NCM811 Dry Pouch Cell (1.12Ah) – Fast-Charging |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
This dry pouch cell requires moisture-free storage to maintain cathode integrity. Electrolyte filling must be performed under controlled conditions to prevent contamination.
- Moisture Sensitivity: The ultra-high nickel cathode is sensitive to moisture and requires storage in a dry room or glovebox.
This procedure describes the filling and activation of the dry pouch cell for electrochemical testing. Safe handling of the cell and electrolyte is required due to chemical hazards.
Required Equipment: Glovebox with inert atmosphere, Electrolyte solution
- Prepare Glovebox
Transfer the dry pouch cell into a glovebox with an inert atmosphere to avoid moisture exposure. - Fill with Electrolyte
Inject the appropriate electrolyte into the pouch cell through the sealable opening without introducing air. - Seal Pouch
Seal the pouch cell using a heat sealer to prevent electrolyte leakage and maintain hermeticity. - Activate Cell
Allow the cell to rest for wetting and then perform formation cycles within the designated voltage range.
How does the NP ratio of 1.130 influence fast-charge performance and safety in this NCM811/graphite dry pouch cell?
The NP ratio of 1.130 provides a highly regulated fast-charge safety balance by ensuring the negative electrode capacity exceeds the positive, preventing lithium plating during high-rate charging. This ratio is critical for maintaining cycle stability at the 4.2 V cutoff while enabling the 1.12 Ah nominal capacity target after activation.
What formation protocol is recommended for activating the dry pouch cell to achieve the 205 mAh/g cathode capacity?
The cell is supplied as a dry assembly without electrolyte and requires the researcher to infuse their own electrolyte and execute a formation cycling protocol appropriate for NCM811 and graphite chemistries. The cathode baseline specific capacity of 205 mAh/g and anode 345 mAh/g are baseline values achieved after activation, typically using a low-rate formation cycle to establish the solid electrolyte interphase.
What are the environmental requirements for handling and storing this dry pouch cell prior to electrolyte filling?
The dry cell assembly is moisture-sensitive and should be stored and handled in a dry, inert atmosphere such as an argon-filled glovebox with low water and oxygen content. The 12 μm PE + 2 μm Al2O3 ceramic separator provides mechanical integrity, but exposure to ambient air can degrade the dry electrodes and compromise the benchmarking fidelity.
This 1.12 Ah dry pouch cell with ultra-high nickel NCM811 cathode and high-rate graphite anode is optimized as a baseline platform for fast-charge electrolyte validation. Delivered without electrolyte, it requires user infusion and activation cycling to achieve its rated capacity.
Positive
- High-fidelity benchmarking platform: Assembled as a dry pouch cell without electrolyte, this configuration provides a controlled baseline to eliminate variables during fast-charge electrolyte formulation verification and localized polarization growth modeling.
- Regulated NP ratio for safety: The negative-to-positive capacity ratio of 1.130 is precisely balanced to ensure safe fast-charge operation, minimizing the risk of lithium plating during high-rate cycling.
Trade-offs
- Requires user electrolyte infusion: Delivered as a dry pouch cell without liquid electrolyte, the end user must perform electrolyte filling and wetting steps before any electrochemical testing can commence.
- Capacity requires activation cycling: The nominal 1.12 Ah capacity is a target after activation; initial cycling and formation protocols are necessary to reach the stated high-rate baseline performance.
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).
