Battery Cells Lids Fully Automated Assembly Line

The manufacturing of lithium-ion battery packs is a highly precise and controlled process that plays a pivotal role in delivering reliable and high-performance power solutions.

HGTECH Cylindrical Battery Cells Lids Fully Automated Assembly Line includes automatic assembly, testing, and packaging, with real-time MES communication. Compared to traditional processes, it reduces labor by 10 times and improves quality by 30%.

This final stage in the lithium-ion battery manufacturing process integrates individual cells into fully functional battery modules, complete with safety and management systems.

These battery packs are critical components in electric vehicles (EVs), energy storage systems, and various portable electronic devices.

Key Stages in Lithium-ion Battery Pack Manufacturing

1. Battery Cell Sorting and Grouping

Selection: Choose cells with matching characteristics such as internal resistance, voltage, and capacity.

Grouping: Create uniform groups to ensure balanced battery performance and longevity.

Testing: Perform capacity, voltage drop, and charging/discharging cycle tests to validate cell integrity.

2. Cell Assembly and Spot Welding

Fixture Placement: Arrange cells precisely in designated fixtures.

Spot Welding: Use automatic battery welding machines to connect cells and components for optimal conductivity.

Quality Inspection: Verify weld strength and detect any possible welding faults or irregularities.

3. Battery Module Assembly

Connect Modules: Combine cells in series or parallel configurations to meet voltage and capacity specifications.

BMS Integration: Install a suitable Battery Management System (BMS) to monitor parameters like temperature, voltage, and current flow.

4. Battery Pack Testing and Quality Control

Functional Testing: Validate module efficiency, safety, and performance against industrial benchmarks.

Leakage Testing: Ensure proper sealing with no fluid or gas leaks.

Visual Inspection: Identify physical deformities, alignment issues, or structural defects.

Typical Application + Product Features

• High output: 20,000 pcs per shift, with a 99.5% yield rate.
• Flexible production for products with diameters up to 46mm, offering strong compatibility.
• Conjugate cam riveting technology, completing online riveting in 1 second.
• Automatic feeding technology to resolve the industry's key issue of "material jamming".

Q1: What is this fully automatic battery cell lid assembly line used for?

A: It is a dedicated automated production line for mass assembly of lithium battery cell top lids, completing automatic feeding, positioning, fitting, welding, inspection and unloading for prismatic battery cell lids.

Q2: What types of batteries is this line compatible with?

A: It supports mainstream prismatic lithium batteries, including LFP, NCM cells, power batteries and energy storage battery cells, adaptable to multiple cell sizes via quick mold change.

Q3: What is the full automatic process flow of the line?

A: Full-process unmanned operation including automatic lid feeding, visual positioning, precise alignment, laser welding, vacuum leakage testing, defect detection and finished product discharging.

Q4: What is the assembly precision of the equipment?

A: Equipped with high-precision visual positioning and servo motion system, the assembly tolerance is controlled within ±0.05mm, ensuring consistent lid fitting and welding accuracy.

Q5: What is the production capacity of the automatic lid assembly line?

A: Stable hourly output reaches 800–1200 cells, with adjustable line speed to meet small-batch trial production and large-scale mass production demands.

Q6: Does the line support laser welding and sealing?

A: Yes. It integrates automatic laser sealing welding, realizing seamless welding of cell lids with stable sealing effect and zero electrolyte leakage risk.

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