CN104659122B - A kind of connection method of crystal-silicon battery slice and crystal silicon battery component and crystal-silicon battery slice - Google Patents
A kind of connection method of crystal-silicon battery slice and crystal silicon battery component and crystal-silicon battery slice Download PDFInfo
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- CN104659122B CN104659122B CN201510071841.6A CN201510071841A CN104659122B CN 104659122 B CN104659122 B CN 104659122B CN 201510071841 A CN201510071841 A CN 201510071841A CN 104659122 B CN104659122 B CN 104659122B
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- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 51
- 239000010703 silicon Substances 0.000 title claims abstract description 51
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000013078 crystal Substances 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title abstract description 10
- 239000011159 matrix material Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 abstract description 45
- 230000007812 deficiency Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 153
- 238000010586 diagram Methods 0.000 description 9
- 210000003850 cellular structure Anatomy 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
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- 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
- H01L31/022433—Particular geometry of the grid contacts
-
- 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
- H01L31/04—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 adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- 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
- H01L31/04—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 adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The present invention is connected in series for existing crystal silicon battery component by welding,So that the high cost of battery component,Operation difficulty big deficiency when effective output is lowered and welds,The connection method of a kind of crystal-silicon battery slice and crystal silicon battery component and crystal-silicon battery slice is provided,The cell piece of this battery component includes crystal silicon battery sheet matrix and is arranged on the battery sheet matrix back side,As the metal back surface field of cell piece positive pole,The front of the crystal silicon battery sheet matrix is provided with a plurality of secondary grid line,Front main grid line for battery piece is not provided between the both ends of each bar pair grid line in front of cell piece,Relative position between secondary grid line both ends is not provided with cell piece back side main gate line in metal back surface field,The power output of cell piece is effectively raised using the crystal-silicon battery slice and component of this structure,Save material and operation,Reduces cost simultaneously improves operating efficiency,Due to being stacked connection between cell piece,Eliminate welding.
Description
Technical field
The present invention relates to a kind of crystal-silicon battery slice and a kind of crystal silicon battery component and crystal silicon battery group that can save welding
The connection method of part.
Background technology
In the prior art, it is believed that when the length of thin grid line is more than 50mm conflux effect of the main gate line to thin grid line
Can be deteriorated, therefore in order that the effect of confluxing of cell piece is good, silicon wafer cell piece generally uses following structure：Including crystal silicon chip sheet
Body, is provided with least two main gate lines of a plurality of thin grid line and each thin grid line of connection on crystal silicon chip body, every main gate line with
Each thin grid line is connected in series, and the thin grid line of each bar is separated into at least two regions by main gate line, by main gate line to each thin grid line
Electric current is collected.Such as the Chinese invention patent of Patent No. 201120496826.3, its notification number is CN202339923U, or
The Chinese invention patent of person's Patent No. 201120507425.3, its notification number is CN202339925U, and Patent No.
2011205065.3 Chinese invention patent, its notification number is CN202339926U, discloses the crystal silicon battery of said structure.
Making crystal silicon battery component using the crystal-silicon battery slice of said structure has following deficiency：1) need to be connected each cell piece using welding
Main gate line, so as to the electric current of multiple cell pieces is accumulated into a total electric current, welding and main gate line increased battery component
Manufacturing cost；2) because main gate line is, almost through the width of whole cell piece, when each cell piece is connected, need to use weldering
Band covers the main gate line on each cell piece, and to ensure the effective power of cell piece, welding need to be by main gate line all standing simultaneously
Main gate line can not be exceeded, be in industry referred to as " zero shows money or valuables one carries unintentionally ", zero shows money or valuables one carries unintentionally propose requirement very high to welding procedure, so far industry
It is interior to realize being really achieved " zero shows money or valuables one carries unintentionally "；3) because cell piece is crystal silicon battery, welding uses copper-based matter welding, silicon
It is 1: 6 with the ratio between the thermal coefficient of expansion of copper, therefore, in welding process, the silicon wafer of silicon matrix is heated with the welding of copper-based matter
Dilatancy situation has huge difference afterwards, easily causes component to produce disconnected grid even sliver, has a strong impact on component final product quality；
4) welding being arranged on cell piece occupies effective daylighting area of each cell piece, reduces the conversion efficiency of component, has
Research shows, if welding shielded area can be used the battery component of three grid of main flow 60 effective power of each component
4 to 5 watts can be increased；5) due in battery component, each cell piece being cascaded by welding, in adjacent two panels
In cell piece, the front of two panels cell piece sets up, and one end of welding connects the front of a wherein cell piece, welding it is another
One end connects the reverse side of another cell piece, and welding is needed two when the reverse side to another cell piece is walked by the front of a cell piece
Certain interval is left between the adjacent cell piece of piece.This gap is " piece spacing ", is somebody's turn to do " piece spacing " and be increased for encapsulating electricity
The area of the raw material such as EVA, TPT and glass of pond component, increased the volume of whole battery component, while increased being fabricated to
This.
The content of the invention
Be connected in series by welding it is an object of the invention to be directed to existing crystal silicon battery component so that battery component into
Operation difficulty big deficiency when this height, effective output are lowered and weld, there is provided a kind of crystal-silicon battery slice and crystal silicon battery
Component.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of crystal-silicon battery slice, including crystal silicon battery sheet matrix and be arranged on the battery sheet matrix back side, as cell piece just
The metal back surface field of pole, a plurality of secondary grid line is provided with the front of the crystal silicon battery sheet matrix, and each bar pair grid line is non-intersect, each bar
The end one of secondary grid line is arranged at cell piece end one, and the end two of each bar pair grid line is arranged at cell piece base end
At two, front main grid line for battery piece is not provided between the both ends of each bar pair grid line in front of cell piece, in metal back surface field
Relative position is not provided with cell piece back side main gate line between secondary grid line both ends；
Main gate line is not provided with the front and back of the battery sheet matrix；
At least one front main grid line for battery piece is set in the front of battery sheet matrix, in the gold at the back side of battery sheet matrix
At least one cell piece back side main gate line is set in category back surface field, front main grid line for battery piece and cell piece back side main gate line are respectively positioned on
The end of cell piece is set along the edge of cell piece；
Described front main grid line for battery piece is one, is electrically connected with the one/end of end two of secondary grid line, the cell piece
Back side main gate line is one, at the two/end of end one of secondary grid line；
Described front main grid line for battery piece is two, intersects along two adjacent edge portions of cell piece and sets, wherein an electricity
Pond piece front main grid line is electrically connected with the one/end of end two of secondary grid line；Cell piece back side main gate line is two, along battery
The other two adjacent edges portion of piece is intersecting to be set, wherein end two/end of one case cell piece back side main gate line corresponding to secondary grid line
One is set；
Described front main grid line for battery piece is one, is electrically connected with the one/end of end two of secondary grid line, the cell piece
Back side main gate line is three, wherein a cell piece back side main gate line is located at the two/end of end one of secondary grid line, two other
One end of cell piece back side main gate line is right with the cell piece back side main gate line at the two/end of end one of secondary grid line respectively
Electrical connection should be held；
Described secondary grid line be arranged in parallel along the edge of cell piece, front main grid line for battery piece and cell piece back side main gate line
It is parallel with main gate line or be vertically arranged；
A kind of crystal silicon battery component, including the battery component string that at least one set is made up of the cell piece of at least two series connection,
It is connected in series between each battery component string, it is characterised in that using the cell piece described in claim any one of 1-6, in each electricity
In the component string of pond, two adjacent cell pieces by preceding cell piece pair grid line end two and rear cell piece pair grid line end one at pair
The stacked fixation of cell piece metal back surface field answered is electrically connected in series；
Two described adjacent cell pieces fix electrical connection by conductive tape or welding；
Described photovoltaic cell component includes at least two battery component strings, each battery component string arranged in parallel, adjacent two
The head end or tail end for arranging battery component are fixedly connected by convergent belt or welding or battery adhesive tape；
Two adjacent cell pieces are corresponding with the end one of rear cell piece pair grid line by the end two of preceding cell piece pair grid line
The stacked fixation of cell piece metal back surface field be electrically connected in series；
Two described adjacent cell pieces fix electrical connection by conductive tape or welding.
The present invention has following some beneficial effect compared with prior art：Due in the front of cell piece, in secondary grid line
Between the two ends and back side position corresponding with the both ends of secondary grid line of cell piece is not provided with main gate line, therefore main gate line will not
The effective work area for taking cell piece or the effective work area for taking little cell piece, improve the output work of cell piece
Rate.
Due to being not provided with main gate line on cell piece or main gate line is set along the edge of cell piece, therefore main gate line will not
Effective work area of occupancy cell piece, or effective work area of little cell piece is taken, improve the output of cell piece
Efficiency.Importantly, due to being not provided with main gate line or setting main gate line in the portion of company of cell piece, the quantity of main gate line is significantly reduced,
Therefore welding can be saved, or is confluxed without welding, therefore welding welding procedure can be saved, save material and operation, reduced
Operating efficiency is improve during cost.
For battery component, due to being stacked connection between cell piece, therefore welding is eliminated, has not only saved welding material,
And eliminate welding technique so that because using welding welded bands come cell piece it is frangible the problems such as be obtained for effective solution,
The battery component and battery component manufacturing technology of a kind of new structure are provided for the industry.
Cell piece is connected using the inventive method, because two adjacent cell pieces are the ends two by preceding cell piece pair grid line
It is stacked what fixation was electrically connected in series with corresponding cell piece metal back surface field at the end one of rear cell piece pair grid line, therefore can saves
Welding is removed, welding has been saved and has been eliminated welding procedure, and improve the power output of cell piece.
Brief description of the drawings
Fig. 1 .1 crystal-silicon battery slices of the present invention the first example structure schematic diagrams；
Fig. 1 .2 are the D-D sectional views of Fig. 1 .1；
Fig. 1 .2.1 are the F portions partial enlarged drawing of Fig. 1 .2；
Fig. 1 .3 are the A-A sectional views of Fig. 1 .1；
Fig. 1 .3.1 are the C portions partial enlarged drawing of Fig. 1 .3；
Fig. 1 .3.2 are the E portions partial enlarged drawing of Fig. 1 .3；
Fig. 1 .4 are the upward view of Fig. 1 .3；
Fig. 2 .1 second example structure schematic diagram of crystal-silicon battery slice of the present invention；
Fig. 2 .2 are the I-I sectional views of Fig. 2 .1；
Fig. 2 .2.1 are the L portions partial enlarged drawing of Fig. 2 .2；
Fig. 2 .3 are the H-H sectional views of Fig. 2 .1；
Fig. 2 .4 are the upward view of Fig. 2 .3；
Fig. 3 .1 are the third example structure schematic diagram of crystal-silicon battery slice of the present invention；
Fig. 3 .2 are the rearview of Fig. 3 .1；
Fig. 4 is using the schematic diagram of embodiment of the present invention cell piece composition photovoltaic cell component attachment structure embodiment one；
Fig. 4 .1 are Fig. 4 D portions partial enlarged drawing；
Fig. 4 .2 are using the schematic diagram of embodiment of the present invention cell piece composition photovoltaic cell component attachment structure embodiment two；
Fig. 5 is the schematic diagram of attachment structure embodiment three when constituting photovoltaic cell component using the cell piece of the embodiment of the present invention 2.
Fig. 6 .1 are 4th kind of example structure schematic diagram of crystal-silicon battery slice of the present invention；
Fig. 6 .2 are the rearview of Fig. 6 .1；
Fig. 7 .1 are 5th kind of example structure schematic diagram of crystal-silicon battery slice of the present invention；
Fig. 7 .2 are the rearview of Fig. 7 .1；
Fig. 8 .1 Fig. 5 is that attachment structure is implemented when crystal-silicon battery slice Fig. 6 .1 and Fig. 7 .1 of the present invention constitutes crystal silicon battery component
The schematic diagram of example four；
Fig. 8 .1.1 are the N-N sectional views of Fig. 8 .1；
Fig. 8 .1.2 are the M-M sectional views of Fig. 8 .1.
Description of reference numerals
1- battery sheet matrixes, 2- front main grid line for battery piece, 3- metal back surface fields, 4- cell pieces back side main gate line, 5- pair grid
Line, 6- conductive tapes, 7- cell pieces, 8- busbars 9- draws positive pole 10- and draws the 12- ends of negative pole 11- ends one
The 15- of two 13- cell pieces base ends, one 14- cell pieces base end two lengthens piece 16- ordinary tablets
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the present invention：
As shown in Fig. 1 .1 to 3.2, the solar energy crystal-silicon battery slice of structure of the present invention includes battery sheet matrix 1 and as electricity
The metal back surface field 3 of pond piece positive pole, is provided with a plurality of thin grid line and is referred to as secondary grid line 5, each bar pair grid line in the front of battery sheet matrix 1
5 are respectively provided with end 1 and end 2 12, and the end 1 of each bar pair grid line is located at cell piece base end 1, each bar pair grid
The end 2 12 of line is located at cell piece base end 2 14, and each bar pair grid line can be linear, or shaped form,
But each bar pair grid line is non-intersect, what each bar pair grid line 5 can be arranged with arranged in parallel, or radioactivity.On this basis, originally
Invention has following preferred embodiment, but is not limited to following examples.It is preferred that metal back surface field 3 is aluminium back surface field.
Embodiment 1, main gate line is not provided with the obverse and reverse of battery sheet matrix.Namely on cell piece of the invention
It is not provided with main gate line.
Embodiment 2, only in the front of battery sheet matrix, at the end two of each bar pair grid line sets cell piece front master
Grid line 2, front main grid line for battery piece is electrically connected with each bar pair grid line, in the back side of battery sheet matrix, the matrix positioned at cell piece
End one at be provided with cell piece back side main gate line 4, cell piece back side main gate line 4 is electrically connected with metal back surface field 3.So set
Main gate line, front main grid line for battery piece is located at cell piece end one, and cell piece back side main gate line is located at cell piece end two,
Cell piece main gate line is only set along the edge of battery sheet matrix, and electricity is not provided with the middle part of the front and back of cell piece
Pond main gate line, therefore increased effective daylighting area of cell piece.
Embodiment 3
It is the further improvement of embodiment 2 as shown in Fig. 3 .1 to 3.2, is to be located at cell piece end in the front of cell piece
At the two and upper end adjacent with cell piece end two or lower end are respectively arranged with a front main grid line for battery piece 2, two cell pieces
Front main grid line is electrically connected, and at the back of cell piece, is respectively provided with cell piece lower end or upper end at cell piece end one
One cell piece back side main gate line, two cell piece back side main gate line electrical connections.
When no matter constituting crystal silicon battery component using the cell piece of any of the above-described example structure, adjacent cell piece leads to
The stacked mode in end one and end two is crossed to be attached, that is, the first piece battery bit end between the cell piece that same a line is arranged
Portion two overlaps with second cell piece end one and electrically connects, the connection between each cell piece the like.By each cell piece string
Connection gets up, and forms battery component and powers.In order to increase the daylighting area of cell piece, the length of battery component is reduced, can set
It is connected in series by convergent belt or welding again between the battery component string that multirow is connected by multiple cell pieces, each string.
Embodiment 4
It is to be located at cell piece end two to be provided with a cell piece front in the front of cell piece as shown in Fig. 6 .1 and 6.2
Main gate line 2, at the back of cell piece, at cell piece end one and cell piece lower end and upper end are respectively provided with a cell piece
Back side main gate line, three cell piece back side main gate line electrical connections.
Embodiment 5
It is to be located at cell piece lower end or upper end to be provided with a cell piece in the front of cell piece as shown in Fig. 7 .1 and 7.2
Front main grid line 2, at the back of cell piece, is respectively provided with a battery at cell piece end one and at cell piece end two
Piece back side main gate line, two cell piece back side main gate line electrical connections.
Battery component embodiment A：
It is from the cell piece shown in embodiment 1, three cell pieces are folded using head and the tail as shown in Fig. 2 .1-2.4 and Fig. 4 .2
The mode of pressure links together, and the head and the tail two ends of adjacent two cell piece are fixed into bonding composition battery pack by conductive tape 6
Part string one, then the battery component string four of battery component string two, battery component string three, battery component string one are formed in the same way
The end two of last a piece of cell piece connected with the last a piece of cell piece of battery component string two company by convergent belt or welding
Connect, the first piece cell piece end one of battery component string two passes through welding with the first piece cell piece end one of battery component string three
Or convergent belt concatenation, the end two of the last a piece of cell piece of battery component string three is by convergent belt or welding and battery component string
Four last a piece of cell piece is connected in series, and the of the first piece cell piece end one of battery component string three and battery component string four
A piece of cell piece end one composes in series a battery component by welding or convergent belt.By the first piece electricity of battery component string one
Pond piece end one sets welding or convergent belt forms the extraction positive pole of battery component, by the first piece cell piece of battery component string four
End one sets welding or convergent belt forms the extraction negative pole of battery component.Certainly, each cell piece can be horizontal positioned,
Can be obliquely installed.
Battery component embodiment B：
As shown in Fig. 1 .1-1.4 and Fig. 4 and 4.1, from the cell piece shown in embodiment 2, by three cell pieces using folded
The mode of pressure links together, and constitutes battery component string one by the main gate line of the Binder Phase pair of conductive tape 6, then with same
Mode forms the battery component string four of battery component string two, battery component string three, the last a piece of cell piece of battery component string one
End two be connected in series with the last a piece of cell piece of battery component string two by convergent belt or welding, battery component string two
First piece cell piece end one is concatenated with the first piece cell piece end one of battery component string three by welding or convergent belt, battery
The end two of the last a piece of cell piece of component string three is by convergent belt or the last a piece of battery of welding and battery component string four
Piece is connected in series, the first piece cell piece end one of battery component string three and the first piece cell piece end one of battery component string four
One battery component is composed in series by welding or convergent belt.Weldering is set by the first piece cell piece end one of battery component string one
Band or convergent belt formed battery component extraction positive pole, by the first piece cell piece end one of battery component string four set welding or
Convergent belt forms the extraction negative pole of battery component.Each battery component string is connected and connected by convergent belt or welding by corresponding main gate line
It is connected together.
Battery component embodiment C：
Cell piece embodiment 5 and cell piece embodiment 4 are used in combination, composition battery component embodiment C.Such as Fig. 8 .1 and
8.1.1 with shown in 8.1.2, the height of the cell piece of structure shown in cell piece embodiment 5 is more than the battery of structure shown in embodiment 4
The height of piece, therefore, the cell piece of the structure of cell piece embodiment 5 is referred to as to lengthen piece 15, by the battery of structure shown in embodiment 4
Piece is referred to as ordinary tablet 16.Using the connected mode of embodiment A, two ordinary tablets and a piece of lengthening piece string are formed into battery component string
First, battery component string two, battery component string three, battery component string four, wherein lengthening the tail that piece is located at odd-numbered line battery component string
End, positioned at the head end of even number line battery component string.It is stacked in by the upper end of the last a piece of cell piece of battery component string two and is located at
On the lower end of the lengthening piece of the tail end of battery component string one, it is stacked in by the lower end positioned at the first lengthening piece of battery component string two
Positioned at the upper end lower section of the ordinary tablet positioned at head end of battery component string three, by the last a piece of cell piece of battery component string four
Upper end is stacked on the lower end of the lengthening piece of the tail end of battery component string three.Remaining is with embodiment A.
Claims (7)
1. a kind of crystal silicon battery component, including at least two groups battery component strings being made up of the cell piece of at least two series connection, respectively
It is connected in series in lines between battery component string, it is characterised in that described cell piece includes crystal silicon battery component matrix (1) and sets
In the battery sheet matrix back side, the metal back surface field as cell piece positive pole, it is provided with the front of the crystal silicon battery component matrix
A plurality of secondary grid line, it is characterised in that each bar pair grid line is non-intersect, the end one of each bar pair grid line is arranged at cell piece end one
Place, the end two of each bar pair grid line is arranged at cell piece base end two, the two of each bar pair grid line in the front of cell piece
Front main grid line for battery piece is not provided between end, relative position between secondary grid line both ends is not provided with metal back surface field
Cell piece back side main gate line, sets at least one front main grid line for battery piece, in battery sheet matrix in the front of battery sheet matrix
The back side metal back surface field at least one cell piece back side main gate line, front main grid line for battery piece and cell piece back side master are set
The end that grid line is respectively positioned on cell piece is set along the edge of cell piece；
In each battery component string, the cell piece front that two adjacent cell pieces are set by the end two of preceding cell piece pair grid line
Main gate line is electrically connected in series with the stacked fixation of cell piece back side main gate line set at the end one of rear cell piece pair grid line, every
In individual battery component string, to lengthen piece, it is highly higher than the height of other cell pieces to the end cell piece of odd-numbered line battery component string,
, to lengthen piece, it is highly higher than the height of other cell pieces, the electricity of adjacent lines for first cell piece positioned at even number line battery component string
Pond component string is electrically connected in series by the way that the top and bottom of its first cell piece and end cell piece are superposed.
2. a kind of crystal silicon battery component as shown in claim 1, it is characterised in that described front main grid line for battery piece is
Bar, electrically connects with the one/end of end two of secondary grid line, and cell piece back side main gate line is one, positioned at the end of secondary grid line
At two/end one.
3. a kind of crystal silicon battery component as shown in claim 1, it is characterised in that described front main grid line for battery piece is two
Bar, intersects along two adjacent edge portions of cell piece and sets, wherein the one/end of end of a front main grid line for battery piece and secondary grid line
Two electrical connections；Cell piece back side main gate line is two, intersects along the other two adjacent edges portion of cell piece and sets, wherein battery
Two/end of end one that piece back side main gate line corresponds to secondary grid line is set.
4. a kind of crystal silicon battery component as shown in claim 1, it is characterised in that described front main grid line for battery piece is
Bar, electrically connects with the one/end of end two of secondary grid line, and cell piece back side main gate line is three, wherein a cell back
Face main gate line is located at the two/end of end one of secondary grid line, one end of two other cell piece back side main gate line respectively be located at
The corresponding end electrical connection of the cell piece back side main gate line at the two/end of end one of secondary grid line.
5. a kind of crystal silicon battery component as shown in one of claim 1-4 items, it is characterised in that described secondary grid line is along electricity
The edge of pond piece be arranged in parallel, and front main grid line for battery piece and cell piece back side main gate line are parallel with main gate line or be vertically arranged.
6. a kind of crystal silicon battery component as described in one of claim 1-4 items, it is characterised in that two described adjacent cells
Piece is fixed by conductive tape and electrically connected.
7. a kind of crystal silicon battery component as described in one of claim 1-4 items, it is characterised in that the battery component of adjacent lines
Lower end/the upper end of the end cell piece of string passes through first cell piece and end cell piece upper end or lower end with the upper end/lower end of first cell piece
The front main grid line for battery piece of setting or cell piece back side main gate line is superposed is electrically connected in series.
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| CN205303477U (en) * | 2015-05-22 | 2016-06-08 | 苏州沃特维自动化***有限公司 | Solar wafer , solar module and battery piece unit thereof |
| US10741703B2 (en) | 2016-07-29 | 2020-08-11 | Sunpower Corporation | Shingled solar cells overlapping along non-linear edges |
| KR102408801B1 (en) * | 2016-07-29 | 2022-06-15 | 맥시온 솔라 피티이. 엘티디. | A shingled solar cell superimposed along non-linear edges |
| CN106159019A (en) * | 2016-08-24 | 2016-11-23 | 天津英利新能源有限公司 | A kind of can bonding photovoltaic module battery connected mode and the assembly of production thereof |
| CN107134500A (en) * | 2017-05-05 | 2017-09-05 | 常州天合光能有限公司 | Small dimension solar cell, solar cell and preparation method thereof |
| CN109980035A (en) * | 2017-12-14 | 2019-07-05 | 阿特斯阳光电力集团有限公司 | Photovoltaic module |
| CN108428751B (en) * | 2018-04-13 | 2020-08-21 | 浙江晶科能源有限公司 | Shingle assembly structure |
| CN108711582A (en) * | 2018-05-22 | 2018-10-26 | 泰州隆基乐叶光伏科技有限公司 | A kind of solar cell string structure |
| CN108987509A (en) * | 2018-08-03 | 2018-12-11 | 浙江爱旭太阳能科技有限公司 | Two-sided imbrication solar cell module and preparation method |
| CN111276549B (en) * | 2018-11-20 | 2021-03-09 | 成都晔凡科技有限公司 | Battery piece for laminated assembly, laminated assembly and method for preparing battery piece |
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| CN101226968A (en) * | 2007-01-17 | 2008-07-23 | 易斌宣 | Method for reducing series resistance value of light gathering solar battery and light gathering solar battery obtained by the method |
| AU2007360045A1 (en) * | 2007-10-12 | 2009-04-16 | System S.P.A. | A process for connecting photovoltaic cells in series, a photovoltaic cell connectable in series using the process, and a module obtained with the process |
| EP2433309B1 (en) * | 2009-05-18 | 2023-04-19 | Markus Hörmann Vermietungen und Verpachtungen | Arrangement and circuit, and method for interconnecting flat solar cells |
| KR20140007327A (en) * | 2010-09-07 | 2014-01-17 | 다우 글로벌 테크놀로지스 엘엘씨 | Improved photovoltaic cell assembly |
| CN103022201A (en) * | 2011-09-27 | 2013-04-03 | 杜邦公司 | Crystal silicon solar battery module and manufacturing method thereof |
| CN103840024B (en) * | 2012-11-23 | 2018-03-13 | 北京创昱科技有限公司 | A kind of interconnection type flexible solar battery and preparation method thereof |
| CN103325875A (en) * | 2013-06-23 | 2013-09-25 | 深圳市华光达科技有限公司 | Current collecting device of novel solar cell and manufacturing technology of current collecting device |
| CN103400870A (en) * | 2013-08-02 | 2013-11-20 | 浙江正泰太阳能科技有限公司 | Solar cell, electrode pattern design thereof and solar cell assembly |
| CN204348734U (en) * | 2015-02-07 | 2015-05-20 | 秦皇岛博硕光电设备股份有限公司 | A kind of crystal-silicon battery slice and crystal silicon battery assembly |
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