CN206401339U - Crystal silicon solar energy battery - Google Patents
Crystal silicon solar energy battery Download PDFInfo
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- CN206401339U CN206401339U CN201621373391.2U CN201621373391U CN206401339U CN 206401339 U CN206401339 U CN 206401339U CN 201621373391 U CN201621373391 U CN 201621373391U CN 206401339 U CN206401339 U CN 206401339U
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- silicon solar
- crystal silicon
- energy battery
- solar energy
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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
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Abstract
The utility model provides a kind of crystal silicon solar energy battery, it includes metal foil (1), the first conductive adhesive layer (2), crystal silicon solar cell sheet (3) and at least one welding (5) set on the crystal silicon solar cell sheet (3) stacked gradually, wherein the welding (5) is combined by the second conductive adhesive layer (4) and the crystal silicon solar cell sheet (3).Had and generated output basically identical before bending process after bending process according to the crystal silicon solar energy battery obtained by the technical solution of the utility model, i.e. crystal silicon solar energy battery has good cracking resistance, with the flexible characteristic similar to thin-film solar cells.
Description
Technical field
The utility model is related to a kind of crystal silicon solar energy battery.
Background technology
With economy growing continuously and fast in recent decades, problem of environmental pollution increasingly causes the attention of people.Especially
It is haze pollution, and the pollution that conventional electric power method of supplying is caused is key factor therein.Greatly develop clean energy resource replacement
Traditional energy is extremely urgent.Solar energy is so that its influence to environment is small, the convenient advantage of operation maintenance and occupied in new energy
Critical role.
Leading solar battery technology is accounted in the market for crystalline silicon.And the development of thin-film solar cells phase always
Slow to comparing, its main cause is the difference above cost.But hull cell has the advantage of its exclusive regarding crystal silicon,
Responded including being easy to flexibility component, dim light is made.Especially flexibility the characteristics of, lightweight packages can be mitigated, so as to drop
Low system installation cost.Thin-film solar cells is greatly used in portable set.
One important development direction of solar battery technology is by crystal silicon solar energy battery and thin-film solar cells
Technical advantage be combined.
Utility model content
One of the purpose of this utility model is to provide a kind of crystal silicon solar energy battery, has and bending after bending process
The basically identical generated output of before processing, i.e. crystal silicon solar energy battery have good cracking resistance, so that crystalline silicon is too
Positive energy battery has the flexible characteristic similar to thin-film solar cells.
Technically crystal silicon solar energy battery and two kinds of technologies of thin-film solar cells, thin-film solar cells are compared in face
Flexibility characteristic be to be determined by its material mechanical performance and electrode structure.Change the electrode structure of crystal silicon solar energy battery
The flexibility of crystal silicon solar energy battery can be partly realized, causes crystal silicon solar energy battery by bending place in other words
Preferable generating efficiency can be still kept after reason.When there are some small units in crystal silicon solar energy battery case crushing,
Crystal silicon solar energy battery positive and negative electrode can connect the electrode of each unit, photo-generated carrier be collected, so that brilliant
Body silicon solar cell has the characteristic of part cracking resistance piece.The back side of crystal silicon solar energy battery can use conducting resinl to bring reality
Now comprehensive electricity conducting.And the front electrode of battery has the requirement of transparency, ITO can be used to be permitted as electrode or use
Many main gate lines replace 4 main gate lines of existing market main flow.For the front of crystal silicon solar energy battery, only battery
The area that is surrounded not less than main gate line and the thin grid line of battery of sliver degree can be achieved with electricity conducting so that crystalline silicon
Solar cell portions separately win to obtain cracking resistance.
Based on above content, the utility model provides a kind of crystal silicon solar energy battery, the crystal silicon solar electricity
Metal foil (1) that pond includes stacking gradually, the first conductive adhesive layer (2), crystal silicon solar cell sheet (3) and in the crystal
At least one welding (5) set on silicon solar cell (3), wherein the welding (5) by the second conductive adhesive layer (4) with
The crystal silicon solar cell sheet (3) combines.
With prior art crystal silicon solar energy battery compared with thin-film solar cells, according to technology of the present utility model
Crystal silicon solar energy battery obtained by scheme has basically identical generated output compared with before bending after bending process, i.e.,
Crystal silicon solar energy battery has good cracking resistance so that crystal silicon solar energy battery of the prior art have with it is thin
The similar flexible characteristic of film solar cell.
Brief description of the drawings
, below will be to making needed for embodiment description in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing is briefly described, it should be apparent that, accompanying drawing below shows more of the present utility model with being merely exemplary
Embodiment, on the premise of not paying creative work, can also be attached according to these for one of ordinary skill in the art
Figure obtains other accompanying drawings.Moreover, it is any limitation made to the utility model that these accompanying drawings, which also should not be understood,.
Fig. 1 shows the overlooking structure figure of the crystal silicon solar energy battery according to one embodiment of the present utility model；
Fig. 2 shows the side block diagram of the crystal silicon solar energy battery according to one embodiment of the present utility model；
Fig. 3 shows the side block diagram of the crystal silicon solar energy battery according to one embodiment of the present utility model；
Fig. 4 is shown to be illustrated according to the series connection of multiple crystal silicon solar energy batteries of one embodiment of the present utility model
Figure.
Reference：
1：Metal foil；
1-1：Electrode guide line；
2：First conductive adhesive layer；
3：Crystal silicon solar cell sheet；
4：Second conductive adhesive layer；
5：Welding；
6：Fluid sealant；With
7：Flexible package film
Embodiment
Specifically, the utility model provides a kind of crystal silicon solar energy battery, and as depicted in figs. 1 and 2, the crystalline silicon is too
It is positive can battery include stacking gradually metal foil 1, the first conductive adhesive layer 2, crystal silicon solar cell sheet 3 and in the crystal
Seven weldings 5 set on silicon solar cell 3, wherein in each welding 5 by the second conductive adhesive layer 4 with it is described
Crystal silicon solar cell sheet 3 is combined.As shown in figure 1, electrode guide line 1-1 can also be included in metal foil 1, make crystalline silicon too
Positive energy battery is connected with electrical appliance load.Fig. 1 and Fig. 2 schematically illustrate the number and shape of welding 5, art technology
Personnel to the number and shape of welding 5 it is understood that in order to realize similar technique effect, can carry out appropriate tune
It is whole.
According to some embodiments of the present utility model, the thickness of the metal foil 1 is 5 to 200 μm, preferably 10 to 70 μ
m；The thickness of first conductive adhesive layer 2 is 10 to 50 μm, preferably 20 to 40 μm；The thickness of the crystal silicon solar cell sheet 3
Spend for 120 to 250 μm, preferably 150 to 200 μm；The width of the welding 5 is 0.4 to 2.5mm, preferably 0.8 to 1.6mm, thickness
It is 0.1 to 0.4mm, preferably 0.15 to 0.3mm, and when there is a plurality of welding 5, a plurality of welding 5 is installed in parallel with each other
And spacing is 5 to 30mm, preferably 8 to 20mm；And the thickness of second conductive adhesive layer 4 be 10 to 50 μm, preferably 20 to
40μm。
According to some embodiments of the present utility model, in the plane of the crystal silicon solar energy battery, described first
The area of conductive adhesive layer 2 is identical with the area of the metal foil 1.
It is described in the plane of the crystal silicon solar energy battery according to some embodiments of the present utility model, it is described
The area of second conductive adhesive layer 4 is the 70% to 100% of the area of the welding 5.
According to some embodiments of the present utility model, in the plane of the crystal silicon solar energy battery, the metal
The area of paper tinsel 1 is the 80% to 120% of the area of the crystal silicon solar cell sheet 3.
According to some embodiments of the present utility model, in the plane of the crystal silicon solar energy battery, described first
The area of conductive adhesive layer 2 is the 80% to 120% of the area of the crystal silicon solar cell sheet 3.
According to some embodiments of the present utility model, the material of the metal foil is not limited, it can be using this
The metal foil generally used in technical field.Specifically, the metal foil be goldleaf, silver foil, platinum foil, copper foil, iron foil, aluminium foil,
Magnesium paper tinsel, zinc paper tinsel, tinfoil paper, lead foil etc..
According to some embodiments of the present utility model, the welding is tin-coated copper strip usually used in this field.
According to some embodiments of the present utility model, first conductive adhesive layer 2 and/or second conductive adhesive layer 4
It is pressure-sensitive adhesive layer or heat cure glue-line.The specific material of first conductive adhesive layer 2 and the second conductive adhesive layer 4 is not limited, it can
With from the conducting resinl for being generally used for solar cell in this area.The conducting resinl that can be used in the utility model it is specific
Example includes：7303,7376 and 7373 products of 3M companies；The CF series of products of Hitachi, Ltd；And Sony SCF series productions
Product.Chinese patent application (publication number can also be used：CN105400460A the conducting resinl prepared in the embodiment 1 described in).
As shown in figure 3, the crystal silicon solar energy battery also includes fluid sealant 6, it is wrapped in the metal foil 1, described
First conductive adhesive layer 2, the crystal silicon solar cell sheet 3, second conductive adhesive layer 4 and the surrounding of the welding 5；The crystalline substance
Body silicon solar cell also includes the flexible package film 7 for being arranged on the upper and lower both sides of the fluid sealant 6.
Embodiment
It should be noted that following examples are to exemplary illustration of the present utility model, the not feature in be the same as Example
It can be mutually combined in the case where not conflicting.It is below with reference to the accompanying drawings and new to describe this practicality in detail in conjunction with specific embodiments
Type.
The raw material used in the embodiment of table 1 and comparative example
Method of testing
According to content of the present utility model, obtained crystal silicon solar energy battery is subjected to bending process, and in
Magnificent people's republic's national standard IEC 61215 carries out generated output to the crystal silicon solar energy battery before and after bending process
(STC) test, changed with evaluating the electric property before and after its bending process, so as to evaluate the crack resistance of crystal silicon solar energy battery
Energy.
Bending process
By prepared square crystal silicon solar cell (size：125 × 125mm) an angle be placed on table angle, use
Power presses another angle of its diagonal positions 70mm height, is so iteratively repeated 5 times.Three other angles are also pressed
Repeat to bend according to same procedure.
Generated output (STC) is tested
According to GB/T 6495.1 method, using natural light, test suite is in specific irradiation level and temperature conditionss (battery
Temperature：25℃；Irradiation level：1000W·m-2) under crystal silicon solar energy battery I-E characteristic.
Embodiment 1
The preparation method of crystal silicon solar energy battery
Using Chinese patent application (publication number：CN105400460A the conducting resinl prepared in embodiment 1), it is specific to prepare
Step is as follows：
First, the raw material of poly- (methyl) acrylate of response type is weighed in 500ml three-necked flask by following consumption,
MA (methyl acrylate)/BA (butyl acrylate)/GMA (GMA)/EA (ethyl acetate)/VAZO-67
(2,2 '-azo-two-(2- methylbutyronitriles))=80/15/5/149.8/0.2 (g), solvent is ethyl acetate.Using pneumatic stirring
Device (ZD-J-I types, Shanghai Zuo great coating equipments Co., Ltd), uses N while stirring2Purging, is warming up to 60 DEG C and reacts 24 hours,
Faint yellow clarification thick liquid (solid content is 40%) is obtained after cooling, poly- (methyl) acrylate is made.
Then, poly- (methyl) acrylate, PN001 (bisphenol A-type benzoxazine, 70% is dissolved in butanone) are mixed molten
Solution is in MEK (MEK) solvent, then is separately added into Sn42Bi58With BYK410 (dispersant), wherein the ratio of each component is poly- (first
Base) acrylate: PN001: Sn42Bi58: BYK410=41.83%: 27.89%: 29.9%: 0.4% (wt%), thus obtain
Conducting resinl.
In conducting resinl (i.e. the first conductive adhesive layer) made from the copper foil surface coating above method, drying forms copper-foil conducting electricity
Adhesive tape.Conducting resinl made from the above method is coated with release liners, drying forms conductive adhesive film (i.e. the second conductive adhesive layer).
Above-mentioned copper-foil conducting electricity adhesive tape and conductive adhesive film are placed on 100 DEG C of warm table, make copper-foil conducting electricity adhesive tape and conduction
Glued membrane has preferable tack, is bonded copper-foil conducting electricity adhesive tape, copper-foil conducting electricity at the back side of monocrystaline silicon solar cell piece by hand
Adhesive tape as crystal silicon solar energy battery electrode.The release liners of conductive adhesive film are torn off by hand, in monocrystaline silicon solar cell piece
Front be bonded tin-coated copper strip and thin grid line using conductive adhesive film, used front gate line radical is 7, completes crystalline silicon too
The series connection of positive energy cell piece.
Then successively according to the crystal silicon solar cell sheet after super group of barrier film (UBF), EVA, series connection, EVA, solar energy
The order lamination of backboard is placed, and is finally laminated, and laminating temperature is 145 DEG C, and lamination times are 13 minutes.
In prepared crystal silicon solar energy battery, the thickness of metal foil 1 is 70 μm；The thickness of first conductive adhesive layer 2
For 25 μm；The thickness of crystal silicon solar cell sheet 3 is 180 μm；The width of welding 5 is 1.5mm, and thickness is 0.23mm, and
Spacing is 15.6mm；And the thickness of the second conductive adhesive layer 4 is 25 μm.
The method of testing provided according to the utility model, is tested embodiment 1, before bending process, the crystalline silicon sun
Can the power of battery be 1.85W, after bending process, crystal silicon solar energy battery power is 1.8W, and power simultaneously has no obvious decay.
Embodiment 2
The utility model also provides a kind of solar cell module, as shown in figure 4, monocrystaline silicon solar cell piece is cut into
6 deciles use 6 size identical monocrystaline silicon solar cell pieces, and electrode connection is carried out in the way of Fig. 4.It is each single
The back side of crystal silicon solar batteries piece is copper foil tape, and front is by the single thin grid line of welding insertion, by 6 monocrystal solar-electricities
Pond piece is together in series.It it is 145 DEG C in laminating temperature, lamination times is under the lamination of 13 minutes, make crystal silicon solar
Battery component.
According to method of testing provided by the utility model, embodiment 2 is tested, the power of solar cell module
For 1.87W.In actual applications, multiple monocrystaline silicon solar cell pieces are connected, crystal silicon solar electricity can be improved
The power in pond.
Comparative example 1
Different from the structure of embodiment 1, tin-coated copper strip is used respectively in the front and back of monocrystaline silicon solar cell piece
Welded, be used as the positive and negative electrode of crystal silicon solar energy battery.
The method of testing provided according to the utility model, is tested comparative example 1, before bending process, the crystalline silicon sun
Can the power of battery be 1.92W, after bending process, power is 1.14W, and power is substantially decayed.
According to embodiment 1 and the test result of comparative example 1, it can be seen that the crystal silicon solar that the utility model is provided
The structure of battery, can be such that crystal silicon solar energy battery has and generating work(basically identical before bending process after bending process
Rate, i.e. crystal silicon solar energy battery have good cracking resistance, with the flexible characteristic similar to thin-film solar cells.
The non-detailed portion of the utility model, the main gate line of such as crystal silicon solar cell sheet, western grid line, electrode outlet line
It is well known to those skilled in the art, will not be repeated here.
It is appreciated that the embodiment of foregoing description is only used for describing and unrestricted the utility model, those skilled in the art
It is appreciated that the utility model can be modified and deformed, without departing from spirit and scope of the present utility model.It is above-mentioned
Modification and variation be considered as the utility model and scope of the following claims.Protection domain of the present utility model is by appended
Claim limited.
Claims (10)
1. a kind of crystal silicon solar energy battery, metal foil (1) that the crystal silicon solar energy battery includes stacking gradually, first are led
Electric glue-line (2), crystal silicon solar cell sheet (3) and set on the crystal silicon solar cell sheet (3) at least one
Bar welding (5), wherein the welding (5) is combined by the second conductive adhesive layer (4) and the crystal silicon solar cell sheet (3).
2. crystal silicon solar energy battery according to claim 1, wherein, the thickness of the metal foil (1) is 5 to 200 μm；
The thickness of first conductive adhesive layer (2) is 10 to 50 μm；The thickness of the crystal silicon solar cell sheet (3) is 120 to 250
μm；The width of the welding (5) is 0.4 to 2.5mm, thickness be 0.1 to 0.4mm, and when there are a plurality of welding (5), institute
State a plurality of welding (5) be installed in parallel with each other and spacing be 5 to 30mm；And the thickness of second conductive adhesive layer (4) is 10
To 50 μm.
3. crystal silicon solar energy battery according to claim 1, wherein in the plane of the crystal silicon solar energy battery,
The area of first conductive adhesive layer (2) is identical with the area of the metal foil (1).
4. crystal silicon solar energy battery according to claim 1, wherein in the plane of the crystal silicon solar energy battery,
The area of second conductive adhesive layer (4) is the 70% to 100% of the area of the welding (5).
5. crystal silicon solar energy battery according to claim 1, wherein in the plane of the crystal silicon solar energy battery,
The area of the metal foil (1) is the 80% to 120% of the area of the crystal silicon solar cell sheet (3).
6. crystal silicon solar energy battery according to claim 1, wherein in the plane of the crystal silicon solar energy battery,
The area of first conductive adhesive layer (2) is the 80% to 120% of the area of the crystal silicon solar cell sheet (3).
7. crystal silicon solar energy battery according to claim 1, wherein the metal foil (1) be goldleaf, silver foil, platinum foil,
Copper foil, iron foil, aluminium foil, magnesium paper tinsel, zinc paper tinsel, tinfoil paper or lead foil.
8. crystal silicon solar energy battery according to claim 1, wherein the welding (5) is tin-coated copper strip.
9. crystal silicon solar energy battery according to claim 1, wherein first conductive adhesive layer (2) and/or described
Two conductive adhesive layers (4) are pressure-sensitive adhesive layer or heat cure glue-line.
10. according to crystal silicon solar energy battery according to any one of claims 1 to 9, wherein the crystal silicon solar is electric
Pond also includes fluid sealant (6), and the fluid sealant (6) is wrapped in the metal foil (1), first conductive adhesive layer (2), the crystalline substance
Body silicon solar cell (3), second conductive adhesive layer (4) and the welding (5) surrounding；The crystal silicon solar energy battery
Also include the flexible package film (7) for being arranged on the fluid sealant (6) upper and lower both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373391.2U CN206401339U (en) | 2016-12-14 | 2016-12-14 | Crystal silicon solar energy battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373391.2U CN206401339U (en) | 2016-12-14 | 2016-12-14 | Crystal silicon solar energy battery |
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| Publication Number | Publication Date |
|---|---|
| CN206401339U true CN206401339U (en) | 2017-08-11 |
Family
ID=59511660
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621373391.2U Active CN206401339U (en) | 2016-12-14 | 2016-12-14 | Crystal silicon solar energy battery |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707167A (en) * | 2019-08-29 | 2020-01-17 | 泰州隆基乐叶光伏科技有限公司 | Back contact solar cell module production method and back contact solar cell module |
| CN112397607A (en) * | 2019-08-16 | 2021-02-23 | 福建金石能源有限公司 | Silicon-based flexible battery and manufacturing method of module thereof |
| CN113161439A (en) * | 2021-01-30 | 2021-07-23 | 中节能太阳能科技（镇江）有限公司 | Battery interconnection structure, battery interconnection assembly and preparation method |
-
2016
- 2016-12-14 CN CN201621373391.2U patent/CN206401339U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112397607A (en) * | 2019-08-16 | 2021-02-23 | 福建金石能源有限公司 | Silicon-based flexible battery and manufacturing method of module thereof |
| CN110707167A (en) * | 2019-08-29 | 2020-01-17 | 泰州隆基乐叶光伏科技有限公司 | Back contact solar cell module production method and back contact solar cell module |
| CN113161439A (en) * | 2021-01-30 | 2021-07-23 | 中节能太阳能科技（镇江）有限公司 | Battery interconnection structure, battery interconnection assembly and preparation method |
| CN113161439B (en) * | 2021-01-30 | 2023-12-19 | 中节能太阳能科技（镇江）有限公司 | Battery interconnection structure, assembly and preparation method |
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