Small saddle-shaped charging electrode sheet

This is an unconventional charging electrode sheet, whose shape is somewhat like a miniature saddle.

Material
 

It is made of phosphor bronze as the base material (for the gold version), which has excellent elasticity, high conductivity, resistance to fatigue, and is unlikely to break even when repeatedly bent.
Phosphor bronze + surface nickel plating (silver version): An additional layer of nickel is electroplated on the phosphor bronze base. After nickel plating, the appearance turns silvery white, further enhancing the anti-corrosion and rust prevention capabilities, while maintaining excellent conductivity and elasticity.

Manufacturing process

1. Precision stamping: Utilizing high-speed precise die-cutting and stamping, it is integrated and formed as one piece. It can simultaneously stamp out annular positioning holes, snap fasteners, and bending structures. The dimensional accuracy is high and the consistency is good.

2. Bending forming: After stamping, multiple bends are performed to create the cylindrical shape, snap fasteners, and annular contact point composite structure as shown in the picture. This ensures the assembly clamping force.

3. Electroplating treatment (silver model): Pre-treatment involves oil removal and cleaning → electroplating nickel → post-treatment. The coating is uniform, has strong adhesion, and is not prone to peeling or falling off.

4. Inspection and sorting: The finished products are inspected for size, elasticity, conductive performance, and coating appearance. Defective parts are eliminated.

Application scope

It is mainly used inside lithium batteries, energy storage battery packs, and consumer battery groups, serving as conductive connection tabs:

• Power battery modules, small energy storage battery packs

• Battery packs for digital products, lighting devices, power tools

• Various power modules, functioning as conductive connections, elastic compression, and electrical current transmission. The ring-shaped structure is convenient for positioning and assembly.

Product advantages

Excellent conductivity: The phosphor-tin bronze substrate has low resistance and stable current transmission; the

nickel-plated version is resistant to oxidation, and the contact resistance changes little over a long period of use.
 

Elasticity and durability: The copper alloy material has good elasticity, and it still maintains compression contact under long-term vibration conditions, and is not prone to loosening or power failure.
 

Corrosion resistance and rust prevention: The nickel plating layer isolates air and moisture, suitable for humid environments, and delays metal oxidation.
 

Integrated precision structure: The punching, positioning ring, and snap fastener are integrated in one press, eliminating the need for secondary assembly, making assembly convenient and suitable for automated production lines.
 

Size stability: Precision mold production ensures small tolerance in the same batch of products, and strong compatibility for large-scale assembly.