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Xia Deyas | As nanomaterials emerge as a core competitive advantage, solid–liquid separation is poised to become the next critical hurdle—insights from CIBF exhibitors on cutting-edge technologies
Release time:
2026-04-24
In recent years, CIBF Battery Exhibition Above, a clear trend is gradually taking shape:
The materials are becoming finer and the processes more complex, yet solid–liquid separation is growing increasingly difficult.
Whether it is lithium-ion battery materials, electronic pastes, semiconductor powders, or new-energy catalytic materials, Nanometer-scale particles are becoming mainstream. 。
Meanwhile, an increasing number of companies are discovering—
What truly hinders production-line efficiency is not the reaction or the grinding, but the filtration.
This is not an isolated incident; rather, it is a widespread, industry-wide issue that is rapidly escalating.
I. In the nanomaterial era, filtration difficulty is increasing exponentially.
A simple comparison of material developments over the past decade reveals a clear shift:
Particle size is continuously decreasing.
From:
Micrometer-level
Sub-micron level
To this day, Nanoscale (below 100 nm)
However, the difficulty of filtering does not increase linearly; rather:
Exponential growth.
Many enterprises initially continue to use traditional equipment, such as:
Plate and frame filter press
Centrifuge
Bag filter
Settling method
Ceramic filter disc
These devices are fully functional in the micrometer regime, but in the nanometer regime, problems begin to emerge en masse:
Extremely low filtration efficiency
The filtrate is cloudy.
Severe filter cake agglomeration
Difficult to wash
Unable to achieve industrial continuous production
These issues have become increasingly typical in consulting cases over the past two years.
New Nanomicro Powder Filtration Machine for Filtering Lithium Iron Phosphate (Image)
II. Typical Filtration Challenges Faced by Real-World Customers (Key Industries in the CIBF)
Over the past period, Xadias has engaged with a large number of customers in the new energy, new materials, and electronic paste sectors, many of whose questions are highly representative.
For example:
Case 1: Nano silver powder Filtration Challenges (in the Electronic Paste Field)
A Jiangsu-based company specializing in Silver Nanopowder and Silver-Coated Copper Materials enterprises are encountering severe bottlenecks during capacity expansion.
Its core requirements include:
Filtering silver powder, nickel powder, and copper powder
Particle size enters the nanoscale.
Hard agglomeration is not allowed.
Requires meeting the demands of mass production.
Previously attempted:
Natural sedimentation
Scraper Centrifuge
Ceramic Dispersion Plate
However, problems still remain in the end:
Low filtration efficiency and difficulty in controlling product consistency.
And this type of problem, in HJT silver paste, conductive paste This is becoming increasingly common in the industry.
New Nanometer/Micrometer Powder Filter for Silver Powder (Image)
Case 2: Nano-oxides Filter Clogging (New Energy Materials)
A new materials company in Guangdong is handling D50 approximately 100 nm metal oxide slurry It was discovered that:
The traditional plate-and-frame filter press has emerged:
Rapid blockage
Difficult to wash
Extremely low filtration efficiency
More importantly:
When the solid content reaches 30%, the system can hardly operate stably.
Such questions arise in:
Battery additives
Cathode precursor
Nanocatalytic materials
The field is very typical.
New Nanomicro-Powder Filtration Machine for Filtering Titanium Dioxide (Image)
Case Study 3: Challenges in Controlling the Purity of Ultrafine Silicon Nitride (Semiconductor Material)
A certain semiconductor materials company needs to handle:
0.7 μm silicon nitride slurry
Its core requirements are extremely stringent:
Metallic impurities are not permitted to be introduced.
Requires repeated washing
- pH
Strict control
Product purity reaches 99.99% or higher.
Previously used:
Ceramic filter element
Settling method
Plate-and-frame filter press
The outcome still fails to achieve stable industrialization.
Such problems, in Semiconductor powders The number of fields is increasing rapidly.
New Nanomicro-Powder Filtration Machine for Filtering Lithium-Ion Battery Carbon Precursors (Image)
III. The real challenge is not filtration, but “nanoscale separation.”
Many engineers will find:
Traditional filtration theory ceases to be valid at the nanoscale.
The reason is not complicated:
When particles are reduced to the nanoscale, the following phenomena occur:
Enhanced Brownian motion
Extremely large specific surface area
Enhanced electrostatic interaction
Extremely prone to agglomeration
This means:
Relying solely on screening or pressure filtration is no longer sufficient to resolve the issue.
We must fundamentally rethink the system architecture.
This is also why more and more companies are beginning to look for:
A filtration device truly designed for nanomaterials and micromaterials.
IV. Technical Approach for the New Nano- and Micropowder Filtration Machine
To address the challenge of nanoscale filtration, Xiamen Deyas has developed: New Nanomicro-Powder Filtration Machine
This is not a mere upgrade of conventional filter presses; rather, it involves structural optimization tailored to the behavior of nanoparticles.
Its core approach includes:
1. Constructing a Stable Filter Layer Structure
Traditional equipment is prone to:
Dense hard filter cake
Leads to:
Resistance increases rapidly
Difficult to clean
Powder agglomeration
The new system employs a specialized flow field and filter layer design to enhance the stability of the filtration layer.
The direct result of this is:
Stable filtration rate
The filtrate is clearer.
Controllable filter cake structure
2. Reduce Nanoparticle Agglomeration Risk
As for Nanopowder In other words, reunions often occur when:
Filtration + Drying Stage
Especially in:
Silver powder
Copper powder
Silicon nitride
Nano-oxides
It is very evident in the system.
The optimized filtration structure can significantly reduce:
Probability of hard agglomeration formation.
This is particularly critical for the electronic paste industry.
New nanomicro-powder filtration machine for filtering potassium hydroxide electrolyte (image)
3. Supports high-frequency washing and high-purity requirements
In the production of many high-end materials:
The number of washes often exceeds five, even ten.
For example:
High-purity oxides
Semiconductor materials
Solid electrolyte
Traditional equipment often cannot withstand frequent washing.
Meanwhile, the new system supports:
Multiple cycles of washing
Stable solid-liquid separation
High-purity requirements
V. Why are more and more CIBF exhibitors turning their attention to nanofiltration?
Over the past few years, we have observed a clear trend:
An increasing number of companies in the CIBF sector are proactively seeking consultations on nanofiltration solutions.
Areas of involvement include:
Lithium-ion battery cathode and anode materials
Solid electrolyte
Conductive paste
Nano-silicon materials
Nano-oxides
Semiconductor powders
Typical applications include:
Nano-silicon filtration
Nano-tungsten oxide filtration
Sulfide electrolyte filtration
Nanocarbon Material Separation
These applications have one thing in common:
Traditional equipment is gradually becoming obsolete.
New Nanomicro Powder Filtration Machine for Filtering Ternary Lithium Battery Materials (Image)
VI. It is the “final process step” that truly determines production-line efficiency.
At many project sites, we have observed a common phenomenon:
Front-end rendering, polishing, and integration have all been optimized to the utmost.
However, final production capacity is ultimately constrained by:
Solid-liquid separation.
This is not a device issue; rather:
Technology upgrade requirements driven by changes in the manufacturing process stage.
In other words:
As materials enter the nanoscale era,
The filtration system must be upgraded in sync.
Otherwise:
The efficiency of the entire production line will be slowed down.
VII. Final Thoughts: In the Nanotechnology Era, Filtration Is No Longer a Supporting Process
In the past, filtration was often regarded as: “Auxiliary Process”
But today:
It is becoming a critical process that determines product quality and production-line efficiency.
Especially in:
New Energy
Semiconductor
Fine Chemicals
Nanomaterials
This trend is becoming increasingly evident across these industries.
Welcome to contact us.
If you are engaged in:
Nanopowder Production
Battery Material Manufacturing
Electronic Paste Development
Semiconductor Materials Research and Development
and hope to learn more about:
Nanomicro Powder Solid-Liquid Separation Technology
Feel free to send us your material or process requirements for in-depth discussion.
We would rather discuss:
Real problems, not standard answers.
CIBF’s Recommended Exhibitor for Featured Technology Demonstrations
Xiamen Xadias Filtration Materials Technology Co., Ltd.
Xiamen Citius Filter Media Technology Incorporated Company
As part of the new energy materials technology system for this session, One of the recommended units for the featured technology showcase The company has long been dedicated to the fields of industrial solid–liquid separation and nanofiltration of fine powders, striving to provide stable and reliable filtration solutions for the new energy materials, nanopowder, and fine chemicals industries.
Leveraging years of engineering practice, the company has continuously pursued technological innovation in the field of solid–liquid separation of nanometer- and micrometer-scale powders, with its related technical solutions having been rigorously validated in a wide range of fine-powder application scenarios.
Website: www.citius-filter.com
Email: wyl@citius-filter.com
Phone: +86 139-5010-7241
Address: No. 16–22, Chunfeng East Road, Xiang’an Torch High-Tech Industrial Zone, Xiamen City, Fujian Province, China
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