Pre-Slotted 18650/21700 Battery Case Kit (Pre-Nickel-Plated Steel) with Insulation Gaskets & Explosion-Proof Cap

Pre-Slotted 18650/21700 Battery Case Kit (Pre-Nickel-Plated Steel) with Insulation Gaskets & Explosion-Proof Cap

Streamline your battery assembly process with our high-performance 18650/21700 slotted battery case set—engineered for safety, precision, and convenience, tailored to meet the demands of modern energy storage and device manufacturing.

Key Components & Premium Material

Every set comes fully equipped with essential parts to get your production up and running:

• 18650/21700 Slotted Cylindrical Steel Shell: Crafted from pre-nickel-plated steel, offering excellent corrosion resistance and electrical conductivity. The pre-slotted design (done via professional grooving machinery) eliminates the need for on-site slotting, saving you time and reducing production hassle.
• Explosion-Proof Cap: Integrates reliable safety mechanisms to prevent overpressure risks, safeguarding your battery cells and end products during operation and storage.
• Insulation Gaskets: High-quality insulating materials ensure optimal isolation between components, avoiding short circuits and enhancing overall battery stability.

Core Advantages That Matter

• Ready-to-Assemble Convenience: The pre-slotted shell skips the tedious step of manual or in-house slotting, cutting down your assembly time by up to 30% and boosting production efficiency.
• Superior Build Quality: Adopts CNC precision stamping and drawing processes for uniform wall thickness (0.2-0.3mm), smooth inner/outer surfaces, and consistent dimensional accuracy—perfectly fitting automated assembly lines.
• Reliable Safety Assurance: From the corrosion-resistant pre-nickel-plated steel to the explosion-proof cap and insulation gaskets, every component is designed to prioritize safety, minimizing failure risks.
• Universal Compatibility: Specifically designed for the 18650/21700 cylindrical battery format (21mm diameter × 70mm height), compatible with most standard 18650/21700 cells and widely used in power tools, energy storage systems, electric vehicles, and more.

Why Choose Our Battery Case Set?

Whether you’re a small-scale manufacturer or a large enterprise, our 21700 slotted case set delivers tangible value:

• Eliminates extra processing steps and equipment investment for slotting.
• Ensures consistent product quality with precision-manufactured components.
• Enhances battery reliability with strict quality control on materials and craftsmanship.
• Supports customization for specific slot sizes, thicknesses, or branding needs—just let us know your requirements.

Specifications

• Model: 18650/21700 (slotted version)
• Material: Pre-nickel-plated steel
• Wall Thickness: 0.2-0.3mm
• Components: Slotted steel shell + explosion-proof cap + insulation gaskets
• Compatibility: Automated battery assembly lines, 18650/21700 lithium-ion battery cells

Upgrade your battery production with a reliable, efficient, and safe housing solution. Contact our sales team today to get a quote, discuss customization options, or learn more about how this set can fit your specific application!