Cylindrical Cell Machine Line
18650 Battery Pilot Line
Pouch Cell Lab. Line
Prismatic Cell Machine Line
China Lithium Battery Slitter Machine Supplier - Precision Electrode Cutting Factory Equipment
Equipment Characteristics
The slitting machine is a pivotal component in battery production, tasked with precisely processing rolled positive and negative electrode materials. The process begins with feeding these rolled electrodes into the winding mechanism, where they are guided through alignment systems to maintain proper alignment and centering. This ensures accuracy during the subsequent cutting process.
Precision Cutting
Once aligned, the electrode material enters the slitting mechanism, equipped with cutting tools that slice it into narrower strips of specified widths. This precision cutting is essential for producing electrodes that meet exacting dimensional requirements crucial to battery performance and assembly.
Collection and Waste Management
As the slitting process progresses, the upper and lower winding mechanisms collect the slit electrode strips into separate rolls. Concurrently, a scrap collection mechanism gathers side scraps to maintain cleanliness and efficiency on the production line.
Auxiliary Systems
- 1 Deviation Correction System: Ensures the electrode material remains on course throughout the slitting process, minimizing errors in alignment that could affect strip accuracy.
- 2 Tension Transmission System: Controls and maintains consistent tension levels in the 3.3 electrode material, essential for uniform cutting and winding.
- 3 Dust Suction System: Removes debris and dust generated during cutting, keeping the workspace clean and preventing contaminants from affecting electrode quality.
Process Specifications
The slitting machine adheres to strict process specifications regarding burrs (sharp edges), straightness, and other critical indicators. These specifications ensure that each electrode strip meets the required standards for smooth integration into battery cells.
In Conclusion
By incorporating these advanced features and systems, the slitting machine optimizes the production of electrode materials with high precision and efficiency. It plays a crucial role in streamlining battery manufacturing processes, contributing to the consistent quality and performance of batteries used in diverse applications, from portable electronics to electric vehicles and renewable energy storage solutions. This systematic approach to electrode processing underscores the machine's importance in advancing battery technology and meeting the growing demand for reliable energy storage solutions globally.
Specification of Equipment
| Product |
|
|
| Model | WS-SDFTJ | WS-ZDFTJ |
| Equipment dimension | L1000*700*800(MM) | L2000*1700*1900(MM) |
| Equipment weight | 400KG | 1200KG |
| Cutter type | Top and bottom set of spherical blades | 20m/min |
| Slitting width | 10~345mm | 1~15m/min |
| Max. slitting size | 400mm | ≤±0.3mm (without edge material slitting) |
| Winding accuracy | — | ≤0.4mm |
| Vertical slitting burr | — | <6μm |
| Horizontal metal burr | — | <8μm |
Frequently Asked Questions
What is the primary role of a slitting machine in battery manufacturing?
The slitting machine is designed to process rolled positive and negative electrode materials by cutting them into narrower, specified widths with high precision, ensuring they meet the dimensional standards required for battery cell assembly.
How does the machine maintain accuracy during the cutting process?
It utilizes a Deviation Correction System and alignment mechanisms that guide the electrode materials, keeping them centered and on course to minimize alignment errors.
What are the functions of the tension transmission and dust suction systems?
The Tension Transmission System controls and maintains consistent tension levels for uniform cutting and winding, while the Dust Suction System removes debris and dust generated during cutting to protect electrode quality.
What is the difference between the WS-SDFTJ and WS-ZDFTJ models?
The WS-SDFTJ is a manual/semi-automatic slitting option weighing 400KG with a compact layout, whereas the WS-ZDFTJ is a larger automatic unit weighing 1200KG that features higher winding accuracy (≤0.4mm) and higher slitting speeds.
Why are burr specifications critical for battery electrodes?
Strict vertical and horizontal burr limits (e.g., <6μm and <8μm) prevent sharp metal edges from piercing the battery separator, which is essential to avoid internal short circuits and ensure battery safety.