Solar Cell Coat Wiring Structure for Durable Power Extraction
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Solution Overview
Problem
Existing electronic devices with solar cells face durability issues due to prone structures for power extraction, leading to breakage and disconnection, which complicates the reliable and efficient transfer of generated power.
Innovation Solution
The implementation of a solar panel structure with a laminate film having extraction wirings on its surface, electrically connected to the electrodes, allowing for flexible and secure power output without obstructing light incidence, thus enhancing durability and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional take-out wirings are used to connect solar cell electrodes, then power can be extracted from the solar cell, but the structure is prone to breakage and disconnection, reducing reliability
Solution Approach 1:
The patent merges the extraction wiring structure with the solar cell itself by forming the extraction wirings directly on the solar cell substrate. This integration eliminates separate connection structures that are prone to breakage and disconnection, thereby improving reliability while reducing overall device complexity.
Solution Approach 2:
The solar cell substrate serves multiple functions: it acts as both the power generation element and the substrate for the extraction wirings. This multi-functionality reduces the need for separate structural components, improving reliability by eliminating weak connection points between separate parts.
2Reliability
If extraction wirings are placed on the solar cell surface, then power can be extracted, but light incidence may be obstructed, reducing power generation efficiency
Solution Approach 1:
The extraction wirings are positioned in specific local areas of the solar cell surface where they minimize obstruction to light incidence. By optimizing the location and arrangement of wirings in less critical light-receiving zones, the patent maintains power generation efficiency while achieving reliable power extraction.
Solution Approach 2:
The extraction wirings are implemented as thin conductive patterns on the solar cell surface, minimizing their thickness and profile. This allows light to pass through or around them with minimal obstruction, maintaining power generation efficiency while providing durable wiring integration.
3Reliability
If complex wiring structures are used to ensure reliable power extraction, then durability improves, but manufacturing complexity and cost increase
Solution Approach 1:
The extraction wirings are formed as an integrated part of the solar cell manufacturing process, combining multiple functions into a single structure. This reduces the number of separate manufacturing steps and components, simplifying production while ensuring reliable power extraction through the integrated design.
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
This solution enables simpler, more flexible, and reliable power output from solar cells, reducing the risk of power generation interference and improving the durability of electronic devices like electronic timepieces by securely connecting solar cells to circuit boards without complex wiring.
Implementation Method 1
Electronic devices including solar cells can store power generated by the solar cells
Data Source
AI summary
Disclosed is an electronic device including: a solar cell including a power generation layer and a pair of electrodes that sandwich the power generation layer; and a coat that has a second face attached to at least part of a first face of the solar cell. The coat includes extraction wirings that are located on the second face and electrically connected to the electrodes.