Sodium-ion batteries are shaking up the energy storage world. As lithium supply chain headaches grow and raw material costs keep swinging, more businesses are betting on Na-ion battery technology. But which na-ion battery manufacturer should you actually be watching? We did the homework — here are our top 7 picks for 2025.

Why Na-Ion Batteries Are Booming in 2025

If you've been paying attention to the battery world lately, you've probably noticed sodium-ion batteries popping up everywhere. A sodium-ion battery (also called SIB or Na-ion battery) is a rechargeable battery that uses sodium ions (Na⁺) as charge carriers. Its working principle and cell construction are similar to lithium-ion battery types, with sodium replacing lithium as the intercalating ion. So why does that matter? Unlike lithium, sodium is abundant, particularly in saltwater. That means the raw materials for Na-ion batteries are cheaper, easier to get, and not locked up in just a few countries. At Highstar, we've been tracking and working with this tech for years, and we've watched it move from the research lab to actual production lines. Whether you're looking at ternary lithium batteries or our sodium-ion solutions, we're deep into next-gen battery chemistry — and Na-ion is picking up serious speed.

The numbers tell the story. The global sodium-ion battery market is projected to grow from USD 0.67 billion in 2025 to USD 2.01 billion by 2030, at a CAGR of 24.7%. On the cost side, a recent report from the International Renewable Energy Agency (IRENA) suggested that sodium-ion battery cell costs could drop to $40/kWh. That's a big deal when you compare it to LFP cells, which fell to new lows in 2025, as far as $70/kWh. If you've already checked out our guide to the top LFP battery cell manufacturers, you know how fierce that market is. Na-ion is about to make it even more competitive. Sodium-ion batteries also present several technical advantages, such as a broader range of operating temperatures, inherent safety features, potential for rapid charging, and extended cycle life.

But here's the thing — the tech is only as good as the company behind it. The sodium-ion battery market is characterized by a mix of global and regional players. Unlike the lithium-ion battery market, which is dominated by a few major conglomerates, the sodium-ion battery market is more fragmented, with both established players and startups contributing to its development. Not every na-ion battery manufacturer has the scale, quality control, or real-world track record you need. That's exactly why we put this list together. Whether you're a distributor, an OEM, or an ESS integrator looking for a sodium-ion battery supplier, knowing who's actually shipping product — and who's still just talking about it — will save you real time and money.

7 Best Sodium-Ion Battery Manufacturers to Watch

Here are the seven Na-ion battery manufacturers we think deserve your attention in 2025 and beyond. We looked at production capacity, tech specs, real-world deployments, and supply chain readiness.

1. CATL (Contemporary Amperex Technology Co., Ltd.)

No list of sodium-ion battery companies would be complete without CATL. CATL, the world's largest battery manufacturer, released its second-generation sodium-ion batteries and has confirmed plans for their commercial-scale deployment across multiple sectors starting in 2026. Their first-gen Na-ion cell hit an energy density of 160 Wh/kg. CATL launched a sodium-ion product line called Naxtra in 2025 and claims to have already started manufacturing it at scale. The specs on the second-gen cells are even more impressive — the energy density is 175 Wh/kg, approaching lithium iron phosphate (LFP) at 185 Wh/kg. It supports 5C charging and over 10,000 charge cycles. The Naxtra line also handles extreme temperatures. These products are designed to operate across a wide temperature range from -40°C to 70°C. At its supplier conference in December 2025, CATL said it plans to deploy its sodium-ion battery technology at scale across multiple sectors in 2026, describing expanded applications in battery swap systems, passenger vehicles, commercial vehicles, and energy storage. CATL's scale and R&D firepower make them the clear market leader in sodium-ion battery production right now.

2. BYD

BYD is the world's second-largest battery producer, and they're going big on Na-ion. BYD in 2023 invested $1.4 billion USD into the construction of a sodium-ion battery plant in Xuzhou with an annual output of 30 GWh. In 2024, BYD introduced the "MC Cube-SIB ESS," described as the globe's first high-efficiency sodium-ion battery energy storage system. The product boasts BYD's Long Blade Battery, offering an energy storage capacity of 2.3 MWh and improved safety. BYD began construction of its first sodium-ion battery plant in January 2024, targeting applications in electric vehicles, grid-scale storage, and industry. With their vertically integrated supply chain — from mining to finished EVs — BYD has the muscle to scale Na-ion battery production fast. If you're sourcing for grid-scale or commercial energy storage, BYD is a name you'll keep running into.

3. HiNa Battery Technology

HiNa Battery Technology Co., Ltd is a spin-off from the Chinese Academy of Sciences (CAS). It leverages research conducted by Prof. Hu Yong-sheng's group at the Institute of Physics at CAS. HiNa's batteries are based on Na-Fe-Mn-Cu based oxide cathodes and anthracite-based carbon anodes. HiNa has introduced three different sodium-ion battery cells with energy densities between 140 Wh/kg and 155 Wh/kg. By partnering with JAC, HiNa has incorporated these batteries into passenger cars, creating a test vehicle featuring a 25 kWh battery pack. That real-world milestone caught attention — HiNa Battery is putting sodium-ion batteries into low-speed EVs, and was named a 2025 Climate Tech Company to Watch. At the end of 2022, HiNa Battery initiated its first GWh-scale sodium-ion battery production line in Fuyang, Anhui province, China. The production line is part of a 5 GWh project and is being built in two phases. For a more research-driven Na-ion battery manufacturer, HiNa is hard to beat.

4. Faradion (Reliance Industries)

Faradion Limited is known as "the world's first sodium-ion battery company to commercialize the Na-ion technology." Based in the UK and now a subsidiary of India's Reliance Industries, Faradion holds a strong IP position. The company has built a strategic, extensive intellectual property portfolio encompassing 21 patent families. The company was founded on the belief that sodium-ion batteries are cheaper and safer than lithium-ion batteries, offering higher energy density and a wider operating temperature range. Their cells use oxide cathodes with hard carbon anodes and a liquid electrolyte. The first sodium-ion battery manufactured by Faradion was successfully installed at a trailhead in the Yarra Valley of New South Wales, Australia, in December 2022. With Reliance's deep pockets behind them, Faradion is building manufacturing capacity at the Dhirubhai Ambani Green Energy Giga Complex in India. They're a key player for the Asia-Pacific Na-ion battery market.

5. TIAMAT Energy

TIAMAT SAS is a new-generation battery manufacturer that traces its origins to the sodium-ion research task force (CEA, CNRS, and Collège de France). The company designs, develops, and manufactures sodium-ion battery cells for mobility and stationary energy storage.What makes TIAMAT stand out is speed. Its features include fast charging in 5 minutes, high power density ranging from 2-5 kW/kg, a long lifetime of 5,000+ cycles up to 80% of capacity, and a high level of safety. Their specialty is 18650-format cylindrical cells using polyanionic materials. TIAMAT recently secured €30 million to establish a factory capable of producing 5 GWh of sodium-ion batteries annually in France. For European buyers looking for a local Na-ion battery manufacturer with fast-charge capabilities, TIAMAT is a top contender.

6. Altris AB

Altris is revolutionizing the energy storage industry with its sodium-ion battery solutions. The company was established in 2017 and is headquartered in Uppsala, Sweden. Altris' sodium-ion batteries offer longer life cycles, flexible working temperatures, and enhanced safety. These batteries match the energy density of lithium iron phosphate (LFP) chemistry while utilizing similar development processes and production equipment. Their proprietary iron-based Prussian blue analogue cathode material is what sets them apart. Altris partnered with AB Sandvik Materials Technology to establish its first industrial-scale manufacturing facility in Sandviken, with a planned capacity of 2,000 tons annually — enough to support the production of 3 GWh of batteries. Altris has introduced a commercial-sized sodium-ion battery cell and is collaborating with Clarios for low-voltage automotive uses and Polarium for energy storage. Altris is one of the strongest European Na-ion battery manufacturers on the market today.

7. Highstar

And then there's us. Headquartered in Qidong City, Jiangsu Province, Highstar is a pioneering national-level high-tech enterprise in China, specializing in the R&D, production, and sales of secondary chemical power supplies. We focus on battery technology, covering material development, components, BMS, and power system integration, with products widely used in power tools, household appliances, telecom backup power, residential ESS, C&I ESS, power-side and grid-side energy storage, 2-wheelers, specialized vehicles, and other fields. Our sodium-ion battery products have been widely used and verified by our customers in many fields such as special vehicles, low-speed electric vehicles, home energy storage, backup power, and more. We are a forerunner in the innovation and practice of sodium electricity. We don't just sell cells — we carry out customized production according to customer needs and provide integrated solutions that combine battery cells with PACK. Additionally, we offer professional services such as appearance mold design, BMS customization, and more. Our sodium-ion batteries are built for safety, long cycle life, wide operating temperatures, and lower cost — everything today's market is asking for. We have professional testing laboratories that cover the entire lithium battery industry chain and TÜV-certified safety laboratories. If you're in the US or anywhere globally and need a na-ion battery manufacturer who can handle custom orders, scale production, and deliver end-to-end solutions, reach out to us — we'd love to talk.

Na-Ion vs. Li-Ion: How Do They Stack Up?

One of the most common questions we hear is: how do sodium-ion batteries actually compare to lithium-ion? Here's a side-by-side breakdown to give you the full picture:

Sodium cells reach 140–160 Wh/kg, roughly 30% short of LFP's 180–200 Wh/kg. That's the main trade-off. But for applications where size and weight matter less than cost and durability — think grid storage, telecom backup, e-bikes, and low-speed EVs — sodium-ion is already a solid pick. While sodium batteries may store roughly 30–40% less energy than a comparable lithium battery of the same size, they are generally safer to ship and store. And with CATL's second-gen Naxtra cells hitting 175 Wh/kg, the energy density gap is closing year after year. Sodium-ion is real and advancing — but in 2025 it's a complement to, not a replacement for, today's LFP and NMC mainstays.

How to Pick the Right Na-Ion Battery Supplier

Choosing the right na-ion battery manufacturer isn't just about who has the flashiest spec sheet. Here's what we think you should focus on when evaluating sodium-ion battery suppliers.

First, look at their real-world track record. Sodium-ion is still a relatively young technology on the commercial side. Some companies are still stuck in R&D, while others — like Highstar and CATL — are already shipping product that's been tested and verified in actual applications. Ask for reference customers, certifications, or case studies. CATL's sodium-ion battery products have passed China's latest national battery standard, GB 38031-2025, for electric vehicle traction batteries, making them the first sodium-ion batteries to achieve this certification. At Highstar, our products go through TÜV-certified safety labs before they reach your hands.

Second, think about what you actually need. Are you building a grid-scale energy storage system? A two-wheeler battery pack? A telecom backup solution? Different sodium-ion battery manufacturers specialize in different use cases. Some focus on high-energy cells for EVs, while others (like us at Highstar) offer end-to-end solutions — from cell to PACK to full system — plus BMS customization and custom form factors. Stationary energy storage contributes the highest market share, due to its wide applicability across various industries. Sodium-ion batteries excel at stationary storage due to their long duration and high discharge capability. If that's your target, pick a manufacturer with proven energy storage deployments.

Finally, consider supply chain stability and cost structure. The whole point of Na-ion is that it sidesteps lithium supply problems. Sodium is a readily available material since it is abundant in the earth's crust and seawater. This provides a consistent supply of the element with minimal price swings, giving it a considerable edge over lithium. But that advantage only pays off if your supplier has stable access to cathode materials, hard carbon anodes, and steady production capacity. Ask about lead times, minimum order quantities, and whether they can scale as your business grows.

FAQs About Na-Ion Battery Manufacturers

Can sodium-ion batteries replace lithium-ion?

Not entirely — at least not yet. Sodium-ion batteries currently have lower energy density than lithium-ion alternatives, which limits their use in high-performance electric vehicles and compact consumer electronics. But for grid-scale energy storage, backup power, low-speed EVs, and telecom systems, sodium-ion is already a real contender. CATL itself has said that sodium-ion and lithium-ion battery technologies are expected to develop in parallel. Most experts see Na-ion and Li-ion running side by side rather than one killing the other.

Are sodium-ion batteries safer than lithium-ion?

In a lot of ways, yes. SIBs have shown promising results in terms of thermal stability and reduced risk of leakage, especially with the development of solid-state electrolytes. A big safety bonus is that Na-ion cells can be discharged all the way down to 0V without damage, which makes them much safer to ship and store. However, safety largely depends on the battery's design, materials, and manufacturing quality. That's why working with a proven na-ion battery manufacturer matters so much.

How much do sodium-ion batteries cost compared to lithium-ion?

Given the abundance of sodium and its widespread availability, SIBs have the potential to be more cost-effective than lithium-ion batteries. Industry forecasts project Na-ion cell costs dropping to around $40/kWh by the late 2020s, while LFP packs hit about $70/kWh in 2025. However, the actual cost will depend on manufacturing processes, scale, and advancements in material science. As production ramps up at manufacturers like CATL, BYD, and Highstar, expect those costs to drop even faster.

Who is the largest na-ion battery manufacturer right now?

CATL holds that title. CATL, the world's largest battery producer, announced its second-generation sodium-ion battery in 2025 and launched a dedicated brand for it called Naxtra. BYD is close behind with a massive 30 GWh Na-ion plant under construction. But smaller, more specialized sodium-ion battery companies like HiNa, TIAMAT, Altris, and Highstar are making big moves in their respective segments — from energy storage to EVs to industrial applications.

What are the main uses for sodium-ion batteries?

Stationary energy storage accounted for 71.8% of the sodium-ion battery market share in 2025. That includes grid-scale batteries, solar and wind integration, and commercial or industrial backup power. The relative abundance and low cost of sodium make it a popular choice for a diverse range of applications, from data centers and electric vehicles to mobile charging piles and large-scale energy storage systems. As energy density keeps improving, you'll see Na-ion batteries show up in more passenger vehicles, consumer electronics, and beyond.