Market, Cost, and Commercialization

BloombergNEF reported a 2025 global average lithium-ion pack price of $108/kWh, with LFP packs averaging $81/kWh. Stationary-storage packs averaged $70/kWh, while the China average across applications and chemistries was $84/kWh. These datasets cover different samples and are not a direct spread calculation, but they show how low mature LFP pricing has become.

The IEA reported in early 2026 that global sodium-ion production in 2025 was less than 1% of lithium-ion output, and current lithium prices were not high enough for sodium-ion to undercut LFP in most applications. The latest commercial sodium-ion cells reach about 175 Wh/kg versus up to 205 Wh/kg for LFP. Lower energy density means more cell material, structure, and space per kWh. Avoiding lithium and graphite and using aluminium on the anode side can reduce inputs, but hard-carbon pricing, early plant utilisation, yield, and depreciation still offset part of that advantage.

The first sodium-ion advantage may not appear as the lowest purchase price at room temperature. The IEA estimates that mature production could cost up to 30% less than LFP under scaled manufacturing and lower-cost material conditions, but this is not a current transaction price. A 2025 Nature Energy study of 6,048 technology and supply-chain scenarios found that more than 40% reached price parity with LFP by 2030, with an average parity period of 5.6±3.6 years. Near-term opportunities are more credible in very cold regions, for customers exposed to lithium or graphite volatility, and in projects that value usable cold-weather energy, life, and maintenance together.