en.Wedoany.com Reported - The 10GWh sodium-ion battery production project of Yanchi County NAYUAN Technology, invested and constructed by Runda Green Investment (Ningxia) Energy Group Co., Ltd., officially broke ground at the Gaoshawo Chemical Industrial Park in Yanchi County, Wuzhong City, Ningxia Hui Autonomous Region. The project has a total investment of over 3.3 billion yuan, covers a planned area of 260 mu, and will build a full industry chain base integrating sodium battery R&D, cathode materials, hard carbon anodes, cell manufacturing, and PACK system integration.
Against the backdrop of the global "dual carbon" transition, issues such as scarce lithium resource reserves, high external dependence, and poor low-temperature performance have limited the large-scale development of the new energy industry. The reserves of sodium in the Earth's crust are hundreds of times greater than those of lithium, and it can be extracted at low cost from seawater or common sodium salts, making it considered a next-generation energy storage technology pathway. This sodium-ion battery project adopts a polyanionic cathode technology route. Through standardized extreme testing, multiple core performances have demonstrated differentiated advantages.
Project data shows that the comprehensive mass production cost is expected to be approximately 30% lower than mainstream lithium iron phosphate batteries, and the future levelized cost of energy storage systems can be reduced to below 0.35 yuan/kWh. In abuse safety tests such as overcharging, short circuits, and crushing, the batteries do not catch fire or explode. According to commercial battery test data from the journal Cell Reports Physical Science, the thermal runaway critical temperature of these batteries is significantly higher than that of lithium batteries, and the temperature rise rate after a short circuit is less than one-fifth that of traditional lithium batteries. The self-developed cell cycle life exceeds 15,000 cycles. Under grid energy storage conditions with two charge-discharge cycles per day, the battery can operate stably for 15 to 25 years. In low-temperature environments, the discharge efficiency is above 90% at minus 40 degrees Celsius, and the capacity retention rate reaches 93% at minus 20 degrees Celsius. In terms of charging, the battery supports a 6C rate and can be charged to 80% capacity within 10 minutes.
According to Wu Tongkai, a PhD from Nanjing University of Science and Technology and a representative of the project's technology R&D team, this project aligns with the national "dual carbon" strategy. It will integrate local wind and solar new energy resources in Yanchi, connecting the sodium-ion battery industry chain from raw materials to terminal integration. During the construction phase, the project will implement safety production and green manufacturing standards. Once completed, it is expected to become a benchmark for the sodium battery industry in the Northwest region.
In terms of industry, this project will help improve the new energy storage industry chain in Ningxia, driving the development of supporting industries such as sodium salt processing, equipment manufacturing, logistics operations, and waste battery recycling. In terms of people's livelihoods, the construction and operation of the base will create local employment opportunities, promoting the transformation of the new energy industry in Yanchi County and the entire region. After the project is put into production, sodium-ion batteries can be applied in fields such as household commuter vehicles, urban and rural buses, household energy storage, grid frequency regulation, and engineering equipment in high-altitude cold regions, reducing dependence on lithium mineral resources and enhancing the autonomy and controllability of the energy supply chain.
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