WO2023070949A1 - Integrated electrode structure capable of rapid curing and sealing, and manufacturing method therefor - Google Patents
Integrated electrode structure capable of rapid curing and sealing, and manufacturing method therefor Download PDFInfo
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- WO2023070949A1 WO2023070949A1 PCT/CN2022/071441 CN2022071441W WO2023070949A1 WO 2023070949 A1 WO2023070949 A1 WO 2023070949A1 CN 2022071441 W CN2022071441 W CN 2022071441W WO 2023070949 A1 WO2023070949 A1 WO 2023070949A1
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- WIPO (PCT)
- Prior art keywords
- electrode
- positive electrode
- negative electrode
- insulating layer
- integrated
- Prior art date
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 title abstract description 18
- 238000001723 curing Methods 0.000 title 1
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 18
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000012812 sealant material Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000010923 batch production Methods 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 16
- 229910052744 lithium Inorganic materials 0.000 description 16
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/183—Sealing members
- H01M50/186—Sealing members characterised by the disposition of the sealing members
- H01M50/188—Sealing members characterised by the disposition of the sealing members the sealing members being arranged between the lid and terminal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- 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
Definitions
- the invention relates to the technical field of lithium battery electrodes, in particular to a rapidly solidified and sealed integrated electrode structure and a manufacturing method.
- a sealing rubber ring is usually installed between the positive electrode case cover and the negative electrode.
- the sealing rubber ring not only prevents the internal electrolyte from flowing out, but also prevents Conductive media such as water droplets from the outside enter the inside of the battery, and at the same time play an insulating role, that is, to prevent the conduction between the positive electrode case cover and the negative electrode electrode.
- the manufacture of the sealing rubber ring is complicated, the waterproof performance is still limited, and the sealing effect is not good. There is still a very big security risk.
- the positive cover and the negative electrode are likely to be pressed too deeply under the condition of excessive external force, resulting in mechanical damage, thus directly squeezing the battery core, resulting in the failure of the battery core.
- the damage of the battery will lead to the risk of powder falling off inside the battery and short circuit.
- the purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provide a fast curing and sealing integrated electrode structure and manufacturing method; save manufacturing time, improve manufacturing efficiency, improve battery yield, and reduce scrap due to sealing rate, suitable for mass production.
- the present invention provides a fast-curing and sealed integrated electrode structure, including an integrated electrode body, which includes a positive electrode made of a first metal conductor and a negative electrode made of a second metal conductor An electrode, a negative electrode is installed above the positive electrode, and an insulating layer is coated between the positive electrode and the negative electrode; the insulating layer is quickly cured by a curing device; the cured insulating layer, positive electrode and The negative electrodes together form an integrated electrode body; a housing is welded and fixed under the integrated electrode body; a battery cell is installed between the integrated electrode body and the housing; a positive ear is installed at one end of the battery cell, and a A negative electrode ear is provided, the positive electrode is fixedly connected to the positive electrode ear, and the negative electrode is fixedly connected to the negative electrode ear.
- the insulating layer is made of a shadowless adhesive material member, a sealant material member, an epoxy resin material member or an adhesive material member; it is coated between the positive electrode and the negative electrode by spraying, dripping or smearing .
- a heating component and an ultraviolet emitting component are installed inside the curing device; the insulating layer can be quickly cured.
- 50 to 100 integrated electrode bodies are accommodated inside the curing device.
- the integrated electrode body is mounted on a steel-cased cylindrical battery, a steel-cased prismatic battery and a steel-cased needle-shaped battery.
- the integrated electrode body and the housing are connected by external peripheral welding; a weld seam is formed between the electrode body and the housing.
- the positive electrode includes a ring-shaped positive electrode side and a convex positive electrode in the middle;
- An annular insulating layer is installed between the negative electrodes; the upper surface of the middle convex positive electrode is higher than the upper surface of the negative electrode; the outer diameter of the side of the annular positive electrode is smaller than the outer diameter of the annular insulating layer, and the annular
- the outer diameter of the side of the positive electrode is larger than the inner diameter of the annular insulating layer, and the outer diameter of the annular insulating layer is smaller than the outer diameter of the negative electrode; a shell is welded and fixed under the negative electrode.
- a groove is provided at the bottom of the middle convex positive electrode; an insulating protrusion is provided on one side of the annular insulating layer, and a negative electrode is installed on one side of the insulating protrusion; the top of the insulating protrusion is The surface is flush with the top surface of the negative electrode.
- the positive electrode is a ring-shaped positive electrode; the negative electrode is circular, and a circular negative electrode is installed above the ring-shaped positive electrode; a circular negative electrode is installed between the circular positive electrode and the circular negative electrode.
- Annular insulating layer; the outer diameter of the annular positive electrode is greater than the outer diameter of the annular insulating layer, the inner diameter of the annular positive electrode is smaller than the inner diameter of the annular insulating layer, and the circular negative electrode is greater than the inner diameter of the annular insulating layer; smaller than the annular insulating layer
- the outer diameter of the layer, the shell is welded and fixed under the annular positive electrode.
- the present invention also provides a method for manufacturing the aforementioned fast-curing and sealed integrated electrode structure, comprising the following steps:
- Step S1 using the first metal conductor to punch and press a sheet-shaped positive electrode; using the second metal conductor to punch and press to make a sheet-shaped negative electrode;
- Step S2 placing the negative electrode above the positive electrode; and coating an insulating layer between the negative electrode and the positive electrode;
- Step S3 put the positive electrode, the negative electrode and the insulating layer together into the curing device to cure the insulating layer; obtain the integrated electrode body;
- Step S4 An electric core is installed under the integrated electrode body; the positive lug on the electric core is welded and fixedly connected to the positive electrode, and the negative lug on the electric core is welded and fixedly connected to the negative electrode;
- Step S5 a casing is welded and fixed under the integrated electrode body; and the cell is sealed.
- the present invention integrates the positive electrode, the negative electrode and the insulating layer together to form an integrated electrode body, and as a component of the lithium battery, it is placed on the top of the lithium battery; the integrated electrode body is made modular; it is beneficial to the lithium battery As long as the battery cell is installed on the lower part of the integrated electrode body, and the shell is welded around the lower part of the integrated electrode body, the battery cell can be sealed to form a lithium battery.
- the electrode body can be mass-manufactured modularly. When connecting the sealed shell, it only needs to be welded around the shell; the connection is simple, which saves manufacturing time, improves manufacturing efficiency, improves the battery yield, and reduces the risk of damage due to sealing. The scrap rate is suitable for mass production.
- the present invention is coated with an insulating layer between the positive electrode and the negative electrode; omits the step of compressing the sealing rubber ring between the positive electrode case cover and the negative electrode case cover in the prior art, improves the manufacturing process, and reduces The difficulty of manufacturing is reduced, so that the integrated electrode body can be mass-produced, without requiring individual press-fitting one by one as in the prior art; the production time is greatly saved, and the production efficiency is improved.
- the insulating layer of the present invention is coated between the positive electrode and the negative electrode by spraying, dripping or smearing, and the insulating layer is made of thermosetting material or light curing material, and is equipped with heating components and ultraviolet rays inside.
- the curing device of the emitting part can quickly cure the insulating layer; the curing device can accommodate multiple integrated electrode bodies, and cure 50 to 100 integrated electrode bodies at a time, which can greatly reduce costs and improve production efficiency, and is more suitable for large quantities Production.
- Fig. 1 is a schematic structural view of an integrated electrode body provided by Embodiment 1 of the present invention.
- FIG. 2 is a schematic structural view of a lithium battery including an integrated electrode body provided by Embodiment 1 of the present invention
- Fig. 3 is a schematic structural view of the integrated electrode body provided by Embodiment 2 of the present invention.
- FIG. 4 is a schematic structural diagram of a lithium battery including an integrated electrode body provided by Embodiment 2 of the present invention.
- Fig. 5 is a schematic structural view of the integrated electrode body provided by Embodiment 3 of the present invention.
- FIG. 6 is a schematic structural view of a lithium battery including an integrated electrode body provided by Embodiment 3 of the present invention.
- 1-integrated electrode body 2-positive electrode, 3-negative electrode, 4-insulation layer, 6-shell, 5-cell, 51-positive ear, 52-negative ear, 7-welding seam, 21-ring positive electrode Electrode side, 22-middle convex positive electrode, 24-groove, 41-insulation protrusion, 25-ring positive electrode.
- Embodiment 1 of the present invention provides a fast-curing and sealed integrated electrode structure.
- the integrated electrode structure includes an integrated electrode body 1, and the integrated electrode body 1 includes a positive electrode 1 made by punching or integrally forming a first metal conductor and a positive electrode 1 made by punching or integrally forming a second metal conductor.
- the first metal conductor and the second metal conductor are generally different metal conductors, and may also be composite metal material components.
- a negative electrode 3 is installed above the positive electrode 2, and in other embodiments, a negative electrode 3 may also be installed below the positive electrode 2, in a word, the The upper and lower relationship between the positive electrode 2 and the negative electrode 3, as well as the definitions of the positive electrode 2 and the negative electrode 3 are easy to imagine, and can be interchanged, and can also be determined according to the actual situation.
- the present invention is not limited. All are protection scope of the present invention.
- an insulating layer 4 is coated between the positive electrode 2 and the negative electrode 3; specifically, the insulating layer 4 is coated on the positive electrode 2 and the negative electrode 3 by spraying, dripping or smearing.
- manual or manipulator can be used to carry out batch coating, which is suitable for mass production and can save production time;
- the present invention adopts the technology of coating insulating layer;
- the steps between the positive electrode case cover and the negative electrode case cover improve the manufacturing process and reduce the manufacturing difficulty, so that the integrated electrode body 1 can be mass-produced without requiring individual press-fitting one by one as in the prior art; It greatly saves production time and improves production efficiency.
- the insulating layer 4 can be made of heat-curable material or light-curable material, so that it can be cured quickly under the conditions of light and heating; further, the insulating layer 4 is made of shadowless adhesive material components, sealant Material member, epoxy resin material member or adhesive material member; After the insulating layer 4 is coated between the positive electrode 2 and the negative electrode 3, it is put into a curing unit equipped with a heating part and an ultraviolet light emitting part as a whole.
- the cured insulating layer 4, positive electrode 2 and negative electrode 3 together form an integrated electrode body 1; further, the inside of the curing device can accommodate multiple integrated electrode bodies 1, once Curing 50 to 100 integrated electrode bodies can greatly reduce costs, improve production efficiency, and is more suitable for mass production.
- a casing 6 is welded and fixed under the integrated electrode body 1; specifically, the integrated electrode body 1 and the casing 6 are connected by external peripheral welding; the electrode body 1 and the casing 6 to form a weld 7; further, the edge of the negative electrode 3 is welded together with the casing 6, so that the casing 6 is also the negative electrode of the lithium battery; further, the integrated electrode body 1 and the casing
- An electric core 5 is also installed between the bodies 6; one end of the electric core 5 is equipped with a positive pole ear 51, and the other end is equipped with a negative pole ear 52, and the positive electrode 2 is fixedly connected with the positive pole ear 51, and the negative pole ear 52 are fixedly welded on the bottom of the housing 6.
- the positive electrode 2, the negative electrode 3 and the insulating layer 4 are integrated together to form an integrated electrode body 1, and as an integral part of the lithium battery, it is placed on the top of the lithium battery; thus, the integrated electrode body 1 Modularization; it is beneficial to the rapid assembly of the modularization of the lithium battery.
- the battery cell 5 is connected to the lower part of the integrated electrode body 1, and the casing 6 is welded around the lower part of the integrated electrode body 1, the battery can be assembled.
- the core 5 is sealed to form a lithium battery.
- the positive electrode 2 includes a ring-shaped positive electrode side 21 and a central convex positive electrode 22; the negative electrode 3 is ring-shaped, and the ring-shaped positive electrode A negative electrode 3 is installed above the electrode side 21, and an annular insulating layer 4 is installed between the annular positive electrode side 21 and the negative electrode 3; the upper surface of the middle convex positive electrode 22 is higher than the negative electrode 3
- the upper surface of the upper surface; the outer diameter of the annular positive electrode side 21 is less than the outer diameter of the annular insulating layer 4, the outer diameter of the annular positive electrode side 21 is greater than the inner diameter of the annular insulating layer 4, and the outer diameter of the annular insulating layer 4
- the outer diameter is smaller than that of the negative electrode 3 ; a casing 6 is welded and fixed below the negative electrode 3 .
- the integrated electrode body 1 is installed on a steel-cased cylindrical battery, a steel-cased prismatic battery, and a steel-cased needle-shaped battery.
- Embodiment 2 of the present invention provides a fast-curing and sealed integrated electrode structure.
- Embodiment 2 is basically the same as Embodiment 1, except that in order to reduce costs, the positive electrode 1 in this embodiment is produced by a stamping process. In order to better adapt to the stamping process, the positive electrode 1 has made certain adaptations. change; the bottom of the middle convex positive electrode 22 is also provided with a groove 24 formed after punching; it can also reduce the weight of the positive electrode 1 to a certain extent and reduce the manufacturing cost.
- one side of the annular insulating layer 4 is provided with an insulating protrusion 41, and one side of the insulating protrusion 41 is provided with a negative electrode 3; further, the top surface of the insulating protrusion 41 is connected to the negative electrode 3.
- the top surface is flush; an insulating protrusion 41 is installed to block the negative electrode 3 from approaching the central convex positive electrode 22, which can prevent the negative electrode 3 from being connected to the central convex positive electrode 22, and reduce the occurrence of lithium battery short circuit. Improve the safety of lithium batteries.
- Embodiment 3 of the present invention provides a fast-curing and sealed integrated electrode structure.
- the third embodiment is basically the same as the first embodiment, except that as shown in Figure 5; in order to further reduce the cost, the positive electrode 1 in this embodiment is produced by a stamping process, and the positive electrode 2 is a ring-shaped positive electrode 25;
- the negative electrode 3 is covered above the annular positive electrode 25 and is circular; an annular insulating layer 4 is arranged between the annular positive electrode 25 and the circular negative electrode 3; the outer diameter of the annular positive electrode 25 is larger than The outer diameter of the annular insulating layer 4, the inner diameter of the annular positive electrode 25 is smaller than the inner diameter of the annular insulating layer 4, and the circular negative electrode 3 is greater than the inner diameter of the annular insulating layer 4; less than the outer diameter of the annular insulating layer 4.
- a housing 6 is welded and fixed below the annular positive electrode 25; thus the housing 6 is also the positive pole of the lithium battery; further, a device is installed between the integrated electrode body 1 and the housing 6
- a battery cell 5 there is a battery cell 5; one end of the battery cell 5 is equipped with a positive pole ear 51, and the other end is equipped with a negative pole ear 52, the negative pole ear 52 is fixedly connected to the upper negative electrode 3, and the positive pole ear 51 is fixedly welded on the shell The bottom of body 6.
- Embodiment 4 of the present invention provides a method for manufacturing a fast-curing sealed integrated electrode structure as described in Embodiment 1, including the following steps.
- Step S1 using the first metal conductor to stamp or integrally form the sheet-shaped positive electrode 1; using the second metal conductor to stamp or integrally form the sheet-shaped negative electrode 3.
- Step S2 place the negative electrode 3 on the positive electrode 2; and coat the insulating layer 4 between the negative electrode 3 and the positive electrode 2.
- the insulating layer 4 is coated between the positive electrode 2 and the negative electrode 3 by spraying, dripping or smearing.
- the insulating layer 4 can be made of heat-curable material or light-curable material, so that it can be cured quickly under the conditions of light and heat.
- the insulating layer 4 is made of shadowless glue material, sealant material, epoxy resin material or adhesive material.
- Step S3 put the positive electrode 2, the negative electrode 3 and the insulating layer 4 into a curing device to cure the insulating layer 4; and obtain the integrated electrode body 1.
- the insulating layer 4 is coated between the positive electrode 2 and the negative electrode 3, it is put into a curing device equipped with a heating component and an ultraviolet emitting component as a whole for rapid curing; thus, after the curing
- the interior of the curing device can accommodate multiple integrated electrode bodies 1, and 50 to 100 integrated electrode bodies can be cured at one time, which can greatly reduce costs and improve production efficiency, and is more suitable for mass production.
- Step S4 An electric core 5 is installed under the integrated electrode body 1; the positive ear 51 on the electric core 5 is welded and fixedly connected to the positive electrode 2, and the negative ear 52 on the electric core 5 is welded to the negative electrode 3 Fixed connection.
- the positive electrode 2 and the negative electrode 3 in the integrated electrode body 1 block each other, it is inconvenient to simultaneously connect the positive electrode ear 51 and the negative electrode ear 52 to the positive electrode 2 and the negative electrode 3 installed above; Connect the positive tab 51 or the negative tab 52 to the lower end of the casing 6, so that the connection can be made more conveniently and the connection needs can be met.
- Step S5 The casing 6 is welded and fixed under the integrated electrode body 1; the battery cell 5 is sealed.
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- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The present invention discloses an integrated electrode structure capable of rapid curing and sealing, comprising an integrated electrode body. The integrated electrode body comprises a positive electrode made from a first metal conductor, and a negative electrode made from a second metal conductor. The negative electrode is arranged above the positive electrode. An insulating layer is coated between the positive electrode and the negative electrode. The insulating layer is rapidly cured by using a curing device. The cured insulating layer, the positive electrode and the negative electrode together form the integrated electrode body. A housing is welded and fixed below the integrated electrode body. A battery cell is arranged between the integrated electrode body and the housing. One end of the battery cell is provided with a positive tab, and the other end is provided with a negative tab. The positive electrode is fixedly connected to the positive tab, and the negative electrode is fixedly connected to the negative tab. By means of the present invention, manufacturing time is saved, manufacturing efficiency is improved, the yield of the battery is improved, the rate of rejection caused by sealing is reduced, and the method is suitable for batch production.
Description
本发明涉及锂电池电极技术领域,特别涉及一种快速固化密封的集成电极结构及制造方法。The invention relates to the technical field of lithium battery electrodes, in particular to a rapidly solidified and sealed integrated electrode structure and a manufacturing method.
现有的钢壳电池,为了将电解液进行密封,通常在正极壳盖和负极电极之间装设有密封胶圈,所述密封胶圈除了防止内部电解液向外流出,并且还起到防止外界的水滴等导电介质进入到电池内部,同时还起到了绝缘作用,即防止正极壳盖和负极电极导通的作用,但是密封胶圈的制造复杂,防水性能还是有限,密封效果并不好,还是存在非常大的安全隐患。In order to seal the electrolyte in the existing steel case batteries, a sealing rubber ring is usually installed between the positive electrode case cover and the negative electrode. The sealing rubber ring not only prevents the internal electrolyte from flowing out, but also prevents Conductive media such as water droplets from the outside enter the inside of the battery, and at the same time play an insulating role, that is, to prevent the conduction between the positive electrode case cover and the negative electrode electrode. However, the manufacture of the sealing rubber ring is complicated, the waterproof performance is still limited, and the sealing effect is not good. There is still a very big security risk.
此外,在对正极壳盖、负极电极和密封胶圈进行装配过程中,需要分别单独对一个放置在正极壳盖和负极电极之间的密封胶圈进行铆压、陶瓷烧结、胶压合,密封胶圈墩封扣边等密封工艺;上述工艺工作效率较低、生产周期长,零件之间容易产生磨损,其中墩封、铆压是机械挤压达成的密封容易出现机械慢性反弹泄露,高温陶瓷烧结密封周期长,高温烧结导致零件变形零件密度变异,工艺复杂成本高效率慢,时间长等现象。In addition, in the process of assembling the positive cover, the negative electrode and the sealing rubber ring, it is necessary to separately perform riveting, ceramic sintering, glue pressing, and sealing of a sealing rubber ring placed between the positive cover and the negative electrode. Sealing technology such as apron pier seal buckle edge; the above-mentioned processes have low working efficiency, long production cycle, and easy wear and tear between parts. Among them, the pier seal and riveting are achieved by mechanical extrusion, and the seal is prone to mechanical chronic rebound leakage. High-temperature ceramics The sintering and sealing cycle is long, the high temperature sintering causes the deformation of the parts and the variation of the density of the parts, the process is complicated, the cost is high, the efficiency is slow, and the time is long.
同时,在墩封和铆压过程中,正极壳盖和负极电极容易在外力过大的情况下发生下压的深度过大,造成机械性损伤,从而直接挤压电池卷芯,导致电池卷芯的损坏,导致电池内部掉粉脱落短路等风险。At the same time, in the process of pier sealing and riveting, the positive cover and the negative electrode are likely to be pressed too deeply under the condition of excessive external force, resulting in mechanical damage, thus directly squeezing the battery core, resulting in the failure of the battery core. The damage of the battery will lead to the risk of powder falling off inside the battery and short circuit.
本发明的目的在于克服现有技术中的上述缺陷,提供一种快速固化密封的集成电极结构及制造方法;节约了制造时间,提高了制造效率,提高了电池成品率,降低因为密封产生的报废率,适合批量生产。The purpose of the present invention is to overcome the above-mentioned defects in the prior art, and provide a fast curing and sealing integrated electrode structure and manufacturing method; save manufacturing time, improve manufacturing efficiency, improve battery yield, and reduce scrap due to sealing rate, suitable for mass production.
为实现上述目的,本发明提供了一种快速固化密封的集成电极结构,包括集成电极本体,所述集成电极本体包括由第一金属导体制成的正极电极和由第二金属导体制成的负极电极,所述正极电极上方装设有负极电极,所述正极电极和负极电极之间涂覆有绝缘层;所述绝缘层采用固化装置进行快速固化;所述固化后的绝缘层、正极电极和负极电极一起组成集成电极本体;所述集成电极本体下方焊接固定有壳体;所述集成电极本体和壳体之间装设有电芯;所述电芯一端装设有正极耳,另一端装设有负极耳,所述正极电极与正极耳固定连接,所述负极电极与负极耳固定连接。To achieve the above object, the present invention provides a fast-curing and sealed integrated electrode structure, including an integrated electrode body, which includes a positive electrode made of a first metal conductor and a negative electrode made of a second metal conductor An electrode, a negative electrode is installed above the positive electrode, and an insulating layer is coated between the positive electrode and the negative electrode; the insulating layer is quickly cured by a curing device; the cured insulating layer, positive electrode and The negative electrodes together form an integrated electrode body; a housing is welded and fixed under the integrated electrode body; a battery cell is installed between the integrated electrode body and the housing; a positive ear is installed at one end of the battery cell, and a A negative electrode ear is provided, the positive electrode is fixedly connected to the positive electrode ear, and the negative electrode is fixedly connected to the negative electrode ear.
作为优选的,所述绝缘层采用无影胶材料构件、密封胶材料构件、环氧树脂材料构件或者粘合剂材料构件;采用喷涂、点滴或者涂抹的方式涂覆在正极电极和负极电极之间。Preferably, the insulating layer is made of a shadowless adhesive material member, a sealant material member, an epoxy resin material member or an adhesive material member; it is coated between the positive electrode and the negative electrode by spraying, dripping or smearing .
作为优选的,所述固化装置内部装设有加热部件和紫外线发射部件;将绝缘层快速固化。Preferably, a heating component and an ultraviolet emitting component are installed inside the curing device; the insulating layer can be quickly cured.
作为优选的,所述固化装置内部容纳50至100件集成电极本体。Preferably, 50 to 100 integrated electrode bodies are accommodated inside the curing device.
作为优选的,所述集成电极本体装设在钢壳圆柱电池、钢壳方型电池和钢壳针型电池上。Preferably, the integrated electrode body is mounted on a steel-cased cylindrical battery, a steel-cased prismatic battery and a steel-cased needle-shaped battery.
作为优选的,所述集成电极本体与壳体采用外部周边焊接的方式进行连接;所述电极本体与壳体之间形成焊缝。Preferably, the integrated electrode body and the housing are connected by external peripheral welding; a weld seam is formed between the electrode body and the housing.
作为优选的,所述正极电极包括环形正极电极侧边和中间凸型正极电极;所述负极电极呈环形,所述环形正极电极侧边上方装设有负极电极,所述环形正极电极侧边和负极电极之间装设有环形绝缘层;所述中间凸型正极电极的上表面高于负极电极的上表面;所述环形正极电极侧边的外径小于环形绝缘层的外径,所述环形正极电极侧边的外径大于环形绝缘层的内径,所述环形绝缘层的外径小于负极电极的外径;所述负极电极下方焊接固定有壳体。 Preferably, the positive electrode includes a ring-shaped positive electrode side and a convex positive electrode in the middle; An annular insulating layer is installed between the negative electrodes; the upper surface of the middle convex positive electrode is higher than the upper surface of the negative electrode; the outer diameter of the side of the annular positive electrode is smaller than the outer diameter of the annular insulating layer, and the annular The outer diameter of the side of the positive electrode is larger than the inner diameter of the annular insulating layer, and the outer diameter of the annular insulating layer is smaller than the outer diameter of the negative electrode; a shell is welded and fixed under the negative electrode.
作为优选的,所述中间凸型正极电极底部还设有凹槽;所述环形绝缘层一侧设有绝缘凸起,所述绝缘凸起一侧装设有负极电极;所述绝缘凸起顶面与负极电极顶面平齐。Preferably, a groove is provided at the bottom of the middle convex positive electrode; an insulating protrusion is provided on one side of the annular insulating layer, and a negative electrode is installed on one side of the insulating protrusion; the top of the insulating protrusion is The surface is flush with the top surface of the negative electrode.
作为优选的,所述正极电极为环形正极电极;所述负极电极呈圆形,所述环形正极电极上方装设有圆形负极电极;所述环形正极电极和圆形负极电极之间装设有环形绝缘层;所述环形正极电极的外径大于环形绝缘层的外径,所述环形正极电极的内径小于环形绝缘层的内径,所述圆形负极电极大于环形绝缘层的内径;小于环形绝缘层的外径,所述环形正极电极下方焊接固定有壳体。Preferably, the positive electrode is a ring-shaped positive electrode; the negative electrode is circular, and a circular negative electrode is installed above the ring-shaped positive electrode; a circular negative electrode is installed between the circular positive electrode and the circular negative electrode. Annular insulating layer; the outer diameter of the annular positive electrode is greater than the outer diameter of the annular insulating layer, the inner diameter of the annular positive electrode is smaller than the inner diameter of the annular insulating layer, and the circular negative electrode is greater than the inner diameter of the annular insulating layer; smaller than the annular insulating layer The outer diameter of the layer, the shell is welded and fixed under the annular positive electrode.
本发明还提供了一种制造上述所述的一种快速固化密封的集成电极结构的方法,包括以下步骤:The present invention also provides a method for manufacturing the aforementioned fast-curing and sealed integrated electrode structure, comprising the following steps:
步骤S1;利用第一金属导体冲压制作出片状的正极电极;利用第二金属导体冲压制作出片状的负极电极;Step S1: using the first metal conductor to punch and press a sheet-shaped positive electrode; using the second metal conductor to punch and press to make a sheet-shaped negative electrode;
步骤S2;将负极电极放置在正极电极上方;并在负极电极和正极电极之间涂覆有绝缘层;Step S2: placing the negative electrode above the positive electrode; and coating an insulating layer between the negative electrode and the positive electrode;
步骤S3;将正极电极、负极电极和绝缘层一起放入到固化装置中将绝缘层进行固化;得到集成电极本体;Step S3: put the positive electrode, the negative electrode and the insulating layer together into the curing device to cure the insulating layer; obtain the integrated electrode body;
步骤S4;所述集成电极本体下方装设有电芯;所述电芯上的正极耳与正极电极焊接固定连接,所述电芯上的负极耳与负极电极焊接固定连接;Step S4: An electric core is installed under the integrated electrode body; the positive lug on the electric core is welded and fixedly connected to the positive electrode, and the negative lug on the electric core is welded and fixedly connected to the negative electrode;
步骤S5;所述集成电极本体下方焊接固定有壳体;将电芯进行密封。Step S5: a casing is welded and fixed under the integrated electrode body; and the cell is sealed.
1、本发明将正极电极、负极电极和绝缘层集成在一起组成集成电极本体,并作为锂电池的一个组成部分,放置在锂电池的顶部;将集成电极本体做成模块化;有利于锂电池的模块化组装,只要在集成电极本体的下部装设有电芯,并在集成电极本体的下部周围焊接壳体,就可以将电芯进行密封,组成一个锂电池,采用上述结构,在制造集成电极本体时可以进行批量的模块化制造,连接密封壳体时,只需要在壳体周边焊接一圈;连接简单,节约了制造时间,提高了制造效率,提高了电池成品率,降低因为密封产生的报废率,适合批量生产。1. The present invention integrates the positive electrode, the negative electrode and the insulating layer together to form an integrated electrode body, and as a component of the lithium battery, it is placed on the top of the lithium battery; the integrated electrode body is made modular; it is beneficial to the lithium battery As long as the battery cell is installed on the lower part of the integrated electrode body, and the shell is welded around the lower part of the integrated electrode body, the battery cell can be sealed to form a lithium battery. The electrode body can be mass-manufactured modularly. When connecting the sealed shell, it only needs to be welded around the shell; the connection is simple, which saves manufacturing time, improves manufacturing efficiency, improves the battery yield, and reduces the risk of damage due to sealing. The scrap rate is suitable for mass production.
2、本发明在正极电极和负极电极之间涂覆有绝缘层;省略了现有技术中在将密封胶圈压紧在正极壳盖和负极壳盖之间的步骤,改善了制造工艺,降低了制造难度,使得集成电极本体可以进行批量生产,而不需要和现有技术一样,需要一个一个的单独压装;极大的节约了生产时间,提高了生产效率。2. The present invention is coated with an insulating layer between the positive electrode and the negative electrode; omits the step of compressing the sealing rubber ring between the positive electrode case cover and the negative electrode case cover in the prior art, improves the manufacturing process, and reduces The difficulty of manufacturing is reduced, so that the integrated electrode body can be mass-produced, without requiring individual press-fitting one by one as in the prior art; the production time is greatly saved, and the production efficiency is improved.
3、本发明所述绝缘层采用喷涂、点滴或者涂抹的方式涂覆在正极电极和负极电极之间,并且所述绝缘层采用热固化材料或者光固化材料,使用内部装设有加热部件和紫外线发射部件的固化装置,将绝缘层进行快速固化;所述固化装置内部可以容纳多件集成电极本体,一次固化50至100件集成电极本体,可以大幅度降低成本,提高生产效率,更适合大批量生产。3. The insulating layer of the present invention is coated between the positive electrode and the negative electrode by spraying, dripping or smearing, and the insulating layer is made of thermosetting material or light curing material, and is equipped with heating components and ultraviolet rays inside. The curing device of the emitting part can quickly cure the insulating layer; the curing device can accommodate multiple integrated electrode bodies, and cure 50 to 100 integrated electrode bodies at a time, which can greatly reduce costs and improve production efficiency, and is more suitable for large quantities Production.
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.
图1是本发明实施例一提供的集成电极本体的结构示意图;Fig. 1 is a schematic structural view of an integrated electrode body provided by Embodiment 1 of the present invention;
图2是本发明实施例一提供的包含集成电极本体的锂电池的结构示意图;2 is a schematic structural view of a lithium battery including an integrated electrode body provided by Embodiment 1 of the present invention;
图3是本发明实施例二提供的集成电极本体的结构示意图;Fig. 3 is a schematic structural view of the integrated electrode body provided by Embodiment 2 of the present invention;
图4是本发明实施例二提供的包含集成电极本体的锂电池的结构示意图;4 is a schematic structural diagram of a lithium battery including an integrated electrode body provided by Embodiment 2 of the present invention;
图5是本发明实施例三提供的集成电极本体的结构示意图;Fig. 5 is a schematic structural view of the integrated electrode body provided by Embodiment 3 of the present invention;
图6是本发明实施例三提供的包含集成电极本体的锂电池的结构示意图。FIG. 6 is a schematic structural view of a lithium battery including an integrated electrode body provided by Embodiment 3 of the present invention.
在图中包括有:Included in the figure are:
1-集成电极本体、2-正极电极、3-负极电极、4-绝缘层、6-壳体、5-电芯、51-正极耳、52-负极耳、7-焊缝、21-环形正极电极侧边、22-中间凸型正极电极、24-凹槽、41-绝缘凸起、25-环形正极电极。1-integrated electrode body, 2-positive electrode, 3-negative electrode, 4-insulation layer, 6-shell, 5-cell, 51-positive ear, 52-negative ear, 7-welding seam, 21-ring positive electrode Electrode side, 22-middle convex positive electrode, 24-groove, 41-insulation protrusion, 25-ring positive electrode.
下面将结合本发明本实施方式中的附图,对本发明本实施方式中的技术方案进行清楚、完整地描述,显然,所描述的本实施方式是本发明的一种实施方式,而不是全部的本实施方式。基于本发明中的本实施方式,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他本实施方式,都属于本发明保护的范围。The technical solutions in this embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in this embodiment of the present invention. Obviously, the described embodiment is an embodiment of the present invention, not all This embodiment. Based on this implementation manner in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
实施例一Embodiment one
请参考图1和图2,本发明实施例一提供了一种快速固化密封的集成电极结构。Please refer to FIG. 1 and FIG. 2 , Embodiment 1 of the present invention provides a fast-curing and sealed integrated electrode structure.
如图1所示,所述集成电极结构包括集成电极本体1,所述集成电极本体1包括由第一金属导体冲压或者一体成型制作出的正极电极1和由第二金属导体冲压或者一体成型制作出的负极电极3,所述第一金属导体和第二金属导体一般是不同的金属导体,也可以是复合的金属材料构件。As shown in Figure 1, the integrated electrode structure includes an integrated electrode body 1, and the integrated electrode body 1 includes a positive electrode 1 made by punching or integrally forming a first metal conductor and a positive electrode 1 made by punching or integrally forming a second metal conductor. Out of the negative electrode 3, the first metal conductor and the second metal conductor are generally different metal conductors, and may also be composite metal material components.
如图1所示,在本实施例中,所述正极电极2上方装设有负极电极3,在其他实施例中,也可以在所述正极电极2下方装设有负极电极3,总之,所述正极电极2和负极电极3的上下关系,以及所述正极电极2和负极电极3的定义都容易想要,并且可以进行互换的,还可以根据实际情况进行确定,本发明并不限制,都是本发明的保护范围。As shown in Figure 1, in this embodiment, a negative electrode 3 is installed above the positive electrode 2, and in other embodiments, a negative electrode 3 may also be installed below the positive electrode 2, in a word, the The upper and lower relationship between the positive electrode 2 and the negative electrode 3, as well as the definitions of the positive electrode 2 and the negative electrode 3 are easy to imagine, and can be interchanged, and can also be determined according to the actual situation. The present invention is not limited. All are protection scope of the present invention.
如图1所示,所述正极电极2和负极电极3之间涂覆有绝缘层4;具体的,所述绝缘层4采用喷涂、点滴或者涂抹的方式涂覆在正极电极2和负极电极3之间;如此可以采用人工或者机械手进行批量的涂覆,适合大批量的生产,可以节约生产时间;本发明采用涂覆绝缘层的工艺;可以省略现有技术中在将密封胶圈压紧在正极壳盖和负极壳盖之间的步骤,改善了制造工艺,降低了制造难度,使得集成电极本体1可以进行批量生产,而不需要和现有技术一样,需要一个一个的单独压装;极大的节约了生产时间,提高了生产效率。As shown in Figure 1, an insulating layer 4 is coated between the positive electrode 2 and the negative electrode 3; specifically, the insulating layer 4 is coated on the positive electrode 2 and the negative electrode 3 by spraying, dripping or smearing. In this way, manual or manipulator can be used to carry out batch coating, which is suitable for mass production and can save production time; the present invention adopts the technology of coating insulating layer; The steps between the positive electrode case cover and the negative electrode case cover improve the manufacturing process and reduce the manufacturing difficulty, so that the integrated electrode body 1 can be mass-produced without requiring individual press-fitting one by one as in the prior art; It greatly saves production time and improves production efficiency.
进一步的,所述绝缘层4可以采用热固化材料或者光固化材料,使其在光照和加热的条件下,可以快速固化;更进一步的,所述绝缘层4采用无影胶材料构件、密封胶材料构件、环氧树脂材料构件或者粘合剂材料构件;在正极电极2和负极电极3之间涂覆好绝缘层4后,将其整体放入内部装设有加热部件和紫外线发射部件的固化装置中进行快速固化;如此,所述固化后的绝缘层4、正极电极2和负极电极3一起组成集成电极本体1;进一步的,所述固化装置的内部可以容纳多件集成电极本体1,一次固化50至100件集成电极本体,可以大幅度降低成本,提高生产效率,更适合大批量生产。Further, the insulating layer 4 can be made of heat-curable material or light-curable material, so that it can be cured quickly under the conditions of light and heating; further, the insulating layer 4 is made of shadowless adhesive material components, sealant Material member, epoxy resin material member or adhesive material member; After the insulating layer 4 is coated between the positive electrode 2 and the negative electrode 3, it is put into a curing unit equipped with a heating part and an ultraviolet light emitting part as a whole. Fast curing is carried out in the device; thus, the cured insulating layer 4, positive electrode 2 and negative electrode 3 together form an integrated electrode body 1; further, the inside of the curing device can accommodate multiple integrated electrode bodies 1, once Curing 50 to 100 integrated electrode bodies can greatly reduce costs, improve production efficiency, and is more suitable for mass production.
如图2所示,所述集成电极本体1下方焊接固定有壳体6;具体的,所述集成电极本体1与壳体6采用外部周边焊接的方式进行连接;所述电极本体1与壳体6之间形成焊缝7;进一步的,所述负极电极3的边缘与壳体6焊接在一起,从而所述壳体6也是锂电池的负极;更进一步的,所述集成电极本体1和壳体6之间还装设有电芯5;所述电芯5一端装设有正极耳51,另一端装设有负极耳52,所述正极电极2与正极耳51固定连接,所述负极耳52固定焊接在壳体6的底部。As shown in Figure 2, a casing 6 is welded and fixed under the integrated electrode body 1; specifically, the integrated electrode body 1 and the casing 6 are connected by external peripheral welding; the electrode body 1 and the casing 6 to form a weld 7; further, the edge of the negative electrode 3 is welded together with the casing 6, so that the casing 6 is also the negative electrode of the lithium battery; further, the integrated electrode body 1 and the casing An electric core 5 is also installed between the bodies 6; one end of the electric core 5 is equipped with a positive pole ear 51, and the other end is equipped with a negative pole ear 52, and the positive electrode 2 is fixedly connected with the positive pole ear 51, and the negative pole ear 52 are fixedly welded on the bottom of the housing 6.
如图1所示,所述正极电极2、负极电极3和绝缘层4集成在一起组成集成电极本体1,并作为锂电池的一个组成部分,放置在锂电池的顶部;如此,将集成电极本体1模块化;有利于锂电池的模块化的快速组装,具体的,只要在集成电极本体1的下部连接有电芯5,并在集成电极本体1的下部周围焊接壳体6,就可以将电芯5进行密封,组成一个锂电池,采用上述结构,在制造集成电极本体1时可以进行批量的模块化制造,连接密封壳体6时,只需要在壳体6周边焊接一圈;连接简单,节约了制造时间,提高了制造效率,提高了电池成品率,降低因为密封产生的报废率,适合批量生产。As shown in Figure 1, the positive electrode 2, the negative electrode 3 and the insulating layer 4 are integrated together to form an integrated electrode body 1, and as an integral part of the lithium battery, it is placed on the top of the lithium battery; thus, the integrated electrode body 1 Modularization; it is beneficial to the rapid assembly of the modularization of the lithium battery. Specifically, as long as the battery cell 5 is connected to the lower part of the integrated electrode body 1, and the casing 6 is welded around the lower part of the integrated electrode body 1, the battery can be assembled. The core 5 is sealed to form a lithium battery. With the above structure, batch modular manufacturing can be carried out when manufacturing the integrated electrode body 1. When connecting the sealed casing 6, only one circle of welding is required around the casing 6; the connection is simple, The manufacturing time is saved, the manufacturing efficiency is improved, the battery yield is improved, the scrap rate due to sealing is reduced, and it is suitable for mass production.
具体的,所述电极本体1的具体结构,如图1所示,所述正极电极2包括环形正极电极侧边21和中间凸型正极电极22;所述负极电极3呈环形,所述环形正极电极侧边21上方装设有负极电极3,所述环形正极电极侧边21和负极电极3之间装设有环形绝缘层4;所述中间凸型正极电极22的上表面高于负极电极3的上表面;所述环形正极电极侧边21的外径小于环形绝缘层4的外径,所述环形正极电极侧边21的外径大于环形绝缘层4的内径,所述环形绝缘层4的外径小于负极电极3的外径;所述负极电极3下方焊接固定有壳体6。Specifically, the specific structure of the electrode body 1, as shown in Figure 1, the positive electrode 2 includes a ring-shaped positive electrode side 21 and a central convex positive electrode 22; the negative electrode 3 is ring-shaped, and the ring-shaped positive electrode A negative electrode 3 is installed above the electrode side 21, and an annular insulating layer 4 is installed between the annular positive electrode side 21 and the negative electrode 3; the upper surface of the middle convex positive electrode 22 is higher than the negative electrode 3 The upper surface of the upper surface; the outer diameter of the annular positive electrode side 21 is less than the outer diameter of the annular insulating layer 4, the outer diameter of the annular positive electrode side 21 is greater than the inner diameter of the annular insulating layer 4, and the outer diameter of the annular insulating layer 4 The outer diameter is smaller than that of the negative electrode 3 ; a casing 6 is welded and fixed below the negative electrode 3 .
在其他实施例中,所述集成电极本体1装设在钢壳圆柱电池、钢壳方型电池和钢壳针型电池上。In other embodiments, the integrated electrode body 1 is installed on a steel-cased cylindrical battery, a steel-cased prismatic battery, and a steel-cased needle-shaped battery.
实施例二Embodiment two
请参考图3和图4,本发明实施例二提供了一种快速固化密封的集成电极结构。Please refer to FIG. 3 and FIG. 4 , Embodiment 2 of the present invention provides a fast-curing and sealed integrated electrode structure.
实施例二和实施例一基本一样,不同的是:为了降低成本,本实施例中的正极电极1采用冲压工艺进行生产,为了更好适应冲压工艺,所述正极电极1做出了一定的适应性改变;所述中间凸型正极电极22底部还设有冲压后形成的凹槽24;也可以一定程度降低正极电极1的重量,减少制造成本。Embodiment 2 is basically the same as Embodiment 1, except that in order to reduce costs, the positive electrode 1 in this embodiment is produced by a stamping process. In order to better adapt to the stamping process, the positive electrode 1 has made certain adaptations. change; the bottom of the middle convex positive electrode 22 is also provided with a groove 24 formed after punching; it can also reduce the weight of the positive electrode 1 to a certain extent and reduce the manufacturing cost.
如图3所示;所述环形绝缘层4一侧设有绝缘凸起41,所述绝缘凸起41一侧装设有负极电极3;进一步的,所述绝缘凸起41顶面与负极电极3顶面平齐;装设有绝缘凸起41可以挡住负极电极3向中间凸型正极电极22靠近,可以防止负极电极3与中间凸型正极电极22连接在一起,降低锂电池短路的发生,提高锂电池的安全性。As shown in Figure 3; one side of the annular insulating layer 4 is provided with an insulating protrusion 41, and one side of the insulating protrusion 41 is provided with a negative electrode 3; further, the top surface of the insulating protrusion 41 is connected to the negative electrode 3. The top surface is flush; an insulating protrusion 41 is installed to block the negative electrode 3 from approaching the central convex positive electrode 22, which can prevent the negative electrode 3 from being connected to the central convex positive electrode 22, and reduce the occurrence of lithium battery short circuit. Improve the safety of lithium batteries.
实施例三Embodiment three
请参考图5和图6,本发明实施例三提供了一种快速固化密封的集成电极结构。Referring to FIG. 5 and FIG. 6 , Embodiment 3 of the present invention provides a fast-curing and sealed integrated electrode structure.
实施例三和实施例一基本一样,不同的是:如图5所示;为了进一步降低成本,本实施例中的正极电极1采用冲压工艺进行生产,所述正极电极2为环形正极电极25;所述负极电极3覆盖在环形正极电极25上方,并且呈圆形;所述环形正极电极25和圆形负极电极3之间装设有环形绝缘层4;所述环形正极电极25的外径大于环形绝缘层4的外径,所述环形正极电极25的内径小于环形绝缘层4的内径,所述圆形负极电极3大于环形绝缘层4的内径;小于环形绝缘层4的外径。The third embodiment is basically the same as the first embodiment, except that as shown in Figure 5; in order to further reduce the cost, the positive electrode 1 in this embodiment is produced by a stamping process, and the positive electrode 2 is a ring-shaped positive electrode 25; The negative electrode 3 is covered above the annular positive electrode 25 and is circular; an annular insulating layer 4 is arranged between the annular positive electrode 25 and the circular negative electrode 3; the outer diameter of the annular positive electrode 25 is larger than The outer diameter of the annular insulating layer 4, the inner diameter of the annular positive electrode 25 is smaller than the inner diameter of the annular insulating layer 4, and the circular negative electrode 3 is greater than the inner diameter of the annular insulating layer 4; less than the outer diameter of the annular insulating layer 4.
如图6所示;所述环形正极电极25下方焊接固定有壳体6;从而所述壳体6也是锂电池的正极;进一步的,所述集成电极本体1和壳体6之间还装设有电芯5;所述电芯5一端装设有正极耳51,另一端装设有负极耳52,所述负极耳52与上方的负极电极3固定连接,所述正极耳51固定焊接在壳体6的底部。As shown in Figure 6; a housing 6 is welded and fixed below the annular positive electrode 25; thus the housing 6 is also the positive pole of the lithium battery; further, a device is installed between the integrated electrode body 1 and the housing 6 There is a battery cell 5; one end of the battery cell 5 is equipped with a positive pole ear 51, and the other end is equipped with a negative pole ear 52, the negative pole ear 52 is fixedly connected to the upper negative electrode 3, and the positive pole ear 51 is fixedly welded on the shell The bottom of body 6.
实施例四Embodiment four
本发明实施例四提供了一种制造如实施例一所述的一种快速固化密封的集成电极结构的方法,包括以下步骤。Embodiment 4 of the present invention provides a method for manufacturing a fast-curing sealed integrated electrode structure as described in Embodiment 1, including the following steps.
步骤S1;利用第一金属导体冲压或者一体成型制作出片状的正极电极1;利用第二金属导体冲压或者一体成型制作出片状的负极电极3。Step S1: using the first metal conductor to stamp or integrally form the sheet-shaped positive electrode 1; using the second metal conductor to stamp or integrally form the sheet-shaped negative electrode 3.
步骤S2;将负极电极3放置在正极电极2上方;并在负极电极3和正极电极2之间涂覆有绝缘层4。Step S2: place the negative electrode 3 on the positive electrode 2; and coat the insulating layer 4 between the negative electrode 3 and the positive electrode 2.
具体的,所述绝缘层4采用喷涂、点滴或者涂抹的方式涂覆在正极电极2和负极电极3之间。Specifically, the insulating layer 4 is coated between the positive electrode 2 and the negative electrode 3 by spraying, dripping or smearing.
进一步的,所述绝缘层4可以采用热固化材料或者光固化材料,使其在光照和加热的条件下,可以快速固化。Further, the insulating layer 4 can be made of heat-curable material or light-curable material, so that it can be cured quickly under the conditions of light and heat.
更进一步的,所述绝缘层4采用无影胶材料构件、密封胶材料构件、环氧树脂材料构件或者粘合剂材料构件。Furthermore, the insulating layer 4 is made of shadowless glue material, sealant material, epoxy resin material or adhesive material.
步骤S3;将正极电极2、负极电极3和绝缘层4一起放入到固化装置中将绝缘层4进行固化;得到集成电极本体1。Step S3: put the positive electrode 2, the negative electrode 3 and the insulating layer 4 into a curing device to cure the insulating layer 4; and obtain the integrated electrode body 1.
具体的,在正极电极2和负极电极3之间涂覆好绝缘层4后,将其整体放入内部装设有加热部件和紫外线发射部件的固化装置中进行快速固化;如此,所述固化后的绝缘层4、正极电极2和负极电极3一起组成集成电极本体1。Specifically, after the insulating layer 4 is coated between the positive electrode 2 and the negative electrode 3, it is put into a curing device equipped with a heating component and an ultraviolet emitting component as a whole for rapid curing; thus, after the curing The insulating layer 4, the positive electrode 2 and the negative electrode 3 together form an integrated electrode body 1.
进一步的,所述固化装置的内部可以容纳多件集成电极本体1,一次固化50至100件集成电极本体,可以大幅度降低成本,提高生产效率,更适合大批量生产。Further, the interior of the curing device can accommodate multiple integrated electrode bodies 1, and 50 to 100 integrated electrode bodies can be cured at one time, which can greatly reduce costs and improve production efficiency, and is more suitable for mass production.
步骤S4;所述集成电极本体1下方装设有电芯5;所述电芯5上的正极耳51与正极电极2焊接固定连接,所述电芯5上的负极耳52与负极电极3焊接固定连接。Step S4: An electric core 5 is installed under the integrated electrode body 1; the positive ear 51 on the electric core 5 is welded and fixedly connected to the positive electrode 2, and the negative ear 52 on the electric core 5 is welded to the negative electrode 3 Fixed connection.
具体的,由于集成电极本体1中的正极电极2与负极电极3相互遮挡,不方便同时将正极耳51与负极耳52都分别与装设在上方的正极电极2与负极电极3相连接;可以将正极耳51或者负极耳52与壳体6的下端连接,这样可以更方便进行连接,满足连接的需要。Specifically, since the positive electrode 2 and the negative electrode 3 in the integrated electrode body 1 block each other, it is inconvenient to simultaneously connect the positive electrode ear 51 and the negative electrode ear 52 to the positive electrode 2 and the negative electrode 3 installed above; Connect the positive tab 51 or the negative tab 52 to the lower end of the casing 6, so that the connection can be made more conveniently and the connection needs can be met.
步骤S5;所述集成电极本体1下方焊接固定有壳体6;将电芯5进行密封。Step S5: The casing 6 is welded and fixed under the integrated electrode body 1; the battery cell 5 is sealed.
上述实施例为本发明较佳的实施方式,但本发明的实施方式并不受上述实施例的限制,其他的任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化,均应为等效的置换方式,都包含在本发明的保护范围之内。The above-mentioned embodiment is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above-mentioned embodiment, and any other changes, modifications, substitutions, combinations, Simplifications should be equivalent replacement methods, and all are included in the protection scope of the present invention.
Claims (10)
- 一种快速固化密封的集成电极结构,其特征在于,包括集成电极本体(1),所述集成电极本体(1)包括由第一金属导体制成的正极电极(2)和由第二金属导体制成的负极电极(3),所述正极电极(2)上方装设有负极电极(3),所述正极电极(2)和负极电极(3)之间涂覆有绝缘层(4);所述绝缘层(4)采用固化装置进行快速固化;所述固化后的绝缘层(4)、正极电极(2)和负极电极(3)一起组成集成电极本体(1);所述集成电极本体(1)下方焊接固定有壳体(6);所述集成电极本体(1)和壳体(6)之间装设有电芯(5);所述电芯(5)一端装设有正极耳(51),另一端装设有负极耳(52),所述正极电极(2)与正极耳(51)固定连接,所述负极电极(3)与负极耳(52)固定连接。A rapidly curing and sealed integrated electrode structure, characterized by comprising an integrated electrode body (1), the integrated electrode body (1) comprising a positive electrode (2) made of a first metal conductor and a positive electrode (2) made of a second metal conductor The prepared negative electrode (3), the negative electrode (3) is installed above the positive electrode (2), and an insulating layer (4) is coated between the positive electrode (2) and the negative electrode (3); The insulating layer (4) is rapidly cured by a curing device; the cured insulating layer (4), the positive electrode (2) and the negative electrode (3) together form an integrated electrode body (1); the integrated electrode body (1) The casing (6) is welded and fixed at the bottom; the battery cell (5) is installed between the integrated electrode body (1) and the casing (6); the positive electrode is installed at one end of the battery cell (5) The other end of the ear (51) is equipped with a negative ear (52), the positive electrode (2) is fixedly connected to the positive ear (51), and the negative electrode (3) is fixedly connected to the negative ear (52).
- 根据权利要求1所述的一种快速固化密封的集成电极结构,其特征在于,所述绝缘层(4)采用无影胶材料构件、密封胶材料构件、环氧树脂材料构件或者粘合剂材料构件;采用喷涂、点滴或者涂抹的方式涂覆在正极电极(2)和负极电极(3)之间。The fast-curing and sealed integrated electrode structure according to claim 1, characterized in that, the insulating layer (4) is made of a shadowless adhesive material member, a sealant material member, an epoxy resin material member or an adhesive material A component; coated between the positive electrode (2) and the negative electrode (3) by means of spraying, dripping or smearing.
- 根据权利要求2所述的一种快速固化密封的集成电极结构,其特征在于,所述固化装置内部装设有加热部件和紫外线发射部件;将绝缘层(4)快速固化。The fast-curing and sealed integrated electrode structure according to claim 2, characterized in that a heating component and an ultraviolet emitting component are installed inside the curing device; and the insulating layer (4) is quickly cured.
- 根据权利要求3所述的一种快速固化密封的集成电极结构,其特征在于,所述固化装置内部容纳50至100件集成电极本体(1)。The fast-curing and sealed integrated electrode structure according to claim 3, characterized in that 50 to 100 integrated electrode bodies (1) are accommodated inside the curing device.
- 根据权利要求1所述的一种快速固化密封的集成电极结构,其特征在于,所述集成电极本体(1)装设在钢壳圆柱电池、钢壳方型电池和钢壳针型电池上。The fast-curing and sealed integrated electrode structure according to claim 1, characterized in that the integrated electrode body (1) is installed on a steel-cased cylindrical battery, a steel-cased square battery and a steel-cased needle-shaped battery.
- 根据权利要求1所述的一种快速固化密封的集成电极结构,其特征在于,所述集成电极本体(1)与壳体(6)采用外部周边焊接的方式进行连接;所述电极本体(1)与壳体(6)之间形成焊缝(7)。A fast-curing and sealed integrated electrode structure according to claim 1, characterized in that, the integrated electrode body (1) is connected to the shell (6) by means of external peripheral welding; the electrode body (1 ) and the shell (6) to form a weld (7).
- 根据权利要求1所述的一种快速固化密封的集成电极结构,其特征在于,所述正极电极(2)包括环形正极电极侧边(21)和中间凸型正极电极(22);所述负极电极(3)呈环形,所述环形正极电极侧边(21)上方装设有负极电极(3),所述环形正极电极侧边(21)和负极电极(3)之间装设有环形绝缘层(4);所述中间凸型正极电极(22)的上表面高于负极电极(3)的上表面;所述环形正极电极侧边(21)的外径小于环形绝缘层(4)的外径,所述环形正极电极侧边(21)的外径大于环形绝缘层(4)的内径,所述环形绝缘层(4)的外径小于负极电极(3)的外径;所述负极电极(3)下方焊接固定有壳体(6)。A fast-curing and sealed integrated electrode structure according to claim 1, characterized in that, the positive electrode (2) includes a ring-shaped positive electrode side (21) and a convex positive electrode (22) in the middle; the negative electrode The electrode (3) is ring-shaped, and a negative electrode (3) is installed above the ring-shaped positive electrode side (21), and a ring-shaped insulation is installed between the ring-shaped positive electrode side (21) and the negative electrode (3). layer (4); the upper surface of the middle convex positive electrode (22) is higher than the upper surface of the negative electrode (3); the outer diameter of the annular positive electrode side (21) is smaller than that of the annular insulating layer (4) Outer diameter, the outer diameter of the annular positive electrode side (21) is larger than the inner diameter of the annular insulating layer (4), and the outer diameter of the annular insulating layer (4) is smaller than the outer diameter of the negative electrode (3); the negative electrode A casing (6) is welded and fixed under the electrode (3).
- 根据权利要求7所述的一种快速固化密封的集成电极结构,其特征在于,所述中间凸型正极电极(22)底部还设有凹槽(24);所述环形绝缘层(4)一侧设有绝缘凸起(41),所述绝缘凸起(41)一侧装设有负极电极(3);所述绝缘凸起(41)顶面与负极电极(3)顶面平齐。A fast-curing and sealed integrated electrode structure according to claim 7, characterized in that, a groove (24) is provided at the bottom of the middle convex positive electrode (22); the annular insulating layer (4) is a An insulating protrusion (41) is provided on one side, and a negative electrode (3) is installed on one side of the insulating protrusion (41); the top surface of the insulating protrusion (41) is flush with the top surface of the negative electrode (3).
- 根据权利要求1所述的一种快速固化密封的集成电极结构,其特征在于,所述正极电极(2)为环形正极电极(25);所述负极电极(3)呈圆形,所述环形正极电极(25)上方装设有圆形负极电极(3);所述环形正极电极(25)和圆形负极电极(3)之间装设有环形绝缘层(4);所述环形正极电极(25)的外径大于环形绝缘层(4)的外径,所述环形正极电极(25)的内径小于环形绝缘层(4)的内径,所述圆形负极电极(3)大于环形绝缘层(4)的内径;小于环形绝缘层(4)的外径,所述环形正极电极(25)下方焊接固定有壳体(6)。The fast-curing and sealed integrated electrode structure according to claim 1, characterized in that, the positive electrode (2) is an annular positive electrode (25); the negative electrode (3) is circular, and the annular A circular negative electrode (3) is installed above the positive electrode (25); an annular insulating layer (4) is installed between the annular positive electrode (25) and the circular negative electrode (3); the annular positive electrode The outer diameter of (25) is larger than the outer diameter of the annular insulating layer (4), the inner diameter of the annular positive electrode (25) is smaller than the inner diameter of the annular insulating layer (4), and the circular negative electrode (3) is larger than the annular insulating layer The inner diameter of (4) is smaller than the outer diameter of the annular insulating layer (4), and the casing (6) is welded and fixed under the annular positive electrode (25).
- 一种制造如权利要求1至9任意一项所述的一种快速固化密封的集成电极结构的方法,其特征在于,包括以下步骤:A method for manufacturing a fast-curing sealed integrated electrode structure according to any one of claims 1 to 9, characterized in that it comprises the following steps:步骤S1;利用第一金属导体冲压制作出片状的正极电极(1);利用第二金属导体冲压制作出片状的负极电极(3);Step S1: stamping a sheet-shaped positive electrode (1) using the first metal conductor; stamping and pressing a sheet-shaped negative electrode (3) using the second metal conductor;步骤S2;将负极电极(3)放置在正极电极(2)上方;并在负极电极(3)和正极电极(2)之间涂覆有绝缘层(4);Step S2; placing the negative electrode (3) above the positive electrode (2); and coating the insulating layer (4) between the negative electrode (3) and the positive electrode (2);步骤S3;将正极电极(2)、负极电极(3)和绝缘层(4)一起放入到固化装置中将绝缘层(4)进行固化;得到集成电极本体(1);Step S3: put the positive electrode (2), the negative electrode (3) and the insulating layer (4) into the curing device to cure the insulating layer (4); obtain the integrated electrode body (1);步骤S4;所述集成电极本体(1)下方装设有电芯(5);所述电芯(5)上的正极耳(51)与正极电极(2)焊接固定连接,所述电芯(5)上的负极耳(52)与负极电极(3)焊接固定连接;Step S4: a cell (5) is installed under the integrated electrode body (1); the positive tab (51) on the cell (5) is welded and fixedly connected to the positive electrode (2), and the cell ( 5) The negative electrode ear (52) on the top is welded and fixedly connected with the negative electrode (3);步骤S5;所述集成电极本体(1)下方焊接固定有壳体(6);将电芯(5)进行密封。Step S5: The casing (6) is welded and fixed under the integrated electrode body (1); the cell (5) is sealed.
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