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    Aiko high efficiency double-sided PERC battery dual-test binning technology

    Aiko high efficiency double-sided PERC battery dual-test binning technology

    • Categories:Company News
    • Author:
    • Origin:
    • Time of issue:2020-04-26 18:00
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    (Summary description)In recent years, due to its advantages of high power generation, the double-sided battery module solution has been studied more and more in the industry. At present, most of the system-end factors of double-sided power generation are studied, such as system design (such as azimuth, tilt angle, height, support structure, inverter, circuit, etc.) will be considered and optimized in the early stage of power station construction. However, there is little research on the efficiency consistency and reliability issues of power generation on the back of double-sided battery modules. Aiko is the world's first "double-sided double-test double-bind" technology, giving full play to the advantages of double-sided According to relevant research and experimental data, if the back efficiency of the double-sided battery is double-tested and double-binned, the double-sided advantage can be fully utilized. Through continuous efforts and a lot of investment from Axu, Axu has created the world's first "double-sided dual-test double-bind" technology, and will officially provide the market with double-sided batteries that meet the above standards on July 1, 2019: The double-sided battery is divided into 0.1% on the front and 0.5% on the back to solve the risk of component mismatch caused by the inconsistency of the back efficiency, and the battery with abnormally low back efficiency is selected to effectively reduce the hot spot of the component and the risk of PID failure (Figure 1), and through the use of binned and undivided battery packaging components for outdoor power station demonstration, showing that the power generation of the bin group is significantly higher than the bin group, of which 0.5% bin group is about 3% of the bin group The power generation gain (Figure 2). 1 Figure 1 PID test results of components made from batteries with abnormally low backside efficiency (Remarks: UL1-5 is a component with a battery with abnormally low backside efficiency, M1 & 2 is a normal component) 1 Fig. 2 Outdoor demonstration power generation gain with different efficiency on the back "Double-sided dual-test dual-bin" has more advantages on the battery side After the research surface of Ai Xu, the "two-sided double-test double-bin" technology has the following advantages on the battery side 1. The battery double test bin can effectively screen out the abnormal efficiency of the back side of the battery; 2. The power of the back of the module is 0.5W or less after 0.5% binning of the battery (outdoor consideration). Schematic diagram of the back-stage battery is shown in Figure 3. 1 Figure 3 Schematic diagram of efficiency binning rules on the back Analysis of Aixu battery dual-test binning technology Aixu's innovative double-sided, double-test, and binning technology can complete the double-sided detection and binning of each battery in a single test process: it can independently measure the IV curve and output power under front and back STC conditions, and front STC conditions + IV curve and output power under 0.2 sun synchronous light on the back. Double-sided battery double test process is as follows: Step1: Test the back I-V curve and output power under STC conditions; Step2: STC condition test front + back 0.2 sun synchronous light measurement total power (the back 0.2 sun is adjustable during this test); Step3: Test the positive I-V curve and output power under STC conditions. 1 Figure 3 Double-measured back and front light intensity of crystalline silicon battery The front and back of the dual test equipment use independent light sources to avoid mutual interference; the 3A + light source accurately simulates the natural environment, making the test data closer to the actual power generation situation. 1 Fig. 5 Schematic diagram of software interface and machine of dual test equipment Source: Halm official website Summary: Aixu double-sided dual-test double-bin is superimposed on the traditional front 0.1% efficiency bin to superimpose the back 0.5% efficiency bin, which can realize the battery "highest front efficiency, consistent rear efficiency"; component "highest double-sided power generation". Customers use Aixu's double-sided dual-test and binned batteries to make components. In addition to meeting the double-sided rate consistency requirements of each single component, it can also meet the requirements of power plant array power generation consistency, which can effectively reduce the risk of component failure. The value of double-sided battery components, owners, design institutes and EPC can accurately estimate the amount of power generated on the front and back according to different reflectances of different terrains, different environments and scenarios, and provide a basis for accurate analysis of power plant IRR and planning and design. Promote the photovoltaic industry to reduce the cost of electricity.

    Aiko high efficiency double-sided PERC battery dual-test binning technology

    (Summary description)In recent years, due to its advantages of high power generation, the double-sided battery module solution has been studied more and more in the industry. At present, most of the system-end factors of double-sided power generation are studied, such as system design (such as azimuth, tilt angle, height, support structure, inverter, circuit, etc.) will be considered and optimized in the early stage of power station construction. However, there is little research on the efficiency consistency and reliability issues of power generation on the back of double-sided battery modules.

    Aiko is the world's first "double-sided double-test double-bind" technology, giving full play to the advantages of double-sided

    According to relevant research and experimental data, if the back efficiency of the double-sided battery is double-tested and double-binned, the double-sided advantage can be fully utilized. Through continuous efforts and a lot of investment from Axu, Axu has created the world's first "double-sided dual-test double-bind" technology, and will officially provide the market with double-sided batteries that meet the above standards on July 1, 2019: The double-sided battery is divided into 0.1% on the front and 0.5% on the back to solve the risk of component mismatch caused by the inconsistency of the back efficiency, and the battery with abnormally low back efficiency is selected to effectively reduce the hot spot of the component and the risk of PID failure (Figure 1), and through the use of binned and undivided battery packaging components for outdoor power station demonstration, showing that the power generation of the bin group is significantly higher than the bin group, of which 0.5% bin group is about 3% of the bin group The power generation gain (Figure 2).





    1



    Figure 1 PID test results of components made from batteries with abnormally low backside efficiency

    (Remarks: UL1-5 is a component with a battery with abnormally low backside efficiency, M1 & 2 is a normal component)



    1



    Fig. 2 Outdoor demonstration power generation gain with different efficiency on the back

    "Double-sided dual-test dual-bin" has more advantages on the battery side

    After the research surface of Ai Xu, the "two-sided double-test double-bin" technology has the following advantages on the battery side

    1. The battery double test bin can effectively screen out the abnormal efficiency of the back side of the battery;

    2. The power of the back of the module is 0.5W or less after 0.5% binning of the battery (outdoor consideration).

    Schematic diagram of the back-stage battery is shown in Figure 3.







    1



    Figure 3 Schematic diagram of efficiency binning rules on the back

    Analysis of Aixu battery dual-test binning technology

    Aixu's innovative double-sided, double-test, and binning technology can complete the double-sided detection and binning of each battery in a single test process: it can independently measure the IV curve and output power under front and back STC conditions, and front STC conditions + IV curve and output power under 0.2 sun synchronous light on the back.

    Double-sided battery double test process is as follows:

    Step1: Test the back I-V curve and output power under STC conditions;

    Step2: STC condition test front + back 0.2 sun synchronous light measurement total power (the back 0.2 sun is adjustable during this test);

    Step3: Test the positive I-V curve and output power under STC conditions.



    1



    Figure 3 Double-measured back and front light intensity of crystalline silicon battery

    The front and back of the dual test equipment use independent light sources to avoid mutual interference; the 3A + light source accurately simulates the natural environment, making the test data closer to the actual power generation situation.



    1



    Fig. 5 Schematic diagram of software interface and machine of dual test equipment

    Source: Halm official website

    Summary:

    Aixu double-sided dual-test double-bin is superimposed on the traditional front 0.1% efficiency bin to superimpose the back 0.5% efficiency bin, which can realize the battery "highest front efficiency, consistent rear efficiency"; component "highest double-sided power generation". Customers use Aixu's double-sided dual-test and binned batteries to make components. In addition to meeting the double-sided rate consistency requirements of each single component, it can also meet the requirements of power plant array power generation consistency, which can effectively reduce the risk of component failure. The value of double-sided battery components, owners, design institutes and EPC can accurately estimate the amount of power generated on the front and back according to different reflectances of different terrains, different environments and scenarios, and provide a basis for accurate analysis of power plant IRR and planning and design. Promote the photovoltaic industry to reduce the cost of electricity.

    • Categories:Company News
    • Author:
    • Origin:
    • Time of issue:2020-04-26 18:00
    • Views:
    Information

    In recent years, due to its advantages of high power generation, the double-sided battery module solution has been studied more and more in the industry. At present, most of the system-end factors of double-sided power generation are studied, such as system design (such as azimuth, tilt angle, height, support structure, inverter, circuit, etc.) will be considered and optimized in the early stage of power station construction. However, there is little research on the efficiency consistency and reliability issues of power generation on the back of double-sided battery modules.

    Aiko is the world's first "double-sided double-test double-bind" technology, giving full play to the advantages of double-sided

     According to relevant research and experimental data, if the back efficiency of the double-sided battery is double-tested and double-binned, the double-sided advantage can be fully utilized. Through continuous efforts and a lot of investment from Axu, Axu has created the world's first "double-sided dual-test double-bind" technology, and will officially provide the market with double-sided batteries that meet the above standards on July 1, 2019: The double-sided battery is divided into 0.1% on the front and 0.5% on the back to solve the risk of component mismatch caused by the inconsistency of the back efficiency, and the battery with abnormally low back efficiency is selected to effectively reduce the hot spot of the component and the risk of PID failure (Figure 1), and through the use of binned and undivided battery packaging components for outdoor power station demonstration, showing that the power generation of the bin group is significantly higher than the bin group, of which 0.5% bin group is about 3% of the bin group The power generation gain (Figure 2).

     

     

    1

     

    Figure 1 PID test results of components made from batteries with abnormally low backside efficiency

    (Remarks: UL1-5 is a component with a battery with abnormally low backside efficiency, M1 & 2 is a normal component)

     

    1

     

    Fig. 2 Outdoor demonstration power generation gain with different efficiency on the back

    "Double-sided dual-test dual-bin" has more advantages on the battery side

    After the research surface of Ai Xu, the "two-sided double-test double-bin" technology has the following advantages on the battery side

    1. The battery double test bin can effectively screen out the abnormal efficiency of the back side of the battery;

    2. The power of the back of the module is 0.5W or less after 0.5% binning of the battery (outdoor consideration).

      Schematic diagram of the back-stage battery is shown in Figure 3.

     

     

     

    1

     

    Figure 3 Schematic diagram of efficiency binning rules on the back

    Analysis of Aixu battery dual-test binning technology

    Aixu's innovative double-sided, double-test, and binning technology can complete the double-sided detection and binning of each battery in a single test process: it can independently measure the IV curve and output power under front and back STC conditions, and front STC conditions + IV curve and output power under 0.2 sun synchronous light on the back.

    Double-sided battery double test process is as follows:

    Step1: Test the back I-V curve and output power under STC conditions;

    Step2: STC condition test front + back 0.2 sun synchronous light measurement total power (the back 0.2 sun is adjustable during this test);

    Step3: Test the positive I-V curve and output power under STC conditions.

     

    1

     

    Figure 3 Double-measured back and front light intensity of crystalline silicon battery

    The front and back of the dual test equipment use independent light sources to avoid mutual interference; the 3A + light source accurately simulates the natural environment, making the test data closer to the actual power generation situation.

     

         1

     

    Fig. 5 Schematic diagram of software interface and machine of dual test equipment

    Source: Halm official website

    Summary:

     Aixu double-sided dual-test double-bin is superimposed on the traditional front 0.1% efficiency bin to superimpose the back 0.5% efficiency bin, which can realize the battery "highest front efficiency, consistent rear efficiency"; component "highest double-sided power generation". Customers use Aixu's double-sided dual-test and binned batteries to make components. In addition to meeting the double-sided rate consistency requirements of each single component, it can also meet the requirements of power plant array power generation consistency, which can effectively reduce the risk of component failure. The value of double-sided battery components, owners, design institutes and EPC can accurately estimate the amount of power generated on the front and back according to different reflectances of different terrains, different environments and scenarios, and provide a basis for accurate analysis of power plant IRR and planning and design. Promote the photovoltaic industry to reduce the cost of electricity.

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