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ATOMFAIR® three Kapton window coin cell case sets with dual sided translucent yellow windows and perforated metallic rims on a white background.

Kapton Window Coin Cell Set CR2032 25–50μm ATOMFAIR®

$89.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

Research-grade Kapton window coin cell case set for in-situ battery characterization. 25-50μm windows with ≥85% transmittance, 316L/304 SS, CR2032. Order now.

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Description

ATOMFAIR® Kapton Window Coin Cell Case Sets

RESEARCH GRADE MATERIAL

Product Overview
Kapton window coin cell cases for in-situ battery characterization. Features polyimide (Kapton) film windows with thickness 25–50 μm and optical transmittance ≥85% on 316L/304 stainless steel substrates, 15.8 × 0.5 mm spacers, and 15.4 × 1.1 mm springs. Engineered with superior electrolyte corrosion resistance to enable real-time optical observation, delivering standardized hardware support for in-situ optical characterization, in-situ Raman/IR spectroscopy, and in-situ microscopy observation. If you require other sizes, models, and materials, please email inquiry@atomfair.com for customization.

ATOMFAIR® Kapton Window Coin Cell Case Sets
ITEM DESCRIPTION
Product Name ATOMFAIR® Kapton Window Coin Cell Case Sets
Model CR2032
Window Material & Properties Polyimide (Kapton) Film, Thickness 25–50 μm, Optical Transmittance ≥85%, Electrolyte Corrosion Resistant
Case Material 316L/304 Stainless Steel with Kapton Window
Included Components Kapton Window Positive Case + Negative Case + 15.8 × 0.5 mm Spacers + 15.4 × 1.1 mm Springs
Packaging Specification 5 Sets/Pack
Intended Use In-situ optical characterization, in-situ Raman/IR spectroscopy, in-situ microscopy observation, and real-time electrochemical monitoring in academic R&D
Customization Options For other sizes, models, and materials, please email inquiry@atomfair.com to request customization.

Research-Grade Core Quality Advantages
  • Uniform High-Precision Tolerance Control: All component dimensions strictly controlled within ±0.02 mm, ensuring perfect matching across different batches and components, completely eliminating assembly gaps and uneven pressure issues caused by dimensional errors.
  • Full Material Gradient Coverage: Provides a complete material selection from basic to high-end, allowing flexible selection based on corrosivity, voltage range, and testing precision requirements of your experimental system, avoiding experimental failure due to mismatched consumables.
  • Rigorous Electrochemical Compatibility Verification: All materials have undergone constant potential polarization, cyclic voltammetry, and other electrochemical tests to ensure no side reactions within a -0.5 V to 5.0 V voltage range, guaranteeing no interference with battery performance test results.
  • Standardized Batch Production: Fully automated production and quality control ensures highly consistent product performance within and across batches, effectively reducing experimental systematic errors.

APPLICATION SCOPE: Precision assembly and real-time monitoring for in-situ optical characterization, in-situ Raman/IR spectroscopy, in-situ microscopy observation, and advanced electrochemical research requiring optical access to active materials during cycling.
PACKAGING: 5 sets/pack. 100% dimensional inspection, window optical clarity verification, sealing performance testing, and appearance inspection before shipment, ensuring oil-free, burr-free, and impurity-free conditions. Can be used directly for battery assembly inside gloveboxes.
IMPORTANT NOTICE: This series is a one-stop assembly solution for coin cells dedicated to electrochemical research. Default accompanying accessories are made of 304 stainless steel. If other materials or special dimensions are required, please email inquiry@atomfair.com for customization.



This series is a one-stop assembly solution for coin cells dedicated to electrochemical research, comprehensively covering the three mainstream models CR2032, CR2025, and CR2016. It provides a full material and specification selection of three core components—positive/negative electrode cases, conductive spacers, and elastic springs. Independent purchase of single components is supported, and pre-matched complete assembly kits are also available. Fully compatible with all cutting-edge research systems, including conventional lithium-ion batteries, sodium-ion batteries, all-solid-state batteries, lithium-air batteries, and high-voltage batteries, it provides standardized hardware support for the accuracy and reproducibility of experimental data.
Important Note: Default accompanying accessories are made of 304 stainless steel. For accessories made of other materials, please email inquiry@atomfair.com for customization.

I. Positive/Negative Electrode Cases
Type Classification Material / Special Structure Compatible Models Core Performance Parameters Optimal Application Scenarios
Basic Universal 304 Stainless Steel CR2032/CR2025/CR2016 Dimensional Tolerance ±0.02 mm
Sealing Pressure ≥5 MPa
Operating Temp. -40°C to 120°C		 Conventional Li-ion/Na-ion batteries, aqueous battery basic testing, batch prototype preparation
Basic Universal 316L Stainless Steel CR2032/CR2025/CR2016 Dimensional Tolerance ±0.02 mm
Sealing Pressure ≥6 MPa
Operating Temp. -40°C to 150°C		 Sulfide solid-state batteries, high-voltage batteries (>4.5 V), long-term cycling tests, highly corrosive systems
High-Performance Coated Aluminum Coated CR2032/CR2025/CR2016 Coating Thickness 5–10 μm
Adhesion ≥5B Grade
Volume Resistivity ≤3×10⁻⁸ Ω·m		 Lightweight batteries, low contact resistance precision testing, systems sensitive to metal ion contamination
High-Performance Coated Titanium Coated CR2032/CR2025/CR2016 Coating Thickness 3–8 μm
Excellent Biocompatibility
Resistant to Strong Acid/Base Corrosion		 Bio-batteries, aqueous zinc batteries, strongly acidic/alkaline electrolyte systems
High-Performance Coated Nickel Coated CR2032/CR2025/CR2016 Coating Thickness 5–12 μm
Excellent Weldability
Atmospheric Corrosion Resistant		 Battery structures requiring tab welding, pilot-scale batch production, routine electrochemical testing
High-Performance Coated Gold Coated CR2032/CR2025/CR2016 Coating Thickness 0.5–2 μm
Contact Resistance ≤1 mΩ
Superior Chemical Stability		 Ultra-precision electrochemical testing, EIS testing, micro-current testing, in-situ characterization
Specialized Research Li-Air Mesh Type CR2032/CR2025/CR2016 Pore Size 0.2–0.5 μm
Waterproof Rating IP67
Uniform Gas Distribution Design		 Lithium-air batteries, lithium-oxygen batteries, gas-involved reaction battery systems
Specialized Research Kapton Window Type CR2032/CR2025/CR2016 Window Thickness 25–50 μm
Optical Transmittance ≥85%
Electrolyte Corrosion Resistant		 In-situ optical characterization, in-situ Raman/IR spectroscopy, in-situ microscopy observation

II. Conductive Spacers
Default Size: Φ15.8 × 0.5 mm, compatible with the internal dimensions of all CR20 series cell cases. Other thicknesses and special sizes are customizable; please email inquiry@atomfair.com for customization.
Material Available Size (Diameter × Thickness) Core Performance Parameters Optimal Application Scenarios
99.5% Industrial Pure Aluminum Φ15.8 × 0.5 mm (Default) Dimensional Tolerance ±0.02 mm
Volume Resistivity 2.7×10⁻⁸ Ω·m
No Electrochemical Side Reactions		 Precision experiments requiring high contact resistance, conventional Li-ion/Na-ion batteries
304 Stainless Steel Φ15.8 × 0.5 mm (Default) Dimensional Tolerance ±0.02 mm
High Mechanical Strength
General Corrosion Resistant		 Most routine testing scenarios, aqueous batteries, low-to-medium voltage systems
316L Stainless Steel Φ15.8 × 0.5 mm (Default) Dimensional Tolerance ±0.02 mm
Sulfide/Chloride Ion Corrosion Resistant
High Temperature Resistant		 Sulfide solid-state batteries, high-voltage batteries, highly corrosive systems, long-term cycling tests

III. Elastic Springs
Default Size: φ15.4 × 0.3 mm, compatible with the internal dimensions of all CR20 series cell cases. Other heights and special sizes are customizable; please email inquiry@atomfair.com for customization.
Spring Type Available Materials Available Size (Diameter × Free Height) Core Performance Parameters Optimal Application Scenarios
Wave Spring (Belleville) Al Coated / 304 SS / 316L SS / Au Coated SS φ15.4 × 1.1 mm (Default) Spring Force Range 5 N–30 N
Large Contact Area
Small Footprint
Fatigue Life ≥10,000 cycles		 Most routine testing, thin electrodes, low-loading batteries; universal preferred choice
Conical Spring Al Coated / 304 SS / 316L SS / Au Coated SS φ15.4 × 1.1 mm (Default) Spring Force Range 10 N–50 N
Good Self-Centering
Strong Anti-Buckling
Fatigue Life ≥10,000 cycles		 Thick electrodes, high-loading batteries, vibration environment testing, systems requiring precise pressure control

IV. Complete Assembly Kit Specifications
Kit Type Included Components Corresponding Battery Model Configurable Options
Standard Assembly Kit Positive Case + Negative Case + Spacer + Spring CR2032/CR2025/CR2016 All materials freely combinable
Spacer thickness customizable
Spring height customizable
Li-Air Dedicated Kit Mesh Positive Case + Negative Case + Waterproof Breathable Membrane + Spacer + Spring CR2032/CR2025/CR2016 304/316L SS material optional
Spacer thickness customizable
Spring height customizable
In-Situ Characterization Kit Kapton Window Cell Case + Gold Coated Spacer + Gold Coated Spring CR2032/CR2025/CR2016 Window thickness optional
Spacer thickness customizable
Spring height customizable

International Quality Standards
  • Stainless steel materials comply with ASTM A240 international standard.
  • Pure aluminum materials comply with ASTM B209 international standard.
  • All coating thicknesses are uniform, with adhesion meeting ASTM B571 standard.
  • 100% dimensional inspection, sealing performance testing, and appearance inspection before shipment.
  • Oil-free, burr-free, and impurity-free; ready for direct use in glovebox battery assembly.
TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official quotations.
EMAIL: inquiry@atomfair.com
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

The polyimide windows in these case sets are engineered to resist corrosion from standard battery electrolytes. Optical transmittance above 85% must be maintained during in-situ characterization to ensure reliable data collection.

  • Electrolyte Corrosion Resistance: The Kapton windows withstand prolonged exposure to common lithium battery electrolytes without degradation.
  • Optical Transmittance Requirement: The windows provide at least 85% transmittance for visible light to support optical, Raman, and IR observation.

How does the Kapton window thickness of 25–50 μm affect optical transmittance and cell sealing integrity for in-situ measurements?

The 25–50 μm polyimide film provides optical transmittance ≥85%, balancing visibility with mechanical robustness. The window thickness is optimized to maintain seal integrity under coin cell crimping pressures, with all component dimensions strictly controlled within ±0.02 mm to prevent assembly gaps or uneven pressure.

Is the Kapton window coin cell case chemically compatible with ether-based electrolytes for lithium-sulfur battery studies?

Yes, the Kapton film and 316L/304 stainless steel substrates are electrolyte corrosion resistant and have been electrochemically verified via constant potential polarization and cyclic voltammetry across -0.5 V to 5.0 V with no side reactions. This includes compatibility with common ether-based electrolytes, enabling in-situ spectroscopy during lithium-sulfur cycling without interference.

Do the Kapton window coin cell cases require any pre-cleaning or drying before assembly in an argon-filled glovebox?

No pre-cleaning or drying is required. Each set undergoes 100% dimensional inspection, window optical clarity verification, sealing performance testing, and appearance inspection, ensuring oil-free, burr-free, and impurity-free condition. They are ready for direct use inside gloveboxes without any preconditioning.

This coin cell case set with integrated Kapton windows enables real-time optical and spectroscopic monitoring of battery electrodes during cycling, with verified electrochemical stability from -0.5V to 5.0V and precision dimensional tolerances of ±0.02 mm for consistent assembly. The thin polyimide windows and limited CR2032 format require careful handling and custom ordering for other configurations.

Positive

  • Optical access for in-situ characterization: Polyimide (Kapton) windows with thickness 25–50 μm and ≥85% transmittance allow real-time optical observation, Raman/IR spectroscopy, and microscopy during electrochemical cycling without compromising cell integrity.
  • Verified electrochemical compatibility: Materials have passed constant potential polarization and cyclic voltammetry tests, demonstrating no side reactions within -0.5 V to 5.0 V, ensuring non-interference with battery performance measurements.

Trade-offs

  • Thin window fragility: The 25–50 μm polyimide film windows, while optically transparent, are mechanically delicate and may be susceptible to puncture or deformation during cell crimping or under high internal pressure, requiring careful handling.
  • Standard size and material fixed: Only the CR2032 format with Kapton windows is supplied as standard; alternative dimensions, models, or window materials require custom order, limiting immediate applicability for non-standard cell configurations.

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). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

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