PHOTOVOLTAIC MODULE AND METHOD FOR MANUFACTURING SAME
A photovoltaic module ( 10 ) is provided with: photovoltaic elements ( 14 ), each of which has a light receiving surface-side electrode and a back surface-side electrode ( 26 ); and a connection member which is connected to the photovoltaic elements ( 14 ) with resin-containing adhesive layers ( 50, 52 ) respectively interposed therebetween. The width of the connection member facing the back surface-side electrode ( 26 ) is narrower than the width of the back surface-side electrode ( 26 ). The connection member has recesses and projections ( 40 ) on the surface facing the back surface-side electrode ( 26 ), and connects one photovoltaic element and another photovoltaic element ( 14 ) with each other, said photovoltaic elements being arranged adjacent to each other. The back surface-side electrode ( 26 ) is an electrode that covers generally all over the back surface of the photovoltaic element ( 14 ).
1 . A photovoltaic module comprising:
a photovoltaic element having a light receiving surface-side electrode and a back surface-side electrode; and
a connection member connected to the back surface-side electrode, wherein
in the connection member, a width of a portion opposing the back surface-side electrode is narrower than a width of the back surface-side electrode, and the connection member has unevenness formed on a surface opposing the back surface-side electrode.
2 . The photovoltaic module according to claim 1 , further comprising:
an adhesive layer between the connection member and the back surface-side electrode, wherein
the adhesive layer includes a resin.
3 . The photovoltaic module according to claim 1 , wherein
the back surface-side electrode covers approximately an entirety of a back surface of the photovoltaic element.
4 . The photovoltaic module according to claim 3 , wherein
the back surface-side electrode is a reflective layer.
5 . The photovoltaic module according to claim 1 , further comprising:
another connection member connected to the light receiving surface-side electrode of the photovoltaic element, wherein
a width of a portion of the connection member opposing the back surface-side electrode is wider than a width of the other connection member opposing the light receiving surface-side electrode.
6 . The photovoltaic module according to claim 5 , further comprising:
another adhesive layer between the other connection member and the back surface-side electrode, wherein
the other adhesive layer includes a resin.
7 . The photovoltaic module according to claim 1 , wherein
the back surface-side electrode has an uneven structure on a surface opposing the connection member, and
a height of the unevenness of the connection member is higher than an unevenness height of the unevenness of the back surface-side electrode.
8 . A method of manufacturing a photovoltaic module, comprising:
a connection step to connect to aback surface-side electrode of a photovoltaic element, wherein
the connection step comprises:
a step of preparing the connection member having unevenness on at least one surface thereof;
a step of placing the connection member on the back surface-side electrode with an adhesive therebetween and with the unevenness oriented toward the back surface-side electrode, and
a step of pressure-contacting the connection member and the back surface-side electrode while flow-discharging the adhesive from a region between a projection of the unevenness and the back surface-side electrode.