Sodium-ion batteries are commercializing with mass production in 2026. CATL in China is scaling it as a cheaper, safer alternative to lithium-ion using abundant sodium from salt. They are targeting grid and stationary energy storage first and more affordable/entry-level EVs or low-speed vehicles and should be lower cost than iron LFP.
CATL’s Naxtra reach ~175 Wh/kg energy density. Iron LFP jas 160–180 Wh/kg). Some Sodium ion prototypes near 200 Wh/kg. Cycle life often exceeds 10,000–15,000 cycles. They have strong cold-weather performance. Estimated 2026 cell pricing around $50–56/kWh. They have safety advantages include better thermal stability and lower fire risk
CATL has a 60 GWh multi-year sodium-ion deal for energy storage with HyperStrong and related partners. CATL has ~28 – 30 % market share. BYD is second place with near-term targets around 30–50 GWh/year. HiNa Battery Technology is third.
Other notable companies include Faradion (UK), Altris (Sweden), Tiamat (France), and Farasis.
Peak Energy (US) is the first dedicated U.S. grid-scale sodium-ion energy storage systems factory. They are in Sacramento, California. Factory is 183,000 sq ft and up to 4 GWh annual capacity. They have a ~$71 million investment. Production and shipments targeted for Q1 2027. They already have multi-GWh customer commitments. Passively cooled systems aimed at cost and reliability advantages for utilities/data centers.

Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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