CN210443580U - Passivating device for sliced battery - Google Patents
Passivating device for sliced battery Download PDFInfo
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- CN210443580U CN210443580U CN201921565668.5U CN201921565668U CN210443580U CN 210443580 U CN210443580 U CN 210443580U CN 201921565668 U CN201921565668 U CN 201921565668U CN 210443580 U CN210443580 U CN 210443580U
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- battery
- sliced battery
- passivation
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 86
- 238000002161 passivation Methods 0.000 claims abstract description 70
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 238000005215 recombination Methods 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000006467 substitution reaction 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model discloses a passivating device of section battery, the passivating device of section battery includes: the sliced battery processing cavity comprises a cavity air inlet and a cavity air outlet, wherein at least one sliced battery is suitable for being arranged in the sliced battery processing cavity; the ozone generator comprises a gas outlet and a gas return port, the gas outlet is connected with the cavity gas inlet, the gas return port is connected with the cavity gas outlet, and when the ozone generator works, the ozone generator and the slice battery processing cavity form a circulation loop through the cavity gas inlet, the cavity gas outlet, the gas outlet and the gas return port so that a fracture surface of the slice battery arranged in the slice battery processing cavity forms a passivation protective film. According to the utility model discloses a passivating device of section battery, the fracture surface can form passivation protecting film, can reduce the compound of fracture surface department photogenic carrier.
Description
Technical Field
The utility model belongs to the technical field of the photovoltaic technology and specifically relates to a passivating device of section battery is related to.
Background
At present, a crystalline silicon battery slice is mostly cut at a preset position of the whole battery slice by adopting a laser scribing, laser or mechanical splitting technology so as to form an independent cutting battery.
In the related art, after the cell is sliced, the cut part of the cell is directly exposed to the external environment, so that the cut surface of the cell has severe surface recombination, thereby reducing the power of the cell and affecting the stability of the cell and a photovoltaic module.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a passivating device of section battery, passivating device of section battery makes the fracture surface of section battery can form fine and close passivation protection film, can improve photovoltaic module's power and can improve photovoltaic module's reliability.
According to the utility model discloses passivating device of section battery, include: the sliced battery processing cavity comprises a cavity air inlet and a cavity air outlet, wherein at least one sliced battery is suitable for being arranged in the sliced battery processing cavity; the ozone generator comprises a gas outlet and a gas return port, the gas outlet is connected with the cavity gas inlet, the gas return port is connected with the cavity gas outlet, and when the ozone generator works, the ozone generator and the slice battery processing cavity form a circulation loop through the cavity gas inlet, the cavity gas outlet, the gas outlet and the gas return port so that a fracture surface of the slice battery arranged in the slice battery processing cavity forms a passivation protective film.
According to the utility model discloses passivating device of section battery, through arranging at least one section battery in section battery treatment cavity and make ozone generator and section battery treatment cavity pass through the cavity air inlet, the cavity gas outlet, gas outlet and return air inlet constitute circulation circuit, make the fracture surface of section battery can form fine and close passivation protecting film, passivation protecting film can carry out passivation protection to the fracture surface of section battery, the compound of fracture surface department photocarrier has greatly been reduced, thereby can improve photovoltaic module's power and can improve photovoltaic module's reliability. Moreover, the ozone utilization rate is high, and the environment is friendly. In addition, the passivation device of the whole slice battery is simple in structure and low in cost.
According to some embodiments of the utility model, the both ends of section battery processing cavity are equipped with section battery import and section battery export respectively, wherein the section battery is suitable for the follow the section battery import to the export of section battery removes, just the section battery is suitable for being followed the section battery import to form in the removal process of section battery export the passivation protective film.
According to some embodiments of the invention, the cavity air inlet is adapted to be aligned with the fracture surface.
According to the utility model discloses a some embodiments, ozone generator gas outlet department is connected with the intake pipe, the cavity air inlet forms the intake pipe stretches into one end in the section battery treatment cavity, the cavity gas outlet forms the bottom of section battery treatment cavity.
According to some embodiments of the utility model, the cavity air inlet includes a plurality of sub-air inlets, and is a plurality of sub-air inlet is suitable for along follow the section battery import to the direction interval of section battery export is arranged.
According to some embodiments of the invention, the sliced battery is adapted to be fixed in the sliced battery treatment cavity.
According to some embodiments of the utility model, the section battery handles the cavity and is airtight structure.
According to some embodiments of the invention, the cavity air inlet and the cavity gas outlet are formed respectively on two sides of the sliced battery processing cavity that are opposite to each other, the fracture surface of the sliced battery is adapted to face the cavity air inlet.
According to some embodiments of the present invention, the passivation apparatus for sliced batteries further comprises: the ozone concentration detection device is arranged at least one of the cavity air inlet and the cavity air outlet.
According to some embodiments of the utility model, the section battery handles the cavity and is resistant ozone oxidation cavity.
According to some embodiments of the invention, the sliced battery treatment cavity is a stainless steel cavity or a teflon cavity.
According to some embodiments of the utility model, the ozone concentration in the section battery treatment cavity is C, wherein C satisfies: c is more than or equal to 10ppm and less than or equal to 500 ppm.
According to some embodiments of the invention, the gas ejected from the cavity gas inlet is maintained for 3-30 s.
According to some embodiments of the utility model, the slice battery in the slice battery treatment cavity is suitable for the quantity of placing to be the Q piece, wherein Q satisfies: q is more than or equal to 1 and less than or equal to 500.
According to some embodiments of the invention, the thickness of the passivation protection film is 2-3 nm.
According to some embodiments of the present invention, the passivation apparatus for sliced batteries further comprises: and the tail gas treatment device is connected with the cavity gas outlet.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a passivation apparatus for sliced batteries according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a sliced battery passivation apparatus according to another embodiment of the present invention, wherein the sliced battery processing chamber is not shown;
FIG. 3 is a schematic view of a sliced cell processing chamber of the passivation apparatus for sliced cells shown in FIG. 2;
fig. 4 is a schematic view of a passivation apparatus for sliced batteries according to still another embodiment of the present invention.
Reference numerals:
100: a passivation device for the sliced battery;
1: a sliced battery processing cavity; 11: a cavity air inlet; 111: a sub-inlet;
12: a cavity air outlet; 13: slicing the battery; 131: a fracture surface;
14: a sliced battery inlet; 15: a sliced battery outlet; 16: a conveyor belt;
2: an ozone generator; 21: an air outlet; 22: an air return port;
3: an ozone concentration detection device; 4: a tail gas treatment device;
5: a carrying box; 6: a fairing.
Detailed Description
Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.
A passivation apparatus 100 of the sliced battery 13 according to an embodiment of the present invention is described below with reference to fig. 1 to 4.
As shown in fig. 1, 2 and 4, the passivation apparatus 100 of the sliced battery 13 includes a sliced battery treatment chamber 1 and an ozone generator 2.
Specifically, the sliced battery processing chamber 1 comprises a chamber air inlet 11 and a chamber air outlet 12, wherein at least one sliced battery 13 is adapted to be placed in the sliced battery processing chamber 1. The ozone generator 2 comprises an air outlet 21 and an air return opening 22, wherein the air outlet 21 is connected with the cavity air inlet 11, and the air return opening 22 is connected with the cavity air outlet 12. When the ozone generator 2 works, the ozone generator 2 and the sliced battery processing cavity 1 form a circulation loop through the cavity air inlet 11, the cavity air outlet 12, the air outlet 21 and the air return opening 22 so that the fracture surface 131 of the sliced battery 13 arranged in the sliced battery processing cavity 1 forms a passivation protective film.
For example, in the example of fig. 1, five sliced cells 13 stacked in the thickness direction are arranged in the sliced cell processing chamber 1, when the ozone generator 2 is operated, the ozone generated by the ozone generator 2 flows out from the air outlet 21 of the ozone generator 2, then flows into the sliced cell processing chamber 1 from the chamber air inlet 11 of the sliced cell processing chamber 1, and is put into the sliced cell processing chamber 1 immediately after the sliced cell 13 is cut, because the temperature is high due to the residual heat of cutting of the fractured surface 131 of the sliced cell 13, and the ozone is easily oxidized by heat, therefore, part of the ozone can be oxidized and decomposed in the sliced cell processing chamber 1 to form a layer of dense passivation protective film such as silicon dioxide protective film on the fractured surface 131 of the sliced cell 13, the ozone which is not oxidized and decomposed can flow out from the chamber air outlet 12 of the sliced cell processing chamber 1, and finally flows back to the ozone generator 2 from the air return port 22 of the ozone generator, the ozone is recycled, the utilization rate of the ozone is improved, and the ozone generating device is environment-friendly. Therefore, through the arrangement, the fracture surface 131 of the sliced cell 13 can be passivated and protected, the loss of the fracture surface 131 is reduced, the loss caused by half-cutting of the sliced cell 13 can be reduced to be within 0.05%, the loss caused by multi-slice cutting is reduced to be within 0.1%, the recombination of photon-generated carriers at the fracture surface 131 is greatly reduced, the power of a photovoltaic module can be improved, and the reliability of the photovoltaic module can be improved.
Five sliced batteries 13 are shown in fig. 1 for illustrative purposes, but it is obvious to those skilled in the art after reading the technical solution of the present application that the solution can be applied to other numbers of sliced batteries 13, which also falls within the protection scope of the present invention.
According to the utility model discloses passivation device 100 of section battery 13, through arranging at least one section battery 13 in section battery treatment cavity 1 and make ozone generator 2 and section battery treatment cavity 1 pass through cavity air inlet 11, cavity gas outlet 12, gas outlet 21 and return air inlet 22 constitute circulation circuit, the fracture surface 131 that makes section battery 13 can form passivation protection film, passivation protection film can carry out passivation protection to the fracture surface 131 of section battery 13, the compound of fracture surface 131 department photogenerated carrier has greatly been reduced, thereby can improve photovoltaic module's power and can improve photovoltaic module's reliability. Moreover, the ozone utilization rate is high, and the environment is friendly. In addition, the passivation device 100 of the whole sliced battery 13 has simple structure and low cost.
In some embodiments of the present invention, referring to fig. 3, both ends of the sliced battery processing chamber 1 are respectively provided with a sliced battery inlet 14 and a sliced battery outlet 15, wherein the sliced battery 13 is adapted to move from the sliced battery inlet 14 to the sliced battery outlet 15, and the sliced battery 13 is adapted to form a passivation film in the moving process from the sliced battery inlet 14 to the sliced battery outlet 15. For example, in the example of fig. 3, the sliced battery 13 can be transported by the conveyor belt 16, when the conveyor belt 16 transports the sliced battery 13 from the sliced battery inlet 14 into the sliced battery processing chamber 1, ozone generated by the ozone generator 2 enters the sliced battery processing chamber 1 from the chamber inlet 11 of the sliced battery processing chamber 1, so that the fracture surface 131 of the sliced battery 13 forms a passivation film, and then the conveyor belt 16 transports the sliced battery 13 formed with the passivation film out of the sliced battery outlet 15. In the process, the sliced battery 13 can move relative to the sliced battery processing cavity 1 all the time, and the conveyor belt 16 is in a working state all the time; of course, the driving belt 16 may stop after the sliced battery 13 is fed into the sliced battery processing chamber 1, so that the sliced battery 13 is kept still in the sliced battery processing chamber 1 for a certain period of time, and after the passivation film is formed on the fracture surface 131 of the sliced battery 13, the driving belt 16 is restarted to feed the sliced battery 13 with the passivation film formed out of the sliced battery outlet 15. Therefore, by using the sliced cell processing chamber 1 with the sliced cell inlet 14 and the sliced cell outlet 15, the passivation apparatus 100 can be integrated into the production line of the photovoltaic module, thereby realizing the flow process and further reducing the recombination of the photo-generated carriers at the fracture surface 131. Moreover, the sliced battery 13 forms the passivation film in the moving process from the sliced battery inlet 14 to the sliced battery outlet 15, so that the speed of forming the passivation film at the fracture surface 131 of the sliced battery 13 is increased, the passivation time of the sliced battery 13 is saved, and the production efficiency is improved.
Alternatively, referring to fig. 3, the area of both the sliced cell inlet 14 and sliced cell outlet 15 is smaller than the cross-sectional area of the sliced cell processing chamber 1. Therefore, when the sliced battery 13 can smoothly pass through the sliced battery processing cavity 1, the situation that ozone flows out of the sliced battery processing cavity 1 from the sliced battery inlet 14 or the sliced battery outlet 15 is avoided, and the ozone is prevented from polluting the outside air and harming the health of production personnel.
Further, referring to fig. 2, the cavity inlet 11 is adapted to be aligned with the fracture surface 131. For example, in the example of fig. 2, two sliced batteries 13 are shown, the fracture surfaces 131 of the two sliced batteries 13 are arranged opposite to each other, and the cavity gas inlets 11 of the sliced battery processing cavity 1 are aligned with the fracture surfaces 131 of the two sliced batteries 13. When the ozone generator 2 works, ozone flows from the air outlet 21 of the ozone generator 2 to the sliced cell processing cavity 1, and the cavity air inlet 11 is aligned with the fracture surface 131, so that the ozone is directly sprayed from the cavity air inlet 11 to the fracture surfaces 131 of the two sliced cells 13, and the fracture surfaces 131 of the two sliced cells 13 respectively form a dense passivation protective film such as a silicon dioxide protective film. With the arrangement, the ozone can be directly sprayed to the fracture surface 131 of the sliced battery 13 from the cavity gas inlet 11, so that the speed of forming the passivation protective film on the fracture surface 131 is increased.
In some embodiments of the present invention, as shown in fig. 2, the air outlet 21 of the ozone generator 2 is connected with an air inlet pipe, the cavity air inlet 12 is formed at one end (e.g., the left end in fig. 2) of the air inlet pipe extending into the slice battery processing cavity 1, and the cavity air outlet 12 is formed at the bottom of the slice battery processing cavity 1. When the ozone generator 2 works, ozone flows out from the air outlet 21 of the ozone generator 2, flows through the air inlet pipe and flows to the cavity air inlet 11 of the sliced battery processing cavity 1, part of the ozone is oxidized and decomposed in the sliced battery processing cavity 1, a layer of compact passivation protective film is formed on the fracture surface 131 of the sliced battery 13, and the rest of the ozone which is not oxidized and decomposed flows out from the cavity air outlet 12 at the bottom of the sliced battery processing cavity 1. Therefore, the cavity air inlet 11 is formed at one end of the air inlet pipe extending into the sliced battery processing cavity 1, the cavity air inlet 11 is positioned in the sliced battery processing cavity 1, the distance between the cavity air inlet 11 and the sliced battery 13 is shortened, ozone can be rapidly sprayed to the fracture surface 131 of the sliced battery 13 from the cavity air inlet 11 of the sliced battery processing cavity 1, a passivation film is formed on the surface of the fracture surface 131, ozone which is not subjected to oxidative decomposition can flow to the ozone generator 2 from the cavity air outlet 12 at the bottom of the sliced battery processing cavity 1 by means of self gravity, and recycling of the ozone is realized.
Alternatively, referring to fig. 2, the cavity air inlet 11 includes a plurality of sub-air inlets 111, and the plurality of sub-air inlets 111 are adapted to be arranged at intervals along a direction from the sliced cell inlet to the sliced cell outlet. In the description of the present invention, "a plurality" means two or more. For example, in the example of fig. 2, the cavity air inlet 11 includes three sub-air inlets 111, and the three sub-air inlets 111 are arranged at intervals along the length direction of the sliced cells 13. Therefore, by providing the plurality of sub-inlets 111, ozone can be simultaneously sprayed to the fracture surface 131 of the sliced cell 13 from the plurality of sub-inlets 111, so that the speed of forming the passivation film on the fracture surface 131 of the sliced cell 13 can be further increased, and the thickness of the passivation film can be more uniform.
In some embodiments of the present invention, as shown in fig. 1, the sliced battery 13 is adapted to be fixed in the sliced battery processing chamber 1. The position of the sliced battery 13 in the sliced battery processing cavity 1 is kept unchanged, ozone can be sufficiently oxidized and decomposed in the sliced battery processing cavity 1, a passivation protective film is better formed on the fracture surface 131 of the sliced battery 13, and the passivation effect of the ozone on the fracture surface 131 of the sliced battery 13 is improved.
Optionally, at least one carrying box 5 is arranged in the sliced battery processing cavity 1, and the sliced battery 13 is fixed on the carrying box 5.
According to other embodiments of the present invention, referring to fig. 1, the sliced battery processing chamber 1 may be a closed structure. Therefore, the sliced battery processing cavity 1 can not only realize the supporting function of the sliced battery 13, but also gather ozone in the sliced battery processing cavity 1, at the moment, the whole passivation device 100 can be closed and is more environment-friendly, and the ozone generated by the ozone generator 2 can be concentrated in the sliced battery processing cavity 1, so that the passivation effect of the fracture surface 131 of the sliced battery 13 is further ensured.
Alternatively, as shown in fig. 1, the cavity inlet 11 and the cavity outlet 12 are formed on two sides of the sliced battery processing cavity 1 opposite to each other, respectively, and the fracture surface 131 of the sliced battery 13 is adapted to face the cavity inlet 11. For example, in the example of fig. 1, the cavity inlet 11 is formed on the right side of the sliced battery processing cavity 1, the cavity outlet 12 is formed on the left side of the sliced battery processing cavity 1, and the fracture surface 131 of the sliced battery 13 faces right to be opposed to the cavity inlet 11. Thereby, the ozone can be directly sprayed from the cavity gas inlet 11 to the fracture surface 131 of the sliced battery 13, so that the speed of forming the passivation film at the fracture surface 131 of the sliced battery 13 can be further increased.
In a further embodiment of the present invention, referring to fig. 1 and 2, the passivation device 100 of the sliced battery 13 further comprises an ozone concentration detection device 3, and the ozone concentration detection device 3 is disposed at least one of the cavity air inlet 11 and the cavity air outlet 12. That is, the ozone concentration detecting device 3 may be disposed only at the cavity inlet 11 (as shown in fig. 2), only at the cavity outlet 12 (as shown in fig. 1), or both at the cavity inlet 11 and the cavity outlet 12 (not shown). Therefore, the ozone concentration detection device 3 is arranged at the cavity air inlet 11, so that whether the concentration of ozone reaches a preset value before entering the sliced battery processing cavity 1 can be judged, and a passivation protective film can be fully formed on the fracture surface 131 of the sliced battery 13 arranged in the sliced battery processing cavity 1; by arranging the ozone concentration detection device 3 at the cavity air outlet 12, whether the ozone is sufficiently oxidized and decomposed at the fracture surface 131 of the sliced battery 13 can be judged so as to adjust the ozone generation amount of the ozone generator 2 according to actual requirements.
Furthermore, an ozone concentration prompt and a concentration over-standard alarm can be arranged, so that the mass production and the use of the passivation device 100 of the sliced battery 13 are facilitated.
Alternatively, the sliced battery treatment chamber 1 may be an ozone oxidation resistant chamber. Therefore, the oxidation corrosion of the sliced cell processing cavity 1 by ozone can be prevented, and the service life of the sliced cell processing cavity 1 can be prolonged. For example, the sliced battery processing chamber 1 may be a stainless steel chamber or a teflon chamber.
Optionally, the ozone concentration in the sliced battery processing cavity 1 is C, wherein C satisfies: 10ppm (parts permillion, expressed as parts per million of solute by mass of the total solution mass, also known as parts per million concentration) for gases ppm is typically expressed as mole or volume C.ltoreq.500 ppm. Therefore, by enabling C to be more than or equal to 10ppm and less than or equal to 500ppm, the ozone in the sliced battery processing cavity 1 can be fully oxidized and decomposed, a compact passivation protective film is formed on the fracture surface 131 of the sliced battery 13, and the problem of waste caused by overhigh concentration of the ozone in the sliced battery processing cavity 1 can be avoided.
Optionally, the gas emitted from the chamber gas inlet 11 is maintained for a period of 3s-30s (inclusive). Therefore, while the compact passivation film can be formed on the fracture surface 131 of the sliced battery 13, the waste of ozone can be avoided, and the production efficiency is improved.
Optionally, the number of sliced batteries 13 in the sliced battery processing chamber 1 suitable for placement is Q slices, where Q satisfies: q is more than or equal to 1 and less than or equal to 500. At this time, the fracture surface 131 of one sliced battery 13 can be passivated at a time, or the fracture surfaces 131 of a plurality of sliced batteries 13 can be passivated at the same time, and a user can select the number of the sliced batteries 13 placed in the sliced battery processing cavity 1 according to actual conditions, so that the passivation efficiency of the fracture surfaces 131 of the sliced batteries 13 is improved.
Optionally, the passivation protection film has a thickness of 2nm to 3nm (inclusive). Therefore, the passivation film can well protect the fracture surface 131 of the sliced cell 13, so that the power and the stability of the sliced cell 13 and the photovoltaic module can be improved.
In a further embodiment of the present invention, referring to fig. 2, the passivation device 100 of the sliced battery 13 further comprises a tail gas treatment device 4, and the tail gas treatment device 4 is connected to the cavity gas outlet 12. From this, through setting up tail gas processing apparatus 4, tail gas processing apparatus 4 can turn into oxygen with ozone to can reduce the pollution to the air. It can be understood that the ozone discharged from the cavity outlet 12 can enter the exhaust gas treatment device 4 or the ozone generator 2 for recycling according to actual requirements.
Optionally, a fairing 6 is arranged in the sliced battery processing cavity 1, and the fairing 6 is located at the cavity air inlet 11. For example, in the example of fig. 4, a plurality of through holes are provided on the cowling, and ozone flowing into the sliced battery treatment chamber 1 from the chamber inlet 11 first passes through the cowling 6 and then flows from the plurality of through holes on the cowling 6 to the sliced battery 13. Therefore, by arranging the fairing 6, the ozone entering the sliced battery processing cavity 1 can be more uniform through the plurality of through holes on the fairing 6, so that the passivation protective film formed on the fracture surface 131 of the sliced battery 13 is more uniform. Further alternatively, the material of the fairing 6 may be quartz, stainless steel, or polytetrafluoroethylene, etc. But is not limited thereto.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (16)
1. A sliced battery passivation apparatus comprising:
the sliced battery processing cavity comprises a cavity air inlet and a cavity air outlet, wherein at least one sliced battery is suitable for being arranged in the sliced battery processing cavity;
the ozone generator comprises an air outlet and an air return opening, the air outlet is connected with the cavity air inlet, the air return opening is connected with the cavity air outlet,
when the ozone generator works, the ozone generator and the sliced battery processing cavity form a circulation loop through the cavity air inlet, the cavity air outlet, the air outlet and the air return port so that a passivation protective film is formed on the fracture surface of the sliced battery arranged in the sliced battery processing cavity.
2. The sliced battery passivating device as claimed in claim 1, wherein the sliced battery processing chamber has a sliced battery inlet and a sliced battery outlet at two ends thereof, respectively, wherein the sliced battery is adapted to move from the sliced battery inlet to the sliced battery outlet, and the sliced battery is adapted to form the passivating protective film during the movement from the sliced battery inlet to the sliced battery outlet.
3. The sliced battery passivation device according to claim 2, characterized in that the cavity gas inlet is adapted to be aligned with the fracture surface.
4. The sliced battery passivation device as claimed in claim 2, wherein an air inlet pipe is connected to the air outlet of the ozone generator, the cavity air inlet is formed at one end of the air inlet pipe extending into the sliced battery processing cavity, and the cavity air outlet is formed at the bottom of the sliced battery processing cavity.
5. The sliced cell passivation apparatus according to claim 2, wherein the cavity gas inlet comprises a plurality of sub-gas inlets, and the plurality of sub-gas inlets are adapted to be spaced in a direction from the sliced cell inlet to the sliced cell outlet.
6. The sliced battery passivation device of claim 1, wherein the sliced battery is adapted to be secured within the sliced battery processing cavity.
7. The sliced battery passivation device according to claim 1, wherein the sliced battery processing cavity is a sealed structure.
8. The sliced battery passivation device according to claim 7, characterized in that the cavity gas inlet and the cavity gas outlet are respectively formed on two sides of the sliced battery processing cavity opposite to each other, and the fracture surface of the sliced battery is adapted to face the cavity gas inlet.
9. The device for passivating sliced battery as defined in any of claims 1-8, further comprising:
the ozone concentration detection device is arranged at least one of the cavity air inlet and the cavity air outlet.
10. The device for passivating sliced battery as defined in claim 1, wherein the sliced battery processing cavity is an ozone oxidation resistant cavity.
11. The sliced battery passivation device of claim 10, wherein the sliced battery processing chamber is a stainless steel chamber or a teflon chamber.
12. The sliced battery passivation device according to claim 1, wherein the concentration of ozone in the sliced battery treatment cavity is C, wherein C satisfies: c is more than or equal to 10ppm and less than or equal to 500 ppm.
13. The passivation device for sliced batteries according to claim 1, characterized in that the gas ejected from the gas inlet of the cavity is maintained for 3-30 s.
14. The sliced battery passivation device according to claim 1, wherein the sliced battery in the sliced battery processing cavity is suitable for placing Q slices, wherein Q satisfies: q is more than or equal to 1 and less than or equal to 500.
15. The passivation apparatus of the sliced battery as claimed in claim 1, wherein the thickness of the passivation protective film is 2nm to 3 nm.
16. The device for passivating sliced batteries according to claim 1, further comprising:
and the tail gas treatment device is connected with the cavity gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921565668.5U CN210443580U (en) | 2019-09-19 | 2019-09-19 | Passivating device for sliced battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921565668.5U CN210443580U (en) | 2019-09-19 | 2019-09-19 | Passivating device for sliced battery |
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| CN210443580U true CN210443580U (en) | 2020-05-01 |
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| CN201921565668.5U Active CN210443580U (en) | 2019-09-19 | 2019-09-19 | Passivating device for sliced battery |
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| CN (1) | CN210443580U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820798A (en) * | 2020-12-31 | 2021-05-18 | 深圳市拉普拉斯能源技术有限公司 | Passivation equipment |
| CN112864274A (en) * | 2020-12-31 | 2021-05-28 | 深圳市拉普拉斯能源技术有限公司 | Passivation equipment and passivation method |
| CN114959727A (en) * | 2022-01-23 | 2022-08-30 | 纬景储能科技有限公司 | Method and device for pre-oxidizing pipeline of flow battery |
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2019
- 2019-09-19 CN CN201921565668.5U patent/CN210443580U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112820798A (en) * | 2020-12-31 | 2021-05-18 | 深圳市拉普拉斯能源技术有限公司 | Passivation equipment |
| CN112864274A (en) * | 2020-12-31 | 2021-05-28 | 深圳市拉普拉斯能源技术有限公司 | Passivation equipment and passivation method |
| CN112820798B (en) * | 2020-12-31 | 2022-02-11 | 深圳市拉普拉斯能源技术有限公司 | Passivation equipment |
| CN114959727A (en) * | 2022-01-23 | 2022-08-30 | 纬景储能科技有限公司 | Method and device for pre-oxidizing pipeline of flow battery |
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Address after: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee after: CSI Cells Co.,Ltd. Patentee after: Atlas sunshine Power Group Co.,Ltd. Address before: No. 199, deer mountain road, Suzhou high tech Zone, Jiangsu Province Patentee before: CSI Cells Co.,Ltd. Patentee before: CSI SOLAR POWER GROUP Co.,Ltd. |
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