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ATOMFAIR® small group of gold au-coated wave spring washers clustered on a white background.

Au-Coated Wave Springs 15.4×1.1 mm Research Grade 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 Au-coated stainless steel wave springs for coin cell EIS testing; 15.4×1.1 mm, 0.5–2 μm coating, ≤1 mΩ; 10 pcs/pack. Order now.

SKU: AFMSFIGD900
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ATOMFAIR AU-COATED WAVE SPRINGS 15.4×1.1MM RESEARCH GRADE

RESEARCH GRADE MATERIAL

Product Overview
ATOMFAIR® Au-Coated Wave Springs 15.4×1.1mm Research Grade is a coin cell spring for battery research and laboratory procurement. Key specifications include Product Name: ATOMFAIR® Au-Coated Wave Springs; Spring Type: Wave Spring (Belleville); Material: Gold-Coated Stainless Steel (Coating Thickness 0.5–2 μm, Contact Resistance ≤1 mΩ); Dimensions (Diameter × Free Height): 15.4 × 1.1 mm (Default); Packaging Specification: 10 Pieces/Pack. It is organized for Lab Accessories & Consumables workflows.

ATOMFAIR® Au-Coated Wave Springs
ITEM DESCRIPTION
Product Name ATOMFAIR® Au-Coated Wave Springs
Spring Type Wave Spring (Belleville)
Material Gold-Coated Stainless Steel (Coating Thickness 0.5–2 μm, Contact Resistance ≤1 mΩ)
Dimensions (Diameter × Free Height) 15.4 × 1.1 mm (Default)
Packaging Specification 10 Pieces/Pack
Core Performance Parameters Spring Force Range 5 N–30 N
Large Contact Area
Small Footprint
Fatigue Life ≥10,000 cycles
Superior Chemical Stability
Optimal Application Scenarios Ultra-precision electrochemical testing, EIS testing, micro-current testing, in-situ characterization, thin electrodes, low-loading batteries; universal preferred choice for most routine testing
Customization Options For other sizes and materials, please email 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 standardized testing for ultra-precision electrochemical experiments, EIS measurements, micro-current testing, in-situ characterization, thin-electrode low-loading batteries, and all routine testing systems requiring minimal contact resistance with a compact footprint.
PACKAGING: 10 pieces/pack. 100% dimensional inspection, coating thickness verification, 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 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 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 polyimide 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 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 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 polyimide 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 institutional quotations.
EMAIL: INQUIRY@ATOMFAIR.COM
Manufacturer: Atomfair LLC
Brand: ATOMFAIR®

What performance advantages justify using a gold-coated wave spring over standard 304 stainless steel for EIS and micro-current coin cell testing?

The gold-coated wave spring provides contact resistance ≤1 mΩ and superior chemical stability, unlike standard 304 stainless steel which can develop surface oxides that increase contact resistance and introduce artifacts in EIS and micro-current measurements. The gold coating also prevents side reactions within a -0.5 V to 5.0 V range, as verified by constant potential polarization and cyclic voltammetry tests, ensuring no interference with battery performance results.

Can the 15.4×1.1 mm Au-coated wave spring be used directly with any CR2032 coin cell hardware, or does it require specific spacers or electrode cases?

Yes, the Au-coated wave spring is designed for coin cell assembly and is compatible with standard CR20 series cases, including CR2032, CR2025, and CR2016. For ultra-precision electrochemical testing, EIS, and in-situ characterization, pairing the gold-coated spring with a gold-coated spacer is recommended to maintain contact resistance ≤1 mΩ and avoid galvanic effects from dissimilar metals in the assembly.

What storage and handling procedures are critical to preserve the gold coating and contact resistance of Au-coated wave springs for research-grade coin cell assembly?

The Au-coated wave springs are shipped oil-free, burr-free, and impurity-free, ready for direct use in glovebox battery assembly. To preserve the 0.5–2 μm gold coating and maintain contact resistance ≤1 mΩ, store in a clean, dry environment and handle with clean gloves to avoid contamination and mechanical abrasion. The coating adhesion meets ASTM B571 standard, but the thin gold layer is susceptible to scratching if dragged against hard surfaces.

This gold-coated wave spring offers low contact resistance for precision electrochemical testing, but its fixed pack size and standard dimensions may constrain high-volume or custom applications.

Positive

  • Ultra-low contact resistance for precision measurements: Gold coating with contact resistance ≤1 mΩ ensures minimal voltage drop, critical for EIS and micro-current testing.
  • High fatigue life and consistent spring force: Rated for ≥10,000 cycles with spring force range 5-30 N, providing reliable and uniform pressure across repeated assembly.

Trade-offs

  • Fixed pack size limits high-throughput use: Sold in packs of 10 pieces, which may require frequent reordering for laboratories with high sample throughput.
  • Standard size only; customization requires contact: Available only in 15.4×1.1 mm dimensions; other sizes or materials require custom request via email, adding lead time.

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).

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