18-01-2018 дата публикации
Номер: US20180019354A1
Принадлежит:
LG CHEM, LTD.
The present invention relates to a photovoltaic cell module. The present invention can provide a photovoltaic cell module with excellent durability capable of preventing separation of layers constituting the module and the decolorization and discoloration of an encapsulant, caused by long-term use or moisture permeation. In addition, the present invention can provide a photovoltaic cell module with excellent power generation efficiency. 1. A photovoltaic cell module comprising:an upper substrate;a lower substrate; anda photovoltaic cell or a photovoltaic cell array; andan encapsulant between the upper substrate and the lower substrate, the encapsulant comprising a first layer comprising an aryl group-containing silicone resin and a second layer comprising an aryl group-containing silicone resin and a light scattering particle that is uniformly dispersed in the second layer, {'br': None, 'i': 'X≧', '0.15\u2003\u2003[General Formula 1]'}, 'wherein the aryl group-containing silicone resin comprised in the first layer satisfies a condition of General Formula 1wherein, X represents an average molar ratio (aryl groups/silicon atoms) of the aryl groups in the aryl group-containing silicone resin with respect to the silicon atoms in the aryl group-containing silicone resin,wherein the photovoltaic cell or the photovoltaic cell array is encapsulated by the first layer comprising an aryl group-containing silicone,wherein the second layer is in direct physical contact with the first layer and not to be in contact with the photovoltaic cell or photovoltaic cell array, [{'br': None, 'sup': 1', '2', '3', '4', '5', '6, 'sub': 1/2', 'a', '2/2', 'b', '3/2', 'c', '4/2', 'd, '(RRRSiO)(RRSiO)(RSiO)(SiO)\u2003\u2003[Chemical Formula 1]'}, {'br': None, 'sup': 7', '8, 'sub': '2/2', '(RRSiO)\u2003\u2003[Chemical Formula 2]'}, {'br': None, 'sup': '9', 'sub': '3/2', '(RSiO)\u2003\u2003[Chemical Formula 3]'}], 'wherein the aryl group-containing silicone resin comprised in the first layer is a ...
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