Brunstock supplies battery cells, battery packs and racks for its battery energy storage system. These can be ordered as needed.
Battery Cells
- Use large-capacity 280/314Ah batteries to reduce parallel circulation and improve system consistency
- Performance experiment: Test multiple battery cells and select battery cells according to our battery cell performance evaluation system
- Safety experiment: Reference safety testing standards in the rail transit field , strictly control the safety performance of the battery cells selected
- Full test to comply IEC and UL standards
Battery Cell Features
- Each series aluminum row and the single positive/negative electrodes are laser welded to ensure mechanical reliability and conductive performance
- 28 temperature collection points are set in each pack
- Each single battery provides independent voltage collection
- Adopts liquid cooling design to ensure temperature balance between each battery cell
- The external output of the battery pack has front access, which is convenient for staff to inspect and maintain
Product parameters
| Item | Specification | Notes |
| Battery type | LFP | Aluminum shell |
| Voltage | 3.2 V | Voltage range 2.8 V~3.6 V |
| Capacity | 314 Ah | |
| Nominal charge and discharge current |
157 A |
|
| Maximum charge and discharge current |
314 A |
|
| Rated magnification | 0.5C | Maximum magnification |
|
Cycles |
≥6,000 times |
0.5C rated magnification/@25 °C, 90% DOD, EOL 80% |
| Battery internal resistance | ≤0.2 mΩ | 1 kHz, 30% SOC |
| Storage temperature (°C) | −20~35 °C |
|
| Working temperature (°C) | Charge: 0~55 °C; Discharge: −20~55 °C | |
Battery Packs
Brunstock’s liquid cooling battery packs for our 5MWh BESS consist of a pack cover, battery modules and a liquid cooling plate.
The front plate integrates the high voltage connector, communication interface, MSD, BMS and explosion-proof vent valve, which makes operation and installation easy and convenient.
Product parameters
| Description | 1P104S Pack | |
| Combination | 1P104S | |
| Rated capacity | 314 Ah | |
| Rated energy | 104.5 kWh | |
| Rated voltage | 332.8 V | |
| Rated charge and discharge rate | 0.5C/0.25C | |
| Operation voltage range | 270.4 V~374.4 V | |
| Weight | 670kg±5 kg | |
| Size W x D x H (mm) | 2210 x 794 x 240 |
Battery Racks
Brunstock’s liquid cooling battery racks are designed to fit our 5MWh BESS battery packs.
The racks have a sealing pipeline design that is easy to maintain; and intelligent temperature control that reduces auxiliary power consumption. The high energy density offers more than a 30% increase.
Eight battery packs installed on racks, with the HV box underneath
Six battery racks installed in our 5 MWh BESS container
