18650 Cylindrical Cell Battery Assembly Line

18650 Cylindrical Cell Assembly Line for Lab R&D

1. Product Overview

The 18650 Cylindrical Cell Battery Assembly Line is a manual laboratory line for assembling 18650 cylindrical cells in research environments. It covers the complete cell assembly process from electrode winding to sealing, allowing researchers to validate electrode designs, new chemistries and assembly parameters without investing in mass production equipment.

This line is designed for university laboratories, research institutes and battery material companies that need a flexible, compact and easy-to-operate platform for cylindrical cell prototyping.

2. Key Features

• Manual operation stations for flexible process development.
• Covers winding, tab spot welding, bottom spot welding, grooving, ultrasonic cap welding, oven drying, electrolyte filling and sealing.
• Glove box integrated for moisture-sensitive electrolyte filling and sealing operations.
• Compact footprint suitable for standard laboratory rooms.
• Supports 18650 cells, with optional 21700 size adapters.
• Suitable for lithium-ion, sodium-ion and other chemistry research with minor tooling changes.

3. Technical Specifications

4. Process Flow

1. Manual winding: Cylindrical Cell Winding Machine
2. Tab spot welding: Battery Tab Welder
3. Bottom spot welding: Cylindrical Cell Bottom Spot Welder
4. Grooving: Cylindrical Cell Grooving Machine
5. Ultrasonic cap welding: Cylindrical Cell Cap Welder
6. Vacuum oven drying: Battery Vacuum Drying Oven
7. Glove box: Single-station battery-grade glove box
   
8. Electrolyte Filling Machine: Battery Electrolyte Filling and Vacuum Soaking Machine
9. Sealing: Cylindrical Cell Sealing Machine

5. Scope of Supply

• Manual winding machine.
• Tab spot welder and bottom spot welder.
• Grooving machine.
• Ultrasonic cap welding machine.
• Vacuum oven.
• Electrolyte filling tools and glove box.
• Manual sealing machine.
• Optional battery tester for OCV and IR measurement.

Not included: formation and grading equipment, mass production conveyors, cell casings, electrode preparation machines and raw materials.

6. Options

• 21700 cell size adapter kit.
• Argon glove box configuration.
• Vacuum drying oven upgrade for moisture-sensitive materials.
• Additional battery tester or charge-discharge test system.
• Custom fixtures for non-standard electrode designs.

7. Applications

• University and research institute battery laboratories.
• Electrode material and electrolyte R&D teams.
• Small-batch prototype cells for coin-to-cylindrical scale-up validation.
• Sodium-ion, solid-state and other new chemistry research.
• Process parameter development before pilot line investment.

8. Delivery & After-sales

• Standard lead time: 15-30 days after technical confirmation.
• Installation and operator training: 3-7 days at customer site.
• 12-month warranty; spare parts support available.
• Remote technical support for process questions.

9. FAQ

Q1. Is this line suitable for mass production?

No. This is a manual laboratory line for R&D and small-batch prototyping. For pilot or mass production, please contact us for semi-auto or automatic cylindrical line solutions.

Q2. Which machines are included?

The standard line includes winding, tab spot welding, bottom spot welding, grooving, ultrasonic cap welding, vacuum oven, electrolyte filling tools, glove box and sealing machine.

Q3. Does it include formation and grading?

No. Formation and grading are not included. A battery tester can be added for OCV and IR measurement, and formation/grading equipment can be supplied separately.

Q4. What environment is required for electrolyte filling?

Electrolyte filling and sealing are performed inside a glove box with dew point down to -40 C to protect moisture-sensitive electrolytes.

Q5. Can the line produce 21700 cells?

The standard configuration supports 18650 cells. A 21700 adapter kit is available for research on other cylindrical sizes.

10. Related Products

• Coin Cell Lab Line
• Pouch Cell Assembly Line
• 4680 4690 Tabless Battery Cylindrical Cell Production Line