Factory Direct
ISO 9001:2015 Certified

Precision Solutions for
Lithium Battery Busbar

Nickel Tabs
Nickel Tabs
Optimized for:
18650
21700
4680
Prismatic

Factory-direct manufacturer of high-purity interconnects for 18650/21700 packs. We offer rapid in-house tooling, custom engineering support, and production capacities exceeding 10 million units/month for global battery OEMs.

Product Line

Engineered for
High-Current
Applications

From individual nickel tabs to complex copper busbar assemblies, we manufacture interconnect solutions that maximize pack efficiency and safety.

Core Capabilities

In-House Tooling

Rapid die modifications

High Conductivity

Optimized alloys

ISO Certified

Strict QA standards

Custom Design

Engineer-to-engineer

Ni
Nickel Strip
IMG_01_RAW
Nickel Strip

Nickel Strip

High-purity nickel strips for battery interconnects and spot welding.

Custom Width
0.15–0.3mm
Roll Form
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Ni
Nickel Tabs
IMG_02_RAW
Nickel Tabs

Nickel Tabs

Pre-cut tabs engineered for stable spot-weld performance in cell assembly.

Pre-cut
Custom Shape
Spot Weld Grade
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Ni
Nickel Busbar
IMG_03_RAW
Nickel Busbar

Nickel Busbar

Low-resistance busbars for high-current battery pack connections.

High Current
Low Resistance
Custom CNC
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Ni/Cu
Copper–Nickel Busbar
IMG_04_RAW
Copper–Nickel Busbar

Copper–Nickel Busbar

Bi-metal busbars combining copper conductivity and nickel weldability.

Bi-metal
High Power
Laminated
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Process

Design to
Delivery

01

Design

Engineering consultation and CAD design based on battery pack specifications and current requirements.

02

Prototyping

Rapid sample production with 48-hour delivery for design validation and testing.

03

Testing

Comprehensive conductivity, tensile strength, and weldability verification protocols.

04

Production

Factory-direct manufacturing with consistent quality control and batch traceability.

Design
01 - Design
Concept to Reality

Accelerated Prototyping

Skip the middleman. Direct engineer-to-engineer collaboration reduces design cycles and accelerates your time to market.

Free DFM
Report included

Design Optimization

Our engineers review pack configuration and current density to optimize thermal management.

48 Hours
Turnaround time

Rapid Prototyping

From CAD to physical sample in as little as 48 hours for standard materials.

7 Days
Die production

In-House Tooling

We design and manufacture our own stamping dies, allowing for rapid modifications.

Wellgo Factory Environment
Manufacturing Hub

Advanced Facility

ISO 9001:2015 certified production lines equipped with high-speed automated stamping presses.

LOC: SHENZHEN_PLANT_01
SYSTEM_ONLINE
Engineering Design Team
R&D Center

Expert Engineering

Dedicated engineering team providing custom interconnect design and DFM analysis.

DEPT: ENGINEERING_LAB
Applications

Mission-Critical Power Systems

Our interconnect components are engineered for demanding applications across energy storage, transportation, and industrial power systems.

Energy Storage Systems

Energy Storage Systems

High-capacity battery bank interconnects for grid-scale and commercial ESS applications.

Key Requirements
High current capacity (100A+)
Low contact resistance
Thermal management compatibility
Electric Vehicles & E-Mobility

Electric Vehicles & E-Mobility

Precision busbars and tabs for EV battery packs requiring consistent performance under vibration.

Key Requirements
Vibration-resistant welding
Compact dimensional tolerances
High cycle life durability
UAV & Drone Power Systems

UAV & Drone Power Systems

Ultra-lightweight interconnects designed for high-discharge drone battery packs and aerial mobility.

Key Requirements
Weight-optimized materials
High-current burst capacity
Vibration-proof connections
Capability

Manufacturing
Excellence

Nickel Purity
High-purity nickel for optimal conductivity
Tolerance
Precision dimensional accuracy
Sample Lead Time
Rapid prototype delivery
Daily Capacity
Scalable volume production
Certifications & Standards
ISO 9001 Certified
Quality Management System
Material Certification
Batch-Level Test Reports
Process Documentation
Batch Traceability
Production Control
Precision Inspection Process
Precision Inspection Process
Manufacturing Equipment
Manufacturing Equipment
Latest Updates

Insights &
Industry News

Copper busbar module for cylindrical lithium battery pack — Wellgo Battery’s precision busbar design ensures low resistance and high conductivity in EV applications.
Industry News
November 10, 2025
Xiang Bao

The Future of Busbar Technology in EV and Renewable Energy Systems

The future of busbar technology is reshaping how electric vehicles (EVs) and renewable energy systems deliver power efficiently and safely. With rising demand for high-current, compact, and sustainable energy solutions, copper busbars, nickel-plated connectors, and flexible laminated busbars are becoming the core components of next-generation energy infrastructures. Manufacturers like Wellgo Battery are leading this shift by offering custom busbar solutions that integrate advanced plating, thermal management, and smart monitoring technologies. These innovations not only improve conductivity and corrosion resistance but also align with global standards like RoHS, REACH, and IEC 62932, ensuring performance and compliance for the US and EU markets.

Cylindrical lithium batteries prepared for export with copper busbars — part of Wellgo Battery’s custom nickel-plated busbar manufacturing process for EV and energy storage systems.
Industry News
November 10, 2025
Xiang Bao

Export Guide: Shipping Copper Busbars to the US and EU

This article serves as a practical export guide for copper busbars shipped to the US and EU, covering customs, documentation, tariffs, and compliance requirements. It explains key regulations such as RoHS and REACH certification, as well as the correct HS code for copper busbars and tariff rates in major markets. Readers will learn how Wellgo Battery, a leading battery busbar manufacturer, ensures smooth logistics through certified custom copper-nickel busbars, anti-oxidation packaging, and full export documentation. The guide is essential for anyone looking to streamline copper busbar exports under strict EU import regulations.

Nickel-plated copper busbar sheet with precision slots for high-current battery connections — part of Wellgo Battery’s custom busbar fabrication solutions.
Industry News
November 06, 2025
Xiang Bao

Copper Busbar Customization Options: Plating, Bending, and Insulation

This article explores key copper busbar customization options — including plating, bending, and insulation — to enhance performance and reliability in battery busbar applications. It explains how surface coatings like nickel-plated copper busbars improve corrosion resistance, while precision bending ensures mechanical flexibility and consistent conductivity. The guide also covers busbar insulation methods such as PVC, polyimide, and epoxy coatings for high-voltage safety. Backed by standards like IEC 61439 and UL 94-V0, Wellgo Battery provides complete custom busbar fabrication solutions for EV battery systems, energy storage, and industrial power modules.