METHOD FOR ELECTRICALLY CONNECTING SEVERAL SOLAR CELLS AND PHOTOVOLTAIC MODULE
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United States of America Patent
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Issued Date -
Aug 21, 2014
app pub date -
Jun 13, 2012
filing date -
Jun 14, 2011
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Abandoned
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Abstract
The invention relates to a method for metallizing and connecting solar cell substrates and to a photovoltaic module made of several metallized solar cells that are electrically connected to one another. According to the invention, a solar cell substrate, in which second metal layers forming electrical metal contacts are optionally provided, is attached to a carrier substrate, on the surface of which at least one first metal layer is formed in a suitable pattern. By localized irradiation of the metal layer with laser radiation through the solar cell substrate or the carrier substrate, energy is introduced such that the metal layer is heated by absorbed laser radiation for an irreversible bonding to the adjacent surface of the solar cell substrate. By the laser bonding of the metal layer on the carrier substrate to the solar cell substrate, solar cells can be connected to form a photovoltaic module.
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