CN207781626U - Battery component and copper foil battery component - Google Patents
Battery component and copper foil battery component Download PDFInfo
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- CN207781626U CN207781626U CN201721623724.7U CN201721623724U CN207781626U CN 207781626 U CN207781626 U CN 207781626U CN 201721623724 U CN201721623724 U CN 201721623724U CN 207781626 U CN207781626 U CN 207781626U
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- battery component
- cell piece
- back side
- adhesive layer
- conductive adhesive
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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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- Photovoltaic Devices (AREA)
Abstract
The utility model provides a kind of battery component and copper foil battery component, belongs to solar photovoltaic technology field.The battery component includes at least two cell pieces, the front gate line of the cell piece is connect with the back side grid line of the adjacent cell piece by connector, the front gate line region of the cell piece and back side grid region are covered with conductive adhesive layer, wherein, the conductive adhesive layer in the copper foil battery component is copper foil glue-line.The conductive adhesive layer makes resistance between the connector and the front gate line and the back side grid line reduce, and reduces the thickness of connector and filled layer, is while cost is reduced substantially improved the output power of the battery component and reliability.
Description
Technical field
The utility model is related to solar energy power generating fields, in particular to a kind of battery component and copper foil battery
Component.
Background technology
It is used with the rapid raising of economic level and to a large amount of exploitations of traditional energy, the storage capacity of traditional energy is more next
Cannot more meet the needs of people, while the pernicious gas of the resources such as coal, oil burning generation and particle cause sternly environment
The pollution of weight, solar energy, wind energy and tide energy etc. be renewable, free of contamination new energy is to the significant of modern society.Wherein,
Solar energy has obtained more attention and development, has promoted the sun as the most universal and higher renewable and clean energy resource of utilization rate
Energy photovoltaic power generation technology improves rapidly.
But the cell piece in existing solar photovoltaic battery component is connected by welding, is held when welding thickness is relatively low
Easily causing power attenuation causes cell piece to generate heat, to influence solar photovoltaic battery component power generation performance and reliability.
Utility model content
The purpose of this utility model is to provide a kind of battery component and copper foil battery components, to improve existing solar energy
Photovoltaic power pack, when welding thickness is relatively low be easy to causeing power attenuation causes cell piece to generate heat, the power generation of battery component
It can be with the relatively low problem of reliability.
What the embodiments of the present invention were realized in：
The utility model embodiment provides a kind of battery component, and the battery component includes at least two cell pieces, often
A cell piece is face-up setting.It is provided with front gate line, the battery in the positive front gate line region
Be provided with back side grid line in the back side grid region at the piece back side, the front gate line of each cell piece with it is adjacent described
The back side grid line of cell piece is connected by connector.It is also set in the front gate line region and the back side grid region
It is equipped with conductive adhesive layer, the connector is covered by the fixed glue-line.
In the utility model optional embodiment, area of the conductive adhesive layer in the positive overlay area does not surpass
Cross the area in the front gate line region.
In the utility model optional embodiment, area of the conductive adhesive layer in the overlay area at the back side does not surpass
Cross the area of the back of the body electric field of the cell piece.
In the utility model optional embodiment, the conductive adhesive layer is electrically conducting transparent glue.
In the utility model optional embodiment, the connector is made of conductive metallic material.
In the utility model optional embodiment, the conductive metallic material is tin-coated copper.
In the utility model optional embodiment, the battery component further includes by the front and back of the cell piece
The filled layer being completely covered, the conductive adhesive layer are covered by the filled layer.
In the utility model optional embodiment, the filled layer is macromolecule polymer material.
In the utility model optional embodiment, the macromolecule polymer material is EVA.
The utility model embodiment additionally provides a kind of copper foil battery component, and the copper foil battery component includes at least two
Cell piece, each cell piece is face-up setting.It is provided with front gate line in the positive front gate line region,
It is provided with back side grid line in the back side grid region at the cell piece back side.The front gate line and phase of each cell piece
The back side grid line of the adjacent cell piece is connected by connector.It is also covered with conducting resinl in the front gate line region
It is also covered with copper foil tape in layer and the back side grid region, the connector is by the conductive adhesive layer and the copper foil
Adhesive tape covers.
The advantageous effect of the utility model embodiment is：
A kind of battery component and copper foil battery component that the utility model embodiment provides, the battery component include at least
Two cell pieces, the front gate line of the cell piece are connect with the back side grid line of the adjacent cell piece by connector, are led to
The conductive adhesive layer or copper foil tape in the front gate line region and the covering of back side grid region of crossing the cell piece enhance the connection
The electric conductivity of part and the thickness for lowering the connector and filled layer, make the defeated of the battery component while cost is reduced
Go out power and reliability is substantially improved.
Description of the drawings
Shown in attached drawing, the above and other purpose, feature and advantage of the utility model will be more clear, all attached
Identical reference numeral indicates identical part in figure, does not press actual size equal proportion scaling deliberately and draws attached drawing, emphasis exists
In the purport for showing the utility model.
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of the battery component provided in this embodiment under the first visual angle；
Fig. 2 is a kind of structural schematic diagram of the battery component provided in this embodiment under the second visual angle；
Fig. 3 is a kind of overlay structure schematic diagram of cell piece provided in this embodiment；
Fig. 4 is a kind of structural schematic diagram of copper foil battery component provided in this embodiment.
Icon：100- battery components；110- cell pieces；111- front gate lines region；112- front gate lines；The back sides 113- grid
Line region；The back sides 114- grid line；120- connectors；130- conductive adhesive layers；200- copper foil battery components；210- copper foil tapes.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside"
For be based on the orientation or positional relationship shown in the drawings or the utility model product using when the orientation or position usually put
Relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Other feature and advantage of the utility model will illustrate in subsequent specification, also, partly from specification
It becomes apparent, or is understood by implementing the utility model embodiment.The purpose of this utility model and other advantages can
It realizes and obtains by specifically noted structure in the specification, claims and attached drawing write.
First embodiment
As people increase the usage amount of traditional energy, the pollution that whens burnings such as coal, oil and natural gas generates is more next
More serious, the sight of people more invests the renewable and clean energy resources such as solar cell.Single solar cell cannot directly be done
Power supply is made in power supply use, it is necessary to which the connection of several single battery series and parallels and the tight component that is packaged into are formed photovoltaic cell component.
Photovoltaic cell component (being also solar panel) is core and solar power system in solar power system
In most important part, effect be convert solar energy into electrical energy, and be sent in accumulator and store, or push load work
Make.Inventor is by long-term it has been observed that most of existing solar photovoltaic battery component is will be single by welding
Cell piece is chained together.Welding can cause the uneven surface of cell piece when thicker, be easy that cell piece is made to produce subsequent
Fragmentation in journey especially lamination process；The electric conductivity of welding can be caused poor again when welding is relatively thin, resistance increases generating electricity
Cause a large amount of power attenuation in the process, also result in welding fever, and then influence photovoltaic cell component power generation performance and can
By property.In order to solve problem above, the utility model embodiment provides a kind of battery component 100.
Referring to Fig.1 and 2, Fig. 1 is a kind of structural representation of the battery component provided in this embodiment under the first visual angle
Figure, Fig. 2 are a kind of structural schematic diagram of the battery component provided in this embodiment under the second visual angle.
Battery component 100 includes cell piece 110, connector 120, conductive adhesive layer 130 and filled layer.Wherein, cell piece 110
At least two, cell piece 110 is cascaded by connector 120, conductive adhesive layer 130 setting cell piece 110 with connect
On the surface that part 120 connects, filled layer is covered in again on conductive adhesive layer 130.
Cell piece 110 at least two, each cell piece 110 include front and back, each electricity in battery component 100
Pond piece 110 is face-up setting.In existing photovoltaic cell component technology, will usually be arranged each cell piece just
Positive and negative anodes of the grid line at face and the back side as cell piece, cell piece 110 provided in this embodiment include setting on the front
Front gate line 112 in front gate line region 111 and the back side grid line being arranged on the back side in back side grid region 113
114.Wherein, grid line is the important component of solar-energy photo-voltaic cell, it is responsible for passing through light in solar-energy photo-voltaic cell
The electric current of generation drains into outside batteries.Grid line design is always carried out in advance before studying solar cell, is produced for marking
The photolithography plate of the grid line, the size of grid line be according to preset battery parameter (such as open-circuit voltage, short-circuit current density,
Output voltage density and output current density of maximum functional point etc.) design.Grid line design it is excellent whether, to cell piece
Influence is very big, and the grid line structure of excellent in design can reduce the series resistance of cell piece, to make power attenuation become smaller, increases output
Power, this is particularly important to the monomer solar-energy photo-voltaic cell of large area power output.Solar-energy photo-voltaic cell piece field at present
In have two kinds of grid line design patterns of three grid lines and double grid line, wherein bonding strength when the photovoltaic cell Series connection welding of three grid lines
Bigger, more preferable to the collection effect of electric current, series resistance is small and power attenuation is lower than the photovoltaic cell of double grid line, uses three
100 power attenuation of battery component that grid line photovoltaic cell makes is few and stablizes, while the rule of cell piece 110 in the present embodiment
When lattice are 156 millimeters × 156 millimeters, the grid line of cell piece 110 selects three grid lines.Meanwhile grid line can be continuous one directly
The considerations of line can also be interrupted strip, and the present embodiment is for connective stability and electrical efficiency, selects the grid of continuous type
Line.It should be understood that the common used material of grid line is generally the metals such as the higher silver of conductivity and aluminium, the front in the present embodiment
Grid line 112 and back side grid line 114 are all made of silver and are made, in a further embodiment, front gate line 112 and back side grid line 114
The two or in which one can be made of the conductive desired metals of other satisfactions such as aluminium.
Each cell piece 110 in battery component 100 by a connector 120 by the anode of each cell piece 110 with
The cathode of an adjacent cell piece 110 is together in series, by another connector 120 by the cathode of the cell piece 110 and phase
The anode of another adjacent cell piece 110 is together in series, wherein the anode is front gate line 112, and the cathode is to carry on the back
Face grid line 114.Connector 120 has the function of connecting cell piece 110 and conduction, therefore the material of connector 120 is generally copper
Equal conductive metals, optionally, the connector 120 in the present embodiment are tin-coated copper strip or apply tin copper strips, meanwhile, connector 120 with
The connection type of front gate line 112 and back side grid line 114 is welding.Cell piece 110 is after welding is connected, it is also necessary to pass through layer
Pressure etc. processes complete encapsulation, and the thickness of connector 120 it is blocked up when can with the cell piece 110 formed difference in height, be easy to cause
Cell piece 110 is chipping in subsequent handling especially lamination process, in order to solve this problem, usually makes in traditional technology
With the difference in height between thicker filled layer filling connector 120 and cell piece 110 to prevent the battery component being laminated out 100 from producing
Anger bubble, gets higher so as to cause manufacturing cost.If the thickness of connector 120 is thinning, when its width is constant, (width increase can subtract
Few illuminating area is to reduce the acceptable light quantity of cell piece 110) cross-sectional area reduces, and resistance increases, and battery component 100 exists
Higher power attenuation is had in power generation process, 120 part of connector is caused to generate heat, and then influences the power generation of battery component 100
Performance And Reliability.To solve the above-mentioned problems, in the electrical efficiency for not influencing connector 120, do not increase the thickness of connector 120
The output power and power generation stability of battery component 110 are promoted while spending, the cell piece 110 in the present embodiment is in front gate line
Covering spraying conductive adhesive layer 130 in region 111 and back side grid region 113.
Referring to FIG. 3, Fig. 3 is a kind of overlay structure schematic diagram of cell piece provided in this embodiment.Conductive adhesive layer 130 covers
It covers between front gate line region 111 and back side grid region 113.Conducting resinl in conductive adhesive layer 130 be it is a kind of solidification or
Adhesive with certain electric conductivity after drying, it is usually mainly to form with matrix resin and conductive filler, that is, conducting particles
Ingredient is combined together conducting particles by the bonding effect of matrix resin, forms conductive path, and leading for material is glued in realization
Electrical connection.Since the matrix resin of conducting resinl is a kind of adhesive, suitable solidification temperature can be selected to be bonded, meanwhile,
Due to the densification of the miniaturization of electronic component, micromation and printed circuit board and the rapid development of Highgrade integration, and lead
Slurry can be made in electric glue, realize very high linear resolution.And conducting resinl is simple for process, and it is easily operated, production effect can be improved
Rate realizes the ideal chose being conductively connected so conducting resinl is to substitute slicker solder welding.Wherein, the spray area of conductive adhesive layer 130
Front should be less than or equal to front gate line region 111 area, overleaf should be less than or equal to back of the body electric field or back side grid line area
The area in domain 113.Optionally, the thickness of conductive adhesive layer 130 should control between 0.1 to 100 micron, and after spraying
It is purged 1 to 2 minute using nitrogen, to prevent from being mixed into the impurity such as dust to influence the electrical efficiency of cell piece 110.Meanwhile by
It needs to receive illumination progress photoelectric conversion in the front of cell piece 110, so being sprayed on the positive conductive adhesive layer of cell piece 110
130 should be electrically conducting transparent glue.It, can be with it should be understood that the drying process of conductive adhesive layer 130 is in addition to using nitrogen to dry up
The natural air drying under clean conditions, or dried below 150 degrees Celsius of temperature.Each electricity in battery component 100
When pond piece 110 is both provided with conductive adhesive layer 130, the degree that is connected firmly of connector 120 and cell piece 110 is enhanced, is increased
The cross-sectional area of current-carrying part, to make the electric current of same size only lead to by connector 120 and conductive adhesive layer 130 when ratio
Power attenuation is less when crossing connector 120.Lower power consumption means that the calorific value of battery component 100 is reduced, and is more advantageous to
The power generation of battery component 100, and lower temperature does not interfere with the adhesion of a variety of materials in 100 adhesion structure of battery component
Firmness makes the reliability of battery component 100 and fastness significantly be promoted.
Further, the surface of the cell piece 110 in battery component 100 is additionally provided with filled layer to reduce the connection of protrusion
The difference in height of part 120 and the surface of cell piece 110, forms to avoid because of the difference in height in the operations such as the lamination then carried out
Bubble is to influence the power generation stability and connective stability of cell piece 110 and battery component 100, and in addition to this filled layer is also
So that glass and backboard etc. more firmly can be fixedly connected on one with cell piece 110 in subsequent lamination and the processes such as frame up
It rises.After enhancing the electrical efficiency between each cell piece 110 of battery component 100 by spraying conductive adhesive layer 130, even
The thickness of fitting 120 substantially reduces, and the thickness of filled layer is also dramatically reduced therewith, in the system for reducing battery component 100
This while is caused to further enhance the power generation stability and connective stability of battery component 100.Optionally, filled layer is filled out
Fill the area in entire front or the entire back side that area is cell piece 110.Meanwhile in order to which cell piece 110 preferably carries out broadcasting and TV
Conversion, filled layer should be made of transparent material, while consider above-mentioned various demands, and filled layer can be polyphosphazene polymer
Close object material be made, further, in this embodiment filled layer can be EVA (ethylene-vinyl acetate copolymer).
The operation principle of battery component 100 provided in this embodiment is：
During preparing battery component 100, in the front gate line 112 and back side grid line by being welded on cell piece 110
After cell piece 110 is fixed together by the connector 120 on 114, by front gate line region 111 and back side grid line area
Conductive adhesive layer 130 of 0.1 micron of the spraying to 100 micron thickness improves electrical efficiency and reduces the thickness of connector 120 in domain 113
Degree, and then avoid making the thickness of filled layer become smaller while cell piece 110 is chipping in the processes such as lamination；Battery component
100 when receiving solar power generation, and light is radiated at cell piece 110 through transparent filled layer and transparent conductive adhesive layer 130
Front, each cell piece 110 carry out opto-electronic conversion generation electric energy be pooled to by front gate line 112 and back side grid line 114
Water conservancy diversion is carried out together and by connector 120, to make battery component 100 stablize and reliably generate electricity.
Second embodiment
Referring to FIG. 4, Fig. 4 is a kind of structural schematic diagram of copper foil battery component provided in this embodiment.
A kind of copper foil battery component 200 is present embodiments provided, copper foil battery component 200 includes cell piece 110, connector
120, conductive adhesive layer 130, filled layer and copper foil tape 150.Wherein, cell piece 110 at least two, cell piece 110 pass through
Connector 120 is cascaded, and conductive adhesive layer 130 is arranged on the front that cell piece 110 is connect with connector 120, copper foil glue
It is arranged on the back side that cell piece 110 is connect with connector 120 with 150, filled layer is covered in conductive adhesive layer 130 and copper foil glue again
On band 150.
The difference of copper foil battery component 200 provided in this embodiment and the battery component 100 in first embodiment exists
In at the back side of cell piece 110 using copper foil tape 210 instead of conductive adhesive layer 130.Further, conductive adhesive layer 130 is being used
When its spraying method be carry out large area rectangular spraying to cover the back side grid region 113 of cell piece 110, as a kind of reality
Mode is applied, the copper foil tape 210 of the present embodiment covers the back side grid line of overleaf grid region 113 by connection types such as bondings
On 112, elongated strip shaped only more slightly larger than 112 area of back side grid line further improves the conductive effect between cell piece 110
Rate.
In conclusion a kind of battery component and copper foil battery component that the utility model embodiment provides, the battery pack
Part includes at least two cell pieces, and the front gate line of the cell piece passes through with the back side grid line of the adjacent cell piece to be connect
Part connects, and the conductive adhesive layer or copper foil tape covered by the front gate line region of the cell piece and back side grid region enhances
The electric conductivity of the connector and the thickness for lowering the connector and filled layer, make the battery while cost is reduced
The output power and reliability of component are substantially improved.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of battery component, which is characterized in that the battery component includes：
At least two cell pieces, each cell piece is face-up setting, is set in the positive front gate line region
It is equipped with front gate line, back side grid line is provided in the back side grid region at the cell piece back side, the institute of each cell piece
Front gate line is stated to connect by connector with the back side grid line of the adjacent cell piece；
Conductive adhesive layer, the conductive adhesive layer are covered in the front gate line region and the back side grid region, the company
Fitting is covered by the conductive adhesive layer.
2. battery component according to claim 1, which is characterized in that the conductive adhesive layer is in the positive overlay area
Area be no more than the front gate line region area.
3. battery component according to claim 2, which is characterized in that overlay area of the conductive adhesive layer at the back side
Area be no more than the cell piece the back of the body electric field area.
4. according to the battery component described in any claim in claim 1-3, which is characterized in that the conductive adhesive layer is transparent leads
Electric glue.
5. battery component according to claim 1, which is characterized in that the connector is made of conductive metallic material.
6. battery component according to claim 5, which is characterized in that the conductive metallic material is tin-coated copper.
7. battery component according to claim 1, which is characterized in that the battery component further includes by the cell piece
The filled layer that front and back is completely covered, the conductive adhesive layer are covered by the filled layer.
8. battery component according to claim 7, which is characterized in that the filled layer is macromolecule polymer material.
9. battery component according to claim 8, which is characterized in that the macromolecule polymer material is EVA.
10. a kind of copper foil battery component, which is characterized in that the copper foil battery component includes：
At least two cell pieces, each cell piece is face-up setting, is set in the positive front gate line region
It is equipped with front gate line, back side grid line is provided in the back side grid region at the cell piece back side, the institute of each cell piece
Front gate line is stated to connect by connector with the back side grid line of the adjacent cell piece；
Conductive adhesive layer, the conductive adhesive layer are covered in the front gate line region, and the connector is covered by the conductive adhesive layer
Lid；
Copper foil tape, the copper foil tape are arranged in the back side grid region, and the connector is covered by the copper foil tape
Lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721623724.7U CN207781626U (en) | 2017-11-28 | 2017-11-28 | Battery component and copper foil battery component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721623724.7U CN207781626U (en) | 2017-11-28 | 2017-11-28 | Battery component and copper foil battery component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207781626U true CN207781626U (en) | 2018-08-28 |
Family
ID=63234056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721623724.7U Active CN207781626U (en) | 2017-11-28 | 2017-11-28 | Battery component and copper foil battery component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207781626U (en) |
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2017
- 2017-11-28 CN CN201721623724.7U patent/CN207781626U/en active Active
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