370Wh/kg HIGH ENERGY DENSITY LITHIUM-ION POUCH CELL | ATOMFAIRCOMMERCIAL GRADE · PRODUCTION
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TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: INQUIRY@ATOMFAIR.COM
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MANUFACTURER: ATOMFAIR LLC
BRAND: ATOMFAIR®
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Store the cell in a dry, ventilated area between 15-30°C to prevent thermal degradation and capacity fade. The cell is sensitive to mechanical stress and overcharge conditions, requiring adherence to specified charge/discharge profiles to avoid failure.
- Temperature and Atmosphere Constraint: Maintain storage temperature between 15-30°C in a dry, ventilated environment to mitigate self-discharge and electrolyte decomposition.
- Mechanical and Electrical Safety Constraint: Avoid mechanical stress and overcharge conditions by keeping the cell in original packaging until use and following recommended charge/discharge profiles.
- Charge Temperature Constraint: Restrict charging to ambient temperatures between 0°C and +45°C to prevent lithium plating and internal short circuits.
- Discharge Temperature Constraint: Limit discharge operation to temperatures from -20°C to +45°C to maintain structural integrity and avoid capacity loss.
- Cycle Life Degradation Risk: Expect capacity fade beyond 500 cycles at 0.5C/0.5C and 25°C, with coulombic efficiency exceeding 99.5% under specified conditions.
This procedure outlines the safe unpacking, inspection, and initial charging of the NMC/Gr+SiC pouch cell to ensure operational integrity and prevent thermal runaway. Follow these steps in a controlled environment with appropriate personal protective equipment.
Required Equipment: Personal protective equipment (PPE): insulated gloves and safety goggles, Constant current/constant voltage (CC/CV) battery cycler with voltage and current limits, Multimeter for open-circuit voltage (OCV) verification, Non-flammable, ventilated workspace or fume hood
- Inspect packaging and cell condition
Visually inspect the original packaging for damage and verify the cell shows no swelling, punctures, or electrolyte leakage before removal. - Measure initial open-circuit voltage
Use a multimeter to confirm the cell OCV is within the specified voltage range of 2.50 V to 4.30 V to ensure no over-discharge or short circuit occurred during transport. - Connect cell to battery cycler
Attach the cell leads to a CC/CV cycler set to a standard charge current of 0.2 C (6.0 A) and a maximum voltage of 4.30 V, ensuring correct polarity. - Perform initial charge cycle
Charge the cell at 0.2 C constant current until 4.30 V is reached, then hold at constant voltage until current drops to 0.05 C (1.5 A) to fully activate the electrolyte. - Verify cell temperature during charge
Monitor cell surface temperature with a thermocouple to ensure it remains below 45°C throughout the charge cycle to prevent thermal stress. - Discharge cell to storage voltage
Discharge the cell at 0.5 C to 3.5 V (nominal voltage) for safe storage if not immediately used, using the cycler's discharge function. - Store cell in controlled environment
Place the cell in a dry, ventilated storage area at 15-30°C, away from flammable materials and direct sunlight, until next use.
How does the 370 Wh/kg energy density of this NMC pouch cell affect its cycle life under high-rate pulse discharge conditions?
The cell delivers ≥370 Wh/kg gravimetric energy density while maintaining a cycle life of ≥500 cycles at 0.5C/0.5C and 25°C. Despite the high energy density, it supports pulse discharge up to 10.0C (10s) with low internal resistance ≤1.5 mΩ, enabling high-rate performance without severely compromising cycle life under standard testing conditions.
What are the voltage and temperature constraints for integrating this 30 Ah pouch cell into a high-rate battery pack?
The cell operates within a voltage range of 4.30 V to 2.50 V, with a rated voltage of 3.5 V. It can be charged from 0°C to +45°C and discharged from -20°C to +45°C. For continuous discharge up to 5.0C and pulse discharge up to 10.0C, the cell requires ≥50% SOC for the pulse mode.
What storage and handling precautions are recommended for this high-energy lithium-ion pouch cell to prevent degradation or safety hazards?
Store the cell in its original packaging in a dry, ventilated area between 15–30°C. Avoid mechanical stress, overcharge conditions, and disassembly. Do not expose to fire. Follow the recommended charge/discharge profiles (standard charge 0.2C, max continuous charge 0.5C) to maintain safety and performance.
This high-energy density pouch cell delivers 370 Wh/kg with NMC/Gr+SiC chemistry, supporting 10C pulse discharge and 500+ cycles, but requires careful handling due to sensitivity to mechanical stress and a limited charge temperature range.
Positive
- Ultra-High Energy Density: Gravimetric energy density ≥370 Wh/kg and volumetric density ≥705 Wh/L enable compact, high-performance system designs for demanding applications.
- Exceptional Rate Capability: Low internal resistance (≤1.5 mΩ) supports continuous discharge up to 5.0C and pulse discharge up to 10.0C (10s), suitable for high-dynamic loads.
Trade-offs
- Mechanical and Overcharge Sensitivity: The cell is sensitive to mechanical stress and overcharge conditions, requiring careful handling and strict adherence to recommended charge/discharge profiles to maintain integrity.
- Limited Charge Temperature Range: Charging is restricted to 0°C to +45°C, which may constrain low-temperature charging applications despite a wider discharge range of -20°C to +45°C.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
