Ningbo Fenghua Bolong Machinery Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of ev negative battery terminals in China. Please feel free to buy durable ev negative battery terminals made in China here from our factory. All customized products are with high quality and competitive price.
Core Advantages
6-Die Cold Forming Technology - Produced on state-of-the-art equipment (all machines commissioned within the last 5 years) via one-piece integral molding that preserves the complete metal fiber structure. These cold formed battery terminals for EV deliver higher toughness and excellent anti-vibration and anti-fatigue performance for long-term EV operating conditions.
Pure Copper Conductivity - High-purity copper ensures ultra-low resistance and stable current transmission, precisely matching the conductivity requirements of EV negative pole connection systems.
Ultra-High Dimensional Accuracy - These high precision negative terminals for EV are held to strict ±0.02mm tolerance, burr-free and highly consistent, ensuring smooth performance on automated assembly lines.
Tier 2 Automotive Grade - All copper negative terminals are delivered as semi-finished parts, with geometries and surface conditions optimized for Tier 1 manufacturers to conduct subsequent ceramic encapsulation and electroplating - no secondary machining required before entering post-processing lines.
Mass Production & Stable Output - 24-hour automatic production. Single machine output: 25,000–60,000 pcs/8h; daily maximum capacity: 1.5 million pcs, fully supporting large-scale EV projects.
100% AI Full Inspection - Equipped with automatic visual sorting machines. Full dimension and appearance inspection guarantees zero-defect batch delivery.
Full Industrial Certifications - Manufactured in an IATF 16949-certified facility, compliant with ISO 14001, ISO 45001, and IECQ QC080000 - fully aligned with global new energy automotive standards.
Technical Specifications
|
Item |
Details |
|
Product Name |
Cold Headed Battery Terminals - Copper Negative Battery Terminals |
|
Materials Available |
Red Copper, H59/H62 Brass, Cold Heading Steel, Carbon Steel, Alloy Steel, 304/316 Stainless Steel, 6061 Aluminum Alloy |
|
Size Range |
Diameter Φ2–Φ20mm, Length 3–150mm (customizable) |
|
Tolerance |
±0.02mm high precision |
|
Process |
6-die cold heading integral forming |
|
Post-Processing |
Reserved for Tier 1 subsequent processing: ceramic encapsulation, various electroplating treatments |
|
Application Grade |
EV Tier 1 supplier matching |
|
Custom Service |
OEM / ODM per drawings & samples |
|
Quality System |
IATF 16949, ISO 14001, ISO 45001, IECQ QC080000 |
Quality Control
|
Stage |
Control Measure |
|
Raw Material Inspection |
100% material certificate verification before production - chemical composition and mechanical properties double-confirmed |
|
In-Process Monitoring |
Real-time parameter calibration and data archiving - SPC statistical process control on critical dimensions |
|
Finished Full Inspection |
100% AI visual inspection (dimension + appearance) + mechanical performance batch sampling |
Application Scenarios
These terminals are purpose-designed for EV battery negative connection systems. Typical applications include:
Cylindrical/Prismatic/Pouch Cell Cover Sealing Structures - Terminal body mates with ceramic-to-glass hermetic sealing components, achieving gas-tight insulation sealing between the pole and housing
Battery Module Conductive Connections - As Tier 1 semi-finished parts, subsequent electroplating enables laser welding to aluminum/copper busbars
Direct Feeding into PACK Assembly Lines - No secondary machining required; terminals can be directly fed into sealing assembly lines upon delivery
Compatibility with Downstream Processes:
|
Post-Process |
Compatibility Note |
|
Ceramic-to-Glass Hermetic Sealing |
Terminal surface condition and dimensional accuracy directly match sealing tooling - no modification needed |
|
Pre-Formed Solder Ring Reflow |
Terminal head geometry provides a dedicated solder ring positioning surface for consistent welding results |
|
Laser Penetration Welding |
Burr-free surface ensures uniform laser energy absorption - no spatter |
Custom Services
Custom Sizing
Per drawing or sample - diameter Φ2–Φ20mm, length 3–150mm range
01
Material Options
Red copper, brass, stainless steel, aluminum alloy, and more
02
Post-Processing Reservation
Terminal surface condition and geometry customized per Tier 1 process requirements - ceramic encapsulation or various electroplating
03
Sample Support
1.5-day rapid changeover - small-batch trial production available
04
Volume Delivery
From trial runs to million-level mass production - stable, on-time delivery serving the global new energy vehicle supply chain
05
Contact Us for Your New Project
Hot Tags: ev negative battery terminals, China ev negative battery terminals manufacturers, suppliers, factory, Ceramic Sealed Terminal, Cold Formed Battery Terminals for EV, Copper Negative Battery Terminals, ev battery terminals, Insulated Battery Terminals, Pure Copper Battery Terminal
