New Energy Battery Connector: Materials, Coatings & Stamping

Core Material Selection

Mainstream materials for new energy battery connectors balance conductivity and structural strength, adapting to different application scenarios. Xiamen Jiaxin provides multi-material options to meet customized needs of various new energy equipment.

●Pure Copper (T2 Red Copper): High conductivity, ductility and buffering, ideal for high-current power battery modules.

●Brass Alloy: Higher hardness and cost-effectiveness, suitable for small-medium energy storage and low-current connections.

●Aluminum Alloy: Lightweight and low-cost, used for weight-sensitive, low-current equipment (e.g., low-speed EVs).

●Stainless Steel Composite: For special flame-retardant/insulation scenarios, mostly as auxiliary connectors.

Surface Coating Process

Surface coatings for new energy battery connectors effectively prevent oxidation and corrosion, reduce contact resistance, and extend service life. Xiamen Jiaxin adopts professional coating processes to match different working conditions of battery packs.

 

●Tin Plating: Cost-effective, good weldability, suitable for conventional energy storage/digital batteries.

 

●Nickel Plating: Wear-resistant, corrosion-resistant, ideal for high-temperature/humidity automotive battery packs.

 

●Gold/Silver Plating: Top conductivity, for high-end energy storage and high-power equipment (higher cost).

 

●Bare Copper Polishing: Maximum conductivity, only for dry, low-corrosion indoor environments.

 

Precision Stamping Process

High-precision stamping is the key to ensuring the dimensional accuracy and mass production stability of new energy battery connectors. Xiamen Jiaxin uses high-speed punch presses and precision molds to achieve batch production of non-standard connectors with strict tolerance control.

 

●High-Precision Molds: Integrated progressive/compound dies for one-step forming, controlling tolerance.

 

●High-Speed Stamping: Optimized parameters for soft materials (e.g., copper) to avoid burrs/deformation.

 

●Bending Optimization: Pre-bending relieves internal stress, preventing rebound/breakage in harsh environments.

 

●Post-Processing & Inspection: Deburring and 2D/conduction tests ensure high qualification rate.