CN106803564A - A kind of pole piece tape splicing instrument and pole piece tape splicing method - Google Patents
A kind of pole piece tape splicing instrument and pole piece tape splicing method Download PDFInfo
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- CN106803564A CN106803564A CN201710084085.XA CN201710084085A CN106803564A CN 106803564 A CN106803564 A CN 106803564A CN 201710084085 A CN201710084085 A CN 201710084085A CN 106803564 A CN106803564 A CN 106803564A
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- 238000000034 method Methods 0.000 title claims abstract description 63
- 238000003825 pressing Methods 0.000 claims abstract description 75
- 238000005520 cutting process Methods 0.000 claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 24
- 230000000712 assembly Effects 0.000 claims description 11
- 238000000429 assembly Methods 0.000 claims description 11
- 238000005096 rolling process Methods 0.000 claims description 11
- 230000002950 deficient Effects 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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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
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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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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- Replacement Of Web Rolls (AREA)
Abstract
本发明公开了一种极片接带工具及极片接带方法，极片接带工具包括：主工作平台，所述主工作平台上设有一用以供极片接带的接带区，所述接带区上设有多条裁切线；第一极片压杆，所述第一极片压杆可移动靠近于所述主工作平台的一侧端上，以用于抵压置于所述主工作平台上的极片；第二极片压杆，所述第二极片压杆可移动靠近于所述主工作平台的另一侧端上，以用于抵压置于所述主工作平台上的极片；第一驱动装置和第二驱动装置，用于驱动极片压杆移动靠近或者远离所述主工作平台。通过极片压杆固定极片，在接带区设置多条裁切线，提高了接带的准确性，解决极片接带后续工序中加工生产不良、报废率高、卷绕一次通过率低和卷绕产品的一致性差等问题。
The invention discloses a pole piece connecting tool and a pole piece connecting method. The pole piece connecting tool includes: a main working platform, and a connecting area for connecting the pole piece is arranged on the main working platform. There are a plurality of cutting lines on the connecting belt area; the first pole piece pressing rod, the first pole piece pressing rod can be moved close to the side end of the main working platform for pressing against the The pole piece on the main working platform; the second pole piece pressing rod, the second pole piece pressing rod can be moved close to the other side end of the main working platform for pressing against the main working platform The pole piece on the working platform; the first driving device and the second driving device are used to drive the pole piece pressing rod to move close to or away from the main working platform. The pole piece is fixed by the pole piece pressing rod, and multiple cutting lines are set in the tape connection area, which improves the accuracy of the tape connection, and solves the problem of poor processing and production, high scrap rate, low winding pass rate and problems in the subsequent process of pole piece connection. Problems such as poor consistency of winding products.
Description
技术领域technical field
本发明涉及锂离子电池极片领域，尤其涉及一种极片接带工具及极片接带方法。The invention relates to the field of lithium-ion battery pole pieces, in particular to a pole piece connecting tool and a pole piece connecting method.
背景技术Background technique
锂离子电池正负极片涂布、对辊、分切制片过程中产生大量接头，造成极片长度偏长偏短，导致制片贴胶错误、极耳位置不对、卷绕卷偏、卷绕黑芯、卷绕螺旋等不良；在极片接带工序中没有标准的接带平台和标准接带方法，引起后续工序加工生产不良、报废率高、生产效率低、卷绕一次通过率低和卷绕产品的一致性差等问题。A large number of joints are produced during the coating, roll-to-roll, and slitting process of the positive and negative electrodes of lithium-ion batteries, resulting in longer and shorter electrode lengths, resulting in errors in gluing, wrong positions of tabs, deviation in winding, and winding. Defects such as winding black core and winding spiral; there is no standard splicing platform and standard splicing method in the pole piece splicing process, which causes poor processing and production in subsequent processes, high scrap rate, low production efficiency, and low winding pass rate and poor consistency of winding products.
发明内容Contents of the invention
为了克服现有技术的不足，本发明的目的在于提供一种极片接带工具及极片接带方法，其能解决极片接带后续工序中加工生产不良、报废率高、生产效率低、卷绕一次通过率低和卷绕产品的一致性差等问题。In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a pole piece splicing tool and a pole piece splicing method, which can solve the problems of poor processing and production, high scrap rate, low production efficiency, There are problems such as low winding pass rate and poor consistency of winding products.
本发明的目的采用以下技术方案实现：The object of the present invention adopts following technical scheme to realize:
一种极片接带工具，包括：A pole piece connecting tool, comprising:
主工作平台，所述主工作平台上设有一用以供极片接带的接带区，所述接带区上设有多条裁切线；The main working platform, the main working platform is provided with a belt connection area for the pole piece connection, and a plurality of cutting lines are arranged on the belt connection area;
第一极片压杆，所述第一极片压杆可移动靠近于所述主工作平台的一侧端上，以用于抵压置于所述主工作平台上的极片；A first pole piece pressing rod, the first pole piece pressing rod can be moved close to one side end of the main working platform, so as to press against the pole piece placed on the main working platform;
第二极片压杆，所述第二极片压杆可移动靠近于所述主工作平台的另一侧端上，以用于抵压置于所述主工作平台上的极片；The second pole piece pressing rod, the second pole piece pressing rod can be moved close to the other side end of the main working platform, so as to press against the pole piece placed on the main working platform;
第一驱动装置，所述第一驱动装置与所述第一极片压杆连接，以用于驱动所述第一极片压杆移动靠近或者远离所述主工作平台的一侧端；a first driving device, the first driving device is connected to the first pole piece pressing rod, and is used to drive the first pole piece pressing rod to move close to or away from one side end of the main working platform;
第二驱动装置，所述第二驱动装置与所述第二极片压杆连接，以用于驱动所述第二极片压杆移动靠近或者远离所述主工作平台的另一侧端。The second driving device is connected with the second pole piece pressing rod, and is used to drive the second pole piece pressing rod to move close to or away from the other side end of the main working platform.
优选的，所述第一驱动装置包括至少两个第一驱动组件，任一个所述第一驱动组件包括第一安装架及第一气缸，所述第一安装架设于所述主工作平台的底侧上，所述第一气缸设于所述第一安装架上，且所述第一气缸的输出端穿过所述主工作平台并连接于所述第一极片压杆。Preferably, the first drive device includes at least two first drive assemblies, any one of the first drive assemblies includes a first installation frame and a first cylinder, and the first installation frame is installed on the bottom of the main working platform. On the side, the first air cylinder is arranged on the first installation frame, and the output end of the first air cylinder passes through the main working platform and is connected to the first pole piece pressing rod.
优选的，任一个所述第一驱动组件还包括用以控制所述第一气缸工作的第一电磁开关，所述第一电磁开关与所述第一气缸连接。Preferably, any one of the first drive components further includes a first electromagnetic switch for controlling the operation of the first cylinder, and the first electromagnetic switch is connected with the first cylinder.
优选的，所述第二驱动装置包括至少两个第二驱动组件，任一个所述第二驱动组件包括第二安装架及第二气缸，所述第二安装架设于所述主工作平台的底侧上，所述第二气缸设于所述第二安装架上，且所述第二气缸的输出端穿过所述主工作平台并连接于所述第二极片压杆。Preferably, the second drive device includes at least two second drive assemblies, any one of the second drive assemblies includes a second installation frame and a second cylinder, and the second installation frame is set on the bottom of the main working platform On the side, the second air cylinder is arranged on the second installation frame, and the output end of the second air cylinder passes through the main working platform and is connected to the second pole piece pressing rod.
优选的，任一个所述第二驱动组件还包括用以控制所述第二气缸工作的第二电磁开关，所述第二电磁开关与所述第二气缸连接。Preferably, any one of the second drive components further includes a second electromagnetic switch for controlling the operation of the second cylinder, and the second electromagnetic switch is connected with the second cylinder.
优选的，还包括用以防止所述第一极片压杆和/或所述第二极片压杆压于极片上时压坏所述极片的防压损保护件，所述防压损保护件设于所述第一极片压杆和/或所述第二极片压杆的与所述极片接触的一侧端上。Preferably, it also includes an anti-pressure protection member for preventing the pole piece from being crushed when the first pole piece pressing rod and/or the second pole piece pressing rod is pressed on the pole piece, the pressure loss prevention The protection member is provided on one end of the first pole piece pressing rod and/or the second pole piece pressing rod which is in contact with the pole piece.
优选的，所述防压损保护件为一弹性压带、弹性垫片或者海绵。Preferably, the anti-pressure damage protection member is an elastic pressure belt, an elastic gasket or a sponge.
优选的，所述裁切线之间的距离相等。Preferably, the distances between the cutting lines are equal.
本发明还涉及一种应用上述极片接带工具的极片接带方法，包括：The present invention also relates to a pole piece bonding method using the above pole piece bonding tool, comprising:
将合格的极片A通过所述第二极片压杆与所述主工作平台之间形成的通道，以使极片A的特定工艺极片段进入所述主工作平台的接带区上，其中，所述极片A的特定工艺极片段包括收卷端和第一接带端；Pass the qualified pole piece A through the channel formed between the second pole piece pressing rod and the main working platform, so that the specific process pole segment of the pole piece A enters the belt connection area of the main working platform, wherein , the specific process pole segment of the pole piece A includes a winding end and a first tape end;
将所述第一接带端与其中一个所述裁切线对齐；aligning said first tape end with one of said cut lines;
通过所述第二驱动装置使所述第二极片压杆将所述收卷端压紧；Using the second driving device to make the second pole piece pressing rod compress the winding end;
将具有不良部分的极片B通过所述第一极片压杆与所述主工作平台之间形成的通道，以使所述极片B的特定工艺极片段进入所述主工作平台的接带区上，并叠在所述极片A的特定工艺极片段上，且使所述极片B的特定工艺极片段上的极片涂布间隙留白与所述极片A的特定工艺极片段上的极片涂布间隙留白对齐叠合，其中，所述极片B的特定工艺极片段包括辊压端和第二接带端，所述极片B的不良部分位于所述第二接带端上；Pass the pole piece B with defective parts through the channel formed between the first pole piece pressing rod and the main working platform, so that the specific process pole segment of the pole piece B enters the joint of the main working platform area, and superimposed on the specific process pole segment of the pole piece A, and leave the pole piece coating gap on the specific process pole segment of the pole piece B blank with the specific process pole segment of the pole piece A The pole piece coating gap on the pole piece is aligned and stacked, wherein, the specific process pole section of the pole piece B includes a rolling end and a second tape end, and the defective part of the pole piece B is located at the second joint end. on the belt end;
通过所述第一驱动装置使所述第一极片压杆将辊压端压紧；Using the first driving device to make the first pole piece pressing rod compress the rolling end;
沿其中一个所述裁切线裁切掉位于所述第二接带端上的所述极片B的不良部分，并保证裁切后所述第二接带端与所述第一接带端具有重叠部分；Cut off the defective part of the pole piece B located on the second tape end along one of the cutting lines, and ensure that after cutting, the second tape end and the first tape end have a overlap;
将所述第一接带端与所述第二接带端连接。Connect the first tape end to the second tape end.
优选的，采用高温双面胶将所述第一接带端与所述第二接带端连接。Preferably, the first tape-connecting end is connected to the second tape-connecting end with high-temperature double-sided adhesive.
相比现有技术，本发明的有益效果在于：通过极片压杆固定极片，在接带区设置多条裁切线，提高了接带的准确性，解决极片接带后续工序中加工生产不良、报废率高、生产效率低、卷绕一次通过率低和卷绕产品的一致性差等问题。Compared with the prior art, the beneficial effect of the present invention is that the pole piece is fixed by the pole piece pressing rod, and a plurality of cutting lines are set in the splicing area, which improves the accuracy of the splicing and solves the problem of processing and production in the subsequent process of splicing the pole piece. Bad, high scrap rate, low production efficiency, low first pass rate of winding and poor consistency of winding products.
附图说明Description of drawings
图1为本发明实施例提供的极片接带工具示意图；Fig. 1 is a schematic diagram of a pole piece connecting tool provided by an embodiment of the present invention;
图2为图1使用图1所示极片接带工具接带的极片的示意图；Fig. 2 is a schematic diagram of the pole piece connected with the pole piece belt tool shown in Fig. 1 as shown in Fig. 1;
图3为本发明实施例提供的极片接带方法流程示意图。Fig. 3 is a schematic flow chart of a pole piece splicing method provided by an embodiment of the present invention.
具体实施方式detailed description
下面，结合附图以及具体实施方式，对本发明做进一步描述：Below, in conjunction with accompanying drawing and specific embodiment, the present invention is described further:
如图1所示，本发明一较佳实施例中一极片接带工具，包括：主工作平台1、第一极片压杆2、第二极片压杆3、第一驱动装置4和第二驱动装置(图中未示出)。As shown in Figure 1, a pole piece connecting tool in a preferred embodiment of the present invention includes: a main working platform 1, a first pole piece pressing bar 2, a second pole piece pressing bar 3, a first driving device 4 and The second driving device (not shown in the figure).
主工作平台1上设有一用以供极片接带的接带区11，接带区11上设有多条裁切线111；其中，裁切线111为直线槽，并且从主工作平台1长度方向的一侧端延伸至主工作平台1长度方向的另一侧端，且裁切线111的两侧端均不延伸穿过主工作平台1。裁切线111之间的距离相等，根据工艺需要裁切线的数量可设为3-5道，且裁切线之间的距离大于极片接带过程中工艺要求的极片之间的重叠距离。第一极片压杆2可移动靠近于主工作平台1的一侧端上，以用于抵压置于主工作平台1上的极片。第二极片压杆3可移动靠近于主工作平台1的另一侧端上，以用于抵压置于主工作平台1上的极片。第一驱动装置4与第一极片压杆2连接，以用于驱动第一极片压杆2移动靠近或者远离主工作平台1的一侧端。第二驱动装置与第二极片压杆3连接，以用于驱动第二极片压杆3移动靠近或者远离主工作平台1的另一侧端。The main working platform 1 is provided with a connecting zone 11 for connecting the pole piece, and the connecting zone 11 is provided with a plurality of cutting lines 111; One side end of the cutting line 111 extends to the other side end in the length direction of the main working platform 1 , and both ends of the cutting line 111 do not extend through the main working platform 1 . The distance between the cutting lines 111 is equal, and the number of cutting lines can be set to 3-5 according to the process requirements, and the distance between the cutting lines is greater than the overlapping distance between the pole pieces required by the process of the pole piece bonding process. The first pole piece pressing rod 2 is movable on one side end close to the main working platform 1 for pressing the pole piece placed on the main working platform 1 . The second pole piece pressing rod 3 can move close to the other end of the main working platform 1 for pressing the pole piece placed on the main working platform 1 . The first driving device 4 is connected with the first pole piece pressing rod 2 for driving the first pole piece pressing rod 2 to move close to or away from one side end of the main working platform 1 . The second driving device is connected with the second pole piece pressing rod 3 for driving the second pole piece pressing rod 3 to move close to or away from the other side end of the main working platform 1 .
将合格极片穿过第二极片压杆3置于接带区11上，一端用第二极片压杆3固定，另一端沿裁切线裁断；将具有不良极片的极片穿过第一极片压杆2置于接带区11上，一端用第一极片压杆2固定，另一端沿裁切线裁断不良极片部分；将合格极片和裁去不良极片部分的极片的特定工艺端对齐连接，保证接带的准确性，解决极片接带后续工序中加工生产不良和报废率高的问题，生产效率和卷绕一次通过率高，提升卷绕卷芯的一致性，降低制造成本。Pass the qualified pole piece through the second pole piece pressing bar 3 and place it on the belt connection area 11, fix one end with the second pole piece pressing bar 3, and cut the other end along the cutting line; pass the pole piece with bad pole piece through the second pole piece A pole piece pressing rod 2 is placed on the connecting zone 11, one end is fixed with the first pole piece pressing rod 2, and the other end is cut off the bad pole piece part along the cutting line; The specific process ends are aligned and connected to ensure the accuracy of the splicing, and solve the problems of poor processing and production and high scrap rate in the subsequent process of splicing the pole piece. The production efficiency and winding pass rate are high, and the consistency of the winding core is improved. Reduce manufacturing costs.
第一驱动装置4包括至少两个第一驱动组件41，任一个第一驱动组件41包括第一安装架411及第一气缸412，第一安装架411设于主工作平台1的底侧上，第一气缸412设于第一安装架411上，且第一气缸412的输出端穿过主工作平台1并连接于第一极片压杆2。第二驱动装置包括至少两个第二驱动组件(图中未示出)，任一个第二驱动组件包括第二安装架(图中未示出)及第二气缸(图中未示出)，第二安装架设于主工作平台1的底侧上，第二气缸设于第二安装架上，且第二气缸的输出端穿过主工作平台1并连接于第二极片压杆。通过气缸可以稳定控制两个极片压杆远离和靠近主工作平台。The first driving device 4 includes at least two first driving assemblies 41, any one of the first driving assemblies 41 includes a first mounting frame 411 and a first cylinder 412, and the first mounting frame 411 is arranged on the bottom side of the main working platform 1, The first air cylinder 412 is disposed on the first installation frame 411 , and the output end of the first air cylinder 412 passes through the main working platform 1 and is connected to the first pole piece pressing rod 2 . The second drive device includes at least two second drive assemblies (not shown in the figure), any second drive assembly includes a second mounting frame (not shown in the figure) and a second cylinder (not shown in the figure), The second mounting frame is set on the bottom side of the main working platform 1, the second air cylinder is arranged on the second mounting frame, and the output end of the second air cylinder passes through the main working platform 1 and is connected to the second pole piece pressing rod. The two pole piece pressing rods can be stably controlled to move away from and close to the main working platform through the cylinder.
任一个第一驱动组件41还包括用以控制所述第一气缸工作的第一电磁开关413，第一电磁开关413与第一气缸412连接。任一个第二驱动组件还包括用以控制第二气缸工作的第二电磁开关，第二电磁开关与所述第二气缸连接，电磁开关的位置可以根据操作需要放置，便于控制。Any one of the first driving components 41 further includes a first electromagnetic switch 413 for controlling the operation of the first cylinder, and the first electromagnetic switch 413 is connected with the first cylinder 412 . Any second drive assembly also includes a second electromagnetic switch for controlling the operation of the second air cylinder, the second electromagnetic switch is connected with the second air cylinder, and the position of the electromagnetic switch can be placed according to the operation requirements for easy control.
主工作平台两端还设有固定孔12，用于将极片接带工具固定在操作平台上。Both ends of the main working platform are also provided with fixing holes 12 for fixing the pole piece connecting tool on the operating platform.
优选的，极片接带工具还包括用以防止第一极片压杆2和/或第二极片压杆3压于极片上时压坏极片的防压损保护件21，防压损保护件21设于第一极片压杆2和/或第二极片压杆3的与极片接触的一侧端上。优选的，防压损保护件为一弹性压带、弹性垫片或者海绵。压损保护件可以有效的防止第一极片压杆和第二极片压杆压坏极片，保证极片的合格率。Preferably, the pole piece connecting tool also includes an anti-pressure damage protection member 21 for preventing the first pole piece pressing rod 2 and/or the second pole piece pressing rod 3 from being crushed on the pole piece when the pole piece is pressed against the pole piece. The protection member 21 is arranged on one end of the first pole piece pressing rod 2 and/or the second pole piece pressing rod 3 which is in contact with the pole piece. Preferably, the anti-pressure loss protection member is an elastic pressure belt, elastic gasket or sponge. The pressure loss protection member can effectively prevent the pole piece from being crushed by the first pole piece pressing rod and the second pole piece pressing rod, so as to ensure the qualified rate of the pole piece.
本发明实施例提供的极片接带工具可以在辊压后收卷前安装和分切设备放卷纠偏前安装，通过所述极片接带工具将待连接的极片对齐连接，解决极片接带后续工序中的加工生产不良问题，降低报废率和制造成本。The pole piece connecting tool provided by the embodiment of the present invention can be installed before winding after rolling and before unwinding and correcting the slitting equipment. The pole piece to be connected can be aligned and connected through the pole piece connecting tool to solve the problem of pole piece The problem of poor processing and production in the subsequent process of splicing can reduce the scrap rate and manufacturing cost.
本发明实施例还提供一种利用上述极片接带工具的极片接带方法，以辊压后收卷前安装的极片接带工具的接带方法为例，如图1至3所示，使用图1所示极片接带工具的极片接带方法包括：The embodiment of the present invention also provides a pole piece splicing method using the above pole piece splicing tool, taking the pole piece splicing method installed before winding after rolling as an example, as shown in Figures 1 to 3 , the method of connecting the pole piece using the pole piece connecting tool shown in Figure 1 includes:
步骤S101：将合格的极片A通过所述第二极片压杆3与所述主工作平台1之间形成的通道，以使极片A的特定工艺极片段进入所述主工作平台的接带区11上，其中，所述极片A的特定工艺极片段包括收卷端5和第一接带端6。Step S101: pass the qualified pole piece A through the channel formed between the second pole piece pressing rod 3 and the main working platform 1, so that the pole piece A with a specific process enters the interface of the main working platform. On the belt area 11 , wherein, the specific process pole segment of the pole piece A includes a winding end 5 and a first tape connection end 6 .
具体的，极片结构如图2所示，极片上设有不同长度的工艺极片段，不同长度的工艺极片段之间为极片涂布间隙留白9，极片接带工具位于极片辊压机和极片收卷机之间，当检测到不良极片时，辊压机停止辊压，截断极片。将已经经过极片接带工具的合格的极片A通过所述第二极片压杆3与所述主工作平台1之间形成的通道，放在接带区11上，可以将极片的较长的工艺极片段作为特定工艺极片段，也可以将极片的较短的工艺极片段作为特定工艺极片段。Specifically, the structure of the pole piece is shown in Figure 2. The pole piece is provided with different lengths of process pole segments. Between the process pole segments of different lengths, there is a gap 9 for the pole piece coating. The pole piece connecting tool is located on the pole piece roller. Between the press and the pole piece winder, when a bad pole piece is detected, the roller press stops rolling and cuts off the pole piece. Put the qualified pole piece A that has passed through the pole piece connecting tool through the passage formed between the second pole piece pressing rod 3 and the main working platform 1 on the belt connecting area 11, and the pole piece can be The longer process pole segment is used as a specific process pole segment, and the shorter process pole segment of the pole piece can also be used as a specific process pole segment.
步骤S102：将所述第一接带端6与其中一个所述裁切线111对齐。Step S102 : Align the first tape end 6 with one of the cutting lines 111 .
具体的，为了保证接带的精确度，也可以将特定工艺极片段放在接带区11后，沿其中一个裁切线111将第一接带端6边缘裁掉以使第一接带端6与其中一个裁切线111对齐。Concretely, in order to ensure the accuracy of the splicing, it is also possible to place a specific process segment behind the splicing area 11, and cut off the edge of the first splicing end 6 along one of the cutting lines 111 to make the first splicing end 6 Align with one of the crop lines 111.
步骤S103：通过所述第二驱动装置使所述第二极片压杆将所述收卷端压紧。Step S103: Make the second pole piece pressing rod press the winding end tightly by the second driving device.
通过步骤S101-步骤S103，将极片A的特定工艺极片段放在接带区11并固定。Through step S101-step S103, the specific process pole segment of the pole piece A is placed in the joint area 11 and fixed.
步骤S104：将具有不良部分的极片B通过所述第一极片压杆2与所述主工作平台1之间形成的通道，以使所述极片B的特定工艺极片段进入所述主工作平台的接带区11上，并叠在所述极片A的特定工艺极片段上，且使所述极片B的特定工艺极片段上的极片涂布间隙留白与所述极片A的特定工艺极片段上的极片涂布间隙留白对齐叠合，其中，所述极片B的特定工艺极片段包括辊压端7和第二接带端8，所述极片B的不良部分位于所述第二接带端上。Step S104: Pass the pole piece B with defective parts through the channel formed between the first pole piece pressing bar 2 and the main working platform 1, so that the pole piece B of a specific process enters the main working platform 1 On the joint zone 11 of the working platform, and stacked on the specific process pole segment of the pole piece A, and make the pole piece coating gap on the specific process pole piece of the pole piece B leave a gap with the pole piece The pole piece coating gap on the specific process pole segment of A is aligned and stacked, wherein the specific process pole segment of the pole piece B includes a rolling end 7 and a second tape end 8, and the pole piece B’s The bad part is located on the second tape end.
具体的，检测到不良极片并裁断后，将具有不良部分的极片B通过所述第一极片压杆2与所述主工作平台1之间形成的通道，以使所述极片B的特定工艺极片段进入所述主工作平台的接带区11上，并叠在所述极片A的特定工艺极片段上，极片B的特定工艺极片段与极片A的特定工艺极片段相对应，极片涂布间隙留白9也相对应并重叠。Specifically, after the defective pole piece is detected and cut, the pole piece B with the defective part passes through the channel formed between the first pole piece pressing bar 2 and the main working platform 1, so that the pole piece B The specific process pole segment of the pole piece enters the joint zone 11 of the main working platform, and is stacked on the specific process pole segment of the pole piece A, and the specific process pole segment of the pole piece B and the specific process pole piece of the pole piece A Correspondingly, the blanks 9 in the electrode piece coating gap also correspond to and overlap.
步骤S105：通过所述第一驱动装置使所述第一极片压杆将辊压端压紧。Step S105: Using the first driving device to make the first pole piece pressing rod press the rolling end tightly.
步骤S106：沿其中一个所述裁切线裁切掉位于所述第二接带端上的所述极片B的不良部分，并保证裁切后所述第二接带端8与所述第一接带端6具有重叠部分。Step S106: Cut off the defective part of the pole piece B located on the second tape end along one of the cutting lines, and ensure that the second tape end 8 is closely aligned with the first tape end after cutting. The strap end 6 has an overlapping portion.
具体的，接带区11有三条或五条裁切线，以三条裁切线为例，从第一极片压杆2侧起依次为第一条裁切线、第二条裁切线、第三条裁切线，将极片A一侧沿第一条裁切线裁断使第一接带端6与第一条裁切线对齐，将极片B一侧沿第二条裁切线裁断使第二接带端8与第二条裁切线对齐，从而保证裁切后第二接带端8与第一接带端6具有重叠部分。Specifically, there are three or five cutting lines in the belt connection area 11. Taking the three cutting lines as an example, starting from the side of the first pole piece pressing bar 2, they are the first cutting line, the second cutting line, and the third cutting line. Cut the pole piece A side along the first cutting line so that the first tape end 6 is aligned with the first cutting line, and cut the pole piece B side along the second cutting line so that the second tape end 8 is aligned with the first cutting line The second cutting line is aligned so as to ensure that the second tape end 8 overlaps the first tape end 6 after cutting.
步骤S107：将所述第一接带端6与所述第二接带端8连接。Step S107 : Connect the first tape end 6 to the second tape end 8 .
具体的，通过步骤S104-S107，将极片A与极片B的特定工艺极片段叠合，裁切掉不良部分，将其中一个接带端向上翻起与另一个接带端连接完成接带。接带完成后重新启动辊压机继续进行极片辊压和极片收卷流程。Specifically, through steps S104-S107, the specific process pole segments of pole piece A and pole piece B are superimposed, the bad parts are cut off, and one of the tape ends is turned up to connect with the other tape end to complete the tape connection . After the splicing is completed, restart the roller press to continue the pole piece rolling and pole piece winding process.
优选的，采用高温双面胶将所述第一接带端与所述第二接带端连接。由于后续工艺涉及高温烘烤等工艺，为了保证接带的牢固性和工艺的稳定性，采用高温双面胶将所述第一接带端与所述第二接带端连接。Preferably, the first tape-connecting end is connected to the second tape-connecting end with high-temperature double-sided adhesive. Since the follow-up process involves high-temperature baking and other processes, in order to ensure the firmness of the tape connection and the stability of the process, high-temperature double-sided adhesive is used to connect the first tape connection end to the second tape connection end.
在辊压后收卷前安装和分切设备放卷纠偏前，通过所述极片接带工具将待连接的极片对齐连接，解决极片接带后续工序中的加工生产不良问题，降低报废率和制造成本。After rolling, install before winding and slitting equipment before unwinding and correcting, use the pole piece splicing tool to align and connect the pole pieces to be connected, so as to solve the problem of poor processing and production in the subsequent process of pole piece splicing and reduce scrapping rate and manufacturing cost.
对本领域的技术人员来说，可根据以上描述的技术方案以及构思，做出其它各种相应的改变以及形变，而所有的这些改变以及形变都应该属于本发明权利要求的保护范围之内。Those skilled in the art can make various other corresponding changes and deformations according to the above-described technical solutions and concepts, and all these changes and deformations should fall within the protection scope of the claims of the present invention.
Claims (10)
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