Method for Manufacturing and Series Connection of Photovoltaic Elements to a Solar Module and Solar Module

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The patent describes a new method for manufacturing and connecting photovoltaic (solar cell) elements in series to form a solar module. The technique involves depositing multiple layers (contacts and semiconductors) on a substrate, forming structured trenches (stair-step grooves) between the elements with lasers, applying and selectively removing insulating material, and then connecting adjacent cells with conductive material. This process minimizes short-circuits and allows faster, less precise, and potentially automated manufacturing compared to prior methods.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacturing of thin-film solar panels for residential, commercial, or industrial applications
• Large-scale automated production of solar modules with improved throughput
• Production of flexible or lightweight solar modules using substrates like plastic or metal foils
• Integration of solar modules into building materials or portable devices where scalable, reliable series connection of cells is needed
• Development of high-efficiency multi-cell solar panels by reducing interconnection losses

BenefitsContent extracted from patent full text and abstract with AI.

• Enables faster and more efficient manufacturing of solar modules due to reduced alignment and precision requirements
• Minimizes electrical short-circuits between adjacent solar cells, improving reliability and yield
• Allows for flexible and scalable series interconnection designs (striped, dotted, or area patterns), fitting various module designs
• Supports automation via inkjet printing and laser ablation, enabling high-throughput production lines
• Reduces material usage and increases the active area available for electricity generation, boosting overall module efficiency
• Can use a wide range of substrates and is compatible with different solar cell technologies (e.g., amorphous silicon, microcrystalline structures)

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Patent Abstract

The invention relates to a method for the production and series connection of photovoltaic elements to give a solar module and to a solar module.