High Performance Backsheet for Photovoltaic Applications and Method for Manufacturing the Same
AssigneeMadico, Inc.
InventorsMarina Temchenko, David W. Avison, Bradley J. Forest
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Abstract
The present invention provides a high performance backsheet (alternatively referred to backing sheet) for photovoltaic applications and methods for manufacture of the same. The high performance backsheet includes a compounded thermoplastic polyolefin or compounded ethylene vinyl acetate (“EVA”). The compounded thermoplastic polyolefin or EVA may be used by itself as one layer, or incorporated into a layer, or as a layer in multilayer laminate. The compounded thermoplastic polyolefin or EVA is useful in eliminating the necessity of using polyester in the backing sheet.
Claims17
A flexible backing sheet for a photovoltaic module, the backing sheet comprising:
- a weatherable outer layer comprising a polyolefin;
- an inner layer comprising a polyolefin;
- and
- at least one mid-layer comprising a polyolefin, the mid-layer having a different composition from the inner layer and adhering the outer layer to the inner layer.
A backing sheet for a photovoltaic module comprising solar cells, the backing sheet comprising:
- an inner layer being closest to the solar cells and comprising a compounded polyolefin;
- an outer layer comprising a compounded polyolefin;
- and
- a mid-layer being adjacent to the outer layer and the inner layer, the mid-layer comprising a compounded polyolefin.
A photovoltaic module comprising:
- photovoltaic cells;
- and
- a backing sheet comprising an outer layer, an inner layer and a mid-layer adhered to both the outer layer and the inner layer, the outer layer comprising a polyolefin, the mid-layer comprising a polyolefin and the inner layer comprising a polyolefin.
Dependencies are inferred from the claim text.