Slurry Degasser
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Lithium Battery Slurry Defoaming Machine
Eliminate bubbles in lithium battery anode & cathode slurry · Dense coating & consistent battery cells
Vacuum defoaming as essential process + Uniform coating with fewer dark spots + Smooth scale-up from pilot test to mass production
SIENOX lithium battery slurry defoaming solution addresses air entrapment during stirring of cathode and anode slurry containing active materials, conductive agents and binders. Vacuum defoaming reduces coating pinholes and dark spots, and improves electrode density and cell consistency.
✓ CE certification ✓ ISO9001 Quality System ✓ RoHS Compliance ✓ Custom voltage available (110V/220V)
Why Do We Need Lithium Battery Slurry Defoaming Machine
Cathode SlurryCathode slurry contains active materials such as lithium cobalt oxide and NCM, conductive agents and binders. Air entrapment after stirring leads to pinholes and dark spots during coating, uneven electrode density and impaired cell capacity and consistency. | Anode SlurryGraphite anode slurry features high viscosity and tends to trap air. Bubbles trigger coating defects and dark spots. The consistency of anode directly affects battery cycle performance and safety. | Ceramic Coating & GelDiaphragm ceramic coating and gel electrolyte slurries also require low bubbles and high dispersion. Otherwise, coating pinholes and poor consistency will occur. |
✨ Traditional Dilemma: Bubbles in high-solid and high-viscosity slurries are hard to float up, resulting in massive rework caused by coating pinholes and dark spots. Vacuum defoaming is an essential process for lithium battery mass production.
Why Choose SIENOX Lithium Battery Slurry Defoaming Solution
Denser CoatingUniform coating after bubble removal reduces pinholes and dark spots and improves electrode density and consistency. | Uniform DispersionVacuum stirring facilitates dispersion of conductive agents and binders, delivering stable slurry rheology and coating performance. | Smooth Scale-upC/ZK for lab use, MIX60/80 for pilot test, MIX1000plus for mass production. Process parameters can be smoothly scaled up from formula development. |
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Equipment Supporting Description
Supporting Process Workflow Weigh resin and powder → Vacuum stirring, mixing and degassing → Discharge for compaction / casting → Curing / sintering. | ![]() |
Specifications & Parameters
Selection Guide
| Lithium Battery Slurry Stage | Typical State | Recommended Defoaming Method | Recommended Equipment |
| Lab Formulation / Sampling | Small amount of slurry | Centrifugal / Vacuum Defoaming | C Series / ZK Series |
| Pilot Cathode & Anode Slurry | High viscosity | Vacuum Stirring and Defoaming | MIX60 / MIX80 |
| Mass Production Coating Slurry | High solid content in batch | Vacuum Stirring and Defoaming | MIX1000plus |
| Ceramic Coating Slurry | Medium viscosity with fillers | Vacuum stirring, defoaming & dispersion | MIX1000plus |
Our Partners
Trusted by leading industrial manufacturing clusters and advanced university laboratories worldwide
FAQ - Frequently Asked Questions
Answers to common questions about product performance and everyday process selection
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What is the working principle of a centrifugal defoaming machine?
Principle of centrifugal defoaming machine: The bubbles are released by the downward principle of gravity.
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How is the after-sales service?
The company has professional after-sales service personnel, 24-hour dedicated service, and one-on-one technical support to solve your worries.
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Why choose SIENOX?
There are many reasons for choosing SIENOX, and the following are some of the main reasons:
1. Professionalism: Our team consists of a group of professional individuals with rich experience and knowledge in their respective fields. We not only understand industry trends and best practices, but also provide practical and feasible solutions.
2. Service quality: We focus on customer needs and satisfaction, and are always committed to providing high-quality services. We not only respond quickly to customer needs, but also provide customized services according to their requirements.
3. Reliability: We adhere to the principles of integrity and professionalism, always adhering to commitments and agreements. Our work methods and deliverables comply with industry standards and best practices, enabling our clients to trust us.
4. Innovation: We continuously explore new methods and tools to provide better services and meet customer needs. We encourage innovation and experimentation, and are willing to accept challenges and change.
5. Cost effectiveness: We provide cost-effective services that not only help customers save costs, but also improve efficiency and productivity. We always prioritize the interests of our customers and provide them with the best solutions.
6. Teamwork: We believe in the power and value of teamwork, and our team members support, collaborate, and respect each other. We establish close cooperative relationships with customers, partners, and other stakeholders to achieve common goals.
The above are just some of the reasons for choosing us. We believe there are many other advantages and values that can be provided to customers. If you are looking for a professional, reliable, and high-quality service provider, we look forward to working with you.
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How does the stirring and defoaming machine work?
The SIENOX stirring and defoaming machine performs defoaming through centrifugal force at revolution and stirring through shear force formed by revolution and rotation,
Assisted by a vacuum pump to extract gas and achieve a vacuum state, removing nanoscale tiny bubbles. No contact with materials, no secondary pollution, and no secondary waste.
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What is the function of a defoaming machine?
A defoaming machine is a device used to remove bubbles from liquids. Its function is to assist in the liquid mixing, reaction, coating, printing, infusion and other process steps in the production process, avoiding the generation of bubbles and their impact on the final product. In many industrial and laboratory environments, removing bubbles is essential as they may have a negative impact on product quality, such as affecting surface tension and stability. Defoaming machines typically use various techniques such as vibration, ultrasound, centrifugation, etc. to achieve effective bubble removal. It has a wide range of applications, including but not limited to semiconductors, solar energy, optics, biotechnology, materials science, etc.
Technical Specification List
Full‑line standardized specifications for accurate process evaluation and equipment selection
| Lithium Battery Slurry Stage | Typical State | Recommended Defoaming Method | Recommended Equipment |
| Lab Formulation / Sampling | Small amount of slurry | Centrifugal / Vacuum Defoaming | C Series / ZK Series |
| Pilot Cathode & Anode Slurry | High viscosity | Vacuum Stirring and Defoaming | MIX60 / MIX80 |
| Mass Production Coating Slurry | High solid content in batch | Vacuum Stirring and Defoaming | MIX1000plus |
| Ceramic Coating Slurry | Medium viscosity with fillers | Vacuum stirring, defoaming & dispersion | MIX1000plus |
Multi‑Industry Solutions
Covering stirring and debubbling applications of typical materials across six major industries
Cathode SlurryNCM & LFP Cathode |
Anode SlurryGraphite & Silicon-carbon Anode |
Ceramic CoatingSeparator coating & ceramic layer |
Power BatteryCell & electrode coating |
Energy Storage BatterySlurry for energy storage cells |
Gel / PolymerGel electrolyte & polymer materials |
Comprehensive Equipment Operation Demo Videos
Measured Defoaming‑Process Performance
Measured Processing Results for Six Typical Materials
Paste Materials |
Adhesive with Powder |
Polymer Materials |
Pharmaceutical Gel |
Silver Paste Materials |
Battery Slurry |
Precautions for Use
| Notes | Operation Instructions |
| Vacuum Level | Adjust vacuum level and duration according to the process for high-solid slurries to balance defoaming efficiency and slurry rheology. |
| Anti-sedimentation | Active materials tend to settle. Coat promptly after defoaming to prevent stratification upon standing. |
| Inert Atmosphere | For moisture-sensitive systems, control ambient humidity and ensure material dryness. |
| Slow Pressure Relief | Release pressure slowly after defoaming to avoid re-foaming and splashing of slurry. |
* Internal laboratory test data. Actual results vary with slurry formulation and coating process. Contact sales for real customer cases.
Customer Delivery & Application Cases
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