Capacitive Deionization Device CDI Cell for Electrosorption Water Desalination and Purification Research

Product Overview

This high-performance laboratory testing system is a specialized electrochemical cell engineered for advanced research in capacitive deionization and electrosorption technology. Operating on the physical principles of electric double-layer capacitor theory, the equipment provides a chemical-free, energy-efficient platform for studying water desalination, dissolved solids removal, and ion-selective purification. By applying a low-voltage electrical field across the electrodes, dissolved charged particles and ions in the feed solution migrate to the oppositely charged poles and are held electrostatically at the electrode-solution interface, achieving highly efficient demineralization.

Designed primarily for academic research laboratories, industrial water treatment developers, and materials science institutions, this unit serves as a robust platform for testing active electrode materials under dynamic flow conditions. Researchers utilize this cell to analyze ion adsorption kinetics, evaluate the thermodynamic properties of electrosorptive interfaces, optimize operational parameters such as flow rate and voltage profiles, and investigate selective recovery of targeted heavy metals or high-value salts from brackish water sources.

Constructed from premium, chemically inert components, the system guarantees high experimental repeatability and prevents cross-contamination. The integration of high-optical-clarity protective endplates, an industrially isolated polyetheretherketone frame, and imported ultra-pure isostatic graphite current collectors ensures long-term operational durability and mechanical stability. Even under high flow rates and continuous electrochemical polarization cycles, the unit maintains its structural integrity and electrical contact pressure, offering unmatched reliability for demanding laboratory applications.

Key Features

• Precision Serpentine Flow Channel: The current collector plate features a meticulously machined serpentine flow path that optimizes liquid residence time and guarantees uniform flow distribution across the entire active electrode surface, eliminating fluid bypass and dead zones.
• Imported Ultra-Pure Isostatic Graphite 520: Constructed using high-grade, isostatically pressed graphite current collectors, the unit exhibits exceptional electrical conductivity, minimal contact resistance, and outstanding chemical resistance against corrosive brackish environments and varied pH conditions.
• High-Performance PEEK Framework: The internal insulating frame is precision CNC-machined from solid polyetheretherketone (PEEK), providing superior mechanical strength, high thermal stability, and absolute chemical inertness to ensure zero leakage and precise internal alignment.
• Optically Clear PMMA Protective Plates: The left and right structural protective plates are fabricated from heavy-duty polymethyl methacrylate, allowing researchers to perform in-situ visual monitoring of fluidic behavior, bubble accumulation, and internal assembly conditions during active testing.
• Ultra-Short Anode-to-Cathode Spacing: Engineered with an inter-electrode distance of less than 3 mm, the cell minimizes internal ohmic resistance, promotes rapid ionic migration, and maximizes the electric field strength under low-voltage operational parameters.
• Highly Modular and Demountable Design: The modular structural architecture allows quick disassembly and assembly, enabling rapid replacement of active electrode materials, spacers, and ion exchange membranes, which significantly speeds up laboratory workflows.
• Optimized Mechanical Seal Integrity: Precision-machined tensioning bolts and alignment features distribute clamping pressure uniformly across the internal graphite plates and gaskets, preventing electrolyte leaks and ensuring consistent electrical connection across all components.
• Standardized Laboratory Compatibility: Equipped with universal fluid ports and durable electrical terminals, this device integrates effortlessly with standard laboratory peristaltic pumps, feed tubing, potentiostats, and battery test channels.

Applications

Technical Specifications

Why Choose This Product

• Premium Material Selection: The combination of imported ultra-pure isostatic graphite (520) and high-stability PEEK avoids structural warping, electrochemical corrosion, and sample contamination, resulting in highly clean and repeatable test data.
• Superior Fluid Dynamics: The precision-machined serpentine flow channel and ultra-narrow inter-electrode spacing (< 3 mm) ensure low fluidic pressure drops, highly uniform mass transport, and optimal current distribution.
• Direct Visual Inspection: Optical-grade PMMA outer plates enable researchers to monitor fluid levels, inspect gas bubble formation, and visually verify the physical integrity of the electrodes without interrupting active experiments.
• End-to-End Customization Capabilities: Leveraged by KINTEK's comprehensive end-to-end custom CNC machining capabilities, this testing cell can be structurally customized in size, flow pattern, or material type to match your exact experimental configuration or multi-stack pilot scale-up.
• Reliable Technical Support: Every unit is backed by our dedicated technical support team, ensuring that you receive professional assistance for system integration, component replacement, and application optimization.

Contact our technical sales team today to request a formal quote or to discuss custom alterations tailored specifically to your laboratory's electrosorption and desalination research programs.

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