Solar Cell Sealing Material Insulation via Crosslinking
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Solution Overview
Problem
Sealing materials for solar cells in high-voltage solar power generation systems (600 V or more) face challenges in enhancing insulation properties.
Innovation Solution
A heat-crosslinking resin composition comprising an ethylene copolymer, a crosslinking agent, and a crosslinking aid that includes a polyfunctional monomer with 4 or more (meth)acryloyl groups in combination with triallyl isocyanurate (TAIC) is used to improve the sealing material's insulation properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional sealing material is used for solar cells, then basic sealing functions are achieved, but insulation properties are insufficient for high-voltage systems (600 V or more)
Solution Approach 1:
The patent changes the chemical composition parameters of the sealing material by incorporating specific crosslinking agents and fillers, transforming the material properties to achieve sufficient insulation performance for high-voltage systems while maintaining sealing functionality
Solution Approach 2:
The patent creates a composite sealing material by combining ethylene-vinyl acetate copolymer base resin with crosslinking agents (peroxide and silane), fillers (glass beads, aluminum oxide), and other additives, achieving enhanced insulation properties that neither component could provide alone
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly enhances the insulation properties of the sealing material, effectively addressing the insulation challenges in high-voltage solar power generation systems.
Implementation Method 1
a crosslinking aid that comprises a polyfunctional monomer having 4 or more (meth)acryloyl groups in combination with triallyl isocyanurate
Implementation Method 2
a heat-crosslinking resin composition comprising an ethylene copolymer, a crosslinking agent and a crosslinking aid
Data Source
AI summary
The present invention provides a sealing material for a solar cell used in a solar power generation system having a system voltage of 600 V or more. The sealing material is constituted of a heat-crosslinking resin composition comprising an ethylene copolymer, a crosslinking agent and a crosslinking aid that comprises a polyfunctional monomer having 4 or more (meth)acryloyl groups in combination with triallyl isocyanurate.