{"id":30652,"date":"2025-01-07T16:54:40","date_gmt":"2025-01-07T08:54:40","guid":{"rendered":"https:\/\/www.ray-tron.com\/?p=30652"},"modified":"2025-01-07T16:54:40","modified_gmt":"2025-01-07T08:54:40","slug":"ele7006","status":"publish","type":"post","link":"https:\/\/www.ray-tron.com\/en\/ele7006\/","title":{"rendered":"The influence of resistivity of photovoltaic ribbon on photovoltaic cells"},"content":{"rendered":"

Photovoltaic welding ribbon<\/a>The resistivity ofPhotovoltaic cells<\/a>The influence of the resistivity of the welding ribbon on the performance of photovoltaic cells is very critical because it is directly related to the current transmission efficiency, power output and long-term stability of photovoltaic cells. Resistivity is an inherent property of the material, reflecting the ease with which the material conducts current. The influence of the resistivity of the welding ribbon on the performance of photovoltaic cells is mainly reflected in the following aspects:<\/p>\n

1. Current loss and efficiency<\/strong><\/h3>\n
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  • High resistivity<\/strong>\uff1aIf the resistivity of the photovoltaic ribbon is high, the current will encounter more resistance when passing through the ribbon, resulting in current loss. This current loss directly affects the overall efficiency of the photovoltaic cell. The greater the current loss, the lower the power generation efficiency of the photovoltaic cell, thereby reducing the power output of the photovoltaic system.<\/li>\n
  • Low resistivity<\/strong>\uff1aThe welding strip with lower resistivity can reduce the resistance of current during transmission, thereby reducing resistance loss and improving current transmission efficiency. This helps photovoltaic cells to more efficiently transfer the generated current to the external circuit and improve the overall efficiency of the photovoltaic system.<\/li>\n<\/ul>\n

    2. Heat generation and thermal management<\/strong><\/h3>\n
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    • High resistivity welding strip<\/strong>\uff1aA soldering ribbon with a higher resistance will generate more heat when current passes through it, because current consumes energy and releases it in the form of heat when it flows through a high-resistance conductor. Excessive heat accumulation will cause the temperature of the photovoltaic cell to rise, affecting the working performance of the cell, and may even cause the cell to overheat, damage the solder joints or materials, and affect the reliability of long-term use.<\/li>\n
    • Low resistivity welding strip<\/strong>\uff1aThe lower resistivity of the solder strip can reduce the heat generated when the current passes through, helping to maintain the temperature of the photovoltaic cell stable. This helps to avoid damage to the cell due to overheating and improves its long-term service life and reliability.<\/li>\n<\/ul>\n

      3. Affect welding quality<\/strong><\/h3>\n
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      • High resistivity welding strip<\/strong>\uff1aThe resistivity of the soldering tape is too high, which will lead to excessive heat accumulation during welding, making it difficult to control the welding temperature, which can easily lead to loose solder joints or poor welding, affecting the overall performance of photovoltaic cells. Poor solder joint quality will lead to increased contact resistance, further affecting the flow of current and the output power of the battery.<\/li>\n
      • Low resistivity welding strip<\/strong>: Low resistivity welding strips usually weld more smoothly, have stronger welds, and have lower contact resistance, which helps improve current transmission efficiency and maintain efficient battery operation.<\/li>\n<\/ul>\n
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