Process Overview
In energy storage and battery manufacturing, filtration plays a critical role in ensuring product quality, process stability, and operational safety. From slurry preparation to electrolyte filling and raw material processing, even trace contamination can lead to performance degradation or safety risks.
CMI provides high-precision sintered metal filtration solutions designed for chemically aggressive environments, high-viscosity fluids, and critical contamination control applications.
Key Filtration Applications
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1. Battery Slurry Filtration (Cathode & Anode) • Removal of gel particles and oversized agglomerates • Ensuring uniform particle distribution for coating processes • Stable filtration of high-viscosity slurry systems 2. Electrolyte Purification & Filling • Removal of trace metallic particles and system contaminants • Protection of battery cells from impurity-induced failure • Filtration during electrolyte transfer and filling processes 3. Flow Battery Systems (RFB) • Protection of ion-exchange membranes from particulate contamination • Filtration of circulating electrolyte solutions • Corrosion-resistant filtration for acidic or alkaline media 4. Raw Material Processing (Lithium & Cobalt) • Filtration in leaching and precipitation processes • Catalyst recovery in precursor material production • Solid-liquid and gas-solid separation under harsh chemical conditions |
Filtration Challenges
Battery manufacturing requires extremely high levels of cleanliness and process consistency. Challenges include handling high-viscosity fluids, preventing trace contamination, and ensuring compatibility with aggressive solvents and lithium salts. Conventional filters may suffer from fiber shedding, chemical degradation, or unstable filtration performance.
CMI Filtration Solutions
CMI sintered metal filters provide precise and stable filtration performance without media migration, making them ideal for critical battery manufacturing processes.
- Zero fiber shedding (pure metallic structure)
- Precise filtration accuracy (down to sub-micron level)
- Excellent chemical compatibility with electrolytes and solvents
- High mechanical strength for viscous slurry filtration
- Reusable and cleanable for reduced operational cost
Technical Advantages
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No Media Migration Eliminates contamination risks caused by fiber shedding in battery cells High Pressure Capability Maintains structural integrity in high-viscosity slurry filtration systems Uniform Porosity Ensures consistent slurry quality and coating performance Chemical Stability Compatible with lithium salts and organic solvents without degradation |
Products Overview
Explore our comprehensive range of industrial filtration products
Porous Metal Components
Porous Metal Components Precision Sintered Metal Parts for Filtration, Flow…
Sintered Metal Powder Discs
Sintered Metal Powder Filter Discs Round, Square, and Custom-Shaped Porous…
Multi-Tube Sintered Metal Filter Assembly
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Sintered Metal Fiber Filter
Sintered Metal Fiber Filter High-Porosity Filtration Media for High Flow…