Market and product

As global demand for energy storage systems and electric vehicles (EVs) continues to grow, sodium-ion battery technology is emerging as a promising alternative to conventional lithium-ion batteries. Benefiting from abundant raw materials, lower production costs, and superior performance in low-temperature environments, sodium-ion batteries are expected to play an increasingly important role in the energy storage market.

Cost and Resource Advantages

According to Argus Consulting, the commercialization of sodium-ion batteries is progressing faster than previously anticipated, creating growing competitive pressure on lithium-ion technology. This trend is becoming more evident as fluctuations in lithium salt prices gradually erode the cost advantage traditionally enjoyed by lithium-ion batteries.

Industry analysts note that sodium-ion batteries become economically attractive for mid- and low-range applications when lithium carbonate prices remain above 150,000 yuan per tonne (approximately US$21,600/t) over an extended period.

In recent months, lithium carbonate—the key raw material for lithium-ion batteries—has continued its upward price trend, reaching 160,000-165,000 yuan per tonne (ex-works) by the end of January 2026. The increase has been driven by delayed restarts at major lithium mines, temporary production cuts by domestic producers, and China's adjustment of export rebate policies for lithium-ion batteries, which prompted buyers to place orders earlier than usual.

Meanwhile, China's lithium supply remains heavily dependent on imports. In 2025, the country imported approximately 7.75 million tonnes of spodumene concentrate, while the price of 6% Li₂O spodumene concentrate surged nearly 150%, reaching US$2,000-2,400 per tonne CIF China.

By contrast, sodium is one of the most abundant elements on Earth and is widely distributed worldwide. Industry estimates suggest that global sodium resources are roughly 450 times more abundant than lithium. In addition, the raw material cost of manufacturing sodium-ion batteries is currently about 40% lower than that of lithium iron phosphate (LFP) batteries.

Well Suited for Large-Scale Energy Storage

Another key advantage of sodium-ion batteries is their excellent low-temperature performance. They are capable of retaining more than 90% of their capacity at temperatures as low as -40°C, making them particularly suitable for cold-climate regions and outdoor applications.

At present, because their energy density remains lower than that of LFP batteries, sodium-ion batteries are primarily used in backup power systems for telecommunications base stations, low-speed electric vehicles, and utility-scale energy storage projects.

However, industry experts believe that continued advances in battery materials and manufacturing technologies will significantly narrow the energy density gap over the next few years.
Argus Consulting forecasts that as the supply chain matures within the next three years, production costs will decline substantially. At an industry production scale of approximately 100 GWh, sodium-ion batteries could become around 30% less expensive than LFP batteries.

The consultancy expects sodium-ion technology to become the most significant competitor to lithium-ion batteries during this decade.

China Accelerates Industrialization

China is rapidly advancing the industrial development of sodium-ion battery technology.

Chinese company Zoolnasm has recently commenced operations at a 10,000-tonne-per-year cathode active material (CAM) plant for sodium-ion batteries in Meishan, Sichuan Province. The facility is regarded as the world's first industrial-scale production plant for sodium iron sulphate cathode materials.

Once fully completed, the site will have an annual CAM production capacity of 30,000 tonnes, supporting battery manufacturing capacity of approximately 5 GWh.

Meanwhile, several of China's leading battery manufacturers are accelerating the commercialization of sodium-ion technology.

CATL plans to mass-produce its Tianxing II sodium-ion battery, which offers an energy density of 175 Wh/kg for light commercial vehicles. This performance approaches that of the company's Shenxing Plus lithium iron phosphate battery, which achieves 205 Wh/kg.

According to CATL, the company aims to make sodium-ion batteries competitive with LFP technology in both production cost and energy density within the next three years.

At the same time, Ronbay Technology has announced plans to expand its sodium-ion battery cathode material production capacity to 100,000 tonnes in 2026, with a long-term target of 1 million tonnes by 2030.

In the energy storage sector, a 100 MW/200 MWh sodium-ion battery energy storage demonstration project in Honghu City has recently completed its acceptance inspection. The project is currently the largest sodium-ion battery energy storage facility under construction in China.

Industry analysts believe that, as supply chains mature and manufacturing capacity expands, sodium-ion batteries will play an increasingly important role in the global energy transition, particularly in grid-scale energy storage and applications where ultra-high energy density is not a critical requirement.