Solar cell module, manufacturing method thereof, and photovoltaic module

A method for manufacturing a solar cell module, comprising:

• providing a substrate and forming a plurality of conductive layers that are separated from each other on a surface of the substrate;
• forming a plurality of solar sub-cells on a surface of the conductive layer, and forming a plurality of grooves between adjacent solar sub-cells of the plurality of solar sub-cells, wherein each of the solar sub-cells comprises a hole transport layer, a perovskite layer and an electron transport layer that are stacked on the surface of the conductive layer;
• forming a plurality of branch electrodes that are separated from each other in the hole transport layer of each of the solar sub-cells so that the branch electrodes contact with an interior of the conductive layer;
• and
• forming an electrode passing through the electron transport layer and the perovskite layer and connecting the electrode to the plurality of branch electrodes,
• wherein the manufactured solar cell module comprises:
• a substrate;
• and
• a plurality of conductive layers arranged on a surface of the substrate and separated from each other by an interval;
• wherein a plurality of solar sub-cells is provided on a surface of the conductive layer, and a plurality of grooves is provided between adjacent solar sub-cells of the plurality of solar sub-cells to separate the plurality of solar sub-cells from each other;
• each of the plurality of solar sub-cells comprises a hole transport layer, a perovskite layer and an electron transport layer that are stacked on the surface of the conductive layer;
• the hole transport layer of each of the plurality of solar sub-cells comprises a plurality of branch electrodes separated from each other, and each of the plurality of branch electrodes contacts an interior of the conductive layer;
• and
• the solar cell module further comprises an electrode, wherein the electrode successively passes through the electron transport layer and the perovskite layer and is connected to the plurality of branch electrodes;
• wherein a height of the branch electrode is set to H, a height of the hole transport layer is set to h1, a height of the conductive layer is set to h2, and the height H of the branch electrode, the height h1 of the hole transport layer and the height h2 of the conductive layer satisfy the following condition:
• h1<H<h1+h2×(10%-60%).

A photovoltaic module, comprising a cover plate, a capsulation material layer and at least one solar cell string, wherein the at least one solar cell string comprises at least one solar cell module, and the solar cell module comprises:

• a substrate;
• and
• a plurality of conductive layers arranged on a surface of the substrate and separated from each other by an interval;
• wherein a plurality of solar sub-cells is provided on a surface of the conductive layer, and a plurality of grooves is provided between adjacent solar sub-cells of the plurality of solar sub-cells to separate the plurality of solar sub-cells from each other;
• each of the plurality of solar sub-cells comprises a hole transport layer, a perovskite layer and an electron transport layer that are stacked on the surface of the conductive layer;
• the hole transport layer of each of the plurality of solar sub-cells comprises a plurality of branch electrodes separated from each other, and each of the plurality of branch electrodes contacts an interior of the conductive layer;
• and
• the solar cell module further comprises an electrode, wherein the electrode successively passes through the electron transport layer and the perovskite layer and is connected to the plurality of branch electrodes;
• wherein a height of the branch electrode is set to H, a height of the hole transport layer is set to h1, a height of the conductive layer is set to h2, and the height H of the branch electrode, the height h1 of the hole transport layer and the height h2 of the conductive layer satisfy the following condition:
• h1<H<h1+h2×(10%-60%).