Pouch Cell Battery Test Fixture Stainless Steel 304 300kg ATOMFAIR®

Description

ATOMFAIR® ATM-PCBT-SS POUCH CELL BATTERY TEST FIXTURE (STAINLESS STEEL VERSION)

RESEARCH GRADE MATERIAL

Product Overview

The ATOMFAIR® hardware core matrix delivers a high-rigidity battery test fixture engineered to secure stable planar clamping fields during repetitive pouch cell expansion validation. Specifically optimized for academic professors, Ph.D. students, and corporate materials laboratory technicians conducting heavy battery cycle testing routines, this configuration features a premium stainless steel platform. The ATM-PCBT-SS Stainless Steel architecture features an integrated non-magnetic structural matrix that completely prevents signal interference across precise data acquisition channels. Utilizing a symmetric 4-corner screw locking closure backed by premium die spring buffers, it provides a highly uniform pressure interface that protects outer laminated cell films from abrasive scratch distortion.

Technical Specifications

FIXTURE SIZE (mm)	MAX LOAD (kg)	MAX CELL SIZE (mm)	STRUCTURAL DESCRIPTION
8 × 78 × 105	300 kg	≤ 10 × 48 × 75	Suitable for mini small cells, high structural rigidity plate layout with extended cycle lifespans.
8 × 90 × 107	300 kg	≤ 10 × 60 × 77	Compact size layout optimized for small pouch cells, ensuring uniform pressure distribution.
8 × 100 × 130	300 kg	≤ 10 × 70 × 100	Suitable for standard medium-sized cells, universally utilized across electrochemistry research laboratories.
8 × 120 × 160	500 kg	≤ 25 × 90 × 130	Standard high-pressure variant, reinforced stainless frame offering top-tier containment metrics.
9 × 120 × 160	500 kg	≤ 23 × 90 × 130	Reinforced high-pressure version, increased plate thickness with enhanced wear-resistant properties.
8 × 150 × 180	500 kg	≤ 25 × 120 × 150	Suitable for high-capacity cells, engineered to provide long-term load stability across aggressive cycles.
10 × 150 × 180	500 kg	≤ 23 × 120 × 150	Top-level high-load version, utilizing max material density to prevent geometric structural bending.
Alternative Materials	Full material customization available: 304 Stainless Steel (Default cost-effective rigid option), 316 Stainless Steel (Optimal electrolyte corrosion resistance for leakage/immersion), 201 Stainless Steel (Hardened basic cycle option), 7075-T6 / 6061-T6 Aluminum Alloy (Lightweight, anodized insulation), 5052-H32 Aluminum Alloy (Soft, flexible weldable leakage protective format), Carbon Steel (Lowest cost load bearing), PEEK / PPS / POM (Sub-micron mechanical accuracy, high precision), PP / HDPE (Zero swelling, fully electrolyte-resistant), and Acrylic (Optically clear transparent inspection plates).

Key Features & Advantages

Technical Advantage: Premium-grade solid stainless steel framework delivers top-tier structural rigidity, supporting continuous high-pressure cycles up to 500kg.
Technical Advantage: Calibrated 4-corner screw closure combined with high-rebound die spring buffers ensures uniform pressure profiles with zero mechanical sliding play.
Technical Advantage: Inherent non-magnetic parameters eliminate parasitic electrical field loops, ensuring uncompromised precision during battery analytical monitoring.
Technical Advantage: Highly customizable layout accommodates precise physical sizing modifications to seamlessly house cell thicknesses between 0.1 and 2 cm.

APPLICATION SCOPE: Long-term volumetric swelling analysis of multi-layer pouch cell battery chemistries, high-pressure galvanostatic cycle life profiling, multi-cell high-throughput laboratory rows, harsh electrolyte leakage/immersion validation, and cleanroom verification setups.

PACKAGING: Dispatched safely inside heavy-duty, impact-resistant industrial packing. Each individual assembly unit comes fully equipped with the selected stainless steel plates, matching precision die spring buffers, and corner locking hardware components.

IMPORTANT NOTICE: Materials intended strictly for scientific validation and laboratory prototyping applications. Abide by the structural sizing rule: maximum cell width and length must remain ≤ fixture parameters minus 30 mm to preserve proper clearing boundaries and protect delicate cell edge seals. For severe electrolyte immersion or leakage profiling, upgrading to an premium 316 stainless alloy configuration is highly recommended.

TAILORED SOLUTIONS FOR RESEARCH

Contact our engineering team for technical support, personalized configuration variants, or custom institutional quotations.

EMAIL: inquiry@atomfair.com

Manufacturer: Atomfair LLC

Brand: ATOMFAIR®

Constraints

This fixture applies a calibrated clamping force to pouch cells during cycle testing. Material selection must account for electrolyte exposure and load requirements.

Load Capacity: Maximum theoretical load varies by fixture size, with standard models supporting 300 kg and reinforced versions up to 500 kg.
Dimensional Compatibility: The maximum pouch cell size must be at least 30 mm smaller than the fixture's length and width in both dimensions.
Material Corrosion Resistance: Stainless steel 316 offers the best electrolyte corrosion resistance, while PEEK and PPS provide excellent chemical resistance without swelling.
Clamping Mechanism: Four-corner screw locking with a die spring buffer ensures even pressure distribution and consistent clamping force during cycling.
Customization Availability: Fixture dimensions and material can be customized to match specific cell geometries and testing environments.

HowTo

This procedure describes the preparation of the stainless steel test fixture for pouch cell cycling. Proper alignment and uniform tightening ensure reproducible pressure and safe operation.

Select Fixture Size
Select a fixture size whose internal area is at least 30 mm longer and wider than the pouch cell dimensions.
Position the Pouch Cell
Place the pouch cell centrally between the two clamping plates with the tabs aligned to the fixture edge.
Apply Clamping Pressure
Tighten each of the four corner screws sequentially and evenly until the die spring buffer compresses and the desired working pressure is reached.

FAQ

What are the performance trade-offs between 304 and 316 stainless steel for the pouch cell fixture in long-term cycling tests?

316 stainless steel offers superior corrosion resistance against electrolyte leakage and immersion, with stable performance across high and low temperature ranges, making it optimal for prolonged cycling tests. 304 stainless steel is cost-effective and resists regular electrolyte contact but provides lower corrosion resistance. Both are non-magnetic and support maximum loads up to 500 kg in appropriate fixture sizes.

What is the maximum pouch cell size that can be used with the 120×160 mm stainless steel fixture?

The maximum compatible cell dimensions are ≤90 mm × 130 mm (length × width) with a thickness of 0.1–2 cm, calculated by subtracting 30 mm from the fixture length and width per the sizing rule. This clearance ensures safe clamping space and stable, reproducible cycle test data.

How does the die spring buffer mechanism prevent cell damage during high-pressure cycling tests?

The 4-corner screw locking paired with die spring buffers provides compliant force control that compensates for pouch cell expansion and contraction during cycling, maintaining uniform pressure without over-compression. This design prevents pressure drift and mechanical damage, ensuring stable long-term cycle testing data.

Assessment

This stainless steel pouch cell test fixture provides high rigidity and non-magnetic operation for stable battery cycle testing, but requires precise fixture size matching to cell dimensions and may need customization for non-standard cell sizes.

Positive

High rigidity and load capacity: Stainless steel construction offers higher rigidity and load capacity up to 500 kg, ensuring dimensional stability under long-term high-pressure cycling tests.
Non-magnetic for data integrity: The stainless steel fixture is non-magnetic, preventing any interference with battery test data during cycling.

Trade-offs

Precise cell size matching required: The fixture size must be selected such that cell length and width are exactly 30 mm less than the fixture dimensions, limiting off-the-shelf compatibility to a specific cell size per fixture.
Customization needed for non-standard cells: Cells that do not fit within the standard size options require custom fixture sizing, which involves contacting the supplier and potentially longer lead times.

Quality Standards & Performance Verification

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.

Shipping & Returns

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).