CN117239258A - Lithium ion pole group winding mechanism and winding method - Google Patents
Lithium ion pole group winding mechanism and winding method Download PDFInfo
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- CN117239258A CN117239258A CN202210634929.4A CN202210634929A CN117239258A CN 117239258 A CN117239258 A CN 117239258A CN 202210634929 A CN202210634929 A CN 202210634929A CN 117239258 A CN117239258 A CN 117239258A
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- 238000004804 winding Methods 0.000 title claims abstract description 220
- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 87
- 239000007773 negative electrode material Substances 0.000 claims description 50
- 239000007774 positive electrode material Substances 0.000 claims description 49
- 230000000712 assembly Effects 0.000 claims description 44
- 238000000429 assembly Methods 0.000 claims description 44
- 230000005405 multipole Effects 0.000 abstract description 14
- 238000005096 rolling process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Battery Electrode And Active Subsutance (AREA)
Abstract
The application relates to a winding mechanism and a winding method of a lithium ion pole group, which relate to the technical field of battery core manufacturing and comprise a winding needle assembly; the positive electrode unreeling component and the negative electrode unreeling component are staggered and are arranged around the reeling needle component; the diaphragm unreels the subassembly, anodal unreels the subassembly with the negative pole unreels and is equipped with at least one between the subassembly the diaphragm unreels the subassembly, unreels the subassembly dislocation through anodal and negative pole and surrounds the needle subassembly, can guarantee that multipole ear positive pole material area, multipole ear negative pole material area can be steady get into in the needle subassembly of rolling up, be convenient for obtain the angle of getting into the needle of rolling up of multipole ear positive pole material area, multipole ear negative pole material area, improve the efficiency of getting into the coiling to improve lithium ion battery coiling efficiency and quality.
Description
Technical Field
The application relates to the technical field of battery core manufacturing, in particular to a winding mechanism and a winding method of a lithium ion pole group.
Background
The lithium ion battery is widely applied to the 3C fields such as mobile phones, digital cameras, PC computers and the like, is also applied to the field of electric tools, and is also an opportunity for vigorous development in the fields of electric automobiles and electric bicycles since 2011 along with the strong support of the state on new energy automobiles, and the demand of the lithium ion battery on the market is increased year by year along with the development of the modern society, so that the capacity of equipment for processing the lithium ion battery on a production line is improved, and the lithium ion battery is a problem for technical staff research.
Disclosure of Invention
The application aims to provide a winding mechanism and a winding method of a lithium ion pole group, so as to solve the problems.
The application provides a lithium ion pole group winding mechanism, which comprises: a winding needle assembly; the positive electrode unreeling component and the negative electrode unreeling component are staggered and are arranged around the reeling needle component; the diaphragm unreels the subassembly, and anodal unreels and is equipped with 1 diaphragm at least between subassembly and the negative pole unreels the subassembly and unreels the subassembly dislocation around the needle subassembly, can guarantee that multipole ear positive pole material area, multipole ear negative pole material area can be steady get into in the needle subassembly, be convenient for obtain the angle of getting into the needle of rolling up of multipole ear positive pole material area, multipole ear negative pole material area, improve the efficiency of getting into the coiling to improve lithium ion battery coiling efficiency and quality.
Further, the positive electrode unreeling component is at least 2 groups, the negative electrode unreeling component is at least 2 groups, and the space occupation of the winding machine equipment placed in a workshop can be reduced by arranging at least 2 groups of positive electrode unreeling components and at least 2 groups of negative electrode unreeling components to be functionally integrated into a whole.
Further, the winding needle component is positioned in the central area of the winding mechanism, and the quantity of the positive electrode unwinding components and the negative electrode unwinding components at the left side and the right side of the normal line of the winding needle component corresponds.
Further, at least 2 positive electrode unreeling assemblies and at least 2 negative electrode unreeling assemblies are used for enabling material strips with the same attribute to enter the reeling needle assembly relatively or at an angle around the reeling needle assembly, and the material strips with the same attribute are enabled to enter the reeling needle assembly relatively or at an angle through the at least 2 positive electrode unreeling assemblies and the at least 2 negative electrode unreeling assemblies, so that the state of entering the reeling needle of the multi-electrode positive electrode material strip and the multi-electrode negative electrode material strip is ensured to be stable, and meanwhile, the reeling efficiency is improved.
Further, the winding needle assembly comprises at least 1 winding needle, the winding needle is provided with 2 winding inlets, when the material strip enters the winding needle, the positions of the winding inlets are arranged at an angle with the normal line of the winding assembly, and the winding inlets of the winding needle are arranged at an angle with the normal line of the winding assembly, so that the positive electrode unwinding assembly and the negative electrode unwinding assembly arranged on the left side and the right side of the normal line of the winding needle assembly can smoothly and rapidly enter the winding needle to be rapidly wound.
Further, at least 2 groups of positive electrode unreeling assemblies oppositely enter the reeling needle assembly around the reeling needle assembly at an angle of 180 degrees; the material strips with the same attribute relatively enter the winding needle assembly at an angle of 180 degrees around the winding needle assembly by at least 2 groups of positive material strips and 2 groups of negative material strips around the winding needle assembly enter the winding needle assembly at an angle of 180 degrees, and the positive winding assembly and the negative winding assembly arranged on the left side and the right side of the normal line of the winding needle assembly can be enabled to smoothly and rapidly enter the winding needle for rapid winding.
Further, at least 2 groups of positive electrode unreeling assemblies enter the reeling needle assemblies around the reeling needle assemblies at any angle in the range of 150-210 degrees of the material strips with the same attribute; at least 2 groups of negative electrode unreeling assemblies are arranged around the reeling needle assemblies, material strips with the same attribute enter the reeling needle assemblies at any angle within the range of 150-210 degrees, and the positive electrode unreeling assemblies and the negative electrode unreeling assemblies arranged on the left side and the right side of the normal line of the reeling needle assemblies can be guaranteed to smoothly and rapidly enter the reeling needle to be rapidly reeled by enabling at least 2 groups of positive electrode material strips and 2 groups of negative electrode material strips which surround the reeling needle assemblies to enter the reeling needle assemblies at the angle of 150-210 degrees.
Further, during winding, the material strips with the same attribute can be simultaneously inserted into the winding needle assembly or sequentially inserted into the winding needle assembly according to a preset sequence to be wound to form a winding cell, and the winding cell is adapted according to winding processes corresponding to different battery settings by applying various pole group winding processes.
Further, a positive electrode unreeling component or a negative electrode unreeling component is arranged between every two adjacent 2 diaphragm unreeling components.
Further, the steering directions of the positive electrode unreeling component, the negative electrode unreeling component and the diaphragm unreeling component are opposite to the steering directions of the reeling needles of the reeling needle component, and the steering directions of the positive electrode unreeling component, the negative electrode unreeling component and the diaphragm unreeling component are opposite to the rotating directions of the reeling needles of the reeling needle component, so that the problem that unreeling and reeling speeds are difficult to match when the positive electrode unreeling component, the negative electrode unreeling component and the diaphragm unreeling component rotate in the same direction can be avoided, and the stability of the control of the conveying speed of the material belt is improved.
The application provides a winding method of a lithium ion pole group, which comprises the following steps: the method comprises the following steps: A. placing the positive electrode material belt, the negative electrode material belt and the diaphragm material belt into a winding needle assembly; B. the diaphragm material belt separates the positive electrode material belt from the negative electrode material belt, the positive electrode material belt and the negative electrode material belt are staggered, the positive electrode material belt, the negative electrode material belt and the diaphragm material belt are wound simultaneously to form a winding cell, the winding needle assembly is put into the diaphragm material belt through the positive electrode material belt, the negative electrode material belt and the diaphragm material belt, the multipolar lug positive electrode material belt and the multipolar lug negative electrode material belt can be ensured to stably enter the winding needle assembly, the angles of entering the winding needle of the multipolar lug positive electrode material belt and the multipolar lug negative electrode material belt are conveniently obtained, the winding efficiency is improved, and the winding efficiency and the winding quality are improved.
Further, A, locating the winding needle assembly in the central area of the winding mechanism, and putting at least one group of positive electrode material belts, negative electrode material belts and diaphragm material belt closing films on the left side and the right side of the normal line of the winding needle assembly into the same winding needle assembly; B. the diaphragm material area separates positive pole material area and negative pole material area, and positive pole material area and negative pole material area dislocation set to positive pole material area, negative pole material area and diaphragm material area are convoluteed, form and are coiled the electric core, through being provided with the positive pole material area of at least a set of positive pole material area, negative pole material area and diaphragm material area and closing the membrane and putting into same needle subassembly of rolling up in the left and right sides of needle subassembly normal, can solve the problem that winding mechanism is inefficiency, improve winding mechanism's winding efficiency.
Further, when the positive electrode material belt, the negative electrode material belt and the diaphragm material belt which are positioned on the left side and the right side of the normal line of the winding assembly are wound, the material belts with the same attribute can be simultaneously inserted into the winding needle assembly or sequentially inserted into the winding needle assembly according to a preset sequence to be wound, a winding battery core is formed, the material belts with the same attribute are simultaneously inserted into the winding needle assembly from the two sides or sequentially inserted into the winding needle assembly according to the preset sequence, the problem of low efficiency of a winding mechanism is solved, and the winding efficiency of the winding mechanism is improved.
Further, the position difference of the negative electrode material strips on the left side and the right side of the normal line of the winding assembly entering the winding needle assembly is any angle within the range of 150-210 degrees, and the negative electrode material strips on the left side and the right side are enabled to enter the winding needle assembly at the angle of 150-210 degrees, so that the situation that the negative electrode material strips are folded when entering the winding needle assembly is reduced, and the negative electrode material strips can enter the winding needle assembly stably is facilitated.
Further, the position difference of the positive electrode material strips positioned at the left side and the right side of the normal line of the winding assembly entering the winding needle assembly is any angle within the range of 150-210 degrees, and the situation that the positive electrode material strips are folded when entering the winding needle assembly is reduced by entering the positive electrode material strips at the left side and the right side into the winding needle assembly at the angle of 150-210 degrees, so that the positive electrode material strips can stably enter the winding needle assembly.
Drawings
FIG. 1 is a front view of an embodiment of the present application;
FIG. 2 is a front view of a winding needle according to an embodiment of the present application;
reference numerals illustrate:
1: a winding mechanism frame; 2: the winding needle component rotates clockwise; 3: the rotation direction of the diaphragm, the negative electrode and the positive electrode unreeling component; 4: a winding needle assembly; 5, a second negative electrode unreeling component; 6: a fourth diaphragm unreeling assembly; 7: the second positive electrode unreeling component; 8: a third diaphragm unreeling assembly; 9 a first negative electrode unreeling component; a second diaphragm unwind assembly; 11: a first positive electrode unreeling assembly; 12: a first diaphragm unwind assembly; 13: a winding needle; 14: a winding inlet;
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It is apparent that the described embodiments are some, but not all, of the embodiments of the present application, and that the components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The application provides an embodiment of a winding mechanism of a lithium ion pole group, as shown in fig. 1, comprising: a winding needle assembly 4; the positive electrode unreeling component and the negative electrode unreeling component are staggered and arranged around the reeling needle component 4; the diaphragm unreels the subassembly, is equipped with 1 diaphragm at least between anodal unreels the subassembly and the negative pole unreels the subassembly and unreels the subassembly dislocation around the reel needle subassembly 4, can guarantee that multipole ear positive pole material area, multipole ear negative pole material area can be steady get into in the reel needle subassembly 4, be convenient for obtain the angle of getting into reel needle 13 of multipole ear positive pole material area, multipole ear negative pole material area, improve the efficiency of getting into the coiling to improve coiling efficiency and quality.
Further, the positive electrode unreeling assembly comprises at least 2 groups of positive electrode unreeling assemblies, and preferably, the positive electrode unreeling assembly comprises a first positive electrode unreeling assembly 11 and a second positive electrode unreeling assembly 7; the negative electrode unreeling assembly is at least 2 groups of negative electrode unreeling assemblies, and preferably the negative electrode unreeling assembly comprises a first negative electrode unreeling assembly 9 and a second negative electrode unreeling assembly 5, and the space occupation of a winding machine device placed in a workshop can be reduced by arranging at least 2 groups of positive electrode unreeling assemblies and at least 2 groups of negative electrode unreeling assemblies on the winding mechanism frame 1 to integrate functions.
Further, the winding needle assembly 4 is located in the central area of the winding mechanism frame 1, and the number of the positive electrode unwinding assemblies and the negative electrode unwinding assemblies on the left side and the right side of the normal line of the winding needle assembly 4 corresponds to that of the negative electrode unwinding assemblies.
Further, at least 2 groups of positive electrode unreeling assemblies surround the reeling needle assembly 4, preferably, two groups of positive electrode unreeling assemblies surround the reeling needle assembly 4, and the first positive electrode unreeling assembly 11 and the second positive electrode unreeling assembly 7 comprise material strips with the same attribute, namely positive electrode material strips conveyed by the first positive electrode unreeling assembly 11 and positive electrode material strips conveyed by the second positive electrode unreeling assembly 7, enter the reeling needle assembly 4 in a relative or angle mode, and enter the material strips into the reeling needle assembly 4 in a relative or angle mode through the at least 2 groups of positive electrode unreeling assemblies, so that stable state of entering reeling needles of the multi-pole ear positive electrode material strips and the multi-pole ear negative electrode material strips is ensured, and meanwhile, the reeling efficiency is improved.
Still further, at least 2 sets of negative electrode unreeling components surround the reeling needle component 4, preferably, two sets of negative electrode unreeling components surround the reeling needle component 4, and the first negative electrode unreeling component 9 and the second negative electrode unreeling component 5 comprise a material belt with the same attribute, namely, a negative electrode material belt conveyed by the first negative electrode unreeling component 9, a negative electrode material belt conveyed by the second negative electrode unreeling component 5 enters the reeling needle component 4 in a relative or angular way, and the material belt enters the reeling needle component 4 in a relative or angular way through at least 2 sets of negative electrode unreeling components, so that the state of entering the reeling needle of the multi-lug positive electrode material belt and the multi-lug negative electrode material belt is ensured to be stable, and the reeling efficiency is improved.
Further, the winding needle assembly 4 comprises at least 1 winding needle 13, as shown in fig. 2, the winding needle is provided with 2 winding inlets 14, when the material strip enters the winding needle 13, the positions of the winding inlets 14 are arranged at an angle with the normal line of the winding assembly 4, and the winding inlets 14 of the winding needle 13 are arranged at an angle with the normal line of the winding assembly, so that the positive electrode unwinding assembly and the negative electrode unwinding assembly arranged on the left side and the right side of the normal line of the winding needle assembly 4 can smoothly and rapidly enter the winding needle to perform rapid winding.
Further, at least 2 sets of positive electrode unreeling assemblies surround the reeling needle assembly 4, preferably, two sets of positive electrode unreeling assemblies surround the reeling needle assembly 4, and the first positive electrode unreeling assembly 11 and the second positive electrode unreeling assembly 7 are used for oppositely entering the reeling needle assembly 4 at an angle of 180 DEG, wherein the material belts with the same attribute are conveyed by the first positive electrode unreeling assembly 11 and the second positive electrode unreeling assembly 7, and the positive electrode material belts conveyed by the second positive electrode unreeling assembly 7 are shown as alpha in fig. 1; by entering at least 2 groups of positive electrode material strips around the winding pin assembly 4 into the winding pin assembly 4 at an angle of 180 degrees, the positive electrode unreeling assembly and the negative electrode unreeling assembly arranged on the left side and the right side of the normal line of the winding pin assembly 4 can be ensured to smoothly and quickly enter the winding pin for rapid winding.
Further, at least 2 groups of negative electrode unreeling components are wound around the winding needle component 4, preferably, two groups of negative electrode unreeling components are wound around the winding needle component 4, and the first negative electrode unreeling component 9 and the second negative electrode unreeling component 5 are arranged on the same material belt, namely, the negative electrode material belt conveyed by the first negative electrode unreeling component 9, and the negative electrode material belt conveyed by the second negative electrode unreeling component 5 relatively enters the winding needle component 4 at an angle of 180 degrees, as shown by beta in fig. 1, by entering at least 2 groups of negative electrode material belts around the winding needle component 4 into the winding needle component 4 at an angle of 180 degrees, the positive electrode unreeling component and the negative electrode unreeling component arranged on the left side and the right side of the normal line of the winding needle component 4 can be ensured to be smoothly and rapidly wound into the winding needle.
Further, at least 2 sets of positive electrode unreeling assemblies are arranged around the reeling needle assembly 4, preferably, two sets of positive electrode unreeling assemblies are arranged around the reeling needle assembly 4, wherein the first positive electrode unreeling assembly 11 and the second positive electrode unreeling assembly 7 are arranged, the first positive electrode unreeling assembly 11 and the second positive electrode unreeling assembly 7 are used for conveying material strips with the same attribute, namely positive electrode material strips conveyed by the first positive electrode unreeling assembly 11, and positive electrode material strips conveyed by the second positive electrode unreeling assembly 7 enter the reeling needle assembly 4 at any angle ranging from 150 degrees to 210 degrees, as shown by alpha in fig. 1; by entering at least 2 groups of positive electrode material strips around the winding needle assembly 4 into the winding needle assembly 4 at an angle of 150-210 degrees, the positive electrode unreeling assembly and the negative electrode unreeling assembly arranged on the left side and the right side of the normal line of the winding needle assembly 4 can be ensured to smoothly and quickly enter the winding needle for quick winding.
Further, at least 2 groups of negative electrode unreeling assemblies are arranged around the reeling needle assembly 4, preferably, two groups of negative electrode unreeling assemblies are arranged around the reeling needle assembly 4, and the first negative electrode unreeling assembly 9 and the second negative electrode unreeling assembly 5 are arranged on the same material belts, namely, the negative electrode material belts conveyed by the first negative electrode unreeling assembly 9, and the negative electrode material belts conveyed by the second negative electrode unreeling assembly 5 enter the reeling needle assembly 4 at any angle within the range of 150-210 degrees, as shown by beta in fig. 1, by entering at least 2 groups of negative electrode material belts around the reeling needle assembly 4 into the reeling needle assembly 4 at an angle of 150-210 degrees, the positive electrode unreeling assemblies and the negative electrode unreeling assemblies arranged on the left side and the right side of the normal line of the reeling needle assembly 4 can be ensured to be smoothly and rapidly wound into the reeling needle.
Further, during winding, the material strips with the same attribute can be simultaneously inserted into the winding needle assembly 4 or sequentially inserted into the winding needle assembly 4 according to a preset sequence for winding to form a winding cell, and the winding cell is adapted according to different battery setting corresponding winding processes by applying various pole group winding processes.
Further, a positive electrode unreeling component or a negative electrode unreeling component is arranged between every two adjacent 2 diaphragm unreeling components.
Still further, as shown in fig. 1, a first positive electrode unwinding assembly 11 is disposed between the first diaphragm unwinding assembly 12 and the second diaphragm unwinding assembly 10, a first negative electrode unwinding assembly 9 is disposed between the second diaphragm unwinding assembly 10 and the third diaphragm unwinding assembly 8, a second positive electrode unwinding assembly 7 is disposed between the third diaphragm unwinding assembly 8 and the fourth diaphragm unwinding assembly 8, and a second negative electrode unwinding assembly 5 is disposed between the fourth diaphragm unwinding assembly 8 and the first diaphragm unwinding assembly 12.
Further, the steering directions of the positive electrode unreeling component, the negative electrode unreeling component and the diaphragm unreeling component are opposite to the steering directions of the reeling needle component 4, and the steering directions of the positive electrode unreeling component, the negative electrode unreeling component and the diaphragm unreeling component are opposite to the rotating directions of the reeling needle component 4, so that the problem that unreeling and reeling speeds are difficult to match when the materials are rotated in the same direction can be avoided, and the stability of the control of the conveying speed of the materials is improved.
Further, as shown in fig. 1, the rotation directions of the first diaphragm unreeling component 12, the second diaphragm unreeling component 10, the third diaphragm unreeling component 8, the fourth diaphragm unreeling component 8, the first positive unreeling component 11, the second positive unreeling component 7, the first negative unreeling component 9 and the second negative unreeling component 5 are the rotation directions 3 of the diaphragm, the negative and the positive unreeling components, and the rotation direction 2 of the winding needle component 4 is clockwise.
The application provides a winding method of a lithium ion pole group, which comprises the following steps: the method comprises the following steps: A. placing the positive electrode material belt, the negative electrode material belt and the diaphragm material belt into a winding needle assembly 4; B. the positive electrode material belt and the negative electrode material belt are separated by the diaphragm material belt, the positive electrode material belt and the negative electrode material belt are staggered, the positive electrode material belt, the negative electrode material belt and the diaphragm material belt are wound simultaneously to form a winding cell, the winding needle assembly 4 is placed in the positive electrode material belt, the negative electrode material belt and the diaphragm material belt, the multipolar lug positive electrode material belt and the multipolar lug negative electrode material belt can be ensured to stably enter the winding needle assembly 4, the angles of the multipolar lug positive electrode material belt and the multipolar lug negative electrode material belt entering the winding needle are conveniently obtained, the winding efficiency is improved, and the winding efficiency and the winding quality are improved.
Further, A, locating the winding needle assembly 4 in the central area of the winding mechanism, and putting at least one group of positive electrode material strips, negative electrode material strips and membrane material strips into the same winding needle assembly 4 by arranging at least one group of positive electrode material strips, negative electrode material strips and membrane material strips on the left side and the right side of the normal line of the winding needle assembly 4; B. the diaphragm material area separates positive pole material area and negative pole material area, positive pole material area and negative pole material area dislocation set to positive pole material area, negative pole material area and diaphragm material area are convoluteed, form and are coiled the electric core, through being provided with the positive pole material area of at least a set of, negative pole material area and diaphragm material area and closing the membrane and putting into same needle subassembly 4 of rolling up in the left and right sides of needle subassembly 4 normal, can solve the problem that winding mechanism is inefficiency, improve winding mechanism's winding efficiency.
Further, when the positive electrode material belt, the negative electrode material belt and the diaphragm material belt which are positioned on the left side and the right side of the normal line of the winding assembly are wound, the material belts with the same attribute can be simultaneously inserted into the winding needle assembly 4 or sequentially inserted into the winding needle assembly 4 according to a preset sequence to be wound, a winding cell is formed, the material belts with the same attribute are simultaneously inserted into the winding needle assembly 4 from the two sides or sequentially according to the preset sequence, the problem of low efficiency of a winding mechanism is solved, and the winding efficiency of the winding mechanism is improved.
Further, the position difference of the negative electrode material strips on the left side and the right side of the normal line of the winding assembly entering the winding needle assembly 4 is any angle ranging from 150 degrees to 210 degrees, and the negative electrode material strips on the left side and the right side are enabled to enter the winding needle assembly 4 at the angle ranging from 150 degrees to 210 degrees, so that the situation that the negative electrode material strips are folded when the negative electrode material strips enter the winding needle assembly 4 is reduced, and the negative electrode material strips can enter the winding needle assembly 4 stably is facilitated.
Further, the difference of the positions of the positive electrode material strips on the left side and the right side of the normal line of the winding assembly entering the winding needle assembly 4 is any angle within the range of 150-210 degrees, and the situation that the positive electrode material strips are folded when the positive electrode material strips enter the winding needle assembly 4 is reduced by entering the positive electrode material strips on the left side and the right side into the winding needle assembly 4 at the angle of 150-210 degrees, so that the positive electrode material strips can enter the winding needle assembly 4 stably is facilitated.
In the description of the present application, it should be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
While the application has been described in conjunction with the specific embodiments above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, all such alternatives, modifications, and variations are included within the spirit and scope of the following claims.
Claims (15)
1. A lithium ion battery winding mechanism, comprising:
a winding needle assembly;
the positive electrode unreeling component and the negative electrode unreeling component are staggered and are arranged around the reeling needle component;
and at least 1 diaphragm unreeling assembly is arranged between the anode unreeling assembly and the cathode unreeling assembly.
2. The lithium-ion battery pack winding mechanism of claim 1, wherein the positive electrode unreeling assembly is at least 2 sets and the negative electrode unreeling assembly is at least 2 sets.
3. The lithium ion battery winding mechanism according to claim 2, wherein the winding needle assembly is located in a central area of the winding mechanism, and the number of the positive electrode unwinding assemblies and the negative electrode unwinding assemblies on the left and right sides of a normal line of the winding needle assembly corresponds to that of the negative electrode unwinding assemblies.
4. The lithium-ion battery pack winding mechanism of claim 2, wherein at least 2 sets of the positive electrode unwind assemblies, at least 2 sets of the negative electrode unwind assemblies, surround the winding needle assembly, oppose or angle the ribbon of material of the same nature into the winding needle assembly.
5. The lithium ion battery winding mechanism of claim 4, wherein the winding needle assembly comprises at least 1 winding needle having 2 winding openings positioned at an angle to a normal of the winding assembly when the strip enters the winding needle.
6. The lithium-ion battery pack winding mechanism of claim 4, wherein at least 2 sets of the positive electrode unwind assemblies are positioned around the winding pin assembly such that the tapes of the same nature are relatively entered into the winding pin assembly at an angle of 180 °; at least 2 sets of said negative unwind assemblies are arranged around said winding needle assembly such that said webs of the same nature are relatively entered into said winding needle assembly at an angle of 180 °.
7. The lithium ion battery pack winding mechanism of claim 4, wherein at least 2 sets of said positive electrode unwind assemblies enter said winding needle assembly at any angle in the range of 150 ° -210 ° to said web of material of the same attribute around said winding needle assembly; at least 2 sets of said negative electrode unwind assemblies enter said winding needle assembly around said winding needle assembly at any angle in the range of 150 ° -210 ° to said web of material of the same nature.
8. The winding mechanism of any one of claims 6 or 7, wherein during winding, the tapes of the same property can be simultaneously inserted into the winding needle assembly or sequentially inserted into the winding needle assembly in a predetermined order for winding to form a winding cell.
9. The lithium-ion battery pack winding mechanism of claim 1, wherein 2 adjacent separator unreeling assemblies are separated by one of the positive electrode unreeling assembly or the negative electrode unreeling assembly.
10. The lithium-ion battery pack winding mechanism of claim 5, wherein the positive electrode unwind assembly, the negative electrode unwind assembly, and the separator unwind assembly all turn in opposition to the winding needle of the winding needle assembly.
11. A winding method of a lithium ion electrode group comprises the following steps: the method comprises the following steps: A. placing the positive electrode material belt, the negative electrode material belt and the diaphragm material belt into a winding needle assembly; B. the separator material belt separates the positive electrode material belt from the negative electrode material belt, the positive electrode material belt and the negative electrode material belt are staggered, and the material belt, the negative electrode material belt and the separator material belt are wound simultaneously to form a winding cell.
12. The method for winding a lithium ion electrode group according to claim 11, wherein a winding needle assembly is positioned in a central area of a winding mechanism, and at least one group of positive electrode material strips, negative electrode material strips and diaphragm material strips are arranged on the left side and the right side of a normal line of the winding needle assembly and put into the same winding needle assembly; B. the separator material belt separates the positive electrode material belt from the negative electrode material belt, the positive electrode material belt and the negative electrode material belt are arranged in a staggered mode, and the positive electrode material belt, the negative electrode material belt and the separator material belt are wound to form a winding electric core.
13. The method according to claim 12, wherein the positive electrode material tape, the negative electrode material tape, and the separator material tape positioned on both sides of the normal line of the winding assembly are wound so that the material tapes having the same properties can be simultaneously inserted into the winding needle assembly or sequentially inserted into the winding needle assembly in a predetermined order during winding to form a winding cell.
14. The method of claim 13, wherein the difference in the positions of the negative electrode material tapes on the left and right sides of the normal line of the winding assembly into the winding needle assembly is any angle in the range of 150 ° -210 °.
15. The method of claim 13, wherein the positive electrode material strips on both sides of the normal to the winding assembly are at any angle within the range of 150 ° -210 ° from the position of the positive electrode material strips entering the winding needle assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634929.4A CN117239258A (en) | 2022-06-06 | 2022-06-06 | Lithium ion pole group winding mechanism and winding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210634929.4A CN117239258A (en) | 2022-06-06 | 2022-06-06 | Lithium ion pole group winding mechanism and winding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117239258A true CN117239258A (en) | 2023-12-15 |
Family
ID=89097217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210634929.4A Pending CN117239258A (en) | 2022-06-06 | 2022-06-06 | Lithium ion pole group winding mechanism and winding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117239258A (en) |
-
2022
- 2022-06-06 CN CN202210634929.4A patent/CN117239258A/en active Pending
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