ATOMFAIR® Al-Clad Conical Springs

RESEARCH GRADE MATERIAL

Product Overview

Premium Al-clad conical springs (15.4 × 1.1 mm) for battery research. Features specialized aluminum-clad surface treatment on high-performance conical spring geometry, delivering a spring force range of 10 N–50 N with good self-centering performance and strong anti-buckling capability. Engineered to provide stable cell internal pressure with fatigue life ≥10,000 cycles, making it ideal for thick electrodes, high-loading batteries, vibration environment testing, and systems requiring precise pressure control. Customizable sizing variants are available upon request. If you require other sizes, models, and materials, please email inquiry@atomfair.com for customization.

ATOMFAIR® Al-Clad Conical Springs

ITEM	DESCRIPTION
Product Name	ATOMFAIR® Al-Clad Conical Springs
Spring Type	Conical Spring
Material & Surface Treatment	Aluminum-Clad Stainless Steel (Coating Thickness 5–10 μm, Adhesion ≥5B Grade)
Dimensions (Diameter × Free Height)	15.4 × 1.1 mm (Default)
Model Compatibility	CR2032 (Compatible with all CR20 Series Internal Dimensions)
Packaging Specification	60 Pieces/Pack
Core Performance Parameters	Spring Force Range 10 N–50 N Good Self-Centering Performance Strong Anti-Buckling Capability Fatigue Life ≥10,000 cycles Stable Cell Internal Pressure
Optimal Application Scenarios	Thick electrodes, high-loading batteries, vibration environment testing, systems requiring precise pressure control
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 standardized testing for thick-electrode high-loading batteries, vibration environment testing, and all systems requiring precise pressure control with stable cell internal pressure maintenance.

PACKAGING: 60 pieces/pack. 100% dimensional inspection, coating thickness verification, spring force calibration, 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®

Aluminum-Clad Stainless Steel

Al-Clad Conical Springs 15.4mm CR2032 ATOMFAIR®