In the field of new materials, carbon graphite has become an indispensable basic material for the development of modern industry and high-tech with its excellent properties of high temperature resistance, electrical and thermal conductivity, chemical stability and self-lubrication. From traditional metallurgy and chemical industries to cutting-edge fields such as new energy and semiconductors, carbon graphite is deeply penetrating various industrial links with its diverse forms and functions.
Table of contents
1. Overview of carbon graphite material properties
2. Analysis of core application areas
2.1 New energy field: battery negative electrode and energy storage cornerstone
2.2 Metallurgical industry: key consumables for high-temperature smelting
2.3 Chemical industry and environmental protection: corrosion-resistant equipment and purification materials
2.4 Electronic information: semiconductor and heat dissipation core materials
2.5 Other application scenarios
3. Market structure and development trend
4. Industry challenges and response strategies
5. Conclusion
Overview of carbon graphite material properties
Carbon graphite material is a crystalline material formed by high-temperature heat treatment of Carbon Graphite Bushing, which has both metal and non-metal properties. Its unique layered arrangement of carbon atoms gives the material advantages such as low friction coefficient (0.05 - 0.15), high melting point (3652℃), and good conductivity (conductivity can reach 10⁴ S/m). According to the differences in processing technology and microstructure, carbon graphite can be divided into natural graphite, artificial graphite and special graphite. Different types of materials have different focuses on purity, density and mechanical properties, laying the foundation for diversified applications.
Analysis of core application areas
2.1 New energy field: battery negative electrode and energy storage cornerstone
In the manufacturing of lithium-ion batteries, carbon graphite negative electrode materials occupy a dominant position. Natural graphite has a cost advantage (price of about 6,000-15,000 yuan/ton) and accounts for more than 70% of the market share in low- and medium-end batteries; artificial graphite has become the first choice for high-end power batteries with higher energy density (≥360 mAh/g) and cycle stability. Tesla 4680 battery negative electrode uses high-purity artificial graphite. In 2023, the global lithium battery negative electrode material market size will reach 65 billion yuan, and it is expected to exceed 100 billion yuan in 2025, and the annual growth rate of carbon graphite material demand will exceed 20%.
In addition, in new energy storage devices such as flow batteries and supercapacitors, carbon graphite materials improve energy storage efficiency by optimizing electrode structure. The graphene-graphite composite electrode developed by Argonne National Laboratory in the United States has increased the energy density of supercapacitors by 40%.
2.2 Metallurgical Industry: Key Consumables for High-Temperature Smelting
In the process of steel and nonferrous metal smelting, carbon graphite products bear the core functions of high temperature resistance and corrosion resistance. As the core component of electric arc furnace steelmaking, the quality of graphite electrodes directly affects smelting efficiency and energy consumption. The price of a single ultra-high power graphite electrode with a diameter of 600mm can reach 50,000 to 80,000 yuan, and the global annual consumption is about 1.5 million tons. China is the largest producer of graphite electrodes, accounting for 75% of the world's output in 2024, among which companies such as Fangda Carbon occupy a major share of the high-end market.
At the same time, products such as graphite crucibles and continuous casting crystallizers use the low thermal expansion coefficient and thermal shock resistance of carbon graphite to ensure the stable forming of molten metal.
2.3 Chemical Industry and Environmental Protection: Corrosion-Resistant Equipment and Purification Materials
The chemical inertness of carbon graphite makes it an ideal material for chemical equipment. Graphite heat exchangers achieve efficient heat transfer through layered structures, and their heat transfer coefficient can reach 800-1500 W/(m²・K), which is 2-3 times that of metal heat exchangers. They are widely used in highly corrosive working conditions such as chlorine-alkali and sulfuric acid. The graphite falling film absorber produced by Germany's SGL Group has a service life of more than 10 years and has a global chemical market share of more than 30%.
In the field of environmental protection, activated carbon (special carbon material) is used for industrial waste gas desulfurization and denitrification and drinking water purification with its ultra-high specific surface area (1000-3000 m²/g). In 2024, the global activated carbon market size reached US$5.5 billion, with China contributing 60% of the production capacity.
2.4 Electronic Information: Semiconductor and Heat Dissipation Core Materials
In semiconductor manufacturing, carbon graphite materials are used to manufacture high-precision equipment such as wafer fixtures and ion implantation components. Its low outgassing and thermal stability can avoid chip process contamination. The high-purity graphite parts produced by Toyo Tanso of Japan have an impurity content of less than 1 ppm, accounting for 60% of the global semiconductor graphite market.
In the field of electronic heat dissipation, graphite heat dissipation film quickly disperses the heat of the chip through interlayer heat conduction (1500-1800 W/(m・K)). Xiaomi 14, iPhone 16 and other flagship models all use flexible graphite heat dissipation solutions, driving the global heat dissipation graphite film market to grow by 18% annually.
2.5 Other application scenarios
In the aerospace field, carbon-carbon composite materials (carbon graphite-based) are used for rocket engine throat linings and aircraft brake discs with low density (1.8-2.1 g/cm³) and high specific strength; in the nuclear industry, high-purity graphite is used as a nuclear reactor moderator and reflector to ensure the stability of nuclear reactions; in the biomedical field, carbon graphite coating materials are used in artificial joint manufacturing due to their good biocompatibility.
Market structure and development trend
The global carbon graphite market is highly concentrated, with China, Japan and the United States accounting for 80% of the production capacity. According to Grand View Research data, the global carbon graphite market will reach US$42 billion in 2024 and is expected to exceed US$75 billion in 2030, with new energy and semiconductor fields contributing more than 60% of the increase.
Technologically, breakthroughs in mass production of new carbon materials such as graphene and carbon nanotubes are driving the carbon graphite industry to upgrade to high performance and functionalization. China has formed a complete industrial chain in the field of lithium battery negative electrode materials, and the energy density of silicon-carbon negative electrode products of companies such as BYD has exceeded 500 mAh/g; Japan maintains a technological lead in high-end semiconductor graphite and special carbon composite materials.
| Application areas | Core products | Technical indicators | Market size (2024) | Main producing countries |
| New energy | Lithium battery negative electrode materials | Energy density ≥ 360 mAh/g | 65 billion yuan | China, Japan |
| Metallurgy | Graphite electrodes | Diameter 600mm Ultra-high power | 12 billion US dollars | China |
| Chemical industry | Graphite heat exchangers | Heat transfer coefficient 800 - 1500 W/(m²・K) | 5.5 billion US dollars | Germany, China |
| Electronic information | Semiconductor graphite components | Impurities <1 ppm | 8 billion US dollars | Japan |
| Environmental protection | Activated carbon | Specific surface area 1000 - 3000 m²/g | 5.5 billion US dollars | China |
Industry Challenges and Response Strategies
Despite the broad prospects, the carbon graphite industry still faces multiple challenges. On the one hand, the over-exploitation of natural graphite resources has caused environmental controversy. China has listed graphite as a strategic mineral since 2023 and implemented total quantity control; on the other hand, high-end products rely on imports, and domestic companies still have a gap with international companies in high-purity graphite and carbon composite materials technology.
Corporate response strategies include: increasing R&D investment, breaking through key technologies such as high-purity graphite preparation and carbon-Carbon Graphite Bushing densification; promoting green production, developing tailings comprehensive utilization and waste graphite recycling technology; strengthening international cooperation, and enhancing global competitiveness through mergers and acquisitions and technology licensing.
Conclusion
From the traditional industrial cornerstone to the high-tech engine, carbon graphite materials are reshaping the industrial landscape with a continuous innovative attitude. With the explosive growth of strategic emerging industries such as new energy and semiconductors, the strategic value of carbon graphite will be further highlighted. In the future, through technological breakthroughs and industrial synergy, carbon graphite is expected to open up new application space in cutting-edge fields such as carbon neutrality and quantum computing, and become an important force in promoting the global scientific and technological revolution.