Disclosed is a solar cell string, a string group, a module, and a manufacturing method thereof. The solar cell string is formed by connecting a plurality of first type of solar cells and at least one second type of solar cell, wherein front electrodes of the plurality of first type of solar cells (701) have the same polarity, back electrodes of the plurality of first type of solar cells (701) also have the same polarity, and the polarity of the front electrodes of the first type of multiple solar cells (701) is opposite to the polarity of the back electrodes. Back electrodes on a back side of the second type of solar cell (801) comprise a positive electrode and a negative electrode. The solar cell string utilizes two structures of solar cells to establish a stacked connection of shingles, thereby enabling a current carrying unit to direct current out of the back side of the solar cells, making it easier to incorporate a diode, causing no size increase in the module area, reducing the wafer breakage rate, and accordingly raising the module pass rate and assembling efficiency. Further disclosed is a string group formed by the solar cell string, a module, and a manufacturing method thereof.

Provided is a solar cell assembly that includes a plurality of small segments serving as a plurality of solar cells when divided, and has one linear side in plan view, each of the plurality of small segments being defined by a defining line, which is a straight line substantially parallel to the linear one side of the cell assembly, the solar cell assembly including: a photoelectric conversion part having a main surface; a transparent conductive layer disposed on an area of the main surface of the photoelectric conversion part corresponding to each of the plurality of small segments, the transparent conductive layer having a first area and a second area located at a different position from the first area; a collector electrode disposed on the first area of the transparent conductive layer and including a plating layer; and a transparent insulating layer disposed on the second area of the transparent conductive layer, in which the photoelectric conversion part is exposed in a defining area, which is an area formed along the defining line and including the defining line.

A high efficiency configuration for a solar cell module comprises solar cells arranged in an overlapping shingled manner and conductively bonded to each other in their overlapping regions to form super cells, which may be arranged to efficiently use the area of the solar module.

Each of at least three solar cell strings has a first end and a second end in a first direction each including a connector. At the first end and the second end, a wire member is provided to which the connector of the first end of each of at least two solar cell strings out of the at least three solar cell strings and the connector of the second end thereof are connected. A first sheet member is provided to allow the wire member at the first end to be located in a specific positional relationship with the wire member at the second end, and a second sheet member is provided to allow the wire member at the second end to be located in a specific positional relationship with the wire member at the first end.

The finger electrode is formed by hard-soldered silver paste. The melting point of the first type solder layer provided on the surface of the terminal wiring member is higher than the melting point of the second type solder layer provided on the surface of the wire. The first width, in the first direction, of the second type solder layer in the first portion where the wire is connected to the terminal wiring member is larger than the second width, in the first direction, of the second type solder layer in the second portion where the wire is connected to the finger electrode.

A photovoltaic converter for electric power generating panels includes a plurality of photovoltaic modules (5), each comprising a substrate (14), extending along a main direction (D) from a first end to a second end, and a plurality of photovoltaic devices (15), arranged on the substrate (14) in succession along the main direction (D). The photovoltaic converter further includes at least a bridge module (10, 11) insertion-connecting a respective upstream photovoltaic module (5) and a respective downstream photovoltaic module (5).

Provided is a solar cell and a photovoltaic module. The solar cell includes a semiconductor substrate and an electrode arranged on the semiconductor substrate. The electrode includes a plurality of fingers arranged in parallel to and spaced apart from each other. Each finger includes a transport electrode line and a plurality of electrical connection electrode lines in contact with the transport electrode line. In a thickness direction of the semiconductor substrate, a plurality of fingers on a light receiving surface of the semiconductor substrate are staggered with a plurality of fingers on a backlight surface of the semiconductor substrate.

There is provided a two-terminal device, including a substrate comprising a first cell having a first characteristic resistance, and a second cell, spaced apart from the first cell along the web direction of the substrate, having a second characteristic resistance; a first terminal and a second terminal, each terminal being formed towards or at opposing edges of the substrate across the transverse direction, and each terminal being in electrical communication with the first cell and the second cell; and a connecting portion, between the first cell and the second cell, the connecting portion having a third characteristic resistance; wherein the third characteristic resistance is greater than or equal to at least one of the first characteristic resistance and the second characteristic resistance. There is also provided a method of forming such a two-terminal device).

A solar cell module includes: two solar cells adjacent to each other in a direction parallel to a light-receiving surface; a tab line which is disposed on a front surface of one of the two solar cells and a back surface of the other of the two solar cells, and electrically connects the two solar cells; and bonding members which bond the tab line to the two solar cells, wherein bonding strength between the tab line and at least one of the two solar cells in an edge area on a side electrically connected with the other of the two solar cells by the tab line is lower than bonding strength between the tab line and the at least one of the two solar cells in a central area.

A solar power generation system includes: solar cells, or solar cells and at least one capacitor, connected in series between output terminals; an accompanying circuit provided for each of the solar cells, or each of the solar cells and each of the at least one capacitor, the accompanying circuit including an inductor and a switching device arranged in series; and a power generation operating point control device. The solar cells, or the solar cells and the at least one capacitor, are divided into units, of which adjacent units share one of the solar cells or one of the at least one capacitor. The power generation operating point control device is provided for each of the units, and is configured to control connection and disconnection of the switching device so as to optimize power generating capacity of the unit for which the power generation operating point control device is provided.