Cis Type Thin-Film Photovoltaic Module, Process for Producing the Photovoltaic Module, and Method of Separating the Module
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United States of America Patent
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Issued Date -
May 8, 2008
app pub date -
Dec 22, 2005
filing date -
Dec 22, 2004
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Abandoned
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Abstract
Constituent materials of a CIS type thin-film photovoltaic module are made separable and recyclable without reducing output characteristics and durability. A thin-film photovoltaic module 1 having a substrate structure comprising a CIS type thin-film solar cell device 2 and a cover glass 4 bonded to the light incidence side of the device 2 with a thermally crosslinked EVA resin or the like 3 as an adhesive is made to include a non-adhesive plastic (e.g., polyester) resin 6 sandwiched between the solar cell device 2 and the EVA resin 3. Thus, the constituent materials are separable. Through later simple separation steps, the constituent materials are separated and recovered.
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