CN109421365A - A kind of minute pattern of solar battery positive electrode ties printing screen plate without net - Google Patents
A kind of minute pattern of solar battery positive electrode ties printing screen plate without net Download PDFInfo
- Publication number
- CN109421365A CN109421365A CN201710787593.4A CN201710787593A CN109421365A CN 109421365 A CN109421365 A CN 109421365A CN 201710787593 A CN201710787593 A CN 201710787593A CN 109421365 A CN109421365 A CN 109421365A
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- CN
- China
- Prior art keywords
- printing
- grenadine
- net
- line hole
- positive electrode
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/34—Screens, Frames; Holders therefor
- B41F15/36—Screens, Frames; Holders therefor flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2215/00—Screen printing machines
- B41P2215/10—Screen printing machines characterised by their constructional features
- B41P2215/12—Screens
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Printing Plates And Materials Therefor (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of minute patterns of solar battery positive electrode to tie printing screen plate without net, it includes screen frame and connects the grenadine being fixed in the screen frame, each warp and weft in grenadine are respectively parallel or perpendicular to screen frame, Printing Zone and non-printing district are provided on the grenadine, the figure of the Printing Zone includes secondary grid line hole, main grid string holes and frame string holes, the pair grid line hole is between adjacent two wefts, each main grid string holes is connected to multiple secondary grid line holes, main grid string holes is arranged in a mutually vertical manner with secondary grid line hole, the minute pattern that multiple conductive silver pastes can not penetrate is provided in the main grid string holes, the surrounding of main grid string holes and secondary grid line hole is arranged in peripheral frame line hole, the shape in peripheral frame line hole is waveform or zigzag.The present invention solves the problems, such as that screen cloth upper warp and woof line is formed by net knot in the prior art and seriously affects printing slurry, the bad and latitude and longitude such as printing broken string is caused to block the problem of causing frame void print, main grid void print.
Description
Technical field
The invention belongs to solar cell preparation technologies, and in particular to a kind of small figure of solar battery positive electrode
Shape ties printing screen plate without net.
Background technique
With being becoming tight the day of global energy, solar energy is with the exclusive advantage such as pollution-free, the market space is big by the world
The extensive attention of various countries.Solar battery is also known as " solar chip " or " photocell ", is a kind of utilization photovoltaic effect general
Solar energy is converted into the device of electric energy, mainly has crystal silicon battery, semi-conductor cell, without machine battery, organic battery etc., wherein
Crystal silicon solar batteries occupy market mainstream leading position.
The structure of crystal silicon solar batteries mainly includes front flannelette, front p-n junction, front surface antireflection film, positive back side electricity
Extremely equal parts, it is that cell piece is produced into that wherein cell piece front side conductive silver paste, which plays the role of collected current and conduction electric current,
Important component part in this, the front electrode printing technology of existing solar battery are the silk-screen printing of mature, tradition
Silk-screen halftone be by screen cloth after certain pulling force stretches, be adhered on screen frame, after pretreatment removal grease, impurity
Photoresists coating is carried out, is rinsed through printing down solidification, development and forms pattern.On the one hand the function of screen cloth is to be used to support photoresists,
Form pattern；It on the other hand is the transit dose for adjusting slurry.Screen cloth is grenadine made of alternately weaving by the grenadine of latitude and longitude
Material be mainly made of poly-vinegar fiber, nylon fiber, metal material or composite etc..Screen cloth is through certain tensile elongation
Afterwards, it or is directly bonded on screen frame and forms halftone, or composite halftone is fabricated to by combination process.
Silk-screen halftone used at present, silk screen and screen frame are handled according to certain angle when stretching, general angle
Degree is 15 °, 22.5 °, 30 °, 45 ° etc., wherein there is preferable straight light at the lines of the secondary grid line of gained and edge after 22.5 ° of printings
Slippery is most widely used, but screen cloth upper warp and woof line is formed by net knot or can more or less influence the logical of printing slurry
It crosses, poor, easy network blocking that there are still printing line style uniformities, bargraphs lack to form empty print and disconnected grid, grid line width cannot be done too
The problems such as narrow, causes cell piece grade and electrical property to be decreased obviously.
Summary of the invention
In view of this, in view of the deficiencies of the prior art, the present invention provides a kind of minute pattern of solar battery positive electrode
Printing screen plate is tied without net, being formed by net knot to solve screen cloth upper warp and woof line in the prior art seriously affects printing slurry, causes
The bad problems and latitude and longitude such as printing broken string block the problem of causing frame void print, main grid void print.
In order to solve the above technical problems, the technical scheme is that using a kind of solar battery positive electrode small figure
Shape ties printing screen plate without net, it includes screen frame and connects the grenadine being fixed in the screen frame, and grenadine is by more warps and latitude
Line weaves, it is characterised in that: each warp and weft in the grenadine are respectively parallel or perpendicular to screen frame, the grenadine
On be provided with Printing Zone and non-printing district, the figure of the Printing Zone includes multiple spaced and parallel distributions for printing secondary grid line
Secondary grid line hole and multiple spaced and parallel distributions for printing the main grid string holes of main gate line and for printing peripheral frame line
Peripheral frame line hole, positioned at adjacent two wefts between, each main grid string holes and multiple pair grid line holes are equal in the pair grid line hole
Connection, main grid string holes are arranged in a mutually vertical manner with secondary grid line hole, and being provided with multiple conductive silver pastes in the main grid string holes can not penetrate
Minute pattern, the surrounding of main grid string holes and secondary grid line hole is arranged in peripheral frame line hole, and the shape in peripheral frame line hole is wave
Shape wave or zigzag.Wherein, the shape of minute pattern can be a variety of for circle, rectangle, triangle, rectangular, diamond shape, polygon etc.
Figure, the arrangement mode in main grid string holes are the various arrangements mode such as parallel, interval.
Preferably, the material of the screen frame is aluminium alloy.
Preferably, the material of the warp and weft of the grenadine is stainless steel or nickel-base alloy.
Preferably, the line footpath of the warp of the grenadine or weft is 16mm.
Preferably, the mesh number of the grenadine is 325 mesh.
Preferably, the quantity in secondary grid line hole is 90~130 on the grenadine Printing Zone.
Preferably, the width in any pair grid line hole is 20~35 μm on the grenadine Printing Zone.
Preferably, the spacing in adjacent pair grid line hole is 1.0~2.0mm on the grenadine Printing Zone.
Preferably, the width in any main gate line hole is 0.4~1.5mm on the grenadine Printing Zone.
Preferably, in the main grid string holes gross area of minute pattern and main grid string holes area ratio 25~45% it
Between.
Compared with prior art, positive electrode minute pattern provided by the invention has the advantage that without net knot printing screen plate
The present invention is thrown the net technology using zero degree, and net knot can be effectively avoided at secondary grid, solves screen cloth upper warp and woof line institute in the prior art
The net knot of formation seriously affects printing slurry and passes through, and poor printing line style uniformity, easy network blocking, bargraphs is caused to lack to form void
Print and disconnected grid, grid line width cannot be done the problems such as too narrow；Simultaneously positive electrode frame line style use wave or sawtooth pattern, avoid through
Weft blocks, and solves the problems, such as that frame line is blocked due to latitude and longitude is easy empty print；Multiple small figures are added in main grid string holes
Shape applies the emulsion of certain figure at main gate line, emulsion plays the role of support in moulding process, can increase ink saturate amount,
Due to there is the local area of emulsion very small, the slurry of surrounding can fill up the vacancy at this after collapsing, to ensure that electrode
Main gate line it is unimpeded.The obstruction of knot and blocking for latitude and longitude are not netted, strike through can increase by 20% or more, flow printing more
Freely, printing is linear more smooth, reduces the generation for resolving grid phenomenon and main grid void print, frame void print phenomenon, keeps secondary grid thin
Line, halftone pair grid line is wide most can carefully to accomplish 20 μm, and depth-width ratio is big, reduce grid line to the masked area of light, improve the sun
The grade and electrical property of energy cell piece.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
The enlarged diagram that Fig. 2 is A in Fig. 1 (frame line is waveform)；
The enlarged diagram that Fig. 3 is A in Fig. 1 (frame line is zigzag)；
Fig. 4 is the enlarged diagram of B in Fig. 1.
Marginal data:
1- screen frame, 2- grenadine, the Printing Zone 3-, 4- non-printing district, 5- minute pattern；21- warp, 22- weft；31- pair grid
String holes, 32- main grid string holes, 33- frame string holes.
Specific embodiment
It is with reference to the accompanying drawing and preferred real in order to make those skilled in the art more fully understand technical solution of the present invention
Applying mode, the present invention is described in further detail.It should be pointed out that following preferred embodiments are not construed as to this hair
Bright limitation, protection scope of the present invention should be defined by the scope defined by the claims..For the common of the art
For technical staff, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection scope of the present invention.
Referring to Fig. 1 to Fig. 4, the present invention provides a kind of minute patterns of solar battery positive electrode to tie printing net without net
Version, it includes screen frame 1 and connects the grenadine 2 being fixed in the screen frame 1, and grenadine 2 is woven by more warps 21 and weft 23
It forms, it is characterised in that: each warp 21 and weft 22 in the grenadine 2 are respectively parallel or perpendicular to screen frame 1, the grenadine
Printing Zone 3 and non-printing district 4 are provided on 2, the figure of the Printing Zone 3 includes multiple spaced and parallel distributions for printing pair
The main grid string holes 32 for printing main gate line of the secondary grid line hole 31 of grid line and multiple spaced and parallel distributions and outer for printing
The peripheral frame line hole 33 of surrounding edge wire, the pair grid line hole 31 is between adjacent two wefts 22, each main grid string holes 32
It is connected to multiple secondary grid line holes 31, main grid string holes 32 is arranged in a mutually vertical manner with secondary grid line hole 31, each main grid string holes 32
On be provided with the minute pattern 5 that multiple conductive silver pastes can not penetrate, the peripheral setting of frame line hole 33 is in main grid string holes 32 and secondary grid
The surrounding of string holes 31, the shape in peripheral frame line hole 33 are waveform or zigzag.
Wherein, the shape of minute pattern 5 can be a variety of figures such as circle, rectangle, triangle, rectangular, diamond shape, polygon
Shape, the arrangement mode in main grid string holes are the various arrangements mode such as parallel, interval.Fig. 4 show minute pattern be rectangle,
A kind of situation being arranged parallel to each other.
Preferably, the material of the screen frame 1 is aluminium alloy.
Preferably, the material of the warp 21 of the grenadine and weft 22 is stainless steel or nickel-base alloy.
Preferably, the line footpath of the warp 21 of the grenadine or weft 22 is 16mm.
Preferably, the mesh number of the grenadine 2 is 325 mesh.
Preferably, the quantity in secondary grid line hole 31 is 90~130 on the grenadine Printing Zone.
Preferably, the width in any pair grid line hole 31 is 20~35 μm on the grenadine Printing Zone.
Preferably, the spacing in adjacent pair grid line hole 31 is 1.0~2.0mm on the grenadine Printing Zone.
Preferably, the width in any main gate line hole 32 is 0.4~1.5mm on the grenadine Printing Zone.
Preferably, in the main grid string holes gross area of minute pattern and main grid string holes area ratio (i.e. main grid string holes
Hollow out rate) between 25~45%.
The production method of printing screen plate of the present invention is identical compared with technology, is all to stretch screen cloth by certain pulling force
Afterwards, be adhered on screen frame, the latitude and longitude on screen cloth are parallel or vertical with screen frame respectively, then using pretreatment removal grease,
Photoresists coating is carried out after impurity, is solidified through printing down, the pattern that flushing of developing is formed on Printing Zone of the present invention, then again in main grid
The latex of certain figure is coated at string holes.Emulsion plays the role of support in moulding process, can increase ink saturate amount, due to there is cream
The local area of agent is very small, and the slurry of surrounding can fill up the vacancy at this after collapsing, to ensure that electrode main grid line
It is unimpeded.
Experiment is tested using conventional P-type monocrystalline production line below, and the technological process of production are as follows: making herbs into wool → diffusion → is gone
PSG → PECVD → silk-screen printing → sintering → sorting.
160mm × 160mm monocrystalline silicon piece is chosen in experiment, and with a thickness of 200 μm, resistivity is 1-3 Ω with batch silicon wafer 600
Piece forms random pyramid structure on silicon wafer two sides by alkali making herbs into wool first, expands subsequently into subsequent processing phosphorus oxychloride
It dissipates and forms PN junction, polished backside is carried out by chemical liquid and remove edge glass layer, then prepare surface nitrogen with filming equipment
SiClx film is finally randomly divided into three groups each 200 for 600, and same track is selected to be printed, then is sintered through same
Furnace and tester are sintered test, and specific data see the table below shown.Wherein the printing screen plate of test 1 is the present invention without net knot print
Brush halftone, the hollow out rate of main grid string holes are 25%；The printing screen plate of test 2 is the present invention without net knot printing screen plate, main grid string holes
Hollow out rate be 45%；The printing screen plate of test 3 is conventional 22.5 ° of oblique halftones.
The height of 1. cell piece pair grid line of table is wide
| Line width (μm) | Line height (μm) | Depth-width ratio | |
| Test 1 | 46.66 | 18.53 | 39.7% |
| Test 2 | 47.77 | 18.69 | 39.1% |
| Test 3 | 50.84 | 16.36 | 32.2% |
2. electrical performance of cell data of table
As can be seen from the above table, the secondary more conventional halftone of grid line line style printed out using the present invention without net knot printing screen plate
It compares, width is narrower, and thickness is bigger, and depth-width ratio has been significantly improved, so that the short circuit current of cell piece be made to be mentioned
It rises, thus the more conventional halftone of transfer efficiency also increases, using the electricity for the solar battery sheet that screen painting of the present invention obtains
It is more superior to learn performance.
Claims (10)
1. a kind of minute pattern of solar battery positive electrode ties printing screen plate without net, including screen frame and connect be fixed on it is described
Grenadine in screen frame, grenadine are woven by more warp and weft, it is characterised in that: each warp and latitude in the grenadine
Line is provided with Printing Zone and non-printing district on the grenadine, the figure of the Printing Zone includes respectively parallel or perpendicular to screen frame
The secondary grid line holes for printing secondary grid line of multiple spaced and parallel distributions and multiple spaced and parallel distributions for printing main gate line
Main grid string holes and peripheral frame line hole for printing peripheral frame line, the pair grid line hole be located at adjacent two wefts it
Between, each main grid string holes is connected to multiple secondary grid line holes, and main grid string holes is arranged in a mutually vertical manner with secondary grid line hole, the main gate line
The minute pattern that multiple conductive silver pastes can not penetrate is provided on hole, the setting of peripheral frame line hole is in main grid string holes and secondary grid line hole
Surrounding, the shape in peripheral frame line hole is waveform or zigzag.
2. a kind of minute pattern of solar battery positive electrode according to claim 1 ties printing screen plate, feature without net
Be: the material of the screen frame is aluminium alloy.
3. a kind of minute pattern of solar battery positive electrode according to claim 1 ties printing screen plate, feature without net
Be: the material of the warp and weft of the grenadine is stainless steel or nickel-base alloy.
4. a kind of minute pattern of solar battery positive electrode according to claim 1 or 3 ties printing screen plate without net, special
Sign is: the line footpath of the warp of the grenadine or weft is 16mm.
5. a kind of minute pattern of solar battery positive electrode according to claim 1 ties printing screen plate, feature without net
Be: the mesh number of the grenadine is 325 mesh.
6. a kind of minute pattern of solar battery positive electrode according to claim 1 ties printing screen plate, feature without net
Be: the quantity in secondary grid line hole is 90~130 on the grenadine Printing Zone.
7. a kind of minute pattern of solar battery positive electrode according to claim 1 ties printing screen plate, feature without net
Be: the width in any pair grid line hole is 20~35 μm on the grenadine Printing Zone.
8. a kind of minute pattern of solar battery positive electrode according to claim 1 ties printing screen plate, feature without net
Be: the spacing in adjacent pair grid line hole is 1.0~2.0mm on the grenadine Printing Zone.
9. a kind of minute pattern of solar battery positive electrode according to claim 1 ties printing screen plate, feature without net
Be: the width in any main gate line hole is 0.4~1.5mm on the grenadine Printing Zone.
10. a kind of minute pattern of solar battery positive electrode according to claim 1 ties printing screen plate, feature without net
Be: the gross area of minute pattern and the area ratio of main grid string holes are between 25~45% in the main grid string holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710787593.4A CN109421365A (en) | 2017-09-04 | 2017-09-04 | A kind of minute pattern of solar battery positive electrode ties printing screen plate without net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710787593.4A CN109421365A (en) | 2017-09-04 | 2017-09-04 | A kind of minute pattern of solar battery positive electrode ties printing screen plate without net |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109421365A true CN109421365A (en) | 2019-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710787593.4A Pending CN109421365A (en) | 2017-09-04 | 2017-09-04 | A kind of minute pattern of solar battery positive electrode ties printing screen plate without net |
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| CN (1) | CN109421365A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271265A (en) * | 2019-08-06 | 2019-09-24 | 石家庄明远科技有限公司 | A kind of nodeless network version based on stainless steel plate |
| CN110978828A (en) * | 2019-12-31 | 2020-04-10 | 江门市华锐铝基板股份公司 | Screen printing method for flat panel |
| CN111559162A (en) * | 2020-05-25 | 2020-08-21 | 江苏盛矽电子科技有限公司 | Polyimide solar screen plate |
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| CN1090122A (en) * | 1993-01-19 | 1994-07-27 | 江苏曙光光学电子仪器厂 | The compound half tone facture of metal forming and silk screen |
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| CN102717591A (en) * | 2012-03-23 | 2012-10-10 | 昆山允升吉光电科技有限公司 | Silk screen offset |
| CN202782133U (en) * | 2012-03-23 | 2013-03-13 | 昆山允升吉光电科技有限公司 | Silk screen lithographic plate |
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| CN103171263A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Screen board used for printing of positive electrode of crystalline silicon solar cell |
| CN106364140A (en) * | 2016-10-25 | 2017-02-01 | 昆山良品丝印器材有限公司 | Film structure for solar crystalline silicon battery slice and printing screen of film structure |
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| CN1090122A (en) * | 1993-01-19 | 1994-07-27 | 江苏曙光光学电子仪器厂 | The compound half tone facture of metal forming and silk screen |
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| CN106364140A (en) * | 2016-10-25 | 2017-02-01 | 昆山良品丝印器材有限公司 | Film structure for solar crystalline silicon battery slice and printing screen of film structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110271265A (en) * | 2019-08-06 | 2019-09-24 | 石家庄明远科技有限公司 | A kind of nodeless network version based on stainless steel plate |
| CN110978828A (en) * | 2019-12-31 | 2020-04-10 | 江门市华锐铝基板股份公司 | Screen printing method for flat panel |
| CN111559162A (en) * | 2020-05-25 | 2020-08-21 | 江苏盛矽电子科技有限公司 | Polyimide solar screen plate |
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Application publication date: 20190305 |
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