CN112736330A - Battery coating method and battery - Google Patents
Battery coating method and battery Download PDFInfo
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- CN112736330A CN112736330A CN202110013282.9A CN202110013282A CN112736330A CN 112736330 A CN112736330 A CN 112736330A CN 202110013282 A CN202110013282 A CN 202110013282A CN 112736330 A CN112736330 A CN 112736330A
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- 238000000576 coating method Methods 0.000 title claims abstract description 116
- 239000003292 glue Substances 0.000 claims abstract description 106
- 239000011248 coating agent Substances 0.000 claims abstract description 97
- 238000000034 method Methods 0.000 claims abstract description 34
- 230000004913 activation Effects 0.000 claims abstract description 21
- 238000003384 imaging method Methods 0.000 claims description 33
- 238000005538 encapsulation Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 229920002379 silicone rubber Polymers 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000004945 silicone rubber Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229920006335 epoxy glue Polymers 0.000 claims description 3
- 238000007765 extrusion coating Methods 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 11
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000002736 metal compounds Chemical class 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- 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 application discloses a battery coating method and a battery, and belongs to the field of batteries. The battery coating method comprises the steps of dividing a coating area from the outer surface of a battery, wherein the coating area is provided with an insulating film overlapping part and comprises a first coating area; performing a pressure treatment on the insulating film of the insulating film overlapping portion of the first envelope region; performing surface energy activation treatment on the insulating film corresponding to the first coating region; and coating glue on the insulating film of the first coating area, and curing the glue. The battery enveloping method can play a certain role in protecting the outer surface of the battery, can further improve the insulation performance of the battery, meets the requirement of the insulation performance of the battery, and improves the use safety of the battery.
Description
Technical Field
The application relates to the field of batteries, in particular to a battery coating method and a battery.
Background
At present, the insulation performance of the battery is often improved by wrapping the insulation film on the outer surface of the battery, and the insulation performance requirement of the battery cannot be met by the method, so that how to perform better coating treatment on the battery makes the insulation performance of the battery meet the requirement, improves the use safety of the battery, and is a problem to be solved urgently.
Disclosure of Invention
The present application is directed to solving at least one of the problems in the prior art. Therefore, the application provides a battery coating method, which can further improve the insulation performance of the battery, meet the requirement of the insulation performance of the battery and improve the use safety of the battery.
The application also provides a battery adopting the battery coating method.
According to the battery enveloping method of the embodiment of the first aspect of the application, the method comprises the following steps:
dividing an outer surface of the battery into envelope regions, wherein the envelope regions are formed with overlapping portions of insulating films and comprise first envelope regions;
performing a pressing process on the insulating film of the insulating film overlapping portion of the first envelope region;
performing surface energy activation treatment on the insulating film corresponding to the first coating region;
and coating glue on the insulating film of the first coating area, and curing the glue.
The battery coating method has at least the following beneficial effects: according to the battery coating method, the coating area is divided into the areas on the outer surface of the battery, the insulating film at the overlapping part of the insulating films in the first coating area of the battery is subjected to pressure treatment, the height difference of the overlapping part of the insulating films is reduced, further, the surface energy of the insulating film in the first coating area is subjected to surface energy activation treatment, the surface energy of the insulating film is increased, glue is coated on the insulating film in the first coating area, and the glue is subjected to curing treatment, so that the outer surface of the battery can be protected to a certain extent, the insulating property of the battery can be further improved, the requirement on the insulating property of the battery is met, and the use safety of the battery is improved.
According to some embodiments of the present application, the subjecting of the insulating film overlapping portion of the first envelope region to pressing treatment includes:
providing a heat conductive material on the insulating film at the overlapping portion of the insulating films;
and heating and pressurizing the insulating film at the overlapping part of the insulating films.
According to some embodiments of the present application, the thermally conductive material comprises at least one of silicone, rubber, and silicone rubber.
According to some embodiments of the present application, the subjecting the insulating film corresponding to the first envelope region to a surface energy activation treatment includes:
and carrying out surface energy activation treatment on the insulating film by adopting a plasma cleaning mode.
According to some embodiments of the present application, the coating of the glue on the insulating film of the first envelope region, and the curing of the glue, includes:
coating glue on the insulating film of the first coating area by adopting one mode of spray valve spraying, needle head glue dispensing, die head extrusion coating and manual glue coating;
and curing the glue by at least one of ultraviolet lamp, baking and air isolation.
According to some embodiments of the present application, the glue comprises at least one of a UV glue, an acrylic glue, a silicone glue, an epoxy glue, a polyurethane glue, a hot melt glue.
According to some embodiments of the present application, the envelope region further comprises a second envelope region, and the coating of the first envelope region with the glue includes, after curing the glue:
acquiring imaging information of the first coating region and the second coating region;
and calculating the glue thickness of the first coating region according to the imaging information.
According to some embodiments of the present application, the obtaining imaging information of the first and second film cladding regions comprises:
acquiring imaging information of the first coating area and the second coating area in a 3D scanning mode;
and marking the imaging surface of the first coating region as a target surface, and marking the imaging surface of the second coating region as a reference surface.
According to some embodiments of the present application, said calculating a glue thickness of the first envelope region according to the imaging information comprises:
acquiring a first height value of the target surface and a second height value of the reference surface;
and calculating the thickness of the glue by subtracting the first height value from the second height value.
According to the battery of the embodiment of the second aspect of the present application, the battery is coated by the battery coating method according to the first aspect.
The battery according to the embodiment of the application has at least the following beneficial effects: according to the battery coating method, the coating area is divided into the areas on the outer surface of the battery, the overlapping part of the insulating films in the first coating area of the battery is subjected to pressure treatment, the height difference of the overlapping part of the insulating films is reduced, further, the surface energy of the insulating films in the first coating area is subjected to surface energy activation treatment, the surface energy of the insulating films is increased, glue is coated on the insulating films in the first coating area, and the glue is subjected to curing treatment, so that the outer surface of the battery can be protected to a certain extent, the insulating property of the battery can be further improved, the requirement on the insulating property of the battery is met, and the use safety of the battery is improved.
Additional aspects and advantages of the present application 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 present application.
Drawings
The present application is further described with reference to the following figures and examples, in which:
FIG. 1 is a flow chart of a battery encapsulation method according to an embodiment of the present application;
FIG. 2 is a flow chart of a battery encapsulation method according to another embodiment of the present application;
FIG. 3 is a flow chart of a battery encapsulation method according to another embodiment of the present application;
FIG. 4 is a flow chart of a battery encapsulation method according to another embodiment of the present application;
FIG. 5 is a flow chart of a battery encapsulation method according to another embodiment of the present application;
FIG. 6 is a schematic diagram of a battery encapsulation process according to an embodiment of the present application;
fig. 7 is a partial enlarged view of a portion a in fig. 6;
FIG. 8 is a schematic diagram of a battery encapsulation process according to another embodiment of the present application;
reference numerals: 610. a battery; 620. an insulating film; 630. a first envelope region; 640. UV glue; 650. an injection valve; 710. an insulating film overlapping portion; 810. a second film-wrapping region; 820. 3D line laser profilometer.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present number, and the above, below, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
In the description of the present application, reference to the description of the terms "one embodiment," "the present application," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means 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 application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In a first aspect, referring to fig. 1, a battery encapsulation method of the present application includes:
s100, dividing an envelope area on the outer surface of the battery, wherein the envelope area is provided with an insulating film overlapping part and comprises a first envelope area;
s200, carrying out pressurization treatment on the insulating film at the overlapping part of the insulating films of the first envelope region;
s300, carrying out surface energy activation treatment on the insulating film corresponding to the first coating area;
and S400, coating glue on the insulating film of the first coating area, and curing the glue.
In the process of coating the battery, firstly, an outer surface of the battery is divided into a coating area, an insulating film overlapping part is formed in the coating area, the coating area comprises a first coating area, the first coating area is positioned on the outer surface of the battery, and the insulating film at the insulating film overlapping part of the first coating area is subjected to pressure treatment, so that the sealing performance of the insulating film at the insulating film overlapping part can be improved, the insulating film at the insulating film overlapping part is prevented from being tilted, the height difference between the insulating film at the insulating film overlapping part and the insulating film at the non-overlapping part can be reduced, further, the insulating film corresponding to the first coating area is subjected to surface energy activation treatment, and as the polymer of the insulating film has the characteristics of high crystallinity, low polarity or no polarity, the surface energy of the insulating film is low, the adhesive force of a coating can be influenced, and the binding force of the coating can be improved through, the surface energy activation treatment can change the crystallization state of the polymer and improve the surface activity of the insulating film, the common surface energy activation treatment comprises methods such as plasma cleaning and the like, so that the surface energy of the insulating film can be increased, the adhesive force of glue coated on the insulating film to the insulating film is improved, after the glue is coated on the insulating film of the first film wrapping area, the glue of the first film wrapping area is cured, and therefore the bonding stability of the glue on the insulating film can be guaranteed. After the outer surface of the battery is coated, the outer surface of the battery is divided into regions, the coating overlapping part in the first coating region of the battery is subjected to pressurization treatment, the height difference of the insulating film of the overlapping part is reduced, further, the insulating film in the first coating region is subjected to surface energy activation treatment, the surface energy of the insulating film is increased, the insulating film in the first coating region is coated with glue, and the glue is cured, so that the outer surface of the battery can be protected to a certain extent, the insulating property of the battery can be further improved, the requirement on the insulating property of the battery is met, and the use safety of the battery is improved.
In the present application, step S200 includes:
s210, arranging a heat conduction material on the insulating film at the overlapping part of the insulating films;
s220, the insulating film at the overlapping part of the insulating films is heated and pressed.
In order to further improve the flatness of the insulating film on the outer surface of the battery, a heat conducting material may be provided on the insulating film at the overlapping portion of the insulating film, and then the insulating film at the overlapping portion of the insulating film may be subjected to heat and pressure treatment. In order to simplify the coating process and save time, the insulating film in the overlapping portion of the insulating films in the first coating region may be directly subjected to a pressure treatment without heating, but the present invention is not limited thereto.
In the present application, the heat conductive material includes at least one of silicone rubber, and silicone rubber. In order to prevent damage to the insulating film, when the insulating film at the overlapping portion of the insulating films in the first envelope region is subjected to heat and pressure treatment, a soft heat conductive material is selected for heat conduction, such as silica gel, rubber, silicone rubber, or the like, so that it is possible to improve the flatness of the insulating film on the outer surface of the battery and to ensure that the insulating film is not damaged when the insulating film at the overlapping portion of the insulating films is subjected to heat and pressure.
In the present application, step S300 includes:
and carrying out surface energy activation treatment on the insulating film by adopting a plasma cleaning mode.
Because many polymers are chemically inert and are not easy to adhere to other materials, the surfaces of the polymers can be changed by plasma cleaning, so that many polymers can accept adhesives and coatings, the insulating film is subjected to surface energy activation treatment by adopting a plasma cleaning mode, the insulating film can form a surface with high activity to the adhesives, namely, the surface energy of the insulating film is increased, so that the insulating film can accept the adhesives more easily, the adhesive force of the adhesives to the insulating film is improved, the insulating property of the battery can be improved after the adhesives are coated on the insulating film on the outer surface of the battery, the battery can meet the requirement of the insulating property, and the use safety of the battery is improved.
It should be noted that, a chemical plating method may also be used to perform surface energy activation on the insulating film, and according to the principle of redox reaction, a solution of a metal compound with catalytic activity is used to process the insulating film, and since some substances that are easily oxidized are adsorbed on the surface of a material such as the insulating film with a certain adsorption capacity, metal ions in the solution of the metal compound can be reduced to form a plating layer on the surface of the insulating film, so that the insulating film can more easily accept an adhesive, the adhesion of the adhesive to the insulating film is improved, and thus the insulating performance of the battery can be improved after the adhesive is coated on the insulating film on the outer surface of the battery, and other activation methods may also be used to perform surface energy activation on the insulating film, which is not limited to this.
Referring to fig. 2, in the present application, step S400 includes:
s410, coating glue on the insulating film of the first film wrapping area by adopting one of the modes of spraying of a jet valve, dispensing of a needle head, extrusion coating of a die head and manual glue coating;
and S420, curing the glue by at least one of ultraviolet lamp, baking and air isolation.
When the insulating film of the first coating region is coated with the glue, the glue can be coated on the insulating film of the first coating region in one of the modes of spraying by using a spraying valve, dispensing by using a needle head, extruding by using a die head and manually coating the glue, for example, the UV glue is sprayed on the insulating film of the first coating region by using a non-contact high-frequency spraying valve, so that the direct contact with the battery can be avoided when the glue is coated, the damage to the insulating film on the outer surface of the battery can be avoided, and the insulating film on the outer surface of the battery can be well protected; after the glue is coated, the glue is cured by at least one of ultraviolet lamp curing, baking and air isolation, so that the bonding stability of the glue on the insulating film can be further ensured, and the insulating property of the battery is improved. It should be noted that the curing form of the glue corresponds to the characteristics of the glue, for example, the first envelope region is coated with UV glue, the UV glue is cured by an ultraviolet lamp, or other glue is coated, and the glue is cured by other methods such as baking, chemical reaction, solvent evaporation, air isolation, and the like, but not limited thereto.
In the present application, the glue includes at least one of UV glue, acrylic glue, silica gel glue, epoxy glue, polyurethane glue, and hot melt glue. In order to improve the applicability of the battery coating method, at least one of UV glue, acrylic glue, silica gel glue, epoxy resin glue, polyurethane glue and hot melt glue can be coated on the insulating film of the first coating area, and meanwhile, the glue is cured in other modes such as baking, chemical reaction, solvent volatilization, air isolation and the like correspondingly, so that the selection of the glue is diversified, the battery coating method is suitable for various batteries and different occasions, and the applicability of the battery coating method and the applicability of the battery are improved.
Referring to fig. 3, in the present application, the divided envelope regions further include a second envelope region, and after step S400, the method includes:
s500, acquiring imaging information of the first coating area and the second coating area;
s600, calculating the glue thickness of the first coating area according to the imaging information.
Because the thickness of the glue coated on the outer surface of the battery can directly influence the improvement effect of the insulation performance of the battery, the thickness of the coated glue needs to be reasonably controlled, when the outer surface of the battery is subjected to region division, the divided regions further comprise a second film wrapping region, the second film wrapping region is positioned on the outer surface of the battery, it needs to be understood that the second film wrapping region is not subjected to any treatment after being wrapped by an insulating film, the area of the second film wrapping region is far smaller than that of the first film wrapping region, the glue is coated on the insulating film of the first film wrapping region, after the glue is subjected to curing treatment, the imaging information of the first film wrapping region and the second film wrapping region is obtained, the glue thickness of the first film wrapping region is calculated according to the imaging information of the first film wrapping region and the second film wrapping region, and thus the thickness of the glue coated on the outer surface of the battery, reasonable management and control are carried out, so that the insulation performance of the battery is further improved, and the use safety of the battery is ensured.
Referring to fig. 4, in the present application, step S500 includes:
s510, acquiring imaging information of the first film wrapping area and the second film wrapping area in a 3D scanning mode;
and S520, marking the imaging surface of the first coating region as a target surface and marking the imaging surface of the second coating region as a reference surface.
3D scanning is carried out on the outer surface of the battery from top to bottom or from bottom to top, imaging information of a first coating area and a second coating area is obtained, an imaging surface marked with the first coating area is a target surface, an imaging surface marked with the second coating area is a reference surface, and it is understood that in the process of obtaining the imaging information of the first coating area and the second coating area, 3D scanning can be carried out on the outer surface of the battery by adopting a 3D line laser profiler, the mode is non-contact size detection, compared with contact detection, the size data distortion caused by glue compression can be effectively avoided, and the glue can be prevented from being damaged; when the imaging surface of the second film wrapping region is marked, the imaging surface of the second film wrapping region can be parallelly expanded firstly, and the imaging surface after parallel expansion is used as a reference surface, so that the problem that the size measurement is inaccurate due to the fact that the area of the second film wrapping region is too small can be solved, the data accuracy of measurement is improved, the accurate control of the thickness of glue is realized, and the insulation performance of the battery is ensured to meet the requirements.
Referring to fig. 5, in the present application, step S600 includes:
s610, acquiring a first height value of the target surface and a second height value of the reference surface;
s620, calculating the glue thickness by subtracting the first height value from the second height value.
The first height value of the target surface and the second height value of the reference surface can be obtained from the imaging information of the first coating area and the second coating area, the first height value and the second height value are subjected to subtraction, and the glue thickness can be calculated. For example, the first height value of the acquired target surface is h1I.e. first packages of glueThe surface thickness of the film region is h1The second height of the reference surface is h2I.e. the surface thickness of the second envelope region not coated with glue is h2And the calculated thickness of the glue is h ═ h1-h2The method is simple in calculation and convenient to operate.
Referring to fig. 6 to 8, the following describes a battery encapsulation process in a specific embodiment, and it should be understood that the following description is only exemplary and not a specific limitation of the present application.
In the process of enveloping the battery 610, firstly, an enveloping region is divided from the outer surface of the battery 610, an insulating film overlapping part 710 is formed in the enveloping region, the enveloping region comprises a first enveloping region 630 and a second enveloping region 810, both the first enveloping region 630 and the second enveloping region 810 are positioned on the outer surface of the battery, soft heat-conducting material silica gel is arranged on the insulating film 620 of the insulating film overlapping part 710 of the first enveloping region 630 on the battery 610, and the insulating film 620 of the insulating film overlapping part 710 of the first enveloping region 630 on the battery 610 is subjected to heating and pressurizing treatment, so that the sealing performance of the insulating film 620 of the insulating film overlapping part 710 can be improved, the insulating film 620 of the insulating film overlapping part 710 is prevented from being lifted, meanwhile, the height difference between the insulating film 620 of the insulating film overlapping part 710 and the insulating film 620 of the non-overlapping part can be reduced, and the insulating film 620 of the first enveloping region 630 is subjected to surface energy activation treatment by adopting, the surface energy of the insulating film 620 is increased, the UV glue 640 is sprayed on the insulating film 620 of the first coating area 630 by the injection valve 650, and the UV glue 640 is cured by an ultraviolet lamp curing mode, so that the outer surface of the battery 610 can be protected to a certain extent, the insulating property of the battery 610 can be further improved, the requirement on the insulating property of the battery 610 is met, and the use safety of the battery 610 is improved.
Meanwhile, a part of a smaller area is reserved on the outer surface of the battery 610 and is used as a second coating area 810, the second coating area 810 is not processed after being coated with the insulating film 620, the area of the second coating area 810 is far smaller than that of the first coating area 630, and a 3D line laser profile instrument 820 is adopted for arranging the battery 61Performing 3D scanning on the outer surface of the first film wrapping region 630 and the second film wrapping region 810 from top to bottom to obtain imaging information of the first film wrapping region 630 and the second film wrapping region 810, firstly performing parallel expansion on an imaging surface of the second film wrapping region 810 in 3D scanning software, marking the imaging surface after the parallel expansion as a reference surface, marking the imaging surface of the first film wrapping region 630 as a target surface, and obtaining a first height value h of the target surface1That is, the surface thickness of the first coating region 630 coated with the UV glue 640 is h1The second height of the reference surface is h2I.e., the surface thickness of the second coating region 810 not coated with the UV glue 640 is h2The calculated thickness of the UV glue 640 is h ═ h1-h2The thickness of the UV glue 640 that can coat the surface of battery 610 like this carries out on-line monitoring, reasonable management and control to further improve the insulating properties of battery, guarantee the safety in utilization of battery.
In a second aspect, the application also provides a battery adopting the battery enveloping method.
The battery according to the embodiment of the application has at least the following beneficial effects: according to the battery coating method, the coating area is divided into the areas on the outer surface of the battery, the overlapping part of the insulating films in the first coating area of the battery is subjected to pressure treatment, the height difference of the overlapping part of the insulating films is reduced, further, the surface energy of the insulating films in the first coating area is subjected to surface energy activation treatment, the surface energy of the insulating films is increased, glue is coated on the insulating films in the first coating area, and the glue is subjected to curing treatment, so that the outer surface of the battery can be protected to a certain extent, the insulating property of the battery can be further improved, the requirement on the insulating property of the battery is met, and the use safety of the battery is improved.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present application. Furthermore, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
Claims (10)
1. The battery coating method is characterized by comprising the following steps:
dividing an outer surface of the battery into envelope regions, wherein the envelope regions are formed with overlapping portions of insulating films and comprise first envelope regions;
performing a pressing process on the insulating film of the insulating film overlapping portion of the first envelope region;
performing surface energy activation treatment on the insulating film corresponding to the first coating region;
and coating glue on the insulating film of the first coating area, and curing the glue.
2. The battery enveloping method according to claim 1, wherein the pressing of the insulating film of the overlapping portion of the insulating films of the first envelope region comprises:
providing a heat conductive material on the insulating film at the overlapping portion of the insulating films;
and heating and pressurizing the insulating film at the overlapping part of the insulating films.
3. The battery encapsulation method according to claim 2, wherein the heat conductive material comprises at least one of silicone rubber, and silicon rubber.
4. The method for encapsulating a battery according to claim 1, wherein the step of subjecting the insulating film corresponding to the first encapsulating region to surface energy activation treatment comprises:
and carrying out surface energy activation treatment on the insulating film by adopting a plasma cleaning mode.
5. The method for coating the battery according to claim 1, wherein the step of coating glue on the insulating film of the first coating region and curing the glue comprises the following steps:
coating glue on the insulating film of the first coating area by adopting one mode of spray valve spraying, needle head glue dispensing, die head extrusion coating and manual glue coating;
and curing the glue by at least one of ultraviolet lamp, baking and air isolation.
6. The method for coating a battery according to claim 5, wherein the glue comprises at least one of UV glue, acrylic glue, silicone glue, epoxy glue, polyurethane glue and hot melt glue.
7. The battery enveloping method as claimed in any one of claims 1 to 6, wherein the enveloping region further comprises a second enveloping region, and the coating of the insulating film of the first enveloping region with glue comprises, after curing the glue:
acquiring imaging information of the first coating region and the second coating region;
and calculating the glue thickness of the first coating region according to the imaging information.
8. The battery encapsulation method according to claim 7, wherein the acquiring of the imaging information of the first and second encapsulation regions comprises:
acquiring imaging information of the first coating area and the second coating area in a 3D scanning mode;
and marking the imaging surface of the first coating region as a target surface, and marking the imaging surface of the second coating region as a reference surface.
9. The battery encapsulation method according to claim 8, wherein the calculating the glue thickness of the first encapsulation area according to the imaging information comprises:
acquiring a first height value of the target surface and a second height value of the reference surface;
and calculating the thickness of the glue by subtracting the first height value from the second height value.
10. A battery, wherein the battery is coated by the battery coating method according to any one of claims 1 to 9.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798147A (en) * | 2021-09-16 | 2021-12-17 | 广州小鹏汽车科技有限公司 | Module solidification equipment |
| CN114976391A (en) * | 2022-06-24 | 2022-08-30 | 欣旺达电动汽车电池有限公司 | Square battery coating method and square battery |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005259619A (en) * | 2004-03-15 | 2005-09-22 | Shin Kobe Electric Mach Co Ltd | Laminated film sheathed battery |
| CN105098106A (en) * | 2015-08-31 | 2015-11-25 | 王新峰 | Metal housing structure of battery and insulating treatment method for metal housing structure |
| CN106575721A (en) * | 2014-09-03 | 2017-04-19 | 日立汽车系统株式会社 | Prismatic secondary battery |
| CN109904353A (en) * | 2019-01-31 | 2019-06-18 | 欣旺达电子股份有限公司 | The coating method and rectangular lithium ion battery of coat insulating film |
| CN209487639U (en) * | 2018-12-12 | 2019-10-11 | 上海航天电源技术有限责任公司 | A kind of production line for automatically assembling of rectangular aluminum-shell lithium battery mould group |
| CN211000517U (en) * | 2019-07-11 | 2020-07-14 | 多米诺标识科技有限公司 | Laminate polymer battery's online yard assembly line that spouts |
| CN111477946A (en) * | 2020-05-26 | 2020-07-31 | 苏州凌威新能源科技有限公司 | Battery and battery preparation method |
| CN211265549U (en) * | 2019-11-20 | 2020-08-14 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack and device |
| US20200274208A1 (en) * | 2017-12-15 | 2020-08-27 | Erbslöh Aluminium Gmbh | Battery element having a thermal conduction element |
-
2021
- 2021-01-06 CN CN202110013282.9A patent/CN112736330B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005259619A (en) * | 2004-03-15 | 2005-09-22 | Shin Kobe Electric Mach Co Ltd | Laminated film sheathed battery |
| CN106575721A (en) * | 2014-09-03 | 2017-04-19 | 日立汽车系统株式会社 | Prismatic secondary battery |
| CN105098106A (en) * | 2015-08-31 | 2015-11-25 | 王新峰 | Metal housing structure of battery and insulating treatment method for metal housing structure |
| US20200274208A1 (en) * | 2017-12-15 | 2020-08-27 | Erbslöh Aluminium Gmbh | Battery element having a thermal conduction element |
| CN209487639U (en) * | 2018-12-12 | 2019-10-11 | 上海航天电源技术有限责任公司 | A kind of production line for automatically assembling of rectangular aluminum-shell lithium battery mould group |
| CN109904353A (en) * | 2019-01-31 | 2019-06-18 | 欣旺达电子股份有限公司 | The coating method and rectangular lithium ion battery of coat insulating film |
| CN211000517U (en) * | 2019-07-11 | 2020-07-14 | 多米诺标识科技有限公司 | Laminate polymer battery's online yard assembly line that spouts |
| CN211265549U (en) * | 2019-11-20 | 2020-08-14 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack and device |
| CN111477946A (en) * | 2020-05-26 | 2020-07-31 | 苏州凌威新能源科技有限公司 | Battery and battery preparation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113798147A (en) * | 2021-09-16 | 2021-12-17 | 广州小鹏汽车科技有限公司 | Module solidification equipment |
| CN114976391A (en) * | 2022-06-24 | 2022-08-30 | 欣旺达电动汽车电池有限公司 | Square battery coating method and square battery |
| CN114976391B (en) * | 2022-06-24 | 2023-07-14 | 欣旺达电动汽车电池有限公司 | Square battery coating method and square battery |
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Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518000 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |