Gold Plated 304SS Stainless Steel 2032 Coin Cell Cases with Spacers and Wave Springs

Product Overview

This high-performance coin cell hardware assembly provides an ultra-reliable platform for precision electrochemical research and battery material testing. Fabricated from premium 304 stainless steel and treated with a specialized plasma-sputtered gold coating (300–500 Å), the assembly provides an extraordinarily stable electrochemical window while effectively suppressing anodic oxidation and electrolyte corrosion. Each set includes a precisely formed positive can, negative cap with an integrated polypropylene sealing gasket, a gold-plated spacer disc, and a gold-plated wave or conical spring to ensure complete internal stack integrity.

Engineered specifically to meet the exacting standards of battery R&D laboratories, academic institutions, and materials science research facilities, this assembly excels across demanding test regimes. It is ideal for evaluating lithium-ion cathode and anode active materials, solid-state electrolytes, sodium-ion chemistries, and next-generation energy storage formulations. The gold-metallized contact surfaces dramatically lower interfacial contact resistance and prevent parasitic surface reactions that could otherwise compromise experimental data.

Manufactured under stringent dimensional and metallurgical quality standards, the cell hardware delivers outstanding mechanical sealing reliability and repeatable crimping performance. Whether subjected to extended galvanostatic cycling, high-temperature environmental testing, or wide-potential cyclic voltammetry, this system maintains hermetic sealing and uniform internal mechanical pressure. Researchers can rely on its robust architecture to eliminate hardware-induced experimental artifacts and secure reproducible electrochemical results.

Key Features

• Plasma-Sputtered Gold Metallization: Coated with a uniform 300–500 Å gold layer via plasma sputtering, the hardware provides superior corrosion resistance and prevents metal dissolution at elevated operating voltages.
• High-Purity 304 Stainless Steel Substrate: Offers superior mechanical rigidity, pressure containment, and structural stability during high-pressure crimping and long-term volumetric expansion cycles.
• Integrated Polypropylene Sealing Gasket: Features a precision-molded polypropylene (PP) O-ring on the negative cap that forms a leak-tight, hermetic seal to prevent electrolyte evaporation and ambient contamination.
• Matched Gold-Plated Spacers: Includes 15.5 mm diameter spacer discs with uniform gold plating to guarantee low interfacial ohmic resistance and optimal electrical continuity across electrode interfaces.
• Resilient Wave and Conical Spring Options: Provides calibrated, uniform axial compression throughout the cell stack, effectively accommodating active material expansion and contraction during continuous charge-discharge cycling.
• Broad Chemical and Electrolyte Compatibility: Chemically inert surface finish eliminates unwanted catalytic reactions with aggressive liquid electrolytes, organic solvents, ionic liquids, and solid-state separator interfaces.
• Customizable Functional Coatings: Available with custom metallization layers including aluminum (Al), platinum (Pt), and silver (Ag) to match specific electrochemical work functions and testing criteria.
• Precision Dimensional Tolerances: Tight dimensional manufacturing guarantees seamless compatibility with standard laboratory coin cell crimpers, automated cell handling systems, and testing channels.

Applications

Technical Specifications

Why Choose This Product

• Elimination of Experimental Artifacts: Native passive films on untreated stainless steel can corrode or develop high interfacial impedance at high potentials. The plasma-sputtered gold layer on this hardware ensures superior electrical conductivity and electrochemical passivity, guaranteeing that your experimental data reflects true electrode kinetics rather than hardware degradation.
• Precision-Calibrated Stack Pressure: Maintaining constant, uniform mechanical compression is critical for cell performance, especially during volumetric changes in high-capacity anodes and solid-state systems. The precision-engineered wave and conical springs ensure reproducible axial load distribution without crushing delicate separator membranes or active material coatings.
• Hermetic Environmental Isolation: The high-integrity polypropylene seal combined with accurately stamped 304 stainless steel cases prevents solvent evaporation and atmospheric ingress (H2O, O2). This ensures long-term cycling stability even during extended high-temperature testing protocols.
• Adaptable Customization Capabilities: While standard gold plating meets the most rigorous research demands, our manufacturing process readily supports specialized functional coatings such as aluminum, platinum, and silver to accommodate specialized working potentials and research parameters.

Contact our technical sales team today to request a quotation, inquire about volume pricing, or discuss customized plating and dimensional specifications for your laboratory workflow.

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