The Lithium Battery PACK line is a crucial part of the lithium battery production process, encompassing cell assembly, battery pack structure design, production processes, and testing and quality control. Here is an overview of the Lithium Battery PACK line:

Cell Types

Cells are the basic units that make up the battery pack, mainly divided into:

• Prismatic Cells: With high energy density and structural stability.
• Cylindrical Cells: Such as the common 18650 model, with good cycle performance.
• Pouch Cells (Polymer Batteries): Flexible in shape, adaptable to different application scenarios.

PACK Structure and Processes

The PACK is composed of multiple cells connected in series and parallel, including:

• Battery Modules: Made up of individual cells or cell modules.
• Busbars and Soft Connections: For electrical connections between cells.
• Protection Board: Includes the Battery Management System (BMS), responsible for battery protection and monitoring.
• Outer Packaging: Provides physical protection.
• Output Interfaces: For connecting the battery pack with external devices.

Production processes cover cell selection and grouping, welding, assembly, aging testing, inspection, and packaging.

Assembly Production Line

The process flow of the PACK production line includes:

1. Cell Selection and Testing: Select and test cells according to design requirements.
2. Cell Matching: Ensure the consistency of cell parameters.
3. Module Assembly: Assemble cells into modules.
4. PACK Assembly: Assemble modules with other components into a PACK.
5. Aging Testing: Inspect battery performance.
6. PACK Testing: Comprehensive performance testing.
7. Packaging: Final packaging for shipment.

Testing Equipment

Testing equipment used in the PACK line includes:

• Electrical Performance Testers: For testing charging and discharging performance, capacity, internal resistance, etc.
• Safety Performance Testers: To evaluate safety performance.
• Environmental Test Equipment: For testing the environmental adaptability of batteries.
• Aging Test Equipment: To assess battery life and stability.
• BMS Test Equipment: For testing the functions and performance of the battery management system.

These devices ensure that the lithium battery PACK meets performance and safety standards.

Lithium Battery PACK Production Line Processes and Equipment