JP2010123556A - Substrate (case) for dye-sensitized solar cell - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a substrate (a case) not only improving long-period safety by easily, simply and stably forming a dye-sensitized solar cell but also enabled to easily enlarge an area. <P>SOLUTION: The substrate (a case) is provided with concavo-convex protrusions, dents, steps or the like for jointing, sealing and electrodes on a substrate of a dye-sensitized solar cell beforehand, and molded so as to be in a sealing state by separating between an inner space and an outer part when they are interposed and jointed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  For substrates (hereinafter referred to as “substrates”) for dye-sensitized solar cells (including solar cells of crystalline and non-crystalline silicon, compound semiconductors and organic semiconductors) by synthetic resin materials, rubber materials, fiber materials or metal materials or a composite thereof. Dye sensitization formed by providing uneven projections, depressions, steps, gaps or holes for bonding, sealing, and electrodes, and sealing the internal space when they are overlapped and bonded The present invention relates to a substrate (housing) for a solar cell.

  Porous titanium oxide, dye, electrolyte, etc. as a rubbery gel material with a polymer absorber by the “dye-sensitized solar cell and its manufacturing method” filed on June 23, this year by the applicant of the present invention There is a dye-sensitized solar cell to be molded, but there is no optimal substrate (housing) for it.

  Currently, as a substrate of a dye-sensitized solar cell, a glass substrate of Document 1, a glass substrate for a transparent electrode of Document 2, a plastic substrate of Document 3, a metal cell container substrate of Document 4, and the like have been proposed. None of these are solution-type and have not been put to practical use.

  On the other hand, there are many joining methods for joints and joints such as pillars and beams, which are the traditional wooden construction technology in Japan, and they are always perfectly joined together with a pair of concave and convex protrusions and depressions. Therefore, it is an optimal and practical joining method that always combines rigidity and flexibility.

Reference 1

Japanese Patent Application No. 2007-60511

Reference 2

Japanese Patent Application No. 2008-81677

Reference 3

Japanese Patent Application No. 2002-333519

Reference 4

Japanese Patent Application No. 2006-194257

  As described above, the dye-sensitized solar cell for which the applicant of the present invention applied for a patent on June 23, this year is completely different in nature and shape from the previous one, so the optimal substrate (housing) is It is also an essential requirement for practical use.

  Current dye-sensitized solar cell substrates (casings) are simply made of glass or plastic materials, or electrodes are attached to them, or leak-preventing devices are added. There is nothing easy, convenient and stable.

  In addition, there is no practical substrate (housing) that can be manufactured easily and in large quantities, and the same applies to solar cells such as silicon that have more flexibility.

  Furthermore, in order to put these substrates (housings) into practical use, they must have areas and shapes that are suitable for interior and exterior parts of buildings and daylighting parts. It is.

  In response to the above-mentioned problems, uneven projections, depressions or steps for bonding, sealing, and electrodes are provided on the substrate in advance, and the internal space is blocked from the outside when the substrates are overlapped and bonded. Provided is a substrate (housing) for a dye-sensitized solar cell molded so as to be sealed.

  First, a convex portion or a step is provided on the inner peripheral portion of one substrate, and a concave portion or a step is provided on the inner peripheral portion of the other substrate so that it can be joined with the convex portion. Molding with sufficient consideration for the shape of the space.

  Next, gaps, holes, ports or the like for electrodes, sealing or electrodes are provided on these substrates. As a result, a basic substrate (housing) for a dye-sensitized solar cell that can easily and simply and stably maintain the internal space in a sealed state is formed.

  However, when a rubber-like gel material or the like is used in the space, the thickness may be several millimeters, which may cause uneven bulges in the substrate (housing).

  In that case, uneven projections and depressions provided on the inner periphery of the substrate are arranged uniformly in the form of dots or lines on the entire inner side of the substrate including the internal space, or the interior is made uniform. An air extraction hole or the like is provided to improve the space in a vacuum or a state close thereto.

  On the other hand, by joining or molding (packaging) a part of the overlapped portion of the substrate (housing) in advance at the manufacturing stage, etc., as a result, simplification of sealing and joining work and improvement of the sealed state can be achieved. It is done.

  Since the present invention is mainly for a dye-sensitized solar cell for which the applicant of the present invention previously applied for a patent, it can be molded easily, simply and stably, and its efficiency can be improved. Evaporation prevention and long-term stability are also improved.

  In addition, in a dye-sensitized solar cell using a conventional solution, not only can it be molded easily and simply, but also its efficiency is improved, and the leakage and evaporation of the dye solution and electrolyte solution and long-term stability are improved.

  Further, not only the same advantages can be obtained with a flexible solar cell such as silicon, but also the efficiency of the manufacturing process including the solar cell can be simplified, and the cost can be reduced.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the present invention is not limited to these.

  In FIG. 1, uneven projections 3 are provided in advance on the inner peripheral portions of the substrates 1 and 2, and an internal space 4 is provided so as to be joined, but the internal space 4 is sealed off from the outside. Mold to be in a state.

  The substrates 1 and 2 are provided with gaps 5 for sealing and bonding. For example, the substrates 1 and 2 themselves may be used as electrodes.

  FIG. 2 is a diagram in which the bottom surface 6 of the central portion of the substrate 2 in FIG. 1 is raised, and FIGS. 3 to 5 are diagrams in which changes are made to the joint portion when the substrates 1 and 2 are overlapped.

  FIG. 6 shows an easy and simple operation for sealing the internal space 4 by joining (packaging) a part of the overlapped portion of the substrates 1 and 2 of the substrate (housing) in advance at the manufacturing stage. is there.

  FIG. 7 shows the case where the substrates 1 and 2 are preliminarily attached so that they can be easily and simply joined as a large area by using a single substrate or a plurality of substrates (cases) or as an appropriate fitting fit at the time of winding around a pillar or the like. It is formed with a long end.

  In FIG. 8, for example, a connecting hole 7 is provided in advance in a substrate (housing), and when they are abutted, a connecting metal fitting (made of plastic) 8 is used for the hole 7 to increase the area.

  FIG. 9 shows uneven projections and the like that are evenly provided in the interior space 4 in the form of dots because uneven swelling may occur when the substrate (housing) has a large area.

  Sectional drawing of one Example which concerns on this invention   Sectional drawing of one Example which concerns on this invention   Sectional drawing of one Example which concerns on this invention   Sectional drawing of one Example which concerns on this invention   Sectional drawing of one Example which concerns on this invention   Sectional drawing of one Example which concerns on this invention   Sectional drawing of one Example which concerns on this invention   Sectional drawing of one Example which concerns on this invention   Sectional drawing of one Example which concerns on this invention

Explanation of symbols

1 Substrate (for upper part)
2 Substrate (for lower part)
3 Protrusions, etc. 4 Internal space 5 Sealing and bonding material gaps, etc. 6 Center bottom surface 7 Connection hole 8 Connection fitting (made of plastic)

Claims (5)

  Bonding and sealing to substrates for dye-sensitized solar cells (including crystalline and non-crystalline silicon, compound semiconductor and organic semiconductor solar cells) by synthetic resin materials, rubber materials, fiber materials, metal materials or their composites Dye characterized by providing projections and depressions, depressions, steps, gaps or holes for use and electrodes, and molded so that the internal space is sealed when the substrates are stacked and joined A substrate (housing) for sensitized solar cells.   2. The pigment according to claim 1, wherein the uneven projections and the like are provided so as to be arranged as dots or lines on the entire substrate including the internal space. A substrate (housing) for sensitized solar cells.   3. The substrate (housing) according to claim 1 or 2, wherein an air extraction hole, a gap, or an opening is provided for making the internal space in a vacuum state or a state close thereto. A substrate (housing) for a dye-sensitized solar cell.   5. The substrate (housing) according to claim 1, wherein a part of the overlapping and joining parts is joined or molded in advance, thereby simplifying the sealing and joining work and sealing the internal space. The substrate (housing) for a dye-sensitized solar cell according to claim 1, 2 or 3, wherein the state is improved.   Using a single substrate or a plurality of substrates (casings) of the above claims, laminating, joining to have a large area in a plane, joining to form a three-dimensional shaped object (for example, a spherical body), 6. The pigment according to claim 1, wherein the edge of the substrate is processed for bonding so that it can be attached to a column surface, an interior / exterior portion of a building or a structure, and a daylighting portion. Sensitized solar cell substrate (housing).

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