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New Energy 18650/AA/AAA Battery Steel Shell – 3.7V Pre-Nickel Plated Cylindrical Lithium Battery Accessories

Categories Cylindrical Cell Parts
Brand Name: XWELL
Model Number: 18650
Certification: CE
Place of Origin: China
MOQ: 50pcs
Price: 0.1-100000USD/Negotiable
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability: 100000pcs/month
Delivery Time: 5-7working days
Packaging Details: Carton
Model: 18650
diameter: 18mm
length: 65mm
customizable: assist
Nickel Plating Thickness: 0.5-2μm
Hardness: HV ≥ 180
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New Energy 18650/AA/AAA Battery Steel Shell – 3.7V Pre-Nickel Plated Cylindrical Lithium Battery Accessories

New Energy 18650/AA/AAA Battery Steel Shell – 3.7V Pre-Nickel Plated Cylindrical Lithium Battery Accessories
Product Overview

Our pre-nickel plated cylindrical battery steel shells are key accessories for 3.7V new energy lithium batteries, available in 18650, AA, and AAA models. Crafted from high-grade cold-rolled steel with advanced nickel-plating technology, they combine structural robustness, corrosion resistance, and reliable electrical performance. Designed to protect battery cores and ensure stable operation, these shells are widely trusted in consumer electronics, household appliances, and new energy device manufacturing.

Key Product Features
  • Pre-Nickel Plated Surface: Uniform nickel coating (thickness: 0.5-2μm) enhances solderability and anti-corrosion, ensuring long-term electrical contact stability.
  • High-Strength Material: Cold-rolled steel (SPCC grade) offers excellent hardness (HV ≥ 180) and impact resistance, preventing core deformation from external forces.
  • Precision Dimensional Control: CNC processing ensures tight tolerance (±0.02mm), enabling perfect matching with battery cores and aluminum-plastic films.
  • Leak-Proof Design: Smooth edge and consistent wall thickness optimize sealing performance during battery assembly, avoiding electrolyte leakage.
  • 3.7V Voltage Compatibility: Tailored for 3.7V cylindrical lithium batteries, adapting to the working parameters of mainstream new energy devices.
Technical Specifications
Item18650 ModelAA ModelAAA ModelGeneral Standard
Outer Diameter18.0±0.02mm14.5±0.02mm10.5±0.02mm-
Inner Diameter17.2±0.02mm13.7±0.02mm9.7±0.02mm-
Height65.0±0.05mm50.5±0.05mm44.5±0.05mm-
Wall Thickness0.4±0.01mm0.4±0.01mm0.35±0.01mm-
MaterialSPCC Cold-Rolled SteelSPCC Cold-Rolled SteelSPCC Cold-Rolled SteelSPCC
Nickel Plating Thickness0.5-2μm0.5-2μm0.5-2μmRoHS Compliant
HardnessHV ≥ 180HV ≥ 180HV ≥ 170ASTM E384 Standard
Application Range

These battery steel shells are ideal for 3.7V cylindrical lithium batteries used in:

  • Consumer Electronics: Power banks, Bluetooth headsets, digital cameras, portable speakers, smart wearables
  • Household Appliances: Flashlights, remote controls, electric toothbrushes, small kitchen appliances
  • New Energy Devices: Electric toys, portable medical equipment (blood glucose meters, nebulizers)
  • Industrial Uses: Emergency lighting, small-scale energy storage battery packs, security devices
Why Choose Us?
  • Years of industry experience, trustworthy.
  • One-stop procurement of experimental materials.
  • Reliable quality, with sufficient inventory supplied directly by the factory.
We offer customization for non-standard sizes, plating thickness, and surface treatments. Contact us for samples and technical support!
China New Energy 18650/AA/AAA Battery Steel Shell – 3.7V Pre-Nickel Plated Cylindrical Lithium Battery Accessories factory
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