New Titanium Electrode Materials To Replace The Traditional Electrode Is The Future Trend Of Electrode Materials

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As the core component of electrolysis, titanium electrode has the advantages of high efficiency, greenness and energy saving, and is gradually replacing traditional electrodes. Under the background of dual carbon, the titanium electrode industry has ushered in development opportunities. The increase in the proportion of hydrogen production by electrolysis of water will promote the expansion of the market space of related electrode materials. In the future, the titanium electrode material industry will continue to innovate and upgrade technology to help achieve the dual carbon goals.

1. Overview of the titanium electrode industry

Electrolysis technology is a new technology that uses electrochemical methods to electrolyze various salt solutions through anodes and cathodes to prepare new materials (metal materials, organic materials, etc.), such as electrolysis of copper foil, aluminum foil, hydrometallurgical electrolysis to extract nickel, cobalt, copper and zinc metals, electrolysis of sodium chloride solution to form sodium hypochlorite for sterilization and disinfection, electrolysis of water to produce hydrogen, and electrosynthesis of various organic compounds. The products produced by electrolysis are important raw materials in the national economy. Titanium electrode materials are the key core components in the electrolysis process. Their performance and electrode structure directly affect the energy consumption of the electrolysis process, the purity, quality and output of the electrolysis products, and directly affect the production environment and production costs of downstream enterprises.

With the continuous development of electrolytic product technology, electrode materials have also undergone three generations of technological innovation and development due to their own characteristics. The first generation is traditional graphite electrodes, the second generation is lead-based alloy electrodes, and the third generation is titanium-based metal oxide coated electrodes. Among them, the first generation of traditional graphite electrodes and the second generation of electrode materials, lead-based alloy electrodes, have low technical difficulty and high industrialization degree, but poor durability and high energy consumption. The third generation of titanium-based oxide electrodes is the electrode material currently being developed. It has strong corrosion resistance and is more green, energy-saving and efficient. The technology has gradually matured and is currently in the product promotion stage. In some industries (such as electrolytic copper foil), it is gradually replacing traditional lead-based electrodes. Green, energy-saving, high efficiency and strong durability are the future development trends of electrode materials. Under the background of "carbon neutrality", it is bound to promote the continuous technological breakthroughs and upgrades of the third generation of titanium-based metal oxide coated electrode materials, and realize the innovation of high energy consumption and large power consumption in the electrolysis field. Promote the realization of energy-saving and consumption reduction goals and help achieve the dual carbon goals as soon as possible.

In the field of electrolytic copper foil, the use and promotion of titanium-based metal oxide coated electrodes is the future development direction of high-performance copper foil. In terms of performance, titanium-based metal oxide coated electrodes have good corrosion resistance, low power consumption, stable cell voltage during the electrolysis process, and good uniformity of raw foil thickness; in terms of electrolysis efficiency, due to the high electrocatalytic activity of surface precious metal oxides, the reaction rate can be greatly increased, with higher energy conversion efficiency, replacing traditional lead-based electrodes is the future development trend; in terms of process, foreign raw foil integrated machines generally adopt embedded process, with 1mm titanium electrode plate, fixed with countersunk screws on the front, because the coating is easy to peel off, making ultra-thin copper foil is prone to soft lines and bubble sand, while the domestic back-pull type is the main one, and the production of ultra-thin copper foil is relatively stable.

2. Under the background of dual carbon goals, it is a development trend for efficient, green and energy-saving titanium electrodes to replace traditional electrodes

Under the background of dual carbon goals and the support of the "14th Five-Year Plan" Comprehensive Work Plan for Energy Conservation and Emission Reduction, the development of electrode materials is bound to upgrade and iterate in the direction of high performance, greenness and low energy consumption. The preparation of titanium electrodes is by coating the surface of titanium substrates with precious metal oxides. This electrode material has the characteristics of low overpotential, low working tank voltage, high production efficiency, and low energy consumption. Compared with traditional graphite and lead-based anodes, it is more efficient, green, and energy-saving. At present, titanium electrodes are widely used in electrolytic copper foil, electrolytic aluminum foil, hydrometallurgy, wastewater treatment, electrolytic organic synthesis, electrolytic water hydrogen production and other industries. These fields all require the use of electrolysis to prepare related products. Therefore, reducing power consumption and energy consumption is the central task of implementing the national "dual carbon" strategic goals in this field. "Green electrolysis" technology will provide key titanium electrode materials and related equipment for the industry, helping related companies achieve their "carbon reduction" goals. The replacement of traditional electrodes with new electrode materials is the development trend of electrode materials in the future.

3. The proportion of hydrogen production by water electrolysis is gradually increasing, and the market space for related electrode materials is broad in the future

Hydrogen energy is a vital component of the future zero-carbon energy system. As one of the major development directions of new energy in the future, countries around the world are actively conducting a lot of in-depth research. my country has successively issued top-level policy plans such as the "Medium- and Long-Term Development Plan for the Hydrogen Energy Industry (2021-2035)" and the "14th Five-Year Plan for Modern Energy System" to encourage breakthroughs in the technical bottlenecks of the hydrogen energy industry and enhance the stability and competitiveness of the industrial chain and supply chain. On the industrial side, the hydrogen energy industry is a strategic emerging industry and a key development direction for future industries. In the development of the hydrogen energy industry, the production of hydrogen is crucial. At present, my country's domestic hydrogen energy mainly comes from coal-to-hydrogen production, accounting for about 64% of my country's hydrogen production capacity, industrial by-product hydrogen production accounts for 21%, natural gas hydrogen production accounts for 14%, and water electrolysis hydrogen production accounts for less than 2%. According to the White Paper on China's Hydrogen Energy and Fuel Cell Industry (2020), the proportion of hydrogen produced by water electrolysis will gradually increase to 10% in 2030, and the room for improvement will exceed 4 times in the next ten years. The proportion of hydrogen produced by water electrolysis will increase to 70% in 2060. In the future, as the technology of hydrogen produced by water electrolysis becomes more mature and the cost decreases, the market for hydrogen produced by water electrolysis will be gradually released, which will increase the demand for related electrode materials such as bipolar plates for hydrogen produced by water electrolysis, and the market space is broad.

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