| 摘要 |
A photovoltaic cell element 200 includes a substrate including a front surface 106, a back surface and front surface electrodes over the front surface; the front surface electrodes include a plurality of front surface bus bar electrodes 102 coupled to a plurality of front surface finger electrodes 103; wherein the widths of the front surface bus bar electrodes 102 are between about 0.5 mm and about 2.5 mm; the plurality of front surface bus bar electrodes 102 are substantially parallel to each other and substantially perpendicular to the front surface finger electrodes 103; the widths of the front surface finger electrodes 103 are between about 301 µm and about 100 µm; the front surface electrodes also include first front surface redundancy line electrodes 105 between each two adjacent front surface bus bar electrodes 102; the front surface redundancy line electrodes 105 are substantially parallel to the bus bar electrodes 102 and substantially perpendicular to the front surface finger electrodes 103 to couple to the front surface finger electrodes 103; the widths of the first front surface redundancy line electrodes 104 are between about 30 µm and about 500 µm. Also disclosed is a photovoltaic module comprising a plurality of the above photovoltaic cells 200 interconnected by connection members. The bus-bar electrodes 102 of one photovoltaic cell element may be connected to a rear-face electrode of the next photovoltaic cell element in the module. |
