Photoelectric Conversion Module Electrode Connection Design
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Solution Overview
Problem
The existing dye-sensitized solar cell modules face difficulties in maintenance due to the challenge of disconnecting and reconnecting the working electrode from the counter electrode once they are connected via a conductive adhesive, making modifications or replacements cumbersome.
Innovation Solution
A photoelectric conversion element module design where the electrodes are arranged in a planar shape with the conductive member connected to the surface of one electrode opposite to the other, allowing for easy modification and replacement without interference from the first electrode, and using a conductive member like a wire or adhesive that can be detached from terminals to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conductive adhesive is disposed between the working electrode and the counter electrode to connect them, then the electrical connection between photoelectric conversion elements is achieved, but the difficulty in detaching and re-connecting the electrodes for maintenance increases
Solution Approach 1:
The conductive member is segmented into a first conductive portion connected to the working electrode and a second conductive portion connected to the counter electrode, with an insulating layer separating them in the overlapping region. This segmentation allows the conductive connections to be made at different locations, enabling easy detachment and reconnection of electrodes for maintenance while preserving reliable electrical connections.
Solution Approach 2:
An insulating layer is introduced as an intermediary between the first conductive portion and the second conductive portion in the overlapping region. This insulating layer prevents short circuits while allowing the conductive members to extend beyond the electrode edges, facilitating easy maintenance and reconnection without compromising electrical reliability.
2Ease of operation
If the conductive member connects the working electrode and counter electrode directly, then the connection is simple, but the risk of short circuit and electrode damage increases
Solution Approach 1:
The conductive member is divided into separate first and second conductive portions connected to different electrodes, with an insulating layer between them in the overlapping region. This segmentation maintains simple connection procedures while preventing short circuits by electrically isolating the two conductive portions where they overlap.
Solution Approach 2:
The insulating layer acts as a mediator between the first and second conductive portions, preventing direct electrical contact and thus avoiding short circuits. This allows the conductive members to be简单地 connected while eliminating the harmful short circuit risk.
3Area of stationary object
If the electrodes are arranged in a planar shape with extension portions, then the connection area is increased, but the complexity of avoiding overlap during connection increases
Solution Approach 1:
The conductive members extend from the plane of the electrodes into the overlapping region, utilizing the third dimension (depth/height) to resolve the connection arrangement. The first conductive portion extends from the working electrode and the second from the counter electrode, meeting in the overlapping region but separated by the insulating layer, thus increasing connection area without adding planar complexity.
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 configuration enables easy maintenance and prevents short circuits by allowing connections to be modified or replaced from a single direction, reducing the risk of damage to the electrodes and ensuring efficient operation.
Implementation Method 1
when the photo-sensitized dye absorbs incident light, such as sun light or the like, electrons are generated and injected into oxide semiconductor fine particles
Implementation Method 2
a conductive member electrically connecting the photoelectric conversion elements to each other
Data Source
AI summary
A photoelectric conversion element module 200 includes a plurality of photoelectric conversion elements 100 and 100, each including a first electrode 10 and a second electrode 20 facing each other, and a conductive member 9 electrically connecting the photoelectric conversion elements 100 to each other. Each of the photoelectric conversion elements 100 is arranged in a planar shape so that a direction from each first electrode 10 to each second electrode 20 is the same. The conductive member 9 is connected to a surface of the first electrode 10 which is opposite to the second electrode 20 in at least one photoelectric conversion element 100 and is connected to a surface of the second electrode 20 which is facing the first electrode 10 in at least one different photoelectric conversion element 100, at a position at which the second electrode 20 does not overlap the first electrode 10.