BHL09158240-50Ah Low-Temperature Lithium-Ion Cell | Features & Applications
Ⅰ. Core Product Advantages
1. Ultra-Wide Temperature Stable Discharge down to -50℃
Charging temperature: 0℃~40℃; Discharge temperature: -50℃~55℃.
The cell retains ≥95% capacity at 55℃, delivers full rated capacity at 25℃ room temperature, and maintains 95% capacity at 0℃. It reserves over 80% capacity at -40℃ extreme cold with a low-temperature cut-off voltage of 2.75V. Suitable for equipment operating in cold northern regions, cold storage, high-altitude and polar environments, it requires no additional heating modules or temperature control hardware, greatly reducing equipment design and manufacturing costs.
2. 50Ah Ultra-Large Capacity & Lightweight Pouch Structure for Long Endurance
Equipped with 50Ah ultra-large single-cell capacity, it significantly enhances the endurance of single battery sets. With a high energy density of 226Wh/kg, it balances large capacity and lightweight performance. The flexible aluminum-plastic packaging breaks the size limitations of metal shells, enabling flexible layout in energy storage cabinets and adaptive space arrangement for large-scale energy storage warehouses and vehicle-mounted high-capacity power supplies. The surface temperature is controlled within 70℃ during short-term charge and discharge. The controllable temperature rise during long-term continuous operation effectively prevents accelerated cell aging.
3. Stable Cycle Performance & Low Self-Discharge for Maintenance-Free Long-Term Energy Storage
The cell features excellent cycle durability under standard working conditions. It retains more than 85% residual capacity after 30-day full-charge static storage at room temperature with low self-discharge loss. For long-term storage, a state of charge of 10%~35% is recommended. Stored in a dry environment at -20℃~45℃, it only requires supplementary charging once a year. It is ideal for unattended large-scale outdoor energy storage stations and long-term standby power supplies for engineering vehicles.
4. Full-Range Strict Safety Tests to Prevent Thermal Runaway Under Heavy Loads
The cell has passed comprehensive rigorous tests including overcharge, deep overdischarge, external short circuit, 135℃ thermal shock, high-low temperature alternating test, three-axis swept vibration and six-direction drop test. No fire, liquid leakage or explosion occurs throughout all tests. The deformable and extrusion-resistant aluminum-plastic composite shell, matched with a dedicated protection board, provides triple protection against overcharge, overdischarge and overcurrent, fully meeting the high safety standards of construction machinery and outdoor energy storage power stations.
5. Standardized Large-Capacity Cell for Efficient Mass PACK Integration
Adopting a standardized large-size pouch design, cells from the same batch feature voltage difference ≤20mV and internal resistance difference ≤6mΩ, with an internal PACK temperature deviation controlled within 5℃. Only resistance welding and laser welding are allowed, while tin welding is prohibited. There is no strict limit on series-parallel configuration. Equipped with fuses in series circuits, the cell requires no customized metal shell molds, greatly improving mass production efficiency for large-scale energy storage modules.
Ⅱ. Industry Application Scenarios
RV & Construction Machinery Parking Energy Storage
The 50Ah ultra-large capacity supports long-term operation of vehicle-mounted air conditioners and high-power electrical appliances. It maintains stable voltage at low temperatures down to -50℃, providing durable power support for long-distance travel and engineering operations in severe cold regions.
Large-Capacity Backup Power for Cold-Region Construction Machinery
Serving as supporting energy storage for mining machinery and heavy engineering vehicles, it ensures reliable startup in open-air winter environments and stable cyclic operation, reducing cell replacement frequency and equipment maintenance costs.
Energy Storage for Plateau & Alpine Field Communication Base Stations
As backup power for communication facilities in remote mountainous and cold northern areas, it sustains continuous power supply under drastic day-night temperature differences. Its low self-discharge performance effectively reduces remote inspection workload.
Energy Storage Equipment for Polar Heavy-Duty Scientific Exploration
Applicable to large-scale polar detection instruments and long-term field power stations. It features minimal capacity attenuation in extreme cold, supporting multi-quarter uninterrupted scientific research operations.
Industrial Cold Storage Uninterruptible Power Supply
Suitable for complete energy storage units in cold chain factories, it operates stably in perennial low-temperature workshops and meets the continuous power demand of cold storage AGVs and heavy-duty detection equipment.
Ⅲ. Product Summary
The BHL09158240-50Ah low-temperature pouch cell features core advantages of 50Ah ultra-large capacity, -50℃ ultra-wide temperature discharge and 226Wh/kg high energy density. It also delivers stable cycle performance, ultra-low self-discharge, full-range safety protection and easy integration for large-scale energy storage. Tailored for large vehicle-mounted equipment, engineering machinery, polar base stations and industrial long-term low-temperature energy storage devices, it is equipped with complete charge-discharge specifications, mature large-capacity PACK assembly guidance and one-year process warranty, serving as the optimal pouch cell solution for large-scale low-temperature energy storage systems.
