21700 Lithium-Ion Cell with Li-NMC Cathode, Wide Temperature Range, and Low Internal Resistance for High Performance

Product Name: 21700 5000mAh High-Rate Lithium-Ion Rechargeable Cell

Key Features:

• High-capacity 5000mAh energy storage
• Superior discharge performance supporting up to 40A continuous current
• Excellent cycle life with ≥70% capacity retention after 500 cycles
• Wide operating temperature range (-20°C to 60°C)
• Robust safety characteristics meeting international standards

Electrical Specifications:

Performance Characteristics:

Discharge Efficiency at Various Currents:

• 0.2C (1A): 100%
• 1C (5A): ≥95%
• 2C (10A): ≥95%
• 4C (20A): ≥93%
• 6C (30A): ≥92%
• 8C (40A): ≥90%

Temperature Performance:

• 25°C: 100% efficiency
• 55°C: ≥95% efficiency
• -20°C: ≥70% efficiency
• 

Cycle Life & Storage:

• Maintains ≥70% capacity after 500 cycles at 15A discharge
• 28-day storage at 25°C: ≥85% residual capacity, ≥90% recovery capacity
• 7-day storage at 55°C: ≥85% residual capacity, ≥90% recovery capacity

Safety Compliance:

• Overcharge protection: No fire, no explosion
• Short circuit protection: No fire, no explosion
• Mechanical integrity: Passes drop, crush, and impact tests
• Environmental tolerance: Stable performance under low pressure and high temperature conditions

Ideal Applications:

• High-power electric tools and equipment
• Light electric vehicles and e-mobility systems
• Portable medical devices
• Backup power systems
• Professional-grade electronic equipment

Environmental Compliance: This product meets international standards for hazardous substance restrictions (RoHS compliant).

Note: All specifications are based on testing at 25±2°C and ≤85% relative humidity. Performance may vary based on usage conditions and system configuration. Always refer to the complete technical specification sheet for detailed application guidelines.

This product is designed for professional applications and should be handled by qualified personnel familiar with lithium-ion battery safety protocols.