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Battery Raw Material-18650/21700 battery case set

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December 10, 2025
Category Connection: Battery Raw Material
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Tags:
#nickel strips for battery tabs #18650 nickel strips for battery tabs #Cylindrical cells 18650 battery nickel strip
Brief: See the solution in real use and note how it behaves under normal conditions. This video demonstrates the assembly process of the Slotted 18650 Cylindrical Battery Case Set, showcasing how its precision slotted steel shell, explosion-proof cap, and insulation gaskets streamline production while ensuring maximum safety and performance for 18650 lithium-ion batteries.
Related Product Features:
  • Precision slotted steel shell with 2-4 pre-cut slots for effortless electrode tab alignment, reducing assembly time by 40%.
  • Pre-nickel-plated shell enhances solderability, corrosion resistance, and electrical conductivity for automated welding.
  • Explosion-proof safety cap triggers at 1.1-1.4MPa to release gas, preventing battery explosion from overcharging or short circuits.
  • Insulation gaskets made of flame-retardant PP material, stable from -40℃ to 130℃ and meet UL94 V-0 flammability standard.
  • High-strength 304 stainless steel shell with 0.22-0.3mm wall thickness withstands impact and pressure without deformation.
  • Leak-proof sealing with a heat-resistant silicone O-ring creates an airtight seal to prevent electrolyte leakage.
  • All-in-one set includes pre-matched components to avoid fitment issues and simplify sourcing for battery manufacturing.
  • Strict quality assurance with dimension inspection, pressure testing, and insulation resistance testing for 100% qualification.
Faqs:
  • How does the slotted design improve battery assembly efficiency?
    The precision slotted steel shell features 2-4 pre-cut slots that align perfectly with electrode tabs, eliminating manual positioning errors and tab bending. This design cuts assembly time by 40% and reduces production errors by 50%, making it ideal for automated welding processes.
  • What safety features does the explosion-proof cap provide?
    The explosion-proof cap includes a pressure-activated relief mechanism that triggers at 1.1-1.4MPa to release excess gas, preventing battery explosion due to overcharging or short circuits. It also features a low-resistance copper core and a leak-proof silicone O-ring for enhanced safety and stability.
  • Are the insulation gaskets durable and resistant to high temperatures?
    Yes, the insulation gaskets are made of flame-retardant PP material, stable at temperatures from -40℃ to 130℃, and meet the UL94 V-0 flammability standard. They resist electrolyte erosion and oxidation, maintaining insulation effectiveness for over 5 years.
  • Is this battery case set compatible with standard 18650 battery dimensions?
    Absolutely. The set is pre-matched to standard 18650 dimensions (18mm diameter × 65mm height), ensuring seamless compatibility with consumer electronics, portable power tools, and small energy storage devices without fitment issues.
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