Description

ATOMFAIR® CR2032 Al-Clad Coin Cell Case Sets

RESEARCH GRADE MATERIAL

Product Overview

Al-clad coin cell cases for high-voltage battery research. Features aluminum-clad positive cases with 316L/304 stainless steel substrates, 15.8 × 0.5 mm spacers, and 15.4 × 1.1 mm springs. Engineered to suppress anodic aluminum dissolution and parasitic side reactions under oxidative potentials exceeding 4.5 V, delivering standardized hardware support for accurate and reproducible experimental data. If you require other sizes, please email inquiry@atomfair.com for customization.

ATOMFAIR® Al-Clad Coin Cell Case Sets

ITEM	DESCRIPTION
Product Name	ATOMFAIR® Al-Clad Coin Cell Case Sets
Packaging Specification	100 Sets/Pack
Positive Case Material	Aluminum-Clad (5–10 μm Coating Thickness, Adhesion ≥5B Grade) on 316L/304 Stainless Steel Substrate
Included Components	Al-Clad Positive Cases, 316L/304 Stainless Steel Negative Cases, 15.8 × 0.5 mm Spacers, 15.4 × 1.1 mm Springs
Intended Use	Specialized cell cases for high-voltage battery research (>4.5 V) in academic R&D environments
Customization Options	For other sizes or custom specifications, 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: Standardized testing and prototype preparation for high-voltage lithium-ion batteries, all-solid-state batteries, lithium-air batteries, and other cutting-edge research systems requiring anodic stability above 4.5 V.

PACKAGING: 100 sets/pack. 100% dimensional inspection, 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®

Constraints

These coin cell cases incorporate an aluminum-clad coating on 316L/304 stainless steel to suppress anodic dissolution and parasitic reactions at potentials above 4.5 V. The coating integrity and adhesion grade must be preserved to ensure reliable performance in high-voltage battery research.

Anodic Dissolution Suppression: The aluminum cladding is designed to prevent anodic dissolution only under oxidative potentials exceeding 4.5 V, necessitating strict voltage compliance during operation.
Coating Adhesion Requirement: The coating adhesion must meet or exceed ASTM Grade 5B to avoid delamination during crimping and cell assembly processes.
Thickness Tolerance: The aluminum cladding thickness is specified as 5–10 μm, and deviations outside this range may compromise corrosion resistance.

FAQ

How does the aluminum-clad coating on stainless steel prevent anodic dissolution compared to pure aluminum or stainless steel cases at potentials above 4.5 V?

The aluminum-clad coating (5–10 μm thickness, adhesion ≥5B grade) on the 316L/304 stainless steel positive case suppresses anodic aluminum dissolution and parasitic side reactions under oxidative potentials exceeding 4.5 V. Electrochemical verification tests (constant potential polarization and cyclic voltammetry) confirm no side reactions within -0.5 V to 5.0 V, ensuring accurate experimental data.

Are these Al-clad coin cell cases suitable for testing thick electrodes or non-standard internal geometries?

The CR2032 case sets include fixed 15.8 × 0.5 mm spacers and 15.4 × 1.1 mm springs designed for standard coin cell geometries. For other sizes or custom specifications, customization can be requested via inquiry@atomfair.com.

Can these coin cell cases be used directly in an argon-filled glovebox without additional cleaning or degreasing?

Yes. Each set undergoes 100% dimensional inspection, sealing performance testing, and appearance inspection before shipment, ensuring oil-free, burr-free, and impurity-free conditions. They can be used directly for battery assembly inside gloveboxes without any pre-treatment.

Assessment

The ATOMFAIR CR2032 Al-Clad Coin Cell Case Sets incorporate an aluminum-clad positive case on a 316L/304 stainless steel substrate specifically engineered to suppress anodic aluminum dissolution and parasitic side reactions at oxidative potentials exceeding 4.5 V. With rigorous electrochemical validation across -0.5 V to 5.0 V and precision dimensional control within ±0.02 mm, these sets provide standardized, reproducible hardware for high-voltage battery research.

Positive

Suppression of High-Voltage Parasitic Reactions: The aluminum-clad positive case is designed to suppress anodic aluminum dissolution and parasitic side reactions under oxidative potentials exceeding 4.5 V, enabling reliable data collection in high-voltage battery research.
Rigorous Electrochemical Compatibility Testing: All materials have undergone constant potential polarization and cyclic voltammetry tests, verifying no side reactions within a -0.5 V to 5.0 V range, ensuring no interference with battery performance results.

Trade-offs

Default 304 Stainless Steel Components: The accompanying spacers and springs are made of 304 stainless steel by default, which may not be chemically compatible with all electrolyte systems; alternative materials require a custom order via inquiry.
Custom Sizes Require Inquiry: The product is offered only in standard CR2032 dimensions; any size or specification customization must be requested by email to inquiry@atomfair.com, potentially leading to lead time adjustments.

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).

CR2032 Al-Clad Coin Cell Case Sets Research Grade ATOMFAIR®