CN114400343B - A portable button-type electrochemical energy storage device disassembly method and device - Google Patents
A portable button-type electrochemical energy storage device disassembly method and device Download PDFInfo
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- CN114400343B CN114400343B CN202210065294.0A CN202210065294A CN114400343B CN 114400343 B CN114400343 B CN 114400343B CN 202210065294 A CN202210065294 A CN 202210065294A CN 114400343 B CN114400343 B CN 114400343B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012983 electrochemical energy storage Methods 0.000 title claims abstract description 20
- 238000003825 pressing Methods 0.000 claims description 68
- 230000009471 action Effects 0.000 claims description 23
- 239000010963 304 stainless steel Substances 0.000 claims description 6
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 12
- 230000007704 transition Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000011257 shell material Substances 0.000 description 66
- 238000010586 diagram Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 9
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910001105 martensitic stainless steel Inorganic materials 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 241000773945 Trimusculidae Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
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- 238000003912 environmental pollution Methods 0.000 description 1
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- 230000002427 irreversible effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/52—Reclaiming serviceable parts of waste cells or batteries, e.g. recycling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
本发明涉及储能器件拆解领域，特别涉及一种便携式纽扣式电化学储能器件拆解方法及装置。本发明拆解装置包括“[”型支架、动模块、定模块和旋转手柄，只需要通过手套箱小过渡仓即可实现此拆解装置在手套箱内外的方便转移。在进行拆解作业时，纽扣式储能器件置于可升降施压柱与承压柱之间，通过扭动旋转手柄使传动螺杆转动，向下加压进而带动可升降施压柱将纽扣电池负极及内部的电极片、垫片和弹片等压入下外圆环内部，而正极壳则被卡于下外圆环的顶部，从而实现纽扣式储能器件的拆解。本发明能够低成本、便捷地完成拆解作业，拆解精确度好，整个拆解过程可实现电极片的无损、高效取出，省时省力，有效提高储能器件失效分析过程中的拆解效率。
The present invention relates to the field of disassembly of energy storage devices, and in particular to a portable button-type electrochemical energy storage device disassembly method and device. The disassembly device of the present invention includes a "["-shaped bracket, a moving module, a fixed module and a rotating handle, and the disassembly device can be conveniently transferred inside and outside the glove box only through a small transition compartment of the glove box. When performing the disassembly operation, the button-type energy storage device is placed between a liftable pressure column and a pressure-bearing column. By twisting the rotating handle to rotate the transmission screw, the downward pressure is applied to drive the liftable pressure column to press the negative electrode of the button battery and the internal electrode sheet, gasket and shrapnel into the lower outer ring, while the positive electrode shell is stuck on the top of the lower outer ring, thereby realizing the disassembly of the button-type energy storage device. The present invention can complete the disassembly operation at low cost and conveniently, with good disassembly accuracy. The entire disassembly process can realize the lossless and efficient removal of the electrode sheet, saving time and effort, and effectively improving the disassembly efficiency in the failure analysis process of the energy storage device.
Description
Technical Field
The invention relates to the field of disassembly of energy storage devices, in particular to a method and a device for disassembling a portable button-type electrochemical energy storage device.
Background
In the great background of energy crisis and environmental pollution, electrochemical devices represented by lithium ion batteries and supercapacitors are the main energy storage devices developed in the 21 st century. However, the electrochemical energy storage device may fail during production, transportation, use or long-term placement, the light weight may affect the performance and reliability of the device, and the heavy weight may cause the overall energy storage assembly to stop working or cause safety problems. Such failure phenomena include capacity fade (water jump), poor consistency, easy self-discharge, high and low temperature performance fade, short cycle life, large internal resistance, abnormal cell pack voltage, gas generation, liquid leakage, short circuit, deformation, thermal runaway, and the like. The method for diagnosing the failure of the electrochemical energy storage device accurately and exploring the failure mechanism is a main task of failure analysis of the electrochemical energy storage device, and has profound significance for performance improvement and technical development of the lithium battery.
Currently, button-type energy storage devices are important means for performing preliminary electrochemical performance tests and evaluations of new materials and new process products in laboratories for performance detection of existing materials. The button type energy storage device has the advantages of less required materials, short process flow, capability of accurately measuring the performance of a new material, and great significance for development and preparation of the material and full cell design and application. However, once the button housings represented by CR2032, CR2025, CR2016, etc. are packaged, they are difficult to disassemble, and if they are forcibly disassembled by pliers, etc., they cause permanent damage such as tearing of the electrode sheet and dropping of the material, and thus the failure mechanism thereof cannot be accurately diagnosed and studied.
Disclosure of Invention
The invention aims to overcome the defects of disassembly of the button shell, and provides a method and a device for disassembling a small, light and portable button-type electrochemical energy storage device, which can realize efficient separation of an anode and a cathode of the button shell and nondestructive extraction of an electrode plate.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
A portable button type electrochemical energy storage device disassembling device comprises a bracket, a movable module, a fixed module and a rotary handle;
the movable module consists of a hollow cylinder and a pressurizing column;
One end face of the hollow cylinder is a concave conical inclined surface, at least three trapezoid sliding grooves are formed in the inner wall of the hollow cylinder, and at least three guide rods are arranged on the concave conical inclined surface; the pressing column is arranged in the inner cavity of the hollow cylinder, and the trapezoidal sliding blocks are matched with the trapezoidal sliding grooves, so that the pressing column can slide up and down in the hollow cylinder;
The fixed die block consists of a bearing post, a cylinder body and a spring ring, wherein one end face of the cylinder body is a convex conical inclined plane which is matched with the concave conical inclined plane of the hollow cylinder, and at least three guide holes are formed in the convex conical inclined plane, the positions and the number of the guide holes are matched with those of the guide rods;
the fixed die block is arranged on the lower plate surface of the [ -shaped bracket, the guide rod of the movable die block penetrates through the guide hole of the fixed die block to enable the movable die block to be arranged above the fixed die block, the upper plate surface of the [ -shaped bracket is provided with a screw hole, the top end of the compression column is provided with a screw rod, and the screw rod penetrates through the screw hole of the upper plate surface of the [ -shaped bracket and is connected with the rotary handle.
Further, at least three trapezoidal grooves are formed in the pressurizing column, and the pressurizing column is connected with the trapezoidal sliding block through an inner hexagon screw or a fixed connecting rod, so that the trapezoidal sliding block is fastened in the trapezoidal grooves. The invention is provided with at least three trapezoid grooves, so that the pressing column can be well ensured to vertically lift along the axial direction of the central shaft without deviating from the center, meanwhile, the trapezoid sliding block is embedded into the trapezoid groove on the pressing column and is fastened on the pressing column through the inner hexagon screw or the fixed connecting rod, the detachable modularized design is convenient for the installation of equipment, and the big end of the trapezoid sliding block is embedded into the hollow cylinder, so that the positioning precision is ensured.
Further, the included angle theta between the concave conical inclined surface of the hollow cylinder and the guide rod is 30-35 degrees. Through designing the contained angle theta of the concave conical inclined surface of the hollow cylinder and the guide rod to be 30-35 degrees, the larger pressure is ensured in the downward axial direction in the pressing process, the gravity action of the hollow cylinder can be utilized to enable the concave conical inclined surface of the hollow cylinder to be closely attached to the convex conical inclined surface of the cylinder body, and under the action of the designed guide rod, the center alignment of the pressing column and the bearing column as well as the center alignment of the hollow cylinder and the cylinder body can be ensured.
Further, the lower end part of the guide rod extending out of the concave conical inclined end surface of the hollow cylinder is conical, the diameter of the guide rod, which is close to the top end surface of the hollow cylinder, is larger than the diameter of the guide rod extending out of the concave conical inclined end surface of the hollow cylinder, and the guide rod is fixed on the hollow cylinder in an interference fit manner through a guide rod mounting hole. The guide rod is an important mechanism for ensuring that the centers of the pressurizing column, the bearing column and the hollow cylinder are aligned before the concave conical inclined surface of the hollow cylinder is not attached to the convex conical inclined surface of the cylinder body, the lower end of the guide rod is in conical design, the guide effect of the conical surface can be effectively utilized to enable the guide tube to be smoothly and accurately inserted into the guide rod mounting hole, the upper end of the guide rod is thick, the lower end of the guide rod is thin in diameter, the guide rod can be in an interference fit state in the guide rod mounting hole, the guide rod cannot slide out of the guide rod mounting hole in the process of mutual approaching of the hollow cylinder and the cylinder body under the pressure effect, the guide rod is more and more firmly mounted, the structure is simplified, and a good expected effect is obtained.
Furthermore, the lengths of the trapezoid grooves and the trapezoid sliding blocks are larger than 1/3 of the height of the pressing column and smaller than half of the height of the pressing column, so that the bottom of the pressing column is ensured to be a complete column, and the pressing column can be lifted along the axial direction under the action of the trapezoid sliding blocks. The length of the trapezoid sliding groove is 2-5 times longer than that of the trapezoid sliding block, and the thickness of the positive shell of the button cell is the same. The bottom of the trapezoid sliding block is embedded into the trapezoid sliding groove and can move up and down along the trapezoid sliding groove, meanwhile, in order to achieve the function of disassembling the button device, the pressurizing block needs to be guaranteed to move down sufficiently under the pressurizing condition and at least can reach the position parallel to the top end face of the convex cone inclined surface of the cylinder body, and therefore the thickness of the positive shell of the button cell needs to be 2-5 times longer than that of the trapezoid sliding block.
Further, the diameter of the pressurizing column is 1-2.5mm larger than the outer diameter of the button cell negative electrode shell and smaller than the inner diameter of the button cell positive electrode shell. The invention aims to detach a button type energy storage device more completely, in order to ensure the detachment integrity, the diameter of a pressing column cannot be too small, if the diameter is too small, the pressure applied to the positive electrode shell is too large, so that the central position of the device shell is stressed only, at the moment, the required torque is large, the shell is torn due to the central local stress, the detachment integrity is difficult to ensure, and if the diameter is too large, the diameter of the pressing column is larger than that of a barrel and cannot enter the barrel, the positive electrode shell and the negative electrode shell of the device cannot be completely separated, and meanwhile, the top end of a convex cone inclined plane of the barrel is stressed and curled under high pressure, so that the whole device is damaged.
Further, the diameter of the pressure-bearing column is +/-0.5 mm different from the outer diameter of the negative electrode shell of the button cell. The bearing column plays a role in supporting the cathode shell in the disassembling process, and the bearing column ejects the cathode shell out of the cylinder under the action of the spring after the pressure is released after the disassembly is completed. Thus, the diameter of the pressure-bearing column should be similar to the outer diameter of the negative electrode shell of the button cell. If the diameter of the cylinder is too small, the support is not beneficial to placing and supporting the button device, so that the button device is balanced, and if the diameter of the cylinder is too large, even the diameter of the cylinder is larger than the outer diameter of the positive electrode of the button device, the dismantling function cannot be realized.
Furthermore, the port diameter of the convex conical inclined surface of the cylinder is larger than the outer diameter of the negative electrode shell of the button cell and smaller than the sum of the outer diameter of the negative electrode shell of the button cell and the diameter of the negative electrode sealing ring of the battery shell, so that the convex conical inclined surface end surface of the cylinder is just embedded between the positive electrode shell and the negative electrode shell of the button device, meanwhile, the convex conical inclined surface design of the cylinder can convert the pressure in the vertical direction into the horizontal acting force perpendicular to the axial direction of the shell of the device by utilizing the inclined surface, and the lower edge of the positive electrode shell of the button device is opened in an arc-shaped sealing manner by the strong force under the action of the acting force and is separated from the negative electrode shell.
Further, the [ -shaped support, the rotating handle, the screw rod, the trapezoid groove, the guide rod, the pressurizing column, the trapezoid sliding block, the hollow cylinder, the trapezoid sliding groove, the guide rod mounting hole, the pressure bearing column, the guide hole, the cylinder body and the spring ring are made of metal materials with hardness larger than or equal to 304 stainless steel. At present, 304 stainless steel is a main-stream button European device shell material, and in order to realize the opening of a back-buckling sealing structure of the material, the hardness of the material is required to be larger than or equal to that of 304 stainless steel, otherwise, the disassembly cannot be realized.
Further, the pressurizing column, the bearing column and the cylinder are made of martensitic stainless steel. The martensitic stainless steel has a hardness far greater than that of the 304 stainless steel, so that martensitic stainless steel having a higher material quality can be preferable as the material of the pressing column, the pressure-receiving column and the cylinder.
The disassembly method of the portable button type electrochemical energy storage device specifically comprises the following steps:
Step 1, placing a button cell to be disassembled between a pressurizing column and a pressure bearing column, wherein the negative electrode of the button cell faces the pressure bearing column of the fixed module;
Step 2, inserting a guide rod into the guide hole, ensuring that the centers of the pressurizing column and the bearing column are opposite, and enabling the positive bending edge of the button cell to be just overlapped with the top edge of the outwards-protruding conical inclined surface of the cylinder of the fixed module under the action of the outwards-protruding conical inclined surfaces of the hollow cylinder and the cylinder;
Step 3, twisting the rotary handle in the clockwise direction, gradually pressing the pressing column to the bearing column, and enabling the trapezoidal sliding block to slide up and down along the trapezoidal sliding groove;
Step 4, along with the continuous descending of the pressing column, the pressing column presses the negative electrode shell of the button cell and the electrode plate, the elastic sheet and the pressing sheet in the negative electrode shell into the barrel, the positive electrode shell of the button cell is clamped on the inner edge of the inclined plane of the barrel due to the outer edge of the positive electrode shell, is torn under the action of the inner edge of the conical inclined plane of the barrel, and is separated from the negative electrode shell and the electrode plate, the elastic sheet and the pressing sheet in the negative electrode shell, so that the non-destructive disassembly of the electrode plate in the button cell is realized;
And 5, twisting the rotary handle in the anticlockwise direction, lifting the movable module, the guide rod, the pressing column and the hollow cylinder, separating the pressing column, the button battery and the pressing column from each other, and ejecting the pressing column and the disassembled button battery to be higher than the height of the cylinder under the action of the spring ring so that the disassembled button battery is removed.
Compared with the prior art, the invention has the following beneficial effects:
The invention has novel and unique structure, small volume, convenient operation, convenient carrying and transferring, convenient moving out or moving in from the glove box, precise structural design, precise corresponding of the pressing column and the center of the bearing column, accurate positioning, avoiding tearing and damaging the electrode plate in the process of disassembling the shell, combined pressing mode of the rotating handle and the screw rod, operation force of less than 8kg, attractive appearance, simple and convenient maintenance, firm structural design of the steel structure and the support reinforcing rib, and stable and safe use.
Drawings
Fig. 1 is a three-dimensional schematic view of an assembled structure of the present invention.
Fig. 2 is a side view of the assembled structure of the present invention.
Fig. 3 is a schematic view of the three-dimensional structure of the moving module and the fixed module arranged right below the moving module.
FIG. 4 shows a movable module according to the present invention schematic three-dimensional structure.
Fig. 5 is a schematic view showing a three-dimensional structure of the movable module according to the present invention.
FIG. 6 shows a movable module according to the present invention a three-dimensional structure perspective view.
FIG. 7 is a 45 degree top perspective view of a three-dimensional structure of a stationary module of the present invention.
FIG. 8 is a 135 degree bottom perspective view of a three-dimensional structure of a stationary mold block of the present invention.
FIG. 9 is a schematic view and cross-sectional orientation of the moving and fixed mold block assembly structure of the present invention.
FIG. 10 is a cross-sectional view of A-A of the movable and stationary modules of the present invention.
FIG. 11 is a B-B cross-sectional view of the movable and stationary modules of the present invention.
FIG. 12 is a D-D sectional view of the movable module and the fixed module of the present invention.
FIG. 13 is an E-E cross-sectional view of the movable and stationary modules of the present invention.
Fig. 14 is an assembly view of the disassembling device and the button cell of the present invention.
Fig. 15 is a diagram showing a comparison of the disassembly device of the present invention with the disassembly of the button-type energy storage device with the pliers.
Detailed Description
The following examples are given by taking the technical scheme of the invention as a premise, and detailed implementation modes and specific operation processes are given, but the protection scope of the patent of the invention is not limited, and all technical schemes obtained by adopting equivalent substitution or equivalent transformation are within the protection scope of the invention.
A portable button type electrochemical energy storage device disassembling device comprises a [ (shaped) bracket 1, a movable module 2, a fixed module 3 and a rotary handle 4;
the movable module 2 consists of a hollow cylinder 206 and a pressure applying column 204;
The pressing column 204 is a cylinder, at least three trapezoidal sliding blocks 205 are arranged on the outer wall of the pressing column 204, the trapezoidal sliding blocks 205 are matched with the trapezoidal sliding grooves 207, the pressing column 204 is arranged in the inner cavity of the hollow cylinder 206, and the trapezoidal sliding blocks 205 are matched with the trapezoidal sliding grooves 207, so that the pressing column 204 slides up and down in the hollow cylinder 206;
the fixed die block 3 consists of a bearing post 301, a cylinder 303 and a spring ring 304, wherein one end surface of the cylinder 303 is a convex conical inclined surface which is matched with the concave conical inclined surface of the hollow cylinder 206, and at least three guide holes 302 are formed in the convex conical inclined surface, the positions and the number of the guide holes 302 are matched with those of the guide rods 203;
The fixed die block 3 is arranged on the lower plate surface of the [ -shaped bracket 1, the guide rod 203 of the movable die block 2 passes through the guide hole 302 of the fixed die block 3 to enable the movable die block 2 to be installed above the fixed die block 3, the upper plate surface of the [ -shaped bracket 1 is provided with a screw hole 106, the top end of the pressurizing column 204 is provided with a screw 201, and the screw 201 passes through the screw hole 106 of the upper plate surface of the [ -shaped bracket 1 and is connected with the rotary handle 4.
Further, at least three trapezoidal grooves 202 are provided on the pressurizing column 204, and the pressurizing column 204 is connected with the trapezoidal slider 205 through socket head cap screws or fixed connection rods, so that the trapezoidal slider 205 is fastened in the trapezoidal grooves 202.
Further, the included angle θ between the concave tapered slope of the hollow cylinder 206 and the guide rod 203 is 30-35 °.
Further, the lower end portion of the guide rod 203 extending out of the concave tapered inclined end surface of the hollow cylinder 206 is tapered, the diameter of the guide rod 203 near the top end surface of the hollow cylinder 206 is larger than the diameter of the guide rod 203 extending out of the concave tapered inclined end surface of the hollow cylinder 206, and the guide rod 203 is fixed on the hollow cylinder 206 in an interference fit manner through the guide rod mounting hole 208.
Further, the lengths of the trapezoid groove 202 and the trapezoid slide block 205 are larger than 1/3 of the height of the pressing column 204 and smaller than half of the height of the pressing column 204, and the length of the trapezoid slide groove 207 is 2-5 times longer than the length of the trapezoid slide block 205.
Further, the diameter of the pressing column 204 is 1-2.5mm larger than the outer diameter of the button cell negative electrode case 403 and smaller than the inner diameter of the button cell positive electrode case 401.
Further, the diameter of the pressure-bearing post 301 is + -0.5 mm different from the outer diameter of the button cell negative electrode case 403.
Further, the diameter of the end opening of the convex conical inclined surface of the cylinder 303 is larger than the outer diameter of the button cell negative electrode shell 403 and smaller than the sum of the outer diameter of the button cell negative electrode shell 403 and the diameter of the battery shell negative electrode sealing ring 402.
Further, the [ -shaped bracket 1, the rotary handle 4, the screw 201, the trapezoidal groove 202, the guide rod 203, the pressure applying column 204, the trapezoidal sliding block 205, the hollow cylinder 206, the trapezoidal sliding groove 207, the guide rod mounting hole 208, the pressure bearing column 301, the guide hole 302, the cylinder 303 and the spring ring 304 are made of metal materials with hardness greater than or equal to 304 stainless steel.
Further, the pressurizing column 204, the pressure receiving column 301 and the cylinder 303 are made of martensitic stainless steel.
The disassembly method of the portable button type electrochemical energy storage device specifically comprises the following steps:
step 1, placing a button cell to be disassembled between a pressurizing column 204 and a pressure-bearing column 301, wherein the negative electrode of the button cell faces the pressure-bearing column 301 of the fixed module 3;
step 2, inserting a guide rod 203 into a guide hole 302 to ensure that the centers of the pressurizing column 204 and the pressure bearing column 301 are opposite, and under the action of the hollow cylinder 206 and the outward protruding conical inclined surface of the cylinder 303, the positive bending edge of the button cell is just overlapped with the top edge of the outward protruding conical inclined surface of the cylinder 303 of the fixed module 3;
step 3, twisting the rotary handle 4 clockwise, gradually pressing the pressing column 204 to the bearing column 301, and sliding the trapezoid slide block 205 up and down along the trapezoid chute 207, wherein as the pressing column 204 moves down, the bearing column 301 is retracted into the cylinder 303, the spring ring 304 is compressed, and the height of the cylinder 303 is unchanged;
Step 4, as the pressurizing column 204 continuously descends, the pressurizing column 204 presses the negative electrode shell of the button cell and the electrode plate, the elastic sheet and the pressing sheet in the negative electrode shell into the cylinder 303, and the positive electrode shell of the button cell is clamped on the inner edge of the inclined plane of the cylinder 303 due to the outer edge of the positive electrode shell, is torn under the action of the inner edge of the outwards protruding conical inclined plane of the cylinder 303 and is separated from the negative electrode shell and the electrode plate, the elastic sheet and the pressing sheet in the negative electrode shell, so that the nondestructive disassembly of the electrode plate in the button cell is realized;
step 5, twisting the rotary handle 4 in the anticlockwise direction, lifting the movable module 2, the guide rod 203, the pressing column 204 and the hollow cylinder 206, separating the pressing column 204, the button cell and the pressure bearing column 301 from each other, and ejecting the pressure bearing column 301 and the disassembled button cell to be higher than the cylinder 303 under the action of the spring ring 304, so that the disassembled button cell is removed.
In addition, the negative electrode shell and the electrode plate, the elastic sheet and the pressing sheet inside the negative electrode shell are protected in the negative electrode shell and cannot be damaged by tearing or other external forces, so that the negative electrode shell can be completely reserved.
Example 1:
According to the figures 1-2, the movable module 2 and the fixed module 3 are mounted on a bracket 1 of a 'type', and assembled. The assembled device was transferred into a glove box through a small transition bin of the glove box. The CR2032 type button lithium ion battery to be disassembled is placed between the lifting pressurizing column 204 of the movable module 2 and the vertically sliding pressure bearing column 301 of the fixed module 3, wherein the negative electrode of the CR2032 type button battery faces the vertically sliding pressure bearing column 301 of the fixed module 3, the guide rod 203 is inserted into the guide hole 302 to ensure that the centers of the pressurizing column 204 and the pressure bearing column 301 are opposite, and meanwhile, under the action of parallel inclined planes of the hollow cylinder 206 and the cylinder 303, the positive electrode bending edge of the button battery is exactly overlapped with the inclined plane top edge of the cylinder 303 of the fixed module 3. The rotary handle 4 is twisted clockwise, the pressing column 204 is gradually pressed against the vertically slidable pressing column 301, in the process, the trapezoidal sliding block 205 connected to the trapezoidal groove 202 on the pressing column through the connecting rod or the inner hexagon screw slides up and down along the trapezoidal sliding groove 207 on the barrel, the pressing column 301 is retracted into the barrel 303 along with the downward movement of the pressing column 204, the spring ring 304 is compressed, the height of the barrel 303 is unchanged, the pressing column 204 presses the negative electrode shell of the CR2032 type button battery and electrode plates, shrapnel, tabletting and the like in the negative electrode shell into the barrel 303 (when the pressing depth is greater than the thickness of the button battery), and the positive electrode shell of the 2032 type button battery is blocked on the inner edge of the inclined surface of the barrel 303 along with the downward movement, so that the outer edge of the positive electrode shell is torn off under the action of the inner edge of the inclined surface of the barrel 303, and is separated from the negative electrode plates, shrapnel, tabletting and the like in the negative electrode plates, the buckling sheets, the tabletting and the like in the negative electrode plates and the negative electrode plates are separated, so that the negative electrode plates in the button battery can be detached. Then, the rotary handle 103 is twisted anticlockwise, under the action of the screw 201, the movable module 2, the guide rod 203, the pressing column 204 and the hollow cylinder 206 attached to the movable module are lifted, the pressing column 204, the button cell and the pressing column 301 are separated, the pressing column 301 capable of sliding vertically and the CR2032 type button cell after disassembly are ejected out and higher than the cylinder 303 under the action of the spring ring 304, and the button cell after disassembly can be easily removed.
And the shell appearance diagram (diagram) and the electrode slice microscopic electron microscope diagram (diagram) of the button type energy storage device after disassembly are used for representing the disassembly effect of the button type energy storage device.
Example 2:
According to the figures 1-2, the movable module 2 and the fixed module 3 are mounted on a bracket 1 of a 'type', and assembled. The CR2016 type button type super capacitor to be disassembled is placed between the pressurizing column 204 of the movable module 2 and the vertically sliding pressure bearing column 301 of the fixed module 3, wherein the negative electrode of the CR2016 type button super capacitor faces the vertically sliding pressure bearing column 301 of the fixed module 3, the guide rod 203 is inserted into the guide hole 302 to ensure that the centers of the pressurizing column 204 and the pressure bearing column 301 are opposite, and meanwhile, under the action of parallel inclined surfaces of the hollow cylinder 206 and the cylinder 303, the positive electrode bending edge of the CR2016 type button super capacitor is exactly overlapped with the inclined surface top edge of the cylinder 303 of the fixed module 3. The rotary handle 4 is twisted clockwise, the pressurizing column 204 is gradually pressed to the vertically slidable pressure-bearing column 301, in the process, the trapezoidal sliding block 205 connected to the trapezoidal groove 202 on the pressurizing column through the connecting rod or the inner hexagon screw slides up and down along the trapezoidal sliding groove 207 on the cylinder, the pressure-bearing column 301 is retracted into the cylinder 303 along with the downward movement of the pressurizing column 204, the spring ring 304 is compressed, the height of the cylinder 303 is unchanged, the pressurizing column 204 continuously descends along with the pressurizing column 204, the cathode shell of the CR2016 type button super capacitor and electrode plates, elastic plates, pressing plates and the like in the cathode shell are pressed into the cylinder 303 (when the pressing depth is greater than the thickness of a button battery), and the anode shell of the CR2025 type button super capacitor cannot be continuously supported at the top of the cylinder 303 along with the downward movement, so that the outer edge of the anode shell is torn off under the action of the inner edge of the inclined plane of the cylinder 303, and is separated from the cathode shell and the electrode plates, the elastic plates, pressing plates and the like in the cathode shell, and the cathode shell of the CR type button super capacitor are separated, and the cathode shell of the CR type button super capacitor is not damaged. After that, the rotary handle 4 is twisted in the anticlockwise direction, the movable module 2, the guide rod 203, the pressing column 204 and the hollow cylinder 206 which are attached to the movable module are all lifted, the pressing column 204, the CR2016 type button super capacitor and the pressing column 301 are separated, the pressing column 301 which can slide vertically and the CR2016 type button super capacitor which is disassembled are ejected out and are higher than the cylinder 303 under the action of the spring ring 304, and the disassembled button battery can be easily removed.
And the shell appearance diagram (diagram) and the electrode slice microscopic electron microscope diagram (diagram) of the button type energy storage device after disassembly are used for representing the disassembly effect of the button type energy storage device.
Example 3:
According to the figures 1-2, the movable module 2 and the fixed module 3 are mounted on a [ -shaped bracket 1 and assembled. The assembled device was transferred into a glove box through a small transition bin of the glove box. The CR2025 type button lithium sulfur battery to be disassembled is placed between the pressurizing column 204 of the movable module 2 and the vertically sliding pressure-bearing column 301 of the fixed module 3, wherein the negative electrode of the CR2025 type button lithium sulfur battery faces the vertically sliding pressure-bearing column 301 of the fixed module 3, the guide rod 203 is inserted into the guide hole 302 to ensure that the centers of the pressurizing column 204 and the pressure-bearing column 301 are opposite, and meanwhile, under the action of parallel inclined planes of the hollow cylinder 206 and the cylinder 303, the positive electrode bending edge of the CR2025 type button lithium sulfur battery is just overlapped with the inclined plane top edge of the cylinder 303 of the fixed module 3. The rotary handle 4 is twisted clockwise, the pressurizing column 204 is gradually pressed against the vertically slidable pressure-bearing column 301, in the process, the trapezoidal sliding block 205 connected to the trapezoidal groove 202 on the pressurizing column through the connecting rod or the inner hexagon screw slides up and down along the trapezoidal sliding groove 207 on the cylinder, the pressure-bearing column 301 is retracted into the cylinder 303 along with the downward movement of the pressurizing column 204, the spring ring 304 is compressed, the height of the cylinder 303 is unchanged, the pressurizing column 204 continuously descends along with the pressurizing column 204, the cathode shell of the CR2025 type button-type lithium sulfur battery and electrode plates, elastic plates, pressing plates and the like in the cathode shell are pressed into the cylinder 303 (when the pressing depth is greater than the thickness of the button battery), the anode shell of the CR2025 type button-type lithium sulfur battery is clamped on the inclined inner edge of the cylinder 303 along with the downward movement, the outer edge of the anode shell is torn under the action of the inclined inner edge of the cylinder 303, the anode shell is separated from the cathode shell and the electrode plates, the buttons, the pressing plates and the like in the cathode shell, and the like in the cathode shell are separated, and the inside the CR2025 type button-type lithium-sulfur battery can be dismounted. After that, the rotary handle 4 is twisted in the anticlockwise direction, the movable module 2, the guide rod 203, the pressing column 204 and the hollow cylinder 206 which are attached to the movable module are all lifted, the pressing column 204, the CR2025 type button lithium sulfur battery and the pressing column 301 are separated, the pressing column 301 which can slide vertically and the CR2025 type button lithium sulfur battery which is disassembled are ejected out and are higher than the height of the cylinder 303 under the action of the spring ring 304, and the disassembled button battery can be easily removed.
And the shell appearance diagram (diagram) and the electrode slice microscopic electron microscope diagram (diagram) of the button type energy storage device after disassembly are used for representing the disassembly effect of the button type energy storage device.
Comparative example:
And clamping the CR2032 type button energy storage device by using a vice or a bench clamp, and tearing the anode and the cathode by using a water gap clamp or a sharp nose clamp along the sealing part of the anode and the cathode shells. This disassembly causes the electrode tabs to change with the deformation of the positive/negative electrode casing, subject to irreversible damage, see fig. 15a. And the appearance diagram of the shell of the button type energy storage device after the device is disassembled is that the electrode plate is intact, see fig. 15b.
Claims (8)
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| CN111129641A (en) * | 2020-02-05 | 2020-05-08 | 温州市博迈环保科技有限公司 | Old and useless button cell dismantles recovery unit |
| CN112290075A (en) * | 2020-10-28 | 2021-01-29 | 苏州华赢新能源材料科技有限公司 | Detachable two-electrode battery test module and assembly method |
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| CN214686315U (en) * | 2021-04-22 | 2021-11-12 | 昆山兴能能源科技有限公司 | Button secondary lithium ion battery disassembling die |
| CN216872029U (en) * | 2022-01-18 | 2022-07-01 | 中国科学院山西煤炭化学研究所 | A portable button-type electrochemical energy storage device dismantling device |
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| CN111129641A (en) * | 2020-02-05 | 2020-05-08 | 温州市博迈环保科技有限公司 | Old and useless button cell dismantles recovery unit |
| CN112290075A (en) * | 2020-10-28 | 2021-01-29 | 苏州华赢新能源材料科技有限公司 | Detachable two-electrode battery test module and assembly method |
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