With the support of long-life cell technology and liquid-cooling cell-to-pack (CTP) technology, CATL rolled out LFP-based EnerOne in 2020, which features
High level of safety
1. LFP batteries with high thermal stability
2. Protection level of IP66 to meet the requirements of outdoor applications
3. Resistance up to C5 corrosion level, with 20-year reliability
4. Separate fire protection system
Long service life
1. Available for integration with CATL's advanced technologies (e.g. optional cell with super-long cycling up to 12,000 cycles)
2. Integrated frequency conversion liquid-cooling system, with cell temperature difference limited to 3℃, and a 33% increase of life expectancy
High integration
1. Modular design, compatible with 600 - 1,500V system
2. Separate water cooling system for worry-free cooling
3. Modular design with a high energy density, saving the floor space by 50%
4. Transportation after assembly, reducing on-site installation costs and commissioning time
The EnerOne+Rack is a modular fully integrated product, consisting of rechargeable lithium-ion batteries, with the characteristics of high energy density, long service life, and high efficiency.
The EnerOne+Energy Storage products are capable of various grid applications, such as frequency regulation, voltage regulation, arbitrage, peak shaving and valley filling, and demand response. Furthermore, the EnerOne+Rack can be used for PV storage integration and Wind storage integration. The system can also operate as a microgrid to support backup and islanded systems.
The EnerOne+Rack consists of the following parts: batteries, BMS, FSS, and TMS, which are integrated together to keep the normal working of Rack.
Battery
The capacity of cells 306Ah,1P52S cells integrated into one module, and 8 modules integrated into one Rack. As the core of the energy storage system, the battery releases and stores energy.
BMS
BMSadopts the distributed scheme, through the three-level (CSC--SBMU--MBMU)architecture to control the BESS, and ensure the stable operation of the energy storage system. It can manage energy absorption and release, the thermal management system, and auxiliary power supply according to the detected information: battery voltage, current, and temperature. It can monitor high voltage DC/AC security, and diagnose, and analyze faults according to information from various detectors and dry-contacts. And it can keep communication with PCS and EMS through CAN.
FSS
FSS consists of a smoke detector and heat detector (Orheatdetector and gas detector), aerosol, and a dry pipe(optional).Functions: monitor thermal run-away risks of rack-through detectors, extinguish the thermal run-away in an early stage, and control the loss to a minimum. The FSS is independent of any other system and is the security guard of EnerOne+Rack.
TMS
TMS consists of one powerful chiller, one PTC heater, and the liquid cooling pipe distributed in each battery module. The TMS will keep the battery working at its best state and reach the longest life.
Control box
The control box mainly includes a detection device, protection device, and AC/DC power supply. The structure is shown as follows.
DC Side Data | |
Product Model | R08306P05L31 |
P-Rate | 0.5P |
Cell | |
Cell type | LFP |
Cell capacity | 306Ah |
Cell Voltage range | 2.5-3.65V |
Cell rated Energy | 979.2Wh |
System | |
Configuration | 1P416S |
Rated Energy | 407.34 kWh |
Rated Voltage | 1331.2 VDC |
Voltage Range | 1040~1500 VDC |
Rated Charging Current | 153A |
Maximum Charging Current | 195.8A,<1min |
Rated Charging Power | 203.67kW |
Rated Discharging Current | 153A |
Maximum Discharging Current | 195.8A,<1min |
Rated Discharging Power | 203.67kW |
*Table 1: Power and Energy of EnerOne+
Auxiliary Power &Communication | ||
Product Model | R08306P05L31 | |
P-Rate | 0.5P | |
Auxiliary Power1 for BMS | Voltage | L+N+PE/220V/110V±10%, |
Range | 50/60HZ | |
Power | Max.135W | |
Rated Current | 2.3A | |
Inrush | ≤6A,<1S | |
Current | ||
Auxiliary Power2 for cooling unit | Voltage | L+N+PE/220V±20%,50/60HZ |
Range | ||
Power | Max.3kW(Continuous) | |
Rated Current | 10A | |
Inrush | ≤12.5A,<1ms | |
Current | ||
Auxiliary Power3 for Fire FSS | Voltage | 24VDC |
Range | ||
Power | 0.003W(Standby state) | |
27.3W(Alarm status) | ||
Current | 0.125mA(Standby state) | |
1.1375A(Alarm status) | ||
Communication Protocol | CAN, Modbus/TCP |
*Table 2: Electrical specifications of EnerOne+
Mechanical Data | |
Product Model | R08306P05L31 |
Transportation | Land or sea transportation |
Size | 2348mm(H)*1390mm(W)*1344.1mm(D) |
Weight | 3600±100kg |
Color | RAL7035 |
IP Level | IP56(Battery Room) |
IP23(Electrical Room) | |
IP66(Control Box) | |
IP66(Battery Modules) | |
IP26(Chiller Unit) | |
Environment condition | |
Charge Temperature Range | -25℃…+55℃ |
Discharge Temperature Range | -25℃…+55℃ |
Storage Temperature Range | -30℃…+60℃ |
Application Altitude | ≤4000m |
Relative Humidity | 0~95%(non-condensing) |
Degree of Anti-corrosion of Battery Unit | C5 |
Seismic Level | IEEE693-2018 Moderate design level |
*Mechanical Data and Environmental Specifications of EnerOne+
BMS is used in energy storage systems, which can monitor the battery voltage, current, and temperature, manage energy absorption and release, thermal management, low voltage power supply, high voltage security monitoring, fault diagnosis and management, external communication with EMS and ensure the stable operation of the energy storage system.