Solar cell module
AssigneeMitsui Chemicals Tohcello, Inc.
InventorTakanobu Murofushi
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Abstract
Provided is a solar cell module wherein a rear surface protective sheet has excellent long-term durability, and transmissivity of ultraviolet that reaches the solar cell is retained for a long time. This solar cell module is configured by laminating a front surface protective sheet, a light receiving-side sealing sheet, a solar cell element, a rear surface-side sealing sheet, and a rear surface protective sheet in this order. The solar cell module is characterized in that the light receiving-side sealing sheet has a transmissivity of 50% or more with respect to light having a wavelength of 300 nm, and the rear surface-side sealing sheet contains a reactive ultraviolet absorbent.
Claims4
A solar cell module comprising:
- a surface-protective sheet;
- a light-receiving-side encapsulation sheet;
- a solar cell element;
- a back-side encapsulation sheet;
- and
- a rear protective sheet laminated in the order presented, wherein
- the light-receiving-side encapsulation sheet has 50% or higher transmittance of light having a wavelength of 300 nm, and
- the back-side encapsulation sheet comprises a reaction product of a reactive ultraviolet absorber and a resin component, wherein the resin component is an ethylene-polar monomer copolymer or an ethylene-α-olefin copolymer and the reactive ultraviolet absorber contains a reactive functional group which is an unsaturated group having a carbon-carbon double bond which reacts with a molecular backbone of the ethylene-polar monomer copolymer or the ethylene-α-olefin copolymer of the resin component.
Dependencies are inferred from the claim text.