Editorial Technical Reference

Battery Cell Tab Connector

This page explains how Battery Cell Tab Connector is classified within Manufacture of Batteries and Accumulators. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Electrical interface component connecting battery cell tabs to external circuits.

View Full Specifications Explore Manufacturing Sources
Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Battery Cell Tab Connector

Definition
The Battery Cell Tab Connector is a precision-engineered electrical component used in the assembly of battery packs. It establishes a reliable, low-resistance electrical connection between individual battery cell tabs and the battery management system (BMS) or external circuitry. This connector is critical for maintaining electrical continuity and thermal management within battery pack assemblies, serving as a key interface point in the B2B supply chain between cell manufacturers and battery pack integrators. Proper design ensures minimal voltage drop and efficient current distribution across multiple cells configured in series or parallel.

This component is manufactured from materials such as copper alloy, nickel-plated steel, and high-temperature polymer, which are selected for their electrical conductivity, corrosion resistance, and thermal stability. The connector is designed to accommodate battery tab thicknesses ranging from 0.1 to 0.5 mm, with a footprint size of 20×10×5 mm and a weight of 5–20 g. It supports a rated voltage of up to 1000 V DC and a withstanding voltage of at least 3000 V AC, ensuring insulation integrity under high-voltage conditions. The contact resistance is maintained at or below 0.5 mΩ, and the insulation resistance is at least 100 MΩ, as per relevant IEC standards. The connector can handle continuous currents of 10–50 A and operates within a temperature range of -40°C to 85°C. It has a mechanical cycle life of at least 10,000 cycles, ensuring durability in repeated connection and disconnection scenarios.

For procurement and verification, the connector is referenced against standards such as IEC 60512-2, IEC 60512-3, IEC 60068-2-14, IEC 60512-3-1, IEC 60512-9-1, IEC 60664-1, and IEC 60512-4-1. The material grade for the copper alloy is specified as C1100 per GB/T 5231. These standards serve as reference points for evaluating performance and quality; they do not imply certification or compliance of any specific product. Buyers must verify model-specific values and standards with the legal manufacturer or supplier before use.
Working Principle
The connector operates by mechanical clamping or welding, which creates a secure electrical contact between the connector terminals and the battery cell tabs. This establishes a low-resistance path for current flow while maintaining structural integrity under thermal cycling. The mechanical force ensures consistent contact pressure, minimizing contact resistance and preventing arcing. The design accommodates thermal expansion and contraction, preserving the connection's reliability over the operating temperature range.
Common Materials
Copper Alloy, Nickel-Plated Steel, High-Temperature Polymer
Technical Parameters
ParameterTypical rangeNotes & selection driver
Contact ResistanceRequired≤0.5 mΩElectrical resistance at the tab-connector interfaceIEC 60512-2
Current RatingRequired10–50 AMaximum continuous current carrying capacityIEC 60512-3
Operating Temperature RangeRequired-40–85 °CTemperature range for reliable operationIEC 60068-2-14
Tab Thickness CompatibilityRequired0.1–0.5 mmRange of battery tab thicknesses supported
Insulation ResistanceRequired≥100 MΩElectrical insulation between adjacent connectorsIEC 60512-3-1
Mechanical Cycle Life≥10000 cyclesNumber of connection/disconnection cycles before failureIEC 60512-9-1
Rated Voltage≤1000 V DCExceeding voltage may cause arcing and breakdown.IEC 60664-1
Withstanding Voltage≥3000 V ACVerifies insulation integrity under high voltage.IEC 60512-4-1
Material GradeC1100Copper alloy for high conductivity and corrosion resistance.GB/T 5231
Weight5–20 gAffects handling and assembly efficiency.
Footprint Size20×10×5 mmMust fit battery pack design constraints.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Conductive Terminal Part
    Provides electrical contact surface for battery tab
    Material: Copper alloy with nickel plating
  • Insulation Sleeve Part
    Prevents electrical short circuits between adjacent connectors
    Material: High-temperature polymer
  • Clamping Mechanism Part
    Secures connector to battery tab with consistent pressure
    Material: Spring steel
  • External Connection Lug Optional Part
    Interface point for wire or busbar connection
    Material: Copper alloy

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Battery Cell Tab Connector.

Cell Terminal Connector Battery Tab Interface Electrode Connection Clip

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 5 MPa
temperature: -40°C to 150°C
electrical current: Up to 300 A continuous
vibration resistance: Up to 20 G RMS
Media Compatibility
✓ Lithium-ion electrolyte solutions ✓ Nickel-based battery chemistries ✓ Copper and aluminum busbars
Unsuitable: High-concentration acidic or alkaline environments
Sizing Data Required
  • Cell tab thickness and material
  • Required current carrying capacity
  • Battery pack mechanical constraints

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal fatigue cracking
Cause: Cyclic thermal expansion/contraction from charge/discharge cycles, leading to stress concentration at weld joints or bends
Galvanic corrosion
Cause: Electrochemical reaction between dissimilar metals (e.g., aluminum tab to copper connector) in presence of electrolyte contamination or humidity
Maintenance Indicators
  • Visible discoloration (blue/green corrosion products or black oxidation) on tab surfaces
  • Audible crackling/popping sounds during charge/discharge indicating arcing or loose connections
Engineering Tips
  • Implement torque-controlled fastening with conductive anti-seize compound to maintain proper contact pressure while preventing galvanic corrosion
  • Apply conformal coating or install environmental seals to prevent electrolyte migration and humidity ingress at connection points

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 26262: Functional Safety IEC 62619: Secondary Cells and Batteries UL 1642: Lithium Batteries

Quoted from the published standard.

Manufacturing Precision
  • Tab Thickness: +/-0.05mm
  • Weld Spot Alignment: +/-0.1mm
Quality Inspection
  • Electrical Resistance Test
  • Pull Force Test

Manufacturers of Battery Cell Tab Connector

Manufacturer profiles associated with Battery Cell Tab Connector.

Sourcing Battery Cell Tab Connector from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is the contact resistance of this connector?

The contact resistance is specified as ≤0.5 mΩ, measured according to IEC 60512-2. This value is a reference; actual performance may vary by model and application, so verify with the manufacturer.

What battery tab thicknesses does it support?

The connector supports tab thicknesses from 0.1 to 0.5 mm. Ensure your battery tabs fall within this range for proper fit and reliable connection.

What is the operating temperature range?

The operating temperature range is -40°C to 85°C, as per IEC 60068-2-14. This indicates the environmental limits for reliable operation; confirm suitability for your specific application.

What standards apply to this connector?

Relevant standards include IEC 60512-2, IEC 60512-3, IEC 60068-2-14, IEC 60512-3-1, IEC 60512-9-1, IEC 60664-1, and IEC 60512-4-1. These are reference standards for testing and verification; they do not guarantee compliance of any specific product.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
Buyer enquiry

Request manufacturing insight for Battery Cell Tab Connector

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim
A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.

Need to Manufacture Battery Cell Tab Connector?

Compare manufacturer profiles with relevant product and process capability.

Create Manufacturer Profile Contact Us
Previous Product
Lithium-Ion Battery Module Assembly and Testing System
Last Product
Get QuotesChat