304 Stainless Steel Wave Spring (Belleville Washers) for CR2032, Diameter: 15.4 mm, Thickness: 0.2 mm, Height: (1.2±0.03) mm

Technical Specification:

1. Material Composition:
   • Material: 304 Stainless Steel (304SS).
     • Excellent corrosion resistance, mechanical strength, and compatibility with lithium-ion battery environments.
2. Physical Dimensions:
   • Outer Diameter: 15.4 mm.
   • Thickness: 0.2 mm.
   • Height: 1.2 ± 0.03 mm (free height).
   • Inner Diameter: Designed to fit within standard CR2032 coin cell cases.
3. Mechanical Properties:
   • Elasticity: Designed to maintain consistent pressure on cell components.
   • Load Bearing: Optimized for securing cell assembly under compression.
   • Deflection Range: Precise deflection properties to ensure proper contact between electrodes.
4. Corrosion Resistance:
   • Excellent resistance to oxidation and electrolyte-induced corrosion.
   • Withstands exposure to lithium-ion battery chemistries, including liquid and solid-state electrolytes.
5. Thermal Properties:
   • Operating Temperature: Stable under typical lithium-ion battery operating temperatures (-20°C to 60°C).
   • Heat Resistance: Capable of withstanding elevated temperatures during formation cycles or testing.
6. Design:
   • Wave Pattern: Multi-wave or single-wave design to distribute load evenly and maintain cell integrity.
   • Reusable: Durable construction allows for repeated use in testing setups.

Applications:

1. Primary Applications:
   • Spring Washer for CR2032 Coin Cell Assembly:
     • Provides consistent pressure to maintain contact between electrodes and improve cell performance.
2. Industries:
   • Battery Research:
     • Integral for assembling coin cells during material testing and prototype development.
   • Consumer Electronics:
     • Applied in CR2032 coin cells for watches, sensors, and remote controls.
   • Energy Storage Development:
     • Supports research in lithium-ion, lithium-metal, and solid-state battery technologies.
3. Advantages for Applications:
   • Consistent Contact Pressure:
     • Prevents electrode displacement and ensures stable performance during charge/discharge cycles.
   • Corrosion Resistance:
     • Stainless steel resists degradation from battery electrolytes, extending its lifespan.
   • Compact Design:
     • Fits seamlessly within CR2032 coin cell cases without compromising assembly integrity.
   • Reusable:
     • Durable enough for multiple cycles of use in laboratory environments.
4. Specialized Uses:
   • Solid-State Battery Research:
     • Ideal for maintaining compression in solid-state coin cell prototypes.
   • Material Optimization:
     • Supports the evaluation of new electrode and electrolyte materials.
   • High-Precision Assembly:
     • Useful in applications requiring consistent and repeatable mechanical properties.
5. Challenges and Mitigation:
   • Spring Fatigue:
     • Repeated compression cycles may lead to a loss of elasticity over time.
       • Solution: Periodically inspect and replace springs in high-frequency testing setups.
   • Dimensional Precision:
     • Variations in height or diameter can affect performance.
       • Solution: Use precision-manufactured springs with tight tolerances.

Summary:

The 304 Stainless Steel Wave Spring (Belleville Washer) with dimensions 15.4 mm diameter, 0.2 mm thickness, and 1.2 ± 0.03 mm height is a critical component for CR2032 coin cell assembly. It ensures consistent pressure and reliable contact between cell components, improving performance and durability. With excellent corrosion resistance and thermal stability, it is suitable for lithium-ion and solid-state battery research and development. Its robust design supports repeated use, making it a valuable tool for both laboratory and commercial applications.