304 STAINLESS STEEL THREE-LAYER FIXTURE WITH PRESSURE SENSOR VERSIONRESEARCH GRADE EQUIPMENT
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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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Operational integrity of this fixture requires strict adherence to dimensional matching between cell and fixture and careful handling of the integrated pressure sensor. The three-layer structure with die spring buffers imposes specific limits on working pressure and cell thickness for uniform load distribution.
- Cell-to-fixture dimension rule: Cell length and width must each be exactly 30 mm less than the corresponding fixture dimensions to ensure proper fit and uniform pressure distribution.
- Pressure sensor cable management: Route the pressure sensor data cable away from electromagnetic interference sources to prevent signal corruption and ensure accurate real-time monitoring.
- Material compatibility with electrolytes: Select the fixture material based on expected electrolyte exposure; 304 stainless steel is suitable for routine contact, while 316 stainless steel is recommended for leakage or immersion testing.
- Working pressure limitation: Do not exceed the load capacity of the three-layer structure; the standard 400 kg working pressure can be increased up to 600 kg only if the specific fixture size is rated for that load.
- Three-layer spacing adjustment: Adjust the three-layer spacing to match the cell thickness, ensuring that the die spring buffers are compressed to provide consistent clamping force across all layers.
This procedure outlines the steps to prepare the three-layer fixture with integrated pressure sensor for accurate and repeatable pouch cell cycle testing. Correct execution ensures uniform pressure distribution and reliable real-time pressure monitoring.
Required Equipment:
- Select fixture size
Ensure the chosen fixture dimensions allow the cell to be 30 mm smaller in both length and width. - Adjust three-layer spacing
Set the spacing between layers to accommodate the cell thickness and allow the die spring buffers to engage properly. - Insert the cell
Place the pouch cell between the layers, centering it to avoid edge contact with the fixture. - Tighten the four-corner screws
Evenly tighten all four corner screws to compress the die spring buffers and achieve the desired clamping pressure (e.g., 400 kg). - Connect the pressure sensor cable
Attach the sensor data cable to the external acquisition equipment, ensuring the cable is not routed near sources of electromagnetic noise. - Verify pressure reading
Check the real-time pressure reading from the acquisition system and adjust screw tension if necessary to reach the target working pressure. - Begin cycle testing
Confirm that all connections are secure and the pressure is stable before starting the battery cycle test protocol.
How does the maximum working pressure vary across available fixture sizes and what are the implications for testing different cell thicknesses?
The standard working pressure is 400 kg for most sizes, but larger fixtures (10×120×160 mm and above) support up to 600 kg due to reinforced three-layer structure. The compatible battery thickness range is 0.1–2 cm, with three-layer spacing adjustable per cell thickness; higher-pressure variants accommodate larger cells while maintaining uniform pressure distribution.
Can the integrated pressure sensor be connected to existing laboratory data acquisition systems?
Yes, the pressure sensor layer includes data cables that can be connected directly to external acquisition equipment for real-time monitoring of test pressure.
Which material option offers the best electrolyte resistance for long-term cycling tests involving potential electrolyte leakage?
According to the product specifications, materials such as 316 stainless steel (optimal electrolyte corrosion resistance), PP (fully electrolyte-resistant with no swelling), and PEEK (optimal electrolyte resistance) provide superior protection against electrolyte leakage compared to standard 304 stainless steel.
The ATM-PCBT-SS304-3L is a three-layer pouch cell fixture with an integrated pressure sensing layer for real-time monitoring, offering standard 400 kg clamping force (up to 600 kg) and uniform pressure distribution via 4-corner screw locking and die spring buffers, suitable for multi-cell cycle testing with cell thicknesses from 0.1 to 2 cm.
Positive
- Integrated pressure sensing layer: The pressure sensor is an essential structural component, enabling real-time pressure monitoring via external acquisition data cables without data interference, addressing a key informational gap in pouch cell testing.
- Uniform pressure distribution across layers: Three-layer synchronous clamping with 4-corner screw locking and die spring buffers delivers extremely uniform pressure up to 600 kg, ensuring stable and repeatable cycle test data for multi-cell validations.
Trade-offs
- Cell size limited by fixture dimensions: Maximum cell length and width are fixture dimensions minus 30 mm, and cell thickness is restricted to 0.1–2 cm, requiring careful size matching to avoid over- or under-clamping.
- Pressure sensor requires external acquisition: The pressure sensor data cable must be connected to external acquisition equipment for real-time monitoring, adding infrastructure dependency and potential setup complexity in laboratory 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).
