Description
Atomfair Tin-coated CR2032 Button Cell Cases (With O-ring)
Product Overview
This high-performance battery solution is precision-engineered as Button Cell Cases dedicated to CR2032 button batteries, featuring standard dimensions of 20mm (diameter) × 3.2mm (thickness) and a lightweight design of just 0.12 ounces per unit. It boasts a compact structure that fully meets the dimensional requirements of standard battery packaging, ensuring seamless integration with terminal devices. As a professional component, it is crafted to deliver reliable performance for small battery applications across diverse scenarios.
Material & Process Advantages
Dual-layer Corrosion Protection
The shell of these Button Cell Cases is made of premium 316 stainless steel with an inner gold-plated finish, forming a robust barrier against chemical corrosion and electrochemical oxidation, and adapting to harsh and complex working environments. This dual-layer protection system is a core advantage that sets it apart from ordinary battery housings in terms of durability.
Superior Sealing Performance
Paired with polypropylene (PP) gaskets, it delivers exceptional leak-proof and dust-proof effects, maintaining the stability of the internal battery environment and extending service life. The sealing design is optimized specifically for its structural characteristics, ensuring no electrolyte leakage even under extreme temperature fluctuations.
Compatibility & Supporting System
Broad Model Compatibility
Beyond CR2032, these Button Cell Cases are fully compatible with mainstream button battery models including CR2016, CR2025, and CR2450, providing a unified packaging solution for multi-model application scenarios. This cross-model compatibility makes it a versatile choice for manufacturers and researchers dealing with different button battery types.
Customization Options
It supports material customization with alternatives including 304 stainless steel, aluminum coating, and Kapton finishes, tailored to meet specific conductivity, high-temperature resistance, or testing requirements. Customized versions can be fine-tuned to match the unique technical demands of specialized projects.
Complete Accessory Portfolio
Offers one-stop procurement of matching components, including multi-specification stainless steel/pure aluminum gaskets, precision wave springs, and conical springs, all designed to ensure stable assembly and electrical contact of the product. The accessory kit is optimized to complement its installation and operation.
Core Performance Highlights
- Structural Durability: 316 stainless steel construction ensures the Button Cell Cases have high mechanical strength and deformation resistance, suitable for vibration-prone industrial scenarios.
- Conductive Stability: The gold-plated inner layer optimizes electrical conductivity, reducing contact resistance and ensuring consistent power output of the battery.
- Scenario Adaptability: Combining corrosion resistance and sealing performance, it adapts to high-humidity, multi-chemical, and dust-rich working conditions.
Application Scenarios
Specially designed as a high-demand component for battery packaging scenarios, this product is ideal for the following fields:
- Smart electronic devices: Wearable equipment, smart meters, and wireless sensors
- Industrial control systems: PLC modules, remote monitoring terminals, and automated control equipment
- New energy storage products: Small energy storage modules, backup power supplies, and energy management devices
- Mass production lines, scientific research testing projects, and equipment maintenance & replacement
Quality Compliance
All stainless steel components of these Button Cell Cases comply with ASTM A240 international standards, ensuring consistent dimensional accuracy and material performance. The gold-plating process meets ASTM B456 specifications, guaranteeing uniform coating thickness and excellent corrosion resistance. PP gasket materials conform to ISO 1872-2 standards, ensuring chemical compatibility with battery electrolytes and long-term reliability of the product.
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.


