CN105514185B - A kind of middle low-concentration solar cell - Google Patents
A kind of middle low-concentration solar cell Download PDFInfo
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- CN105514185B CN105514185B CN201510950082.0A CN201510950082A CN105514185B CN 105514185 B CN105514185 B CN 105514185B CN 201510950082 A CN201510950082 A CN 201510950082A CN 105514185 B CN105514185 B CN 105514185B
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- solar cell
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- 238000005520 cutting process Methods 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 238000002161 passivation Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 48
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 6
- 238000013082 photovoltaic technology Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 210000002186 septum of brain Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022425—Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
- H01L31/022441—Electrode arrangements specially adapted for back-contact solar cells
-
- 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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of middle low-concentration solar cell, the concentrator solar cell is formed by the cutting of monoblock solar cell, the thin grid line corresponding part in front of the concentrator solar cell is effective light area, the positive both sides of the concentrator solar cell are main gate line, it is evenly distributed with some diversion columns with conducting function along its length in the main gate line, the diversion column runs through the matrix of concentrator solar cell and is connected with the backplate A of concentrator solar cell, it is used as a pole of concentrator solar cell, the concentrator solar cell back side, effective corresponding backplate B in light area as concentrator solar cell an other pole, the both positive and negative polarity of the concentrator solar cell is at the back side of concentrator solar cell.The both positive and negative polarity of concentrator solar cell is arranged on the same face by the present invention so that this solar cell is highly susceptible to carrying out SMT paster processing, while the technique productions of this design are also very simple, can produce efficient concentrator solar cell with less expensive cost.
Description
Technical field
The invention belongs to technical field of solar utilization technique, more particularly to a kind of middle low-concentration solar cell.
Background technology
The market share of crystal silicon solar battery has accounted for more than 80% in current photovoltaic system, and the crystal silicon sun is electric
Pond flat component is main by solar energy ultra-white glass, bonding agent（EVA）, solar cell piece（Monocrystalline or polycrystalline）, back veneer material with
And aluminum alloy frame passes through a series of technique（Such as：Sorting, welding, lamination, frame encapsulation etc.）Produce.Although brilliant at present
Silicon solar cell component price has declined, but still has larger gap compared with the conventional electric power cost such as thermoelectricity, water power, and wherein
One vital factor is exactly the price of cell piece.
The conventional solar module majority of tradition is flat board solar module, is carried out using common flat glass saturating
Light, the size needs of cell panel are identical with the size of flat glass could intactly to receive solar incident ray, the use of cell piece
Amount is very big, therefore the production cost of flat board solar module is very high.
The incident ray in larger area region is converged to by optical lens on small cell piece, so as to reduce electricity
The consumption of pond piece is referred to as condensation photovoltaic technology to reduce the photovoltaic technology of system cost.Condensation photovoltaic technology can be divided into high power and gather again
Light photovoltaic（HCPV, light concentrating times are more than 300 times）, in times condensation photovoltaic and low-concentration photovoltaic technology.High power concentrating photovoltaic skill
Battery is generally multijunction compound solar cell used in art, due to its complex manufacturing plus it is raw materials used for arsenic, germanium,
Therefore cost is very expensive for the rare elements such as indium, adds HCPV technologies and requires pole to the accuracy and heat-sinking capability of whole system
It is high therefore to constrain its development.And be typically crystal silicon solar battery for the battery used in middle low-concentration photovoltaic, and due to
Lack the battery exclusively for middle low-concentration photovoltaic Technology design at present, therefore the source that its battery is obtained is generally by right
156*156mm or 125*125mm battery carries out diamond or is cut by laser to obtain, and crystal silicon solar battery positive and negative polarities
It is typically distributed across on two faces of solar cell（General front is negative pole, and the back side is positive pole）, being needed during welding will just with welding rod
Negative the two poles of the earth carry out connection in series-parallel, for size is 125*125mm or 156*156mm solar cell, due to size is larger can
To be welded by human weld or machinery, and said for the middle low-concentration solar cell for cutting into small size, then due to size
Gadget poor-performing and be easy to damage or the situation of failure welding occur, this reduces production efficiency and yields, greatly
Add component cost greatly；And solar cell is cut, it inevitably causes the efficiency of solar cell to decline,
So as to result in the rise of whole component cost, its development is constrained.
The content of the invention
It is an object of the invention to：It can be carried out for above-mentioned problem there is provided a kind of by way of paster
The middle low-concentration solar cell of concentrating photovoltaic assembly production.
The technical proposal of the invention is realized in this way：A kind of middle low-concentration solar cell, the concentrator solar cell
Formed by the cutting of monoblock solar cell, it is characterised in that：The thin grid line corresponding part in front of the concentrator solar cell is effective
Light area, the positive both sides of the concentrator solar cell are main gate line, and the luminous energy for being injected into effective light area effectively turns again
Electric energy is changed to, the electric current of opto-electronic conversion is reached after being collected by positive thin grid line in the main gate line on both sides, in the main grid
Some diversion columns with conducting function are evenly distributed with line along its length, the diversion column runs through concentrator solar cell
Matrix and be connected with the backplate A of concentrator solar cell, the diversion column by the electric current that positive thin grid line is collected conduct to
On backplate A, a pole of concentrator solar cell, the concentrator solar cell back side, the corresponding back of the body in effective light area are used as
Face electrode B is as an other pole for concentrator solar cell, and the both positive and negative polarity of the concentrator solar cell is in concentrator solar cell
The back side.
Middle low-concentration solar cell of the present invention, between being provided between its described backplate A and backplate B
Septal area.
Middle low-concentration solar cell of the present invention, the edge of its effective light area is passivation region,
The upper and lower corresponding region of both sides main gate line is passivation region on the concentrator solar cell.
The both positive and negative polarity of concentrator solar cell is arranged on the same face by the present invention so that this solar cell is highly susceptible to carrying out
SMT paster processing, so as to effectively carry out the production of concentrating component, while the technique productions of this design are also very simple
It is single, efficient concentrator solar cell can be produced with less expensive cost；And pass through the passivation region of effective light area surrounding
Domain, it is ensured that the efficiency of middle low-concentration solar cell, it is to avoid the generation of edge leakage current caused by cutting factor.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 front view.
Fig. 3 is Fig. 1 rearview.
Fig. 4 is Fig. 1 side view.
Marked in figure：1 is concentrator solar cell, and 2 be the thin grid line in front, and 3 be effective light area, and 4 be main gate line, and 5 are
Diversion column, 6 be backplate A, and 7 be backplate B, and 8 be spacer region, and 9 be passivation region.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in figure 1, a kind of middle low-concentration solar cell, the concentrator solar cell 1 is cut by monoblock solar cell
Form, the thin corresponding part of grid line 2 in front of the concentrator solar cell 1 is effective light area 3, the concentrator solar cell 1
Positive both sides be main gate line 4, the luminous energy for being injected into effective light area 3 is effectively converted to electric energy, the electric current of opto-electronic conversion again
It is uniform along its length in the main gate line 4 in the main gate line 4 that both sides are reached after being collected by positive thin grid line 2
Be distributed with some diversion columns 5 with conducting function, the diversion column 5 through concentrator solar cell 1 matrix and with optically focused too
The backplate A6 in positive electricity pond 1 is connected, and the diversion column 5 conducts the electric current that positive thin grid line 2 is collected to backplate A6,
As a pole of concentrator solar cell 1, for most of crystal silicon batteries, front is negative pole, therefore backplate A is negative
Pole, the back side of concentrator solar cell 1, the corresponding backplate B7 in effective light area 3 as concentrator solar cell 1 in addition
One pole, for most of crystal silicon batteries, backplate B is positive pole, the backplate A6 and backplate B7
Between be provided with spacer region 8, the both positive and negative polarity of the concentrator solar cell 1 is at the back side of concentrator solar cell 1 so that it is this too
Positive electricity pond is highly susceptible to carrying out SMT paster processing, so as to effectively carry out the production of concentrating component, while this design
Technique productions are also very simple, can produce efficient concentrator solar cell with less expensive cost.
Wherein, the edge of effective light area 3 is both sides main grid on passivation region 9, the concentrator solar cell 1
The upper and lower corresponding region of line 4 is passivation region 9, it is ensured that the efficiency of middle low-concentration solar cell, it is to avoid because of cutting factor
The generation of caused edge leakage current.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (3)
1. a kind of middle low-concentration solar cell, the concentrator solar cell（1）Formed by the cutting of monoblock solar cell, its feature
It is：The concentrator solar cell（1）The thin grid line in front（2）Corresponding part is effective light area（3）, the optically focused sun
Battery（1）Positive both sides be main gate line（4）, it is injected into effective light area（3）Luminous energy be effectively converted as electric energy, photoelectricity
The electric current of conversion passes through positive thin grid line（2）The main gate line on both sides is reached after being collected（4）On, in the main gate line（4）On
Some diversion columns with conducting function are evenly distributed with along its length（5）, the diversion column（5）Through optically focused sun electricity
Pond（1）Matrix and and concentrator solar cell（1）Backplate A（6）It is connected, the diversion column（5）By positive thin grid line（2）
The electric current of collection is conducted to backplate A（6）On, it is used as concentrator solar cell（1）A pole, the concentrator solar cell（1）
The back side, effective light area（3）Corresponding backplate B（7）It is used as concentrator solar cell（1）An other pole, the optically focused
Solar cell（1）Both positive and negative polarity in concentrator solar cell（1）The back side.
2. middle low-concentration solar cell according to claim 1, it is characterised in that：The backplate A（6）With the back side
Electrode B（7）Between be provided with spacer region（8）.
3. middle low-concentration solar cell according to claim 1 or 2, it is characterised in that：Effective light area（3）
Edge be passivation region（9）, the concentrator solar cell（1）Upper both sides main gate line（4）Upper and lower corresponding region to be blunt
Change area（9）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510950082.0A CN105514185B (en) | 2015-12-18 | 2015-12-18 | A kind of middle low-concentration solar cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510950082.0A CN105514185B (en) | 2015-12-18 | 2015-12-18 | A kind of middle low-concentration solar cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105514185A CN105514185A (en) | 2016-04-20 |
| CN105514185B true CN105514185B (en) | 2017-09-22 |
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| CN201510950082.0A Active CN105514185B (en) | 2015-12-18 | 2015-12-18 | A kind of middle low-concentration solar cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106653901A (en) * | 2016-12-01 | 2017-05-10 | 梁结平 | Crystalline silicon solar cell module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006027737A1 (en) * | 2006-06-10 | 2007-12-20 | Hahn-Meitner-Institut Berlin Gmbh | Unilaterally contacted solar cell with plated-through holes and method of manufacture |
| CN101710596A (en) * | 2009-11-23 | 2010-05-19 | 宁波太阳能电源有限公司 | Silicon solar battery |
| JP6123717B2 (en) * | 2014-03-24 | 2017-05-10 | 住友電気工業株式会社 | Solar cell, concentrating solar power generation unit, and concentrating solar power generation module |
| CN203941922U (en) * | 2014-07-01 | 2014-11-12 | 苏州阿特斯阳光电力科技有限公司 | A kind of back contact solar cell |
| CN205264722U (en) * | 2015-12-18 | 2016-05-25 | 四川钟顺太阳能开发有限公司 | SMD concentrator solar cell |
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| CN105514185A (en) | 2016-04-20 |
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