Patent ID: 9698291
Date: 2017-07-04
CPC Classifications: H01L,Y02E

Claim:
1. A solar cell panel comprising: a plurality of solar cells, each solar cell including a semiconductor substrate, a front electrode part including a plurality of front electrode current collectors and positioned on a front surface of the semiconductor substrate, and a back electrode part including a plurality of back electrode current collectors and positioned on a back surface of the semiconductor substrate; an interconnector configured to electrically connect respective front and back electrode parts of adjacent ones of the plurality of solar cells to one another, the interconnector including a conductive metal and a solder coated on an upper surface and a lower surface of the conductive metal; and conductive adhesive layers respectively including a resin and a plurality of conductive particles dispersed in the resin, the conductive adhesive layers being disposed between the respective front and back electrode parts and the interconnector to electrically connect the respective front and back electrode parts to the interconnector, wherein the resin of the conductive adhesive layers is formed of a material having a melting temperature lower than a material of the solder, wherein the plurality of front electrode current collectors and the interconnector are attached to each other using a front conductive adhesive layer of the conductive adhesive layers, wherein the plurality of back electrode current collectors and the interconnector are attached to each other using a back conductive adhesive layer of the conductive adhesive layers, wherein each of an upper surface of the solder coated on the upper surface of the conductive metal attached to the front conductive adhesive layer and an upper surface of the solder coated on the upper surface of the conductive metal attached to the back conductive adhesive layer has a plurality of uneven portions, and wherein the plurality of uneven portions of the upper surface of the solder coated on the upper surface of the conductive metal attached to the front conductive adhesive layer and the plurality of uneven portions of the upper surface of the solder coated on the upper surface of the conductive metal attached to the back conductive adhesive layer have the same shape as each other.