CN204809230U - MWT silicon solar cell front electrode - Google Patents

MWT silicon solar cell front electrode Download PDF

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Publication number
CN204809230U
CN204809230U CN201520527578.2U CN201520527578U CN204809230U CN 204809230 U CN204809230 U CN 204809230U CN 201520527578 U CN201520527578 U CN 201520527578U CN 204809230 U CN204809230 U CN 204809230U
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China
Prior art keywords
grid line
square
electrode
solar cell
pattern
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Application number
CN201520527578.2U
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Chinese (zh)
Inventor
李质磊
王波
路忠林
盛雯婷
张凤鸣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Sunport Power Corp Ltd
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NANJING RITUO PHOTOVOLTAIC TECHNOLOGY Co Ltd
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Priority to CN201520527578.2U priority Critical patent/CN204809230U/en
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Abstract

The utility model discloses a MWT silicon solar cell front electrode, battery openly are equipped with the hole of 55 arrays, and hole evenly distributed forms the front electrode, and every hole corresponds a cruciform pattern that uses its grid line that be the center to form, correspond a time font pattern that is enclosed by the grid line from top to bottom about or between adjacent two holes, returning the font pattern and being the interior square of a plurality of big or small imbalances and the pattern of an outer square constitution, interior square encloses by the grid line with outer square: outer square wherein two be two adjacent holes to the angular vertex, every cruciform pattern corresponds 2 grid lines, and a summit of interior square is located the grid line, and every grid line is falld into the n equal portions by the summit of interior square and outer square, n=2 (interior square number + 1). The utility model discloses the front electrode does not have the main grid line, and the shading area is little and silver -colored thick liquid consumption is less, can improve MWT silicon solar cell's conversion efficiency and the manufacturing cost who reduces production like this.

Description

A kind of MWT silicon solar cell front electrode
Technical field
The utility model relates to a kind of MWT silicon solar cell front electrode, belongs to electrode of solar battery technical field.
Background technology
At present, solar cell is the device by photoelectric effect, light energy conversion being become electric energy.The electric energy produced to make silicon solar cell can export, and needs on battery, make positive and negative two electrodes.Carry out collection photogenerated current at front electrode, and the front electrode of conventional solar battery sheet exists main gate line, so shading-area is large, and silver slurry consumption is larger.Because certain shading-area affects the conversion efficiency of solar cell, and silver slurry is expensive, causes the manufacturing cost of battery higher.
Utility model content
Utility model object: there is the situations such as shading-area is large, silver slurry consumption is large for current conventional silicon solar cell front electrode, thus affect the electrical properties such as the conversion efficiency of silicon solar cell, affect the manufacturing cost of silicon solar cell equally.The utility model provides a kind of MWT silicon solar cell front electrode.
Technical scheme: a kind of MWT silicon solar cell front electrode, MWT silicon solar cell is provided with the hole of 5*5 array, hole is uniformly distributed, form front electrode, the cruciform pattern that the corresponding grid line centered by it of each hole is formed, a corresponding three-back-shaped pattern surrounded by grid line up and down or between the adjacent two circular cavities in left and right; Described three-back-shaped pattern is the pattern of the outer square composition of the unequal interior square of multiple size and, and interior square and outer square surround by grid line: outer foursquare wherein two be two adjacent holes to angular vertex; Corresponding 2 grid lines of each cruciform pattern, an interior foursquare summit is positioned on grid line, and every bar grid line is divided into n equal portions by interior square and outer foursquare summit, square number+1 in n=2*().
The total number of described interior square is 5, and every bar grid line of cruciform pattern is divided into 12 equal portions by interior square and outer foursquare summit.
The pattern that grid line between the hole and battery edge at MWT silicon solar cell edge is formed is 1/2nd three-back-shaped patterns, the grid line of all 1/2nd three-back-shaped patterns and all three-back-shaped patterns forms front electrode figure, and the distance between described adjacent two circular cavities is 30.8mm; Outmost turns hole is 15.4mm to the ragged edge distance of front electrode figure.
MWT silicon solar cell is that the energy collected in front by laser drill is transferred to cell backside through battery, to reduce shading-area to reach the object improving conversion efficiency.MWT silicon solar cell front electrode does not have main gate line, and shading-area is little and silver-colored slurry consumption is less, can improve the conversion efficiency of MWT silicon solar cell like this and reduce the manufacturing cost of producing.
Beneficial effect: the utility model compares conventional silicon solar cell front electrode, has the following advantages:
(1) shading-area is little.
(2) silver slurry consumption is low.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model embodiment;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the rearview of the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, following embodiment should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
As Figure 1-3, MWT silicon solar cell is provided with the hole 1 of 5*5 array, hole 1 is uniformly distributed, form front electrode, the cruciform pattern that the corresponding grid line centered by it of each hole 1 is formed, a corresponding three-back-shaped pattern be made up of grid line up and down or between the adjacent two circular cavities 1 in left and right; Three-back-shaped pattern is the pattern of 5 unequal interior squares of size and an outer square composition, interior square and outer square surround by grid line: outer foursquare wherein two be two adjacent holes to angular vertex, corresponding 2 grid lines of each cruciform pattern, an interior foursquare summit is positioned on grid line; The total number of interior square is 5, and every bar grid line of cruciform pattern is divided into 12 equal portions by interior square and outer foursquare summit.
The pattern that grid line between the hole 1 and battery edge at MWT silicon solar cell edge is formed is 1/2nd three-back-shaped patterns, and the grid line of all 1/2nd three-back-shaped patterns and all three-back-shaped patterns forms front electrode figure; The yardstick of cell piece can be arranged according to actual needs.Distance between adjacent two circular cavities 1 is 30.8mm; The ragged edge distance of outmost turns hole 1 to front electrode figure is generally 15.4mm, and the yardstick of cell piece is different, and the ragged edge distance of outmost turns hole 1 to front electrode figure is also different.
The front photogenerated current that MWT silicon solar cell front electrode in the utility model is collected is transferred to the cell piece back side by the hole on cell piece.MWT silicon solar cell front electrode does not have main gate line, and shading-area is little and silver-colored slurry consumption is less, can improve the conversion efficiency of MWT silicon solar cell like this and reduce the manufacturing cost of producing.
The maximum feature of this utility model for being 5*5 hole at front electrode, " returning " herringbone pattern of the square grid line composition that each hole is corresponding.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, when not departing from spirit and scope of the present utility model, done various conversion or modification, all belong to category of the present utility model.

Claims (3)

1. a MWT silicon solar cell front electrode, it is characterized in that: MWT silicon solar cell is provided with the hole of 5*5 array, hole is uniformly distributed, form front electrode, the cruciform pattern that the corresponding grid line centered by it of each hole is formed, a corresponding three-back-shaped pattern surrounded by grid line up and down or between the adjacent two circular cavities in left and right; Described three-back-shaped pattern is the pattern of the outer square composition of the unequal interior square of multiple size and, and interior square and outer square surround by grid line: outer foursquare wherein two be two adjacent holes to angular vertex; Corresponding 2 grid lines of each cruciform pattern, an interior foursquare summit is positioned on grid line, and every bar grid line is divided into n equal portions by interior square and outer foursquare summit, square number+1 in n=2*().
2. MWT silicon solar cell front electrode as claimed in claim 1, it is characterized in that: the total number of described interior square is 5, every bar grid line of cruciform pattern is divided into 12 equal portions by interior square and outer foursquare summit.
3. MWT silicon solar cell front electrode as claimed in claim 1 or 2, it is characterized in that: the pattern that the grid line between the hole and battery edge at MWT silicon solar cell edge is formed is 1/2nd three-back-shaped patterns, the grid line of all 1/2nd three-back-shaped patterns and all three-back-shaped patterns forms front electrode figure, and the distance between described adjacent two circular cavities is 30.8mm; Outmost turns hole is 15.4mm to the ragged edge distance of front electrode figure.
CN201520527578.2U 2015-07-20 2015-07-20 MWT silicon solar cell front electrode Active CN204809230U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520527578.2U CN204809230U (en) 2015-07-20 2015-07-20 MWT silicon solar cell front electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520527578.2U CN204809230U (en) 2015-07-20 2015-07-20 MWT silicon solar cell front electrode

Publications (1)

Publication Number Publication Date
CN204809230U true CN204809230U (en) 2015-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520527578.2U Active CN204809230U (en) 2015-07-20 2015-07-20 MWT silicon solar cell front electrode

Country Status (1)

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CN (1) CN204809230U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107369727A (en) * 2017-06-26 2017-11-21 中节能太阳能科技(镇江)有限公司 A kind of crystal silicon solar batteries piece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107369727A (en) * 2017-06-26 2017-11-21 中节能太阳能科技(镇江)有限公司 A kind of crystal silicon solar batteries piece
CN107369727B (en) * 2017-06-26 2018-12-25 中节能太阳能科技(镇江)有限公司 A kind of crystal silicon solar batteries piece

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CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 210000, No. 18, step road, Pukou Economic Development Zone, Nanjing, Jiangsu

Patentee after: Nanjing day care PV Polytron Technologies Inc

Address before: 210000, No. 18, step road, Pukou Economic Development Zone, Nanjing, Jiangsu

Patentee before: Nanjing Rituo Photovoltaic Technology Co., Ltd.

CP03 Change of name, title or address
CP03 Change of name, title or address

Address after: 214028 Xishi Road, Xinwu District, Nanjing City, Jiangsu Province, 20

Patentee after: Jiangsu Rituo Photovoltaic Technology Co., Ltd.

Address before: No. 18 Buyue Road, Pukou Economic Development Zone, Nanjing City, Jiangsu Province, 210000

Patentee before: Nanjing day care PV Polytron Technologies Inc