801640-480mAh 3A High-Rate Soft Pack Cell

A High-Rate Soft Pack Cell 480mAh (3A class) uses a single lithium polymer pouch design. Engineers set the nominal voltage to 3.7V. They also limit full charge to 4.2V. In addition, they tune internal resistance for stable high current output. Cell capacity stays consistent through strict matching and electrolyte control. This reduces variation during fast discharge events.

Materials and Internal Structure

Producers use lithium cobalt or blended cathode materials. They pair them with graphite anodes. Copper foil and aluminum foil conduct current inside the cell. Meanwhile, a polymer separator blocks electrode contact. It still allows ion flow. The outer pouch uses aluminum-plastic laminate. It seals the chemistry and keeps the structure flexible.

Assembly and Electrical Setup

Technicians sort cells by voltage and impedance first. This step improves balance in final assembly. Next, they use spot welding to attach nickel tabs. The welds create low-resistance paths and reduce heat stress. After that, they install a protection circuit module. It manages overcharge, over-discharge, and over-current conditions. In addition, they secure lead wires with strain relief. This prevents loose connections during movement.

Sealing and Finishing Process

Manufacturers seal the pouch using heat and pressure. This locks in the electrolyte and blocks moisture. Then, they add insulation layers to strengthen the surface. These layers also improve structural stability. After sealing, they test for leaks and insulation resistance. This confirms enclosure quality before packaging.

Standards and Charging Control

Production follows UN38.3, CE, and RoHS standards. These rules cover transport and material safety. Charging uses a CC/CV method. The system limits voltage to 4.2V per cell. Finally, cycle testing runs under controlled temperature. This checks stability during repeated high-rate use.

Product Features

• Customization Supported: Can be customized according to customer needs
• High Power: Up to 20C discharge
• Fast Charging: Up to 3C charging
• Long Lifespan: Meets the requirements for long-term product use
• Multi-Material System: Covers LCO, NCM, NCA, LFP, and other material systems
• High Safety: Passes safety performance tests
• Sufficient Capacity: Meets product design capacity requirements
• High Temperature Resistance: Operating temperature range -20℃ ~ 80℃

Application Scenarios

• Electronic Atomizers
• Voice Recorders
• Headphones
• Beauty Devices