Sodium-ion batteries are accelerating their entry into the market, marking a significant step forward in energy storage technology. This advancement promises to enhance the performance and safety of battery systems, making them more competitive with traditional lithium-ion batteries. As research and development continue, we can expect to see wider adoption of sodium-ion batteries in various applications, from portable electronics to large-scale energy storage solutions.

At the beginning of 2026, a quiet revolution in the battery industry is underway.

On February 5th, Changan Automobile partnered with CATL to announce a sodium-ion strategy, with the “world’s first mass-produced sodium-ion passenger vehicle” set to hit the market mid-year. As CATL’s “exclusive partner” in the sodium-ion strategy, this deep collaboration not only signifies a strategic alliance at the market inflection point in 2026 between two industry giants but also marks the official end of a decade-long laboratory incubation for sodium batteries, with mainstream passenger cars now entering the market’s deep waters as primary players.

And this is just the beginning of the sodium-ion revolution. Wall Street Insights has also learned that CATL hopes sodium-ion batteries can stand on equal footing with lithium iron phosphate batteries.

2026 is seen by industry insiders as a critical milestone for the commercialization of sodium-ion batteries. Every new vehicle equipped with the “sodium-new” battery essentially tears away at existing market share and redefines the benchmark for energy freedom. New energy vehicles are also entering a “midfield battle” that emphasizes full-temperature delivery capability, supply chain resilience, and resource base security.

Strategic Alliance

In the jungle of commerce, the so-called “only” often indicates a high level of industry trend consensus between parties. This time, Changan Automobile also designated CATL as the “exclusive partner” for its sodium-ion strategy.

In a sense, this means that Changan Automobile, a “new central enterprise” whose new energy sales exceeded 1.1 million units last year, is making a strategic decision at the 2026 market inflection point.

Tan Benhong, Deputy Secretary of the Party Committee of China Changan Automobile Group, clearly stated when discussing the alliance, “Changan is accelerating the transition of sodium-ion from experimental to market-ready, from display to road. In the near future, Changan will continue to launch multiple brands with high-safety, disruptive new models equipped with sodium batteries.” This statement directly signals a shift in Changan’s battery selection focus in the coming years.

Wall Street Insights has learned that, unlike the small-scale demonstration runs by other automakers, Changan’s comprehensive embrace of sodium-ion involves a family-wide layout. Its brands—Aventra, Deep Blue, Qiyuan, and Yinli—will all adopt CATL’s “sodium-new” batteries in the future. Additionally, the world’s first mass-produced sodium-ion passenger vehicle will be launched in mid-2026.

In terms of specific parameters, the “sodium-new” battery cells in this vehicle have an energy density of up to 175Wh/kg, currently the highest in mass production industry standards. Vehicles equipped with this battery will have a pure electric range of over 400 km. In extremely cold environments, the capacity retention rate at -40°C exceeds 90%, and it can still discharge stably at -50°C, with discharge power at -30°C nearly tripling that of conventional lithium iron phosphate. This means that at -40°C, there’s no need to heat the battery, saving energy. Furthermore, this battery can withstand extreme tests such as puncturing, crushing, or sawing without catching fire or exploding.

Gao Huan, CTO of CATL, revealed to Wall Street Insights, “In the future, the pure electric range of sodium batteries can be upgraded to 500 km or even 600 km, with hybrid range breakthroughs of 300 km or even 400 km, covering over 50% of market demand for range.”

This also demonstrates CATL’s ambitions. Gao Huan said, “Lithium batteries are our first child, and sodium batteries are our other child.” The parallel development of these two “children” provides the industry with greater resilience.

The “world’s first mass-produced sodium-ion passenger vehicle” is about to be launched, marking CATL’s deepening strategic layout for sodium-ion this year.

At the end of last year, during CATL’s supplier conference, the company also clearly stated that by 2026, sodium-ion batteries will be widely used in battery swapping, passenger vehicles, commercial vehicles, and energy storage fields.

Gao Huan also admitted that scaling sodium-ion batteries in certain fields to replace lithium-ion batteries is a starting point for the entire energy restructuring.

According to CATL’s expectations, sodium-ion batteries are expected to replace lithium iron phosphate batteries, and as sodium-ion mass production scales up, the costs of sodium-ion and lithium iron phosphate batteries will gradually level out, potentially replacing about 50% of the lithium iron phosphate market share.

The Year of Explosion

If the partnership between Changan and CATL is a “point breakthrough,” then the entire industry’s accelerated push into sodium-ion is a “surface expansion.”

In recent years, the lithium battery industry chain has suffered from volatile lithium carbonate prices. Although lithium prices experienced fluctuations in 2025, the prices of some battery-grade lithium carbonate rebounded nearly 20% in January, reflecting a supply-demand tension caused by the dual explosion of new energy and energy storage. China’s lithium resources are 80% dependent on imports, with 80% of lithium ore relying on imports. This “resource vulnerability” remains a shadow over all automakers.

In contrast, sodium resources are 1,200 times more abundant in the earth’s crust and are widely distributed. Senior analyst Xiang Wall Street Insights that the significance of sodium-ion batteries is not to “completely replace lithium-ion,” but to provide an alternative that can stabilize cyclical fluctuations, thus ensuring material supply security.

Zhao Ruirui, Director of the Central Research Institute of EVE Energy, also told Wall Street Insights that currently, sodium-ion and lithium-ion batteries are still complementary. The advantages of lithium-ion products have been established, and sodium-ion batteries mainly serve as a complement in specific scenarios.

From an industry perspective, besides the light truck market, A00 and A0 class passenger vehicles—markets with lower range requirements but high price sensitivity—are also major battlegrounds for battery manufacturers.

Currently, the sodium-ion industry chain is at a critical point from “small-scale trial” to “tens of thousands of tons” of capacity. In 2025, China’s sodium-ion cathode total output was only 11,000 tons, but industry research predicts that by 2026, sodium-ion cathode production capacity will surge to over 120,000 tons.

This tenfold growth is the result of joint efforts by major players. BYD’s Fudi Battery has signed a billion-yuan sodium-ion battery project in Xuzhou, with an annual capacity of 30GWh, targeting microcars and low-speed electric vehicles; Zhongke Hainai released the world’s first sodium-ion commercial vehicle solution in 2025, with cell energy density surpassing 165Wh/kg, and successfully installed in the Jinlong 49-ton pure electric heavy-duty truck, marking sodium-ion’s entry into large-scale logistics; Gotion High-tech, Weike Technology, and other second-tier players are also launching GWh-level mass production lines.

CATL’s moves are even more aggressive. Besides continuously launching batteries for commercial vehicles, passenger vehicles, and energy storage, it is also accelerating the construction of charging and swapping networks. By 2026, CATL plans to establish over 3,000 battery swapping stations nationwide, especially in the Beijing-Tianjin-Hebei, Heilongjiang-Jilin-Liaoning regions, with over 600 stations to address the energy density slightly lower issue of sodium-ion batteries, reducing the frequency of charging.

This also means that China’s sodium-ion battery market will, over time, shift from primarily energy storage (about 55%) in 2025 to expanding into light-duty power and start-stop power (together about 34%) in the power battery sector as the layout deepens.

Looking further ahead, industry analysts predict that by 2030, the global sodium-ion battery market will see sodium-ion power batteries (410GWh) rapidly approaching energy storage batteries (580GWh), with sodium-ion batteries likely to become as mainstream as lithium-ion batteries.

High-quality industry development is never about replacing one with the other but about mutual empowerment and upgrading. Lithium batteries have initiated the electrification era, while breakthroughs in sodium-ion batteries give this revolution greater resilience and broader scope. In the real battlefield of resource security and cost efficiency, the era of dual stars—sodium and lithium—has already arrived.

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