CN113192764A - Preparation method and preparation device of high-sealing lithium ion capacitor - Google Patents
Preparation method and preparation device of high-sealing lithium ion capacitor Download PDFInfo
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- CN113192764A CN113192764A CN202110484978.XA CN202110484978A CN113192764A CN 113192764 A CN113192764 A CN 113192764A CN 202110484978 A CN202110484978 A CN 202110484978A CN 113192764 A CN113192764 A CN 113192764A
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- cover plate
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- lithium ion
- aluminum
- glass metal
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- 238000007789 sealing Methods 0.000 title claims abstract description 56
- 239000003990 capacitor Substances 0.000 title claims abstract description 31
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 92
- 239000002184 metal Substances 0.000 claims abstract description 92
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 61
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 58
- 239000011521 glass Substances 0.000 claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000003792 electrolyte Substances 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 18
- 238000009413 insulation Methods 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 240000004282 Grewia occidentalis Species 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 2
- 239000005022 packaging material Substances 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000000178 monomer Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 10
- 238000005253 cladding Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/04—Hybrid capacitors
- H01G11/06—Hybrid capacitors with one of the electrodes allowing ions to be reversibly doped thereinto, e.g. lithium ion capacitors [LIC]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
- H01G11/18—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against thermal overloads, e.g. heating, cooling or ventilating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/78—Cases; Housings; Encapsulations; Mountings
- H01G11/80—Gaskets; Sealings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/003—Apparatus or processes for encapsulating capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G13/00—Apparatus specially adapted for manufacturing capacitors; Processes specially adapted for manufacturing capacitors not provided for in groups H01G4/00 - H01G11/00
- H01G13/006—Apparatus or processes for applying terminals
-
- 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
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a preparation method and a preparation device of a high-sealing lithium ion capacitor, relating to the technical field of lithium ion capacitors, the invention comprises a metal shell and a glass metal cover plate, wherein a battery core is arranged in the metal shell, a positive electrode tab and a negative electrode tab are welded at the top end of the battery core, the glass metal cover plate is welded at the top end of the metal shell, the traditional rubber plug is changed into an aluminum nail by improving packaging materials and structures, the aluminum nail is arranged in a liquid injection hole by utilizing a welding mode, the phenomenon that the rubber plug is pulled by a metal lead to cause liquid leakage is avoided, meanwhile, the aluminum nail is not easy to be corroded by electrolyte, meanwhile, a detachable sealing cover is arranged on the metal cover plate, the protruding aluminum nail is buckled by an annular groove, the liquid leakage is further avoided, the sealing performance, the corrosion resistance and the pressure resistance after a monomer and an assembly system are effectively improved, and a heat insulation plate is arranged between the metal shell and the battery core, the quality of the lithium ion capacitor can be prevented from being influenced by overhigh heat, and the service life of the lithium ion capacitor is prolonged.
Description
Technical Field
The invention relates to the technical field of lithium ion capacitors, in particular to a preparation method and a preparation device of a high-sealing lithium ion capacitor.
Background
The lithium ion capacitor is a novel energy storage element between the super capacitor and the secondary lithium battery, structurally adopts the combination of a positive electrode material of a double electric layer capacitor and a negative electrode material with the redox behavior of lithium ion insertion-separation, and has the characteristics of the super capacitor and the lithium ion battery. The method is widely applied to the fields of electric automobiles, wind and light electricity storage, intelligent power grid frequency modulation and peak shaving, rail transit, power station direct-current operation power supplies in power systems, aerospace facilities, portable electronic products, national defense war industry and the like.
At present, most of winding type lithium ion super capacitor manufacturers adopt a packaging technology of a metal shell and a rubber plug, and the main technical route of the technology is as follows: firstly, the tab of the wound battery core is inserted into the glue plug hole, then the liquid is injected, and then the metal shell is loaded, and the sealing of the rubber plug and the metal shell is completed through extrusion. In the process, the lug and the rubber plug are directly contacted and sealed, and the rubber plug is easily damaged by a metal lead due to the material, so that liquid leakage is caused; on the other hand, the rubber plug is corroded by electrolyte or aged by cold and hot impact after being stored for a long time, and the risk of liquid leakage also exists.
Therefore, it is necessary to provide a method and an apparatus for manufacturing a high-sealing lithium ion capacitor to solve the above problems.
Disclosure of Invention
The present invention is directed to a method and an apparatus for manufacturing a high-sealing lithium ion capacitor, so as to solve the problems of the background art.
The invention specifically adopts the following technical scheme for realizing the purpose:
a preparation method of a high-sealing lithium ion capacitor comprises the following steps:
s1: firstly, respectively welding a positive terminal and a negative terminal on two aluminum columns, wherein the positive terminal and the negative terminal need to penetrate through the aluminum columns;
s2: then drying the prepared battery cell, and after the battery cell is completely dried, respectively welding a positive electrode lug and a negative electrode lug arranged on the top surface of the battery cell with a negative electrode terminal and a positive electrode terminal installed on a glass metal cover plate;
s3: then, the mounted battery core is arranged in a metal shell, the outer surface of the battery core needs to be tightly attached to an arc-shaped supporting sheet arranged in the heat insulation plate, then a glass metal cover plate is closed, and the glass metal cover plate and the metal shell are welded well;
s4: injecting electrolyte into the metal shell through an injection hole formed in the glass metal cover plate, wherein the liquid level of the electrolyte is higher than the positive electrode lug and the negative electrode lug;
s5: after the electrolyte is filled, inserting the aluminum nail into a liquid injection hole in the glass metal cover plate, compacting the aluminum nail, and welding and sealing the aluminum nail and the glass metal cover plate;
s6: and finally, buckling the sealing cover in a mounting groove formed in the glass metal cover plate, inserting two arc-shaped through holes formed in the sealing cover on the positive terminal and the negative terminal, inserting a four-corner wrench in a rectangular groove formed in the sealing cover, rotating the sealing cover by using the four-corner wrench, wherein the rotating arc length is just equal to the arc length of the arc-shaped through hole, and screwing the sealing cover into the mounting groove to complete the preparation of the lithium ion capacitor.
The utility model provides a high leakproofness lithium ion capacitor's preparation facilities, includes metal casing and glass metal cover plate, electric core has been placed to metal casing's inside, the top welding of electric core has anodal utmost point ear and negative pole utmost point ear, metal casing's top welding has glass metal cover plate, glass metal cover plate's inside is equipped with a pair of mounting hole, two aluminium post, two have all been welded in the mounting hole insert respectively in the aluminium post and be equipped with anodal terminal and negative terminal, anodal terminal and negative terminal all run through the aluminium post and are located metal casing one end respectively with electric core peripheral hardware's negative pole utmost point ear and anodal utmost point ear welding, glass metal cover plate's inside just is located and is equipped with between two mounting holes and annotates the liquid hole, annotate the shape that the liquid hole is the T style of calligraphy, just it has welded the aluminium nail to annotate the downthehole.
Further, the upper surface of glass metal cover plate is equipped with the mounting groove, be equipped with the internal thread on the inside wall of mounting groove, install sealed lid in the mounting groove, be equipped with the external screw thread on the side of sealed lid, just the internal thread threaded connection that sealed lid was established through the external screw thread of peripheral hardware and mounting groove, the inside of sealed lid is equipped with the arc perforation that is equipped with a pair of crisscross setting, the fenestrate width of arc equals the diameter of axle of anodal terminal and negative terminal, just anodal terminal and negative terminal run through two arc perforations respectively.
Furthermore, a heat insulation plate is fixedly mounted on the inner wall of the metal shell, the heat insulation plate wraps the battery core, a plurality of arc support pieces are fixedly mounted on the inner wall of the heat insulation plate, and each arc support piece is attached to the outer surface of the battery core.
Further, the bottom surface of aluminium nail and notes liquid hole laminating is equipped with the seal groove, just install the sealing washer in the seal groove.
Further, the upper surface of the sealing cover is provided with a rectangular groove between the two arc-shaped through holes, the lower surface of the sealing cover is provided with an annular groove right above the aluminum nail, and the diameter of the annular groove is larger than the diameter of the aluminum nail.
Further, metal casing adopts aluminium or stainless steel material, glass metal cover plate adopts aluminium or metal alloy material, adopt the glass material between glass metal cover plate and positive terminal and the negative terminal, positive terminal and negative terminal adopt copper to add the cladding material and aluminium to add the cladding material respectively.
The invention has the following beneficial effects:
the invention mainly changes the traditional rubber plug into the aluminum nail by improving the packaging material and the structure, the aluminum nail is arranged in the liquid injection hole by utilizing the welding mode, the rubber plug is prevented from being damaged by the metal lead wire to cause liquid leakage, and meanwhile, the aluminum nail is not easy to be corroded by electrolyte, so that the aging of the aluminum nail is not worried about.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of a lithium ion capacitor according to the present invention;
FIG. 2 is a schematic view of the structure of a glass-metal cover plate according to the present invention;
FIG. 3 is a schematic view of the bottom structure of the glass-metal cover plate of the present invention;
FIG. 4 is a cross-sectional view of a lithium-ion capacitor of the present invention;
FIG. 5 is a cross-sectional view of a glass-to-metal cover plate of the present invention;
fig. 6 is a schematic view of the aluminum nail structure of the present invention.
Reference numerals: 1. a metal housing; 2. a glass-metal cover plate; 201. mounting grooves; 202. an internal thread; 203. a liquid injection hole; 204. mounting holes; 3. a heat insulation plate; 301. arc-shaped supporting sheets; 4. an electric core; 401. a positive electrode tab; 402. a negative electrode tab; 5. a sealing cover; 501. an annular groove; 502. a rectangular groove; 503. arc perforation; 504. an external thread; 6. an aluminum column; 7. a negative terminal; 8. a positive terminal; 9. aluminum nails; 901. a sealing groove; 902. and (5) sealing rings.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, cannot be construed as limiting the present invention.
As shown in fig. 1 to 6, the preparation method of the present invention comprises the steps of:
s1: firstly, respectively welding a positive terminal 7 and a negative terminal 8 on two aluminum columns 6, wherein the positive terminal 7 and the negative terminal 8 need to penetrate through the aluminum columns 6;
s2: then, drying the prepared battery cell 4, and after the battery cell 4 is completely dried, respectively welding a positive electrode tab 401 and a negative electrode tab 402 arranged on the top surface of the battery cell 4 with a negative electrode terminal 7 and a positive electrode terminal 8 arranged on the glass metal cover plate 2;
s3: then, the installed battery cell 4 is arranged in the metal shell 1, the outer surface of the battery cell 4 needs to be tightly attached to an arc-shaped supporting sheet 301 arranged in the heat insulation plate 3, then a glass metal cover plate 2 is closed, and the glass metal cover plate 2 and the metal shell 1 are welded well;
s4: injecting electrolyte into the metal shell 1 through an injection hole 203 arranged in the glass metal cover plate 2, wherein the liquid level of the electrolyte is higher than the anode tab 401 and the cathode tab 402;
s5: after the electrolyte is filled, inserting the aluminum nail 9 into an electrolyte filling hole 203 arranged in the glass metal cover plate 2, compacting the aluminum nail 9, and then welding and sealing the aluminum nail 9 and the glass metal cover plate 2;
s6: finally, the sealing cover 5 is buckled in the mounting groove 201 formed in the glass metal cover plate 2, two arc-shaped through holes 503 formed in the sealing cover 5 need to be inserted into the positive terminal 8 and the negative terminal 7, the four-corner wrench is inserted into the rectangular groove 502 formed in the sealing cover 5, the sealing cover 5 is rotated by the four-corner wrench, the rotating arc length is just equal to the arc length of the arc-shaped through holes 503, the sealing cover 5 is also just screwed into the mounting groove 201 at the moment, and the preparation of the lithium ion capacitor can be completed.
The utility model provides a high leakproofness lithium ion capacitor's preparation facilities, including metal casing 1 and glass metal cover plate 2, electric core 4 has been placed to metal casing 1's inside, the top welding of electric core 4 has anodal utmost point ear 401 and negative pole utmost point ear 402, the top welding of metal casing 1 has glass metal cover plate 2, the inside of glass metal cover plate 2 is equipped with a pair of mounting hole 204, all weld in two mounting holes 204 has aluminium post 6, it is equipped with anodal terminal 8 and negative terminal 7 to insert respectively in two aluminium posts 6, anodal terminal 8 and negative terminal 7 all run through aluminium post 6 and lie in the one end of metal casing 1 and weld with the anodal utmost point ear 402 of electric core 4 peripheral hardware and anodal utmost point ear 401 respectively, the inside of glass metal cover plate 2 just lies in and is equipped with between two mounting holes 204 and annotates liquid hole 203, it is the shape of T style of calligraphy to annotate liquid hole 203, and the welding has aluminium nail 9 in annotating the liquid hole 203.
In this embodiment, through setting up glass metal cover plate 2, the welding between glass metal cover plate 2 and the metal casing 1 can avoid the material to be corroded by electrolyte and take place the weeping, sets up aluminium nail 9 simultaneously, for traditional plug, the leakproofness is better, and more is difficult for being corroded by electrolyte to holistic sealed effect has been improved.
Specifically, the upper surface of glass metal cover plate 2 is equipped with mounting groove 201, be equipped with internal thread 202 on the inside wall of mounting groove 201, install sealed lid 5 in the mounting groove 201, be equipped with external screw thread 504 on the side of sealed lid 5, and sealed lid 5 passes through external screw thread 504 of peripheral hardware and the internal thread 202 threaded connection who establishes in mounting groove 201, the inside of sealed lid 5 is equipped with the arc perforation 503 that is equipped with a pair of crisscross setting, the width of arc perforation 503 equals the diameter of axle of positive terminal 8 and negative terminal 7, and positive terminal 8 and negative terminal 7 run through two arc perforation 503 respectively.
In the embodiment, the sealing cover 5 is installed on the glass metal cover plate 2 again, and the annular groove 501 formed in the sealing cover 5 buckles the aluminum nail 9, so that the phenomenon that the aluminum nail 9 cannot be welded well and liquid leakage occurs is avoided, and the sealing effect of the whole novel lithium ion capacitor can be improved due to the double-layer sealing structure.
Specifically, a heat insulation plate 3 is fixedly mounted on the inner wall of the metal shell 1, the heat insulation plate 3 is wrapped on the battery core 4, a plurality of arc-shaped supporting pieces 301 are fixedly mounted on the inner wall of the heat insulation plate 3, and each arc-shaped supporting piece 301 is attached to the outer surface of the battery core 4.
In the embodiment, the heat insulation plate 3 is arranged between the metal shell 1 and the battery cell 4, so that the heat generated in the reaction process of the electrolyte can be prevented from influencing the use of the whole equipment, and the safety is higher.
Specifically, a sealing groove 901 is formed in the bottom surface of the aluminum nail 9, which is attached to the liquid injection hole 203, and a sealing ring 902 is installed in the sealing groove 901.
In this embodiment, the aluminum nail 9 is provided with the sealing ring 902, and the sealing effect can be further improved by matching with welding.
Specifically, a rectangular groove 502 is formed in the upper surface of the sealing cover 5 and located between the two arc-shaped through holes 503, an annular groove 501 is formed in the lower surface of the sealing cover 5 and located right above the aluminum nail 9, and the diameter of the annular groove 501 is larger than the shaft diameter of the aluminum nail 9.
In this embodiment, after the sealing cap 5 is installed in the mounting groove 201, the annular groove 501 is used to fasten the protruding aluminum nail 9, thereby preventing the electrolyte from leaking from the gap between the aluminum nail 9 and the injection hole 203.
Specifically, metal casing 1 adopts aluminium or stainless steel material, and glass metal cover plate 2 adopts aluminium or metal alloy material, adopts the glass material between glass metal cover plate 2 and positive terminal 8 and the negative terminal 7, and positive terminal 7 and negative terminal 8 adopt copper respectively to add the cladding material and aluminium adds the cladding material.
Claims (7)
1. The preparation device of the high-sealing lithium ion capacitor comprises a metal shell (1) and a glass metal cover plate (2), and is characterized in that an electric core (4) is placed in the metal shell (1), an anode tab (401) and a cathode tab (402) are welded at the top end of the electric core (4), the glass metal cover plate (2) is welded at the top end of the metal shell (1), a pair of mounting holes (204) are formed in the glass metal cover plate (2), aluminum columns (6) are welded in the two mounting holes (204), an anode terminal (8) and a cathode terminal (7) are respectively inserted in the two aluminum columns (6), the anode terminal (8) and the cathode terminal (7) penetrate through the aluminum columns (6) and one end of the metal shell (1) is respectively welded with the cathode tab (402) and the anode tab (401) which are arranged outside the electric core (4), the glass metal cover plate is characterized in that a liquid injection hole (203) is formed in the glass metal cover plate (2) and located between the two mounting holes (204), the liquid injection hole (203) is T-shaped, and an aluminum nail (9) is welded in the liquid injection hole (203).
2. The device for preparing a high-sealability lithium ion capacitor of claim 1, wherein, an installation groove (201) is arranged on the upper surface of the glass metal cover plate (2), internal threads (202) are arranged on the inner side wall of the installation groove (201), a sealing cover (5) is arranged in the mounting groove (201), an external thread (504) is arranged on the side surface of the sealing cover (5), the sealing cover (5) is in threaded connection with an internal thread (202) arranged in the mounting groove (201) through an external thread (504), a pair of arc-shaped through holes (503) which are arranged in a staggered way is arranged inside the sealing cover (5), the width of the arc-shaped through hole (503) is equal to the axial diameters of the positive terminal (8) and the negative terminal (7), and the positive terminal (8) and the negative terminal (7) respectively penetrate through the two arc-shaped through holes (503).
3. The device for preparing the high-sealability lithium ion capacitor according to claim 1, wherein a heat insulation plate (3) is fixedly mounted on the inner wall of the metal shell (1), the heat insulation plate (3) is wrapped on the battery cell (4), a plurality of arc-shaped supporting sheets (301) are fixedly mounted on the inner wall of the heat insulation plate (3), and each arc-shaped supporting sheet (301) is attached to the outer surface of the battery cell (4).
4. The device for preparing the high-sealability lithium ion capacitor of claim 1, wherein a sealing groove (901) is arranged on the bottom surface of the aluminum nail (9) attached to the liquid injection hole (203), and a sealing ring (902) is arranged in the sealing groove (901).
5. The device for preparing the high-sealability lithium ion capacitor according to claim 2, wherein a rectangular groove (502) is arranged on the upper surface of the sealing cover (5) and between the two arc-shaped through holes (503), an annular groove (501) is arranged on the lower surface of the sealing cover (5) and right above the aluminum nail (9), and the diameter of the annular groove (501) is larger than the shaft diameter of the aluminum nail (9).
6. The device for preparing the high-sealability lithium ion capacitor according to claim 1, wherein the metal shell (1) is made of aluminum or stainless steel, the glass metal cover plate (2) is made of aluminum or metal alloy, glass is used between the glass metal cover plate (2) and the positive terminal (8) and the negative terminal (7), and the positive terminal (7) and the negative terminal (8) are made of copper-plated layer and aluminum-plated layer, respectively.
7. A preparation method of a high-sealing-performance lithium ion capacitor is characterized by comprising the following steps:
a: firstly, respectively welding a positive terminal (7) and a negative terminal (8) on two aluminum columns (6), wherein the positive terminal (7) and the negative terminal (8) need to penetrate through the aluminum columns (6);
b: then, drying the prepared battery cell (4), and after the battery cell (4) is completely dried, respectively welding a positive electrode tab (401) and a negative electrode tab (402) arranged on the top surface of the battery cell (4) with a negative electrode terminal (7) and a positive electrode terminal (8) arranged on a glass metal cover plate (2);
c: then, the installed battery core (4) is arranged in the metal shell (1), the outer surface of the battery core (4) needs to be tightly attached to an arc-shaped supporting sheet (301) arranged in the heat insulation plate (3), then a glass metal cover plate (2) is closed, and the glass metal cover plate (2) and the metal shell (1) are welded well;
d: injecting electrolyte into the metal shell (1) through an electrolyte injection hole (203) arranged in the glass metal cover plate (2), wherein the liquid level of the electrolyte is higher than the anode tab (401) and the cathode tab (402);
e: after the electrolyte is filled, inserting the aluminum nail (9) into a liquid injection hole (203) arranged in the glass metal cover plate (2), compacting the aluminum nail (9), and then welding and sealing the aluminum nail (9) and the glass metal cover plate (2);
f: finally, the sealing cover (5) is buckled in a mounting groove (201) formed in the glass metal cover plate (2), two arc-shaped through holes (503) formed in the sealing cover (5) need to be inserted into the positive terminal (8) and the negative terminal (7), the four-corner wrench is inserted into a rectangular groove (502) formed in the sealing cover (5), the sealing cover (5) is rotated by the four-corner wrench, the rotating arc length is just equal to the arc length of the arc-shaped through holes (503), the sealing cover (5) is also just screwed into the mounting groove (201), and the preparation of the lithium ion capacitor can be completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114141543A (en) * | 2021-11-17 | 2022-03-04 | 江西联晟电子股份有限公司 | Air-tight aluminum electrolytic capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0212907A (en) * | 1988-06-30 | 1990-01-17 | Fanuc Ltd | Terminal structure of capacitor |
| CN1198036A (en) * | 1997-03-27 | 1998-11-04 | 东芝株式会社 | Motor with control device |
| CN107978700A (en) * | 2017-12-28 | 2018-05-01 | 桑德集团有限公司 | A kind of cover board and metal shell for metal battery case |
| CN212010736U (en) * | 2020-03-03 | 2020-11-24 | 肇庆市广源隆电子有限公司 | Packaging structure of capacitor |
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- 2021-04-30 CN CN202110484978.XA patent/CN113192764B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0212907A (en) * | 1988-06-30 | 1990-01-17 | Fanuc Ltd | Terminal structure of capacitor |
| CN1198036A (en) * | 1997-03-27 | 1998-11-04 | 东芝株式会社 | Motor with control device |
| CN107978700A (en) * | 2017-12-28 | 2018-05-01 | 桑德集团有限公司 | A kind of cover board and metal shell for metal battery case |
| CN212010736U (en) * | 2020-03-03 | 2020-11-24 | 肇庆市广源隆电子有限公司 | Packaging structure of capacitor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114141543A (en) * | 2021-11-17 | 2022-03-04 | 江西联晟电子股份有限公司 | Air-tight aluminum electrolytic capacitor |
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| CN113192764B (en) | 2022-05-03 |
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