450840 Single Cell Rechargeable LiPo Battery

Single Cell Rechargeable LiPo Battery Structural Overview

Engineers design the 450840 single cell rechargeable LiPo battery using a compact pouch-cell structure with layered internal components. First, they arrange the cathode, separator, and anode into a flat stacked configuration to maintain uniform thickness across the cell body. Then, technicians align each layer carefully to reduce internal displacement during sealing and cycling. Meanwhile, insulated films are applied between conductive sections to improve structural stability and electrical isolation. After positioning, the cell enters the lamination and pouch-forming stage.

Electrode Materials and Internal Chemistry

Manufacturers construct the cathode using lithium metal oxide coated on aluminum foil, while the anode is produced from graphite material applied to copper foil. In addition, a microporous polymer separator is placed between the electrodes to allow lithium-ion transfer while preventing direct contact. Furthermore, the electrolyte contains lithium salts dissolved in organic carbonate solvents, and moisture levels are strictly controlled during injection and sealing. Meanwhile, the outer pouch uses aluminum-plastic laminated film instead of a rigid metal shell, helping maintain a thin and flexible structure.

Cell Fabrication and Lamination Process

Technicians begin by mixing active materials, conductive additives, and binders into uniform electrode slurry. Next, automated coating machines apply the slurry evenly onto metal foils. After drying, the electrodes pass through calendaring rollers to achieve stable density and thickness. Subsequently, the coated materials are cut into precise dimensions and stacked into layered structures. Meanwhile, alignment equipment checks positioning accuracy before the cell proceeds to lamination and packaging.

Formation Testing and Compliance Standards

Engineers perform initial charge-discharge cycling to activate the electrochemical system and stabilize internal interfaces. Afterwards, aging tests evaluate voltage retention and internal resistance consistency over time. Finally, insulation resistance testing, sealing inspection, and electrical verification are completed before shipment. Throughout manufacturing, the single cell rechargeable LiPo battery follows IEC 62133 and UN38.3 safety standards, ensuring structural reliability, electrical safety, and transportation compliance.

Product Features

1. 🔋 High Capacity & Stable Output
   Genuine capacity with low self-discharge for steady, long-lasting power.

2. 🛡️ Multi-Protection Safety Design
   Built-in protections guard against overcharge, over-discharge, over-current, and short circuits.

3. 🔧 Flexible Customization
   Supports adding wires, PCBs, and connectors to meet specific requirements.

4. 🔄 Long Cycle Life
   Designed for stable performance through repeated charge and discharge cycles.

5. 📱 Wide Application Range
   Suitable for various portable and compact electronic devices.

6. 🏭 Factory Direct Supply
   Strict quality control with fast sample support and OEM service.

Product Application Areas

Ideal for portable and daily-use electronics requiring safety, long cycle life, and compact size.

• Personal Care: Electric toothbrushes, Sports bracelets, Medical devices
• Audio & Entertainment: Headphones, Speakers, Toys
• Daily Electronics: LED lights, General electronic products