Liquid cooling technology empowers commercial and industrial energy storage | SUNESS

In the fast-evolving field of commercial and industrial (C&I) energy storage, safety, reliability, and lifecycle management remain at the forefront of user concerns. As battery energy density increases and system capacity expands, efficient temperature control has become a key factor affecting performance and safety. The introduction of liquid cooling technology is now redefining the standard for modern C&I energy storage systems.

The Need for Advanced Temperature Control in C&I Storage

C&I energy storage systems often operate under complex conditions — large capacity, long running hours, and diverse environments such as high-temperature factories, humid warehouses, and outdoor sites with intense sunlight.

High temperatures accelerate battery aging and capacity degradation.

Low temperatures reduce power output and can even trigger safety risks.

To maintain consistent performance and ensure system safety, precise temperature management is essential.

While air cooling systems are common in small and medium-sized installations, they face limitations in large-scale applications—particularly in terms of uniform temperature distribution and energy efficiency. These challenges have driven the adoption of liquid cooling technology in next-generation C&I ESS solutions.

How Liquid Cooling Works

A liquid cooling system circulates coolant between battery modules to absorb and transfer heat to a heat exchanger, achieving rapid and uniform cooling. Compared to air cooling, liquid cooling provides:

Higher thermal conductivity: The coolant directly contacts the heat source for more effective heat transfer.

Precise temperature balance: Keeps the cell temperature difference within a narrow range, improving battery consistency.

Dynamic system control: Intelligent regulation adjusts cooling according to environmental and load conditions.

Key Advantages of Liquid Cooling in C&I Energy Storage

Extended Battery Lifespan

Accurate thermal control slows degradation and ensures predictable long-term performance.

Enhanced Safety

Even temperature distribution minimizes local overheating, significantly reducing the risk of thermal runaway.

Higher System Efficiency

Reduced thermal stress improves operational efficiency and total lifecycle performance.

Adaptability to Harsh Environments

Suitable for high-temperature, high-humidity areas, as well as data centers and advanced manufacturing facilities that demand precise temperature regulation.

SUNESS Containerized Liquid-Cooled Battery Energy Storage System

The SUNESS containerized liquid-cooled lithium battery storage system is engineered for large-scale commercial and industrial applications. Featuring high integration, precision cooling, and intelligent control, it delivers exceptional reliability, safety, and operational efficiency.

High Safety Design

Uses high thermal-stability LiFePO₄ (LFP) cells with an independent fire protection system and preventive safety architecture.

IP55 protection rating, suitable for outdoor installations.

C5 corrosion resistance for long-term stable performance.

High Integration and Compact Design

1,500V modular architecture with separate electrical and battery chambers for easier maintenance.

Non-walk-in, modular configuration saves up to 35% floor space.

Pre-assembled and pre-tested design reduces on-site installation time and commissioning costs.

Powering a Smarter and Greener Future

The SUNESS liquid-cooled ESS solution combines intelligent management, high integration, and advanced safety features to help businesses lower operational costs, improve energy efficiency, and accelerate the transition toward a greener, smarter, and more sustainable energy ecosystem.