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Views: 0 Author: Site Editor Publish Time: 2025-12-03 Origin: Site
Amidst the rapid development of the new energy storage industry, a seemingly small component—the PA66 material electrical connector with CQC certification—is becoming a critical element ensuring the safe and stable operation of the trillion-level energy storage sector, thanks to its exceptional reliability.
In a modern factory in Taizhou, Jiangsu, an automated production line is precision-molding batches of PA66 Nylon connectors specifically for new energy storage applications. These connectors are destined for a major grid-side energy storage project in China, serving as core components for internal electrical connections within battery clusters and bearing the crucial responsibility of ensuring the system's safe operation throughout its lifespan.
As the global energy transition accelerates, electrochemical energy storage power stations are evolving towards larger capacities and higher voltages. The long-term reliability, flame-retardant safety, and environmental resistance of electrical connection points have become major industry concerns.
The internal electrical connection environment within new energy storage systems, particularly containerized storage units, is extremely complex. Continuous heat generation during battery charging and discharging can cause prolonged internal temperatures to exceed ambient levels.
Simultaneously, trace corrosive gases potentially released by battery cells pose a challenge to traditional materials. More critically, electrical connectors must meet stringent flame-retardant requirements to block potential pathways for thermal runaway propagation.
Traditional plastic connectors are prone to aging and embrittlement under long-term high temperatures, while metal connectors present disadvantages in insulation and weight. The market urgently needs a new connection solution that combines high strength, high insulation, flame retardancy, corrosion resistance, and lightweight properties.
The reinforced PA66 Nylon material selected by our company is the ideal answer to these challenges. This material is far from ordinary plastic; it is a specially modified engineering plastic.
It possesses exceptionally high flexural and tensile strength, ensuring connectors remain secure and undeformed under long-term vibration. Its insulation resistance reaches up to 10¹⁵ Ω·cm, perfectly meeting the insulation requirements for high-voltage electrical connections in storage systems.
PA66 offers a long-term service temperature range of -40°C to 120°C, fully covering the operational conditions of energy storage equipment. Crucially, through formula optimization, we have enabled it to achieve the UL94 V-0 flame retardancy standard, extinguishing immediately upon removal of flame, adding a solid line of defense for system safety.
As a manufacturer, we deeply understand the importance of standards for the energy storage industry. Therefore, our PA66 energy storage connectors have fully obtained the CQC Mark Certification from the China Quality Certification Centre.
This certification is not a simple product test but a comprehensive quality assurance system covering raw materials, production processes, and finished products. It signifies that our products comply with the relevant GB/T safety standards for electrical products.
The certification focuses on key performance indicators of the connectors, such as electric strength, insulation properties, flame retardant rating, heat and aging resistance, and mechanical strength. Every batch of shipped products is accompanied by authoritative test reports, giving system integrators and end-users peace of mind.
Within our new 28,000-square-meter facility in Taizhou, the production of PA66 connectors relies on highly automated injection molding lines and AGV logistics systems.
Precision molds imported from Germany ensure the molding accuracy of the connectors' complex internal structures (such as threads, clasps, and sealing grooves). Fully automated robotic arms enable unmanned part removal and post-processing,彻底杜绝 (completely eliminating) quality fluctuations caused by human factors.
An online visual inspection system screens every finished product for dimensions and appearance. Furthermore, we have established an independent electrical laboratory to regularly conduct full-item testing on samples, including high-voltage breakdown, insulation resistance, and ball pressure heat resistance tests, ensuring fail-safe performance.
Our series of PA66 CQC connector products has been widely applied across various energy storage scenarios.
In grid-side large-scale energy storage power stations, they are used for electrical series and parallel connections between battery modules, with their excellent weather resistance tackling challenges like day-night temperature variations and humidity within outdoor containers.
In commercial and industrial energy storage systems, their lightweight properties and convenient plug-and-play design simplify installation and maintenance. In residential energy storage equipment, their aesthetically pleasing design and absolute safety have won over numerous high-end customers.
Additionally, these connectors are widely used for rapid connections within energy storage systems, such as for Battery Management System (BMS) sampling harnesses, fire protection system signal lines, and air conditioning and thermal management pipelines, becoming an indispensable "connection neural network" inside storage equipment.
As the new energy storage industry transitions from "rapid expansion" to "high-quality development," standards, safety, and reliability are becoming consensus across the supply chain. As a leading domestic professional manufacturer, we have proactively completed the full-chain layout from material R&D and certification acquisition to scaled manufacturing.
Looking ahead, we will continue to deepen collaboration with battery cell manufacturers, PCS makers, and system integrators to jointly develop next-generation integrated and intelligent connection modules. We aim to safeguard the grand journey of the global energy transition with the precision and reliability of Chinese manufacturing.
