KR101707476B1 - Sealing structure for dye-sensitized solar cell - Google Patents

Sealing structure for dye-sensitized solar cell Download PDF

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Publication number
KR101707476B1
KR101707476B1 KR1020130038555A KR20130038555A KR101707476B1 KR 101707476 B1 KR101707476 B1 KR 101707476B1 KR 1020130038555 A KR1020130038555 A KR 1020130038555A KR 20130038555 A KR20130038555 A KR 20130038555A KR 101707476 B1 KR101707476 B1 KR 101707476B1
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South Korea
Prior art keywords
transparent substrate
electrolyte injection
injection hole
electrolyte
absorbing pad
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KR1020130038555A
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Korean (ko)
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KR20140122323A (en
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황재권
김대운
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주식회사 오리온
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/542—Dye sensitized solar cells

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Hybrid Cells (AREA)
  • Photovoltaic Devices (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)

Abstract

The present invention relates to a sealing structure of a dye-sensitized solar cell capable of stably sealing an electrolyte injection hole and protecting the solar cell module from external physical impact, and more particularly, to a sealing structure of a dye- An electrolyte injection hole sealing material sealing the electrolyte injection hole, and an electrolyte injection hole sealing material sealing the electrolyte injection hole. The electrolyte injection hole is formed on the upper transparent substrate, the electrolyte injection hole formed on the upper transparent substrate, A shock absorbing pad provided on the impact absorbing pad to prevent the electrolyte from leaking through the electrolyte injection hole and absorb external physical impact, and a pad provided on the shock absorbing pad to fix the shock absorbing pad, A frame that serves to maintain the coupled state of the transparent substrate and the lower transparent substrate Characterized in that obtained by box.

Description

[0001] The present invention relates to a dye-sensitized solar cell,

The present invention relates to a sealing structure of a dye-sensitized solar cell, and more particularly, to a sealing structure of a dye-sensitized solar cell capable of protecting a solar cell module from external physical impact while assuring stable sealing of an electrolyte inlet .

Since the development of dye-sensitized nanoparticle titanium dioxide solar cells by Michael Gratzel of the Lausanne Institute of Technology (EPFL) in Switzerland in 1991, much research has been done in this area. A dye-sensitized solar cell is a device that applies the principle of photosynthesis of a plant. It is a case where a dye having a function of absorbing light energy from a chloroplast is combined with a polymer and applied to a solar cell. The dye-sensitized solar cell is based on a dye polymer for solar absorption, a semiconductor oxide serving as an n-type semiconductor, an electrolyte acting as a p-type semiconductor, a counter electrode for a catalyst, and a transparent electrode for solar transmission.

The basic structure of the dye-sensitized solar cell has a sandwich structure of the transparent substrates 110 and 120 as shown in FIG. 1 (Korean Published Unexamined Patent Application No. 1363578). The inside of the cell includes transparent electrodes 111 and 121 coated on a transparent substrate, porous TiO 2 131 made of nanoparticles adhered thereon, a dye polymer 132 coated on the surface of the TiO 2 particle with a monolayer, An electrolyte solution 150 for oxidation / reduction filling a space between the electrodes, and a counter electrode 140 for electrolyte reduction.

In fabricating such a dye-sensitized solar cell, the upper transparent substrate and the lower transparent substrate are bonded together, and the electrolyte solution is injected into a space between the two substrates. The electrolyte injection hole for injecting the electrolyte is formed in the upper And is provided on a transparent substrate. That is, an electrolyte injection hole is formed in the upper transparent substrate, and the electrolyte is injected through the electrolyte injection hole.

When the electrolyte injection is completed, the electrolyte injection hole is finally sealed with an organic polymer material such as epoxy. However, when the injected electrolyte expands or vaporizes in a high-temperature environment, electrolyte leaks through the electrolyte injection hole.

Korean Laid-Open Patent Publication No. 2012-136578

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a sealing structure of a dye-sensitized solar cell capable of securing stable sealing of an electrolyte inlet, There is a purpose.

According to an aspect of the present invention, there is provided a dye-sensitized solar cell comprising: an upper transparent substrate and an upper transparent substrate; an electrolyte injection port formed on the upper transparent substrate; A shock absorbing pad provided around the substrate including the sealed electrolyte injection hole for preventing the electrolyte from leaking through the electrolyte injection hole and absorbing external physical impact; And a frame provided on the impact absorbing pad to fix the shock absorbing pad and to maintain the state of engagement of the upper transparent substrate and the lower transparent substrate.

The shock-absorbing pad is provided on the upper portion of the upper transparent substrate on which the electrolyte injection hole is formed and the side portions of the substrates, and the frame covers the upper portion of the upper transparent substrate, the lower portion of the lower transparent substrate, .

In addition, the sealing structure of the dye-sensitized solar cell according to the present invention comprises a top transparent substrate and a bottom transparent substrate which are bonded and sealed via an encapsulating material, an electrolyte injection port provided in a part of the encapsulation material, A shock absorbing pad provided around the substrate including the electrolyte injection hole sealing material and the sealed electrolyte injection hole to prevent the electrolyte from leaking through the electrolyte injection hole and to absorb external physical impact, And a frame which is provided on the lower transparent substrate and serves to fix the shock absorbing pad and maintain the coupled state of the upper transparent substrate and the lower transparent substrate.

The shock-absorbing pad may be provided on a side surface of the substrates including the sealed electrolyte injection port, and the frame may surround the upper portion of the upper transparent substrate, the lower portion of the lower transparent substrate, and the sides of the substrates.

The sealing structure of the dye-sensitized solar cell according to the present invention has the following effects.

Since the sealing member is provided in the electrolyte injection port and the shock absorbing pad and the frame are sequentially applied, stable sealing of the electrolyte injection port is possible and the solar cell is prevented from being damaged by an external impact.

1 is a cross-sectional view of a conventional dye-sensitized solar cell.
2 is a perspective view of a sealing structure of a dye-sensitized solar cell according to a first embodiment of the present invention.
3 is an exploded perspective view of a sealing structure of a dye-sensitized solar cell according to a first embodiment of the present invention;
4 is a perspective view of a sealing structure of a dye-sensitized solar cell according to a second embodiment of the present invention.
5 is an exploded perspective view of a sealing structure of a dye-sensitized solar cell according to a second embodiment of the present invention.

The present invention discloses a technique for sealing an electrolyte injection port of a dye-sensitized solar cell and preventing a dye-sensitized solar cell from being damaged by an external impact. The electrolyte injection port may be formed on the upper transparent substrate or a part of the sealing material, and the present invention provides a sealing structure for the above two cases.

Hereinafter, the sealing structure of the dye-sensitized solar cell according to the first and second embodiments of the present invention will be described in detail with reference to the drawings. The first embodiment relates to an electrolyte injection port formed on an upper transparent substrate, and the second embodiment relates to an electrolyte injection port formed on a part of the sealing material.

Referring to FIGS. 2 and 3, the sealing structure of the dye-sensitized solar cell according to the first embodiment of the present invention includes an upper transparent substrate 210 and a lower transparent substrate 220 which are bonded together and sealed. The upper transparent substrate 210 and the lower transparent substrate 220 are adhered to each other via an encapsulant 230.

Although not shown, the upper transparent substrate 210 is provided with a transparent conductive film on its front surface, and a light absorbing layer and a grid electrode are formed on the transparent conductive film. A transparent conductive film is provided on the front surface of the lower transparent substrate 220, and a counter electrode and a grid electrode are provided on the transparent conductive film. An electrolyte is provided between the encapsulated upper transparent substrate 210 and the lower transparent substrate 220.

The upper transparent substrate 210 is provided with an electrolyte injection hole 211 vertically penetrating the substrate and a space between the upper transparent substrate 210 and the lower transparent substrate 220 through the electrolyte injection hole 211. [ As shown in FIG. After the upper transparent substrate 210 and the lower transparent substrate 220 are sealed, when the electrolyte injection through the electrolyte injection hole 211 is completed, the electrolyte injection hole 211 is sealed with an organic bonding material such as epoxy.

The present invention shows the structure of the electrolyte injection hole sealing material 241, the impact reducing pad 242, and the frame 243 by complementing the sealing and physical impact of the electrolyte injection hole 211. The electrolyte injection hole sealing material 241 is provided in the electrolyte injection hole 211 in a state where the electrolyte injection is completed and serves to finally seal the electrolyte injection hole 211. The shock absorption pad 242 is sealed with the electrolyte injection hole 211 to prevent the electrolyte expanded in a high temperature environment from leaking through the electrolyte injection hole 211 and to absorb external physical impacts. The frame 243 is provided on the impact relieving pad 242 to fix the impact relieving pad 242 and to fix the joint state of the upper transparent substrate 210 and the lower transparent substrate 220 .

The electrolyte injection hole sealing material 241 may be formed of an organic bonding material such as epoxy or the like. The impact absorbing pad 242 may include an upper portion of the upper transparent substrate 210 on which the electrolyte injection hole 211 is formed, For example, it can be configured as 'A' shape. In addition, the frame 243 may be configured to surround the upper portion of the upper transparent substrate 210, the lower portion of the lower transparent substrate 220, and the side portions of the substrates, for example, a 'C' shape. The shock absorbing pads 242 may be made of a rubber material having a restoring force for shock buffering, and the frame 243 may be made of a metal material or a high-hardness polymer material.

Next, the sealing structure of the dye-sensitized solar cell according to the second embodiment of the present invention will be described.

Referring to FIGS. 4 and 5, the upper transparent substrate 310 and the lower transparent substrate 320 are attached and sealed together as in the first embodiment. The upper transparent substrate 310 and the lower transparent substrate 320 are adhered to each other through an encapsulant 330.

Although not shown, the upper transparent substrate 310 is provided with a transparent conductive film on its front surface, and a light absorbing layer and a grid electrode are provided on the transparent conductive film. Also, a transparent conductive film is provided on the front surface of the lower transparent substrate 320, and a counter electrode and a grid electrode are provided on the transparent conductive film. An electrolyte is provided between the encapsulated upper transparent substrate 310 and the lower transparent substrate 320.

An electrolyte injection hole 331 is provided in a part of the sealing material 330. The inner space of the encapsulant 330 and the outer space of the encapsulant 330 are spatially connected through the electrolyte injection port 331. The electrolyte can be injected into the space between the upper transparent substrate 310 and the lower transparent substrate 320 through the electrolyte injection port 331 of the encapsulant 330. After the upper transparent substrate 310 and the lower transparent substrate 320 are sealed, when the electrolyte injection through the electrolyte injection hole 331 is completed, the electrolyte injection hole 331 is sealed with an organic bonding material such as epoxy.

In the second embodiment of the present invention, the structure of the electrolyte injection hole sealing material 341, the impact-reducing pad 342, and the frame 343 is improved in the same manner as in the first embodiment by complementing the sealing and physical impact of the electrolyte injection port 331. [ .

The electrolyte injection hole sealing material 341 is provided on the side surfaces of the electrolyte injection hole 331 and the substrates in the state where the electrolyte injection is completed and serves to finally seal the electrolyte injection hole 331. The shock absorption pad 342, Is provided on a side surface of the substrate including the sealed electrolyte injection port 331 to prevent the electrolyte expanded in a high temperature environment from leaking through the electrolyte injection port 331 and to absorb external physical impact. The frame 343 is provided on the shock absorbing pad 342 to fix the shock absorbing pad 342 and to fix the coupling state of the upper transparent substrate 310 and the lower transparent substrate 320 .

The frame 343 may be configured to surround the upper portion of the upper transparent substrate 310, the lower portion of the lower transparent substrate 320, and the sides of the substrates, for example, a 'C' shape. The shock absorbing pad 342 may be made of a rubber material having a restoring force for buffering shock, and the frame 343 may be made of a metal material or a high-hardness polymer material.

210: Upper transparent substrate 211: Electrolyte inlet
220: lower transparent substrate 230: sealing material
241: electrolyte injection hole sealing material 242: shock absorption pad
243: Frame

Claims (4)

An upper transparent substrate and a lower transparent substrate which are bonded and sealed via an encapsulating material;
An electrolyte injection port formed on the upper transparent substrate;
An electrolyte injection hole sealing material sealing the electrolyte injection hole;
A shock absorbing pad provided around the substrate including the sealed electrolyte injection hole to prevent the electrolyte from leaking through the electrolyte injection hole and absorb external physical impact; And
And a frame provided on the shock absorbing pad to fix the shock absorbing pad and to maintain a state of coupling the upper transparent substrate and the lower transparent substrate,
The shock-absorbing pad is provided in the form of an upper portion of an upper transparent substrate on which an electrolyte injection hole is formed and a side portion of the substrates, and the frame includes an upper portion of the upper transparent substrate, a lower portion of the lower transparent substrate, Wherein the dye-sensitized solar cell comprises a dye-sensitized solar cell.
An upper transparent substrate and a lower transparent substrate which are bonded and sealed via an encapsulating material;
An electrolyte injection hole provided in a part of the sealing material;
An electrolyte injection hole sealing material sealing the electrolyte injection hole;
A shock absorbing pad provided around the substrate including the sealed electrolyte injection hole to prevent the electrolyte from leaking through the electrolyte injection hole and absorb external physical impact; And
And a frame provided on the shock absorbing pad to fix the shock absorbing pad and to maintain a state of coupling the upper transparent substrate and the lower transparent substrate,
Wherein the shock-absorbing pad is provided on a side surface of the substrates including the sealed electrolyte injection port, and the frame is provided in a shape that covers the upper portion of the upper transparent substrate, the lower portion of the lower transparent substrate, and the sides of the substrates. Type solar cell. delete delete
KR1020130038555A 2013-04-09 2013-04-09 Sealing structure for dye-sensitized solar cell KR101707476B1 (en)

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Application Number Priority Date Filing Date Title
KR1020130038555A KR101707476B1 (en) 2013-04-09 2013-04-09 Sealing structure for dye-sensitized solar cell

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KR101707476B1 true KR101707476B1 (en) 2017-02-16

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KR102599896B1 (en) * 2021-06-16 2023-11-08 고려대학교 산학협력단 Photovoltaic module with shock absorbing structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005015678A1 (en) * 2003-08-06 2005-02-17 Fujikura Ltd. Photoelectric converter and method for manufacturing same
KR101482649B1 (en) * 2008-07-15 2015-01-19 주식회사 동진쎄미켐 Dye sensitized solar cell and module
KR20110001884A (en) * 2009-06-29 2011-01-06 주식회사 동진쎄미켐 Photocurable resin compositon for sealing of optical device
KR20120136578A (en) 2011-06-09 2012-12-20 엘지디스플레이 주식회사 Dye-sensitized solar cells and manufacturing method for thereof

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