CN207938625U - A kind of double-sided solar battery component - Google Patents
A kind of double-sided solar battery component Download PDFInfo
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- CN207938625U CN207938625U CN201820230441.4U CN201820230441U CN207938625U CN 207938625 U CN207938625 U CN 207938625U CN 201820230441 U CN201820230441 U CN 201820230441U CN 207938625 U CN207938625 U CN 207938625U
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- cell piece
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a kind of double-sided solar battery components, including：Two transparent glass plates；It is arranged between two glass plates, the battery lamella being formed by connecting by multiple cell piece groups；Wherein, cell piece group includes the first cell piece and the second cell piece, first cell piece and the second cell back face are fitted and connected, the front of first cell piece and the front of the second cell piece are fitted and connected with two glass plates respectively, and first is provided with conductive sheet between cell piece and the second cell piece, first cell piece backplate is identical with the second cell piece backplate and is connected in parallel by conductive sheet, and the first cell piece front electrode and the second cell piece front electrode are identical and be connected in parallel.Double-sided solar battery component in the utility model on the basis of improving the output power of entire solar cell module there is production cost, the more stable advantage of working performance to be more advantageous to the application and popularization of solar cell module.
Description
Technical field
The utility model is related to technical field of solar, more particularly to a kind of double-sided solar battery component.
Background technology
Solar cell is also known as " solar chip " or " photocell ", is a kind of photoelectricity using the sunlight direct generation of electricity
Wafer.As long as it is satisfied the illumination condition of certain illumination conditions, moment output voltage and can in the loop generate
Electric current.
Solar cell is the device for directly luminous energy being converted to by photoelectric effect or photochemical effect electric energy.But
The solar cell module that current solar battery technology manufacture obtains, output power is often with the area of component at just
Than, even if being the increase in the output power of solar cell module unit area, it is often also required to higher manufacturing cost,
It is unfavorable for the application and popularization of solar battery sheet.
Utility model content
The purpose of this utility model is to provide a kind of double-sided solar battery component, solves solar cell module unit
The output power of area, and the problem that production cost is high are conducive to using and promoting for solar cell.
In order to solve the above technical problems, the utility model provides a kind of double-sided solar battery component, including：
Two transparent glass plates；It is arranged between two glass plates, the electricity being formed by connecting by multiple cell piece groups
Pond lamella；Wherein, the cell piece group includes the first cell piece and the second cell piece, first cell piece and second electricity
The pond piece back side is fitted and connected, and the front of first cell piece and the front of second cell piece are pasted with two glass plates respectively
Connection is closed, and is provided with conductive sheet between first cell piece and second cell piece, first cell piece back side electricity
Pole is identical with the second cell piece backplate and is connected in parallel by the conductive sheet, the first cell piece front electrode and
Two cell piece front electrodes are identical and are connected in parallel.
Wherein, first cell piece and second cell piece are the cell piece with P-type silicon substrate.
Wherein, first cell piece and second cell piece are p-type PERC single crystal battery pieces.
Wherein, first cell piece is p-type PERC single crystal battery pieces, and second cell piece is p-type polysilicon battery
Piece.
Wherein, it is connected in series with by welding between each cell piece group.
Wherein, the conductive sheet is any one conduction in aluminium conductive sheet, tin plating aluminium conductive sheet or tin plating copper current-conducting piece
Piece.
Wherein, the conductive sheet edge extends to the outside edges of first cell piece and second cell piece, and
It is connected with the welding.
Wherein, it is fixedly connected by conducting resinl between the conductive sheet and the welding.
Double-sided solar battery component provided by the utility model, two surfaces above and below battery lamella are respectively provided with can be saturating
The glass plate of light makes the front and back of battery lamella that can receive illumination, at the same time, in battery lamella also include by
As soon as two cell piece back sides, which fit, is superimposed as the cell piece group of entirety, the front of a cell piece in two cell pieces
It can be used as the front of cell piece group, and the back side of the front of another cell piece as cell piece group, then for each battery
For piece group, the front and back of each cell piece group can convert light energy into electricity in the case where meeting certain illumination condition
Can, in other words, the battery component in the utility model has the function of two-sided reception illumination and converting electrical energy.
In compared with the existing technology for various double-sided solar battery components, the double-sided solar electricity in the utility model
Pond component is the cell piece group for being overlapped by two cell pieces and being constituted, and cost is lower, and production technology is more simple, same with this
When, additionally it is possible to it avoids when block double-side cell piece is due to the two-sided heating problem for receiving illumination and generating.
Therefore, the double-sided solar battery component in the utility model, in the output for improving entire solar cell module
On the basis of power, there is lower production cost, and cell piece fever can be largely avoided to influence cell piece
The problem of normal work, is more advantageous to the application and popularization of solar cell module.
Description of the drawings
For the clearer technical solution for illustrating the utility model embodiment or the prior art, below will to embodiment or
Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
Some embodiments of the utility model, for those of ordinary skill in the art, without creative efforts,
Other drawings may also be obtained based on these drawings.
Fig. 1 is the part section structural representation for the double-sided solar battery component that the utility model embodiment provides.
Specific implementation mode
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.Obviously, described embodiment is only the utility model part
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
As shown in FIG. 1, FIG. 1 is the part section structures for the double-sided solar battery component that the utility model embodiment provides
Schematic diagram, the double-sided solar battery component may include：
Two transparent glass plates 1.For conventional solar cell module, usually in the front setting of battery component
Backboard is arranged in glass plate 1 and the back side.Since using double-side cell, battery component tow sides are equal in the utility model
It needs to receive illumination, therefore the tow sides of battery component can be all made of glass plate 1.
It is additionally provided with battery lamella between two glass plates 1, wherein the battery lamella is that have two-sided reception illumination simultaneously
The multiple cell piece groups 2 for converting light energy into electric energy are connected in sequence.
Each cell piece group 2 includes the first cell piece 3 and the second cell piece 4, the first cell piece 3 and the second cell piece 4
The back side is fitted and connected, and the front of the first cell piece 3 and the front of the second cell piece 4 are fitted and connected with two glass plates 1 respectively.
As shown in Figure 1, the component in Fig. 1 in each dotted line frame indicates a battery component.For convenience of description, with electricity
The front of pond component is upper, and the back side of battery component illustrates under being.The front of the first cell piece 3 can be so fitted in
On the glass plate 1 of the top and front of the second cell piece 4 is fitted on the glass plate 1 of lower section.
And the first cell piece 3 is connected with the back side of the second cell piece 4 by conductive sheet 5, and the first cell piece 3 and
The back side of two cell pieces 4 is provided with identical electrode, is anode or is cathode, and the first cell piece 3 and the second cell piece 4
Front be provided with identical electrode, and it is all opposite with backplate.So, the back side of the first cell piece 3 and the second cell piece 4
Electrode can be connected in parallel by conductive sheet 5, and the front electrode of the first cell piece 3 and the second cell piece 4 is also connected in parallel,
Specifically, can be connected by the welding 6 being connected with the front main grid of the first cell piece 3 and the second cell piece 4.
As described above, each cell piece group 2 as one can be with the two-sided cell piece group 2 for receiving illumination, by multiple electricity
Pond piece group 2 is sequentially connected enough battery lamellas at battery component, then the front and back of battery component just can receive
Electric energy is converted light energy under to certain illumination condition.
Because of the double-sided solar battery component in the utility model, light can be absorbed on the positive and negative surface of battery component
According to intensity, compared with the existing technology in single side battery component for, to sunlight have higher utilization rate, and with compared with
High output power.
And compared with the existing technology in Double-sided battery pack, the cell piece front and back of usually each monolithic is all provided with
It is equipped with doped layer, and can receive illumination and convert light energy into electric energy, although such cell piece carries to a certain extent
The high output power of battery component unit area, but its cost manufactured is very high, it can not be in various occasions
It is widely applied and promotes.In addition, due to the tow sides of each cell piece be required to receive illumination, entire cell piece it is positive and negative
The more heat of Surface absorption causes the temperature of cell piece to increase, and electric transformation of energy is converted light energy into reduce cell piece
The problem of rate.
And each cell piece group 2 is only overlap to can be realized two common single side cell pieces pair in the utility model
The function of face power generation, and the manufacturing cost of two single side cell pieces will be far below the production cost of single slice two-sided cell piece,
Although also, the battery component in the utility model and two-sided reception illumination, be substantially still each cell piece only
There is front to receive illumination, this largely reduces each cell piece group 2 and receives illumination and raised temperature so that battery
Component has more preferable more stable working performance.
In addition, middle battery component front and back is in the utility model and the front of single side cell piece is having the same outer
It sees, therefore the battery component in the utility model has aesthetic effect.
In conclusion using the double-sided solar battery component in the utility model, on the basis with high-output power
On, there is lower production cost and more stable working performance.
Based on above-described embodiment, in order to further reduce the production cost of double-sided solar battery component, in this practicality
In novel another specific embodiment, can include further：
First cell piece 3 and the second cell piece 4 are the cell piece with P-type silicon substrate.Because using P-type silicon as system
The substrate of standby single side cell piece, is more easily implemented, production cost is lower in production technology.
Further, p-type PERC single crystal battery pieces specifically may be used for the first cell piece 3 and the second cell piece 4.
PERC battery technologies, i.e. passivation emitter and back side battery technology are the acquisition solar cells researched and developed in recent years
A kind of relatively high manufacture of solar cells manufacturing technology of working efficiency.And the working efficiency of PERC single crystal battery pieces can be up to
21% or more, the working efficiency of polycrystalline cell piece is then between 17%-18%, therefore the working efficiency of PERC single crystal battery pieces is wanted
It is apparently higher than the working efficiency of polycrystalline cell piece.
In addition, using P-type silicon substrate bearing cell piece, the production cost of cell piece can be reduced.Therefore, the utility model
The middle working efficiency that entire battery component can be largely improved using p-type PERC single crystal batteries piece, while also one
Determine to reduce production cost in degree.
The first cell piece 3 and the second cell piece 4 in certain the utility model also not only only have above-mentioned a kind of optional
Scheme.The illumination that can be received relative to the front of battery in view of the intensity of illumination that the back side of battery component can receive
Intensity wants weak, and in order to further reduce the production cost of entire battery component, P PERC single crystal battery piece conducts may be used
First cell piece 3, and use the lower p-type polysilicon cell piece of production cost as the second cell piece 4.Although relative to by
Two cell pieces 4 also use the technical solution of p-type PERC single crystal battery pieces to compare, the battery component work of the scheme acquisition of the present embodiment
It decreases as efficiency, but can largely reduce the manufacturing cost of battery component, and can also avoid battery
The problem of temperature increases.Different cell pieces can be selected as the first electricity according to the needs of application scenarios in practical applications
Pond piece 3 and the second cell piece 4 no longer repeat this one by one in the utility model.
Based on above-mentioned any embodiment, it is contemplated that be in parallel between the first cell piece 3 and the second cell piece 4, this is one
Determine to will increase the electric current of battery component in degree, in actual application, on the basis of realizing maximum output power, most
It is good all to control output current and output voltage in a certain range.Therefore in the another specific embodiment of the utility model
In, can include further：
It will be connected in series with by welding 6 between each battery pack.So output current of battery component and each
The output current of cell piece group 2 is identical.
Further, for the conductive sheet 5 of 3 backplate of the first cell piece and 4 backplate of the second cell piece in parallel, tool
Body, any one conductive sheet in aluminium conductive sheet, tin plating aluminium conductive sheet or tin plating copper current-conducting piece may be used, in order in maximum
Reduce the thickness of entire battery component in degree, conductive sheet 5 is too thick without making, as long as can ensure normal power-up.
It is further to note that the conductive sheet 5 in the utility model is that area is thin not less than entire cell piece area
Chip architecture, rather than the strip structure similar to welding 6 is used, this can increase the first cell piece 3 and the to the full extent
The contact area of the back side main grid and conductive sheet 5 of two cell pieces 4 reduces the resistance of electron-transport, and then reduces battery component
Internal loss.
Further, in order to by the electrode at 4 back side of 3 back side of the first cell piece and the second cell piece and other external cell pieces
5 edge of conductive sheet, can be extended to the outside edges of first cell piece 3 and second cell piece 4 by 2 circuit communications of group
And it is connected with the welding 6.In other words the area of conductive sheet 5 is larger than the first cell piece 3 and the second cell piece 4
Area so that the edge of conductive sheet 5 can be connected directly with welding 6.
Further, conducting resinl may be used for the connection between welding 6 and conductive sheet 5 to be fixedly connected, can also adopts
It is connected with the mode of low-temperature welding, to being not especially limited in this utility model.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with it is other
The difference of embodiment, just to refer each other for same or similar part between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is referring to method part
Explanation.
Double-sided solar battery component provided by the utility model is described in detail above.It is used herein
Specific case is expounded the principles of the present invention and embodiment, and the explanation of above example is only intended to help to manage
Solve the method and its core concept of the utility model.It should be pointed out that for those skilled in the art, not
Under the premise of being detached from the utility model principle, several improvements and modifications can be made to this utility model, these improve and repair
Decorations are also fallen into the protection domain of the utility model claims.
Claims (8)
1. a kind of double-sided solar battery component, which is characterized in that including：Two transparent glass plates；Setting is described in two
Between glass plate, the battery lamella that is formed by connecting by multiple cell piece groups；
Wherein, the cell piece group includes the first cell piece and the second cell piece, first cell piece and second battery
The piece back side is fitted and connected, and the front of first cell piece and the front of second cell piece are bonded with two glass plates respectively
Connection, and conductive sheet is provided between first cell piece and second cell piece, the first cell piece backplate
It is identical with the second cell piece backplate and be connected in parallel by the conductive sheet, the first cell piece front electrode and second
Cell piece front electrode is identical and is connected in parallel.
2. battery component according to claim 1, which is characterized in that first cell piece and second cell piece are equal
For the cell piece with P-type silicon substrate.
3. battery component according to claim 2, which is characterized in that first cell piece and second cell piece are equal
For p-type PERC single crystal battery pieces.
4. battery component according to claim 2, which is characterized in that first cell piece is p-type PERC single crystal batteries
Piece, second cell piece are p-type polysilicon cell piece.
5. battery component according to any one of claims 1 to 4, which is characterized in that lead between each cell piece group
Welding is crossed to be connected in series with.
6. battery component according to claim 5, which is characterized in that the conductive sheet is aluminium conductive sheet, tin plating aluminium conduction
Any one conductive sheet in piece or tin plating copper current-conducting piece.
7. battery component according to claim 6, which is characterized in that the conductive sheet edge extends to first battery
The outside edges of piece and second cell piece, and be connected with the welding.
8. battery component according to claim 7, which is characterized in that pass through conduction between the conductive sheet and the welding
Glue is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820230441.4U CN207938625U (en) | 2018-02-08 | 2018-02-08 | A kind of double-sided solar battery component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820230441.4U CN207938625U (en) | 2018-02-08 | 2018-02-08 | A kind of double-sided solar battery component |
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| Publication Number | Publication Date |
|---|---|
| CN207938625U true CN207938625U (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820230441.4U Active CN207938625U (en) | 2018-02-08 | 2018-02-08 | A kind of double-sided solar battery component |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106194A (en) * | 2018-10-26 | 2020-05-05 | 比亚迪股份有限公司 | Double-sided solar cell and photovoltaic module |
| CN111564514A (en) * | 2020-04-29 | 2020-08-21 | 晋能清洁能源科技股份公司 | Double-layer combined double-sided assembly for P/N type battery piece |
| CN112216759A (en) * | 2020-09-22 | 2021-01-12 | 中国电子科技集团公司第十八研究所 | Three-terminal double-sided laminated solar cell and preparation process thereof |
-
2018
- 2018-02-08 CN CN201820230441.4U patent/CN207938625U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106194A (en) * | 2018-10-26 | 2020-05-05 | 比亚迪股份有限公司 | Double-sided solar cell and photovoltaic module |
| CN111564514A (en) * | 2020-04-29 | 2020-08-21 | 晋能清洁能源科技股份公司 | Double-layer combined double-sided assembly for P/N type battery piece |
| CN111564514B (en) * | 2020-04-29 | 2022-09-06 | 晋能清洁能源科技股份公司 | Double-layer combined double-sided assembly for P/N type battery piece |
| CN112216759A (en) * | 2020-09-22 | 2021-01-12 | 中国电子科技集团公司第十八研究所 | Three-terminal double-sided laminated solar cell and preparation process thereof |
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