CN104701402A - Series connection type solar cell and forming method thereof - Google Patents

Series connection type solar cell and forming method thereof Download PDF

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Publication number
CN104701402A
CN104701402A CN201310664717.1A CN201310664717A CN104701402A CN 104701402 A CN104701402 A CN 104701402A CN 201310664717 A CN201310664717 A CN 201310664717A CN 104701402 A CN104701402 A CN 104701402A
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solar battery
electrode
battery cell
group
wire
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CN104701402B (en
Inventor
朱慧珑
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Guangxi Rongnanxin Electronic Technology Co ltd
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Poly Day (suzhou) Technology Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
    • H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention discloses a series connection type solar cell and a forming method thereof and relates to solar cell arrays. The series connection type solar cell comprises N solar cell unit groups, a first wire group and a second wire group, the N solar cell unit groups are arranged abreast, the first wire group is arranged on the upper surface of the solar cell array, and the second wire group is arranged on the lower surface of the solar cell array and spaced from the first wire group. A first electrode of each of the spaced solar cell unit groups and a second electrode of the solar cell unit group on one side of the same solar cell unit group are covered by the first wire group in a connected manner, and the first electrode of each of the spaced solar cell unit groups is not connected with a second electrode of the solar cell unit group on the other side of the same solar cell unit group via the first wire group. A second electrode of each of the spaced solar cell unit groups and a first electrode of the solar cell unit group on the other side of the same solar cell unit group are covered by the second wire group in a connected manner, and the second electrode of each of the spaced solar cell unit groups is not connected with a first electrode of the solar cell unit group on one side of the same solar cell unit group via the second wire group.

Description

A kind of serial solar energy battery and forming method thereof
Technical field
The present invention relates to field of semiconductor manufacture, particularly solar cell manufactures field, more specifically, the present invention relates to a kind of serial solar energy battery and forming method thereof.
Background technology
First existing solar battery structure normally forms solar battery sheet, this solar battery sheet is complete platy structure, existing solar battery sheet is being carried out in the technique of bus processing, it is the technology adopting silk screen printing, printing process is first placed on print station by solar battery sheet, very meticulous printing screen is fixed on screen frame, is placed on above cell piece; Silk screen has electrocondution slurry can through need print pattern.Appropriate slurry is positioned on silk screen, smears slurry with scraper, make its uniform filling among mesh.Scraper is expressed to slurry on cell piece by screen mesh in the process of movement.The temperature of this process, pressure, speed and its dependent variable all must strictly control.In the above-described techniques, because cell piece is integral structure, the electrocondution slurry being therefore positioned at one side can not penetrate into another side due to printing.
But along with the continuous innovation of area of solar cell technology and development, there is a kind of new solar battery structure, wherein each solar battery cell is independently, such solar cell has the facility of processing cost and process aspect, and can configure the area of solar cell as required easily.But above-described screen printing technique but can not be applied in such solar cell, because silk screen printing can cause the electrocondution slurry of solar battery cell one side penetrate into another side when printing thus cause the problems such as short circuit to make the performance of solar cell be affected.
Therefore, need to propose a kind of method forming the connection bus of solar cell, the generation of above-mentioned situation can be avoided, under the prerequisite not affecting solar cell properties, make solar cell more easily be configured, reduce manufacturing cost and be easy to application according to actual needs simultaneously.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency, realizes the bus-structured serial solar energy battery of connecting material.
Solar battery array, comprises the N number of solar battery cell group be set up in parallel, each solar battery cell group comprise one independently or multiple be set up in parallel independently and the identical solar battery cell of type;
First wire group, is arranged on the upper surface of described solar battery array, and described first wire group comprises one or more the first wire blocked;
Second wire group, be arranged on described solar battery array lower surface and and described first wire group interval arrange, described second wire group comprises one or more the second wire blocked;
Described solar battery cell comprises: the solar battery cell of the first kind and the solar battery cell of Second Type, the solar battery cell of the described first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, lay respectively at the first semiconductor layer upper surface, and second semiconductor layer lower surface first, second electrode, the solar battery cell of described Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, lay respectively at first of the first semiconductor layer lower surface and the second semiconductor layer upper surface, second electrode,
Wherein, for adjacent solar battery cell group, its type is different, for each of solar battery cell group separately, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.
Alternatively, first, second wire group described comprises electric conducting material, for connecting described wire group and described electrode.
Alternatively, the total current that produces of each solar battery group is roughly equal.
Alternatively, described electric conducting material covers the inner surface of whole described first wire group and the second wire group.
Alternatively, described electric conducting material only covers the first electrode and the second electrode the first wire group by part and the inner surface of the second wire group.
Alternatively, described first semiconductor layer is N-type, and described second semiconductor layer is P type.
Alternatively, the material of described first electrode and the second electrode is aluminium, silver, argentalium alloy, nickel, copper and combination thereof.
Alternatively, described first electrode, the second electrode also have for improving the bonding plate with the contact area of the first wire group and the second wire group contact portion.
Alternatively, the sidewall of described solar battery cell also has insulation side wall.
Alternatively, described solar battery cell upper and lower surface also has insulating barrier, and described insulating barrier covers the surface of the second conductive layer outside the surface of the first conductive layer outside the first electrode and the second electrode.
Alternatively, the electric current that solar battery cell in the electric current that solar battery cell in 2n-1 solar battery cell group produces and 2n solar battery cell group produces is roughly equal, 1 ﹦ <n ﹤ ﹦ [(N+1)/2].
Alternatively, also comprise battery glued membrane, described battery glued membrane wraps up described serial solar energy battery and the gap be present between described solar battery cell.
Alternatively, each solar battery group comprises the solar battery cell of identical or different quantity.
Alternatively, when battery pack in solar panel is odd number, the first electrode being positioned at the battery pack of solar battery array one end is connected with outside by the first wire group, and the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside by the second wire group.
Alternatively, when battery pack in solar panel is even number, its first electrode being positioned at the battery pack of solar battery array one end is connected with outside by the first wire group, and the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside by the first wire group.
Alternatively, when battery pack in solar panel is odd number, its first electrode being positioned at the battery pack of solar battery array one end is connected with outside by the second wire group, and the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside by the first wire group.
Alternatively, when battery pack in solar panel is even number, its first electrode being positioned at the battery pack of solar battery array one end is connected with outside by the second wire group, and the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside by the second wire group.
In addition, present invention also offers the serial solar energy battery structure of other embodiments above-mentioned, comprising:
Solar battery array, comprises the N number of solar battery cell group be set up in parallel, each solar battery cell group comprise one independently or multiple be set up in parallel independently and the identical solar battery cell of type;
First propping bar group, described first propping bar group comprises the first propping bar that one or more non-conducting material is formed, and described propping bar is arranged on solar battery array upper surface;
First wire group, described first wire group comprises the first wire that is corresponding with the first propping bar number, that block, and propping bar upper surface described in every bar arranges first wire;
Second propping bar group, described second propping bar group comprises the second propping bar that one or more non-conducting material is formed, and described propping bar is arranged on solar battery array lower surface;
Second wire group, described second wire group comprises the second wire that is corresponding with the second propping bar number, that block, and propping bar lower surface described in every bar arranges second wire;
Described solar battery cell comprises: the solar battery cell of the first kind and the solar battery cell of Second Type, the solar battery cell of the described first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, lay respectively at the first semiconductor layer upper surface, and second semiconductor layer lower surface first, second electrode, the solar battery cell of wherein said Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, lay respectively at first of the first semiconductor layer lower surface and the second semiconductor layer upper surface, second electrode,
Wherein, for adjacent solar battery cell group, its type is different, for each of solar battery cell group separately, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.
Alternatively, first, second wire group described comprises electric conducting material, for connecting described wire group and described electrode.
Alternatively, the total current that produces of each solar battery group is roughly equal.
Alternatively, described electric conducting material covers the inner surface of whole described first wire group and the second wire group.
Alternatively, described electric conducting material only covers the first electrode and the second electrode the first wire group by part and the inner surface of the second wire group.
Alternatively, described first semiconductor layer is N-type, and described second semiconductor layer is P type.
Alternatively, the material of described first electrode and the second electrode is aluminium, silver, argentalium alloy, nickel, copper and combination thereof.
Alternatively, described first electrode, the second electrode also have for improving the bonding plate with the contact area of the first wire group and the second wire group contact portion.
Alternatively, the sidewall of described solar battery cell also has insulation side wall.
Alternatively, described solar battery cell upper and lower surface also has insulating barrier, and described insulating barrier covers the surface of the second conductive layer outside the surface of the first conductive layer outside the first electrode and the second electrode.
Alternatively, the electric current that solar battery cell in the electric current that solar battery cell in 2n-1 solar battery cell group produces and 2n solar battery cell group produces is roughly equal, 1 ﹦ <n ﹤ ﹦ [(N+1)/2].
Alternatively, also comprise battery glued membrane, described battery glued membrane wraps up described serial solar energy battery and the gap be present between described solar battery cell.
Alternatively, each solar battery group comprises the solar battery cell of identical or different quantity.
Alternatively, when battery pack in solar panel is odd number, the first electrode being positioned at the battery pack of solar battery array one end is connected with outside by the first wire group, and the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside by the second wire group.
Alternatively, when battery pack in solar panel is even number, its first electrode being positioned at the battery pack of solar battery array one end is connected with outside by the first wire group, and the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside by the first wire group.
Alternatively, when battery pack in solar panel is odd number, its first electrode being positioned at the battery pack of solar battery array one end is connected with outside by the second wire group, and the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside by the first wire group.
Alternatively, when battery pack in solar panel is even number, its first electrode being positioned at the battery pack of solar battery array one end is connected with outside by the second wire group, and the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside by the second wire group.
Alternatively, described first wire group is at described propping bar upper surface substantially wave-like, and wave crest portions protrudes from the first propping bar edge to contact with described electrode; Described second wire group is at described propping bar lower surface substantially wave-like, and wave crest portions protrudes from the second propping bar edge to contact with described electrode.Described wave crest portions is connected with bonding plate.
Alternatively, the first propping bar group comprises two the first propping bars, lays respectively at the both sides of solar battery array upper surface and outside the electrode being placed in described battery unit, contacts with each described battery unit.Second propping bar group comprises two the second propping bars, lays respectively at the both sides of solar battery array lower surface and outside the electrode being placed in described battery unit, contacts with each described battery unit.
In addition, present invention also offers the manufacture method of the serial solar energy battery of more above-mentioned embodiments, comprise step:
A, providing package is containing the solar battery array of the N number of solar battery cell group be set up in parallel, each solar battery cell group comprise one independently or multiple be set up in parallel independently and the identical solar battery cell of type, for adjacent solar battery cell group, its type is different, described type comprises the first kind and Second Type, the solar battery cell of the wherein said first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, lay respectively at the first semiconductor layer upper surface, and second semiconductor layer lower surface first, second electrode, the solar battery cell of wherein said Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, lays respectively at first, second electrode of the first semiconductor layer lower surface and the second semiconductor layer upper surface,
B, provide the first propping bar group and the first wire group, described first propping bar group comprises the first propping bar of one or more non-conducting material, described first wire group comprises first wire corresponding with described first propping bar number, and described in every bar, propping bar upper surface arranges first wire;
C, described first propping bar group is placed in described solar battery cell group upper surface, described first wire group is connected with the electrode of solar battery array;
D, provide the second propping bar group and the second wire group, described second propping bar group comprises the second propping bar of one or more non-conducting material, described second wire group comprises second wire corresponding with described second propping bar number, and described in every bar, propping bar upper surface arranges second wire;
E, described second propping bar group is placed in the one side that described solar battery cell group does not arrange the first propping bar group, described second wire group is connected with the electrode of solar battery array;
F, part blocks described first, second wire group, to make for each of solar battery cell group separately, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.
Alternatively, first, second wire group described comprises electric conducting material, for connecting described wire group and described electrode.
Alternatively, also comprise: step f, by drying the mode such as welding, electric conducting material to be connected with solar battery cell group electrode.
Alternatively, described step b and d also comprises the step of electric conducting material described in patterning, covers the part with first, second electrode contact of described solar battery cell to make described electric conducting material.
Alternatively, described step a is also included on first, second electrode described and is formed for improving the bonding plate with the contact area of conductive contact part.
Alternatively, described step a is also included in the sidewall formation insulation side wall of described solar battery cell.
Alternatively, described step a is also included in the upper and lower surface formation insulating barrier of described solar battery cell.
Alternatively, when battery pack in solar panel is odd number, arrange the first wire group the first electrode of the battery pack being positioned at solar battery array one end is connected with outside, the second wire group is set simultaneously the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside.
Alternatively, when battery pack in solar panel is even number, arrange the first wire group the first electrode of the battery pack being positioned at solar battery array one end is connected with outside, the first wire group is set simultaneously the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside.
Alternatively, when battery pack in solar panel is odd number, arrange the second wire group the first electrode of the battery pack being positioned at solar battery array one end is connected with outside, the first wire group is set simultaneously the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside.
Alternatively, when battery pack in solar panel is even number, arrange the second wire group the first electrode of the battery pack being positioned at solar battery array one end is connected with outside, the second wire group is set simultaneously the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside.
Alternatively, described step b and d also comprises the step of electric conducting material described in patterning, covers the part with first, second electrode contact of described solar battery cell to make described electric conducting material.
Alternatively, described step b comprises: provide first wire with basic wave-like, and wave crest portions is set up and protrudes from the first propping bar edge to contact with described electrode; And described steps d comprises: provide second wire with basic wave-like, wave crest portions is set up and protrudes from the second propping bar edge to contact alternatively with described electrode, and described wave crest portions is connected with bonding plate.
Alternatively, described step b comprises: provide the first propping bar group comprising two the first propping bars; And described step c comprises: described propping bar be arranged at respectively the both sides of solar battery array upper surface and outside the electrode being placed in described battery unit, contact with each described battery unit.
Alternatively, described steps d comprises: provide the second propping bar group comprising two the second propping bars; And described step e comprises: described propping bar is arranged at respectively solar battery array and does not arrange the both sides of the one side of the first propping bar group and outside the electrode being placed in described battery unit, contact with each described battery unit.
More preferably, the electric current that solar battery cell in the electric current that solar battery cell in 2n-1 solar battery cell group produces and 2n solar battery cell group produces is roughly equal, 1 ﹦ <n ﹤ ﹦ [(N+1)/2].
Different from existing solar battery structure, each solar battery cell in solar battery array of the present invention is independently, thus can configure the area of solar cell as required easily.And existing solar battery sheet is carried out in the technique of bus processing, be the technology adopting silk screen printing, because cell piece is integral structure, the electric conducting material being therefore positioned at one side can not penetrate into another side due to printing.But this technology can not be applied to the present invention, battery unit of the present invention is independently, and silk screen printing can cause the electric conducting material of solar battery cell one side penetrate into another side when printing thus the performance of solar cell is affected.And utilize the method for the connecting material bus of formation solar cell of the present invention, the generation of above-mentioned situation can be avoided, under the prerequisite not affecting solar cell properties, make solar cell more easily be configured according to actual needs, reduce manufacturing cost simultaneously.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 (a) shows the vertical view of solar battery array according to a first embodiment of the present invention;
Fig. 1 (b) shows the viewgraph of cross-section of the solar battery array shown in Fig. 1 (a) along A-A ' direction;
Fig. 2 (a) shows the vertical view of the first wire group according to a first embodiment of the present invention;
Fig. 2 (b) shows the viewgraph of cross-section of the group of wire shown in Figure 13 (a) along A-A ' direction;
Fig. 3 (a) shows the vertical view covering the first wire group of electric conducting material according to a first embodiment of the present invention;
Fig. 3 (b) shows the viewgraph of cross-section of the wire group shown in Fig. 3 (a) along A-A ' direction;
Fig. 4 (a) shows the vertical view be arranged on by solar battery array in the first wire group according to a first embodiment of the present invention;
Fig. 4 (b) shows the viewgraph of cross-section of the solar battery array shown in Fig. 4 (a) along A-A ' direction;
Fig. 5 (a) shows the vertical view arranging the second wire group on described solar battery array according to a first embodiment of the present invention;
Fig. 5 (b) shows the viewgraph of cross-section of the solar battery array shown in Fig. 5 (a) along A-A ' direction;
Fig. 5 (c) shows the viewgraph of cross-section of the solar battery array shown in Fig. 5 (a) along B-B ' direction;
Fig. 6 (a) shows the first wire group of first embodiment of the invention and the second wire group by the vertical view of the solar battery array after partly blocking;
Fig. 6 (b) shows the cross sectional view of the solar battery array shown in Fig. 6 (a) along A-A ' direction;
Fig. 6 (c) shows the cross sectional view of the solar battery array shown in Fig. 6 (a) along B-B ' direction;
Fig. 7 (a) shows the vertical view arranging the first wire group and the second wire group on described solar battery array according to a second embodiment of the present invention;
Fig. 7 (b) shows the viewgraph of cross-section of the solar battery array shown in Fig. 7 (a) along A-A ' direction;
Fig. 7 (c) shows the viewgraph of cross-section of the solar battery array shown in Fig. 7 (a) along B-B ' direction;
Fig. 8 (a) shows the first wire group of second embodiment of the invention and the second wire group by the vertical view of the solar battery array after partly blocking;
Fig. 8 (b) shows the cross sectional view of the solar battery array shown in Fig. 8 (a) along A-A ' direction;
Fig. 8 (c) shows the cross sectional view of the solar battery array shown in Fig. 8 (a) along B-B ' direction;
Fig. 9 (a) shows the vertical view of solar battery array according to a third embodiment of the present invention;
Fig. 9 (b) shows the viewgraph of cross-section of the solar battery array shown in Fig. 9 (a) along A-A ' direction;
Figure 10 (a) shows the vertical view of propping bar according to a third embodiment of the present invention;
Figure 10 (b) shows the viewgraph of cross-section of propping bar shown in Figure 10 (a) along A-A ' direction;
Figure 10 (c) shows the vertical view of propping bar according to a third embodiment of the present invention and wire;
Figure 10 (d) shows the propping bar shown in Figure 11 (a) and the wire viewgraph of cross-section along A-A ' direction;
Figure 11 shows the vertical view that shown first propping bar group and the first wire group are placed in battery pack upper surface;
Figure 12 (a) shows shown first propping bar group and part cuts off the vertical view that rear first wire group is placed in battery pack upper surface;
Figure 12 (b) shows shown second propping bar group and part cuts off the upward view that rear second wire group is placed in battery pack lower surface;
Figure 12 (c) shows the viewgraph of cross-section along A-A ' direction of the solar battery array shown in Figure 12 (a).
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
first embodiment
To describe the first embodiment of the present invention with reference to the accompanying drawings below, in the adjacent solar battery group in solar battery array, solar battery cell has different types.
Specifically, see Fig. 1 (a), b () first, in step a, providing package is containing the solar battery array 101 of the N number of solar battery cell group be set up in parallel, wherein solar battery cell comprises two types, 2n-1 solar battery cell 101-1, 101-3 is the first kind, 2n solar battery cell 101-2, 101-4 is Second Type, wherein, 1 ﹦ <n ﹤ ﹦ [(N+1)/2], that is the solar battery cell of odd number is a type, the solar battery cell of even number is another kind of type.
In the present embodiment, each solar battery cell group comprises an independently solar battery cell, N is 4, namely provides 4 solar battery cell group 100-1 ... 100-4, each stacks of cells only comprises a solar battery cell 101-1 ... 101-4,1st, 3 solar battery cell 101-1,101-3 are the first kind, the 2nd, 4 solar battery cell 101-2,101-4 are Second Type.The solar battery cell of the described first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, be positioned at the first electrode 102-1 of the first semiconductor layer upper surface ... 102-4 and the second electrode 103-1 being positioned at the second semiconductor layer lower surface ... 103-4, the solar battery cell of described Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, is positioned at the first electrode 102-1 of the first semiconductor layer lower surface ... 102-4 and the second electrode 103-1 being positioned at the second semiconductor layer upper surface ... 103-4.In another embodiment, also insulation side wall (not shown) is formed at described solar battery cell sidewall.Selectively, can also be formed on first, second electrode described for improving the bonding plate (not shown) with the contact area of connecting material contact portion simultaneously.
More preferably, also insulating barrier is comprised for described solar battery cell, described insulating barrier covers the surface of the second conductive layer outside the surface of the first conductive layer outside the first electrode and the second electrode, that is, this insulating barrier covers not by the surface of the first semiconductor layer of the first electrode covering and not by the surface of the second semiconductor layer of the second electrode covering, like this, for each solar battery cell, can stop that the electric conducting material in solar battery cell one side flows to the short circuit of the upper/lower electrode that this solar battery cell another side causes by this insulating barrier.
Wherein said term " upper surface ", " lower surface ", " above ", " below " merely illustrate the relative position relation between each parts of described solar battery cell, therefore when carrying out displacement to described solar battery cell in the forming process at solar cell, when overturning or put upside down, this relative position relation may be put upside down or change.
The solar battery sheet be integrally formed different from the past, solar battery cell 101-1 in solar battery array 101 of the present invention ... 101-4 is separate battery unit, the quantity of the battery unit comprised and the area of each battery unit can actually as required be determined, particularly actually can to determine according to the required electric current that reaches and voltage.In order to optimize the battery component power output after series connection, preferably, the electric current that solar battery cell in above-mentioned odd number solar battery cell group produces is substantially equal to the electric current that the solar battery cell in even number solar battery cell group produces, for this reason, the area of the solar battery cell in odd number solar battery cell group can be different from the area of the solar battery cell in even number solar battery cell group, and this is due to the structure of battery, transformation efficiency and enters the size that the equal factor in light face determines its electric current jointly.Described solar battery cell can also comprise other intermediate layers or doped region, and these all can be arranged as required, and can not become restriction of the present invention.Described top electrode can be finger line, and its material includes but not limited to aluminium, silver, argentalium alloy, nickel, copper etc., and its thickness is preferably 5 microns-100 microns.
Then in step b, first wire group 201 is provided, Fig. 2 (a) shows and comprises 2 wire 201-1 according to the often group of the embodiment of the present invention, the vertical view of the first wire group 201 of 201-2, and Fig. 2 (b) shows the viewgraph of cross-section along A-A ' direction in Fig. 2 (a).Certain wire group also can comprise the wire of other quantity.Wire can be copper cash, aluminum steel, silver-colored line, the copper cash wrapping up TiAlN thin film or other conductive metallic materials.The width of described line is preferably 20 microns-300 microns, and thickness is preferably 20 microns-300 microns.As shown in Fig. 3 (a), wherein the length of wire is the guide line upper numerical value extended along the x-axis direction, and width is the numerical value that guide line goes up along the y-axis direction along extending, and thickness refers to the upper numerical value extended along the z-axis direction.The cross section of wire can be, but is not limited to circle, oval and rectangle.Then, as shown in Fig. 4 (a) and (b), cover conducting resinl at the only inner surface of described first wire group, the inner surface of wherein said wire group is the surface with the solar battery array that will be described in more detail below and electrode contact thereof.In another embodiment, electric conducting material can be covered by the mode of patterning, to make conducting resinl only cover the part with first, second electrode contact, for the formation of the connection bus of solar battery cell.Described conducting resinl can be elargol or other conducting resinl, and described electric conducting material can be that the thickness of the material covering conducting resinls such as the scolding tin of various electrical connection can match with the thickness of the top electrode that will be described below, and is preferably 5 microns-100 microns.
As shown in Fig. 5 (a) and (b), in step c, described solar battery array 101 is arranged in described first wire group 201, make the described multiple battery unit 101-1 of described first wire group contact, each of 101-4, wherein said first wire group covers the surface of electric conducting material and the electrode contact of described solar battery cell.
Steps d, with described step c similarly, second wire group 202 spaced with described first wire group 201 is provided, described second wire group inner surface cover electric conducting material.Described second wire group 202 is 2 in the present embodiment, certainly can comprise the connecting material of other quantity.
In step e, as shown in Fig. 5 (a)-(c), the one side described solar battery array not being covered the first wire group is arranged in described second wire group, make each of the described multiple battery unit of described second wire group contact, wherein said second wire group covers the surface of conducting resinl and the electrode contact of described solar battery cell.
In step f, as 6(a)-(c) shown in, part blocks described first, second wire group, namely to make for each of solar battery cell (also solar battery cell group) separately, second electrode of its first electrode and the solar battery cell of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell of its opposite side, first electrode of the solar battery cell of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell of its this side of second electrode and its is not connected by described second wire group.
Then, in step f, by drying, electric conducting material is connected with solar battery group with wire group, electrode by welding, the method such as clamping or bonding.
Alternatively, when battery pack in solar cell is odd number, arrange the first wire group the first electrode of the battery pack being positioned at solar battery array one end is connected with outside, the second wire group is set simultaneously the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside.
Alternatively, when battery pack in solar cell is even number, arrange the first wire group the first electrode of the battery pack being positioned at solar battery array one end is connected with outside, the first wire group is set simultaneously the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside.
Alternatively, when battery pack in solar cell is odd number, arrange the second wire group the first electrode of the battery pack being positioned at solar battery array one end is connected with outside, the first wire group is set simultaneously the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside.
Alternatively, when battery pack in solar cell is even number, arrange the second wire group the first electrode of the battery pack being positioned at solar battery array one end is connected with outside, the second wire group is set simultaneously the second electrode being positioned at the battery pack of another end of solar battery array is connected with outside.
It is more than the formation method of the serial solar energy battery of the present invention according to first embodiment of the present invention description.
second embodiment
Above the serial solar energy battery with dissimilar solar battery cell of the embodiment of the present invention one is described in detail, below the aspect being only different from embodiment one with regard to embodiment two is set forth, the part do not described will be understood that and have employed similar structure with embodiment one and be connected, and repeats no more.
Relative to embodiment one, the main distinction of embodiment two is, includes multiple solar battery cell in solar battery cell group, and these solar battery cells are set up in parallel, and be independently battery unit, and type is identical.That is, in embodiment two, the multiple solar battery cells in solar battery cell group are identical type, and the battery unit in adjacent solar battery cell group is dissimilar.
First, in step a, providing package is containing the solar battery array 101 of the N number of solar battery cell group be set up in parallel, solar battery cell wherein in solar battery cell group comprises two types, solar battery cell in 2n-1 solar battery cell group is the first kind, solar battery cell in 2n solar battery cell group is Second Type, wherein, and 1 ﹦ <n ﹤ ﹦ [(N+1)/2].
Particularly, in the present embodiment, with reference to figure 7(a) shown in, 2 solar battery cell group 100-1 ', 100-2 ' are provided, namely N is 2, each solar battery cell group comprises 2 solar battery cells, namely the 1st solar battery cell group 100-1 ' includes arranged side by side, the independently first kind solar battery cell 101-1 ', 101-2 ', and the 2nd solar battery cell group 100-2 ' includes arranged side by side, independently Second Type solar battery cell 101-3 ', 101-4 '.Be only example herein, in other embodiments, the solar battery cell of varying number in different solar battery cell groups, can also be comprised.
Then, with the step b in embodiment one to step e, with reference to figure 7(a)-7(c) shown in, the first wire group 201 ' and the second wire group 202 ' connecting each solar battery cell is covered on the two sides of solar battery array, like this, in the inside of solar battery cell group, between battery unit, define structure in parallel.
Then, as Fig. 8 (a)-8(c) shown in, part blocks the first wire group 201 ' and the second wire group 202 ', make each of solar battery cell group separately like this, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.Like this, between solar battery cell group, cascaded structure is formed.
Then, the steps such as oven dry electric conducting material connection can be carried out, with embodiment one.So far, the solar battery structure of connecting again after defining the parallel connection of the embodiment of the present invention two.
Be described in detail for the formation method of first, second embodiment to serial solar energy battery of the present invention above, in addition, present invention also offers the solar cell obtained according to the above embodiments, comprise: solar battery array, comprise the N number of solar battery cell group be set up in parallel, each solar battery cell group comprise one independently or multiple be set up in parallel independently and the identical solar battery cell of type;
First wire group, is arranged on the upper surface of described solar battery array;
Second wire group, be arranged on described solar battery array lower surface and and described first wire group interval arrange;
Described solar battery cell comprises: the solar battery cell of the first kind and the solar battery cell of Second Type, the solar battery cell of the described first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, lay respectively at the first semiconductor layer upper surface, and second semiconductor layer lower surface first, second electrode, the solar battery cell of described Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, lay respectively at first of the first semiconductor layer lower surface and the second semiconductor layer upper surface, second electrode.
Wherein, for adjacent solar battery cell group, its type is different, for each of solar battery cell group separately, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.
Selectively, as required, described electric conducting material can cover the inner surface of whole described first wire group and the second wire group or described electric conducting material and only cover the first electrode and the first wire group of the second electrode by part and the inner surface of the second wire group.
More preferably, described first electrode, the second electrode also have for improving the bonding plate with the contact area of the first wire group and the second wire group contact portion.More preferably, the sidewall of described solar battery cell also has insulation side wall.Described solar battery cell upper and lower surface also has insulating barrier, and described insulating barrier covers the surface of the second semiconductor layer outside the surface of the first semiconductor layer outside the first electrode and the second electrode.More preferably, the electric current that solar battery cell in the electric current that solar battery cell in 2n-1 solar battery cell group produces and 2n solar battery cell group produces is roughly equal, 1 ﹦ <n ﹤ ﹦ [(N+1)/2].
For above-mentioned series-connected solar cells, can further include battery glued membrane, described battery glued membrane wraps up described serial solar energy battery and the gap be present between described solar battery cell.
3rd embodiment
Above the serial solar energy battery with dissimilar solar battery cell of the embodiment of the present invention one is described in detail, below the aspect being only different from embodiment one with regard to embodiment three is set forth, the part do not described will be understood that and have employed similar structure with embodiment one and be connected, and repeats no more.
With reference to the accompanying drawings the third embodiment of the present invention will be described below, be to provide the first propping bar group and the first wire group in stepb in the difference of the 3rd embodiment and the first embodiment, wherein the first propping bar group comprises the first propping bar of two non-conducting materials, first wire group comprises two first wires, second propping bar group and the second wire group are provided in steps d, wherein the second propping bar group comprises the second propping bar of two non-conducting materials, and the second wire group comprises two second wires
Specifically, see Fig. 9 (a) and (b), in step a, providing package is containing the solar battery array 101 of the N number of solar battery cell group be set up in parallel, wherein solar battery cell comprises two types, 2n-1 solar battery cell 101-1,101-3 are the first kind, 2n solar battery cell 101-2,101-4 is Second Type, wherein, 1 ﹦ <n ﹤ ﹦ [(N+1)/2].
In the present embodiment, each solar battery cell group comprises an independently solar battery cell, N is 4, namely provides 4 solar battery cell 101-1 ... 101-4, each stacks of cells only comprises a solar battery cell 101-1 ... 101-4,1st, 3 solar battery cell 101-1,101-3 are the first kind, the 2nd, 4 solar battery cell 101-2,101-4 are Second Type.The solar battery cell of the described first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, be positioned at the first electrode 102-1 of the first semiconductor layer upper surface ... 102-4 and the second electrode 103-1 being positioned at the second semiconductor layer lower surface ... 103-4, the solar battery cell of described Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, is positioned at the first electrode 102-1 of the first semiconductor layer lower surface ... 102-4 and the second electrode 103-1 being positioned at the second semiconductor layer upper surface ... 103-4.Formed for improving the bonding plate with the contact area of connecting material contact portion at the two ends of first, second electrode described.In another embodiment, also insulation side wall (not shown) is formed at described solar battery cell sidewall.
In step b, d, as shown in Figure 10 (a) and (b), (c), (d), provide support grid and wire, the first wire 401 comprising non-conducting material 301-1, substantially wave-like and the electric conducting material covered in wire group.The material of described non-conducting material can such as glass, PET, PVC, rubber and polymethyl methacrylate etc., and thickness is preferably 100 microns to 5 millimeters.
In step c, e, as Figure 11,12(a)-(c) shown in, the combination of described two the first propping bars and the first wire is arranged on solar battery array upper surface, be positioned at the both sides of solar battery array upper surface, described first wire covers the inner surface of electric conducting material and the Electrode connection of described solar battery cell.Overturn described solar battery array, the one side described solar battery array not being covered the first wire group is arranged on two the second propping bars identical with the first wire with the first propping bar and the second wire, cover electric conducting material at the inner surface of described second wire, described second wire covers the surface of electric conducting material and the Electrode connection of described solar battery cell.The wave crest portions of the first/the second wire group of so basic wave-like can protrude from the first/the second propping bar edge to contact with described electrode.Electrode is provided with bonding plate, described wave crest portions is connected with bonding plate.
In step f, as shown in Figure 12 (a)-(c), part blocks described first, second wire group, to make for each of solar battery cell group separately, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.
Alternatively, in step f, dry described conducting resinl and described solar battery structure is annealed.
Alternatively, also comprise the step of conducting resinl described in patterning at described step b and d, cover the part with first, second electrode contact of described solar battery cell to make described conducting resinl.
Alternatively, in described step a, add battery glued membrane on described non-conducting material surface.
Certainly, described in block wire step can carry out after wire is set to propping bar, also can carry out after propping bar is placed into solar battery array.
In the present embodiment and diagram in all for solar battery group comprise one independently solar cell be described, certainly, the independently solar battery cell of other quantity in each described solar battery group, can also be comprised.
Be described in detail for the formation method of the 3rd embodiment to serial solar energy battery of the present invention above, in addition, present invention also offers the solar cell obtained according to the above embodiments, comprising:
Solar battery array, comprises the N number of solar battery cell group be set up in parallel, each solar battery cell group comprise one independently or multiple be set up in parallel independently and the identical solar battery cell of type;
First propping bar group, described first propping bar group comprises the first propping bar that one or more non-conducting material is formed, and described propping bar is arranged on solar battery array upper surface;
First wire group, described first wire group comprises the first wire that is corresponding with the first propping bar number, that block, and propping bar upper surface described in every bar arranges first wire;
Second propping bar group, described second propping bar group comprises the second propping bar that one or more non-conducting material is formed, and described propping bar is arranged on solar battery array lower surface;
Second wire group, described second wire group comprises the second wire that is corresponding with the second propping bar number, that block, and propping bar lower surface described in every bar arranges second wire;
Described solar battery cell comprises: the solar battery cell of the first kind and the solar battery cell of Second Type, the solar battery cell of the described first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, lay respectively at the first semiconductor layer upper surface, and second semiconductor layer lower surface first, second electrode, the solar battery cell of wherein said Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, lay respectively at first of the first semiconductor layer lower surface and the second semiconductor layer upper surface, second electrode,
Wherein, for adjacent solar battery cell group, its type is different, for each of solar battery cell group separately, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.
Selectively, as required, described electric conducting material can cover the inner surface of whole described first wire group and the second wire group or described electric conducting material and only cover the first electrode and the first wire group of the second electrode by part and the inner surface of the second wire group.
Alternatively, the total current that produces of each solar battery group is roughly equal.
More preferably, the sidewall of described solar battery cell also has insulation side wall.
More preferably, described solar battery cell upper and lower surface also has insulating barrier, and described insulating barrier covers the surface of the second semiconductor layer outside the surface of the first semiconductor layer outside the first electrode and the second electrode.
More preferably, the electric current that solar battery cell in the electric current that solar battery cell in 2n-1 solar battery cell group produces and 2n solar battery cell group produces is roughly equal, 1 ﹦ <n ﹤ ﹦ [(N+1)/2].
More preferably, described first wire group is at described propping bar upper surface substantially wave-like, and wave crest portions protrudes from the first propping bar edge to contact with described electrode; Described second wire group is at described propping bar lower surface substantially wave-like, and wave crest portions protrudes from the second propping bar edge to contact with described electrode.Described wave crest portions is connected with bonding plate.
More preferably, wherein the first propping bar group comprises two the first propping bars, lays respectively at the both sides of solar battery array upper surface and outside the electrode being placed in described battery unit, contacts with each described battery unit.
More preferably, wherein the second propping bar group comprises two the second propping bars, lays respectively at the both sides of solar battery array lower surface and outside the electrode being placed in described battery unit, contacts with each described battery unit.
For above-mentioned series-connected solar cells, can further include battery glued membrane, described battery glued membrane wraps up described serial solar energy battery and the gap be present between described solar battery cell.
In the present invention, each solar battery group can comprise the solar battery cell of identical or different quantity.
Different from existing solar battery structure, each solar battery cell in solar battery array of the present invention is independently, thus can configure the area of solar cell as required easily.And existing solar battery sheet is carried out in the technique of bus processing, be the technology adopting silk screen printing, because cell piece is integral structure, the electric conducting material being therefore positioned at one side can not penetrate into another side due to printing.But this technology can not be applied to the present invention, battery unit of the present invention is independently, and silk screen printing can cause the electric conducting material of solar battery cell one side penetrate into another side when printing thus the performance of solar cell is affected.And utilize the method for the connecting material bus of formation solar cell of the present invention, the generation of above-mentioned situation can be avoided, under the prerequisite not affecting solar cell properties, make solar cell more easily be configured according to actual needs, reduce manufacturing cost simultaneously.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (2)

1. a serial solar energy battery, comprising:
Solar battery array, comprises the N number of solar battery cell group be set up in parallel, each solar battery cell group comprise one independently or multiple be set up in parallel independently and the identical solar battery cell of type;
First wire group, is arranged on the upper surface of described solar battery array, and described first wire group comprises one or more the first wire blocked;
Second wire group, be arranged on described solar battery array lower surface and and described first wire group interval arrange, described second wire group comprises one or more the second wire blocked;
Described solar battery cell comprises: the solar battery cell of the first kind and the solar battery cell of Second Type, the solar battery cell of the described first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, lay respectively at the first semiconductor layer upper surface, and second semiconductor layer lower surface first, second electrode, the solar battery cell of described Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, lay respectively at first of the first semiconductor layer lower surface and the second semiconductor layer upper surface, second electrode,
Wherein, for adjacent solar battery cell group, its type is different, for each of solar battery cell group separately, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.
2. a serial solar energy battery, comprising:
Solar battery array, comprises the N number of solar battery cell group be set up in parallel, each solar battery cell group comprise one independently or multiple be set up in parallel independently and the identical solar battery cell of type;
First propping bar group, described first propping bar group comprises the first propping bar that one or more non-conducting material is formed, and described propping bar is arranged on solar battery array upper surface;
First wire group, described first wire group comprises the first wire that is corresponding with the first propping bar number, that block, and propping bar upper surface described in every bar arranges first wire;
Second propping bar group, described second propping bar group comprises the second propping bar that one or more non-conducting material is formed, and described propping bar is arranged on solar battery array lower surface;
Second wire group, described second wire group comprises the second wire that is corresponding with the second propping bar number, that block, and propping bar lower surface described in every bar arranges second wire;
Described solar battery cell comprises: the solar battery cell of the first kind and the solar battery cell of Second Type, the solar battery cell of the described first kind comprises: the first semiconductor layer, be positioned at the second semiconductor layer below, lay respectively at the first semiconductor layer upper surface, and second semiconductor layer lower surface first, second electrode, the solar battery cell of wherein said Second Type comprises: the first semiconductor layer, be positioned at the second semiconductor layer above, lay respectively at first of the first semiconductor layer lower surface and the second semiconductor layer upper surface, second electrode,
Wherein, for adjacent solar battery cell group, its type is different, for each of solar battery cell group separately, second electrode of its first electrode and the solar battery cell group of its side is covered by described first wire group and to be connected and its first electrode is not connected by described first wire group with the second electrode of the solar battery cell group of its opposite side, first electrode of the solar battery cell group of its this opposite side of second electrode and its is covered by described second wire group and to be connected and the first electrode of the solar battery cell group of its this side of second electrode and its is not connected by described second wire group.
CN201310664717.1A 2013-12-09 2013-12-09 A kind of serial solar energy battery and forming method thereof Expired - Fee Related CN104701402B (en)

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CN102299187A (en) * 2010-06-25 2011-12-28 富士迈半导体精密工业（上海）有限公司 Flexible solar cell device
CN202549853U (en) * 2012-01-13 2012-11-21 比亚迪股份有限公司 Solar battery module
CN203055952U (en) * 2012-12-25 2013-07-10 云南拓日科技有限公司 Novel solar photovoltaic module
CN103367509A (en) * 2012-04-06 2013-10-23 聚日（苏州）科技有限公司 Solar cell and formation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102299187A (en) * 2010-06-25 2011-12-28 富士迈半导体精密工业（上海）有限公司 Flexible solar cell device
CN202549853U (en) * 2012-01-13 2012-11-21 比亚迪股份有限公司 Solar battery module
CN103367509A (en) * 2012-04-06 2013-10-23 聚日（苏州）科技有限公司 Solar cell and formation method thereof
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