CN103178130A - Electrode of crystalline silicon solar cell - Google Patents
Electrode of crystalline silicon solar cell Download PDFInfo
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- CN103178130A CN103178130A CN2011104392003A CN201110439200A CN103178130A CN 103178130 A CN103178130 A CN 103178130A CN 2011104392003 A CN2011104392003 A CN 2011104392003A CN 201110439200 A CN201110439200 A CN 201110439200A CN 103178130 A CN103178130 A CN 103178130A
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Abstract
The invention discloses an electrode of a crystalline silicon solar cell. The electrode comprises a positive electrode. The positive electrode comprises a positive primary grid line and positive secondary grid lines connected with the positive primary grid line, the positive primary grid line is arranged at the position of the center line of the right side of the solar cell, the positive secondary grid lines are distributed on the right side of the solar cell in parallel at equal intervals, and the middle portions of the positive secondary grid lines are perpendicularly intersected with the positive primary grid line. The positive electrode further comprises border-shaped grid lines which are arranged at the edges of the periphery of the right side of the solar cell and are respectively connected with the positive primary grid line and the positive secondary grid lines. The positive primary grid line is adopted so that the quantity of the positive primary grid line and the negative primary grid line of the solar cell is reduced, further the contact area of the electrode and the solar cell is reduced, the light receiving area of the solar cell surface is enlarged, improvement of current and voltage of the solar cell is facilitated, the efficiency of the solar cell is improved, consumption of electrode slurry is reduced, and cell production cost is reduced.
Description
Technical field
The present invention relates to a kind of electrode of crystal silicon solar energy battery.
Background technology
Crystal silicon solar energy battery is a kind of semiconductor device that luminous energy directly is converted to electric energy, and its inner photo-generated carrier that produces need to be connected with external circuit by outer electrode and electric current could be exported.The electrode of design generally all contains at least two front main grid lines and at least two back side main grid lines at present, and many front main grid lines and back side main grid line have hidden certain solar cell surface area, affected the efficient of solar cell reception light, on the other hand, because the contact area of electrode and solar cell surface is influential to the contact resistance of electrode, many front main grid line is larger with the area that back side main grid line causes electrode to contact with solar cell surface, make Electrodes also larger, be unfavorable for improving the current/voltage of solar cell.
In addition, the making of electrode needs precious metal as electric conducting material, and making many front main grid utmost points and back side main grid polar curve needs more electrocondution slurry, therefore is unfavorable for reducing the manufacturing cost of solar cell.
Summary of the invention
The embodiment of the present invention provides a kind of electrode of crystal silicon solar energy battery, has reduced the quantity of solar battery sheet front main grid line, thereby has reduced the area that front electrode contacts with solar battery sheet.
A kind of electrode of crystal silicon solar energy battery comprises front electrode; Front electrode comprises a front main grid line and the positive secondary grid line that is connected with front main grid line, front main grid line is located at the position of center line in solar battery sheet front, positive secondary grid line is parallel is equally distributed in the solar battery sheet front, and the middle part of positive secondary grid line is vertically intersected on front main grid line; Front electrode also comprises the grid line that is the frame shape of being located at the positive edge of solar battery sheet, the grid line that is the frame shape respectively with front main grid line be connected secondary grid line and be connected.
The embodiment of the present invention adopts a front main grid line to reduce the quantity of solar battery sheet front main grid line and back side main grid line, thereby reduced the area that electrode contacts with solar battery sheet, increase the area of solar battery sheet surface reception light, be conducive to improve battery current voltage.On the other hand, the quantity that reduces solar battery sheet front main grid line and back side main grid line has also reduced the contact resistance of electrode, has improved solar battery efficiency, has reduced the use amount of electrode slurry, has reduced the manufacturing cost of cell piece.
Description of drawings
Fig. 1 is the front electrode distributed architecture schematic diagram of a kind of crystal silicon solar energy battery of the embodiment of the present invention;
Fig. 2 is the backplate distributed architecture schematic diagram of a kind of crystal silicon solar energy battery of the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of electrode of crystal silicon solar energy battery, below is elaborated.
With reference to figure 1, a kind of electrode of crystal silicon solar energy battery comprises front electrode; Front electrode comprises a front main grid line 101 and the positive secondary grid line 102 that is connected with front main grid line 101, front main grid line 101 is located at the position of center line in solar battery sheet front 104, positive secondary grid line 102 is parallel is equally distributed in the solar battery sheet front, and the middle part of positive secondary grid line 102 is vertically intersected on front main grid line 101.Front electrode also comprises the grid line that is the frame shape 103 of being located at the positive edge of solar battery sheet, the grid line 103 that is the frame shape respectively with front main grid line 101 be connected secondary grid line 102 and be connected.
Front main grid line 101 is located at the position of center line in solar battery sheet front, is conducive to positive secondary grid line 102 photo-generated carrier is transferred to front main grid line 101.
The grid line that is the frame shape not only can be used for collecting photo-generated carrier, and it is connected with positive secondary grid line, can prevent that the positive secondary grid line that disconnection that the positive secondary grid line of part and front main grid line cause because of technological reason or Slurry pump causes can't be transferred to front main grid line with the photo-generated carrier of collection.
Preferably, the width of front main grid line 101 is 1.8 millimeters, and the width of positive secondary grid line 102 is 0.1 millimeter.
Preferably, the length of front main grid line 101 is 122 millimeters, and the length of positive secondary grid line 102 is 122 millimeters.
Preferably, the spacing of the secondary grid line 102 of adjacent front surfaces is 2.1 millimeters.
Preferably, the width that is the grid line 103 of frame shape is 0.1 millimeter.
With reference to figure 2, a kind of electrode of crystal silicon solar energy battery also comprises the backplate of being located at solar cell back face 202, and backplate is a back side main grid line 201 of being located at solar cell back face 202 position of center line.
Preferably, back side main grid line 201 width are 3.5 millimeters.
Preferably, back side main grid line 201 length are 122 millimeters.
The front electrode of the general solar battery sheet that adopts comprises two front main grid lines now, and the width of every front main grid line is 1.6 millimeters, and backplate also comprises two back side main grid lines, and the width of every back side main grid line is 3.5 millimeters.Although the width of every front main grid line is little than the present embodiment, but two the width sum of front main grid line is greater than the width of a front main grid line of the present embodiment, article two, the area that covers greater than front main grid line of the present embodiment of the area that covers of front main grid line, the surface that affects solar battery sheet receives light, reduces the formation efficiency of photo-generated carrier.In like manner, article two, the width sum of back side main grid line is greater than the width of a front main grid line of the present embodiment, article two, the area that covers greater than front main grid line of the present embodiment of the area that covers of back side main grid line, the surface that affects solar battery sheet receives light, reduces the formation efficiency of photo-generated carrier.
The present invention can effectively save front electrode electrocondution slurry and the backplate electrocondution slurry of crystal silicon solar energy battery, can effectively improve electrical property, changes the photoelectric conversion efficiency of existing crystal silicon solar energy battery.
Below the performance test results of the present embodiment solar battery sheet sample and existing solar battery sheet sample is compared.Table 1 is the present embodiment solar battery sheet sample electric performance test table as a result, and table 2 is the performance test results table of existing solar battery sheet sample.
Table 1
Table 2
Contrast table 1 and table 2, the operating current that can find out the more existing solar battery sheet of the present embodiment sample increases, and the cell piece power average value is increased to 2.774 watts by 2.750 watts, and conversion efficiency mean value brings up to 17.90% by 17.76%.
The electrode of above a kind of crystal silicon solar energy battery that the embodiment of the present invention is provided is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. the electrode of a crystal silicon solar energy battery, is characterized in that, comprises front electrode; Described front electrode comprises a front main grid line and the positive secondary grid line that is connected with described front main grid line, described front main grid line is located at the position of center line in solar battery sheet front, the secondary grid line in described front is parallel, and to be equally distributed in described solar battery sheet positive, and the middle part of the secondary grid line in described front is vertically intersected on described front main grid line; Described front electrode also comprises the grid line that is the frame shape of being located at the positive edge of solar battery sheet, the described grid line that is the frame shape respectively with described front main grid line be connected the secondary grid line in front and be connected.
2. the electrode of crystal silicon solar energy battery according to claim 1 is characterized in that: the width of described front main grid line is 1.8 millimeters, and the width of the secondary grid line in described front is 0.1 millimeter.
3. the electrode of crystal silicon solar energy battery according to claim 2 is characterized in that: the length of described front main grid line is 122 millimeters, and the length of the secondary grid line in described front is 122 millimeters.
4. the electrode of crystal silicon solar energy battery according to claim 3 is characterized in that: the spacing of the secondary grid line in adjacent described front is 2.1 millimeters.
5. the electrode of crystal silicon solar energy battery according to claim 4 is characterized in that: the described width that is the grid line of frame shape is 0.1 millimeter.
6. the electrode of the described crystal silicon solar energy battery of according to claim 1 to 5 any one is characterized in that: also comprise the backplate of being located at described solar cell back face, described backplate is a back side main grid line of being located at described solar cell back face position of center line.
7. the electrode of crystal silicon solar energy battery according to claim 6 is characterized in that: described back side main grid line width is 3.5 millimeters.
8. the electrode of crystal silicon solar energy battery according to claim 7 is characterized in that: described back side main grid line length is 122 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104392003A CN103178130A (en) | 2011-12-23 | 2011-12-23 | Electrode of crystalline silicon solar cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104392003A CN103178130A (en) | 2011-12-23 | 2011-12-23 | Electrode of crystalline silicon solar cell |
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| CN103178130A true CN103178130A (en) | 2013-06-26 |
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| CN2011104392003A Pending CN103178130A (en) | 2011-12-23 | 2011-12-23 | Electrode of crystalline silicon solar cell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229355A (en) * | 2016-08-31 | 2016-12-14 | 泰州德通电气有限公司 | A kind of polycrystal silicon cell electrode structure |
| CN106981525A (en) * | 2017-03-03 | 2017-07-25 | 浙江爱旭太阳能科技有限公司 | P-type double-sided solar battery and preparation method thereof |
| CN107871788A (en) * | 2016-09-27 | 2018-04-03 | Lg电子株式会社 | Solar cell and the solar panel including solar cell |
| CN110854219A (en) * | 2019-12-24 | 2020-02-28 | 浙江中晶新能源股份有限公司 | Efficient N-type battery piece and preparation method thereof |
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| EP2012362A1 (en) * | 2006-04-14 | 2009-01-07 | Sharp Kabushiki Kaisha | Solar cell, solar cell string and solar cell module |
| CN201616439U (en) * | 2010-03-17 | 2010-10-27 | 常州天合光能有限公司 | Back electrode of polysilicon solar battery |
| CN201956360U (en) * | 2010-11-30 | 2011-08-31 | 奥特斯维能源（太仓）有限公司 | Solar-battery grid-line electrode |
| CN102257642A (en) * | 2008-06-11 | 2011-11-23 | 弗朗霍夫应用科学研究促进协会 | Solar cell and method for the production thereof |
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2011
- 2011-12-23 CN CN2011104392003A patent/CN103178130A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2012362A1 (en) * | 2006-04-14 | 2009-01-07 | Sharp Kabushiki Kaisha | Solar cell, solar cell string and solar cell module |
| CN102257642A (en) * | 2008-06-11 | 2011-11-23 | 弗朗霍夫应用科学研究促进协会 | Solar cell and method for the production thereof |
| CN201616439U (en) * | 2010-03-17 | 2010-10-27 | 常州天合光能有限公司 | Back electrode of polysilicon solar battery |
| CN201956360U (en) * | 2010-11-30 | 2011-08-31 | 奥特斯维能源（太仓）有限公司 | Solar-battery grid-line electrode |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229355A (en) * | 2016-08-31 | 2016-12-14 | 泰州德通电气有限公司 | A kind of polycrystal silicon cell electrode structure |
| CN107871788A (en) * | 2016-09-27 | 2018-04-03 | Lg电子株式会社 | Solar cell and the solar panel including solar cell |
| CN106981525A (en) * | 2017-03-03 | 2017-07-25 | 浙江爱旭太阳能科技有限公司 | P-type double-sided solar battery and preparation method thereof |
| CN110854219A (en) * | 2019-12-24 | 2020-02-28 | 浙江中晶新能源股份有限公司 | Efficient N-type battery piece and preparation method thereof |
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Address after: Shen Gang Town Cheng Road Jiangyin city Jiangsu Province, Wuxi City, No. 1011, 214443 Applicant after: China National Building Materials Group Corporation Jetion Solar (China) Co., Ltd. Address before: Shen Gang Town Cheng Road Jiangyin city Jiangsu Province, Wuxi City, No. 1011, 214443 Applicant before: Jetion Solar(China) Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: JETION TECHNOLOGY CO., LTD. TO: CNBM JETION SOLAR (CHINA) TECHNOLOGY CO., LTD. |
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Application publication date: 20130626 |