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Backsheet for a photovoltaic module

A backplane and component technology, applied in the backplane field of photovoltaic modules, can solve the problem of expensive polyimide

Inactive Publication Date: 2012-03-14
DU PONT APOLLO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, polyimide, another type of backsheet structure used in flexible photovoltaic modules, is also an expensive polymer

Method used

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  • Backsheet for a photovoltaic module
  • Backsheet for a photovoltaic module
  • Backsheet for a photovoltaic module

Examples

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Embodiment Construction

[0020] In order to make the description of the present disclosure more detailed and complete, the following provides illustrative descriptions of the implementation modes and specific examples of the present invention; but this is not the only form for implementing or using the specific embodiments of the present invention. The embodiments disclosed below can be combined or substituted for each other when beneficial, and other embodiments can also be added to one embodiment without further description or illustration.

[0021] In the following description, numerous specific details will be set forth in order to enable readers to fully understand the following embodiments. However, embodiments of the invention may be practiced without these specific details. In other instances, well-known structures and devices are only schematically shown in order to simplify the drawings.

[0022] A backsheet for a photovoltaic component is disclosed below. figure 1 A schematic cross-sectio...

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Abstract

Disclosed herein is a backsheet for a photovoltaic member. The backsheet includes a weather-resistant layer, a first adhesive layer and an insulating layer. The weather-resistant layer contains chlorinated polyethylene, and the content of the chlorinated polyethylene is at least 50% by weight of the weather-resistant layer. The weather-resistant layer is situated at an outmost surface of the backsheet. The insulating layer may prevent an electric current generated by the photovoltaic member from leakage through the backsheet. The first adhesive layer is disposed between the weather-resistant layer and the insulating layer.

Description

technical field [0001] The invention relates to an encapsulation sheet, and in particular to a backplane of a photovoltaic module. Background technique [0002] A photovoltaic cell, also known as a solar cell, is a device that converts light energy into electrical energy. Solar cells have many advantages over traditional energy sources. For example, solar cells generate electricity without pollution and without the need for fossil fuels. [0003] Typically, a solar module includes a rigid and transparent protective front sheet (such as glass) and a rear sheet or sheet (commonly referred to as a backsheet). The front sheet and the back sheet encapsulate the solar cells and thus protect the solar cells from environmental degradation. [0004] However, the goal of the solar industry is to develop solar modules with lifetimes of several decades (eg, 20 years). Therefore, the backsheet must be resistant to damage from stress shocks and thermal shocks, as well as minimize degr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/042
CPCC08L23/286Y02E10/50H01L31/049Y10T428/269Y10T428/265Y10T428/31928Y10T428/31699Y10T428/31786Y10T428/31576Y10T428/31797Y10T428/31551Y10T428/31678Y10T428/31935Y10T428/31859Y10T428/3158
Inventor 郑有生
Owner DU PONT APOLLO