Sodium-ion battery technology is entering the commercial production phase and emerging as an alternative to lithium-ion batteries, driven by supply chain diversification, strong low-temperature performance, and the potential for lower total cost of ownership. According to an analysis by Wood Mackenzie, supply agreements totaling more than 70 GWh are already in place.

The study, which examines markets in China, the United States, Germany, and India, identifies sodium-ion batteries as the most promising emerging alternative to lithium-based technologies for stationary energy storage. Leading manufacturers are expected to achieve cell-level cost parity with lithium iron phosphate (LFP) batteries by late 2026, while parity at the module and system levels is not expected until after 2030.

China is leading the commercialization of the technology. BYD plans to reach 30 GWh of sodium-ion battery manufacturing capacity, while CATL aims to exceed 1 GWh in sodium-ion battery shipments by the end of 2026.

Supply agreements for sodium-ion batteries are already in place in China, the United States, and Europe, while India remains in the early stages of commercial validation. For the 2026–2035 period, Wood Mackenzie estimates a learning rate of 18% to 20% in China, reflecting the greater maturity of its industrial supply chain.

Planned manufacturing capacity currently exceeds demand, although the growing number of supply agreements points to the technology’s gradual adoption in the market.

Sodium-ion batteries currently have higher upfront costs than LFP batteries. The global average stands at $229/kWh, compared with approximately $200/kWh for LFP batteries. However, Wood Mackenzie estimates that sodium-ion batteries could achieve a 21% lower total cost of ownership over a 20-year project lifetime.

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