Atomfair ASTM Certified CR2032 Battery Box – Aluminum-Coated for High-Voltage Charging

20mm*3.2mm, 304SS shell with aluminum coating (4.5V+ compatible), PP gasket for sealing. Full-matched parts available, ideal for electronics, sensors & energy storage modules.

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Atomfair Aluminum-Coated CR2032 Lithium-Ion Battery Box & Matching Accessory Series

Atomfair Aluminum-Coated CR2032 Lithium-Ion Battery Box & Matching Accessory Series

Product Overview

This precision-engineered battery box is optimized for CR2032 lithium-ion button batteries, featuring standard dimensions of 20mm (diameter) × 3.2mm (thickness). Its three-part structure consists of a positive electrode shell, a negative electrode shell, and a sealing gasket, ensuring a secure and reliable fit for battery packaging and operation.

Material & Process Advantages

Each component is crafted with high-performance materials to meet the demands of high-voltage scenarios and long-term durability:

  • Positive Electrode Shell: 304 stainless steel base with an internal aluminum coating. This design prevents electrolyte-steel reactions during high-voltage charging (=4.5V), ensuring battery safety and stability.
  • Negative Electrode Shell: Made of premium 304 stainless steel, designed for seamless compatibility with springs and gaskets to maintain stable electrical contact.
  • Sealing Gasket: Constructed from PP (polypropylene) material, delivering excellent sealing and leak-proof performance to protect the battery from external moisture and contaminants.

Full-Range Matching Accessories & Compatibility

To support one-stop procurement for diverse assembly needs, we offer a comprehensive product portfolio:

  • Multi-Model Battery Boxes: Compatible with mainstream button battery models including CR2016, CR2025, and CR2450, with material options of 304 stainless steel, 316 stainless steel, and gold-plated finishes for enhanced performance.
  • Supporting Components: A complete range of accessories such as multi-specification stainless steel/pure aluminum gaskets, wave springs, and conical springs, tailored to match different battery box models and application scenarios.

Core Performance Highlights

  • High-Voltage Compatibility: The internal aluminum coating enables safe operation under charging voltages of 4.5V and above, eliminating the risk of material reactions and extending battery service life.
  • Superior Sealing Protection: The PP gasket provides reliable leak-proof and dust-proof protection, suitable for harsh operating environments.
  • Structural Durability: 304 stainless steel base material ensures excellent corrosion resistance and mechanical stability, meeting the rigors of long-term use.

Application Scenarios

Specially designed for lithium-ion button battery packaging, this product series is ideal for the following fields:

  • Portable electronic devices (wearables, remote controls, key fobs)
  • Smart sensors (temperature, humidity, pressure, IoT sensors)
  • Energy storage modules and backup power systems
  • Industrial production lines, scientific research testing, and equipment maintenance & replacement

Quality Compliance

All products adhere to international industry standards:

  • Stainless steel components comply with ASTM A240 for material quality and dimensional accuracy.
  • PP gasket materials meet ISO 1872-2 specifications for non-toxicity and chemical resistance, ensuring compatibility with lithium-ion battery electrolytes.

If you?re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.