CN203733811U - Battery piece with auxiliary main grid lines mutually parallel with main grid lines - Google Patents
Battery piece with auxiliary main grid lines mutually parallel with main grid lines Download PDFInfo
- Publication number
- CN203733811U CN203733811U CN201420006781.0U CN201420006781U CN203733811U CN 203733811 U CN203733811 U CN 203733811U CN 201420006781 U CN201420006781 U CN 201420006781U CN 203733811 U CN203733811 U CN 203733811U
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- China
- Prior art keywords
- main grid
- grid line
- grid lines
- parallel
- layer
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- Expired - Lifetime
Links
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 18
- 239000004020 conductor Substances 0.000 claims description 9
- 238000007650 screen-printing Methods 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 210000001142 back Anatomy 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- 229920005591 polysilicon Polymers 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Photovoltaic Devices (AREA)
Abstract
The utility model relates to a battery piece with auxiliary main grid lines mutually parallel with main grid lines. The battery piece comprises a substrate layer, an antireflection film layer and a positive electrode layer which are disposed on the front surface of the substrate layer, and a backboard layer and a back electrode layer which are disposed on the back surface of the substrate layer; the positive electrode layer comprises the main grid lines and thin grid lines which are arranged vertical to each other; a plurality of auxiliary main grid lines parallel with the main grid lines are arranged between two adjacent main grid lines; and each main grid line is provided with a plurality of main grid line sections with hollow structures. According to the battery piece with the auxiliary main grid lines mutually parallel with the main grid lines, series resistance can be effectively reduced, short circuit current can be effectively increased, and the power loss is lowered for a battery adopting the structure; and meanwhile, the battery power loss caused by the fact that current cannot be gathered because a broken grid is formed by the poor battery piece printing is reduced.
Description
Technical field
The utility model relates to the field of new forms of energy, especially a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line.
Background technology
The world today, solar energy obtains applying more and more widely as a kind of clean energy resource, in solar energy generation technology field, solar battery sheet is important parts wherein, main grid line radical on cell piece is for battery power output size important, existing radical is generally two or three, can increase sunlight receiving area, but power output diminishes in the time of two; In the time of three, power output becomes large, but illuminating area reduces, and all cuts both ways; But the increase along with factors such as solar battery sheet volumes, three main grid lines can not meet the demand of power output, moreover, the grid line using on solar battery sheet is all to adopt silver-colored pulp material, this material occupies very large benefit cost ratio in the production process of whole cell piece, and arranging of grid line also affect the light-receiving area of cell piece, and traditional grid line series resistance of arranging is large, power loss is large, and power output is little.
Summary of the invention
The technical problems to be solved in the utility model is: in order to overcome the problem of above-mentioned middle existence, provide a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line, its project organization rationally, can reduce power loss.
The utility model solves the technical scheme that its technical problem adopts: a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line, comprise substrate layer, be located at antireflection film layer, the positive electrode layer on substrate layer front and be located at backsheet layer and the dorsum electrode layer at the substrate layer back side, described positive electrode layer comprises mutual vertically disposed main grid line and thin grid line, between adjacent two main grid lines, be provided with the some secondary main grid lines that are parallel to main grid line, on every main grid line, there is the main grid line segment of several engraved structures.
In order to reduce costs increase light-receiving area, the end of described main grid line is the taper of 30 ° of cone angles
The material of described substrate layer is P type polysilicon.
The material of described antireflection film layer is silicon nitride, and silicon nitride is a kind of superhard material, and itself has lubrification, and wear-resistant, is atomic crystal; Anti-oxidant during high temperature.And it can also resist thermal shock, in air, be heated to more than 1000 ℃, sharply cooling sharply heating again, can be not cracked yet.
The material of described positive electrode layer is silk screen printing thick film conductor silver.
The material of described backsheet layer is silk screen printing thick film conductor aluminium.
The material of described dorsum electrode layer is silk screen printing thick film conductor silver or silver-colored aluminium.
The beneficial effects of the utility model are: described a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line, adopt the battery of this kind of design, and can effectively reduce series resistance, promote short circuit current, reduce power loss; Reduce because cell piece prints after the disconnected grid of bad formation, electric current can not collect the loss that causes the power of battery simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is a kind of front view with the cell piece of the secondary main grid line being arranged in parallel with main grid line described in the utility model;
Fig. 2 is a kind of vertical view with the cell piece of the secondary main grid line being arranged in parallel with main grid line described in the utility model.
Accompanying drawing acceptance of the bid note is described below: 1, substrate layer, 2, antireflection film layer, 3, positive electrode layer, 4, backsheet layer, 5, dorsum electrode layer, 6, main grid line, 61, main grid line segment, 7, thin grid line, 8, secondary main grid line.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model is only described in a schematic way, so it only show the formation relevant with the utility model.
A kind of cell piece with the secondary main grid line being arranged in parallel with main grid line as depicted in figs. 1 and 2, comprise that material is the substrate layer 1 of P type polysilicon, be located at the antireflection film layer 2 that the material on substrate layer 1 front is silicon nitride, material is that the positive electrode layer 3 of silk screen printing thick film conductor silver and the material that is located at substrate layer 1 back side are that backsheet layer 4 and the material of silk screen printing thick film conductor aluminium is the dorsum electrode layer 5 of silk screen printing thick film conductor silver or silver-colored aluminium, positive electrode layer 3 comprises some mutual vertically disposed main grid lines 6 and thin grid line 7, between adjacent two main grid lines 6, be provided with the some secondary main grid lines 8 that are parallel to main grid line 6, the main grid line segment 61 on every main grid line 6 with several engraved structures, the end of main grid line 6 is the taper of 30 ° of cone angles.
A kind of cell piece with the secondary main grid line being arranged in parallel with main grid line of the present utility model, metal grid lines is responsible for the photogenerated current in cell body to guide to outside batteries, it is foundation that the optimal design of solar cell grid line be take battery total-power loss minimum, grid line structure designs well, will make the series resistance of battery minimum, thereby make that power loss is minimum, power output is maximum.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (7)
1. a cell piece with the secondary main grid line being arranged in parallel with main grid line, it is characterized in that: comprise substrate layer (1), be located at the antireflection film layer (2) on substrate layer (1) front, positive electrode layer (3) and be located at backsheet layer (4) and the dorsum electrode layer (5) at substrate layer (1) back side, described positive electrode layer (3) comprises mutual vertically disposed main grid line (6) and thin grid line (7), between adjacent two main grid lines (6), be provided with the some secondary main grid lines (8) that are parallel to main grid line (6), the main grid line segment (61) on every main grid line (6) with several engraved structures.
2. a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line according to claim 1, is characterized in that: the end of described main grid line (6) is the taper of 30 ° of cone angles
3. a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line according to claim 1, is characterized in that: the material of described substrate layer (1) is P type polysilicon.
4. a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line according to claim 1, is characterized in that: the material of described antireflection film layer (2) is silicon nitride.
5. a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line according to claim 1, is characterized in that: the material of described positive electrode layer (3) is silk screen printing thick film conductor silver.
6. a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line according to claim 1, is characterized in that: the material of described backsheet layer (4) is silk screen printing thick film conductor aluminium.
7. a kind of cell piece with the secondary main grid line being arranged in parallel with main grid line according to claim 1, is characterized in that: the material of described dorsum electrode layer (5) is silk screen printing thick film conductor silver or silver-colored aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006781.0U CN203733811U (en) | 2014-01-06 | 2014-01-06 | Battery piece with auxiliary main grid lines mutually parallel with main grid lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420006781.0U CN203733811U (en) | 2014-01-06 | 2014-01-06 | Battery piece with auxiliary main grid lines mutually parallel with main grid lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733811U true CN203733811U (en) | 2014-07-23 |
Family
ID=51203859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420006781.0U Expired - Lifetime CN203733811U (en) | 2014-01-06 | 2014-01-06 | Battery piece with auxiliary main grid lines mutually parallel with main grid lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733811U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887478A (en) * | 2017-03-03 | 2017-06-23 | 广东爱康太阳能科技有限公司 | P-type PERC double-sided solar batteries, component and system |
| CN106981529A (en) * | 2017-03-03 | 2017-07-25 | 浙江爱旭太阳能科技有限公司 | P-type PERC double-sided solar batteries, component and system |
| CN106981524A (en) * | 2017-03-03 | 2017-07-25 | 浙江爱旭太阳能科技有限公司 | The back electrode structure and battery of p-type PERC double-sided solar batteries |
| CN107039544A (en) * | 2017-03-03 | 2017-08-11 | 广东爱康太阳能科技有限公司 | P-type PERC double-sided solar batteries and preparation method thereof, component and system |
-
2014
- 2014-01-06 CN CN201420006781.0U patent/CN203733811U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887478A (en) * | 2017-03-03 | 2017-06-23 | 广东爱康太阳能科技有限公司 | P-type PERC double-sided solar batteries, component and system |
| CN106981529A (en) * | 2017-03-03 | 2017-07-25 | 浙江爱旭太阳能科技有限公司 | P-type PERC double-sided solar batteries, component and system |
| CN106981524A (en) * | 2017-03-03 | 2017-07-25 | 浙江爱旭太阳能科技有限公司 | The back electrode structure and battery of p-type PERC double-sided solar batteries |
| CN107039544A (en) * | 2017-03-03 | 2017-08-11 | 广东爱康太阳能科技有限公司 | P-type PERC double-sided solar batteries and preparation method thereof, component and system |
| CN106887478B (en) * | 2017-03-03 | 2019-07-19 | 广东爱旭科技股份有限公司 | P-type PERC double-sided solar battery, component and system |
| CN106981529B (en) * | 2017-03-03 | 2019-08-16 | 浙江爱旭太阳能科技有限公司 | P-type PERC double-sided solar battery, component and system |
| CN107039544B (en) * | 2017-03-03 | 2020-08-04 | 广东爱康太阳能科技有限公司 | P-type PERC double-sided solar cell and preparation method, assembly and system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |