Western Sodium-Ion Battery Race Falls Behind China with Vast Capacity Gap
nashnova research
China's planned sodium-ion battery capacity tops 400 GWh; the rest of the world combined has roughly 11 GWh. From mass production to patents, the West has fallen comprehensively behind on the very technology meant to break its dependence on Chinese lithium supply chains.
How wide is the capacity gap?
CRU Group data shows China's operating and planned sodium-ion gigafactory capacity exceeds 400 GWh. Outside China, the combined total is about 11 GWh.
This means → China holds roughly 36 times the capacity of the entire rest of the world — not a lead, but a different order of magnitude.
Max Reid, CRU's head of battery costs, says the $100 million-plus supply-chain investment each factory requires "is almost nowhere to be seen" outside China.
What makes sodium-ion batteries attractive?
Sodium-ion batteries — which use saltwater-based solutions instead of lithium — draw on raw materials available almost everywhere, including seawater. They bypass the graphite and cobalt supply chains China dominates.
They perform more stably in extreme temperatures, are safer, and suit small vehicles, grid storage, and data centers that need fast backup power.
Early tests of CATL's sodium cells show 6% faster charging than lithium at −20°C and 21% faster at −10°C. In plain terms = the colder it gets, the bigger sodium's edge over lithium.
What is driving China's lead?
Changan Auto will launch the world's first mass-produced EV fitted with a CATL sodium-ion battery this month. This means → sodium-ion has crossed from lab to consumer market.
CATL is also the most active filer of sodium-ion patents in 2025; a Volta Foundation report says China overall "dominated" the year's sodium-ion patent activity.
This reflects a Chinese advantage that runs beyond sheer capacity — it spans the full loop from patents → mass production → vehicle integration.
What is happening to Western players?
U.S.-based Natron Energy, backed by commodities trader Mercuria, filed for bankruptcy last year — shortly after announcing a gigafactory plan.
Bedrock Materials, incubated at Stanford and co-founded by former Tesla engineers, has also shut down.
Projects still in progress include a GM–Peak Energy partnership, investment by France's Tiamat Energy, and a German Moll Batterien plant targeting Europe's first industrial-scale sodium-ion production next year — but all remain dwarfed by China's scale.
When will sodium-ion reach cost parity with lithium?
UBS forecasts sodium-ion could reach cost parity with lithium-ion by 2027.
CRU estimates sodium-ion cell prices may fall by as much as 30% by 2030.
This means → the cost inflection point is close, but if the West does not invest in factories now, the capacity gap will only be wider when prices converge.
Can the West still catch up?
Christer Bergquist, CEO of Swedish sodium-ion materials firm Altris, puts the question bluntly: major economies must decide whether they are willing to rely on "batteries from a potential adversary."
His follow-up: will Europe keep buying from China, or start building its own value chain now?
In plain terms = sodium-ion was supposed to free the West from lithium-chain dependence on China. If China dominates sodium-ion too, the "alternative route" is just the same dependence under a different name.
市场有风险，内容仅供研究参考，不构成投资建议。