other data are processed by SMM based on publicly available information, market communication, and relying on SMM's internal database model. They are for reference only and do not constitute decision-making recommendations.

For any inquiries or for more information, please contact: lemonzhao@smm.cn

For more information on how to access our research reports, please contact:service.en@smm.cn

Related News

Sep 30, 2026 09:55 (GMT+8)

[SMM Analysis] Sodium-Ion Batteries Targeted for "Coordinated Development" as Industrialization Advances

On 28 September, the Ministry of Industry and Information Technology and six other departments jointly issued the "15th Five-Year Plan for the Development of the New-type Battery Industry". This is China's first national-level special plan for the battery sector and the first time sodium-ion batteries have been written into a top-level national design for the battery industry.

Sep 30, 2026 09:55 (GMT+8)

Sep 29, 2026 10:08 (GMT+8)

[SMM Cobalt Morning Meeting Summary] Pre-holiday purchase willingness remains subdued; falling raw material costs drag down prices across the industry chain

At the beginning of this week, prices across the industry chain remained weak. After refined cobalt futures fell, traders raised their spot-futures price spread quotes, but downstream buyers continued to purchase only on a need-to basis. In the intermediate product market, there were almost no inquiries or transactions, with holders indicating prices above $17/lb while some buyers would only accept below $13/lb, widening the divergence. Cobalt sulphate, cobalt chloride, and Co3O4 prices continued to pull back, with downstream procurement subdued and lower raw material costs weakening price support. Cobalt powder enterprises also lowered their quotes, and high-priced inventory delayed restocking by cemented carbide enterprises. Ternary cathode precursors saw production schedules trend lower due to weaker nickel and cobalt salt prices and insufficient demand for some orders. Ternary cathode material prices fell along with raw materials, and cathode plants mainly consumed existing inventory. LCO demand showed no seasonal boost, and prices remained at risk of further weakness. Overall, pre-holiday stockpiling was limited, and the market is waiting for inventory digestion and demand improvement.

Sep 29, 2026 10:08 (GMT+8)

Sep 28, 2026 13:29 (GMT+8)

About 3 billion yuan! China BAK New Energy’s 12 GWh sodium-ion battery project lands in Nanjing, Jiangsu

The newly built production line will enable large-scale manufacturing of 32140-series sodium-ion battery cells, continuously iterate and optimize cell performance, and drive sodium-ion batteries from small-batch sampling to large-scale commercial application, providing the market with cost-effective energy storage and power battery solutions beyond lithium batteries.

Sep 28, 2026 13:29 (GMT+8)