
The 250kW-522kWh outdoor liquid-cooled lithium-ion battery energy storage system is engineered for businesses that demand high power output and long-duration capacity in a single, weatherproof enclosure. By pairing a 250 kW power conversion system with 522 kWh of usable lithium-ion storage, the 250kW-522kWh outdoor liquid-cooled lithium-ion battery energy storage system delivers four hours of continuous discharge at rated power, making the 250kW-522kWh outdoor liquid-cooled lithium-ion battery energy storage system ideal for peak-shaving, tariff arbitrage and micro-grid support. Unlike conventional air-cooled cabinets, the 250kW-522kWh outdoor liquid-cooled lithium-ion battery energy storage system uses a non-conductive dielectric fluid that circulates through every battery module, keeping cell temperature deviation below 2 °C across the entire 522 kWh pack. This thermal precision extends cycle life beyond 8 000 cycles and allows the 250kW-522kWh outdoor liquid-cooled lithium-ion battery energy storage system to operate safely in ambient conditions from –30 °C to +55 °C without derating.

The energy storage system adopts a ‘fully integrated’ design, integrating Li-ion battery, BMS, PCS, EMS, liquid cooling system and fire-fighting system, which is highly integrated, space-saving and flexible in deployment. Its liquid cooling technology effectively improves operational efficiency and stability, with a power of 100kW and an energy storage capacity of 241kWh, which meets the needs of multiple scenarios such as industry and commerce. Protection level IP54, adapt to a variety of harsh environments, operating temperature -20 ~ 50 ℃, stable operation at an altitude of 4000m.

(1) Energy-saving and Environmentally Friendly By coordinating photovoltaic power generation and energy storage systems, the platform maximizes the use of clean energy, reduces reliance on traditional fossil fuels, lowers carbon emissions, aligns with global sustainable development requirements, contributes to addressing climate change, and establishes a true green charging station, leading the environmental trend in new energy applications. (2) Economical and Efficient On one hand, self-generated power reduces operational costs and electricity expenses; on the other hand, the intelligent energy management system combined with flexible operational strategies further improves energy utilization efficiency, optimizes cost structures, and brings higher economic benefits to charging station operators. Additionally, fast charging capabilities and convenient charging services attract more users, increase charging station utilization rates, and enhance profitability, achieving a win-win outcome for both economic efficiency and environmental protection.

The system is suitable for commercial and industrial scenarios, helping enterprises save energy and reduce costs. Adopting high-performance lithium iron phosphate material, the cycle life is over 6000 times. Intelligent BMS system, to protect the safety and life of the battery. With excellent technology and production strength, sales and inventory are sufficient to meet market demand.

Lithium battery system is mainly composed of battery, energy storage inverter(PCS), energy management system (EMS), battery management system (BMS) and other electrical equipment. Secondary BMS design, multiple monitoring of system status, hierarchical linkage. Relays, fuses, circuit breakers, and BMS constitute a comprehensive protection system integrating electrical safety and functional safety.

SAFE AND RELIABLE LFP cells from first-tier manufacturers 2 level BMS design, multi-monitoring of status Unique and safe liquid-cooling PACK design PACK-grade fire protection design Hierarchical linkage, ensuring the safety of the battery system 3 level electrical protection system of relays, fuses, and circuitbreaker Outdoor cabinet corrosion protection rating C4/C5 RAPID DEPLOYMENT Side-by-side multiple cabinets for rapid deployment Fast access to string-type power conversion system (PCS) orinverter-booster cabir HIGH EFFICIENCY AND CONVENIENT High energy density, stable and reliable performance, and longservice ife Modularized design, convenient for maintenance, managementand capacity expansion Quick cable connection, saving installation time on site ACTIVE EQUALIZATION 2A active equalization, overcoming the impact of single celcapacity on system capacity Equalization accuracy < 2%,egualization capacity up to 10% rated output COST OPTIMIZATION Small and light, saving space and installation cost Long cycle life and low failure rate, reducing 0&M investment