Aluminum-Coated Funnel Spring for Coin Cell Assembly (Standard Type)

Aluminum-Coated Funnel Spring for Coin Cell Assembly (Standard Type) — 304 stainless steel funnel spring with 99.9% purity aluminum coating (1 μm) for CR2032 coin cell assembly. Diameter 15.4 mm × height 1.2 mm. Withstands up to 5 V. Available in 60 sets/bag or 30 sets/bag.

Need a bulk order? Request a competitive quote today!

Aluminum-Coated Funnel Spring for Coin Cell Assembly (Standard Type)

Product Type: Coin Cell Funnel Spring
Material: 304 Stainless Steel with Aluminum Coating
Brand: Xnergy

Product Introduction

This aluminum-coated funnel spring is designed for coin cell battery assembly, offering improved corrosion resistance and stable electrochemical performance compared to standard stainless-steel springs. The 304 stainless steel spring is coated with 99.9% purity aluminum to a thickness of 1 μm, providing better corrosion resistance and the ability to withstand higher voltages (up to 5 V). The aluminum coating also prevents reactions between the electrolyte and the stainless-steel spring surface.

Key Features

Aluminum-coated surface — 99.9% purity Al, 1 μm thickness
Up to 5 V compatibility — Al coating enables use with higher-voltage electrolyte systems
Reduced electrolyte–metal reactions — coating prevents direct contact between electrolyte and stainless steel
304 stainless steel base — provides mechanical strength and spring performance
Available in 60 sets/bag or 30 sets/bag

Specification

Parameter Specification
Material 304 stainless steel
Coating Aluminum (99.9% purity, 1 μm thickness)
Diameter 15.4 mm
Height 1.2 mm
Maximum Voltage 5 V
Packaging 60 sets/bag; 30 sets/bag

Note: Browse all spacers and springs in the Spacers & Springs category.