Learn
What is a sodium-ion battery?
How sodium-ion batteries work, what they are made from and where they make practical sense.
Na
New to sodium-ion?
Learn how the chemistry works, where it helps and why it will complement rather than simply replace lithium.
Start with the plain-English guide →Buying in the UK?
One home-storage maker reports shipping. Other listings are unavailable or still in testing. The labels matter.
See the UK buying guide →Following the market?
CATL targets full-scale Naxtra production by the end of 2026, but no mainstream sodium car is confirmed for UK sale.
Read the November update →Essential guides
Compare
Sodium-ion vs LFP: the practical comparison
Compare sodium-ion and lithium iron phosphate batteries for homes, power stations and vehicles.
Buy
Sodium-ion home batteries in the UK
What is genuinely available, what remains in testing, and how to assess a UK installation.
Safety
Are sodium-ion batteries safe?
What sodium-ion chemistry changes—and does not change—about battery fire and electrical safety.
Applications
Sodium-ion cars: models, range and UK outlook
Which sodium-ion cars exist, what CATL has announced and why UK buyers cannot order one yet.
Applications
Sodium-ion batteries for grid storage
Why stationary storage may scale before sodium-ion EVs, with current project evidence.
The honest state of sodium-ion
It is commercial, but not mature.
UK home installations and portable products now exist. Global output remains tiny beside lithium-ion, manufacturing is concentrated in China and many product announcements have not become UK stock.
Our rule: “Announced” stays announced until a primary source shows delivery. We publish checked dates, link the evidence and correct the tracker when status changes.
Browse all topics
Learn
Start with the fundamentals, history and the claims worth questioning.
Compare
Side-by-side chemistry comparisons without declaring a universal winner.
Buy
UK availability, installation and a checklist for an early-market purchase.
Safety
Charging, fire, cold weather and maintenance explained carefully.
Science
Cathodes, hard carbon, electrolytes, density and efficiency.
Applications
Where sodium-ion may work in homes, vehicles, industry and portable power.
Market
Manufacturers, cost and the developing supply chain.
Sustainability
Materials, lifecycle impacts and end-of-life responsibilities.
Updates
Dated market snapshots that distinguish delivery from announcements.