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A solar cell can only produce about 0. 5 v voltage, the voltage is far lower than the actual application need. In order to meet the needs of practical application, it is necessary to connect the solar cell into components. Solar cell component contains a certain number of solar cells, these solar

a solar cell produce only about 0. 5 v voltage, the voltage is far lower than the actual application need. In order to meet the needs of practical application, it is necessary to connect the solar cell into components. Solar cell component contains a certain number of solar cells, these solar cells through a wire connection. A component, the number of standard solar cells is 36 ( 10厘米× 10厘米) , which means that a solar energy battery components can produce about 17 v voltage, just for a nominal voltage of 12 v battery charged effectively.

through wires connected to the solar cell is sealed into the physical unit known as the solar cell components, has certain corrosion, wind, hail, rain, etc, are widely used in various fields, and systems. When applications need to high voltage and current and a single component cannot meet the requirements, but the multiple components of the solar cell phalanx, in order to obtain the required voltage and current.

the reliability of the solar cells depends largely on its anti-corrosion, wind, hail, rain, etc. The potential problem is the quality of the edge sealing and components on the back of the junction box.

this component is glass, in front of the back is a layer of alloy sheets. The main function of alloy sheet is moisture, anti-fouling. Solar cells are embedded in a layer of polymer. In this kind of solar cell components, batteries and can be directly use wire connection between terminal block.

the component's electrical characteristics mainly refers to the i-v output characteristic, also known as Ⅴ - Ⅰ characteristic curve, as shown in figure 1-3. Ⅴ - Ⅰ characteristic curve according to the circuit of figure 1-3 device is measured. Ⅴ - Ⅰ characteristic curve shows the Im transmitted solar modules of the current and voltage under the solar irradiance of a specific Vm. If the V = 0, solar energy battery components a short circuit current at this time is called the short circuit current Isc; If the circuit is open I = 0, the voltage is called the open circuit voltage Voc. 太阳能电池组件的输出功率等于流经该组件的电流与电压的乘积，即P＝VI .