CN106449834B - A kind of two-sided PERC solar cell backs face grid line structure - Google Patents
A kind of two-sided PERC solar cell backs face grid line structure Download PDFInfo
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- CN106449834B CN106449834B CN201610876714.8A CN201610876714A CN106449834B CN 106449834 B CN106449834 B CN 106449834B CN 201610876714 A CN201610876714 A CN 201610876714A CN 106449834 B CN106449834 B CN 106449834B
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a kind of two-sided PERC solar cell backs face grid line structure；It includes several columns back electrode and grid line portion, back electrode includes several sub-electrode sections, the symmetrical center line of two adjacent sub- electrode sections is set to A lines, main grid portion is provided between the end of sub-electrode section and adjacent A lines, the symmetrical center line of two adjacent row back electrodes is set to B lines, the intersection point of A lines and B lines is set to C points, and assisted parts is provided between the end of sub-electrode section and adjacent C points；The setting of assisted parts, the point away from sub-electrode section to carry out electric current by assisted parts to collect, and the electric current after collecting can be transmitted directly on back electrode, avoid the problem of being transferred to again on back electrode as intermediary by main grid portion, the two-sided PERC solar cell backs face grid line structure of the present invention, the output current of solar cell module is added, improves the power output of solar cell module.
Description
Technical field
The present invention relates to technical field of solar batteries, more particularly to a kind of two-sided PERC solar cell backs face grid line
Structure.
Background technology
Conventional fossil fuel is increasingly depleted, and in all sustainable energies, solar energy is undoubtedly a kind of most clear
One of clean, most universal and most potential alternative energy source.In all solar cells, silicon solar cell is most widely used
One of general solar cell, this is due to that silicon materials have extremely abundant reserves, while silicon solar cell in the earth's crust
Compared to other kinds of solar cell, there are excellent electric property and mechanical performance.
PERC batteries (Passivated emitter rear contact solar cells), i.e. passivation emitter are carried on the back
Face contact solar cell.In the prior art, two-sided PERC solar cell backs face grid line structure includes back electrode (silver-colored grid
Line) and local back electric field (alum gate line).When solar cell module works, after caused electric current is collected by alum gate line in silicon materials
Converge on silver-colored back electrode, flow into next solar battery sheet via welding afterwards.As shown in figure 4, in existing technology
Back electrode quantity is the main grid quantity of cell piece, and back electrode is shaped as strip or the strip of segmentation, and aluminum back electric field is shaped as
Strip.Existing strip back electrode, the consumption of its silver paste is big, and cost is higher, using segmentation strip back electrode when, due to welding
Good contact can not be formed with aluminium, it is after welding, relatively difficult away from the electric current collection at silver-colored back electrode, cause component EL to send out
It is black, while go here and there and hinder increase.
The content of the invention
It is an object of the invention to provide a kind of two-sided PERC solar cell backs face grid line structure, the sun is which increased
The output current of energy battery component, improve the power output of solar cell module.
To use following technical scheme up to this purpose, the present invention：
A kind of two-sided PERC solar cell backs face grid line structure, including several columns back electrode and grid line portion, back of the body electricity
Pole includes several along the interconnection spaced sub-electrode section in direction, in same row back electrode, adjacent two sub- electrode sections
Symmetrical center line is set to A lines, and A lines and back electrode are perpendicular, and main grid is provided between the end of sub-electrode section and adjacent A lines
Portion, adjacent two sub- electrode sections are electrically connected by two main grid portions between the two, two adjacent row back electrodes it is symmetrical in
Heart line is set to B lines, and B lines are parallel with back electrode, and the intersection point of A lines and B lines is set to C points, the end of sub-electrode section and adjacent C points
Between be provided with assisted parts.The setting of assisted parts so that the point away from sub-electrode section can carry out electric current by assisted parts and collect,
And the electric current after collecting can be transmitted directly on back electrode, avoid by main grid portion and to be transferred to again on back electrode as intermediary
Problem.
Interconnection direction refers to the direction that battery electrically connects in battery strings.
Preferably, several columns back electrode is parallel to each other.It is further preferred that back electrode and two-sided PERC solar battery sheets
One of side it is parallel.
Preferably, identical length of several columns back electrode etc..
Wherein, from the end of sub-electrode section to C, the direction of point is gradually reduced the width of assisted parts.
Wherein, the center line in main grid portion and the center line of back electrode are parallel to each other.
Preferably, main grid portion is provided with the area of coverage overlapped mutually with sub-electrode section, and height of the area of coverage along interconnection direction is
0.05~5mm.It is further preferred that height of the area of coverage along interconnection direction is 0.1~2mm.
Wherein, main grid portion is wide linear structure.
Wherein, the width in main grid portion is gradually reduced from the end of sub-electrode section to the direction of A lines.Main grid portion is away from sub-electrode
The current density of one end of section is smaller, and current density of the main grid portion close to one end of sub-electrode section is larger, the width in main grid portion from
Direction from from the end of sub-electrode section to A lines is gradually reduced, i.e., the width in main grid portion matches with current density, solves electric current
The problem of transmission, the phenomenon for avoiding EL from blacking.
Wherein, the width of sub-electrode section is less than or equal to the width in main grid portion.
Wherein, secondary grid portion is provided between two main grid portions at sub-electrode section both ends, secondary grid portion is located at the outer of sub-electrode section
Side.
Wherein, the width of sub-electrode section is more than the width in main grid portion, and the sub-electrode section sideline vertical with interconnection direction is prolonged
The intersection point in the sideline in the outside of long line and adjacent assisted parts is set to D points, the width of sub-electrode section be less than two adjacent D points it
Between length.
Wherein, the width of sub-electrode section is less than the Breadth Maximum in main grid portion.
Preferably, the line width in main grid portion is 2mm~10mm.It is further preferred that the line width in main grid portion is 2.5mm~5mm.
Preferably, line width of the main grid portion close to one end of sub-electrode section is 3mm~10mm, and main grid portion is away from sub-electrode section
The line width of one end is 0.05mm~5mm.It is further preferred that main grid portion close to one end of sub-electrode section line width for 3mm~
6mm, the line width of the one end of main grid portion away from sub-electrode section is 0.1mm~3mm.
Preferably, the line width in grid line portion is 0.05mm~0.5mm.It is further preferred that the line width in grid line portion be 0.1mm~
0.4mm。
Preferably, line width of the assisted parts close to one end of sub-electrode section is 2mm~10mm, and assisted parts is away from sub-electrode section
The line width of one end is 0.05mm~1mm.It is further preferred that assisted parts close to one end of sub-electrode section line width for 3mm~
5mm, the line width of the one end of assisted parts away from sub-electrode section is 0.1mm~0.6mm.
Preferably, the gross area of back electrode is the 0.1%~3% of the back side gross area of two-sided PERC solar battery sheets.
It is further preferred that the gross area of back electrode is the 0.2%~2% of the back side gross area of two-sided PERC solar battery sheets.
Wherein, back electrode is back of the body silver, and main grid portion, assisted parts and grid line portion are back of the body aluminium.
Beneficial effects of the present invention：A kind of two-sided PERC solar cell backs face grid line structure, including several columns back of the body electricity
Pole and grid line portion, back electrode includes several along the interconnection spaced sub-electrode section in direction, adjacent in same row back electrode
The symmetrical center lines of two sub- electrode sections be set to A lines, A lines and back electrode are perpendicular, the end of sub-electrode section and adjacent A lines
Between be provided with main grid portion, two main grid portions that adjacent two sub- electrode sections pass through between the two electrically connect, two adjacent row
The symmetrical center line of back electrode is set to B lines, and B lines are parallel with back electrode, and the intersection point of A lines and B lines is set to C points, sub-electrode section
Assisted parts is provided between end and adjacent C points.The setting of assisted parts so that the point away from sub-electrode section can pass through auxiliary
Portion carries out electric current and collected, and the electric current after collecting can be transmitted directly on back electrode, avoid by main grid portion as intermediary again
The problem of being transferred on back electrode, two-sided PERC solar cell backs face grid line structure of the invention, adds solar-electricity
The output current of pond component, improve the power output of solar cell module.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention one.
Fig. 2 is the structural representation of embodiments of the invention two.
Fig. 3 is the structural representation of embodiments of the invention three.
Fig. 4 is the structural representation of the comparative example one of the present invention.
Reference is as follows：
1- grid lines portion；2- sub-electrode sections；3- main grids portion；The 31- areas of coverage；4- assisted parts；5- pair grid portion.
Embodiment
With reference to Fig. 1 technical scheme is further illustrated to Fig. 4 and by specific embodiment.
Embodiment one
As shown in figure 1, a kind of two-sided PERC solar cell backs face grid line structure, Fig. 1 is showing for unit cell
It is intended to, including several columns back electrode and grid line portion 1, back electrode include several along the interconnection spaced sub-electrode section in direction
2, in same row back electrode, the symmetrical center line of adjacent two sub- electrode sections 2 is set to A lines, and A lines and back electrode are perpendicular, son
Main grid portion 3 is provided between the end of electrode section 2 and adjacent A lines, adjacent two sub- electrode sections 2 pass through two between the two
Individual main grid portion 3 electrically connects, and the symmetrical center line of two adjacent row back electrodes is set to B lines, and B lines are parallel with back electrode, A lines and B
The intersection point of line is set to C points, and assisted parts 4 is provided between the end of sub-electrode section 2 and adjacent C points.
In the present embodiment, several columns back electrode is parallel to each other, and back electrode and two-sided PERC solar battery sheets are wherein
One side is parallel.In other embodiments, several columns back electrode can also shift, can not also be with the two-sided PERC sun
The side of energy cell piece is parallel.
In the present embodiment, identical length of several columns back electrode etc..In other embodiments, can also be arranged as required to not
With the back electrode of length.
In the present embodiment, from the end of sub-electrode section 2 to C, the direction of point is gradually reduced the width of assisted parts 4.
In the present embodiment, the center line in main grid portion 3 and the center line of back electrode are parallel to each other.
In the present embodiment, main grid portion 3 is provided with the area of coverage 31 overlapped mutually with sub-electrode section 2, and the area of coverage 31 is along interconnection side
To height be 1mm.In other embodiments, height of the area of coverage 31 along interconnection direction can be selected as needed.For example, covering
Height of the area 31 along interconnection direction can be 0.05mm, 0.1mm, 0.5mm, 1.5mm, 2mm, 3mm, 4mm or 5mm etc..
In the present embodiment, main grid portion 3 is wide linear structure.The width of sub-electrode section 2 is less than or equal to the width in main grid portion 3
Spend, be provided with secondary grid portion 5 between two main grid portions 3 at the both ends of sub-electrode section 2, secondary grid portion 5 is located at the outside of sub-electrode section 2.
In the present embodiment, the line width in main grid portion 3 is 3mm.In other embodiments, main grid portion 3 can be selected as needed
Line width.For example, the line width in main grid portion 3 can be 2mm, 2.5mm, 4mm, 5mm, 8mm or 10mm etc..
In the present embodiment, the line width in grid line portion 1 is 0.3mm.In other embodiments, grid line portion 1 can be selected as needed
Line width.For example, the line width in grid line portion 1 can be 0.05mm, 0.1mm, 0.2mm, 0.4mm or 0.5mm etc..
In the present embodiment, line width of the assisted parts 4 close to one end of sub-electrode section 2 is 3mm, and assisted parts 4 is away from sub-electrode section 2
The line width of one end be 0.3mm.In other embodiments, assisted parts 4 can be selected close as needed and away from sub-electrode section 2
The line width of one end.For example, assisted parts 4 close to one end of sub-electrode section 2 line width can be 2mm, 4mm, 5mm, 6mm, 8mm or
10mm；The line width of the one end of assisted parts 4 away from sub-electrode section 2 can be 0.05mm, 0.1mm, 0.2mm, 0.4mm, 0.6mm,
0.8mm or 1mm etc..
In the present embodiment, the gross area of back electrode is the 1% of the back side gross area of two-sided PERC solar battery sheets.At it
In his embodiment, can select as needed back electrode the gross area account for two-sided PERC solar battery sheets the back side gross area hundred
Divide ratio.For example, the gross area of back electrode can be two-sided PERC solar battery sheets the back side gross area 0.1%, 0.2%,
0.5%th, 2% or 3% etc..
In the present embodiment, back electrode is back of the body silver, and main grid portion 3, assisted parts 4 and grid line portion 1 are back of the body aluminium.In other embodiment
In, back electrode, main grid portion 3 and the grid line portion 1 of other materials can be selected as needed.
Embodiment two
As shown in Fig. 2 a kind of two-sided PERC solar cell backs face grid line structure, Fig. 2 is showing for unit cell
It is intended to, including several columns back electrode and grid line portion 1, back electrode include several along the interconnection spaced sub-electrode section in direction
2, in same row back electrode, the symmetrical center line of adjacent two sub- electrode sections 2 is set to A lines, and A lines and back electrode are perpendicular, son
Main grid portion 3 is provided between the end of electrode section 2 and adjacent A lines, adjacent two sub- electrode sections 2 pass through two between the two
Individual main grid portion 3 electrically connects, and the symmetrical center line of two adjacent row back electrodes is set to B lines, and B lines are parallel with back electrode, A lines and B
The intersection point of line is set to C points, and assisted parts 4 is provided between the end of sub-electrode section 2 and adjacent C points.
In the present embodiment, several columns back electrode is parallel to each other, and back electrode and two-sided PERC solar battery sheets are wherein
One side is parallel.In other embodiments, several columns back electrode can also shift, can not also be with the two-sided PERC sun
The side of energy cell piece is parallel.
In the present embodiment, identical length of several columns back electrode etc..In other embodiments, can also be arranged as required to not
With the back electrode of length.
In the present embodiment, from the end of sub-electrode section 2 to C, the direction of point is gradually reduced the width of assisted parts 4.
In the present embodiment, the center line in main grid portion 3 and the center line of back electrode are parallel to each other.
In the present embodiment, main grid portion 3 is provided with the area of coverage 31 overlapped mutually with sub-electrode section 2, and the area of coverage 31 is along interconnection side
To height be 1mm.In other embodiments, height of the area of coverage 31 along interconnection direction can be selected as needed.For example, covering
Height of the area 31 along interconnection direction can be 0.05mm, 0.1mm, 0.5mm, 1.5mm, 2mm, 3mm, 4mm or 5mm etc..
In the present embodiment, main grid portion 3 is wide linear structure.The width of sub-electrode section 2 is more than the width in main grid portion 3,
The extended line and the intersection point in the sideline in the outside of adjacent assisted parts 4 in the sideline vertical with interconnection direction of sub-electrode section 2 are set to D
Point, the width of sub-electrode section 2 are less than the length between two adjacent D points.
In the present embodiment, the line width in main grid portion 3 is 2mm~10mm.In the present embodiment, the line width in main grid portion 3 is 3mm.
In other embodiment, the line width in main grid portion 3 can be selected as needed.For example, the line width in main grid portion 3 can be 2mm, 2.5mm,
4mm, 5mm, 8mm or 10mm etc..
In the present embodiment, the line width in grid line portion 1 is 0.3mm.In other embodiments, grid line portion 1 can be selected as needed
Line width.For example, the line width in grid line portion 1 can be 0.05mm, 0.1mm, 0.2mm, 0.4mm or 0.5mm etc..
In the present embodiment, line width of the assisted parts 4 close to one end of sub-electrode section 2 is 3mm, and assisted parts 4 is away from sub-electrode section 2
The line width of one end be 0.3mm.In other embodiments, assisted parts 4 can be selected close as needed and away from sub-electrode section 2
The line width of one end.For example, assisted parts 4 close to one end of sub-electrode section 2 line width can be 2mm, 4mm, 5mm, 6mm, 8mm or
10mm；The line width of the one end of assisted parts 4 away from sub-electrode section 2 can be 0.05mm, 0.1mm, 0.2mm, 0.4mm, 0.6mm,
0.8mm or 1mm etc..
In the present embodiment, the gross area of back electrode is the 1.5% of the back side gross area of two-sided PERC solar battery sheets.
In other embodiment, the gross area of back electrode can be selected to account for the back side gross area of two-sided PERC solar battery sheets as needed
Percentage.For example, the gross area of back electrode can be two-sided PERC solar battery sheets the back side gross area 0.1%,
0.2%th, 0.5%, 2% or 3% etc..
In the present embodiment, back electrode is back of the body silver, and main grid portion 3, assisted parts 4 and grid line portion 1 are back of the body aluminium.In other embodiment
In, back electrode, main grid portion 3 and the grid line portion 1 of other materials can be selected as needed.
Embodiment three
As shown in figure 3, a kind of two-sided PERC solar cell backs face grid line structure, Fig. 3 is showing for unit cell
It is intended to, including several columns back electrode and grid line portion 1, back electrode include several along the interconnection spaced sub-electrode section in direction
2, in same row back electrode, the symmetrical center line of adjacent two sub- electrode sections 2 is set to A lines, and A lines and back electrode are perpendicular, son
Main grid portion 3 is provided between the end of electrode section 2 and adjacent A lines, adjacent two sub- electrode sections 2 pass through two between the two
Individual main grid portion 3 electrically connects, and the symmetrical center line of two adjacent row back electrodes is set to B lines, and B lines are parallel with back electrode, A lines and B
The intersection point of line is set to C points, and assisted parts 4 is provided between the end of sub-electrode section 2 and adjacent C points.
In the present embodiment, several columns back electrode is parallel to each other, and back electrode and two-sided PERC solar battery sheets are wherein
One side is parallel.In other embodiments, several columns back electrode can also shift, can not also be with the two-sided PERC sun
The side of energy cell piece is parallel.
In the present embodiment, identical length of several columns back electrode etc..In other embodiments, can also be arranged as required to not
With the back electrode of length.
In the present embodiment, from the end of sub-electrode section 2 to C, the direction of point is gradually reduced the width of assisted parts 4.
In the present embodiment, the center line in main grid portion 3 and the center line of back electrode are parallel to each other.
In the present embodiment, main grid portion 3 is provided with the area of coverage 31 overlapped mutually with sub-electrode section 2, and the area of coverage 31 is along interconnection side
To height be 1mm.In other embodiments, height of the area of coverage 31 along interconnection direction can be selected as needed.For example, covering
Height of the area 31 along interconnection direction can be 0.05mm, 0.1mm, 0.5mm, 1.5mm, 2mm, 3mm, 4mm or 5mm etc..
In the present embodiment, the width in main grid portion 3 is gradually reduced from the end of sub-electrode section 2 to the direction of A lines.Sub-electrode section
2 width is less than the Breadth Maximum in main grid portion 3, and secondary grid portion 5, secondary grid are provided between two main grid portions 3 at the both ends of sub-electrode section 2
Portion 5 is located at the outside of sub-electrode section 2.
In the present embodiment, line width of the main grid portion 3 close to one end of sub-electrode section 2 is 5mm, and main grid portion 3 is away from sub-electrode section 2
The line width of one end be 2mm.In other embodiments, the one of the close and remote sub-electrode section 2 in main grid portion 3 can be selected as needed
The line width at end.For example, line width of the main grid portion 3 close to one end of sub-electrode section 2 can be 3mm, 4mm, 6mm, 8mm or 10mm etc.,
The line width of the one end of main grid portion 3 away from sub-electrode section 2 can be 0.05mm, 0.1mm, 1mm, 3mm, 4mm or 5mm etc..
In the present embodiment, the line width in grid line portion 1 is 0.3mm.In other embodiments, grid line portion 1 can be selected as needed
Line width.For example, the line width in grid line portion 1 can be 0.05mm, 0.1mm, 0.2mm, 0.4mm or 0.5mm etc..
In the present embodiment, line width of the assisted parts 4 close to one end of sub-electrode section 2 is 3mm, and assisted parts 4 is away from sub-electrode section 2
The line width of one end be 0.3mm.In other embodiments, assisted parts 4 can be selected close as needed and away from sub-electrode section 2
The line width of one end.For example, assisted parts 4 close to one end of sub-electrode section 2 line width can be 2mm, 4mm, 5mm, 6mm, 8mm or
10mm；The line width of the one end of assisted parts 4 away from sub-electrode section 2 can be 0.05mm, 0.1mm, 0.2mm, 0.4mm, 0.6mm,
0.8mm or 1mm etc..
In the present embodiment, the gross area of back electrode is the 1% of the back side gross area of two-sided PERC solar battery sheets.At it
In his embodiment, can select as needed back electrode the gross area account for two-sided PERC solar battery sheets the back side gross area hundred
Divide ratio.For example, the gross area of back electrode can be two-sided PERC solar battery sheets the back side gross area 0.1%, 0.2%,
0.5%th, 2% or 3% etc..
In the present embodiment, back electrode is back of the body silver, and main grid portion 3, assisted parts 4 and grid line portion 1 are back of the body aluminium.In other embodiment
In, back electrode, main grid portion 3 and the grid line portion 1 of other materials can be selected as needed.
Comparative example one
As shown in figure 4, being two-sided PERC solar cell backs face grid line structure of the prior art, Fig. 4 is a list
The schematic diagram of bit location.Comparative example one differs only in embodiment one, and comparative example one is not provided with the auxiliary in embodiment one
Portion 4, other are identical with embodiment one.
The power output of the power output of three embodiments of the present invention and comparative example one is subjected to contrast test, test knot
Fruit is as shown in table 1.
Table 1
| Pmax(W) | |
| Embodiment one | 298.5 |
| Embodiment two | 297.5 |
| Embodiment three | 299.0 |
| Comparative example one | 296.0 |
As shown in Table 1, compared with existing two-sided PERC solar battery sheets, two-sided PERC solar cells of the invention
The power output of piece is obviously improved.
Above content is only presently preferred embodiments of the present invention, for one of ordinary skill in the art, according to the present invention's
Thought, there will be changes, this specification content should not be construed as to the present invention in specific embodiments and applications
Limitation.
Claims (14)
1. a kind of two-sided PERC solar cell backs face grid line structure, including several columns back electrode and grid line portion (1), it is special
Sign is that the back electrode includes several along the interconnection spaced sub-electrode section (2) in direction, back electrode described in same row
In, the symmetrical center line of adjacent two sub-electrode sections (2) is set to A lines, and the A lines and the back electrode are perpendicular, institute
State and main grid portion (3) is provided between the end of sub-electrode section (2) and the adjacent A lines, adjacent two sub-electrode sections
(2) electrically connected by two main grid portions (3) between the two, the symmetrical center line of the adjacent two row back electrodes is set to
B lines, the B lines are parallel with the back electrode, and the intersection point of the A lines and the B lines is set to C points, the sub-electrode section (2)
Assisted parts (4) is provided between end and the adjacent C points.
2. two-sided PERC solar cell backs face grid line structure according to claim 1, it is characterised in that the auxiliary
The width in portion (4) is gradually reduced from the end of the sub-electrode section (2) to the direction of the C points.
3. two-sided PERC solar cell backs face grid line structure according to claim 1, it is characterised in that the main grid
The center line of the center line and the back electrode in portion (3) is parallel to each other.
4. two-sided PERC solar cell backs face grid line structure according to claim 1, it is characterised in that the main grid
Portion (3) is provided with the area of coverage (31) overlapped mutually with the sub-electrode section (2), height of the area of coverage (31) along interconnection direction
For 0.05~5mm.
5. the two-sided PERC solar cell backs face grid line structure according to any one of Claims 1-4, its feature exist
In the main grid portion (3) is wide linear structure.
6. the two-sided PERC solar cell backs face grid line structure according to any one of Claims 1-4, its feature exist
In the width of the main grid portion (3) is gradually reduced from the end of the sub-electrode section (2) to the direction of the A lines.
7. two-sided PERC solar cell backs face grid line structure according to claim 5, it is characterised in that the son electricity
The width of pole section (2) is less than or equal to the width of the main grid portion (3).
8. two-sided PERC solar cell backs face grid line structure according to claim 7, it is characterised in that the son electricity
Secondary grid portion (5) is provided between two main grid portions (3) at pole section (2) both ends, the secondary grid portion (5) is located at the sub-electrode
The outside of section (2).
9. two-sided PERC solar cell backs face grid line structure according to claim 5, it is characterised in that the son electricity
The width of pole section (2) is more than the width of the main grid portion (3), and the sub-electrode section (2) sideline vertical with interconnection direction is prolonged
Long line and the intersection point in the sideline in the outside of the adjacent assisted parts (4) are set to D points, and the width of the sub-electrode section (2) is less than
Length between two adjacent D points.
10. two-sided PERC solar cell backs face grid line structure according to claim 6, it is characterised in that the son
The width of electrode section (2) is less than the Breadth Maximum of the main grid portion (3).
11. two-sided PERC solar cell backs face grid line structure according to claim 5, it is characterised in that the master
The line width in grid portion (3) is 2mm~10mm.
12. two-sided PERC solar cell backs face grid line structure according to claim 6, it is characterised in that the master
Line width of the grid portion (3) close to one end of the sub-electrode section (2) is 3mm~10mm, and the main grid portion (3) is away from the sub-electrode
The line width of one end of section (2) is 0.05mm~0.5mm.
13. two-sided PERC solar cell backs face grid line structure according to claim 1, it is characterised in that described auxiliary
It is 2mm~10mm to help line width of the portion (4) close to one end of the sub-electrode section (2), and the assisted parts (4) is away from the sub-electrode
The line segment of one end of section (2) is 0.05mm~1mm.
14. two-sided PERC solar cell backs face grid line structure according to claim 1, it is characterised in that the back of the body
Electrode is back of the body silver, and the main grid portion (3), the assisted parts (4) and the grid line portion (1) are back of the body aluminium.
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| CN106887475B (en) * | 2017-03-03 | 2019-07-05 | 广东爱旭科技股份有限公司 | P-type PERC double-sided solar battery and its component, system and preparation method |
| CN106887476B (en) * | 2017-03-03 | 2020-07-10 | 广东爱康太阳能科技有限公司 | P-type PERC double-sided solar cell, and assembly, system and preparation method thereof |
| CN106876496B (en) * | 2017-03-03 | 2019-07-05 | 广东爱旭科技股份有限公司 | P-type PERC double-sided solar battery and its component, system and preparation method |
| CN107425080B (en) * | 2017-03-03 | 2019-11-15 | 广东爱康太阳能科技有限公司 | P-type PERC double-sided solar battery and its component, system and preparation method |
| CN110277460A (en) * | 2019-07-16 | 2019-09-24 | 无锡鼎森茂科技有限公司 | Solar battery sheet and photovoltaic module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202977433U (en) * | 2012-12-12 | 2013-06-05 | 英利能源（中国）有限公司 | Rear main grid line of solar battery piece and solar battery piece |
| CN204991723U (en) * | 2015-08-18 | 2016-01-20 | 广东爱康太阳能科技有限公司 | Solar cell electrode |
| CN206194768U (en) * | 2016-10-08 | 2017-05-24 | 苏州阿特斯阳光电力科技有限公司 | Two -sided PERC solar wafer back bars line knot constructs |
-
2016
- 2016-10-08 CN CN201610876714.8A patent/CN106449834B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202977433U (en) * | 2012-12-12 | 2013-06-05 | 英利能源（中国）有限公司 | Rear main grid line of solar battery piece and solar battery piece |
| CN204991723U (en) * | 2015-08-18 | 2016-01-20 | 广东爱康太阳能科技有限公司 | Solar cell electrode |
| CN206194768U (en) * | 2016-10-08 | 2017-05-24 | 苏州阿特斯阳光电力科技有限公司 | Two -sided PERC solar wafer back bars line knot constructs |
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Effective date of registration: 20190220 Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Co-patentee after: Changshu Canadian Solar Inc. Patentee after: Suzhou Canadian Solar Inc. Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee before: Suzhou Canadian Solar Inc. |