Sodium-Ion Batteries: How 175 Wh/kg Cells Open a USD 6.70 Billion Market
Updated: 4 days ago
Executive summary. Lithium-ion batteries power almost everything that runs on stored electricity, from phones to cars to grid storage. That dominance has a weakness: lithium, nickel and cobalt supply chains are concentrated, volatile and politically exposed. Sodium-ion batteries offer a different path. Sodium is abundant and cheap, the chemistry handles cold weather well, and the cells can be made on adapted lithium-ion lines. After years in the laboratory, the technology is reaching mass production. Strategic Revenue Insights estimates the global sodium-ion battery market at USD 1.83 billion in 2025, rising to USD 6.70 billion by 2035 at a 15.50 percent compound annual growth rate. Demand for sustainable and cost-effective energy storage, the shift to renewables, electric vehicle growth and carbon regulation are driving it. This article sets out five lessons from the battery makers, automakers and storage developers moving first, with takeaways for strategy, product, operations, channels and revenue.
The structure of the market shows where growth will land. Strategic Revenue Insights' Sodium-Ion Battery Market research covers layered oxide, Prussian blue and polyanionic chemistries and cylindrical, prismatic and pouch formats. It finds that energy storage is the largest application while electric vehicles are the fastest growing, and that utilities are the largest end user. Asia Pacific leads the market in 2025 and North America is expected to grow rapidly. The research names competition from established lithium-ion makers, lower energy density and raw material and geopolitical risks as challenges, and lists CATL, HiNa Battery, Faradion, Natron Energy, Tiamat, BYD, Peak Energy, Inlyte Energy, Zoolnasm and KPIT among the key companies.
The technology is crossing into mass production. CATL rates its Naxtra sodium-ion cells at up to 175 Wh/kg, comparable to lithium iron phosphate, and says they keep more than 90 percent of capacity at minus 40 degrees Celsius. CATL and Changan have launched what they describe as the first mass-production sodium-ion passenger vehicle, and CATL has announced plans for large-scale sodium-ion cell capacity by the end of 2026, according to company statements and industry reporting.
Why the Sodium-Ion Battery Market Is Entering a New Phase
Three structural forces are converging.
Energy density is now good enough. Earlier sodium-ion cells were too heavy for most vehicles. At around 175 Wh/kg, the best cells reach the range of lithium iron phosphate, which already powers many electric vehicles and most grid storage.
Supply security has become a strategy. Governments and automakers want batteries that do not depend on a few lithium, nickel and cobalt sources. Sodium can be sourced almost anywhere, and sodium-ion cells avoid cobalt and nickel entirely.
Grid storage needs cheap, safe, long-life cells. Storage paired with solar and wind is growing quickly, and for stationary use, weight matters less than cost, safety and cycle life. SRI's research identifies energy storage as the largest application.
These forces explain SRI's forecast of steady double-digit growth to 2035, with value concentrating in grid storage, entry-level electric vehicles and Asia Pacific production.
Five Lessons From the Companies Moving First
The battery makers and users turning these forces into advantage share a recognisable pattern. We have distilled it into five lessons, each followed by a takeaway for a specific leadership function.
Lesson 1: Compete on Cost, Safety and Cold, Not on Range
Sodium-ion will not beat high-nickel lithium-ion on energy density soon, and SRI's research lists lower energy density as a challenge. The companies moving first do not try. They target applications where cost per kilowatt-hour, safety, cycle life and cold-weather performance matter more than weight: grid storage, backup power, two-wheelers, city cars and commercial vehicles in cold climates.
That positioning lets sodium-ion grow alongside lithium-ion rather than fight it head on, often in hybrid packs that combine both chemistries.
"Sodium-ion does not need to win the range race. It needs to win the price, safety and winter race, and that is a very large market."
Takeaway on strategy. Position sodium-ion on cost, safety, cycle life and cold performance, and target storage, backup and entry-level mobility before premium vehicles.
Lesson 2: Pick the Chemistry for the Job
SRI's research covers three cathode families: layered oxides, Prussian blue analogues and polyanionic compounds. Layered oxides offer higher energy density for vehicles, Prussian blue offers low cost and fast charging, and polyanionic materials offer long cycle life and stability for storage.
The companies moving first match chemistry to application instead of betting on a single formula, and they invest in hard carbon anodes, which industry analysts identify as a supply bottleneck for sodium-ion scale-up.
Takeaway on product. Match cathode chemistry to each application, secure hard carbon anode supply and design hybrid packs that combine sodium-ion and lithium-ion where it helps.
Lesson 3: Reuse Lithium-Ion Manufacturing Know-How
Sodium-ion cells can be produced on equipment similar to lithium-ion lines, which lowers the capital needed to scale. The battery makers moving first adapt existing plants and processes, use their supply chain relationships and apply the quality systems they built for lithium-ion.
That is why established lithium-ion leaders such as CATL and BYD appear among SRI's key companies. Start-ups compete by focusing on specific chemistries and applications, often partnering with larger manufacturers to reach volume.
"The fastest way to build a sodium-ion gigafactory is to start with a lithium-ion one."
Takeaway on operations. Adapt existing lithium-ion lines and processes for sodium-ion, and partner with established cell makers to reach volume quickly.
Lesson 4: Win Utilities and Storage Integrators First
SRI's research identifies utilities as the largest end user and energy storage as the largest application. Storage integrators and utilities buy on lifetime cost, safety and bankability, and they place large, repeatable orders.
The companies moving first provide long warranties, third-party safety certification and performance data that lenders accept, and they work with storage integrators who package cells into systems. Clean energy developers that combine storage with other technologies, as described in how alkaline fuel cells are finding a resilient power market, are natural partners. Sodium-ion storage also pairs well with charging hubs that need grid support, covered in what 2.2 million fast chargers mean for the next build-out.
Takeaway on channels. Build bankable warranties and certifications, sell through storage integrators and utilities, and pair storage with charging and renewable projects.
Lesson 5: Asia Pacific Leads, North America Builds Local Supply
SRI's research identifies Asia Pacific as the leading region and expects rapid growth in North America. China dominates sodium-ion production and early vehicle adoption, while North American developers such as Peak Energy focus on grid storage, supported by policies that reward domestic supply.
The capabilities that decide who captures this demand are specific:
Positioning on cost, safety, cycle life and cold performance.
Chemistry matched to each application and secure hard carbon supply.
Manufacturing adapted from lithium-ion lines.
Bankable warranties and storage integrator partnerships.
Local production that meets regional supply rules.
Companies evaluating these competitive dynamics in greater detail can use SRI's Sodium-Ion Battery Market analysis to assess technology, application, form and end-user segments and the positioning of the leading battery makers.
Takeaway on market development. Scale with Asia Pacific supply chains while building local production and partnerships in North America and Europe to meet domestic content rules.
Where the Opportunity Is Concentrating
Value is moving toward grid storage, entry-level vehicles and local supply.
By application, energy storage is the largest segment while electric vehicles are the fastest growing.
By end user, utilities are the largest segment, with automotive demand growing.
By technology, layered oxide, Prussian blue and polyanionic chemistries each serve different uses.
By geography, Asia Pacific leads and North America is expected to grow rapidly.
At the Horizon: What to Watch Over the Next Three Years
Cost versus lithium iron phosphate. Whether sodium-ion cells fall below lithium iron phosphate on cost will decide how fast they take share.
Vehicle adoption. Sales of sodium-ion and hybrid-pack vehicles will show whether the chemistry moves beyond pilots.
Grid storage contracts. Large utility storage orders using sodium-ion will show bankability.
"The next phase of sodium-ion will be decided by the price per kilowatt-hour on utility contracts, not by laboratory records."
The Strategic Revenue Opportunity
For battery makers, the task is to scale and close the cost gap. For automakers, the opportunity is cheaper, safer packs for entry-level and cold-climate vehicles. For utilities and storage developers, the priority is lower lifetime cost and supply security. For investors, the signal is capacity, cost per kilowatt-hour and contracts.
Market intelligence turns these questions into decisions. Segment-level sizing shows where application and chemistry demand is concentrating, competitive analysis shows how battery makers are positioned, and regional analysis shows where policy and supply chains will pull growth first. This is the path from market signals to strategic insight to revenue impact.
Takeaway on revenue. Treat the sodium-ion battery market as four revenue pools: grid storage cells sold on lifetime cost, vehicle packs sold on price and cold performance, backup power sold on safety, and licensing and materials sold to other manufacturers. Each needs its own pricing model.
The Next Leg: Preparing for the Journey Ahead
The defining shift in sodium-ion batteries is that they are moving from laboratory promise to mass production. That changes where they are used, how they are priced and who supplies them. The companies moving first are not the ones claiming the highest energy density; they are the ones competing on cost and cold, matching chemistry to use, reusing lithium-ion know-how, winning utilities and localising supply.
The next three years will decide which makers become the default suppliers of non-lithium batteries. Decision-makers should invest in capacity and bankability and track cost, vehicle adoption and storage contracts. Companies evaluating growth opportunities in this market can use Strategic Revenue Insights' Sodium-Ion Battery Market report to assess market size, competitive dynamics, regional opportunities and strategic growth priorities.
Sources: Strategic Revenue Insights, Sodium ION Battery Market report (2026); CATL product statements (2025 to 2026).
Frequently Asked Questions
How big is the sodium-ion battery market?
Strategic Revenue Insights estimates the global sodium-ion battery market at USD 1.83 billion in 2025, rising to USD 6.70 billion by 2035 at a 15.50 percent compound annual growth rate. Energy storage is the largest application, and Asia Pacific leads the market.
What is driving growth in sodium-ion batteries?
Demand for sustainable and cost-effective energy storage, the shift to renewable energy, growth in electric vehicles, carbon reduction regulation and investment in storage projects are the main drivers. Abundant sodium supply and strong cold-weather performance also make the chemistry attractive.
How do sodium-ion batteries compare with lithium-ion?
Sodium-ion batteries have lower energy density than high-performance lithium-ion cells, but the best cells now approach lithium iron phosphate. They use abundant sodium, avoid cobalt and nickel, perform well in cold weather and suit grid storage, backup power and entry-level vehicles.
What are the main challenges for sodium-ion battery makers?
The main challenges are competition from established lithium-ion manufacturers, lower energy density and performance than lithium-ion, and risks from raw material supply disruption and regulatory or geopolitical change. Scaling hard carbon anode supply is also an important hurdle.
About the authors: This article was prepared by the Strategic Revenue Insights research team, which combines market intelligence, competitive analysis and strategic advisory for growth-stage, mid-market and enterprise organisations across the energy and power sector. Sector analyst: Rohan Mehta, Principal Strategist, Finance, Chemicals and Market Risk. Our market estimates combine primary research (interviews, surveys and expert panels) with secondary data (industry reports, databases and public disclosures); read more about how Strategic Revenue Insights works. To discuss this market with our analysts, contact our team.
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