KR20120129269A - Watch Using Dye-Sensitized Solar Cell with adjacent anode and cathode electrode - Google Patents

Abstract

PURPOSE: A watch using a dye induction solar battery module which is adjacent to a positive electrode terminal and a negative electrode terminal is provided to insert a watch controlling unit with a connector into a power output terminal formed in the central unit of the dye induction solar battery module, thereby easily assembling the watch. CONSTITUTION: Positive electrodes of unit batteries and an electrode connecting unit of a negative electrode are arranged in all directions. A positive electrode terminal(216) and a negative electrode terminal(226) of a dye induction solar battery module are adjacent. An electrode terminal hole is equipped in a positive substrate or a negative substrate of a location which the positive electrode terminal and the negative electrode terminal are formed. The electrode terminal hole connects an electrode terminal to an outside. A power output terminal of the dye induction solar battery module is connected to a storage battery and a connector of a watch controlling unit. [Reference numerals] (400) Power supply; (AA) Light

Description

Watch using Dye-Sensitized Solar Cell with adjacent anode and cathode electrode}

The present invention relates to a clock, and more particularly, a dye in which a positive electrode terminal and a negative electrode terminal, which do not require external wiring, are disposed adjacent to each other in order to store power generated in a solar cell module in which a positive electrode terminal and a negative electrode terminal are formed adjacent to a capacitor. It relates to a clock using a sensitive solar cell module.

Dye-Sensitized Solar Cell (DSSC) is a solar cell developed by Michael Gratzel of the Swiss Federal Institute of Technology.It has lower manufacturing cost and energy efficiency compared to the existing silicon solar cell. It is high and can be manufactured to be transparent and bendable cell has the advantage that can be used in various applications.

Dye-sensitized solar cells serve as catalysts for photoelectrodes containing dye molecules for generating electron-hole pairs and semiconductor layers for transferring electrons, electrolytes for supplementing electrons with dye molecules, and redox reactions of electrolyte solutions. Made of a counter electrode coated with a platinum layer. When light is incident on the dye-sensitized solar cell, the dye that absorbs the light enters an excited state to send electrons to the conduction band of the semiconductor layer, and the transferred electrons flow along the electrode to an external circuit to transfer electrical energy. As it transfers electrical energy, it becomes a low energy state and moves to the counter electrode. The dye is supplied with electrons from the electrolyte solution as much as the number of electrons transferred to the semiconductor layer and returned to its original state. The electrolyte used serves to receive electrons from the counter electrode by a redox reaction and transfer them to the dye.

The photoelectrode serving as a negative electrode of a battery includes a semiconductor layer such as titanium dioxide (TiO ₂ ), and a dye that absorbs light in the visible region and generates electron-hole pairs is adsorbed on the surface. Electrolyte supplying electrons to dye is I ^- / I ₃ ^- consists of a reduced species, I ^- - oxidation as a source of ions LiI, NaI, alkyl ammonium iodine, imidazolium iodine, etc. are used, I ₃ ^- ions to produce an I ₂ melt in a solvent. The counter electrode is made of platinum or the like and serves as a catalyst for the ion redox reaction to provide electrons to ions in the electrolyte through a redox reaction on the surface.

Dye-sensitized solar cells are fabricated by electrically connecting the smallest units, called unit cells, and packaging them to make modules, and combining these modules to make arrays. This is because the unit cell alone can not produce sufficient current and voltage for use in a home or industrial field. There are various methods of manufacturing a module by connecting unit cells, such as a Z-serial module, a monolithic-serial module, and a W-serial module. .

Figure 1a shows a planar structure of the Z-type dye-sensitized solar cell module. 1A, a Z-type module 100 has a transparent cathode electrode 123 coated on a cathode substrate 120, and a semiconductor layer 121 formed on a transparent cathode electrode 123. Each unit cell is connected in series by an electrode connector 122, and protective layers 124 are formed on both sides of the electrode connector 122 to prevent oxidation by an electrolyte. The protective layer 124 is disposed between the positive electrode substrate 110 and the negative electrode substrate 120 to simultaneously seal the electrolyte filled in each unit cell. FIG. 1B is a cross-sectional view taken along the line A-A 'in FIG. 1A (modified etching position). Referring to FIG. 1B, unit cells separated by a protective layer 124 are formed in a space between the negative electrode substrate 120 and the positive electrode substrate 110. A transparent negative electrode 123 is formed on the negative electrode substrate 120. A transparent negative electrode etch unit 123a is periodically formed to electrically separate each unit cell electrode. The semiconductor layer 121 is formed on the transparent negative electrode 123, and the transparent positive electrode 111 and the platinum layer 112 are sequentially stacked on the positive electrode substrate 110, and the electrolyte 125 is filled therebetween. . A transparent positive electrode etching portion 111a for electrical separation is formed in the middle of the transparent positive electrode 111 as well. The transparent positive electrode 111 and the transparent negative electrode 123 of the neighboring unit cell are connected by an electrode connection part 122, and protective layers 124 are formed on both sides of the electrode connection part 122, and the amount of modules At the end, the positive electrode terminal 116 and the negative electrode terminal 126 are formed on the positive electrode substrate 110 and the negative electrode substrate 120, respectively.

Such a Z-type dye-sensitized solar cell module has a positive electrode terminal and a negative electrode terminal formed at ends of different directions, such that the structure of a connector connecting the terminals such as a battery or the like must be complicated or the power line must be extended for a long time. There is a problem in use.

The present invention has been made to solve the above-described problems, an object of the present invention is to provide a positive electrode terminal and the positive electrode terminal that does not require external wiring to accumulate the power produced in the solar cell module adjacent to the negative electrode terminal and the capacitor A negative electrode terminal is provided to provide a clock using a dye-sensitized solar cell module formed adjacent.

In order to solve the above problems, a clock using a dye-sensitized solar cell module formed by adjoining a positive electrode terminal and a negative electrode terminal of an embodiment of the present invention is a clock control unit for driving the clock by receiving power generated from the dye-sensitized solar cell module In the clock including, the dye-sensitized solar cell module is disposed in the electrode connection portion of the positive electrode and the negative electrode of the unit cells radially, the positive electrode terminal and the negative electrode terminal of the dye-sensitized solar cell module is formed adjacent, the positive electrode terminal and the negative electrode terminal The positive electrode substrate or the negative electrode substrate at the position is formed is characterized in that the electrode terminal hole for connecting the electrode terminal to the outside.

According to one embodiment of the present invention, the negative electrode is composed of a transparent negative electrode, a grid electrode and a semiconductor layer, the grid electrode is characterized in that an arc based on the radial center point.

According to an aspect of an embodiment of the present invention, the power output terminal of the dye-sensitized solar cell module is connected to a storage battery and a connector of a clock control unit.

According to the present invention as described above, since the positive electrode terminal and the negative electrode terminal of the dye-sensitized solar cell module are formed adjacent to each other, forming an electrode terminal hole in the positive or negative substrate, and the output terminal into the inside of the module to form a positive electrode or negative electrode The power output terminal can be pulled out from the center of the board.

In addition, by connecting the power output terminal formed in the center of the dye-sensitized solar cell module and the battery of the clock control unit electrically using a connector, there is no need for an external wiring to supply power generated from the dye-sensitized solar cell module to the storage battery. have.

Therefore, it is possible to assemble the clock by simply inserting an independent clock control unit having a connector and inserting it into a power output terminal formed at the center of the dye-sensitized solar cell module.

1A and 1B illustrate a Z-type dye-sensitized solar cell module.
2a to 2c show the structure and flow of electrons of the dye-sensitized solar cell module according to an embodiment of the present invention.
3 illustrates a structure of a dye-sensitized solar cell module to which a grid electrode is applied according to an embodiment of the present invention.
4 is a block diagram of a clock using a dye-sensitized solar cell module formed adjacent to the positive electrode terminal and the negative electrode terminal according to an embodiment of the present invention.
5 is a front view of a central portion of a dye-sensitized solar cell module in which a positive electrode terminal and a negative electrode terminal are adjacent to each other according to an embodiment of the present invention.
6 is a cross-sectional view of a central portion of a dye-sensitized solar cell module in which a positive electrode terminal and a negative electrode terminal are adjacent to each other according to an embodiment of the present invention.
7 is a schematic diagram illustrating a structure in which a power output terminal, a clock control unit, and a battery are connected to each other according to an embodiment of the present invention.

The following detailed description is only illustrative, and merely illustrates embodiments of the present invention. In addition, the principles and concepts of the present invention are provided for the purpose of explanation and most useful.

Accordingly, various forms that can be implemented by those of ordinary skill in the art, as well as not intended to provide a detailed structure beyond the basic understanding of the present invention through the drawings.

First, the configuration and operation of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings for the dye-sensitized solar cell module in which the positive electrode terminal and the negative electrode terminal are adjacent to each other.

Figure 2a shows a planar structure of a dye-sensitized solar cell module according to an embodiment of the present invention.

Figure 2a shows a planar structure of a dye-sensitized solar cell module according to an embodiment of the present invention. Referring to FIG. 2A, the dye-sensitized solar cell module 200 of the present invention is formed by bonding the opposite positive electrode substrate 210 and the negative electrode substrate 220 together. In the negative electrode substrate 220, a transparent negative electrode 223 patterned in a fan shape and a semiconductor layer 221 coated on the transparent negative electrode are stacked to form a single unit cell, and the unit cells have electrode connections 222 at neighboring boundaries. Are connected in series. In each unit cell, a protective layer 224 is formed to prevent oxidation of the electrode connection part 222. The positive electrode substrate 210 is bonded to the negative electrode substrate 220. The bonding of the negative electrode substrate and the positive electrode substrate may be performed by the protective layer 224. The electrode connecting portion 222 may connect the positive electrode and the negative electrode of the neighboring unit cell to form a dye-sensitized solar cell module connected in series. In the drawings, the illustration of the electrolyte injection hole for the electrolyte injection is omitted. The positive electrode terminal 216 and the negative electrode terminal 226 are terminals for outputting electricity generated by the module to the outside, and according to an embodiment of the present invention, the positive electrode terminal 216 and the negative electrode terminal 226 are adjacent to the outside of the module. It can be formed in the part. The formation of the positive and negative electrode terminals adjacent to each other makes it advantageous to pull the output terminals out of the module. That is, in the conventional Z-type module, since the positive electrode terminal and the negative electrode terminal are formed in opposite directions, it is difficult to connect the wires at one part to connect the terminal to an external storage battery, etc., but in the dye-sensitized solar cell module of the present invention, the positive electrode terminal Since the negative electrode terminals are formed adjacent to each other, the external wires can be neatly processed by connecting a connector.

FIG. 2B is a cross-sectional view taken along line BB ′ of FIG. 2A.

Referring to FIG. 2B, a transparent negative electrode 223 is formed on the negative electrode substrate 220, and a transparent negative electrode etching portion 223a is formed in the middle of the transparent negative electrode 223. The transparent negative electrode is made of a material having both transparent properties and electrical conductivity in order to transmit electrons and simultaneously introduce light into a unit cell. The transparent negative electrode may be made of a metal oxide such as indium tin oxide (ITO) or fluorine-doped tin oxide (FTO). It is confirmed that a semiconductor oxide particle such as titanium dioxide (TiO ₂ ) is coated on the transparent negative electrode 233 to form a semiconductor layer 221, and that a dye (not shown) is not shown in the drawing on the surface of the semiconductor oxide particle. It is listed as an official). A cathode substrate 210 is coupled to the anode substrate 220. An indium tin oxide (ITO) or a fluorine-doped tin oxide (FTO) is formed on a lower surface of the cathode substrate 210. The same transparent positive electrode 211 is formed, and a platinum layer 212 is formed on the lower surface of the transparent positive electrode 211. The electrolyte 225 is filled in the space between the platinum layer 212 and the semiconductor layer 221. The electrolyte may be a solution containing iodine ions or an electrolyte of a conductive polymer or gel type. The positive electrode of the positive electrode substrate 210 and the negative electrode of the negative electrode substrate 220 are connected to each other by the electrode connection part 222, and the positive electrode and the negative electrode of neighboring unit cells separated by the transparent electrode etching parts 223a and 211a are mutually Are connected in series. The electrode connection part 222 may be formed on the same layer as the positive electrode terminal 216 and the negative electrode terminal 226 of FIG. 2A, and may be formed of a silver (Ag) pattern formed by using a screen printing method. The periphery of the electrode connection portion 222 is coated on the protective layer 224 to prevent the oxidation by the electrolyte occurs. The protective layer may be made of surlyn, epoxy resin, glass frit, or the like.

FIG. 2C shows the flow of electrons in the section BB ′ of FIG. 2A.

Referring to FIG. 2C, a dotted line with an arrow indicates the flow of electrons. Electrons are generated in the semiconductor layer and move through the unit cells while moving through the transparent negative electrode, the electrode connection unit, and the transparent positive electrode. The positive electrode terminal 216 and the negative electrode terminal 226 are power output terminals of a module composed of unit cells connected in series, respectively, and are terminals in which electrons are introduced and discharged. Thus, since the positive electrode terminal and the negative electrode terminal are formed adjacent in the space of the dye-sensitized solar cell module of the present invention, it is convenient to connect external conductors for supplying power to the storage battery.

In the above description, the Z-type module has been described as an example, but this is merely an embodiment of the present invention. The dye-sensitized solar cell module of the present invention is characterized in that the electrode connection portions of the positive electrode and the negative electrode of the unit cells are radially disposed, and the positive electrode terminal and the negative electrode terminal of the dye-sensitized solar cell module are formed adjacent to each other. If applicable, it can be widely applied to all modules including a series connection between unit cells, such as a W-type module, a monolithic-type module, and the like.

3 illustrates a planar structure of a dye-sensitized solar cell module to which a grid electrode is applied according to an embodiment of the present invention.

Referring to FIG. 3, the configuration of the other parts is the same as that of FIG. 2A, except that the grid electrodes 227a and 227b are connected to the electrode connection part, and the semiconductor layer is also patterned into two parts. Since the grid electrodes 227a and 227b may also be formed of the same Ag material as the electrode connection portion, the grid electrode 227a and 227b may be protected by a protective layer to prevent oxidation by exposure to the electrolyte. In the drawings, the protective layer is omitted in order to clarify the formation position of the grid electrode. The grid electrodes 227a and 227b function to improve the fill factor value by lowering the shunt resistance of the electrode to facilitate the movement of electrons, and consequently to improve the light conversion efficiency of the solar cell. You can. Indium tin oxide or fluorine-containing tin oxide, which is generally used as a material of a transparent negative electrode, has a relatively higher electrical resistance than metals. Thus, a grid electrode is used for the purpose of reducing the resistance of the negative electrode as a whole.

4 is a block diagram of a clock using a dye-sensitized solar cell module formed adjacent to the positive electrode terminal and the negative electrode terminal according to an embodiment of the present invention.

Referring to FIG. 4, in the watch using the dye-sensitized solar cell module of the present invention, a dye-sensitized watch hand 300, a hole through which a central axis of the watch hand penetrates, and a power output terminal 260 are formed in the center of the watch hand 300. The solar cell module 200 includes a clock control unit 400 including a storage battery 410 that receives power from the dye-sensitized solar cell module 200 and accumulates electricity, and a driving unit 420 for driving the hour hand. Hereinafter, an embodiment for simply supplying the power generated from the dye-sensitized solar cell module having the power output terminal formed in the center to the storage battery 410 of the clock control unit 400 will be described in detail.

5 is a front view of a central portion of a dye-sensitized solar cell module in which a positive electrode terminal and a negative electrode terminal are adjacent to each other according to an embodiment of the present invention. The positive electrode terminal 216 and the negative electrode terminal 226 (hereinafter referred to as the “power output terminal”) formed adjacent to the center portion of the dye-sensitized solar cell module may be formed together on the positive electrode substrate or the negative electrode substrate, either of which is a positive electrode substrate. And a negative electrode substrate.

Referring to FIG. 5 as an embodiment of the present invention, the central portion of the dye-sensitized solar cell module, to which the positive electrode substrate is adhered under the negative electrode substrate, is formed by varying diameters in the positive electrode substrate and the negative electrode substrate, through-holes for passage of the hour hand. Can be. That is, the first through hole 219 having a diameter a in the negative electrode substrate on which the semiconductor layer to which light is irradiated from the outside is formed, and the second through hole having a diameter b larger than the diameter of the first through hole in the positive electrode substrate. The holes 218 may be formed, and the power output terminals 216 and 226 may be formed on the negative electrode substrate. This is for the convenience of supplying power to the battery in draining the power output terminal to the outside (battery control unit battery). Detailed description thereof will be described with reference to FIG. 6.

6 is a cross-sectional view of a central portion of a dye-sensitized solar cell module in which a positive electrode terminal and a negative electrode terminal are adjacent to each other according to an embodiment of the present invention.

Referring to FIG. 6, the central portion of the dye-sensitized solar cell module has a first through hole and a second through hole having different diameters (a, b), and the power output terminals 216 and 226 are connected to the negative electrode substrate 220. Can be formed. That is, since the power output terminal is pulled out to the lower portion of the negative electrode substrate through which light enters, it is convenient to electrically connect the battery 410 of the clock control unit 400 under the positive electrode substrate 210.

7 is a schematic diagram illustrating a structure in which a power output terminal, a clock control unit, and a battery are connected to each other according to an embodiment of the present invention.

Referring to FIG. 7, the power output terminals 216 and 226 of the dye-sensitized solar cell module may be connected to the storage battery 410 and the connector 500 of the clock control unit 400. That is, the power output terminals 216 and 226 of the fuel-sensitized solar cell module may have a connector 500 that may be connected to the power terminal 431 of the storage battery 410 under the positive electrode substrate so as to supply power to the outside in a straight line. . In this case, the connector 500 may be formed in various forms to supply the power produced by the dye-sensitized solar cell module to the outside. That is, the power output terminals 216 and 226 are connected to the connector 500 at the center portion, and the clock control unit 400 includes a power terminal 431 and is inserted into the connector 500 to easily store the battery without additional electrical wiring. 410 may be powered.

The present invention has been described in detail with reference to exemplary embodiments, but those skilled in the art to which the present invention pertains can make various modifications without departing from the scope of the present invention. Will understand.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

200: dye-sensitized solar cell module 210: positive electrode substrate
211: transparent positive electrode 211a: transparent negative electrode etching portion
212: platinum layer 216: positive electrode terminal
219: electrode terminal hole
220: negative electrode substrate 221: semiconductor layer
222: electrode connection 223: transparent negative electrode
223a: transparent negative electrode etching portion 224: protective layer
225: electrolyte 226: negative electrode terminal
227a 227b: Grid Electrodes
300: clock hand 400: clock control unit
410: storage battery 420: driving part
431 power terminal 500 connector

Claims (3)

In the watch comprising a watch control unit for driving the watch by receiving the power generated from the dye-sensitized solar cell module,
The dye-sensitized solar cell module
The electrode connection part of the positive electrode and the negative electrode of the unit cells is radially disposed, and the positive electrode terminal and the negative electrode terminal of the dye-sensitized solar cell module are formed adjacent to each other, and the electrode terminal is disposed on the positive electrode substrate or the negative electrode substrate where the positive electrode terminal and the negative electrode terminal are formed. Clock using a dye-sensitized solar cell module formed adjacent to the positive electrode terminal and the negative electrode terminal, characterized in that the electrode terminal hole for connecting to the outside.
The method of claim 1,
The negative electrode is composed of a transparent negative electrode, a grid electrode and a semiconductor layer, the grid electrode is a clock using a dye-sensitized solar cell module formed adjacent to the positive electrode terminal and the negative electrode terminal, characterized in that forming an arc based on the radial center point.
The method of claim 1,
The power output terminal of the dye-sensitized solar cell module is a clock using a dye-sensitized solar cell module formed adjacent to the positive electrode terminal and the negative electrode terminal, characterized in that connected to the storage battery and the connector of the clock control unit.

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