Product Overview
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| Designed for severe environmental deployment and high-frequency power demands, this high-performance tabless lithium ion battery features an innovative cylindrical configuration optimized to eliminate standard current collectors. Implementing a specialized wide temperature range 21700 architecture, the 5.0Ah 3.6V cell utilizes an advanced NCM silicon oxide chemistry platform (Nickel Cobalt Manganese / Graphite + Silicon Oxide) to yield low impedance metrics (≤3.5 mΩ). This structural configuration supports a secure 15C high rate continuous discharge profile with high energy density parameters (≥250 Wh/kg). Its heavy-duty tabless engineering path balances internal heat profiles safely under continuous loads, supplying reliable, high-power electron flow down to cold sub-zero environments, acting as the definitive power baseline for modern electric vehicle powertrains, portable tools, and aerospace engineering tasks. |
Technical Specifications
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| PARAMETER |
VALUE |
| 1. Core Device & Electrochemical Design |
| Cell Format Standard |
Cylindrical Form Factor (Tabless 21700 Profile) |
| Cell Chemistry Link |
NCM / Gr+SiOx (Nickel Cobalt Manganese / Graphite + Silicon Oxide) |
| Rated Capacity / Rated Voltage |
5.0 Ah / 3.6 V (@ 0.2C Evaluation Rate) |
| Voltage Range Parameters |
4.20 V Cut-off – 2.50 V Cut-off |
| AC Internal Resistance |
≤ 3.5 mΩ (@ 50% State of Charge) |
| 2. Cathode & Charge Parameters |
| Standard Charge Current |
1.0 C |
| Max. Continuous Charge |
5.0 C (Thermal cut-off @ 60°C) |
| Charge Temperature Range |
0 °C ~ +60 °C |
| 3. Anode & Discharge Parameters |
| Standard Discharge Current |
1.0 C |
| Max. Continuous Discharge |
15.0 C (Thermal cut-off @ 80°C) |
| Pulse Discharge Current (10s) |
30.0 C (≥ 30% State of Charge) |
| Discharge Temperature Range |
-60 °C ~ +60 °C |
| 4. Physical Package & Energy Metrics |
| Estimated Dimensions |
21 mm × 70 mm (Φ × H) |
| Estimated Weight |
70 g |
| Gravimetric Energy Density |
≥ 250 Wh/kg (@ 0.2C Rate) |
| Volumetric Energy Density |
≥ 720 Wh/L (@ 0.2C Rate) |
| Verified Lifecycle Metrics (@ 25°C) |
≥ 1000 cycles (1C/1C 100% DOD) | ≥ 500 cycles (1C/4C 100% DOD) | ≥ 300 cycles (2C/10C 80% DOD) |
| Alternative Catalog Items |
Explore our complete component catalog for alternative volumetric capacities, high-conductivity polymer separators, aluminum-laminated protective packaging films, or multi-channel battery cycling systems. |
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Key Features & Advantages
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- Ultra-Wide Temperature Range: Discharge from -60°C to +60°C and charge from 0°C to +60°C, enabling reliable operation in extreme cold and hot environments.
- Tabless Architecture: Innovative tabless design drastically reduces internal resistance (≤3.5 mΩ), minimizing heat generation and enabling high continuous discharge up to 15.0C and pulse discharge up to 30.0C (10s).
- High Power & Fast Charge: Supports 5C maximum continuous charge for rapid recharging, ideal for high-uptime applications.
- High Energy Density: ≥250 Wh/kg and ≥720 Wh/L, offering 5.0Ah capacity in a compact 21700 form factor.
- Robust Cycle Life: ≥1000 cycles at 1C/1C, ≥500 cycles at 1C/4C, and ≥300 cycles at 2C/10C 80% DOD, ensuring long-term durability.
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APPLICATION SCOPE: Highly recommended for aerospace drone configurations, automotive powertrain prototyping, high-capacity uninterruptible UPS lines, and next-generation extreme environment energy storage system testing.
SHIPPING & LOGISTICS: Secured within shock-damping hazardous material transport packaging boxes to preserve terminal connections. Arrives pre-calibrated and complete with comprehensive factory batch inspection data certificates.
IMPORTANT NOTICE: This tabless 21700 cell features ultra-low internal resistance and excellent thermal management. Charge with CCCV profile, cut-off at 60°C. Discharge cut-off at 80°C. Do not exceed rated currents. For extreme low temperature operation (-60°C), pre-conditioning may be required. Store in dry, ventilated area between 15-30°C. Do not disassemble, short circuit, or expose to fire.
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Frequently Asked Technical Questions
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What is the advantage of tabless design for this 21700 cell?
The tabless architecture significantly reduces internal resistance (≤3.5 mΩ) and improves current distribution, enabling higher continuous discharge rates (15.0C), lower heat generation, and better thermal stability. This allows the cell to maintain performance even under extreme load conditions.
How does this battery perform at -60°C?
The cell supports discharge down to -60°C, making it one of the few lithium-ion cells capable of operating in extreme cold environments. Charge is supported from 0°C to +60°C. This wide temperature range is achieved through optimized NCM/Gr+SiOx chemistry and tabless design.
What cycle life can be expected under high-rate discharge?
At 25°C, the battery delivers ≥1000 cycles at 1C/1C 100% DOD, ≥500 cycles at 1C/4C 100% DOD, and ≥300 cycles at 2C/10C 80% DOD. The tabless architecture and robust chemistry ensure excellent longevity even under aggressive discharge regimes.
How does this tabless 21700 compare to conventional 21700 cells?
Compared to conventional 21700 cells, this tabless version offers much lower internal resistance (≤3.5 mΩ vs typical 10-15 mΩ), higher continuous discharge (15C vs 3-10C), better thermal management, and wider operating temperature (-60°C discharge). It provides superior power density while maintaining high energy density (≥250 Wh/kg), ideal for EVs, power tools, and extreme environment applications.
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WIDE TEMP & TABLESS SOLUTIONS
Request a quote for samples, pilot runs, or mass production. Our engineering team supports high-rate tabless cell integration for extreme environments.
EMAIL: INQUIRY@ATOMFAIR.COM
Global logistics · Fast sample delivery · Technical datasheets available
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