Hanwha Q Cells Gmbh

Marcel Kühne

Michael Mette

Christian Gerbig

A backsheet stack for a photovoltaic module is disclosed. The photovoltaic module includes a laminate with embedded solar cells. The backsheet stack includes: an outer protective layer, an inner adhesion layer, at least one barrier layer, and at least one reinforcing layer. The outer protective layer is configured to provide protection from ultra-violet radiation. The inner adhesion layer is configured to provide adhesion to a laminate with embedded solar cells. The at least one barrier layer is formed between the outer protective layer and the inner adhesion layer and forms a sealing layer to moisture penetration. The at least one reinforcement layer is formed between the outer protective layer and the inner adhesion layer and provides mechanical stability for the backsheet stack.

Backsheet stack for a photovoltaic module, and a method for the production thereof

A solar module having at least two substring groups, each including an upper substring having solar cells connected in series and arranged in a matrix having two adjacent columns and a plurality of rows, and a lower substring having solar cells connected in series and arranged in a matrix having two adjacent columns and a plurality of rows. The lower and upper substrings include the same number of solar cells. A cross-connector interconnects the lower and upper substrings electrically in parallel forming the substring group. A bypass diode is arranged electrically in the cross-connector, and cross-connectors of each substring group are interconnected electrically in series. Two columns of the lower substring include a different number of solar cells and two columns of the upper substring include a different number of solar cells, such that the number of solar cells of the upper substring and of the lower substring is odd.

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Bitterfeld-Wolfen, Germany

Marcel Kühne