CN115295655A - IBC battery pack and manufacturing method thereof - Google Patents
IBC battery pack and manufacturing method thereof Download PDFInfo
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- CN115295655A CN115295655A CN202211220890.8A CN202211220890A CN115295655A CN 115295655 A CN115295655 A CN 115295655A CN 202211220890 A CN202211220890 A CN 202211220890A CN 115295655 A CN115295655 A CN 115295655A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 104
- 239000002313 adhesive film Substances 0.000 claims abstract description 22
- 239000011521 glass Substances 0.000 claims abstract description 15
- 230000010062 adhesion mechanism Effects 0.000 claims abstract description 14
- 238000010030 laminating Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000002390 adhesive tape Substances 0.000 claims description 72
- 229910000679 solder Inorganic materials 0.000 claims description 40
- 239000000758 substrate Substances 0.000 claims description 10
- 239000004831 Hot glue Substances 0.000 claims description 8
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052709 silver Inorganic materials 0.000 abstract description 20
- 239000004332 silver Substances 0.000 abstract description 20
- 239000010410 layer Substances 0.000 description 12
- 229910001128 Sn alloy Inorganic materials 0.000 description 11
- 238000005476 soldering Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 229910052797 bismuth Inorganic materials 0.000 description 7
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 7
- 229910052738 indium Inorganic materials 0.000 description 7
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 7
- 238000010073 coating (rubber) Methods 0.000 description 6
- 239000011247 coating layer Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000003475 lamination Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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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
- H01L31/0512—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 made of a particular material or composition of materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- 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
- H01L31/048—Encapsulation of modules
- H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
-
- 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
- H01L31/048—Encapsulation of modules
- H01L31/049—Protective back sheets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Mechanical Engineering (AREA)
- Primary Cells (AREA)
Abstract
The invention discloses an IBC battery pack which comprises an IBC type battery and a welding strip arranged between a positive electrode and a negative electrode on the back of the battery, wherein an upper-layer adhesive film layer and glass are sequentially arranged on the front of the battery from inside to outside, and a lower-layer adhesive film layer and a cover plate covering the welding strip are sequentially arranged on the back of the battery from inside to outside. The battery welding structure is characterized by further comprising an adhesion mechanism arranged between the welding strip and the battery, and the adhesion mechanism is adhered to the battery after the welding strip is wrapped from the outer side so as to fix the welding strip on the battery. The bonding mechanism is used for fixing the welding strip on the battery, so that a main grid is avoided, the use amount of silver paste is reduced, and the cost is reduced. The manufacturing method comprises the following steps: s1, fixing a welding strip, S2, laying an adhesive film, S3, laying glass and a cover plate, S4 laminating and S5 assembling components.
Description
Technical Field
The invention relates to the field of IBC battery packs, in particular to an IBC battery pack and a manufacturing method thereof.
Background
The positive electrode and the negative electrode on the back of the IBC battery are both silver paste, and the consumption of silver is high, so that the cost is high. The reduction of silver paste consumption and photovoltaic module cost are problems that technical personnel in the field urgently need to solve.
Disclosure of Invention
The present invention is directed to an IBC battery pack and a method for manufacturing the same, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a IBC battery pack, includes IBC type battery and sets up the area of welding between the positive negative pole in the battery back, the front of battery has set gradually upper strata rete and glass from inside to outside, and the back of battery has set gradually the lower floor rete and the apron that the area was welded in the cover from inside to outside.
The battery welding device further comprises an adhesion mechanism arranged between the welding strip and the battery, and the adhesion mechanism is adhered to the battery after the welding strip is wrapped from the outer side so as to fix the welding strip on the battery. The bonding mechanism is used for fixing the welding strip on the battery, so that a main grid is avoided, the use amount of silver paste is reduced, and the cost is reduced.
Preferably, the bonding mechanism is an adhesive tape, the adhesive tape wraps the outer side of the welding strip, and two sides of the adhesive tape along the length direction are bonded on the battery. The fixation is performed by means of adhesive tape.
Preferably, the adhesive tape comprises a PET substrate and a high-performance pressure-sensitive adhesive or hot melt adhesive arranged at one end of the PET substrate close to the welding tape.
Preferably, the adhesive tape is strip-shaped along the length direction of the solder strip. Arranged along the length direction of the solder strip.
Preferably, the adhesive tape is in a strip shape of a vertical welding strip, and the adhesive tape spans a plurality of parallel welding strips. The adhesive tape is vertically welded to the strip and spans a plurality of the adhesive tapes.
Preferably, the adhesive tape is block-shaped, and a plurality of adhesive tapes are arranged on each welding strip along the length direction. And the small blocks are arranged along the length direction of the solder strip.
Preferably, the adhesive tape is in a whole block shape covering all the welding tapes, and the adhesive tape is provided with air holes.
Preferably, the solder strip is a low temperature solder strip. The middle of the low-temperature welding strip is made of copper, the outer side of the low-temperature welding strip is made of soldering tin alloy, and the soldering tin alloy at least contains one or more of lead, bismuth, silver and indium and can reduce the melting point.
A method for manufacturing the IBC cell assembly described above, comprising the steps of:
s1: fixing the welding strip: fixing the welding strip on the back of the battery through an adhesive tape to form a mounting base body;
s2: laying an adhesive film: laying an upper adhesive film layer on the base body in the step S1, and laying a lower adhesive film layer under the base body;
s3: laying glass and cover plates: laying glass on the upper adhesive film layer, and laying a cover plate on the lower adhesive film layer to form a combined body;
s4: laminating: laminating the combined body formed in the step S3 through a laminating machine and heating at the same time;
s5: assembly of components: the relevant components and the laminated product in step S4 are assembled.
Preferably, the step S1 includes the steps of (a) preparing a composite: bonding a solder tape and an adhesive tape to form a composite, (b) connecting a battery: and adhering the composite body to the battery to form a matrix, wrapping the welding strip by the adhesive tape from the outer side, and adhering the two sides to the battery.
Preferably, the step S1 includes the steps of: (b) battery placement: placing the battery horizontally, (c) placing the welding strip: placing welding strips on the battery in sequence, (d) bonding adhesive tapes: the adhesive tape wraps the solder strip from the outside and is adhered to the battery.
Preferably, the lamination temperature in the step S4 is 120 to 160 ℃. The specific lamination temperature is determined by the presence or absence or the content of lead, bismuth, silver, and indium in the solder alloy.
Compared with the prior art, the invention has the beneficial effects that:
1. the main grid is omitted, the adhesive tape is connected with the welding tape, the using amount of silver paste is reduced, and the cost is reduced;
2. compared with the traditional welding of the main grid and the welding strip, the low-temperature welding strip is adopted, and the heating can be directly carried out during lamination, so that the welding is more convenient;
3. the flux is not needed, and the yellowing risk caused by outdoor long-term aging of the flux and other materials is reduced.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a third embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a fourth embodiment of the present invention;
FIG. 6 is a first flowchart of the manufacturing method of the present invention;
FIG. 7 is a second flowchart of the manufacturing method of the present invention;
FIG. 8 is a drawing diagram of a battery after the tape has been secured in accordance with the present invention;
fig. 9 is a schematic view showing the connection between the battery and the adhesive tape according to the present invention.
In the figure: 1. a battery; 2. welding a strip; 3. an upper adhesive film layer; 4. glass; 5. a lower adhesive film layer; 6. a cover plate; 7. an adhesive tape; 8. and (4) air holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 2, the present invention provides an IBC battery assembly and a method for manufacturing the same, wherein: the utility model provides a IBC battery pack, includes IBC type battery 1 and sets up the area 2 that welds between the positive negative pole in battery 1 back, and the front of battery 1 has set gradually upper rubber coating layer 3 and glass 4 from inside to outside, and the back of battery 1 has set gradually lower floor's rubber coating layer 5 and apron 6 that covers and weld area 2 from inside to outside.
The battery welding device further comprises an adhesion mechanism arranged between the welding strip 2 and the battery 1, and the adhesion mechanism wraps the welding strip 2 from the outer side and then adheres to the battery 1 to fix the welding strip 2 on the battery 1. The outer side here refers to the end of the solder ribbon 2 away from the battery 1, one end being attached to the end of the battery 1, and the opposite end being the outer side. The bonding mechanism is used for fixing the solder strip 2 on the battery 1, so that a main grid is avoided, the use amount of silver paste is reduced, and the cost is reduced.
The bonding mechanism is an adhesive tape 7, the adhesive tape 7 is wrapped on the outer side of the welding strip 2, and two sides of the adhesive tape 7 along the length direction are bonded on the battery 1. The fixation is performed by means of adhesive tape 7. The adhesive tape 7 comprises a PET substrate and a high-performance pressure-sensitive adhesive or hot melt adhesive arranged at one end of the PET substrate close to the welding strip 2. The adhesive tape 7 is in the form of a strip along the length of the solder strip 2. Arranged along the length of the solder strip 2.
The solder strip 2 is a low temperature solder strip. The low-temperature welding strip is characterized in that the middle of the low-temperature welding strip is made of copper, the outer side of the low-temperature welding strip is made of soldering tin alloy, and the soldering tin alloy at least contains one or more of lead, bismuth, silver and indium and can reduce the melting point.
Example 2
Referring to fig. 3, the present invention provides an IBC battery pack and a method for manufacturing the same, comprising: the utility model provides a IBC battery pack, includes IBC type battery 1 and sets up the area 2 that welds between the positive negative pole in battery 1 back, and the front of battery 1 has set gradually upper rubber coating layer 3 and glass 4 from inside to outside, and the back of battery 1 has set gradually lower floor's rubber coating layer 5 and apron 6 that covers and weld area 2 from inside to outside.
The battery welding device further comprises an adhesion mechanism arranged between the welding strip 2 and the battery 1, and the adhesion mechanism wraps the welding strip 2 from the outer side and then adheres to the battery 1 to fix the welding strip 2 on the battery 1. The outer side here refers to the end of the solder ribbon 2 away from the battery 1, one end being attached to the end of the battery 1, and the opposite end being the outer side. Bonding mechanism is used for fixing welding strip 2 on battery 1 to avoid using the main grid, reduce silver thick liquid use amount, reduce cost.
The bonding mechanism is an adhesive tape 7, the adhesive tape 7 wraps the outer side of the welding strip 2, and two sides of the adhesive tape 7 along the length direction are bonded on the battery 1. The fixation is performed by means of an adhesive tape 7. The adhesive tape 7 comprises a PET matrix and a high-performance pressure-sensitive adhesive or a hot melt adhesive, wherein the high-performance pressure-sensitive adhesive or the hot melt adhesive is arranged at one end, close to the welding strip 2, of the PET matrix. The adhesive tape 7 is in a strip shape perpendicular to the solder strips 2, and the adhesive tape 7 spans a plurality of parallel solder strips 2. The adhesive tape 7 is vertically welded to the tape 2 and spans a plurality of tapes.
The solder strip 2 is a low temperature solder strip. The low-temperature welding strip is characterized in that the middle of the low-temperature welding strip is made of copper, the outer side of the low-temperature welding strip is made of soldering tin alloy, and the soldering tin alloy at least contains one or more of lead, bismuth, silver and indium and can reduce the melting point.
Example 3
Referring to fig. 4, the present invention provides an IBC battery pack and a method for manufacturing the same, comprising: the utility model provides a IBC battery pack, includes IBC type battery 1 and sets up the solder strip 2 between the positive negative pole in battery 1 back, and the front of battery 1 has set gradually upper glue film layer 3 and glass 4 from inside to outside, and the back of battery 1 has set gradually lower floor's glue film layer 5 and the apron 6 that covers solder strip 2 from inside to outside.
The welding device further comprises an adhesion mechanism arranged between the welding strip 2 and the battery 1, and the adhesion mechanism wraps the welding strip 2 from the outer side and then adheres to the battery 1 to fix the welding strip 2 on the battery 1. The outer side here refers to the end of the solder ribbon 2 away from the battery 1, one end being attached to the end of the battery 1, and the opposite end being the outer side. The bonding mechanism is used for fixing the solder strip 2 on the battery 1, so that a main grid is avoided, the use amount of silver paste is reduced, and the cost is reduced.
The bonding mechanism is an adhesive tape 7, the adhesive tape 7 is wrapped on the outer side of the welding strip 2, and two sides of the adhesive tape 7 along the length direction are bonded on the battery 1. The fixation is performed by means of an adhesive tape 7. The adhesive tape 7 comprises a PET substrate and a high-performance pressure-sensitive adhesive or hot melt adhesive arranged at one end of the PET substrate close to the welding strip 2. The adhesive tape 7 is block-shaped, and a plurality of adhesive tapes 7 are provided on each of the solder strips 2 in the longitudinal direction. And a plurality of small blocks arranged along the length direction of the solder strip 2.
The solder strip 2 is a low temperature solder strip. The low-temperature welding strip is characterized in that the middle of the low-temperature welding strip is made of copper, the outer side of the low-temperature welding strip is made of soldering tin alloy, and the soldering tin alloy at least contains one or more of lead, bismuth, silver and indium and can reduce the melting point.
Example 4
Referring to fig. 5, the present invention provides an IBC battery pack and a method for manufacturing the same, comprising: the utility model provides a IBC battery pack, includes IBC type battery 1 and sets up the area 2 that welds between the positive negative pole in battery 1 back, and the front of battery 1 has set gradually upper rubber coating layer 3 and glass 4 from inside to outside, and the back of battery 1 has set gradually lower floor's rubber coating layer 5 and apron 6 that covers and weld area 2 from inside to outside.
The battery welding device further comprises an adhesion mechanism arranged between the welding strip 2 and the battery 1, and the adhesion mechanism wraps the welding strip 2 from the outer side and then adheres to the battery 1 to fix the welding strip 2 on the battery 1. The outer side here refers to the end of the welding strip 2 away from the battery 1, which is attached to the end of the battery 1, the opposite end being the outer side. Bonding mechanism is used for fixing welding strip 2 on battery 1 to avoid using the main grid, reduce silver thick liquid use amount, reduce cost.
The bonding mechanism is an adhesive tape 7, the adhesive tape 7 is wrapped on the outer side of the welding strip 2, and two sides of the adhesive tape 7 along the length direction are bonded on the battery 1. The fixation is performed by means of an adhesive tape 7. The adhesive tape 7 comprises a PET matrix and a high-performance pressure-sensitive adhesive or a hot melt adhesive, wherein the high-performance pressure-sensitive adhesive or the hot melt adhesive is arranged at one end, close to the welding strip 2, of the PET matrix. The adhesive tape 7 is in a whole block shape covering all the welding strips 2, and air holes 8 are formed in the adhesive tape 7.
The solder strip 2 is a low temperature solder strip. The low-temperature welding strip is characterized in that the middle of the low-temperature welding strip is made of copper, the outer side of the low-temperature welding strip is made of soldering tin alloy, and the soldering tin alloy at least contains one or more of lead, bismuth, silver and indium and can reduce the melting point.
A method for manufacturing the above IBC cell assembly, comprising the steps of:
s1: fixing a welding strip: the solder ribbon 2 is fixed to the back surface of the battery 1 by the tape 7 to form a mounting substrate, and specifically, the first method may include the following two methods: bonding the bonding tape 2 and the adhesive tape 7 to form a composite body, (b) battery connection: adhering the complex body to the battery 1 to form a substrate, wrapping the welding strip 2 with the adhesive tape 7 from the outside, adhering the two sides to the battery 1, and adhering the second mode to the battery 1, wherein the second mode comprises the following steps: (b) battery placement: placing the battery 1 horizontally, (c) placing a welding strip: placing welding strips 2 on the battery 1 in sequence, (d) bonding with adhesive tapes: the adhesive tape 7 wraps the solder ribbon 2 from the outside and adheres to the battery 1.
S2: laying an adhesive film: laying an upper adhesive film layer 3 on the base body in the step S1, and laying a lower adhesive film layer 5 under the base body;
s3: laying glass and cover plates: laying glass 4 on the upper adhesive film layer 3, and laying a cover plate 6 on the lower adhesive film layer 5 to form a combined body;
s4: laminating: and (4) laminating the combined product formed in the step (S3) by a laminating machine, and heating at the same time, wherein the laminating temperature is 120-160 ℃. The specific laminating temperature is determined according to the existence or content of lead, bismuth, silver and indium in the soldering tin alloy;
s5: assembly of the components: the relevant assembly and the laminated product in step S4 are assembled.
A 180 ° tensile test was performed by a tensile machine:
aiming at the common welding strip combined main grid, pad represents a welding pad point, and a welding tension test after welding is carried out as shown in figure 8;
the battery after the tape fixation is sampled from a plurality of positions, and the result is shown in fig. 9;
it can be seen from the comparison above that, the pulling force that the sticky tape produced is overall all to be greater than the intensity of welding area and main bars lug connection, that is to say, for being connected of original welding area and silver thick liquid, the joint strength of sticky tape and battery is higher, and under the condition of cost reduction, intensity still increases.
For the connection of solder strip to the main grid and solder strip to tape, the same battery and lighting environment, we measured the power as follows (test conditions: 1000W/m2, 25 ℃):
| technique of | Weld zone diameter/mm | Number of welding strips/root | Pmax（W） | Voc（V） | IscIsc（A） | Rs（Ω） | FF（％） | Im（A） | Vm（V） |
| Prior Art | 0.35 | 12 | 659.15 | 49.303 | 17.30 | 0.2509 | 77.29 | 16.51 | 39.93 |
| After optimization | 0.20 | 25 | 669.54 | 49.312 | 17.26 | 0.2081 | 78.66 | 16.50 | 40.57 |
Comparing the above figures, the test power is changed from 659.15 to 669.54, compared with the existing connection of the solder strip and the main grid, the connection of the adhesive tape and the solder strip is also improved, the composite loss of the silver paste of the main grid is not reduced, and the voltage is increased. The number of the solder strips is increased, the transmission distance from the auxiliary grid to the solder strips is shortened, and the resistance is reduced. Thus increasing the component power.
In conclusion, in tests 1 and 2, compared with the original connection of the solder strip and the main grid, the amount of silver paste is reduced through the connection of the adhesive tape and the solder strip, and meanwhile, the tensile strength and the power are both increased, thereby achieving three purposes.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (12)
1. An IBC battery pack, includes IBC type battery (1) and sets up welding area (2) between the positive negative pole of battery (1) back, its characterized in that: the front side of the battery (1) is sequentially provided with an upper-layer adhesive film layer (3) and glass (4) from inside to outside, and the back side of the battery (1) is sequentially provided with a lower-layer adhesive film layer (5) and a cover plate (6) which cover the welding strip (2) from inside to outside;
still including setting up the adhesion mechanism between welding area (2) and battery (1), adhesion mechanism bonds on battery (1) in order to fix welding area (2) on battery (1) from outside parcel welding area (2).
2. An IBC cell assembly according to claim 1, wherein: the bonding mechanism is an adhesive tape (7), the adhesive tape (7) wraps the outer side of the welding strip (2), and two sides of the adhesive tape (7) along the length direction are bonded on the battery (1).
3. An IBC cell assembly according to claim 2, wherein: the adhesive tape (7) comprises a PET substrate and a high-performance pressure-sensitive adhesive arranged at one end, close to the welding strip (2), of the PET substrate, or is a hot melt adhesive.
4. An IBC cell assembly according to claim 3, wherein: the adhesive tape (7) is in a strip shape along the length direction of the welding strip (2).
5. An IBC cell assembly according to claim 3, wherein: the adhesive tape (7) is in a strip shape perpendicular to the welding strips (2), and the adhesive tape (7) spans the plurality of parallel welding strips (2).
6. An IBC cell assembly according to claim 3, wherein: the adhesive tapes (7) are blocky, and the adhesive tapes (7) are arranged on each welding strip (2) along the length direction.
7. An IBC cell assembly according to claim 3, wherein: the adhesive tape (7) is in a whole block shape covering all the welding strips (2), and the adhesive tape (7) is provided with air holes (8).
8. An IBC cell assembly according to claim 1, wherein: the welding strip (2) is a low-temperature welding strip.
9. A method of manufacturing an IBC cell assembly according to any one of claims 2 to 8, comprising the steps of:
s1: fixing a welding strip: fixing the welding strip (2) on the back of the battery (1) through an adhesive tape (7) to form a mounting base body;
s2: paving an adhesive film: an upper adhesive film layer (3) is laid on the upper surface of the base body in the step S1, and a lower adhesive film layer (5) is laid on the lower surface of the base body;
s3: laying glass and cover plates: glass (4) is laid on the upper adhesive film layer (3), and a cover plate (6) is laid on the lower adhesive film layer (5) to form a combined body;
s4: laminating: laminating the combined body formed in the step S3 through a laminating machine, and heating at the same time;
s5: assembly of components: the relevant assembly and the laminated product in step S4 are assembled.
10. The method of making an IBC cell assembly according to claim 9, wherein: the step S1 includes the steps of (a) preparing a composite: bonding the solder tape (2) and the adhesive tape (7) to form a composite body, (b) connecting the battery: and adhering the complex body to the battery (1) to form a matrix, wrapping the welding strip (2) by the adhesive tape (7) from the outer side, and adhering the two sides to the battery (1).
11. The method of making an IBC cell assembly according to claim 9, wherein: the step S1 includes the steps of: (b) battery placement: placing the battery (1) horizontally, (c) placing a welding strip: placing welding strips (2) on the battery (1) in sequence, (d) bonding adhesive tapes: the adhesive tape (7) wraps the welding strip (2) from the outer side and is adhered to the battery (1).
12. The method of making an IBC cell assembly according to claim 9, wherein: the laminating temperature in the step S4 is 120-160 ℃.
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882497A (en) * | 2015-06-05 | 2015-09-02 | 中利腾晖光伏科技有限公司 | Grid-shaped electrode solar cell |
| CN208093576U (en) * | 2018-05-14 | 2018-11-13 | 泰州隆基乐叶光伏科技有限公司 | A kind of compound substrate welding |
| CN110828600A (en) * | 2019-12-12 | 2020-02-21 | 浙江晶科能源有限公司 | IBC battery pack and manufacturing method thereof |
| CN110993733A (en) * | 2019-12-04 | 2020-04-10 | 通威太阳能（合肥）有限公司 | Photovoltaic module manufacturing method |
| CN111162136A (en) * | 2020-01-17 | 2020-05-15 | 浙江晶科能源有限公司 | IBC battery pack and manufacturing method thereof |
| CN113066885A (en) * | 2021-03-18 | 2021-07-02 | 苏州沃特维自动化系统有限公司 | Series photovoltaic cell assembly and packaging method thereof |
| CN214956902U (en) * | 2021-06-30 | 2021-11-30 | 青海黄河上游水电开发有限责任公司西宁太阳能电力分公司 | IBC back contact assembly of high-efficient high reliability of full black |
| CN113851550A (en) * | 2021-07-28 | 2021-12-28 | 天合光能股份有限公司 | Solar cell string and preparation method and application thereof |
| CN113851549A (en) * | 2021-07-28 | 2021-12-28 | 天合光能股份有限公司 | Solar cell string and preparation method and application thereof |
| CN215418193U (en) * | 2021-04-13 | 2022-01-04 | 苏州阿特斯阳光电力科技有限公司 | Battery piece and photovoltaic module with same |
| CN215815896U (en) * | 2021-07-27 | 2022-02-11 | 陕西众森电能科技有限公司 | Solar cell module |
| CN114068733A (en) * | 2020-08-10 | 2022-02-18 | 苏州阿特斯阳光电力科技有限公司 | Battery piece and photovoltaic module with same |
| CN114068734A (en) * | 2021-11-11 | 2022-02-18 | 任佳新 | Manufacturing method of photovoltaic cell assembly |
| CN114068735A (en) * | 2021-11-11 | 2022-02-18 | 任佳新 | Manufacturing method of heterojunction photovoltaic cell assembly |
| CN114864721A (en) * | 2022-04-27 | 2022-08-05 | 浙江爱康光电科技有限公司 | Main-grid-free photovoltaic module, preparation method thereof and welding strip welding method |
| CN217280809U (en) * | 2022-04-27 | 2022-08-23 | 浙江爱康光电科技有限公司 | No main grid photovoltaic module with film |
| CN114975663A (en) * | 2022-04-29 | 2022-08-30 | 上海德瀛睿创半导体科技有限公司 | Solder strip, photovoltaic module, and preparation method and equipment of photovoltaic module |
| CN217485462U (en) * | 2022-04-28 | 2022-09-23 | 泰州中来光电科技有限公司 | Novel photovoltaic module |
-
2022
- 2022-10-08 CN CN202211220890.8A patent/CN115295655A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882497A (en) * | 2015-06-05 | 2015-09-02 | 中利腾晖光伏科技有限公司 | Grid-shaped electrode solar cell |
| CN208093576U (en) * | 2018-05-14 | 2018-11-13 | 泰州隆基乐叶光伏科技有限公司 | A kind of compound substrate welding |
| CN110993733A (en) * | 2019-12-04 | 2020-04-10 | 通威太阳能（合肥）有限公司 | Photovoltaic module manufacturing method |
| CN110828600A (en) * | 2019-12-12 | 2020-02-21 | 浙江晶科能源有限公司 | IBC battery pack and manufacturing method thereof |
| CN111162136A (en) * | 2020-01-17 | 2020-05-15 | 浙江晶科能源有限公司 | IBC battery pack and manufacturing method thereof |
| CN114068733A (en) * | 2020-08-10 | 2022-02-18 | 苏州阿特斯阳光电力科技有限公司 | Battery piece and photovoltaic module with same |
| CN113066885A (en) * | 2021-03-18 | 2021-07-02 | 苏州沃特维自动化系统有限公司 | Series photovoltaic cell assembly and packaging method thereof |
| CN215418193U (en) * | 2021-04-13 | 2022-01-04 | 苏州阿特斯阳光电力科技有限公司 | Battery piece and photovoltaic module with same |
| CN214956902U (en) * | 2021-06-30 | 2021-11-30 | 青海黄河上游水电开发有限责任公司西宁太阳能电力分公司 | IBC back contact assembly of high-efficient high reliability of full black |
| CN215815896U (en) * | 2021-07-27 | 2022-02-11 | 陕西众森电能科技有限公司 | Solar cell module |
| CN113851549A (en) * | 2021-07-28 | 2021-12-28 | 天合光能股份有限公司 | Solar cell string and preparation method and application thereof |
| CN113851550A (en) * | 2021-07-28 | 2021-12-28 | 天合光能股份有限公司 | Solar cell string and preparation method and application thereof |
| CN114068734A (en) * | 2021-11-11 | 2022-02-18 | 任佳新 | Manufacturing method of photovoltaic cell assembly |
| CN114068735A (en) * | 2021-11-11 | 2022-02-18 | 任佳新 | Manufacturing method of heterojunction photovoltaic cell assembly |
| CN114864721A (en) * | 2022-04-27 | 2022-08-05 | 浙江爱康光电科技有限公司 | Main-grid-free photovoltaic module, preparation method thereof and welding strip welding method |
| CN217280809U (en) * | 2022-04-27 | 2022-08-23 | 浙江爱康光电科技有限公司 | No main grid photovoltaic module with film |
| CN217485462U (en) * | 2022-04-28 | 2022-09-23 | 泰州中来光电科技有限公司 | Novel photovoltaic module |
| CN114975663A (en) * | 2022-04-29 | 2022-08-30 | 上海德瀛睿创半导体科技有限公司 | Solder strip, photovoltaic module, and preparation method and equipment of photovoltaic module |
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