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 secondary grid line has a width in a welding position with the conductive wire greater than a width thereof in a non-welding position.
Abstract:
The disclosure discloses a photovoltaic cell, a photovoltaic cell array, a solar cell, and a method for preparing a photovoltaic cell. The photovoltaic cell includes: a silicon wafer, a gate line layer, a side electrode, a first electrode, a back electrical layer, and a second electrode. The silicon wafer includes a silicon substrate, a front diffusion layer, a side division layer, and a back division layer. At least a part of at least one of the side division layer and the back division layer is a diffusion layer whose type is the same as that of the front diffusion layer. The gate line layer is disposed on the front diffusion layer. The side electrode is disposed on the side division layer and is electrically connected to the gate line layer. The first electrode is disposed on the back division layer and is electrically connected to the side electrode. The back electrical layer and the second electrode are both disposed on a back surface of the silicon wafer. The back electrical layer is electrically connected to the second electrode and is not in contact with the first electrode.
Abstract:
The disclosure discloses a photovoltaic cell assembly, a photovoltaic cell array, and a solar cell assembly. The photovoltaic cell assembly includes: a plurality of photovoltaic cells arranged sequentially along a longitudinal direction, and at least one conductive band, where each photovoltaic cell includes a silicon wafer, a front conductive member disposed on a front surface of the silicon wafer, two electrodes disposed on a back surface of the silicon wafer, and a side conductive member that is disposed on a side surface of the silicon wafer and that is electrically connected between the front conductive member and one electrode, where the two electrodes extend along a transverse direction and are distributed at an interval in the longitudinal direction; and the conductive band has an extension direction the same as that of the electrode, and is electrically connected to two electrodes that are close to each other and that are respectively located on two neighboring photovoltaic cells, so that the two neighboring photovoltaic cells are connected in series or connected in parallel.
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.