Efficient silicon solar module

A solar module, high-efficiency technology, applied in the direction of electrical components, semiconductor devices, photovoltaic power generation, etc., can solve problems such as the impact of power generation efficiency, and achieve the effect of reducing the requirements of erection dependencies, reducing the probability of occurrence, and light weight

Inactive Publication Date: 2015-12-09
宁波贝达新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be known that the efficiency of solar modules is not only affected by the light efficiency, b

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Structural Example 1

[0042] In this embodiment, the high-efficiency silicon solar module includes a tempered glass layer, an EVA layer I, a monocrystalline silicon layer (which can be a wafer or a thin layer, the same below), an EVA layer II, a back plate, a tempered glass layer, and its outer surface is also plated. Covered with a layer of anti-reflection film, the thickness of each layer of anti-reflection film is d, and d=(n+0.25)λ, where λ=400-760nm, the actual thickness of the anti-reflection film is selected according to the process and actual product needs; EVA layer Ⅰ, which is a highly light-transmitting modified EVA plastic layer coated with an oxygen barrier layer on the exposed surface; EVA layer Ⅱ, which is a high heat dissipation and thermally stable modified EVA plastic layer coated with an oxygen barrier layer on the exposed surface; the back plate, It is a multi-layer structure, and the upper surface layer adjacent to the single crystal silicon layer ...

Example Embodiment

[0043] Structural Example 2

[0044] In this embodiment, the high-efficiency silicon solar module includes a tempered glass layer, an EVA layer I, a monocrystalline silicon layer, an EVA layer II, a back plate, and a tempered glass layer. The thickness of the anti-reflection film is d, and d=(n+0.25)λ, where λ=400-760nm, the actual thickness of the anti-reflection film is selected according to the process and actual product needs; EVA layer I, which is the exposed surface coated with oxygen barrier layer of high light-transmitting modified EVA plastic layer; EVA layer II, which is a high heat dissipation and thermally stable modified EVA plastic layer coated with an oxygen barrier layer on the exposed surface; The upper surface layer adjacent to the layer is a total reflection layer, the total reflection layer includes a layer of total reflection film, a layer of heat conduction layer and a layer of heat dissipation layer are arranged in turn below the total reflection layer, ...

Example Embodiment

[0045] Structural Example 3

[0046] In this embodiment, the high-efficiency silicon solar module includes a tempered glass layer, an EVA layer I, a monocrystalline silicon layer, an EVA layer II, a back plate, and a tempered glass layer. The thickness of the antireflection film is d, and d=(n+0.25)λ, where λ=400-760nm, the actual thickness of each layer of antireflection film is selected according to the process and actual product needs; EVA layer I, which is the exposed surface coating A highly light-transmitting modified EVA plastic layer covered with an oxygen barrier layer; EVA layer II, which is a high heat dissipation and thermally stable modified EVA plastic layer coated with an oxygen barrier layer on the exposed surface; a back plate, which is a multi-layer structure, and The upper surface layer adjacent to the monocrystalline silicon layer is a total reflection layer, the total reflection layer includes two layers of total reflection films, two layers of heat dissip...

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Abstract

The invention discloses an efficient silicon solar module, which comprises a tempered glass layer, an ethylene-vinyl-acetate (EVA) layer I, a silicon layer, an EVA layer II and a back plate, wherein at least one antireflection film also coats the outer surface of the tempered glass layer; the thickness of each antireflection film is d; d=(n+0.25)lambda; lambda is 400-760nm; the exposed surface of the EVA layer I is a high-transmittance modified EVA plastic layer coated with an oxygen barrier layer; the exposed surface of the EVA layer II is a thermally stably modified high-heat dissipation EVA plastic layer coated with the oxygen barrier layer; and the back plate is in a multi-layer structure. The efficient silicon solar module has the advantages of stable structure, high solar utilization efficiency and high generation efficiency, and simultaneously has good heat dissipation property.

Description

technical field [0001] The invention relates to a semiconductor solar photovoltaic equipment component, especially a high-efficiency silicon solar component. Background technique [0002] Solar cell module is a device that directly converts sunlight energy into electrical energy due to the photovoltaic effect. Solar energy is a new type of energy with three advantages of permanence, cleanliness and flexibility. The solar cell module has a relatively long life. It is mainly composed of low-iron ultra-clear tempered glass, EVA film, crystalline silicon solar cell array and backsheet, which are fused and bonded under certain temperature, pressure and vacuum conditions to form a rigid overall structure. Considering the actual use effect of solar cell modules, the power output per unit area has become one of the important parameters for evaluating photovoltaic modules. At the same time, considering factors such as the shortage of monocrystalline silicon raw materials, high wafer...

Claims

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Application Information

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IPC IPC(8): H01L31/048H01L31/049H01L31/056H01L31/052
CPCY02E10/52H01L31/0481H01L31/052
Inventor 陈东波曾宏葛元磊
Owner 宁波贝达新能源科技有限公司
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