Superman nickel sheet

I. Basic Materials

This connection piece is made of high-purity nickel (pure nickel) substrate. Pure nickel itself has excellent properties:

1. Excellent electrical conductivity, suitable for large current conduction of batteries, with low voltage drop.

2. Good ductility, capable of being stamped, hollowed out, and bent to form, and not prone to cracking.

3. Excellent corrosion resistance, high temperature resistance, and oxidation resistance. The battery operates stably under long-term working conditions.

4. Excellent soldering and laser welding performance, and reliable welding with battery cell tabs, not prone to false soldering.

II. Structural & Process Characteristics (Key Points from the Diagram)

1. Special-shaped hollow stamping molding
It is not a conventional long strip of nickel. It has a special shape and double hollow slot design, which can be adapted to specific battery module arrangements, avoiding interference from battery cells, brackets, etc., and suitable for customer customized PACK space layout. The contour is precise, and the controlled burrs at the stamping edges reduce the risk of sharp edges scratching the insulation film and battery cells.

2. Local bending molding
One end of the product has a bending position, which can achieve three-dimensional assembly, used to connect different heights of terminals/electrode tabs, without additional adapters, suitable for three-dimensional assembly structure. The R-angle at the bending can be controlled to avoid cracking and stress cracking.

3. Surface condition
The original bright surface of pure nickel metal (optional: cleaning, oil removal, or optional surface treatment), the surface is clean, conducive to welding, and reduces the risk of welding defects caused by impurities.

4. Processing method: Can be processed by die stamping/laser cutting, suitable for small batch prototyping or large-scale mass production, and the size can be customized according to the drawing.

III. Product Advantages

1. Customized special-shaped design: Can be customized for battery compartments, cell arrangement diagrams, non-standardized shapes, hollowing, bending positions, and bending angles, with high flexibility.

2. Electrical stability: Pure nickel has reliable conductivity, with relatively controllable heat generation under large current charging and discharging conditions, reducing the risk of overheating.

3. Good mechanical toughness: Maintains certain toughness after stamping and bending, making it less likely to break during assembly, and having good shock resistance.

4. Strong welding adaptability: Suitable for resistance spot welding and laser welding, and is a very commonly used connection substrate for lithium battery PACKs.

5. Resistant to environment: Anti-oxidation, resistant to certain corrosion, suitable for long-term use in energy storage, power batteries, and other applications.

IV. Application Scope

Lithium battery PACK, 18650/21700 cylindrical battery packs, soft-pack batteries, energy storage batteries, electric vehicle batteries, digital batteries, battery modules for power batteries, etc.
 

Used as conductive connection pieces between battery cells, electrode tabs transferers, to achieve series and parallel connection of battery cells, and conduct current; special-shaped models are mostly used for wiring connections within batteries with relatively special structures.