751835 High Drain LiPo Battery 420mAh

A single pouch-cell structure is used in a high-drain 420 mAh LiPo battery 420mAh. Its nominal voltage is set by engineers to 3.7 V, and full charge is limited to 4.2V. Moreover, the design is able to provide high current output with low internal resistance. Capacity is also controlled by manufacturers using rigid electrode matching and electrolyte dosing. This method maintains electrical behavior at rapid load variations.

Material Composition and Cell Structure

The cell is constructed by producers using lithium cobalt or mixed cathode materials. They combine them with graphite anodes to facilitate rapid ion movement. The cell contains copper and aluminum foils that direct the flow of electrons. In the meantime, a microporous separator eliminates contact between electrodes and internal short circuits. The outer pouch is made of aluminum-plastic laminate. It keeps the internal chemistry sealed and protected from physical stress.

Assembly and Electrical Configuration

Technicians separate cells by impedance and voltage and then assemble them. This measure minimizes the imbalance in the final battery pack. They then weld nickel tabs in place. The process creates a low-resistance electrical circuit. It also restricts the heat effects on the electrodes. Then, a protection circuit module is attached. It regulates overcharge, over-discharge, and over-current. Moreover, the lead wires are strain-relieved to avoid the failure of the connection when they are moved.

Sealing and Structural Finishing

The pouch cell is closed by workers with heat-lamination. This action fixes the electrolyte and prevents the entry of moisture. Then, they apply insulation layers to strengthen the outer structure. These layers serve to provide shape stability as well. Technicians perform pressure and insulation tests after sealing. They verify leakages and electrical safety before final packaging.

Standards and Electrical Control

Production is in line with UN38.3, CE, and RoHS. These are standards that govern transport and material safety. Charging is on a constant-voltage/constant-current basis. The system restricts the voltage to 4.2V/cell. Lastly, cycle tests are conducted at controlled temperatures. These tests ensure that the discharge behavior is stable in repeated use.

Product Features

• Customization Supported: It can be customized as per the customer's requirements.
• High Power: Up to 20C discharge
• Fast Charging: Up to 3C charging
• Long Lifespan: Meets the criteria for long-term product use.
• Multi-Material System: Includes LCO, NCM, NCA, LFP, and others.
• High Safety: Passes safety performance tests.
• Adequate Capacity: Adequate product design capacity.
• High Temperature Resistance: Operating temperature range: -20℃ ~ 80℃

Application Scenarios

• Electronic Atomizers
• Voice Recorders
• Headphones
• Beauty Devices