Semi-Solid High-Energy Pouch Cell 25.5-58Ah 3C

This high-energy-density pouch cell requires strict environmental controls and safety monitoring to prevent thermal runaway or capacity degradation. Always store in moisture-barrier vacuum-sealed packaging and use a compatible BMS with over-discharge, over-current, and cell balancing protection.

• Moisture Sensitivity: The semi-solid electrolyte and pouch construction are moisture-sensitive; exposure to ambient humidity can induce swelling, leakage, or internal short circuits.
• Thermal Operating Limits: Continuous operation above 60°C degrades the electrolyte and accelerates capacity fade; charge only within 0–50°C and discharge within -20–60°C depending on the variant.
• BMS Integration Requirement: A compatible battery management system must enforce over-discharge protection, over-current cutoff, and individual cell balancing to prevent irreversible damage or thermal events.
• Voltage Window Compliance: Operating outside the recommended voltage range (2.7–4.25 V or 2.75–4.35 V depending on model) triggers lithium plating or electrolyte oxidation, reducing cycle life.
• Pre-Conditioning Requirement: New cells must be pre-conditioned at 25°C before first use to stabilize the solid-electrolyte interface and ensure rated capacity delivery.

These steps ensure safe first-use activation and ongoing operation of the semi-solid-electrolyte pouch cells. Observe all voltage, temperature, and BMS requirements to maintain reliability across robotic and energy-storage applications.

Required Equipment: Compatible BMS with over-discharge, over-current, and cell-balancing protection, Temperature-controlled environment (25°C for pre-conditioning), Calibrated battery cycler or charger capable of 1C rate

1. Pre-condition the cell
   Place the new cell in a 25°C environment for at least 2 hours to stabilize the electrolyte before initial charge.
2. Inspect physical integrity
   Visually check the pouch for nicks, punctures, or bulging; discard any damaged cell immediately.
3. Connect to BMS
   Wire the cell to a BMS configured with cutoff voltages corresponding to the model-specific operating window and a cell-balancing threshold.
4. Apply initial charge
   Charge the cell at 1C rate until the upper voltage limit is reached, monitoring temperature to stay below 45°C.
5. Verify discharge performance
   Discharge the cell at 3C rate to the lower voltage cutoff and confirm capacity meets the nominal rating.
6. Store properly when idle
   Seal the cell in the moisture-barrier vacuum bag and keep it in a dry, cool environment below 25°C for long-term storage.
7. Monitor during operation
   Continuously log cell voltage and temperature; shut down immediately if voltage drops below 2.7 V or the pouch surface exceeds 60°C.

This variable series provides two semi-solid electrolyte pouch cells (25.5Ah and 58Ah) with high energy density in compact form factors, supporting 1C charge/3C discharge and wide temperature discharge (-20°C to +60°C), but requires a compatible BMS and careful temperature management during charging and long-term exposure.

Positive

• High energy density in compact pouch: Up to 58Ah capacity in a thin pouch format (10.0 mm × 161 mm × 231 mm) enables integration into space-constrained robotic platforms without sacrificing runtime.
• Wide temperature discharge range: Discharge from -20°C to +60°C allows operation in both indoor and outdoor environments, supporting diverse robotic applications without active thermal management.

Trade-offs

• Mandatory compatible BMS: A battery management system with over-discharge, over-current, and cell balancing protection is required, adding system complexity and cost for integration.
• Extended exposure temperature limit: Cells must not be exposed to temperatures above 60°C for prolonged periods, limiting thermal runaway tolerance and requiring careful enclosure design in high-heat environments.

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).