High Voltage Solar Battery Components And Power Generation Efficiency

• High Voltage solar battery component composition and functions of each part.

• Power generation efficiency of High Voltage solar battery.

High Voltage solar battery component composition and functions of each part

1. Tempered glass: Its function is to protect the main body of power generation (such as batteries), and there are requirements for the selection of light transmission: First, the light transmittance must be high, generally more than 91%. Second, ultra-white tempered treatment.

2. EVA: It is used to bond and fix tempered glass and power generation main body (such as battery sheet). The quality of transparent EVA material directly affects the life of the component. EVA exposed to the air is easy to age and turn yellow, which affects the light transmission of the component In addition to the quality of EVA itself, the impact of the lamination process of the module manufacturer is also very large. If the degree of EVA bonding is not up to the standard, the bonding strength between EVA and tempered glass and the backplane is not enough, which will cause EVA ages prematurely, affecting component life. It is mainly used for bonding and encapsulating the power generation main body and the backplane.

3. Cells: The main function is to generate electricity. The mainstream of the power generation market is crystalline silicon High Voltage solar batteries and thin-film High Voltage solar batteries. Both have their advantages and disadvantages. Crystalline silicon High Voltage Lithium Battery has relatively low equipment cost and high photoelectric conversion efficiency. It is more suitable for power generation under outdoor sunlight, but the consumption and battery cost are high. Thin-film High Voltage solar battery has low consumption and battery cost. The weak light effect is very good, and it can also generate electricity under ordinary light. However, the relative equipment cost is relatively high, and the photoelectric conversion efficiency is more than half of that of crystalline silicon cells, such as the solar battery 48v 200ah on the calculator.

4. Backplane: The function is sealing, insulation, and waterproofing. Generally, materials such as TPT and TPE must be resistant to aging. Most component manufacturers have a 25-year warranty. Tempered glass and aluminum alloy are generally no problem. The key lies in the connection with the backplane. Whether the board and silica gel can meet the requirements.

5. The aluminum alloy protective laminate plays a certain role in sealing and supporting.

6. The junction box protects the entire power generation system and acts as a current transfer station. If the component is short-circuited, the junction box automatically disconnects the short-circuited battery string to prevent the entire system from being burned out. The most critical thing in the junction box is the selection of diodes. According to the components inside Different types of batteries, slices have different corresponding diodes.

7. Silicone acts as a seal and is used to seal the junction between the component and the aluminum alloy frame, and the component and the junction box. Some companies use double-sided adhesive strips and foam to replace silica gel. Silica gel is widely used in China. The process is simple, convenient, and easy to operate, and the cost is very low.

Power generation efficiency of High Voltage solar battery

The highest photoelectric conversion efficiency of monocrystalline silicon solar energy reaches 24%, which is the highest photoelectric conversion efficiency among all types of High Voltage solar batteries. However, the production cost of monocrystalline silicon High Voltage solar batteries is so high that they cannot be widely and commonly used in large quantities. Polycrystalline silicon High Voltage solar battery is cheaper than monocrystalline silicon High Voltage solar battery in terms of production cost, but the photoelectric conversion efficiency of polycrystalline silicon High Voltage solar battery is much lower. In addition, the service life of polycrystalline silicon High Voltage solar batteries is also It is shorter than monocrystalline silicon High Voltage solar batteries. Therefore, in terms of cost performance, a monocrystalline silicon lithium iron phosphate battery is slightly better.

Researchers have found that some compound semiconductor materials are suitable for solar photoelectric conversion thin films. For example, CdS, CdTe; Ⅲ-V compound semiconductors: GaAs, AIPInP, etc. Thin-film High Voltage solar batteries made of these semiconductors exhibit good photoelectric conversion efficiency. Semiconductor materials with multiple gradient energy band gaps can expand the range of the solar energy absorption spectrum, thereby improving the photoelectric conversion efficiency. A large number of practical applications of the thin film High Voltage solar battery present a broad prospect. Among these multiple semiconductor materials, Cu(In, Ga)Se2 is a solar light-absorbing material with excellent performance. Based on it, it is possible to design a thin-film battery backup solar whose photoelectric conversion efficiency is significantly higher than that of a silicon thin-film High Voltage solar battery, and the photoelectric conversion rate that can be achieved is 18%.

If you are interested in our High Voltage solar battery products or have other needs, you can contact us. Our website is http://www.jingnooenergy.com/. Welcome and look forward to cooperating with you. Our company adheres to the corporate culture of "quality first, customer first", and has always made unremitting efforts to become a professional supplier of 51.2V 10kWh lifepo4 batteries in the industry.