Slotted 18650 Cylindrical Battery Case (Pre-Nickel-Plated Steel Shell) + Insulation Gaskets + Explosion-Proof Cap
Our pre-assembled slotted 18650 case set integrates high-strength steel casing, reliable explosion-proof cap, and premium insulation sheets—designed to streamline your battery production while maximizing safety and performance.This battery case is pre-slotted by a grooving machine, eliminating the trouble of customers having to slot traditional steel cases themselves and enabling customers to assemble batteries more quickly and conveniently.
Key Features & Advantages
- Professional Standards: Multi-process stamped construction using high-quality materials with no production shortcuts
- Reliable Performance: Specialized structural design provides dependable power-off and explosion-proof functionality with stable internal pressure
- Quality Assurance: Rigorous dimensional inspections using advanced testing equipment to ensure compliance with standards
- Custom Solutions: Manufacturer-direct support for custom specifications based on provided drawings
Technical Specifications
| Component |
Parameter |
Specification |
| Steel Case |
Material |
Pre-nickel plated steel shell |
| Dimensions |
Φ18mm * 65mm (customizable) |
| Wall Thickness |
0.2-0.3mm |
| Surface Treatment |
Electroplating/Passivation |
| Explosion-Proof Cap |
Shell and Cover Material |
Nitric acid nickel-plated A3 steel |
| Sealing O-ring and Washer Material |
Nylon |
| Gasket |
PET |
| Insulation Sheets |
Material |
PP (Polypropylene) |
| Thickness |
0.15-0.2mm |
| Heat Resistance |
≤120℃ |
Applications
- Core Component: Essential structural element for cylindrical battery assemblies
- Primary Industry: New energy battery manufacturing supply chain
- Specific Uses: Automotive power lithium battery R&D/production and 3C
- Experimental materials
Why Choose Our 18650 Case Set?
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All-in-One Convenience: Pre-matched components eliminate the need for separate sourcing and compatibility testing—reduce assembly time by 30%.
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Automotive-Grade Safety: Explosion-proof cap and insulation sheets meet IEC 62133 and UN38.3 standards—critical for EV and ESS applications.
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Strict Quality Control: 100% inspection for each component (dimension, pressure resistance, insulation) ensures 0 defective rate in batches.
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Customization Support: Tailor case thickness, surface treatment, and insulation material to your specific battery design.
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Scalable Supply: Annual production capacity of 300 million sets—support bulk orders for large-scale battery manufacturers.