Bettery Cover Plate
Bettery Cover Plate is a core structural component of lithium-ion battery packaging systems. It serves as a connection hub between the internal electrodes and external circuits, a sealed barrier isolating the internal environment from the outside world, and a key carrier for battery safety protection. It is widely applicable to various lithium-ion battery shapes, including square and cylindrical, and covers core new energy/power electronics fields such as electric vehicles, energy storage systems, portable electronic devices, and aerospace.
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Product Introduction
This product is a Bettery Cover Plate, a core engineering node for power and energy storage batteries to achieve electrical lead-out, sealing, and pressure management. It employs aluminum-copper composite diffusion-welded terminals, with an interface resistance consistently below 0.05mΩ; the explosion-proof valve has a scoring tolerance of ±0.15MPa and a leakage rate of <1.0×10⁻⁷ Pa·m³/s. The entire process (mold making/stretching/welding/electroplating) is independently controllable, relying on the IATF 16949 system to achieve micron-level tolerances and 100% online traceability. From material matching to interface reliability, it provides system engineers with quantifiable and verifiable long-term service assurance.
Production process
Raw Material Pretreatment
High-quality aluminum alloy ingots are selected, cold-headed, and impurities are removed. Spectroscopic testing eliminates substandard raw materials. Solid solution strengthening and aging treatment optimize mechanical properties, ensuring a solid foundation for processing.
Precision Forming
The main body of the cover plate is stamped and CNC machined (accuracy ±0.01mm). Terminals are cold-headed in one piece. Irregularly shaped cover plates are laser-cut and CNC bent, enabling rapid small-batch customization and prototyping for Lithium Battery Top Cap.
Surface Treatment and Welding
Anodizing/electroplating (5-20μm) is used as needed, with automation ensuring coating compliance. Automated assembly (±0.01mm) is compatible with various welding processes, and post-weld X-ray inspection ensures Power Battery Cover Plate quality.
Inspection and Warehousing
Three-level automated inspection ensures a finished Prismatic Lithium Battery Lid qualification rate ≥99.8%. Graded packaging and protection, constant temperature and humidity (15-25℃, 40%-60%) warehousing ensures stability.
Detailed display
Structural Details
Rounded corners (≥0.5mm) on the cover edge enhance assembly safety; countersunk mounting holes prevent interference; standardized terminal design (contact area ≥10mm²), with a reserved grounding interface ensures aluminum battery cover stable connection and electrical safety.
Manufacturing Details
Uniform welds (0.8-1.2mm) and defect-free, improving strength and thermal conductivity; uniform and compliant surface treatment; wear-resistant anodized layer (no peeling after 1000 cycles of friction); tightly fitting sealing components ensure aluminum battery box cover sealing performance.
Testing Details
Finished aluminum battery cover come with traceable testing reports; explosion-proof valve calibration accuracy ±0.01MPa, dimensional CCD detection accuracy 0.001mm; sealing performance is dual-verified through water immersion and air pressure (≥1.5MPa) to ensure compliance.
Packaging Details
Prismatic Lithium Battery Canopy are individually packaged and labeled with key information; reinforced outer packaging with moisture protection ensures good handling during logistics and facilitates inventory management and traceability.
competitive advantage
Technological patents are the core support of the company's core competitiveness. Leveraging its deep cultivation and strong R&D capabilities in the field of Bettery Cover Plate, the company has acquired numerous core technology patents highly recognized in the industry, building an unreplicable technological barrier. These patented technologies are not merely technical reserves, but rather key elements that permeate the core competitiveness of the products, providing a solid core guarantee for the performance leadership and quality stability of the products, effectively mitigating the risk of technological homogenization in the industry. Relying on its professional technical team and advantages across the entire industry chain, the company continuously promotes the transformation, iteration, and innovation of patented technologies, fully transforming patent advantages into core value that customers can perceive. This provides core support for engineering procurement that combines technological leadership, quality reliability, and cost rationality, demonstrating the company's deep technological cultivation and leading position in the industry.
contact us
If you have any needs regarding the procurement, selection, sample request, or customization of Bettery Cover Plate, or if you wish to learn more about the product details, please feel free to contact us. We will arrange a professional team to provide one-on-one service, customize adaptation solutions, and ensure stable supply, accurate selection, and efficient procurement.
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