HV Liquid-Cooled Energy Storage Batteries: ETBTMS Series Redefining For Energy Storage Efficiency and Safety
In the rapidly evolving field of energy storage technology, high-voltage liquid-cooled energy storage lithium batteries are becoming a core driver of industry transformation. The ETBTMS series, an energy storage system featuring an advanced liquid-cooled floor-type design, perfectly combines the safety of Lithium Iron Phosphate (LFP) batteries with efficient thermal management technology, providing a reliable solution for residential, commercial, and industrial energy storage. This article provides an in-depth analysis of the series’ technical principles, core advantages, and practical applications to help you fully understand this leading technology.
What are High-Voltage Liquid-Cooled Energy Storage Lithium Batteries?
A high-voltage liquid-cooled energy storage lithium battery is an integrated energy storage system that combines high-voltage operation with liquid-cooled thermal management. The ETBTMS series uses Lithium Iron Phosphate (LiFePO4) cells, with operating voltages ranging from 192V to 259.2V, and achieves precise temperature control through a built-in liquid cooling circuit. The “liquid cooling” system absorbs heat generated during battery charging and discharging via coolant circulation, facilitating heat exchange through a radiator to ensure the batteries always operate within the optimal temperature range, significantly improving system efficiency and lifespan.
Core Technology Breakdown
Battery System and CTP Technology
The ETBTMS series utilizes highly safe and stable LFP cells, configured in specifications like CTP-1P605/725/815, eliminating the constraints of traditional modules and enhancing volume utilization and energy density. Their rated energies are 9.6kWh, 11.5kWh, and 13kWh respectively, supporting a recommended Depth of Discharge (DOD) of 0.9, ensuring maximized usable energy for the user.
Intelligent Liquid Cooling Thermal Management System
The system integrates a liquid cooling/heating dual-mode temperature control, combined with proprietary silicone foam insulation technology, maintaining high efficiency even within a broad temperature range of -20°C to 30°C. This not only reduces performance degradation caused by temperature fluctuations but also significantly enhances the system’s adaptability in extreme environments.
Battery Management System (BMS)
The built-in BMS features multi-parameter collection (voltage, current, temperature), supports CAN and RS485 communication, can intelligently adjust charge/discharge power, and is compatible with communication protocols from most mainstream inverters. The system supports a maximum charge/discharge current of 50A and includes multiple protection mechanisms against overcharge, over-discharge, and for cell balancing.
Four Core Advantages
1. High Safety and Reliability
Utilizing the Lithium Iron Phosphate chemistry fundamentally prevents thermal runaway risks. Combined with an IP65 protection rating and multi-layer safety design, it ensures safe and stable operation in various environments.
2. High Efficiency and Long Lifespan
The liquid cooling system maintains the battery within the ideal temperature range, achieving a cycle life of ≥8000 cycles. The system’s rated DC power ranges from 6.7kW to 9.1kW, with maximum power reaching 9.6kW to 13kW, meeting energy demands in high-load scenarios.
3. Flexible Expansion and Easy Deployment
Supports parallel connection of up to 4 units of the same model, allowing users to flexibly expand capacity based on actual needs. The floor-mounted installation design adapts to various site conditions, facilitating system integration and maintenance.
4. Intelligent Control and Broad Compatibility
The BMS monitors the status of each cell in real-time and intelligently adjusts output strategies based on ambient temperature and State of Charge (SOC) to optimize energy utilization. Its open communication protocol is compatible with almost all mainstream brand equipment, enabling easy system integration and remote management.
Typical Application Scenarios
– Home Energy Storage: Paired with photovoltaic systems for energy self-sufficiency, improving electricity economy.
– Commercial Power Use: Manages peak and off-peak electricity prices, reducing business electricity costs.
– Backup Power Supply: Provides continuous power supply during grid outages.
– Microgrids and Off-Grid Systems: Suitable for areas without grid access or with unreliable grids, supporting the integration of renewable energy.
Conclusion
The ETBTMS high-voltage liquid-cooled energy storage lithium battery system redefines the standards for energy storage efficiency and safety through three core innovations: CTP technology, liquid cooling thermal management, and an intelli