Solar Cell Module with Segmented Connector for Flexibility
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Solution Overview
Problem
Traditional solar cell modules are prone to cracking and breaking under external or temperature-related stresses due to their lack of flexibility, resulting in power loss and reduced practical application potential.
Innovation Solution
A solar cell module design featuring cell cutting pieces connected by a flexible connector with alternating connecting and disconnecting areas, allowing for a buffer space that enhances flexibility and stress absorption, reducing the risk of cracking and breaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If cell cutting pieces are connected with solder paste to form a high-density assembly, then power loss is reduced, but the solar cell module becomes poor in flexibility and prone to cracking
Solution Approach 1:
The connector's surface is segmented into alternating connecting areas and disconnecting areas. This segmentation allows the solar cell module to have both rigid connection points (for electrical connectivity) and flexible buffer zones (for stress absorption), resolving the contradiction between power loss reduction and flexibility maintenance.
Solution Approach 2:
Different areas of the connector serve different functions: connecting areas provide rigid electrical connections while disconnecting areas provide flexible buffer zones. This local differentiation of properties allows the module to simultaneously achieve low power loss and high flexibility/cracking resistance.
2Ease of manufacture
If a traditional rigid solar cell module structure is used, then manufacturing is simple, but the module is prone to breaking under external load or temperature impact
Solution Approach 1:
The connector design introduces dynamic flexibility through the buffer area formed by overlapping projections of disconnecting areas. This allows the module structure to adapt dynamically to external stresses and temperature changes while maintaining manufacturing simplicity through the straightforward alternating area pattern.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The enhanced flexibility of the solar cell module enables it to withstand various stresses, minimizing the risk of cracking and breaking, thus improving its practical application and efficiency.
Implementation Method 1
The solar cell may absorb the solar energy, and hetero charges may accumulate at both ends of the cell, that is, a 'photovoltaic voltage' may be created. This is known as 'photovoltaic effect'. In the photovoltaic effect, an electromotive force may be generated between the ends of the cell.
Data Source
AI summary
A solar cell module and a method for manufacturing the same are disclosed. The solar cell module includes a plurality of cell cutting pieces stacked and connected in series, and a connector adapted to connect two adjacent cell cutting pieces in series, the plurality of cell cutting pieces being cut from a solar cell, each cell cutting piece including a front electrode and a back electrode, wherein the connector includes a first surface adapted to connect the front electrode and a second surface adapted to connect the back electrode, the first surface is provided with alternating first connecting areas and first disconnecting areas, the second surface is provided with alternating second connecting areas and second disconnecting areas, and projections of the first disconnecting areas on the first surface overlap with projections of the second connecting areas on the first surface, and wherein the front electrode is adapted to connect the first connecting areas, and the back electrode is adapted to connect the second connecting areas. The solar cell module has improved flexibility, in which grid lines and cells are not easy to be broken.