Solar cell modules with poly(vinyl butyral) encapsulant comprising unsaturated heterocyclic compound
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United States of America Patent
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Dec 11, 2012
Grant Date -
Jul 22, 2010
app pub date -
Jan 22, 2010
filing date -
Jan 22, 2009
priority date (Note) -
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Abstract
Provided is a solar cell module that comprises a solar cell assembly. The solar cell assembly is encapsulated by a poly(vinyl butyral) encapsulant and contains a silver component that is at least partially in contact with the poly(vinyl butyral) encapsulant. The poly(vinyl butyral) encapsulant comprises poly(vinyl butyral), about 15 to about 45 wt % of one or more plasticizers, and about 0.1 to about 2 wt % of one or more unsaturated heterocyclic compounds, based on the total weight of the poly(vinyl butyral) encapsulant. Further provided are an assembly for preparing the solar cell module; a process for preventing or reducing the discoloration of a poly(vinyl butyral) encapsulant in contact with a silver component in the solar cell module; and the use of the solar cell module to convert solar energy to electricity.
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