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Product Features
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1Excellent Corrosion Resistance
Titanium exhibits outstanding corrosion resistance in oxidative media and chloride ion environments, and can withstand the long-term erosion of acidic electrolytes such as copper sulfate, nickel sulfate, and zinc chloride. A dense oxide film (TiO₂) forms easily on its surface, which is highly stable and has a long service life (typically over 5 to 10 years).
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2Good Electrical Conductivity and Low Resistance
Titanium itself has a relatively high resistivity, but its conductivity can be significantly enhanced and the cell voltage reduced by applying special surface treatments, such as coating with noble metal oxide layers, thereby saving electrical energy. Common coating materials include ruthenium-iridium (Ru-Ir) and platinum (Pt), which possess both catalytic activity and stability.
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3High Strength and Lightweight
Titanium has a density of only 57% that of steel, yet its strength is close to that of common steel. It is easy to install and transport, and can withstand mechanical stress during the electrolysis process. It has good rigidity and is not prone to deformation under long-term current, ensuring the stability of the plate spacing.
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4Surface Characteristics Optimization
The surface can undergo treatments such as sandblasting and activation to enhance the adhesion of the coating, or be designed with specific patterns to facilitate gas release (such as hydrogen evolution during electrolysis). The coating can reduce the overpotential for metal deposition and increase current efficiency.
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5Environmental Protection and Economy
Long service life reduces replacement frequency and lowers maintenance costs. Titanium material is recyclable and requires less coating metal, meeting the requirements of green production.
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Application Field Analysis
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Copper electrolysis: Used as the hanging ear of stainless steel cathode plates or as a substitute for some cathode components to produce high-purity cathode copper (above 99.99%).
Zinc electrolysis: Serves as the cathode plate in zinc sulfate electrolyte to deposit zinc metal, resistant to acid corrosion and easy to strip the zinc layer.
Nickel, cobalt, manganese electrolysis: Applied in sulfate or chloride systems, capable of withstanding high-temperature and strong acid environments. -
As insoluble cathodes or anodes, coating titanium cathodes are used in precious metal plating (such as gold plating and platinum plating), ensuring uniform current distribution.
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In the ion-exchange membrane electrolytic cell, the titanium cathode plate serves as a component of the cathode chamber and is subject to the corrosion of high-temperature and high-concentration alkaline solution.
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It is used in electrocoagulation, electro-Fenton and other processes to treat heavy metal-containing wastewater. The titanium substrate is corrosion-resistant and the coating has high catalytic activity.
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It is used as a cathode carrier in the electrolysis of lithium battery material precursors (such as electrolytic manganese dioxide) and in the field of hydrogen energy (electrolysis of water for hydrogen production).
Conclusion
Titanium cathode plates, with their advantages of corrosion resistance, lightweight, long service life and modifiable coating, have become the core components of high-end electrolytic processes. With the improvement of efficiency and quality in hydrometallurgy and the rapid development of the new energy industry, their application scenarios will further expand. Technological innovation is focused on high-performance coatings, structural lightweighting and cost optimization to meet the demands of green manufacturing and energy conservation.
Baoji Special Steel Titanium Industry Co., Ltd. has been dedicated to researching and manufacturing composite electrode plate series products for nearly two decades. During this period, they have continuously improved the production equipment and gradually achieved production automation. Titanium cathodes and stainless steel cathode products have reached hundreds of thousands of pieces, which have been exported to countries such as South Africa, Chile, Zambia and Canada, and have established good long-term cooperative relationships with international renowned customers.
Frequently Asked Questions
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Titanium cathode plates offer significantly better corrosion resistance compared to stainless steel, particularly in acidic electrolyte environments containing chloride ions or sulfate compounds. They form a stable TiO₂ oxide layer on the surface, providing a longer service life (typically 5–10+ years), reduced maintenance frequency, and better performance in aggressive chemical conditions such as those found in copper, zinc, and nickel electrolysis.
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The most common coatings applied to titanium cathode plates are ruthenium-iridium (Ru-Ir) oxide and platinum (Pt). These noble metal oxide coatings significantly enhance electrical conductivity, reduce cell voltage, and lower the overpotential for metal deposition. They also possess excellent catalytic activity and chemical stability, making them ideal for high-efficiency electrolysis processes.
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Under normal operating conditions, titanium cathode plates typically have a service life of 5 to 10 years or more. The dense TiO₂ oxide film that naturally forms on the titanium surface provides outstanding chemical stability. The actual lifespan depends on the specific electrolyte composition, operating temperature, current density, and the type of surface coating applied.
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Titanium cathode plates are most widely used in hydrometallurgy (copper, zinc, nickel, cobalt, and manganese electrolysis), the electroplating industry (precious metal plating such as gold and platinum), the chlor-alkali industry, electrochemical water treatment (wastewater treatment), and the new energy sector (lithium battery material preparation and hydrogen production via water electrolysis).
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Yes. Titanium cathode plates are both environmentally friendly and economically advantageous. Their long service life reduces replacement frequency and lowers overall maintenance costs. Titanium is a fully recyclable material, and the coatings require relatively small amounts of precious metals, minimizing resource consumption. These characteristics align well with the goals of green manufacturing and sustainable industrial production.
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Common surface treatment processes for titanium cathode plates include sandblasting and chemical activation to improve coating adhesion. Specific surface patterns or textures may also be designed to facilitate gas release during electrolysis, such as hydrogen evolution. These treatments help reduce overpotential for metal deposition, increase current efficiency, and extend the overall service life of the electrode.