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ATOMFAIR® a small cluster of metallic 304 and 316L stainless steel wave spring washers on a white background.

304/316L SS Wave Springs 15.4×1.1mm CR2032 ATOMFAIR®

Price range: $130.00 through $210.00

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.

ASTM A240 304/316L stainless wave springs for CR2032 coin cells, 15.4×1.1 mm, ±0.02 mm tolerance, 5–30 N force, ≥10,000 cycles, 1000/pack. Order now.

SKU: AFMSMDNW051
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ATOMFAIR 304/316L STAINLESS STEEL WAVE SPRINGS 15.4MM

RESEARCH GRADE MATERIAL

Product Overview
ATOMFAIR® 304/316L Stainless Steel Wave Springs 15.4mm is a coin cell spring for battery research and laboratory procurement. Key specifications include Product Name: ATOMFAIR® 304/316L Stainless Steel Wave Springs; Spring Type: Wave Spring (Belleville); Material Options: 304 Stainless Steel/316L Stainless Steel (Compliant with ASTM A240); Dimensions (Diameter × Free Height): 15.4 × 1.1 mm (Default); Model Compatibility: CR2032 (Compatible with all CR20 Series Internal Dimensions). It is organized for Lab Accessories & Consumables workflows.

ATOMFAIR® 304/316L Stainless Steel Wave Springs
ITEM DESCRIPTION
Product Name ATOMFAIR® 304/316L Stainless Steel Wave Springs
Spring Type Wave Spring (Belleville)
Material Options 304 Stainless Steel / 316L Stainless Steel (Compliant with ASTM A240)
Dimensions (Diameter × Free Height) 15.4 × 1.1 mm (Default)
Model Compatibility CR2032 (Compatible with all CR20 Series Internal Dimensions)
Packaging Specification 1000 Pieces/Pack
Core Performance Parameters Spring Force Range 5 N–30 N
Large Contact Area
Small Footprint
Fatigue Life ≥10,000 cycles
304: General Corrosion Resistant
316L: Sulfide/Chloride Ion Corrosion Resistant, High Temperature Resistant
Optimal Application Scenarios Most routine testing, thin electrodes, low-loading batteries; universal preferred choice
Customization Options For other sizes, models, 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 most routine electrochemical testing, thin electrodes, low-loading batteries, and all systems requiring stable cell internal pressure with superior corrosion resistance.
PACKAGING: 1000 pieces/pack. 100% dimensional inspection, spring force calibration, surface quality 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®

This spring must be operated within the specified force range (5–30 N) to prevent plastic deformation and ensure consistent contact pressure. Material selection (304 or 316L) must be based on electrolyte corrosivity and operating temperature to avoid corrosion-induced failure.

  • Force Constraint: Apply only within the 5–30 N spring force range to maintain electrochemical contact without permanent set.
  • Fatigue Limit: Replace the spring after 10,000 cycles to ensure force stability and avoid mechanical failure.
  • Material Compatibility: Select 304 stainless steel for general corrosion resistance or 316L for sulfide/chloride-containing electrolytes and high-temperature environments.
  • Cleanliness Requirement: Use the spring directly in a glovebox without additional cleaning as it is supplied oil-free and impurity-free.
  • Dimensional Fit: Ensure the spring's 15.4 mm diameter and 1.1 mm free height match the CR2032 pocket dimensions to prevent misalignment.

What are the key differences between the 304 stainless steel and 316L stainless steel wave spring options, and how do they affect corrosion resistance in battery testing?

The 316L stainless steel variant is specifically designed for sulfide/chloride ion corrosion resistance and high-temperature environments, while the 304 stainless steel offers general corrosion resistance for routine testing. Both comply with ASTM A240 and share identical spring force (5–30 N) and fatigue life (≥10,000 cycles) specifications. The choice depends on the corrosivity of the electrolyte system; for example, sulfide solid-state batteries or high-voltage systems (>4.5 V) benefit from 316L, whereas conventional Li-ion/Na-ion batteries can use 304.

Are these wave springs compatible with CR2032 coin cells, and can they be used with thin electrodes or low-loading battery configurations?

Yes, these wave springs are specifically designed for CR2032 and all CR20 series internal dimensions, with a diameter of 15.4 mm and free height of 1.1 mm. Their spring force range of 5–30 N, large contact area, and small footprint make them ideal for routine testing, thin electrodes, and low-loading batteries, ensuring stable internal pressure without damaging delicate electrodes.

Do these wave springs require any pre-cleaning or preparation before use in a glovebox for battery assembly?

No, the wave springs are shipped fully prepared: 100% dimensional inspected, spring force calibrated, and surface quality verified to be oil-free, burr-free, and impurity-free. They can be used directly for battery assembly inside gloveboxes without additional cleaning, reducing preparation time and contamination risk.

This 15.4 mm wave spring (Belleville) provides a spring force of 5–30 N with a fatigue life exceeding 10,000 cycles, offered in 304 or 316L stainless steel for corrosion resistance matching the electrolyte system. The fixed default dimensions require custom ordering for alternative sizes or coated variants.

Positive

  • Dual material options for corrosion resistance: Available in 304 stainless steel for general corrosion resistance and 316L for enhanced resistance to sulfide/chloride ions and higher temperatures, allowing matching to specific electrolyte chemistries.
  • Consistent spring force and high fatigue life: Spring force range of 5–30 N with fatigue life ≥10,000 cycles ensures stable internal cell pressure over extended testing, supported by 100% spring force calibration.

Trade-offs

  • Default size only; customization required for other dimensions: The wave spring is offered as default in 15.4 mm diameter and 1.1 mm free height; other sizes, materials, or coatings require custom order via email, potentially extending lead times.
  • Uncoated stainless steel contact surfaces: The standard spring is uncoated 304 or 316L stainless steel; for applications demanding ultra-low contact resistance (e.g., EIS, micro-current), coated variants (gold, aluminum) are available as separate products but not in this SKU.

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).

Material

304SS, 316SS

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