CN212062449U - Flexible silicon-based battery module that can curl - Google Patents
Flexible silicon-based battery module that can curl Download PDFInfo
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- CN212062449U CN212062449U CN201921495918.2U CN201921495918U CN212062449U CN 212062449 U CN212062449 U CN 212062449U CN 201921495918 U CN201921495918 U CN 201921495918U CN 212062449 U CN212062449 U CN 212062449U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 37
- 239000010703 silicon Substances 0.000 title claims abstract description 37
- 239000004831 Hot glue Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000010030 laminating Methods 0.000 claims abstract description 6
- 239000011241 protective layer Substances 0.000 claims abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 5
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 0.000 claims description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 7
- 229910052731 fluorine Inorganic materials 0.000 claims description 7
- 239000011737 fluorine Substances 0.000 claims description 7
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 239000002033 PVDF binder Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 claims description 6
- 229920006255 plastic film Polymers 0.000 claims description 6
- 239000011112 polyethylene naphthalate Substances 0.000 claims description 6
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 5
- 101001073212 Arabidopsis thaliana Peroxidase 33 Proteins 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 101001123325 Homo sapiens Peroxisome proliferator-activated receptor gamma coactivator 1-beta Proteins 0.000 claims description 3
- 102100028961 Peroxisome proliferator-activated receptor gamma coactivator 1-beta Human genes 0.000 claims description 3
- 229920003182 Surlyn® Polymers 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 14
- 239000000377 silicon dioxide Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 9
- 239000010408 film Substances 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 5
- 235000012431 wafers Nutrition 0.000 description 5
- KTSFMFGEAAANTF-UHFFFAOYSA-N [Cu].[Se].[Se].[In] Chemical compound [Cu].[Se].[Se].[In] KTSFMFGEAAANTF-UHFFFAOYSA-N 0.000 description 4
- 229910021417 amorphous silicon Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910007116 SnPb Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
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- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
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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
Abstract
The utility model discloses a flexible silicon-based battery module that can curl, it includes: the flexible back plate, the first hot melt adhesive, the big battery cluster, the second hot melt adhesive, flexible front bezel, wherein big battery cluster includes a plurality of small square batteries that silicon-based battery cutting formed, and the surface laminating of every small square battery has the protective layer, and the small square battery passes through metal connecting wire series connection and becomes the small battery cluster, fixes and insulates through the insulated wire between the adjacent small battery cluster, and the small battery cluster is parallelly connected and is formed standard battery, and standard battery carries out cluster, parallel connection and forms big battery cluster. The utility model discloses, cut into small square battery with the silica-based battery of large-wafer earlier, later the series-parallel connection again, keep certain clearance between every small square battery after the connection, protect at the surperficial laminating hard material of battery simultaneously for the module can freely buckle and curl, and buckle and curl the in-process battery and not ftracture, make silica-based battery realize the flexible function of curling in the true sense.
Description
Technical Field
The utility model relates to a solar cell prepares the field, especially relates to a flexible silicon-based battery module that can curl.
Background
At present, the silicon-based solar cell is generally packaged into a module by glass, the flexible bending function cannot be realized, and partial manufacturers try to directly package the silicon-based solar cell by adopting flexible front plate and flexible back plate materials, but the bending degree is limited, silicon wafer breakage is easily caused, and the function of semi-flexibility can only be realized.
Compared with the glass rigid module, the flexible module has the advantages of light weight, low installation cost, wider application range and the like. The existing flexible solar cells mainly comprise amorphous silicon flexible solar cells and Copper Indium Gallium Selenide (CIGS) thin film flexible solar cells, the efficiency of the amorphous silicon flexible solar cells is obviously low, the maximum efficiency at present is not more than 10%, the commercial application is very limited, and amorphous silicon flexible cell manufacturers represented by United states solar have announced that the production is broken several years ago. The Copper Indium Gallium Selenide (CIGS) thin film flexible solar cell is very high in production cost, more than twice the cost of the existing silicon-based solar cell, and cannot be well popularized at present.
However, through development of silicon-based solar cells for many years, cost reduction is remarkable, at present, a part of photovoltaic enterprises adopt glass packaged rigid modules to declare that flat-price internet surfing can be achieved, but silicon wafers are fragile, and particularly when the silicon wafers are large in size, the silicon wafers are easy to break after being bent, so that the silicon wafers cannot be packaged into flexible modules which can be bent in the true sense.
SUMMERY OF THE UTILITY MODEL
For solving the defect among the prior art, the utility model provides a flexible silicon-based battery module that can curl, its flexible flexibility, light in weight occupies for a short time, accomodates the convenience.
In order to achieve the above purpose, the utility model adopts the following design scheme:
a flexible, crimpable silicon-based battery module comprising: the flexible back plate, the first hot melt adhesive, the big battery cluster, the second hot melt adhesive, flexible front bezel, wherein big battery cluster includes a plurality of small square batteries that silicon-based battery cutting formed, and the surface laminating of every small square battery has the protective layer, and the small square battery passes through metal connecting wire series connection and becomes the small battery cluster, fixes and insulates through the insulated wire between the adjacent small battery cluster, and the small battery cluster is parallelly connected and is formed standard battery, and standard battery carries out cluster, parallel connection and forms big battery cluster.
Preferably, the cut small square battery has a length of 1-100mm and a width of 1-100 mm.
Preferably, the metal connecting line is an FPCB soft welding strip or a tinned copper strip, the gap between small battery strings connected through the metal connecting line is 0.1-3mm, and each small battery string is composed of 2-50 small square batteries.
Preferably, the protective layer is a hard material layer which can be a glass, PC, PMMA, PP, PET or transparent fluorine material layer, and the thickness of the protective layer is 0.2-2 mm.
Preferably, the positive and negative electrodes of the standard batteries are connected when the standard batteries are connected in series to form a large battery string.
Preferably, when the standard cells are connected in parallel to form a large cell string, the positive and negative connection lines of the small cell string are connected to the bus bars, respectively, to form the positive and negative connection lines of the standard cells.
Preferably, the bus bar is welded by using a double-layer welding strip.
Preferably, the silicon-based battery is one of a monocrystalline silicon battery, a polycrystalline silicon battery, a silicon-based heterojunction, a PERC, a PERL, a PERT, a TOPCOM, an IBC or an HBC.
Preferably, the flexible back plate is one of plastic film ETFE, PI, PET, PEN, PVDF or a composite film of a fluorine-containing material, and the flexible front plate is one of plastic film ETFE, PET, PEN, transparent PVDF or a transparent composite film of a fluorine-containing material.
Preferably, the first hot melt adhesive and the second hot melt adhesive are one of EVA, Surlyn and POE.
The utility model adopts the above design scheme, cut into small square battery with the silica-based battery of large-piece earlier, later the series-parallel connection again, keep certain clearance between every small square battery after the connection, laminate hard material at the surface of battery simultaneously and protect for the module can freely buckle and curl, can realize that the diameter of curling is less than 4CM power and do not attenuate, and buckle and curl the in-process battery and do not ftracture, make silica-based battery realize the flexible function of curling in the true sense. The flexible silicon-based battery module that can curl of its preparation is flexible, light in weight, and the occupation is little, accomodates the convenience, and different scenes such as sunshade, sunshine room, sunshade on the ship, car as a house roof more are applicable to and are used in the electricity generation.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic sectional view of a battery module according to the present invention;
fig. 2 is a schematic front structural view of the battery module of the present invention;
fig. 3 is a schematic diagram of the silicon-based battery module of the present invention cut into small square batteries;
FIG. 4 is a schematic structural view of the cut and separated small square batteries of the present invention;
FIG. 5 is a schematic structural view of the alignment and positioning of the small square batteries after being arranged in a string with the FPCB welding strip;
FIG. 6 is a schematic structural view of the small square battery of the present invention after welding FPCB solder strips on the front and back sides thereof;
fig. 7 is a schematic structural view of the small battery string of the present invention with a hard glass plate attached to the front surface;
fig. 8 is a schematic side view of the standard battery formed by connecting the small batteries of the protective block in series and parallel;
fig. 9 is a schematic front structural view of the small battery strings connected in parallel to form the large battery string 100;
fig. 10 is a schematic front structural view of the small battery strings connected in parallel to form the large battery string 100;
fig. 11 is a schematic front structural diagram of the small battery string of the protection block of the present invention connected in series-parallel connection to form a large battery string 100.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, the utility model discloses a flexible silicon-based battery module that can curl, it includes that flexible backplate 20, first hot melt adhesive 30, big battery cluster 100, second hot melt adhesive are 40, flexible front bezel 50 pile up and lay, and the lamination forms, wherein big battery cluster 100 includes a plurality of small square batteries 1 that silicon-based battery cutting formed, and the surface laminating of every small square battery 1 has the protective layer, and small square battery passes through the metal connecting wire series connection and becomes the little battery cluster, fixes and insulates through the insulated wire between the adjacent little battery cluster, and the parallelly connected standard cell that forms of little battery cluster, and standard cell carries out cluster, parallel connection and forms big battery cluster.
As shown in fig. 3, the large battery string 100 is manufactured by the following method: cutting the battery into small square batteries 1 in a laser cutting mode, wherein the length of each small square battery 1 is 12mm, the width of each small square battery 1 is 8mm, and the positive electrode and the negative electrode of each small square battery are arranged at one end of the front surface and the back surface of the battery, so that short circuit caused by mutual contact of welded welding strips is prevented; as shown in fig. 4, the cut solar cell is not completely separated, the solar cell is attached to a low-viscosity BOC blue film 7, the blue film is expanded by a crystal expanding machine to naturally separate the small cell (or the small cell is separated by a carrying disc after being directly picked without using the blue film), as shown in fig. 5, an FPCB solder strip 2 is attached to an adhesive protective film 8, fixed on an automatic arrangement jig 9, the small cell is arranged in sequence by an automatic arrangement device, two thin glass sheets are positioned and fixed and then welded by a reflow machine (or an overheating flow channel after the small chip double-hole vacuum adsorption arrangement jig made of non-heat-conducting resin is arranged by the automatic arrangement device), 13 small square cells 1 are connected to form a small cell string, the gap between the small square cells 1 is 0.1-1.0mm, as shown in fig. 6, when the solder strip 2 is connected to the front and back, the short circuit of the positive and negative circuit of the FPCB solder strip 2 is avoided, the width of the FPCB solder strip 2 is 0.6mm, the thickness is 0.12mm, and the surface is coated with a SnPb alloy layer with the thickness of 25 um; as shown in fig. 7, optical silica gel 3 is adopted, hard material transparent glass 4 is attached to the front light incident surface of the small square battery 1, the optical silica gel 3 is solidified at the temperature of 150 ℃ for 20 minutes, and the thickness of the transparent glass 4 is 0.33 mm; as shown in fig. 8, the small square batteries 1 attached with the transparent glass 4 are connected in parallel to form a standard battery 10, the gap between the small square batteries 1 in the standard battery 10 is 0.1-1.0mm, when the small square batteries 1 are connected in parallel to form the standard battery 10, the positive and negative connecting wires of the small battery strings are respectively connected to the bus bars 6 to form the positive and negative connecting wires of the standard battery 10, the bus bars 6 are tinned copper strips, the width is 2mm, and the thickness is 0.3 mm; as shown in fig. 9, the standard batteries 10 are connected in series and parallel by 20 to form a large battery string 100(20 parallel); as shown in fig. 10, the standard batteries 10 are connected in series by 20 strings to form a large battery string 100(20 strings); as shown in fig. 11, the large battery string 100 is produced by connecting 5 groups of standard batteries 10 in series-parallel into a group and 4 groups in series-parallel into a large battery string 100 (5-parallel 4 strings).
The silicon-based battery can also be one of a monocrystalline silicon battery, a polycrystalline silicon battery, a silicon-based heterojunction, PERC, PERL, PERT, TOPCOM, IBC or HBC. The flexible back plate can also be one of plastic film ETFE, PI, PET, PEN, PVDF or composite film of fluorine-containing material, and the flexible front plate is one of plastic film ETFE, PET, PEN, transparent PVDF or transparent composite film of fluorine-containing material. The first hot melt adhesive and the second hot melt adhesive can also be one of EVA, Surlyn and POE.
The utility model discloses cut into small square battery with the silica-based battery of large-piece earlier, later reuse FPCB welds and takes series-parallel connection, keeps certain clearance between every small square battery after the connection, and the surface laminating hard material at the battery protects simultaneously for the module can freely buckle and curl, can realize that the crimp diameter is less than 4CM power and does not attenuate, and buckles and curl the in-process battery and do not ftracture, makes silica-based battery module can realize that flexibility is curled.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A flexible silicon-based battery module that can curl, its characterized in that, it includes: the flexible back plate, the first hot melt adhesive, the big battery cluster, the second hot melt adhesive, flexible front bezel, wherein big battery cluster includes a plurality of small square batteries that silicon-based battery cutting formed, and the surface laminating of every small square battery has the protective layer, and the small square battery passes through metal connecting wire series connection and becomes the small battery cluster, fixes and insulates through the insulated wire between the adjacent small battery cluster, and the small battery cluster is parallelly connected and is formed standard battery, and standard battery carries out cluster, parallel connection and forms big battery cluster.
2. The flexible, crimpable, silicon-based battery module of claim 1, wherein: the length of the cut small square battery is 1-100mm, and the width of the cut small square battery is 1-100 mm.
3. The flexible, crimpable, silicon-based battery module of claim 1, wherein: the metal connecting wire is an FPCB flexible welding strip or a tinned copper strip, the gap between small battery strings connected through the metal connecting wire is 0.1-3mm, and each small battery string is composed of 2-50 small square batteries.
4. The flexible, crimpable, silicon-based battery module of claim 1, wherein: when the standard batteries are connected in series to form a large battery string, the positive and negative electrodes of the standard batteries are connected.
5. The flexible, crimpable, silicon-based battery module of claim 1, wherein: and when the standard batteries are connected in parallel to form a large battery string, the positive and negative connecting wires of the small battery string are respectively connected to the bus bars to form the positive and negative connecting wires of the standard batteries.
6. The flexible, crimpable, silicon-based battery module of claim 5, wherein: the bus bar is welded by adopting double layers of welding strips.
7. The flexible, crimpable, silicon-based battery module of claim 1, wherein: the silicon-based battery is one of a monocrystalline silicon battery, a polycrystalline silicon battery, a silicon-based heterojunction, PERC, PERL, PERT, TOPCOM, IBC or HBC.
8. The flexible, crimpable, silicon-based battery module of claim 1, wherein: the flexible back plate is one of plastic film ETFE, PI, PET, PEN, PVDF or composite film of fluorine-containing material, and the flexible front plate is one of plastic film ETFE, PET, PEN, transparent PVDF or transparent composite film of fluorine-containing material.
9. The flexible, crimpable, silicon-based battery module of claim 1, wherein: the first hot melt adhesive and the second hot melt adhesive are one of EVA, Surlyn and POE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921495918.2U CN212062449U (en) | 2019-09-10 | 2019-09-10 | Flexible silicon-based battery module that can curl |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921495918.2U CN212062449U (en) | 2019-09-10 | 2019-09-10 | Flexible silicon-based battery module that can curl |
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| Publication Number | Publication Date |
|---|---|
| CN212062449U true CN212062449U (en) | 2020-12-01 |
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| CN201921495918.2U Active CN212062449U (en) | 2019-09-10 | 2019-09-10 | Flexible silicon-based battery module that can curl |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115148833A (en) * | 2021-03-30 | 2022-10-04 | 金阳(泉州)新能源科技有限公司 | FPCB/FCCL replaces tin-plated copper solder strip as photovoltaic module bus bar |
-
2019
- 2019-09-10 CN CN201921495918.2U patent/CN212062449U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115148833A (en) * | 2021-03-30 | 2022-10-04 | 金阳(泉州)新能源科技有限公司 | FPCB/FCCL replaces tin-plated copper solder strip as photovoltaic module bus bar |
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Effective date of registration: 20211101 Address after: 362000 Wujiang Road, Sunwu community, Haibin street, Licheng District, Quanzhou City, Fujian Province Patentee after: Jinyang (Quanzhou) New Energy Technology Co.,Ltd. Address before: 362000 3rd floor, building 3, No. 1303, high tech park, Nanhuan Road, Licheng District, Quanzhou City, Fujian Province Patentee before: FUJIAN POWER BOOSTER ELECTRONIC TECHNOLOGY CO.,LTD. |