Color Cotton: The production process of crystalline silicon solar cells

The production process of crystalline silicon solar cells

"Silicon" is stored on our planet one of the most abundance of material. Since the 19th century, scientists have found a crystalline silicon semiconductor properties, it would change everything, even human thought, late 20th century. Seen everywhere in our lives, "silicon" figure and role of crystalline silicon solar cells is the formation of the past 15 years the fastest industrialization. Production process can be divided into five steps: a, purification process b, the process of pulling rod c, slicing process d, the process of manufacturing the battery e, packaging process.

Is a component of photovoltaic panels exposed to sunlight will produce direct current electricity generating equipment, by almost all of the semiconductor material (eg silicon) made of a thin solid body composed of photovoltaic cells. In the absence of moving parts, it can be a long time without causing any loss of operation. Simple photovoltaic cells can provide energy for the watch and computer, more complex PV systems can provide lighting for the house, and the power grid. PV panels can be made into different shapes components, and components can be connected to produce more power. In recent years, the surface of roof and building components will use photovoltaic panels, or even used as windows, skylights or obscure part of the installation of these photovoltaic installations are usually attached to the building known as the photovoltaic system.

Solar Thermal

Modern technology solar thermal polymerization of the sun and use its energy to produce hot water, steam and electricity. In addition to the application of appropriate technology to collect solar energy, the building can also use the sun light and heat energy is added in the design of appropriate equipment, such as the giant south-facing windows or can absorb and slowly release the sun heat the building materials .

Battery Introduction

Refers to conventional batteries containing electrolyte solution and the metal electrode to produce current in the cup, tank or other container or containers part of the space complex. As technology advances, the battery can produce electrical energy refers to small devices. Such as solar cells.

About the battery cell performance parameters are force, capacity, specific energy and resistance. Electromotive force equal to the unit positive charge moving from the anode through the cathode inside the battery, the battery of non-electrostatic (chemical force) to the work done. EMF depends on the chemical properties of electrode materials, and battery size. The total output of the battery can charge the battery capacity, usually in units of ampere-hours. In the battery reaction, 1 kg of reactive substances produced by the theory of power as the battery specific energy. Battery specific energy than the theoretical specific energy is small. Because the battery is not all the reactants in the reaction by the battery while the battery internal resistance should lead to reduced force, so often the high energy battery called high-energy batteries. The larger the size of the battery, its resistance is smaller.

Limited battery energy storage, the battery can output the total charge is called its capacity, usually in units of ampere-hour, it is also one of the battery performance parameters. The capacity of the battery electrode material and related to the number, that is, about the size of the electrodes.

Practical chemical batteries can be divided into two basic types: primary cells and batteries [1]. Made after the original battery can generate current, but discharged Jibei abandoned. Battery also known as secondary batteries, charging prior to use, charge and discharge after the discharge can also be charged after the re-use. Battery charging, the energy converted into chemical energy; discharge, chemical energy into electrical energy.

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