CN202076274U - Four-'hui' type positive electrode structure for solar battery - Google Patents
Four-'hui' type positive electrode structure for solar battery Download PDFInfo
- Publication number
- CN202076274U CN202076274U CN2011201819996U CN201120181999U CN202076274U CN 202076274 U CN202076274 U CN 202076274U CN 2011201819996 U CN2011201819996 U CN 2011201819996U CN 201120181999 U CN201120181999 U CN 201120181999U CN 202076274 U CN202076274 U CN 202076274U
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- grid
- positive electrode
- hui
- type positive
- solar battery
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- 238000000034 method Methods 0.000 claims description 9
- 241000283080 Proboscidea <mammal> Species 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007639 printing Methods 0.000 abstract description 5
- 239000002002 slurry Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002800 charge carrier Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model is realized in such a way that: a four-'hui' type positive electrode structure for a solar battery comprises auxiliary grids on the solar battery and main grids connected with the auxiliary grids. The four-'hui' type positive electrode structure for the solar battery is characterized in that a wire mesh is divided into four areas so as to form a shape like the Chinese character 'tian', one auxiliary grid in a shape like the Chinese character 'hui' is arranged on each area, and one main grid is arranged on the auxiliary grids of a pair of adjacent areas; moreover, the main grid passes through the respective center positions of the two areas; one main grid is also arranged on the auxiliary grids of the other pair of areas; and moreover, the main grid passes through the respective center positions of the two areas. The four-'hui' type positive electrode structure for the solar battery has the advantages that the structure is simple, the collection of current is optimized, the loss brought because of the internal resistance, the contact resistance and light shading is reduced, the conversion efficiency of the battery is enhanced, the production requirement of manufacturing a printing electrode is greatly lowered, and the influence caused by grid breaking is obviously lowered; and moreover, equipment and a slurry material do not need to be upgraded.
Description
Technical field
The utility model relates to the front electrode structure that solar cell uses, particularly a kind of four times type positive electrode structures that are used for solar cell are to use screen printing technique that silver electrode is printed on solar cell surface special four times type structure graphs portrayal back on web plate of design.
Background technology
Solar power generation more and more is subject to people's attention and has obtained to use widely owing to have characteristics such as pollution-free, noiselessness, environmental protection be renewable.When being mapped in the battery, solar irradiation produced electron-hole pair, because the effect electronics of pn knot internal electric field and hole have produced electrical potential difference at last to the top and the bottom motion of battery respectively.
For the charge carrier of collecting and drawing the solar cell conversion just need be in the battery surface connection electrode.Method now commonly used is that the method with silk screen printing is imprinted on battery front surface and back to metal electrode sizing by certain graphic style, makes it be cured as electrode and and battery formation ohmic contact by high temperature sintering then.Have certain loss when electrode is collected in the charge carrier process, this loss mainly comes from positive electrode and blocks (being the shading loss), lateral resistance loss and contact resistance loss or the like for sunlight.And improvement electrode, particularly positive electrode can be optimized electric current collection, reduce because the loss that internal resistance, contact resistance and shading bring.Traditional positive electrode structure is to be transferred to main grid line perpendicular to secondary grid by many parallel secondary grid line collected currents, welding can be welded on the main grid in use subsequently electric current is drawn.The shading area of this kind positive electrode structure is bigger, and the shading loss that thereupon produces can reduce the conversion efficiency of battery also than higher.Simultaneously higher for print request, in case thereby producing the grid line crack conditions just has the subregion to influence battery conversion efficiency by collected current.In view of the foregoing, therefore need new electrode design to improve these shortcomings.
The utility model content
The utility model purpose is to overcome the deficiencies in the prior art, and a kind of novel positive electrode structure that is used for solar cell is provided.
The utility model is achieved in that a kind of four times type positive electrode structures that are used for solar cell, comprise: the secondary grid on the solar cell, the main grid that is connected with secondary grid, it is characterized in that: described silk screen is divided into 4 zones, form a sphere of movements for the elephants shape, all be provided with the secondary grid of " returning " font on each zone, the secondary grid of a pair of adjacent areas are provided with described main grid and this center separately, two zones of this main grid process of straight line type therein, also are provided with described main grid and this center separately, two zones of this main grid process of straight line type on the secondary grid in other a pair of zone.
Described secondary grid are arranged in " returning " font and are made up of the secondary grid line of the identical annular concentric of many strips.
Described annular secondary grid line is square secondary grid line.
The utility model advantage is: simple in structure, optimize electric current collection, reduce because the loss that internal resistance, contact resistance and shading bring, improve battery conversion efficiency, reduce greatly and make the production requirement of printing electrode, reduce the influence that disconnected grid cause significantly, and need not equipment and slurry are upgraded.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Shown in Fig. 1 is a kind of novel positive electrode structure that is used for solar cell, is different from the parallel secondary grid structure of traditional positive electrode, is to use four times secondary grid lines of type to collect battery current and be transferred to 2 parallel main grids.It comprises: the secondary grid of the silk screen half tone on the solar cell, the main grid that is connected with secondary grid, it is characterized in that: described silk screen 1 is divided into 4 zones 2, form a sphere of movements for the elephants shape, all be provided with the secondary grid 3 of " returning " font on each zone, the secondary grid of a pair of adjacent areas are provided with described main grid 4 and this center separately, two zones of this main grid process of straight line type therein, also are provided with described main grid and this center separately, two zones of this main grid process of straight line type on the secondary grid in other a pair of zone.
Owing to use this four to return the secondary grid structure that type connects, in case taking place, disconnected gate current can transfer to main grid by All other routes, can prevent effectively that the efficient that disconnected grid cause from reducing.Experiment showed, that its grid line fracture performance of solar cell of using traditional positive electrode and the utility model positive electrode structure has notable difference.In test, find, use the battery component of traditional positive electrode structure to have the battery sheet about 30% to influence the collection of electric current because of grid line ruptures, though and the battery component that uses this positive electrode structure also can produce a spot of disconnected grid, but electric current collection does not produce any influence, promptly avoids resolving the loss in efficiency that grid bring substantially.
And positive electrode structure shading area only is about 90% of traditional positive electrode structure, and littler shading area means littler shading loss, makes that the conversion efficiency of battery can be improved further.
Described secondary grid are arranged in " returning " font and are made up of the secondary grid line of the identical annular concentric of many strips.
Described annular secondary grid line is square secondary grid line.
Manufacturing process is as follows: the special colloid of coating on silk screen, steps such as drying, exposure, development are portrayed the positive electrode structure on the silk screen half tone.Use printing equipment, with metal paste according to the graphic printing on the silk screen half tone in solar cell surface.Use agglomerating plant that metal paste is sintered into metal electrode and and solar cell formation ohmic contact.In the later stage use, welding is welded on the main grid line of battery positive electrode, thereby electric current is drawn use.
Below only expressed execution mode of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model patent scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
The utility model advantage is: simple in structure, optimize electric current collection, reduce because the loss that internal resistance, contact resistance and shading bring, improve battery conversion efficiency, reduce greatly and make the production requirement of printing electrode, reduce the influence that disconnected grid cause significantly, and need not equipment and slurry are upgraded.
Claims (3)
1. four times type positive electrode structures that are used for solar cell, comprise: the secondary grid on the solar cell, the main grid that is connected with secondary grid, it is characterized in that: described silk screen is divided into 4 zones, form a sphere of movements for the elephants shape, all be provided with the secondary grid of " returning " font on each zone, the secondary grid of a pair of adjacent areas are provided with a main grid and this center separately, two zones of this main grid process therein, also are provided with a main grid and this main grid through this center separately, two zones on the secondary grid in other a pair of zone.
2. a kind of four times type positive electrode structures that are used for solar cell according to claim 1 is characterized in that: described secondary grid are arranged in " returning " font and are made up of the secondary grid line of the identical annular concentric of many strips.
3. a kind of four times type positive electrode structures that are used for solar cell according to claim 2, it is characterized in that: described annular secondary grid line is square secondary grid line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201819996U CN202076274U (en) | 2011-06-01 | 2011-06-01 | Four-'hui' type positive electrode structure for solar battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201819996U CN202076274U (en) | 2011-06-01 | 2011-06-01 | Four-'hui' type positive electrode structure for solar battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202076274U true CN202076274U (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201819996U Expired - Lifetime CN202076274U (en) | 2011-06-01 | 2011-06-01 | Four-'hui' type positive electrode structure for solar battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202076274U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299203A (en) * | 2011-08-25 | 2011-12-28 | 浙江正泰太阳能科技有限公司 | Solar energy cell and solar energy cell right side electrode design method |
| CN103000708A (en) * | 2012-09-27 | 2013-03-27 | 奥特斯维能源（太仓）有限公司 | Annular positive electrode |
| CN103158342A (en) * | 2013-03-05 | 2013-06-19 | 天津英利新能源有限公司 | Silk net for printing solar cell slice |
| CN103171254A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Solar energy battery sheet positive electrode screen plate |
| CN103171253A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Matching metal solar screen for multi-time printing and use method thereof |
| CN103231584A (en) * | 2013-04-24 | 2013-08-07 | 无锡帝科电子材料科技有限公司 | Rectangular loop positive electrode mesh plate of crystalline silicon solar cell |
| WO2014051889A1 (en) * | 2012-09-28 | 2014-04-03 | Dow Global Technologies Llc | Photo-voltaic device having improved shading degradation resistance |
| CN103904143A (en) * | 2014-03-31 | 2014-07-02 | 衡水英利新能源有限公司 | Solar cell with grid lines shaped like Chinese character 'shen' |
-
2011
- 2011-06-01 CN CN2011201819996U patent/CN202076274U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299203A (en) * | 2011-08-25 | 2011-12-28 | 浙江正泰太阳能科技有限公司 | Solar energy cell and solar energy cell right side electrode design method |
| CN103171254A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Solar energy battery sheet positive electrode screen plate |
| CN103171253A (en) * | 2011-12-23 | 2013-06-26 | 昆山允升吉光电科技有限公司 | Matching metal solar screen for multi-time printing and use method thereof |
| CN103171254B (en) * | 2011-12-23 | 2016-04-27 | 昆山允升吉光电科技有限公司 | A kind of solar battery sheet positive electrode screen plate |
| CN103000708A (en) * | 2012-09-27 | 2013-03-27 | 奥特斯维能源（太仓）有限公司 | Annular positive electrode |
| WO2014051889A1 (en) * | 2012-09-28 | 2014-04-03 | Dow Global Technologies Llc | Photo-voltaic device having improved shading degradation resistance |
| CN103158342A (en) * | 2013-03-05 | 2013-06-19 | 天津英利新能源有限公司 | Silk net for printing solar cell slice |
| CN103158342B (en) * | 2013-03-05 | 2015-07-15 | 天津英利新能源有限公司 | Silk net for printing solar cell slice |
| CN103231584A (en) * | 2013-04-24 | 2013-08-07 | 无锡帝科电子材料科技有限公司 | Rectangular loop positive electrode mesh plate of crystalline silicon solar cell |
| CN103904143A (en) * | 2014-03-31 | 2014-07-02 | 衡水英利新能源有限公司 | Solar cell with grid lines shaped like Chinese character 'shen' |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20130104 Granted publication date: 20111214 |
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| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20130704 Granted publication date: 20111214 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20130704 Granted publication date: 20111214 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20140104 Granted publication date: 20111214 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20140104 Granted publication date: 20111214 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20140704 Granted publication date: 20111214 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| C56 | Change in the name or address of the patentee |
Owner name: GCL SYSTEM INTEGRATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI CHAORI SOLAR ENERGY TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201406 Shanghai city Fengxian District Jianghai Economic Zone Patentee after: Assist prosperous integrated Science and Technology Co., Ltd. Address before: 201406, Shanghai, Fengxian District South Town Wang Yang Economic Zone, flag Road, No. 738 Patentee before: Shanghai Chaori Solar Energy Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |