Market
Who makes sodium-ion batteries?
CATL, HiNa, BYD and Faradion are prominent cell-technology names; Eleven Energy and BLUETTI are visible in UK end products. “Maker” can mean the cell developer, pack assembler or brand, so always ask which layer is being described.
Large-scale manufacturers
CATL says Naxtra will reach full-scale mass production by the end of 2026. BYD has invested in sodium-ion production, while HiNa has supplied early Chinese vehicle projects. The IEA says China holds nearly all current capacity and more than 95% of installed and announced 2030 capacity.
UK connections
Faradion developed sodium-ion intellectual property in Sheffield and is now owned by Reliance Industries. The Faraday Institution continues to fund UK research. Eleven Energy supplies home-storage systems through a UK distributor and installer network.
Read the claim carefully
A brand may buy cells, design the pack and write the battery-management firmware without manufacturing the active material or cell. That is normal. For support risk, identify the cell supplier, product warrantor, UK importer and installer rather than assuming one logo covers everything.
Questions answered
Is Faradion a UK company?
Its technology has Sheffield roots; the company was acquired by India’s Reliance Industries.
Who is the largest sodium-ion producer?
CATL is the largest battery maker active in sodium-ion, but output by sodium chemistry remains small beside lithium-ion.
Sources
- Sodium-ion battery momentum grows, but challenges remain — International Energy Agency, 17 February 2026.
- Strong performance — Faradion, checked 10 November 2026.
- Sodium-ion cell design research call — The Faraday Institution, June 2026.
- Galvani stackable sodium-ion battery — Eleven Energy, checked 10 November 2026.
Sources last checked 10 November 2026. Product availability can change.