CN202487609U

CN202487609U - Thin film solar cell

Info

Publication number: CN202487609U
Application number: CN 201120541269
Authority: CN
Inventors: 籍东; 王勇; 符政宽
Original assignee: JIANGSU WUJIN HANNENG PHOTOVOLTAIC CO Ltd
Current assignee: JIANGSU WUJIN HANNENG PHOTOVOLTAIC CO Ltd
Priority date: 2011-12-22
Filing date: 2011-12-22
Publication date: 2012-10-10
Anticipated expiration: 2021-12-22

Abstract

The utility model discloses a thin film solar cell, comprising a lining core, a thin film cell layer and packaging material positioned between the lining core and the thin film cell layer for packaging the thin film cell layer on the lining core. The film cell layer comprises a protection layer, a back electrode layer, an electric layer, a transparent conducting layer and a transparent flexible substrate, which are overlapped from the interior to the exterior. The packaging material is sleeved out of the lining core, and both the packaging material and the lining core possess non-flat stereo structures with consistent shapes. According to the utility model, the thin solar cell layer is packaged on the lining core with a stereo shape, the structure is reasonable, manufacture is convenient, various shapes can be prepared according to the usage requirements of occasions, restriction of material is little, no restriction is caused by cost, equipment or technology, and the application prospect of the thin film solar cell is enhanced.

Description

A kind of thin-film solar cells

Technical field

The utility model relates to area of solar cell, particularly a kind of thin-film solar cells.

Background technology

The energy is the power of human social development, and the exploitation regenerative resource is one of key issue that is related to the national sustainable development strategy.In various regenerative resources, solar photovoltaic technology is a research field with fastest developing speed in the field of solar energy utilization in recent years, the forefront.Advantage becomes the focus of research to thin-film solar cells because few, the low cost of manufacture of consumptive material, pollution be few etc.Present thin-film solar cells can be divided into rigid substrate (like glass) and flexible substrate (like resin) two big classes by substrate.

At present, thin-film solar cells receives the restriction of production equipment and technology, all is the plane basically, in order to obtain installing and using of better light absorption and special occasions, has occurred columniform thin-film solar cells abroad.The manufacturing approach of this cylindrical film solar cell is: direct plated film on the cylindrical substrate of selected good size.Though this process can realize, the defective below existing: 1) since on cylindrical substrate plated film, substrate needs whole process to enter into production line, thereby very high to the requirement of the material of substrate, has increased the substrate cost; 2) owing to the equipment and the existing filming equipment that cylindrical substrate are carried out plated film are incompatible, need specific customization, and very expensive, therefore increased equipment cost; 3) owing to be the production technology of cylindrical substrate and the technology more complicated of plated film above that, so production efficiency is low, rate of finished products is low.

The utility model content

The purpose of the utility model is to solve the defective that aforementioned prior art exists, and a kind of rational in infrastructure, cost is low, rate of finished products is high nonplanar flexible thin-film solar cell is provided.

The technical scheme that realizes the utility model purpose provides structure and fabrication scheme based on two kinds of thin-film solar cells of same design concept.First kind of thin-film solar cells is characterized in that: comprise lining core, hull cell layer and be encapsulated in the encapsulating material that serves as a contrast on the core between lining core and the hull cell layer and with the hull cell layer; Said hull cell layer comprises dorsum electrode layer, electric layer, transparency conducting layer and the transparent flexible substrate that covers setting from the inside to the outside successively; It is outside that said encapsulating material is placed in the lining core, and the two is the stereochemical structure of the consistent non-tablet of shape; Etching straggly respectively has the 3rd insulation tank, second insulation tank and first insulation tank on said dorsum electrode layer, electric layer and the transparency conducting layer.

As preferably, in order to protect dorsum electrode layer, aforementioned thin-film solar cells also comprises the protective layer that is arranged between encapsulating material and the dorsum electrode layer.The end face butt joint of each layer of said hull cell layer forms a seam.Said lining core can be solid or hollow-core construction.

Second kind of thin-film solar cells is characterized in that: comprise lining core, hull cell layer and and between lining core and hull cell layer and with the hull cell layer, be encapsulated in the encapsulating material that serves as a contrast on the core; Said hull cell layer comprises flexible substrate, dorsum electrode layer, electric layer, transparency conducting layer and the transparent protective layer that covers setting from the inside to the outside successively; Said encapsulating material is the stereochemical structure of the consistent non-tablet of shape with the lining core; Etching straggly respectively has first insulation tank, second insulation tank and the 3rd insulation tank on said dorsum electrode layer, electric layer and the transparency conducting layer.The end face butt joint of each layer of said hull cell layer forms a seam.Said lining core can be solid or hollow-core construction.

Aforementioned thin-film solar cells also comprises the transparent protective cover that is positioned at the protective layer outside.The shape of said protective cover is consistent with the lining core.

After having adopted technique scheme, the utlity model has following beneficial technical effects:

(1) the utility model packaging film solar cell layer on the lining core of three-dimensional shape is rational in infrastructure, easy to make, can be made into different shape according to the needs of use occasion, has enlarged the application prospect of thin-film solar cells.

(2) the lining core of the utility model can be solid or hollow structure, and material is not had specific (special) requirements, only needs high temperature resistant the getting final product of ability, can select glass, metal or plastics as required, and scope of selecting material is wide.

(3) manufacture method of the utility model is the thin-film solar cells layer that produces the flexible substrate that can supply cutting earlier; Be cut into suitable dimension as required; Then the flexible solar battery that cuts is encapsulated on the lining core of three-dimensional shape of non-tablet, simple in structure, few to the restriction of material; Can be made into different shape as required; Be particularly suitable for using, do not receive the restriction of cost, equipment and technology, solved cylindrical solar cell and complex manufacturing, the problem that manufacturing cost is high of only making at present in BIPV fields such as building roof, elevation of building, agricultural greenhouses.

Description of drawings

For the content that makes the utility model is expressly understood more easily,, the utility model is done further detailed explanation, wherein below according to specific embodiment and combine accompanying drawing

Fig. 1 is the structural representation of the embodiment 1 of the utility model.

Fig. 2 is the end face structure sketch map of Fig. 1.

Fig. 3 shows is that the step 1 of embodiment 1 forms transparency conducting layer on flexible substrate.

What Fig. 4 showed is step 2 etching insulation tank on transparency conducting layer of embodiment 1.

Fig. 5 shows is that the step 3 of embodiment 1 forms electric layer on transparency conducting layer.

What Fig. 6 showed is step 4 etching insulation tank on electric layer of embodiment 1.

Fig. 7 shows is that the step 5 of embodiment 1 forms dorsum electrode layer on electric layer.

What Fig. 8 showed is step 6 etching insulation tank on dorsum electrode layer of embodiment 1.

Fig. 9 shows is that the step 7 of embodiment 1 forms protective layer on dorsum electrode layer.

Figure 10 shows is that the step 9 of embodiment 1 is encapsulated in the hull cell layer on the lining core.

Figure 11 is the end face structure sketch map of the utility model embodiment 2.

Figure 12 is the end face structure sketch map of the utility model embodiment 3.

Label is in the accompanying drawing:

Protective layer 101, dorsum electrode layer 102, electric layer 103, transparency conducting layer 104, flexible substrate 105, first insulation tank 201, second insulation tank 202, the 3rd insulation tank 203, encapsulating material 301, lining core 401, seam 501, protective cover 601.

Embodiment

(embodiment 1)

See Fig. 1 and Fig. 2; Present embodiment is an embodiment of first kind of scheme of the utility model; What adopt is columniform substrate; What produce is columniform thin-film solar cells, and concrete structure comprises lining core 401, hull cell layer and is being encapsulated in the encapsulating material 301 that serves as a contrast on the core 401 between lining core 401 and the hull cell layer and with the hull cell layer; The hull cell layer comprises protective layer 101, dorsum electrode layer 102, electric layer 103, transparency conducting layer 104 and the transparent flexible substrate 105 that covers setting from the inside to the outside successively; Encapsulating material 301 is placed in lining core 401 outsides, and the two is the cylindrical of shape unanimity; Etching straggly respectively has the 3rd insulation tank 203, second insulation tank 202 and first insulation tank 201 on dorsum electrode layer 102, electric layer 103 and the transparency conducting layer 104.The end face butt joint of each layer of hull cell layer forms a seam 501.

Fig. 3 to Figure 10 has shown that intuitively the columniform thin-film solar cells of making present embodiment may further comprise the steps:

1. see Fig. 3, on the transparent flexible substrate 105 on plane, be coated with transparent transparency conducting layer 104;

2. on transparency conducting layer 104, etch a plurality of first insulation tanks 201, as shown in Figure 4;

3. like Fig. 5, have in etching on the transparency conducting layer 104 of first insulation tank 201 to be coated with electric layer 103;

4. referring to Fig. 6, on electric layer 103, etch a plurality of second insulation tanks 202;

5., etching is coated with dorsum electrode layer 102 on having the electric layer 103 of second insulation tank 202, and as shown in Figure 7;

6. see Fig. 8, on dorsum electrode layer 102, etch a plurality of the 3rd insulation tanks 203;

7. on etching has the dorsum electrode layer 102 of the 3rd insulation tank 203, coat protective layer 101, thereby process hull cell layer as shown in Figure 9;

8. as required size is prepared columniform lining core 401 and columniform encapsulating material 301, and with the 7. the hull cell layer that obtains of step cut out size to needs;

9. see Figure 10, with the 8. the hull cell layer cut out of step be encapsulated into through encapsulating material 301 on the lining core 401 in interior, flexible substrate 105 mode outside according to protective layer 101 and get final product.

In the present embodiment, plated film, etched technology all do not limit, and can select existing various technology according to the consummate degree of configuration of devices and technology.

Embodiment 2

See Figure 11; Present embodiment is an embodiment of second kind of scheme of the utility model; That adopts remains columniform substrate; What produce is columniform thin-film solar cells, comprise lining core 401, hull cell layer and and between lining core 401 and hull cell layer and with the hull cell layer, be encapsulated in the encapsulating material 301 that serves as a contrast on the core 401; The hull cell layer comprises flexible substrate 105, dorsum electrode layer 102, electric layer 103, transparency conducting layer 104 and the protective layer 101 that covers setting from the inside to the outside successively; Encapsulating material is the stereochemical structure of the consistent non-tablet of shape with lining core 401; Etching straggly respectively has first insulation tank 201, second insulation tank 202 and the 3rd insulation tank 203 on dorsum electrode layer 102, electric layer 103 and the transparency conducting layer 104.The end face butt joint of each layer of hull cell layer forms a seam 501.

Manufacturing step is:

1. be coated with transparent dorsum electrode layer 102 on the flexible substrate 105 on plane;

2. on dorsum electrode layer 102, etch a plurality of first insulation tanks 201;

3., etching is coated with electric layer 103 on having the dorsum electrode layer 102 of first insulation tank 201;

4. on electric layer 103, etch a plurality of second insulation tanks 202;

5., etching is coated with transparency conducting layer 104 on having the electric layer 103 of second insulation tank 202;

6. on transparency conducting layer 104, etch a plurality of the 3rd insulation tanks 203;

7., etching coats protective layer 101 on having the transparency conducting layer 104 of the 3rd insulation tank 203,, thus the hull cell layer processed;

9. with the 8. the hull cell layer cut out of step be encapsulated into through encapsulating material 301 on the lining core 401 in interior, protective layer 101 mode outside according to flexible substrate 105.

Can find out; The difference of the manufacture method of present embodiment and embodiment 1 is that mainly the hull cell layer covers the mode on the lining core, and flexible substrate is positioned at the outside among the embodiment 1, need be material transparent therefore; And flexible substrate is positioned at inside in the present embodiment, so do not need transparent.

Embodiment 3

See Figure 14; Present embodiment is another embodiment of second kind of scheme of the utility model; On the basis of embodiment 2, also comprise the transparent protective cover 601 that is positioned at protective layer 101 outsides, the shape of protective cover 601 can be consistent with lining core 401, can obtain better translucent effect like this.

Above-described specific embodiment; Purpose, technical scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.

Claims

1. a thin-film solar cells is characterized in that: comprise lining core (401), hull cell layer and be positioned between lining core (401) and the hull cell layer and with the hull cell layer being encapsulated in the encapsulating material (301) on the lining core (401); Said hull cell layer comprises dorsum electrode layer (102), electric layer (103), transparency conducting layer (104) and the transparent flexible substrate (105) that covers setting from the inside to the outside successively; Said encapsulating material (301) is placed in lining core (401) outside, and the two is the stereochemical structure of the consistent non-tablet of shape; Etching straggly respectively has the 3rd insulation tank (203), second insulation tank (202) and first insulation tank (201) on said dorsum electrode layer (102), electric layer (103) and the transparency conducting layer (104).

2. a kind of thin-film solar cells according to claim 1 is characterized in that: also comprise the protective layer (101) that is arranged between encapsulating material (301) and the dorsum electrode layer (102).

3. a kind of thin-film solar cells according to claim 1 and 2 is characterized in that: the end face butt joint of each layer of said hull cell layer forms a seam (501).

4. a thin-film solar cells is characterized in that: comprise lining core (401), hull cell layer and be positioned between lining core (401) and the hull cell layer and with the hull cell layer being encapsulated in the encapsulating material (301) on the lining core (401); Said hull cell layer comprises flexible substrate (105), dorsum electrode layer (102), electric layer (103), transparency conducting layer (104) and the transparent protective layer (101) that covers setting from the inside to the outside successively; Said encapsulating material is the stereochemical structure of the consistent non-tablet of shape with lining core (401); Etching straggly respectively has first insulation tank (201), second insulation tank (202) and the 3rd insulation tank (203) on said dorsum electrode layer (102), electric layer (103) and the transparency conducting layer (104).

5. a kind of thin-film solar cells according to claim 4 is characterized in that: the end face butt joint of each layer of said hull cell layer forms a seam (501).

6. according to claim 4 or 5 described a kind of thin-film solar cells, it is characterized in that: also comprise being positioned at the outside transparent protective cover (601) of protective layer (101).

7. a kind of thin-film solar cells according to claim 6 is characterized in that: the shape of said protective cover (601) is consistent with lining core (401).