CN107492585B - A kind of stacked wafer moudle battery strings repair method - Google Patents
A kind of stacked wafer moudle battery strings repair method Download PDFInfo
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- CN107492585B CN107492585B CN201710852269.6A CN201710852269A CN107492585B CN 107492585 B CN107492585 B CN 107492585B CN 201710852269 A CN201710852269 A CN 201710852269A CN 107492585 B CN107492585 B CN 107492585B
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- existing defects
- battery
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000007547 defect Effects 0.000 claims abstract description 99
- 239000012634 fragment Substances 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 238000007711 solidification Methods 0.000 claims abstract description 21
- 230000008023 solidification Effects 0.000 claims abstract description 21
- 230000003139 buffering effect Effects 0.000 claims abstract description 13
- 238000002503 electroluminescence detection Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 40
- 238000005520 cutting process Methods 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- 239000004593 Epoxy Substances 0.000 claims description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 8
- 238000013467 fragmentation Methods 0.000 abstract description 6
- 238000006062 fragmentation reaction Methods 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 16
- 239000000853 adhesive Substances 0.000 description 15
- 230000001070 adhesive effect Effects 0.000 description 15
- 239000010408 film Substances 0.000 description 7
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002224 dissection Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- -1 organosilicon Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 239000010926 waste battery Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- H01L31/1876—Particular processes or apparatus for batch treatment of the devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/12—Measuring as part of the manufacturing process for structural parameters, e.g. thickness, line width, refractive index, temperature, warp, bond strength, defects, optical inspection, electrical measurement of structural dimensions, metallurgic measurement of diffusions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Primary Cells (AREA)
Abstract
The invention discloses a kind of stacked wafer moudle battery strings repair methods, including are detected by EL detection method to battery strings, get the information of the cell piece of existing defects；Then battery strings are placed in buffering pad film and are cut, separate the cell piece of existing defects from battery strings；Then new fragment cell piece is taken, and is adhered on the corresponding position of battery strings using corresponding conducting resinl, is then heating and curing again, to complete the reclamation work of disc stack battery strings.The present invention is directed to the preparation section of existing cell piece component, the cell piece of existing defects in stacked wafer moudle battery strings is separated, then it reuses corresponding conducting resinl and is bonded solidification again, this method can be avoided the problem of the defects of other cell pieces cause fragmentation or crack, the battery strings of existing defects can be re-used simultaneously, avoid the waste of the resources such as battery.
Description
Technical field
The invention belongs to a kind of solar cell module technical fields；It is related to a kind of stacked wafer moudle battery strings repair method.
Background technique
Solar photovoltaic assembly is that encapsulation is electrically interconnected in multiple solar batteries, then passes through light volta effect for luminous energy
It is converted to the device of electric energy.Solar photovoltaic assembly is divided into crystal silicon and thin film solar photovoltaic module.Stacked wafer moudle is by leading
Several small pieces batteries are connected into battery strings by the materials such as electric glue, tin cream, which is that conventional full wafer is passed through certain side
Several percentage of batteries that formula is cut into, then by applying tin copper strips for solar photovoltaic assembly made of the interconnection of several battery strings.
Conducting resinl (Electrically Conductive Adhesive) is a kind of solidification or has certain electric conductivity after dry
Adhesive, it usually using matrix resin and conductive filler, that is, conducting particles as main constituents, passes through the bonding of matrix resin
Effect is combined together conducting particles, forms conductive path, realizes the conductive connection of glued material.Common matrix resin
Including organosilicon, acrylic acid and epoxy resin etc., different resin matrixes solidify or be dry after with different physical state and
Performance.
There are defective cell pieces for the mainly replacement of reprocessing of stacked wafer moudle, be first will be present the cell piece of defect from
It is separated in battery strings, then new cell piece is bonded in the position of former split cell piece, form Ohmic contact.And lamination
Component is currently under the development phase, and there are problems, causes the waste of the resources such as many cell pieces, conducting resinl, especially
Not reworkable waste battery piece existing in the form of battery strings, therefore just need to replace the cell piece of existing defects.
The method of the cell piece of existing replacement existing defects has following several at present: the cell piece of 1. pairs of existing defects,
The painting tin copper strips interconnected with it is heated using electric iron, cancel cell piece and applies the connection of tin copper strips, then the cell piece
It takes out, the cell piece more renewed, and reuse electric iron to apply tin copper strips and cell piece main grid wire bonding；This method can be used for
The battery strings for applying the conventional batteries piece of tin copper strips interconnection are reprocessed, for using conductive adhesive to interconnect the battery strings to be formed, no
It is able to achieve the separation of cell piece, therefore cannot be used for the battery strings of conductive adhesive interconnection.2. directly by target defect cell piece
Both ends along conductive tree lace vertically separate, then by new cell piece by conductive adhesive solidification；This method is mainly to grasp by hand
Make, the battery strings under certain process conditions can be separated by hand, and crack, fragmentation etc. will not be caused to other cell pieces
It influences, but for most of battery strings, the solidification bonding force of conducting resinl is stronger, can separately cause by hand to other cell pieces
Crack, fragmentation cause bigger workload.3. using the thinner steel wire of diameter, gap is overlapped along two panels fragment battery conductive glue
Cutting, then new cell piece conductive adhesive is solidified；The disadvantages of the method are as follows finer wire segmentation effect needs both ends to be straightened
Rigidity is kept, but in cutting process, steel wire is straightened that plane is not parallel with cell plane, and leading to steel wire not only has along gap
Dissection, there are also the effect perpendicular to battery face, the defects of will cause fragmentation and crack in this way.
Summary of the invention
The present invention provides a kind of stacked wafer moudle battery strings repair methods.For the preparation section of existing cell piece component,
The cell piece of existing defects in stacked wafer moudle battery strings is separated, corresponding conducting resinl is then reused and is bonded again admittedly
The problem of change, this method can be avoided the defects of other cell pieces cause fragmentation or crack, while can be to the electricity of existing defects
Pond string re-uses, and avoids the waste of the resources such as cell piece.
The technical scheme is that a kind of stacked wafer moudle battery strings repair method, comprising the following steps:
Step 1, battery strings are detected by EL detection method, and obtains the position of the cell piece of existing defects；
Step 2, battery strings are placed in horizontally disposed buffering pad film and carry out cutting action, buffering pad film be EVA or
POE material, so that steel knife is separated existing defects cell piece along the positive and negative overlapping slit cuts of existing defects cell piece, specifically
Steel knife be close to existing defects cell piece surface, and steel knife at the uniform velocity promotes cutting, and the cell piece bending cutting of defect will be present
Cut separation；
Step 3, new fragment cell piece is taken, smears conducting resinl in its positive and negative main gate line, then by new fragment battery
Piece is placed on battery strings and isolates on the position of defect fragment cell piece, and then battery strings are placed on heating platform and are consolidated
Change bonding；Its solidification temperature is 100-200 DEG C, curing time 5-120s；
Step 4, it completes to obtain stacked wafer moudle battery to the reclamation work of stacked wafer moudle battery strings.
Further, the features of the present invention also characterized in that:
Wherein the battery strings in step 1 are to pass through organic silicon type conduction glue connection.
Organic silicon type conducting resinl is wherein smeared in the positive and negative main gate line of fragment cell piece new in step 3.
Wherein the battery strings in step 1 are to pass through epoxy type or acrylic type conduction glue connection.
Epoxy type or acrylic type conducting resinl are wherein smeared in the positive and negative main gate line of fragment cell piece new in step 3.
Wherein first battery strings are placed on horizontally disposed heating platform in step 2, and the battery of defect will be present
Piece is heated to 280-500 DEG C, heating time 5-120s, is then again placed on the battery strings after heating classification horizontally disposed
Cutting action is carried out in buffering pad film.
It wherein further include that the cell piece of existing defects is marked in step 1.
Compared with prior art, the beneficial effects of the present invention are: the present invention is first got by EL detection method in the presence of scarce
The cell piece needs of the position of sunken cell piece, the i.e. existing defects are cut into from battery strings, and use new battery
Piece is replaced；After the cell piece for determining the existing defects needed replacing, carried out using cell piece of the steel knife to existing defects
It cuts, is kept completely separate the cell piece of existing defects in cutting process, the cell piece that other can be protected intact is injury-free, keeps away
The active force for having exempted from vertical cell piece direction prevents from causing to damage to other intact cell pieces, completes the electricity that defect will be present
Then the process that pond piece is separated with battery strings takes new cell piece, and new cell piece is passed through conductive adhesive to battery
It goes here and there on corresponding position；By the present invention in that being cut with cell piece of the steel knife to existing defects, avoids artificial separation and deposit
The defect problem of fragmentation and crack caused by cell piece and the steel wire separation of defect has reached to battery strings re-using
Purpose avoids the waste of the resources such as battery strings.
Further, different separation method and bonding way are carried out using different conducting resinls for battery strings, from
And achieve the purpose that repair different types of battery strings；Specifically to the battery strings of organic silicon type conductive adhesive and
Epoxy type, acrylic type conductive adhesive battery strings carry out different cutting methods respectively；Wherein epoxy type or acrylic type
Conducting resinl needs to carry out heating separation process to the cell piece of existing defects before being cut, with facilitate it is subsequent cutting smoothly into
Row.
Further, the cell piece of existing defects is marked, the convenient battery that existing defects are identified in cutting
Piece.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the battery strings of existing defects in the present invention；
Fig. 2 is process schematic crosscutting in the present invention；
Fig. 3 is the schematic cross-section of process crosscutting in the present invention；
Fig. 4 is the structural schematic diagram of steel knife in the present invention；
Fig. 5 is the heating process schematic diagram of defective batteries piece in the present invention.
In figure: 1 is battery strings；2 be defective batteries piece；3 be cushion；4 be steel knife；5 be heating platform；6 be heating plate.
Specific embodiment
Technical solution of the present invention is further illustrated in the following with reference to the drawings and specific embodiments.
The present invention provides a kind of stacked wafer moudle battery strings repair methods, comprising the following steps:
Step 1, battery strings are detected using EL detection method, EL detection method is a kind of detection solar battery group
The internal flaw of part, crack, fragment, rosin joint, disconnected grid and different switching efficiency monolithic battery abnormal phenomenon method；Such as Fig. 1
It is shown, the cell piece of defect is detected the presence of by EL detection method, and be marked；
Step 2, when the conducting resinl that battery strings use is organic silicon type conducting resinl, as shown in Fig. 2, battery strings are placed on
Cutting action is carried out in horizontally disposed buffering pad film, buffering pad film is EVA or POE material, and EVA is a kind of rubber-plastic foamed material
Material, is a kind of elastic material of softness, POE is a kind of thermoplastic elastic material；Then using steel knife along existing defects
The positive and negative overlapping slit cuts separation of cell piece, as shown in figure 3, steel knife is close to the surface of the cell piece of existing defects, and steel knife is even
Speed promotes cutting, and the cell piece bending cutting separation of defect will be present, and the cell piece that defect will be present is cut from battery strings；
When the conducting resinl that battery strings use is epoxy type or acrylic type conducting resinl, as shown in figure 5, battery strings are first placed on level
On the heating platform of setting, and the cell piece that defect will be present is heated to 280-500 DEG C, heating time 5-120s, then
The battery strings after heating classification are placed in horizontally disposed buffering pad film again and carry out cutting action, as shown in Fig. 2, by battery
String is placed in buffering pad film made of EVA or POE, then using steel knife along the positive and negative overlapping gap of cell piece of existing defects
Cutting separation, as shown in figure 3, steel knife is close to the surface of the cell piece of existing defects, and steel knife at the uniform velocity promotes cutting, and will be present
The cell piece bending cutting separation of defect, the cell piece that defect will be present are cut from battery strings.Wherein steel knife as shown in figure 4,
It is the thin blade of steel, and one end is provided with handle.
Step 3, new fragment cell piece is taken, the conducting resinl that the battery strings use is smeared in its positive and negative main gate line, then
New fragment cell piece is placed on battery strings to isolate on the position of defect fragment cell piece, then battery strings are placed on and are added
Solidification bonding is carried out on hot platform；Its solidification temperature is 100-200 DEG C, curing time 5-120s.
Step 4, it completes to obtain stacked wafer moudle battery strings to the reclamation work of stacked wafer moudle battery strings.
The embodiment of the present invention is:
Embodiment 1
For battery strings made of certain organic silicon type conductive adhesive, there is at one cell piece damage thereon, need to its into
Row reprocesses replacement work, and detailed process is as follows:
Firstly, detecting by EL detection method to battery strings, and the position of the cell piece of existing defects is got,
The cell piece of existing defects is marked simultaneously；Then battery strings are placed on horizontally disposed buffering made of EVA material
On pad, separated using steel knife along the positive and negative overlapping slit cuts of cell piece of existing defects, steel knife is close to the battery of existing defects
The surface of piece, and steel knife at the uniform velocity promotes cutting, and the cell piece bending cutting separation of defect will be present, and the battery of defect will be present
Piece is cut from battery strings；Then new fragment cell piece is taken again, and organic silicon type conduction is smeared in its positive and negative main gate line
Glue, and new fragment cell piece is placed on the position for isolating defect fragment cell piece in battery strings, then by battery
String is placed on heating platform and carries out solidification bonding, and the solidification temperature that new fragment cell piece goes out is 100 DEG C, and curing time is
120s；Complete the reclamation work to the stacked wafer moudle battery strings.
Embodiment 2
For battery strings made of certain epoxy type conductive adhesive, there is cell piece at one to damage thereon, need to carry out it
Replacement work is reprocessed, detailed process is as follows:
Firstly, detecting by EL detection method to battery strings, and the position of the cell piece of existing defects is got,
The cell piece of existing defects is marked simultaneously；Then battery strings are placed on horizontally disposed heating platform, and will
The cell piece of existing defects is heated to 280 DEG C, then battery strings are placed on water made of POE material by heating time 120s
On the cushion of flat setting, separated using steel knife along the positive and negative overlapping slit cuts of cell piece of existing defects, steel knife abutting is deposited
On the surface of the cell piece of defect, and steel knife at the uniform velocity promotes cutting, and the cell piece bending cutting separation of defect will be present, and will deposit
It is cut from battery strings in the cell piece of defect；Then new fragment cell piece is taken again, and is smeared in its positive and negative main gate line
Epoxy type conducting resinl, and new fragment cell piece is placed on the position for isolating defect fragment cell piece in battery strings,
Then battery strings being placed on heating platform and carries out solidification bonding, the solidification temperature that new fragment cell piece goes out is 200 DEG C, Gu
The change time is 5s；Complete the reclamation work to the stacked wafer moudle battery strings.
Embodiment 3
For battery strings made of certain acrylic type conductive adhesive, there is at one cell piece damage thereon, need to its into
Row reprocesses replacement work, and detailed process is as follows:
Firstly, detecting by EL detection method to battery strings, and the position of the cell piece of existing defects is got,
The cell piece of existing defects is marked simultaneously；Then battery strings are placed on horizontally disposed heating platform, and will
The cell piece of existing defects is heated to 500 DEG C, then battery strings are placed on level made of POE material by heating time 5s
On the cushion of setting, separated using steel knife along the positive and negative overlapping slit cuts of cell piece of existing defects, steel knife is close to exist
The surface of the cell piece of defect, and steel knife at the uniform velocity promotes cutting, and the cell piece bending cutting separation of defect will be present, and will be present
The cell piece of defect is cut from battery strings；Then new fragment cell piece is taken again, and smears third in its positive and negative main gate line
Olefin(e) acid type conducting resinl, and new fragment cell piece is placed on the position for isolating defect fragment cell piece in battery strings,
Then battery strings being placed on heating platform and carries out solidification bonding, the solidification temperature that new fragment cell piece goes out is 150 DEG C, Gu
The change time is 60s；Complete the reclamation work to the stacked wafer moudle battery strings.
Embodiment 4
For battery strings made of certain acrylic type conductive adhesive, there is at one cell piece damage thereon, need to its into
Row reprocesses replacement work, and detailed process is as follows:
Firstly, detecting by EL detection method to battery strings, and the position of the cell piece of existing defects is got,
The cell piece of existing defects is marked simultaneously；Then battery strings are placed on horizontally disposed heating platform, and will
The cell piece of existing defects is heated to 350 DEG C, then battery strings are placed on level made of POE material by heating time 75s
On the cushion of setting, separated using steel knife along the positive and negative overlapping slit cuts of cell piece of existing defects, steel knife is close to exist
The surface of the cell piece of defect, and steel knife at the uniform velocity promotes cutting, and the cell piece bending cutting separation of defect will be present, and will be present
The cell piece of defect is cut from battery strings；Then new fragment cell piece is taken again, and smears third in its positive and negative main gate line
Olefin(e) acid type conducting resinl, and new fragment cell piece is placed on the position for isolating defect fragment cell piece in battery strings,
Then battery strings being placed on heating platform and carries out solidification bonding, the solidification temperature that new fragment cell piece goes out is 180 DEG C, Gu
The change time is 30s；Complete the reclamation work to the stacked wafer moudle battery strings.
Embodiment 5
For battery strings made of certain epoxy type conductive adhesive, there is cell piece at one to damage thereon, need to carry out it
Replacement work is reprocessed, detailed process is as follows:
Firstly, detecting by EL detection method to battery strings, and the position of the cell piece of existing defects is got,
The cell piece of existing defects is marked simultaneously；Then battery strings are placed on horizontally disposed heating platform, and will
The cell piece of existing defects is heated to 400 DEG C, then battery strings are placed on level made of POE material by heating time 25s
On the cushion of setting, separated using steel knife along the positive and negative overlapping slit cuts of cell piece of existing defects, steel knife is close to exist
The surface of the cell piece of defect, and steel knife at the uniform velocity promotes cutting, and the cell piece bending cutting separation of defect will be present, and will be present
The cell piece of defect is cut from battery strings；Then new fragment cell piece is taken again, and smears ring in its positive and negative main gate line
Oxygen type conducting resinl, and new fragment cell piece is placed on the position for isolating defect fragment cell piece in battery strings, so
Battery strings are placed on heating platform afterwards and carry out solidification bonding, the solidification temperature that new fragment cell piece goes out is 120 DEG C, solidification
Time is 100s；Complete the reclamation work to the stacked wafer moudle battery strings.
Embodiment 6
For battery strings made of certain organic silicon type conductive adhesive, there is at one cell piece damage thereon, need to its into
Row reprocesses replacement work, and detailed process is as follows:
Firstly, detecting by EL detection method to battery strings, and the position of the cell piece of existing defects is got,
The cell piece of existing defects is marked simultaneously；Then battery strings are placed on horizontally disposed buffering made of EVA material
On pad, separated using steel knife along the positive and negative overlapping slit cuts of cell piece of existing defects, steel knife is close to the battery of existing defects
The surface of piece, and steel knife at the uniform velocity promotes cutting, and the cell piece bending cutting separation of defect will be present, and the battery of defect will be present
Piece is cut from battery strings；Then new fragment cell piece is taken again, and organic silicon type conduction is smeared in its positive and negative main gate line
Glue, and new fragment cell piece is placed on the position for isolating defect fragment cell piece in battery strings, then by battery
String is placed on heating platform and carries out solidification bonding, and the solidification temperature that new fragment cell piece goes out is 200 DEG C, and curing time is
10s；Complete the reclamation work to the stacked wafer moudle battery strings.
Claims (7)
1. a kind of stacked wafer moudle battery strings repair method, which comprises the following steps:
Step 1, battery strings are detected by EL detection method, and obtains the position of the cell piece of existing defects；
Step 2, battery strings are placed in horizontally disposed buffering pad film and carry out cutting action, buffering pad film is EVA or POE material
Matter, so that steel knife is separated existing defects cell piece, specific steel along the positive and negative overlapping slit cuts of existing defects cell piece
Knife is close to the surface of the cell piece of existing defects, and steel knife at the uniform velocity promotes cutting, and the cell piece bending cutting point of defect will be present
From；
Step 3, new fragment cell piece is taken, smears conducting resinl in its positive and negative main gate line, then puts new fragment cell piece
It sets on the position that battery strings isolate defect fragment cell piece, then battery strings is placed on heating platform solidify and are glued
It connects；Its solidification temperature is 100-200 DEG C, curing time 5-120s；
Step 4, it completes to obtain stacked wafer moudle battery strings to the reclamation work of stacked wafer moudle battery strings.
2. stacked wafer moudle battery strings repair method according to claim 1, which is characterized in that the battery in the step 1
String is to pass through organic silicon type conduction glue connection.
3. stacked wafer moudle battery strings repair method according to claim 2, which is characterized in that new point in the step 3
Organic silicon type conducting resinl is smeared in the positive and negative main gate line of piece cell piece.
4. stacked wafer moudle battery strings repair method according to claim 1, which is characterized in that the battery in the step 1
String is to pass through epoxy type or acrylic type conduction glue connection.
5. stacked wafer moudle battery strings repair method according to claim 4, which is characterized in that new point in the step 3
Epoxy type or acrylic type conducting resinl are smeared in the positive and negative main gate line of piece cell piece.
6. stacked wafer moudle battery strings repair method according to claim 4, which is characterized in that first will be electric in the step 2
The cell piece that pond string is placed on horizontally disposed heating platform, and defect will be present is heated to 280-500 DEG C, heating time
For 5-120s, then the battery strings after heating classification are placed in horizontally disposed buffering pad film again and carry out cutting action.
7. stacked wafer moudle battery strings repair method according to claim 1, which is characterized in that further include in the step 1
The cell piece of existing defects is marked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852269.6A CN107492585B (en) | 2017-09-19 | 2017-09-19 | A kind of stacked wafer moudle battery strings repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852269.6A CN107492585B (en) | 2017-09-19 | 2017-09-19 | A kind of stacked wafer moudle battery strings repair method |
Publications (2)
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| CN108335992A (en) * | 2018-04-11 | 2018-07-27 | 成都晔凡科技有限公司 | Imbrication battery is bonded tensile test print and preparation method thereof and test method |
| CN108550662B (en) * | 2018-06-15 | 2024-03-29 | 浙江晶科能源有限公司 | Repairing device applied to multi-main-grid photovoltaic module |
| CN115889205A (en) * | 2021-09-23 | 2023-04-04 | 环晟光伏(江苏)有限公司 | Method for identifying and selecting small laminated cell strips |
| CN114864742B (en) * | 2022-04-27 | 2023-03-24 | 深圳市上古光电有限公司 | Light photovoltaic module repairing method |
| CN115117199A (en) * | 2022-05-31 | 2022-09-27 | 环晟新能源(江苏)有限公司 | Automatic repairing method for laminated assembly battery string |
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