{"id":30636,"date":"2024-12-31T14:35:27","date_gmt":"2024-12-31T06:35:27","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=30636"},"modified":"2024-12-31T14:35:27","modified_gmt":"2024-12-31T06:35:27","slug":"ele7002","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ele7002\/","title":{"rendered":"Why choose oxygen-free copper as photovoltaic welding ribbon? The reason for choosing oxygen-free copper"},"content":{"rendered":"

In the photovoltaic industry, chooseOxygen-free copper<\/strong>(Oxygen-Free Copper, OFC) asPhotovoltaic welding ribbon<\/a>The main reason for the material is mainly concentrated in itsExcellent conductivity, corrosion resistance and stability<\/strong>as well asreliability<\/strong>Here are some key reasons why oxygen-free copper solder tape isPhotovoltaic modules<\/a>Common choices:<\/p>\n

1. Excellent electrical conductivity<\/strong><\/h3>\n
    \n
  • Oxygen-free copper has high electrical conductivity<\/strong>: Oxygen-free copper has extremely high copper purity (copper content is usually more than 99.95%) and contains almost no oxygen impurities. Therefore, its electrical conductivity is higher than that of ordinary copper or other alloy materials, which can effectively transmit current and reduce energy loss. For photovoltaic systems, high conductivity means higher conversion efficiency and better conversion of solar energy into electrical energy.<\/li>\n
  • Low resistance<\/strong>: Compared with other materials, especially aluminum or copper clad aluminum,Oxygen-free copper<\/strong>The resistance is lower, which can reduce the energy loss when the current passes through and improve the overall efficiency of the photovoltaic system.<\/li>\n<\/ul>\n

    2. Strong antioxidant capacity<\/strong><\/h3>\n
      \n
    • Oxygen-free copper has better oxidation resistance<\/strong>\uff1aIn electrical applications, oxidation is the main factor that causes the conductivity of materials to decrease. Ordinary copper easily forms an oxide layer in the air, while oxygen-free copper has an extremely low oxygen content and almost no oxidation reaction, which allows oxygen-free copper welding strips to maintain long-term stable electrical conductivity, especially in high temperature and high humidity environments.<\/li>\n
    • Adapt to harsh environment<\/strong>\uff1aPhotovoltaic systems are usually installed outdoors and exposed to sunlight, rain, high temperature, low temperature and humidity for a long time. Oxygen-free copper welding tape can effectively prevent oxidation problems, thereby ensuring the long-term stable operation of photovoltaic modules and reducing the risk of system failure.<\/li>\n<\/ul>\n

      3. Improve welding quality and reliability<\/strong><\/h3>\n
        \n
      • Good welding performance<\/strong>: The welding performance of oxygen-free copper is better than other types of copper or aluminum materials. Due to its high purity and low oxygen content, oxygen-free copper welding strips can ensure good welding quality during welding, the solder joints are more firm and stable, the resistance at the connection points is reduced, and the power loss caused by poor welding is avoided.<\/li>\n
      • Long life of solder joints<\/strong>: Photovoltaic welding ribbons usually bear large currents. If the quality of the welding joints is not good, it may cause heating of the joints, poor contact or poor current flow, thereby reducing system efficiency. The high reliability of oxygen-free copper materials can effectively avoid these problems and improve the durability and stability of the joints.<\/li>\n<\/ul>\n

        4. High temperature stability<\/strong><\/h3>\n
          \n
        • Adapt to high temperature environment<\/strong>: Photovoltaic modules are often exposed to sunlight and experience large temperature fluctuations. In high temperature environments, ordinary copper solder strips may degrade due to thermal expansion or oxidation. However, oxygen-free copper solder strips can maintain low resistance due to their high stability and are not prone to thermal aging or oxidation at high temperatures, effectively extending the service life of photovoltaic systems.<\/li>\n<\/ul>\n
          \"\"