Sodium-Ion Battery Industry Analysis Report
- Industry Development Timeline & Commercialization Progress
The technological iteration of sodium-ion batteries has gradually matured, and 2026 is regarded as the inaugural year for its large-scale commercialization. During 2021 to 2022, the sharp surge in lithium carbonate prices endowed sodium-ion batteries with inherent cost competitiveness, making them a key breakthrough direction for major battery enterprises.
2023 marked the initial year of sodium-Ion Battery industrialization. However, the subsequent decline in lithium carbonate prices significantly reduced market attention to sodium-ion batteries. Despite the lack of large-scale commercial expansion at that stage, leading enterprises such as ZKJ POWER continuously promoted product upgrading and technological iteration of sodium-ion batteries.
In 2025, as lithium carbonate prices bottomed out and rebounded, sodium-ion batteries regained market focus relying on their inherent cost edges and excellent low-temperature performance, with substantial improvements achieved in energy density, overall cost and fast-charging capability. The year 2026 officially kicks off the large-scale commercialization era of sodium-ion batteries.
- Main Technical Paths of Sodium-Ion Batteries
The cathode technical routes have gradually converged into two mainstream directions, while the non-anode technical route has emerged as an innovative option for anodes, eliminating the reliance on lithium carbonate and copper foil and enabling strong cost reduction potential.
In 2023, multiple technical routes of sodium-ion batteries developed in parallel. By 2025, the industry routes have tended to converge and stabilize. In terms of battery structure, layered oxides and polyanionic compounds have become the two dominant cathode materials: layered oxides are mainly applied in power scenarios, and polyanionic compounds are widely used in energy storage scenarios, comparable to ternary materials and Lithium Iron phosphate materials in the lithium battery industry respectively.
Hard carbon remains the mainstream anode material, and the emerging non-anode route can further elevate Battery Energy density. Sodium hexafluorophosphate is still adopted as the main solute of electrolyte, with a production process highly similar to that of lithium hexafluorophosphate. Both positive and negative current collectors adopt aluminum foil.
By the end of 2025, sodium-ion batteries will completely abandon high-cost raw materials: lithium carbonate (150,000 yuan/ton) and copper foil (100,000 yuan/ton) will be replaced by sodium carbonate (1,000 yuan/ton) and aluminum foil (20,000 yuan/ton). The manufacturing process is compatible with existing lithium battery production lines, laying a solid foundation for substantial cost reduction.
- Cost Analysis of Sodium-Ion Batteries
At present, the economic efficiency of sodium-ion batteries is slightly superior to that of lithium iron phosphate batteries. With the improvement of industrial chain maturity and continuous breakthroughs in energy density, the long-term cost of sodium-ion batteries is expected to drop to 0.6-0.7 yuan/Wh.
It is estimated that in 2026, the BOM cost of the layered oxide system will reach 0.36 yuan/Wh, and the BOM cost of the polyanionic system will be 0.3 yuan/Wh. The layered oxide cathode contains elements such as copper, iron and manganese, and needs to be matched with high-end hard carbon materials for power scenario applications, resulting in a relatively higher cost. The polyanionic system only contains iron elements and can be combined with mid-to-low-end hard carbon for energy storage scenarios, boasting more prominent cost advantages.
Currently, the economic advantage of sodium-ion batteries has not been fully released, with costs slightly higher than lithium iron phosphate batteries. The main restrictive factors include insufficient raw material supply, low production yield and limited single-cell capacity. As the industrial chain matures and battery energy density improves, the cost is expected to fall to 0.6-0.7 yuan/Wh, forming a strong competitive edge in the market.
- Economic Efficiency Evaluation of Sodium-Ion Batteries
When lithium carbonate is priced at 150,000 yuan/ton and copper at 100,000 yuan/ton, sodium-ion batteries are expected to reach the economic balance point with lithium iron phosphate batteries in 2026-2027. It is projected that the per Wh cost of sodium-ion batteries will drop to 0.3-0.4 yuan/Wh during this period.
The price combination of 100,000 yuan/ton for copper and 150,000 yuan/ton for lithium carbonate constitutes the economic equilibrium threshold between polyanionic sodium-ion batteries and lithium iron phosphate batteries. Even if copper prices fall to 80,000 yuan/ton while lithium carbonate prices fluctuate between 150,000-200,000 yuan/ton, sodium-ion batteries can still maintain economic competitiveness.
With the continuous expansion of industrial chain scale, the cost reduction effect will be further amplified. If the long-term cost of sodium-ion batteries drops to 0.2-0.3 yuan/Wh, they will still retain strong economic viability even when copper prices fall to 60,000 yuan/ton and lithium carbonate prices drop to 50,000 yuan/ton, supporting large-scale application in start-stop power supplies, electric two-wheelers, passenger vehicles and energy storage fields.
- Core Application Scenarios of Sodium-Ion Batteries
5.1 Start-Stop Power Supply Field
Sodium-ion batteries feature High Power Density and no memory effect, making them highly suitable for vehicle start-stop power supply scenarios and expected to replace lead-acid batteries on a large scale.
Vehicle start-stop systems require instantaneous high-current discharge and frequent short-cycle shallow charge-discharge operations. Traditionally dominated by lead-acid batteries, this field suffers from low energy density and short cycle life of lead-acid products; lithium batteries, by contrast, face high costs and poor low-temperature performance, failing to give full play to their long-cycle advantages.
Sodium-ion batteries have high power density, no cycle memory effect, and are significantly lighter than lead-acid batteries, perfectly matching the demand of start-stop power supplies. As of April 2026, the global market size of sodium-ion batteries in this field is estimated to reach 100GWh.
ZKJ POWER has launched the 12V or 24V heavy-duty truck start-stop battery Sodium New, which has a service life of more than 8 years, supports full-capacity deep discharge, and improves energy utilization efficiency. The product can realize one-button startup at -40°C, maintain normal startup performance after one year of static placement, and officially entered mass production in June 2025, marking the formal commercialization of sodium-ion batteries in the start-stop power supply track.
5.2 Electric Two-Wheeler Field
With the advantages of low-temperature resistance, low cost, light weight and high safety, sodium-ion batteries are set to achieve large-scale replacement of lead-acid batteries in electric two-wheelers.
Traditional lead-acid batteries for two-wheelers have obvious drawbacks: heavy weight (nearly 30kg), slow charging speed (only 0.5-2C rate), and sharp capacity attenuation (50% capacity loss at -20°C). Low-end lithium batteries have frequent quality problems and inferior safety stability compared with lead-acid batteries. The implementation of the new national standard has raised industry entry thresholds and increased comprehensive costs for traditional batteries.
After large-scale industrialization, sodium-ion batteries achieve all-round performance upgrades in energy density, charging speed and cycle life compared with lead-acid batteries, with a life-cycle cost reduction of over 50%. They also deliver higher safety than lithium batteries and prominent cost advantages, becoming an ideal choice for electric two-wheeler batteries. As of April 2026, the global market size of sodium-ion batteries in this field is estimated at 50-100GWh.
5.3 Mid-to-Low-End Passenger Vehicle Field
Sodium-ion batteries excel in ultra-low-temperature performance, effectively solving the winter range attenuation pain point of new energy vehicles in cold northern regions, and will be widely applied in mid-to-low-end passenger vehicles with improved economic efficiency in the future.
Sodium-ion batteries maintain over 90% capacity retention at -40°C and stable discharge operation at an extreme low temperature of -50°C, fundamentally resolving the problem of sharp range decline of lithium batteries in cold regions. Meanwhile, the large-scale mass production of sodium-ion batteries brings obvious cost advantages, suitable for mid-to-low-end passenger vehicles with a cruising range within 600km. As of April 2026, the global market space of sodium-ion batteries in passenger vehicles is expected to exceed 1TWh.
launched the Sodium New power battery for passenger vehicles, supporting a pure electric cruising range of over 500km and a hybrid cruising range of over 200km, which officially went into mass production in December 2025. Changan Automobile announced in February 2026 that the world’s first sodium-ion battery powered passenger car is scheduled to launch in mid-2026. Its multiple brand lines including Avatr, Deepal, Qiyuan and Gravity will be equipped with CATL Sodium New batteries in the future.
5.4 Large-Scale Energy Storage Field
Benefiting from low raw material cost, ultra-long cycle life and stable price fluctuation, sodium-ion batteries are poised for large-scale popularization in the energy storage industry.
The energy storage industry is highly sensitive to raw material price fluctuations. Lithium carbonate relies heavily on overseas imports, making lithium iron phosphate battery costs vulnerable to lithium price volatility. In contrast, sodium-ion battery raw materials are abundant in reserves with mild price fluctuations and stable supply, and boast lower comprehensive costs than lithium iron phosphate batteries after scale-up.
Moreover, sodium-ion batteries feature a wide operating temperature range and no memory effect, enabling stable operation in ultra-cold regions. Their high-rate performance also meets the backup power demand of data centers. BYD pointed out that energy storage development cannot rely solely on lithium batteries, and sodium-ion batteries are an irreplaceable optimal solution for the energy storage track, with a cycle life of up to 20,000 times, perfectly matching the long-term operation demand of energy storage systems.
Sodium-ion batteries have completed demonstration verification and are rapidly advancing toward large-scale commercial application. With the maturity of the industrial chain and continuous cost decline, sodium-ion batteries are expected to achieve TWh-scale market breakthroughs in the energy storage sector and become one of the core supporting technologies for the new power system.
- Sodium-Ion Battery Shipment Volume Forecast
2026 will be the inaugural year for the large-scale commercialization of sodium-ion batteries, with global shipments expected to exceed 15GWh; shipments are projected to surpass 500GWh by 2030.
It is estimated that sodium-ion battery shipments will exceed 5GWh in 2025, including 3GWh for energy storage, 1GWh for new energy vehicles, 0.75GWh for electric two-wheelers and 0.5GWh for start-stop power supplies. Shipments will break 15GWh in 2026; the industry will form comprehensive economic advantages during 2027-2028; shipments will exceed 500GWh by 2030, and the long-term market penetration rate is expected to exceed 30%.
- Comparison of Three Mainstream Technical Routes
With technological iteration and market screening, the technical routes of sodium-ion batteries have gradually converged. Enterprises are focusing on two core development directions, forming a stable pattern of layered oxides for power scenarios and polyanionic compounds for energy storage scenarios. Prussian blue analogues are gradually marginalized by the market due to inherent performance defects. Future industry competition will focus on performance upgrading and cost optimization of the two mainstream routes.
Power Scenario (Layered Oxide Route): It features high energy density and high compatibility with lithium battery production processes. It can realize rapid mass production based on existing lithium battery production capacity, meeting vehicle cruising range and power output requirements. It is mainly applied to new energy vehicle start-stop systems, low-speed electric vehicles and electric two-wheelers.
Energy Storage Scenario (Polyanionic Compound Route): It boasts ultra-long cycle life, high safety and excellent low-temperature performance, satisfying the core demands of long-term stable operation and wide-temperature adaptation for energy storage projects. It is widely used in large-scale grid energy storage, household energy storage, 5G base station backup power and other scenarios.
Zhejiang Zhongkejie Energy Technology Co., Ltd.
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