CROSS-LINKABLE IONOMERIC ENCAPSULANTS FOR PHOTOVOLTAIC CELLS
- 申请公布号:
- US2012024348(A1)
- 申请号:
- US20100847293
- 申请日期:
- 2010.07.30
- 申请公布日期:
- 2012.02.02
- 申请人:
- PREJEAN GEORGE WYATT;BENNETT ALISON MARGARET ANNE;E.I. DU PONT DE NEMOURS AND COMPANY
- 发明人:
- PREJEAN GEORGE WYATT;BENNETT ALISON MARGARET ANNE
- 分类号:
- H01L31/048;B32B3/10;B32B27/32;C08F124/00;C08L37/00;H01L31/0203
- 主分类号:
- H01L31/048
- 摘要:
- Provided herein is a blend composition useful as a cross-linkable encapsulant layer and consisting essentially of two ethylene copolymers and optionally one or more additives. The first ethylene copolymer comprises copolymerized units of ethylene, optionally a first olefin having the formula CH2═C(R1)CO2R2, and a second olefin having the formula CH2═C(R3)COOH. At least a portion of the carboxylic acid groups have been neutralized to form carboxylate salts. The second ethylene copolymer consists essentially of copolymerized units of ethylene, optionally a first olefin having the formula CH2═C(R1)CO2R2, and a third olefin having the formula CH2═C(R4)D. R1, R3 and R4 represent hydrogen or an alkyl group; R2 represents an alkyl group; and D represents a moiety containing an epoxy group. Further provided are solar cell modules comprising the encapsulant layer. The encapsulant layer comprises the blend composition or the product of cross-linking the blend composition, in which some carboxylate groups of the second olefin have reacted with some epoxy groups of the third olefin.
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