CN201788988U - Amorphous silicon film solar battery component - Google Patents
Amorphous silicon film solar battery component Download PDFInfo
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- CN201788988U CN201788988U CN 201020294667 CN201020294667U CN201788988U CN 201788988 U CN201788988 U CN 201788988U CN 201020294667 CN201020294667 CN 201020294667 CN 201020294667 U CN201020294667 U CN 201020294667U CN 201788988 U CN201788988 U CN 201788988U
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- amorphous silicon
- battery
- solar cell
- film solar
- electrode
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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
Abstract
The utility model relates to an amorphous silicon film solar battery component with high power and low voltage, belonging to the technical field of solar batteries and comprising front electrodes, amorphous silicon film layers, back electrodes and packaging layers which are deposited on an insulating substrate in sequence. The amorphous silicon film solar battery component is characterized by comprising at least two small batteries which are connected in parallel; each small battery is formed by a plurality of battery units which are connected from inside in series; channels of the front electrodes, the amorphous silicon film layers and the back electrodes in the adjacent small batteries are distributed in a mirror symmetry manner; and a common electrode is arranged between the adjacent small batteries; and the positive electrodes and the negative electrodes of the solar battery component are led out by conducting belts. The amorphous silicon film solar battery component adopts a structure with in-series internal connection and in-parallel external connection, has the characteristics of high power and low voltage, can meet the requirements of different clients, is wide in application, and not only can be applicable to laminated solar battery components, but also can be applied to unijunction amorphous silicon solar battery components.
Description
Technical field
The utility model relates to a kind of non-crystal silicon thin-film solar cell component of high power low-voltage, belongs to technical field of solar batteries.
Background technology
At present, solar photovoltaic assembly is applied to sphere of life more and more, as generate electricity by way of merging two or more grid systems, off-grid type power supply, BIPV etc.And in the middle of the off-grid type electricity generation system, the electric energy that needs dependence battery stores photovoltaic module to be produced, and in the needs electricity consumption, export load to.Cost is low, low light level performance outstanding, high-temperature behavior is good and non-crystal silicon solar cell has, and annual energy output height advantages such as (amorphous silicon battery of equal-wattage and crystal silicon cell are relatively) is more and more favored in off-grid type is used.Battery tension during off-grid type is used is with 6V, and 12V is in the majority, and particularly at the bigger storage battery of capacity, needed battery component power is higher.For monolithic element, what the amorphous silicon membrane assembly generally adopted is the monoblock battery to be divided into the battery unit joint that certain width is much arranged by laser grooving and scribing, carrying out internal series-connection then couples together each battery unit joint and obtains required voltage and power, make whole assembly only need get final product like this at the both positive and negative polarity source of welding current lead-out wire on both sides, so not only reduce welding job, reduce cost, also make good looking appearance simultaneously.But because the width of battery unit joint has an optimum value scope, can not be too small, can not be excessive, cell widths is too small, every joint invalid increases, total effective generating area is just few more, cell widths is excessive, the shunt conductance that the horizontal heterogeneity of battery material causes increases with the increase of area, and the series resistance that the lateral resistance of transparency electrode causes also increases with the increase of area, therefore all can reduce power output, so to some with the amorphous silicon membrane component application in giving the autonomous system of low-voltage charge in batteries, in order to obtain higher-wattage, will occur the not only thin but also long shape of assembly overall dimension during the assembly of low-voltage, cause inconvenience to use, for the assembly that dimensional requirement is arranged, have no alternative but adopt the way that reduces power to satisfy the low-voltage requirement especially.For example, the patent No. is that the Chinese patent of ZL200720172723.5 discloses a kind of lamination solar cell that can satisfy big electric current, low-voltage, with two straton inside battery parallel connections, solved the electric current mismatch problem of two straton batteries in the existing laminated cell, but this structure only is fit to lamination solar cell.Application number is that the Chinese patent of ZL200910105067.0 discloses a kind of profiled solar photovoltaic curtain wall glass and its preparation method; on the structural design and technology of extensive integrated non-crystal silicon solar cell central layer; sub-battery series connection or joint number that effective area is identical are identical; the sub-battery parallel connection of voltage unanimity; can accomplish scale production; this special-shaped solar photovoltaic curtain wall glass is from vertically being divided into a plurality of photovoltaic modulies; and photovoltaic module is realized parallel connection outside by conductive strips, but unexposed amorphous silicon thin-film solar cell is in the horizontal by a plurality of baby battery component internal series connection; the structure of parallel connection outside.Therefore, need design a kind of novel non-crystal silicon thin-film solar cell component (abbreviation battery component), in the horizontal by the structure of the series connection of a plurality of baby battery component internal, parallel connection outside, under certain size requires, make this battery component have the characteristic of high power and low-voltage, and this structure both had been fit to laminated cell, was applicable to single junction cell again.
The utility model content
Task of the present utility model is at above-mentioned the deficiencies in the prior art, provide a kind of simple in structure, be applicable to the high power of laminated cell and single junction cell, the non-crystal silicon thin-film solar cell component of low-voltage.
In order to realize task of the present utility model, the technical scheme that adopts is: design a kind of non-crystal silicon thin-film solar cell component, be included in the preceding electrode of sequential aggradation on the insulated substrate, the amorphous silicon membrane layer, back electrode and encapsulated layer, it is characterized in that described solar module is composed in parallel by at least two baby batteries, each baby battery is made of the battery unit joint of a plurality of internal series-connections, preceding electrode in the adjacent baby battery, the amorphous silicon membrane layer, the raceway groove distributing position mirror image symmetry of back electrode, and have common electrode between the adjacent baby battery, the positive and negative electrode of solar module is drawn by conductive strips.
The battery unit joint at described adjacent baby battery two ends is provided with the electrode of same polarity, and conductive strips are drawn by confluxing.
The width of the conductive strips on the described common electrode is greater than the width of the conductive strips on the adjacent baby battery two ends battery unit joint.
Accompany glued membrane between the back electrode of described solar module and the encapsulated layer.
Described solar module is an amorphous silicon lamination solar cell assembly.
The described conductive strips that conflux have the insulating tape that prevents the baby battery short circuit, and this insulating tape is the PET insulating barrier.
The beneficial effects of the utility model are amorphous silicon membrane solar module internal series-connections, parallel connection outside, simple in structure, characteristic with high power, low-voltage, can satisfy different clients' demand, be widely used,, can be applicable to the unijunction amorphous silicon solar cell module again both applicable to the lamination solar cell assembly.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic diagram of embodiment 1;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the schematic diagram of embodiment 2;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the schematic cross-section of Fig. 4;
Fig. 7 is the schematic diagram of embodiment 3;
Fig. 8 is the vertical view of Fig. 7;
Fig. 9 is the schematic cross-section of Fig. 7;
Figure 10 is the structural representation of existing non-crystal silicon thin-film solar cell component.
Among Fig. 1 to Figure 10, substrate 1, preceding electrode 2, amorphous silicon membrane layer 3, back electrode 4, glued membrane 5, encapsulated layer 6, conductive strips 7, the isolation channel 8 of back electrode, the raceway groove 9 of amorphous silicon membrane layer, the isolation channel 10 of preceding electrode, insulating tape 11, the battery unit joint 31 at non-crystal silicon thin-film solar cell component two ends, intermediate cell unit joint 32, the battery unit with common electrode saves 33, conductive strips 71 on the battery unit joint at adjacent baby battery two ends, the conductive strips 72 on the common electrode, conductive strips 73 conflux.
Embodiment
Embodiment 1:
The utility model non-crystal silicon thin-film solar cell component, be included in preceding electrode, amorphous silicon membrane layer, back electrode and the encapsulated layer of sequential aggradation on the insulated substrate, this solar module is composed in parallel by at least two baby batteries, each baby battery is made of the battery unit of a plurality of internal series-connections, the raceway groove distributing position of the preceding electrode in the adjacent baby battery, amorphous silicon membrane layer, back electrode is opposite, and adjacent baby battery has a common electrode, and the positive and negative electrode of solar module is drawn by conductive strips.Specifically: according to the requirement of client to voltage, adopt internal series-connection, parallel connection outside structure combining, the baby battery that a battery component is divided into a plurality of parallel connection outsides, adjacent baby battery has shared electrode, each baby battery is made of the battery unit joint that a plurality of internal series-connections connect, and can obtain the assembly of high power, low-voltage like this.
As shown in Figure 1 to Figure 3, non-crystal silicon thin-film solar cell component is made up of two baby batteries, battery unit joint 31 electrodes with same polarity on the baby battery at its two ends, 33 is shared electrode, leads to load by conductive strips 72,73 electric currents with battery component.See Fig. 2, it is the non-crystal silicon thin-film solar cell component of shared negative pole, electrode 2 before the sputter transparency conducting layer forms on substrate 1, and adopt infrared laser to the delineation of insulating of preceding electrode 2, battery unit joint 31 on the baby battery at two ends is positive pole, 32 for intermediate cell unit joint, has optimal width, and 33 is shared negative pole.The width of battery unit joint 31 is littler than the width of temporary location joint 32, and the comparable wide slightly 2-5mm of conductive strips 71 on it of the width of battery unit joint 31 gets final product; And the confluxed electric current of two baby batteries of shared negative pole 33, so the width of the battery unit at common electrode place joint is 2 times of intermediate cell unit pitch width degree or than 2 times wide slightly 2-5mm.After having deposited amorphous silicon membrane layer 3, it is delineated, form the raceway groove 9 of amorphous silicon membrane layer with green laser; Behind the intact dorsum electrode layer 4 of sputter, amorphous silicon membrane layer 3 and dorsum electrode layer 4 are delineated simultaneously, formed the isolation channel 8 of back electrode with green laser.And realize two shared same negative poles of baby battery, two ends are anodal design, the raceway groove 9 of the main isolation channel 8 that relies on back electrode, amorphous silicon membrane layer and transparent before the relative position of isolation channel 10 two baby batteries about battery component of electrode different and realize, in each battery unit joint as the on the left side baby battery, be the isolation channel 10 of transparent preceding electrode from left to right successively, the raceway groove 9 of amorphous silicon membrane layer, the isolation channel 8 of back electrode; In each battery unit of baby battery saves on the right, the raceway groove distributing position of preceding electrode, amorphous silicon membrane layer and back electrode is opposite with left side baby battery, in the baby battery of the right, be the isolation channel 8 of back electrode from left to right successively, the raceway groove 9 of amorphous silicon membrane layer, the isolation channel 10 of electrode before transparent, the raceway groove distributing position mirror image symmetry of the preceding electrode in the promptly adjacent baby battery, amorphous silicon membrane layer, back electrode.After finishing all laser grooving and scribings, the conductive strips 71,72 of burn-oning respectively on the anodal and shared negative pole at the battery two ends, the conductive strips 71 of wherein drawing anode compile output by the conductive strips 73 that conflux, the 73 times sticking cards of conductive strips that conflux have the insulating tape that prevents short circuit between the baby battery, and the material that insulating tape can adopt PET or other to play insulating effect is made.Conflux conductive strips 72 on conductive strips 73 and the shared negative pole respectively as the both positive and negative polarity lead-out wire of solar cell.According to the current arrangements difference, the electric current on the conductive strips 72,73 is about twice on the conductive strips 71, so the width of conductive strips 72,73 than conductive strips 71 wide (thickness of conductive strips is identical), reduces energy loss in the circuit.Utilize lamination or autoclave process that substrate 1, preceding electrode 2, amorphous silicon membrane layer 3, back electrode 4, glued membrane 5 and encapsulated layer 6 are formed the doubling assembly at last.
Adopting overall dimension is the amorphous silicon solar cell module of 707mm * 1640mm, give the charge in batteries of 12V, requiring the operating voltage of battery component is 16-19V, if battery is adopted traditional internal series-connection mode, the width of battery unit joint is 10mm, and the operating voltage of this battery component is 38-40V.And adopted the battery module structure of the shared negative pole of the utility model design, the same components size, the battery component operating voltage of same battery unit pitch width degree is 18-19V, and the component power basically identical of component power and traditional internal series-connection mode satisfies to the requirement of low-voltage charge in batteries.
Embodiment 2:
Seeing Fig. 4 to Fig. 6, is the film assembly of shared positive pole, with the film assembly basically identical of shared negative pole shown in Figure 2, the main distinction is: the battery unit joint 31 on the battery small in ends is negative pole, and 33 is shared positive pole, and battery unit joint 31,32,33 are and have optimal width.After having deposited amorphous silicon membrane layer 3, it is delineated, form the raceway groove 9 of amorphous silicon membrane layer with green laser; Behind the intact dorsum electrode layer 4 of sputter, amorphous silicon membrane layer 3 and dorsum electrode layer 4 are delineated simultaneously, formed the isolation channel 8 of back electrode with green laser.The shared same positive pole of two baby batteries of present embodiment, two ends are this design of negative pole, the raceway groove 9 of the main isolation channel 8 that relies on back electrode 4, amorphous silicon membrane layer 3 and transparent before the isolation channel 10 of electrode 2 different and realize at the relative position of two baby batteries, in each battery unit joint as the on the left side baby battery, be the isolation channel 8 of back electrode from left to right successively, the raceway groove 9 of amorphous silicon membrane layer, the isolation channel 10 of transparent preceding electrode; And during each battery unit of baby battery saves on the right, be the isolation channel 10 of transparent preceding electrode from left to right successively, the raceway groove 9 of amorphous silicon membrane layer, the isolation channel 8 of back electrode, the raceway groove distributing position mirror image symmetry of the preceding electrode in the promptly adjacent baby battery, amorphous silicon membrane layer, back electrode.
Adopting overall dimension is the battery component of 707mm * 1640mm, give the charge in batteries of 12V, the operating voltage that requires battery component is 16-19V, if battery is adopted traditional internal series-connection mode, the optimal width of battery unit joint is 10mm, and then the operating voltage of this battery component is 38-40V.And adopted the battery module structure of the shared positive pole of the utility model design, the same components size, the battery component operating voltage of same battery unit pitch width degree is 18-19V, the component power basically identical of component power and traditional internal series-connection mode and shared negative pole satisfies to the requirement of low-voltage charge in batteries.
Embodiment 3:
Adopting overall dimension is the battery component of 707mm * 1640mm, gives the charge in batteries of 6V, and the operating voltage that requires battery component is about 9V, if battery component is adopted traditional internal series-connection mode, then the operating voltage of this battery component is 34-36V.Present embodiment adopts three baby battery parallel connections, see Fig. 7 to Fig. 9, the same components size, the battery component operating voltage of same battery optimal width is 9-10V, the component power basically identical of component power and traditional internal series-connection mode, shared negative pole and shared positive pole satisfies to the requirement of low-voltage charge in batteries.
Below in conjunction with the accompanying drawings embodiment of the present utility model has been done detailed description, but the utility model is not limited to the foregoing description, in the ken that those of ordinary skills possessed, can also under the prerequisite that does not break away from aim of the present invention, make various variations.
Claims (7)
1. non-crystal silicon thin-film solar cell component, be included in preceding electrode, amorphous silicon membrane layer, back electrode and the encapsulated layer of sequential aggradation on the insulated substrate, it is characterized in that described solar module is composed in parallel by at least two baby batteries, each baby battery is made of the battery unit joint of a plurality of internal series-connections, the raceway groove of the preceding electrode in the adjacent baby battery, amorphous silicon membrane layer, back electrode distributes and is the mirror image symmetry, and have common electrode between the adjacent baby battery, the positive and negative electrode of solar module is drawn by conductive strips.
2. non-crystal silicon thin-film solar cell component according to claim 1 is characterized in that the battery unit joint at described adjacent baby battery two ends is provided with the electrode of same polarity, and conductive strips are drawn by confluxing.
3. non-crystal silicon thin-film solar cell component according to claim 1 is characterized in that the width of the width of the conductive strips on the described common electrode greater than the conductive strips on the adjacent baby battery two ends battery unit joint.
4. non-crystal silicon thin-film solar cell component according to claim 1 is characterized in that accompanying glued membrane between the back electrode of described solar module and the encapsulated layer.
5. non-crystal silicon thin-film solar cell component according to claim 1 is characterized in that described solar module is an amorphous silicon lamination solar cell assembly.
6. non-crystal silicon thin-film solar cell component according to claim 2 is characterized in that the described conductive strips that conflux have insulating tape.
7. non-crystal silicon thin-film solar cell component according to claim 6 is characterized in that described insulating tape is the PET insulating barrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020294667 CN201788988U (en) | 2010-08-16 | 2010-08-16 | Amorphous silicon film solar battery component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020294667 CN201788988U (en) | 2010-08-16 | 2010-08-16 | Amorphous silicon film solar battery component |
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| CN201788988U true CN201788988U (en) | 2011-04-06 |
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| CN 201020294667 Expired - Lifetime CN201788988U (en) | 2010-08-16 | 2010-08-16 | Amorphous silicon film solar battery component |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082198A (en) * | 2010-09-30 | 2011-06-01 | 深圳市创益科技发展有限公司 | High-power low-voltage silicon-based thin film solar cell and manufacturing method thereof |
| CN102222712A (en) * | 2011-06-27 | 2011-10-19 | 保定天威集团有限公司 | High-efficiency thin-film solar component battery structure and implementation method thereof |
| CN111446743A (en) * | 2018-12-27 | 2020-07-24 | 德州易能新能源科技有限公司 | Photovoltaic charging device |
| TWI798951B (en) * | 2021-11-22 | 2023-04-11 | 凌巨科技股份有限公司 | Semi transmissive solar cell |
-
2010
- 2010-08-16 CN CN 201020294667 patent/CN201788988U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102082198A (en) * | 2010-09-30 | 2011-06-01 | 深圳市创益科技发展有限公司 | High-power low-voltage silicon-based thin film solar cell and manufacturing method thereof |
| CN102222712A (en) * | 2011-06-27 | 2011-10-19 | 保定天威集团有限公司 | High-efficiency thin-film solar component battery structure and implementation method thereof |
| CN111446743A (en) * | 2018-12-27 | 2020-07-24 | 德州易能新能源科技有限公司 | Photovoltaic charging device |
| TWI798951B (en) * | 2021-11-22 | 2023-04-11 | 凌巨科技股份有限公司 | Semi transmissive solar cell |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |
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| CX01 | Expiry of patent term |