Abstract:
A solar cell module comprises an upper glass plate, a front adhesive layer, a solar cell array, a back adhesive layer and a back plate superposed in sequence. The solar cell array comprises a plurality of cells, adjacent cells connected by a metal wire. At least one metal wire extends reciprocally between a surface of a first cell and a surface of a second cell adjacent to the first cell to form at least two conductive wires. The cells comprise secondary grid lines disposed on front surfaces thereof. The conductive wires are being welded with the secondary grid lines. At least one of the front adhesive layer and the back adhesive layer has a thickness of larger than or equal to the metal wire in a direction perpendicular to the cell, and smaller than 400 μm.
Abstract:
A solar cell array comprises a plurality of cells, adjacent cells connected by a metal wire. At least one metal wire extends reciprocally between a surface of a first cell and a surface of a second cell adjacent to the first cell to form a plurality of conductive wires. The number of the conductive wires is n, y−y×20%≦n≦y+y×20%, in which n is an integer and y=4.0533X−1.28/1562*A*B, in which X is a diameter value of the metal wire with mm as a unit, 0.1≦X≦0.5, A and B representing length and width of the cell with mm as the unit. The cells comprise secondary grid lines disposed on front surfaces thereof. The conductive wires are welded with the secondary grid lines by a welding layer.
Abstract:
A solar cell unit comprises a cell. The cell includes a cell substrate and a plurality of secondary grid lines disposed on a front surface of the cell substrate. The secondary grid lines comprises an edge secondary grid line adjacent to an edge of the cell substrate and a middle secondary grid line disposed inside of the edge secondary grid line. The secondary grid line comprises a welding portion. At least one welding portion of the edge secondary grid line has a projection area in the cell substrate larger than a welding portion of the middle secondary grid line. The solar cell unit also comprises a plurality of conductive wires spaced apart from each other and welded with the secondary grid lines in the welding portion.
Abstract:
A solar cell array comprises a plurality of solar cells and a metal wire disposed on adjacent solar cells. The metal wire extends between a surface of a first cell and a surface of a second cell adjacent to the first cell in a serpentine pattern of at least two passes on each cell. The solar cell array also comprises a plurality of secondary grid lines disposed on front surfaces of each cell and welded with the at least two passes.
Abstract:
A solar cell module, comprising an upper cover plate, a front adhesive layer, a cell, a back adhesive layer and a back plate superposed in sequence, a secondary grid line being disposed on the cell, a conductive wire comprising a metal wire being disposed between the front adhesive layer and a front surface of the cell, a welding layer disposed on a welding position where the conductive wire and the secondary grid line are welded, the welding layer being an alloy containing Sn, Bi and at least one of Cu, In, Ag, Sb, Pb and Zn, in which an amount of Bi is 15 to 60 weight percent.
Abstract:
A solar cell unit comprises a cell. The cell includes a cell substrate and a plurality of secondary grid lines disposed on a front surface of the cell substrate. The secondary grid lines comprises an edge secondary grid line adjacent to an edge of the cell substrate and a middle secondary grid line disposed inside of the edge secondary grid line. The at least one edge secondary grid line has a width greater than the middle secondary grid line. The solar cell unit also comprises a plurality of conductive wires spaced apart from each other. The plurality of conductive wires intersects and is connected with the secondary grid lines.
Abstract:
A solar cell module comprises an upper cover plate, a front adhesive layer, a cell array, a back adhesive layer and a back plate superposed in sequence, the cell array comprising multiple cells, adjacent cells connected by a plurality of conductive wires, at least two conductive wires comprising the metal wire which extends reciprocally between surfaces of adjacent cells, the conductive wires being in contact with the cells, the front adhesive layer in direct contact with the conductive wires and filling between adjacent conductive wires.
Abstract:
A solar cell unit comprises a cell. The cell includes a cell substrate and a secondary grid line disposed on a front surface of the cell substrate. The solar cell unit also comprises a conductive wire intersecting and welded with the secondary grid line. The solar cell unit further comprises a welding portion disposed in a welding position of the secondary grid line with the conductive wire. The welding portion has a projection area larger than that of the secondary grid line with an equal length to the welding portion in a non-welding position.
Abstract:
A solar cell unit comprises a cell. The cell includes a cell substrate and a plurality of secondary grid lines disposed on a front surface of the cell substrate. The secondary grid lines comprises an edge secondary grid line adjacent to an edge of the cell substrate and a middle secondary grid line disposed inside of the edge secondary grid line. The secondary grid line comprises a welding portion. At least one welding portion of the edge secondary grid line has a projection area in the cell substrate larger than a welding portion of the middle secondary grid line. The solar cell unit also comprises a plurality of conductive wires spaced apart from each other and welded with the secondary grid lines in the welding portion.
Abstract:
In one aspect, a solar cell unit comprises a cell. The cell includes a cell substrate and a plurality of secondary grid lines disposed on a front surface of the cell substrate. The solar cell unit also comprises a plurality of conductive wires spaced apart from each other. The plurality of conductive wires intersects and is connected with the secondary grid lines. At least one secondary grid line has at least one gap located between adjacent conductive wires.