As global demand for safe, affordable, and sustainable energy storage continues to surge, SolarEast Energy Storage Integrator introduces a groundbreaking solution — the 60kW/126kWh Liquid-Cooled Sodium-Ion Battery Cabinet. This case study explains why sodium-ion batteries are emerging as an ideal alternative to lithium-ion technology, explores their advantages and applications, and showcases SolarEast’s innovative Na-ion energy storage system (ESS).

1. Why Sodium-Ion Batteries Are the Future of Energy Storage

For years, lithium-ion technology has dominated electrochemical energy storage. However, issues such as resource scarcity, rising material prices, and safety risks have pushed the industry to search for alternatives. Sodium-ion batteries have become the perfect “Plan B”—offering high safety, lower cost, and strong supply chain independence.  

Key Competitive Advantages of Sodium (Na):

Abundant Resources:  Sodium is one of the most widely available elements on Earth and can be extracted from seawater or salt lakes. 

Lower Material Cost:  Sodium carbonate is significantly cheaper and more price-stable than lithium carbonate, ensuring better system cost control. 

Supply Chain Security:  Unlike lithium, sodium does not rely on imported raw materials, helping build a more reliable and localized energy storage supply chain. 

2. Core Advantages of Sodium-Ion Battery Technology

High Safety: Na-ion batteries are less prone to thermal runaway and fire compared to lithium-ion. 

Cost Efficiency: Lower raw material cost and stable pricing reduce the overall Levelized Cost of Storage (LCOS). 

Low-Temperature Performance: Supports efficient discharge at sub-zero temperatures, even at -20°C, making it suitable for cold regions.

Environmental Sustainability: Sodium-ion technology uses abundant, non-toxic materials and supports a greener battery manufacturing process. 

3. Application Scenarios of Sodium-Ion Energy Storage Systems

Thanks to its cost-effectiveness and stable performance, sodium-ion battery systems are ideal for multiple scenarios:

3.1 Grid-Side Energy Storage

Used for peak shaving, valley filling, frequency regulation, and voltage support.

Significantly reduces electricity cost per kWh.

3.2 Renewable Energy (Generation-Side Storage)

Paired with solar PV or wind energy to stabilize power output and improve grid integration of renewables.

3.3 Commercial & Industrial (C&I) Energy Storage

Ideal for factories, data centers, logistics parks, and microgrids with high safety and cost-saving demands.

3.4 Lead-Acid Battery Replacement

Applied in electric two/three-wheelers, low-speed EVs, and backup systems—offering longer lifespan, higher energy density, and zero lead pollution. 

4. SolarEast’s Innovation: 60kW/126kWh Liquid-Cooled Na-ion Battery Cabinet

SolarEast combines advanced sodium-ion cells with a highly reliable liquid cooling system, delivering a high-performance, modular, and safe energy storage solution designed for grid-side and C&I deployment.

Technical Specifications

Cell Type: Sodium-ion Battery

Battery System Rated Voltage: 741VDC

Series/Parallel Connection: 1P260S

DC Voltage Range: 390V to 910VDC

Cabinet Dimensions: W1000±3*D1350±3*H2300±3mm

AC Rated Voltage: 380Vac±15%

Thermal Management: Liquid Cooling

Operating Temperature Range: Discharge: -20°C to 55°C, Charge: 15°C to 55°C

IP Rating: IP54

Operating Humidity: 5% to 95% RH

Rated Capacity: 126kWh

5. Main Product Highlights

✅ 1. Ultimate Safety and Smart BMS

Combining the inherent safety of Na-ion batteries with SolarEast’s advanced Battery Management System (BMS), the system ensures real-time protection and reliable long-term operation. 

✅ 2. Efficient Liquid-Cooled Thermal System

The liquid cooling system maintains cell temperature differences within a minimal range, greatly enhancing cycle life and ensuring stable performance even at -20°C. 

✅ 3. High Integration and Easy Deployment

The 60kW/126kWh ESS adopts a standard cabinet design, simplifying transportation, installation, and maintenance while reducing BOS (Balance of System) costs. 

6. Conclusion: Powering a Sodium-Based Energy Future

The SolarEast 60kW/126kWh Liquid-Cooled Sodium-Ion Battery Cabinet represents a major leap forward in the energy storage industry. It delivers a safer, lower-cost, and temperature-resilient alternative to lithium-ion systems, accelerating the commercialization of sodium-ion technology.

SolarEast is committed to collaborating with global partners to enable large-scale deployment of Na-ion energy storage and advance the transition toward diversified and sustainable energy systems.