CR2025 304/316L Stainless Steel Coin Cell Case ATOMFAIR®

ATOMFAIR CR2025 316L/304 STAINLESS STEEL COIN CELL CASE

RESEARCH GRADE MATERIAL

Product Overview

ATOMFAIR® CR2025 316L/304 Stainless Steel Coin Cell Case is a coin cell case set for battery research and laboratory procurement. Key specifications include Product Name: ATOMFAIR® CR2025 Coin Cell Case Sets; Included Components: 316L/304 Stainless Steel Cases, 15.8 × 0.5 mm Spacers, 15.4 × 1.1 mm Springs; Intended Use: Premium cell cases designed specifically for battery research in academic R&D environments; Customization Options: For other sizes or custom specifications, please email to request customization.; Type Classification: Material/Special Structure. It is organized for Lab Accessories & Consumables workflows.

ATOMFAIR® CR2025 Coin Cell Case Sets

ITEM	DESCRIPTION
Product Name	ATOMFAIR® CR2025 Coin Cell Case Sets
Included Components	316L/304 Stainless Steel Cases, 15.8 × 0.5 mm Spacers, 15.4 × 1.1 mm Springs
Intended Use	Premium cell cases designed specifically for battery research in academic R&D environments
Customization Options	For other sizes or custom specifications, 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: Standardized testing and prototype preparation for conventional lithium-ion batteries, sodium-ion batteries, all-solid-state batteries, lithium-air batteries, high-voltage batteries, and other cutting-edge research systems.

PACKAGING: Standard packaging of 1000 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 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—with a unified packaging specification of 1000 sets/pack. 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	Packaging Specification
Standard Assembly Kit	Positive Case + Negative Case + Spacer + Spring	CR2032/CR2025/CR2016	All materials freely combinable Spacer thickness customizable Spring height customizable	1000 Sets/Pack
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	1000 Sets/Pack
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	1000 Sets/Pack

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 coin cell case set is designed for battery research under strict dimensional and electrochemical compatibility constraints. All components must be used within specified temperature and sealing pressure ranges and assembled in an inert atmosphere to prevent contamination.

Electrochemical Compatibility: The case materials are verified to exhibit no side reactions within a -0.5 V to 5.0 V potential window.
Dimensional Tolerance: All component dimensions are controlled to within ±0.02 mm to ensure uniform assembly pressure and prevent leakage.
Operating Temperature Range: The 304 stainless steel case is rated for -40°C to 120°C, while the 316L variant is rated for -40°C to 150°C.
Sealing Pressure Requirement: A sealing pressure of at least 5 MPa for 304 steel or 6 MPa for 316L steel must be applied during crimping.
Atmosphere Requirement: Components are ready for direct use in an argon-filled glovebox without further cleaning.

HowTo

Assemble the coin cell inside a glovebox to maintain an inert atmosphere. Follow these steps to ensure proper sealing and electrochemical performance.

Required Equipment: Argon-filled glovebox, Crimping press

Inspect components
Verify that the coin cell case, spacer, and spring are free of oil, burrs, and impurities before assembly.
Transfer to glovebox
Transfer the components into an argon-filled glovebox to maintain an inert atmosphere.
Assemble electrode stack
Assemble the electrode stack, spacer, and spring inside the coin cell case.
Crimp the cell
Crimp the assembled coin cell using a crimping press at a sealing pressure of at least 5 MPa for 304 steel or 6 MPa for 316L steel.

FAQ

What are the performance trade-offs between using 304 stainless steel versus 316L stainless steel for the CR2025 coin cell case in high-voltage or corrosive battery systems?

The 316L stainless steel variant offers a higher sealing pressure of ≥6 MPa (vs. ≥5 MPa for 304), a wider operating temperature range of -40°C to 150°C (vs. -40°C to 120°C), and superior resistance to sulfide and chloride ion corrosion, making it optimal for sulfide solid-state batteries, high-voltage systems exceeding 4.5 V, and long-term cycling tests. The 304 stainless steel variant is suited for conventional lithium-ion, sodium-ion, and aqueous battery testing where corrosive conditions are not extreme.

Can the ATOMFAIR CR2025 coin cell case be used for sulfide solid-state batteries or high-voltage systems?

Yes, but only the 316L stainless steel variant is explicitly recommended for sulfide solid-state batteries and high-voltage batteries (>4.5 V) due to its sulfide/chloride ion corrosion resistance and higher sealing pressure of ≥6 MPa. The 304 stainless steel variant is not rated for these aggressive conditions. Both variants are compatible with conventional lithium-ion, sodium-ion, all-solid-state, and lithium-air research systems within the specified voltage range of -0.5 V to 5.0 V.

Are the ATOMFAIR CR2025 coin cell cases ready for direct use in an argon glovebox without additional cleaning?

Yes, every case set undergoes 100% dimensional inspection, sealing performance testing, and appearance inspection before shipment, ensuring an oil-free, burr-free, and impurity-free condition. They can be used directly for battery assembly inside gloveboxes without any additional cleaning or preparation. Standard packaging is 1000 sets per pack.

Assessment

The ATOMFAIR CR2025 coin cell case set offers a choice of 304 or 316L stainless steel cases with ±0.02 mm dimensional tolerance, but default accessories (spacers, springs) are 304 SS, requiring custom ordering for full 316L compatibility. Material selection directly affects sealing pressure and temperature limits: 304 supports ≤120°C/≥5 MPa, while 316L supports ≤150°C/≥6 MPa, making the latter necessary for high-voltage (>4.5 V) or corrosive electrolyte systems.

Positive

Precision dimensional control: All component dimensions are held within ±0.02 mm tolerance, ensuring consistent assembly and seal integrity across batches.
316L variant enhanced durability: The 316L stainless steel case offers a sealing pressure of ≥6 MPa and an operating temperature range of -40°C to 150°C, making it suitable for high-voltage (>4.5 V) and corrosive electrolyte systems.

Trade-offs

Default accessory material limitation: The standard kit includes 304 stainless steel spacers and springs; 316L or other material accessories require custom ordering via email.
304 variant temperature and pressure limits: The 304 stainless steel case is rated for sealing pressure ≥5 MPa and operating temperature up to 120°C, which may constrain use in high-temperature or high-pressure research systems.

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