CN114883753B - Electrode plate with self-checking function and self-checking method for electric core arrangement - Google Patents
Electrode plate with self-checking function and self-checking method for electric core arrangement Download PDFInfo
- Publication number
- CN114883753B CN114883753B CN202210394330.8A CN202210394330A CN114883753B CN 114883753 B CN114883753 B CN 114883753B CN 202210394330 A CN202210394330 A CN 202210394330A CN 114883753 B CN114883753 B CN 114883753B
- Authority
- CN
- China
- Prior art keywords
- electrode
- self
- battery cells
- metal contact
- cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title abstract description 26
- 229910052751 metal Inorganic materials 0.000 claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 42
- 238000003466 welding Methods 0.000 claims abstract description 35
- 238000010892 electric spark Methods 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 7
- 230000002159 abnormal effect Effects 0.000 claims description 13
- 238000012937 correction Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 15
- 230000005856 abnormality Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract description 3
- 230000004630 mental health Effects 0.000 abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 229910052759 nickel Inorganic materials 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001795 light effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- 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
- H01M50/572—Means for preventing undesired use or discharge
- H01M50/584—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries
- H01M50/588—Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries outside the batteries, e.g. incorrect connections of terminals or busbars
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
技术领域Technical field
本发明涉及电池组装技术领域，具体公开了一种具有自检功能的电极片及对电芯排布的自检方法。The invention relates to the technical field of battery assembly, and specifically discloses an electrode sheet with a self-checking function and a self-checking method for cell arrangement.
背景技术Background technique
在锂电池的组装过程中需要将单个的电芯按要求排布好，然后使用电极片将排布完成的多个电芯进行串并联。目前较为常见的电极片是表面平整的镍片，在串并联时将其置于电芯的正负极端，然后通过点焊连接电芯正负极。During the assembly process of lithium batteries, individual cells need to be arranged as required, and then electrode sheets are used to connect the arranged cells in series and parallel. At present, the more common electrode sheets are nickel sheets with flat surfaces. They are placed on the positive and negative terminals of the battery core when connected in series and parallel, and then the positive and negative terminals of the battery core are connected by spot welding.
例如申请号为201821554638X的实用新型专利就公开了一种电池镍片，包括镍片本体，镍片本体上按间隔设有若干第一分流槽孔，第一分流槽孔的两侧为点焊区域，并且将第一分流槽孔为S形。该发明公开的电池镍片即为表面平整的电极片，在其表面开设的分流槽孔虽然能够在点焊时将电流释放，防止点焊过程中发生爆炸。但是该类型的电极片无法对电芯进行串并联连接的过程的电芯排布进行自检，一旦其中的某个电芯正负极弄错，在点焊过程中容易因短路引起电流急剧增大烧坏电芯甚至引起爆炸，从而对作业人员的身心健康以及点焊机均带来了极大的危害。For example, the utility model patent with application number 201821554638X discloses a battery nickel sheet, which includes a nickel sheet body. The nickel sheet body is provided with a number of first shunt slots at intervals, and both sides of the first shunt slot are spot welding areas. , and make the first shunt slot hole S-shaped. The battery nickel sheet disclosed in this invention is an electrode sheet with a flat surface. Although the shunt slot hole opened on the surface can release the current during spot welding, it can prevent explosion during the spot welding process. However, this type of electrode sheet cannot self-check the cell arrangement in the process of connecting cells in series and parallel. Once the positive and negative poles of one of the cells are mistaken, it is easy to cause a sharp increase in current due to short circuit during the spot welding process. A large burned battery core may even cause an explosion, which will cause great harm to the physical and mental health of the workers and the spot welding machine.
究其原因，主要是因为目前电芯的排布均是人工操作，而在人工排布过程中一方面因工人长时间疲劳操作容易发生将电芯正负极插反的情况；二方面电芯在排布时无法保证排布好的电芯电极头为一个平整的面，存在部分电芯的电极头向上凸起、部分电芯的电极头向下凹陷。因此在采用现有表面平整的电极片在对电芯进行串并联时，排布好的电芯电极头无法全部与电极片进行有效接触，只有当点焊机的机头将电极片压下与电极头焊接完成后才能完成对所有电芯的串并联，此时一旦存在某个电芯正负极搞反，由于电极片的遮挡作用使得作业人员无法及时发现，即使作业人员及时发现了也无法及时将电极片快速拆下，因此容易在对电极片点焊过程中或者点焊完成后发生电芯烧坏或发生爆炸的情况。针对现有对排布的电芯进行串并联的过程出现的上述问题，本申请设计了一种能够在点焊前即可对排布好的电芯正负极进行自检的电极片以及使用该电极片对电芯排布进行自检的方法。The reason is mainly because the arrangement of battery cells is currently done manually. During the manual arrangement process, on the one hand, it is easy for workers to insert the positive and negative poles of the battery cells in reverse due to long-term fatigue operations; on the other hand, the battery cells During the arrangement, it is impossible to ensure that the electrode heads of the arranged cells are a flat surface. Some of the electrode heads of the cells are convex upward, and some of the electrode heads of the cells are concave downward. Therefore, when the existing electrode sheets with flat surfaces are used to connect the cells in series and parallel, the electrode heads of the arranged cells cannot all make effective contact with the electrode sheets. Only when the head of the spot welding machine presses down the electrode sheets and the The series and parallel connection of all cells can only be completed after the electrode heads are welded. At this time, if the positive and negative poles of a certain cell are reversed, the operator cannot detect it in time due to the shielding effect of the electrode sheet. Even if the operator discovers it in time, he or she cannot Remove the electrode pieces quickly in time, so it is easy for the battery core to burn out or explode during the spot welding process of the electrode piece or after the spot welding is completed. In view of the above-mentioned problems that arise in the existing process of connecting arranged battery cells in series and parallel, this application has designed an electrode sheet that can self-check the positive and negative poles of the arranged battery cells before spot welding and its use. The electrode sheet is a method for self-checking the cell arrangement.
发明内容Contents of the invention
本发明的目的是针对现有电极片因整体平整，无法在点焊前通过电极片对电芯的排布进行自检的不足，从而设计了一种能够在点焊前即可对排布好的电芯正负极进行自检的电极片以及使用该电极片对电芯排布进行自检的方法。The purpose of the present invention is to solve the problem that the existing electrode sheets cannot self-check the arrangement of the battery cells through the electrode sheets before spot welding due to their overall flatness, thereby designing a device that can perform self-checking of the arrangement before spot welding. An electrode sheet for self-checking the positive and negative poles of the battery cell and a method for using the electrode sheet to self-check the battery cell arrangement.
本发明是通过以下技术方案实现的：The present invention is achieved through the following technical solutions:
一种具有自检功能的电极片，包括金属片体，所述金属片体的同一表面上呈矩形阵列状连接有多个具有弹性、且向上弯折的金属触针，所述金属触针的端部呈尖端设置。An electrode sheet with a self-checking function includes a metal sheet body. A plurality of elastic and upwardly bent metal contact pins are connected to the same surface of the metal sheet body in a rectangular array. The metal contact pins are The ends are set in a pointed shape.
作为上述方案的具体设置，所述金属片体为镀镍钢带或铜铝合金其中的一种。As a specific configuration of the above solution, the metal sheet is one of nickel-plated steel strips or copper-aluminum alloys.
作为上述方案的第一种设计方案，所述金属触针由冲压模具从金属片体上冲压成型得到，位于所述金属触针处的金属片体上冲压成型有条形孔。As a first design solution of the above solution, the metal contact pin is punched and formed from a metal sheet by a stamping die, and a strip hole is punched and formed on the metal sheet located at the metal contact pin.
作为上述方案的第二种设计方案，所述金属触针与金属片体通过焊接相连接。As a second design solution of the above solution, the metal contact pin and the metal sheet body are connected by welding.
作为上述方案的具体设置，所述金属片体的厚度设置在0.1mm-1mm范围内。As a specific setting of the above scheme, the thickness of the metal sheet is set in the range of 0.1mm-1mm.
作为上述方案的进一步设置，所述金属片体上还开设有通口。As a further arrangement of the above solution, the metal sheet body is also provided with a through hole.
本发明设计的电极片在对排布好的电芯进行点焊串并联前，将电极片盖在电芯的电极头上，由于金属触针向上弯折且具有一定的弹性，当在电极片上施加一定的压力时，即使排布的电芯电极头不处于同一平整面上，在施加压力后也能够使得所有的金属触针与对应电芯的电极头相接触，一旦其中有正负极搞错的电芯，由于金属触针较细，使得触针尖端的电阻越大，在接触瞬间能够产生电火花，此时作用人员能够立马发现对应的异常电芯并进行纠正。Before the electrode sheets designed by the present invention are spot welded in series and parallel to the arranged battery cells, the electrode sheets are covered on the electrode heads of the battery cells. Since the metal contact pins are bent upward and have a certain degree of elasticity, when placed on the electrode sheets When a certain amount of pressure is applied, even if the electrode heads of the cells are not on the same flat surface, all the metal contact pins can be brought into contact with the electrode heads of the corresponding cells after applying pressure. Once there are positive and negative electrodes, Wrong battery core, because the metal contact pin is thin, the resistance at the tip of the contact pin is greater, and electric sparks can be generated at the moment of contact. At this time, the operator can immediately find the corresponding abnormal battery core and correct it.
同时，本发明还公开了一种使用上述电极片对电芯排布进行的自检方法，包括如下步骤：At the same time, the invention also discloses a self-inspection method for battery core arrangement using the above-mentioned electrode sheet, which includes the following steps:
S1：选用与排布完成的电芯相匹配的电极片，并将电极片盖在电芯上，确保金属触针与对应电芯的电极头对齐；S1: Select the electrode sheet that matches the arranged battery core, and cover the electrode sheet on the battery core to ensure that the metal contact pin is aligned with the electrode head of the corresponding battery core;
S2：向电极片施加压下力，使得每个金属触针均与对应电芯的电极头相接触，并观察电极片与电芯电极头之间的情况；S2: Apply a pressing force to the electrode sheet so that each metal contact pin is in contact with the electrode head of the corresponding cell, and observe the situation between the electrode sheet and the electrode head of the cell;
S4：当某个电芯排布出现异常时，该电芯上的电极头会在与金属触针接触的瞬间产生电火花，作业人员则判断该电芯排布出现异常，并及时取下电极片将异常排布的电芯纠正，纠正完成后再将电极片与电芯的电极头进行点焊；S4: When there is an abnormality in the arrangement of a certain cell, the electrode head on the cell will generate an electric spark at the moment it comes into contact with the metal contact pin. The operator will judge that the cell arrangement is abnormal and remove the electrode in time. Use the sheet to correct the abnormally arranged battery cells. After the correction is completed, spot weld the electrode sheet to the electrode head of the battery core;
S5：若所有电芯均排布正常时，直接将电极片与电芯的电极头进行点焊即可。S5: If all the cells are arranged normally, just spot weld the electrode sheets to the electrode heads of the cells.
有益效果：Beneficial effects:
1）本发明设计的电极片其结构简单、制备方便，但是能够在点焊前对电芯进行排布异常自检，极大避免了现有电极片因无法对排布的电芯进行自检，而引起点焊过程中发生的电芯烧坏或爆炸的情况，对作业人员的身心健康以及点焊机的使用均具有较好的保障作用。1) The electrode sheet designed in the present invention has a simple structure and is easy to prepare, but it can self-check the abnormal arrangement of battery cells before spot welding, which greatly avoids the inability of existing electrode sheets to self-check the arranged battery cells. , which causes the battery core to burn out or explode during the spot welding process, which has a good protection effect on the physical and mental health of the workers and the use of the spot welding machine.
2）本发明依托该特殊设计的电极片公开了一种对电芯排布是否异常的自检方法，在进行自检过程中作业人员只需要将该电极片上的触针与电极头相接触，然后通过观察触针与电极头之间是否发生电火花即可快速判断电芯排布是否出现异常，并且发现排布异常的电芯可快速进行纠正。本发明公开的自检方法思路新颖、操作简单，而且无需依托相关电子检测仪器；同时，当发现异常排布的电芯还能够及时进行纠正，其有效解决了现有在对排布完成的电芯进行串并联过程中存在的问题，实际使用效果十分优异。2) The present invention relies on the specially designed electrode sheet to disclose a self-checking method for abnormal battery core arrangement. During the self-checking process, the operator only needs to contact the contact pin on the electrode sheet with the electrode head. Then by observing whether sparks occur between the contact pin and the electrode head, you can quickly determine whether the battery core arrangement is abnormal, and if you find abnormal battery core arrangement, you can quickly correct it. The self-test method disclosed by the present invention has novel ideas, simple operation, and does not need to rely on relevant electronic detection instruments; at the same time, when abnormally arranged battery cells are found, corrections can be made in time, which effectively solves the existing problem of completing the battery arrangement. The problems existing in the process of series and parallel connection of cores are solved, and the actual use effect is very excellent.
附图说明Description of drawings
为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to describe the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.
图1为本实施例1中电极片的立体结构示意图；Figure 1 is a schematic three-dimensional structural diagram of the electrode sheet in Embodiment 1;
图2为本实施例2中电极片的立体结构示意图。Figure 2 is a schematic three-dimensional structural diagram of the electrode sheet in Embodiment 2.
具体实施方式Detailed ways
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本申请保护的范围。In order to enable those in the technical field to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only These are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of protection of this application.
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图1~2，并结合实施例来详细说明本申请。It should be noted that, as long as there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present application will be described in detail below with reference to Figures 1 to 2 and in conjunction with embodiments.
实施例1Example 1
实施例1公开了一种2×4的电池组用电极片，参考附图1，该电极片包括一个由镀镍钢带制成的长条形片体1，在长条形片体1上由模具冲压成型有八个向上弯折的冲压触针101，该八个冲压触针101呈两行四列矩形阵列状布置在长条形片体1上，并且在对排布好的电芯进行串并联时，冲压触针101由于向上弯曲设置，在施加一定压力后能够使得冲压触针101的尖端能够与每个对应电芯上的电极头相接触。Embodiment 1 discloses a 2×4 battery pack electrode sheet. Referring to Figure 1, the electrode sheet includes a strip-shaped body 1 made of nickel-plated steel strip. On the strip-shaped body 1 Eight upwardly bent stamping contact pins 101 are stamped and formed by a mold. The eight stamping contact pins 101 are arranged in a rectangular array of two rows and four columns on the strip body 1, and are arranged on the arranged battery cores. When performing series-parallel connection, the punched contact pin 101 is bent upward, so that after a certain pressure is applied, the tip of the punched contact pin 101 can come into contact with the electrode tip on each corresponding cell.
由于本实施例1中的冲压触针101由于是通过模具冲压成型，因此在每个冲压触针101的位置处均开设有一个与冲压触针101相匹配的条形孔102，冲压触针101在受到外力作用下能够因自身弹性作用被压向对应的条形孔102中，然后再对其位置进行点焊连接。Since the stamped contact pins 101 in this embodiment 1 are stamped and formed by a mold, a strip hole 102 matching the stamped contact pin 101 is opened at the position of each stamped contact pin 101. The stamped contact pin 101 Under the action of external force, it can be pressed into the corresponding strip hole 102 due to its own elasticity, and then its position is connected by spot welding.
使用本实施例1公开的电极片在对排布好的电芯进行串并联点焊前，将电极片盖在排布好的电芯上，然后用力将电极片向下按压，使得每个冲压触针101的尖端与对应电芯上的电极头相接触，此时整个排布好的电芯通过电极片进行了预先串联或并联的电路接通。当存在某个电芯正负极搞反时，由于电芯的内阻很小，此时电压差集中在对应冲压触针101的尖部，并会产生电火花，此时相关作业人员能够立马察觉存在排布异常的电芯，因此作业人员能够及时取下电极片，再将异常排布的电芯纠正，从而完成了对电芯排布的自检过程；当所有电芯排布无异常时，压下电极片上的冲压触针101不会产生电火花，然后接下来可直接通过点焊机将电极片与电芯的电极头进行挨个焊接即可。Before using the electrode sheet disclosed in this embodiment 1 for series and parallel spot welding of the arranged battery cores, cover the arranged battery core with the electrode sheet, and then press the electrode sheet down with force, so that each punched The tip of the contact pin 101 is in contact with the electrode head on the corresponding battery core. At this time, the entire arranged battery core is connected in series or parallel circuit through the electrode sheet. When the positive and negative poles of a certain battery core are reversed, because the internal resistance of the battery core is very small, the voltage difference is concentrated at the tip of the corresponding stamping contact pin 101, and electric sparks will be generated. At this time, the relevant workers can immediately After detecting the existence of abnormally arranged battery cells, the operator can promptly remove the electrode sheets and correct the abnormally arranged battery cells, thereby completing the self-inspection process of the battery cell arrangement; when all battery cells are arranged without abnormality When pressing down the stamped contact pin 101 on the electrode sheet, no sparks will be generated, and then the electrode sheet and the electrode head of the battery core can be directly welded one by one through a spot welder.
另外，需要说明的是本实施例1中的冲压触针尖端设置的越细，使得冲压触针尖端的电阻越大，当冲压触针101与电极头的接触瞬间使得产生电火花等声光效果更加明显，更容易被作业人员发觉。因此在具体设计过程中，可尽量将长条形片体1的厚度设置在0.1mm-1mm之间，并控制冲压成型的冲压触针101的宽度尽量设置在均不超过5mm，保证冲压触针足够细小，在对电芯自检过程中产生的电火花更加明显，从而能够让作业人员立马察觉。In addition, it should be noted that the thinner the tip of the stamping stylus in Embodiment 1 is, the greater the resistance of the tip of the stamping stylus will be. When the stamping stylus 101 comes into contact with the electrode head, the moment the stamping stylus 101 comes into contact with the electrode head, sound and light effects such as electric sparks will be generated. It is more obvious and easier to be detected by operators. Therefore, in the specific design process, the thickness of the long strip body 1 can be set as much as possible between 0.1mm and 1mm, and the width of the stamped contact pins 101 should be controlled to be no more than 5mm to ensure that the stamped contact pins are It is small enough, and the sparks generated during the self-inspection of the battery core are more obvious, allowing operators to detect it immediately.
最后，为了方便作业人员观察电极片下方电芯情况以及节省原材料，还在长条形片体1的非冲压触针101位置处开设有多个通口103。Finally, in order to facilitate the operator to observe the condition of the cells under the electrode sheet and save raw materials, a plurality of through holes 103 are also opened at the non-stamped contact pins 101 of the strip body 1 .
实施例2Example 2
实施例2公开了一种2×3的电池组用电极片，参考附图2，该电极片包括一个由铜铝合金材料制成的长条形片体2，在长条形片体2的上表面焊接有六个向上弯折可回弹的焊接触针201，其焊接触针201也由铜铝合金材料制备而成，并且该六个焊接触针201呈两行三列矩形阵列状布置在长条形片体2上。在对排布好的电芯进行串并联时，在向电极片施加一定压力后，焊接触针201由于向上弯折设置，使得焊接触针201的尖端能够与每个对应电芯上的电极头相接触。Embodiment 2 discloses a 2×3 battery pack electrode sheet. Referring to Figure 2, the electrode sheet includes a strip-shaped sheet body 2 made of copper-aluminum alloy material. Six upwardly bendable and resilient soldering contact pins 201 are welded on the upper surface. The soldering contact pins 201 are also made of copper-aluminum alloy materials, and the six soldering contact pins 201 are arranged in a rectangular array of two rows and three columns. On the long strip body 2. When the arranged cells are connected in series and parallel, after a certain pressure is applied to the electrode sheets, the welding contact pins 201 are bent upward so that the tips of the welding contact pins 201 can contact the electrode heads on each corresponding cell. contact.
本实施例2设计的电极片在对排布好的电芯进行点焊前，将整个电极片盖在排布好的电芯上，并且将每个焊接触针201的尖端对齐对应的电芯电极头设置，然后对电极片施加一定的按压力，由于焊接触针201具有一定的回弹作用，从而使得每个焊接触针201的尖端与对应电芯上的电极头相接触，此时整个排布好的电芯通过电极片进行了预先串联或并联的电路接通。同理，当存在某个电芯正负极搞反时，由于电芯的内阻很小，此时电压差集中在对应焊接触针201的尖部，并产生电火花，此时相关作业人员能够立马察觉存在排布异常的电芯，并及时取下电极片将异常的电芯纠正，从而完成了对电芯排布的自检过程；当所有电芯排布无异常时，压下电极片不会产生电火花，然后接下来通过点焊机将电极片与电芯的电极头进行挨个焊接即可。Before spot welding the arranged battery cores of the electrode sheet designed in this embodiment 2, the entire electrode sheet is covered on the arranged battery cores, and the tip of each welding contact pin 201 is aligned with the corresponding battery core. The electrode head is set, and then a certain pressing force is applied to the electrode sheet. Since the welding contact pin 201 has a certain rebound effect, the tip of each welding contact pin 201 is in contact with the electrode head on the corresponding battery core. At this time, the entire The arranged cells are connected in series or parallel circuits through the electrode sheets. In the same way, when the positive and negative poles of a certain battery core are reversed, because the internal resistance of the battery core is very small, the voltage difference is concentrated at the tip of the corresponding soldering contact pin 201, and sparks are generated. At this time, the relevant workers It can immediately detect the existence of abnormal battery cells, and promptly remove the electrode sheets to correct the abnormal battery cells, thus completing the self-inspection process of the battery cell arrangement; when all battery cells are arranged without abnormality, press down the electrodes The electrode sheets will not produce sparks, and then the electrode sheets and the electrode heads of the battery core can be welded one by one through a spot welder.
此外，本实施例2中的焊接触针201也同理设置越细越好，焊接触针201设置的越细，当焊接触针201与电极头接触的瞬间使得产生电火花等声光效果更加明显，更容易被作业人员发觉。最后，为了方便作业人员观察电极片下方电芯情况以及节省原材料，还可在长条形片体1的非焊接触针201位置处开设有多个通口202。In addition, the welding contact pins 201 in this embodiment 2 are similarly set to be as thin as possible. The welding contact pins 201 are set to be thinner. When the welding contact pins 201 come into contact with the electrode head, the sound and light effects such as electric sparks will be more pronounced at the moment. Obviously, it is easier to be detected by workers. Finally, in order to facilitate the operator to observe the condition of the cells under the electrode sheet and save raw materials, multiple through holes 202 can also be opened at the positions of the non-soldered contact pins 201 of the strip body 1 .
实施例3Example 3
实施例3公开了一种使用实施例1或实施例2中的电极片对排布完成的电芯进行自检的方法，其包括如下步骤：Embodiment 3 discloses a method of using the electrode sheet in Embodiment 1 or 2 to perform self-test on the arranged battery cells, which includes the following steps:
S1：选用一个与排布完成的电芯相匹配的电极片，并将电极片盖在排布完成的电芯上，并保证每个触针与对应电芯的电极头对齐；S1: Select an electrode sheet that matches the arranged battery core, cover the electrode sheet on the arranged battery core, and ensure that each contact pin is aligned with the electrode head of the corresponding battery core;
S2：向电极片施压一定的压下力，使得每个触针均与对应电芯的电极头相接触，并观察电极片与电芯电极头之间的情况；S2: Apply a certain depressing force to the electrode sheet so that each contact pin is in contact with the electrode head of the corresponding cell, and observe the situation between the electrode sheet and the electrode head of the cell;
S3：若存在某个电芯排布出现异常时，该电芯上的电极头会在与触针接触的瞬间，因短路使得电压差集中在对应触针的尖端，并产生电火花等声光效果，此时作业人员可立马判断该电芯排布出现异常，并及时取下电极片将异常排布的电芯纠正，纠正完成后即可将电极片与电芯的电极头进行点焊，从而完成电芯的串并联过程；S3: If there is an abnormality in the arrangement of a certain cell, the moment the electrode head on the cell comes into contact with the contact pin, the voltage difference will be concentrated on the tip of the corresponding contact pin due to short circuit, and sound and light such as electric sparks will be generated. As a result, the operator can immediately determine that the battery cell arrangement is abnormal, and promptly remove the electrode sheets to correct the abnormally arranged battery cells. After the correction is completed, the electrode sheets and the electrode heads of the battery cells can be spot welded. Thereby completing the series and parallel connection process of battery cells;
S4：若所有电芯均排布正常时，可直接通过点焊机将电极片与电芯的电极头进行点焊，完成电芯的串并联过程。S4: If all the cells are arranged normally, the electrode sheets and the electrode heads of the cells can be spot welded directly through a spot welding machine to complete the series-parallel connection process of the cells.
以上仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. Inside.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210394330.8A CN114883753B (en) | 2022-04-15 | 2022-04-15 | Electrode plate with self-checking function and self-checking method for electric core arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210394330.8A CN114883753B (en) | 2022-04-15 | 2022-04-15 | Electrode plate with self-checking function and self-checking method for electric core arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114883753A CN114883753A (en) | 2022-08-09 |
| CN114883753B true CN114883753B (en) | 2024-02-27 |
Family
ID=82669092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210394330.8A Active CN114883753B (en) | 2022-04-15 | 2022-04-15 | Electrode plate with self-checking function and self-checking method for electric core arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114883753B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1186821A (en) * | 1997-09-09 | 1999-03-30 | Matsushita Electric Ind Co Ltd | Sealed-type battery |
| WO2004004961A2 (en) * | 2002-07-03 | 2004-01-15 | Fronius International Gmbh | Electrode protection device, spot-welding tool and resistance welding method |
| JP2004082271A (en) * | 2002-08-27 | 2004-03-18 | Honda Motor Co Ltd | Electrode for electric discharge machining and manufacturing method |
| GB201214595D0 (en) * | 2011-12-15 | 2012-10-03 | Oxis Energy Ltd | Connecting contact leads to lithium-based electrodes |
| CN105810766A (en) * | 2016-05-09 | 2016-07-27 | 山东拜科通新材料科技有限公司 | Current leading-out device with metal foil and composite conductive bands |
| CN207081791U (en) * | 2017-06-19 | 2018-03-09 | 江苏英耐杰新能源有限公司 | A kind of battery module battery core measurement jig |
| CN108352489A (en) * | 2015-10-22 | 2018-07-31 | 日产自动车株式会社 | Group battery and the manufacturing method for organizing battery |
| CN209001006U (en) * | 2018-11-20 | 2019-06-18 | 创呈工业设计（上海）有限公司 | A kind of electrode connecting piece for lithium ion battery mould group |
| CN110828762A (en) * | 2019-11-05 | 2020-02-21 | 联动天翼新能源有限公司 | Detection welding device and detection welding method for cylindrical battery module |
| CN217468695U (en) * | 2022-04-15 | 2022-09-20 | 安徽超锂电子科技有限公司 | Electrode plate for battery pack with self-checking function |
-
2022
- 2022-04-15 CN CN202210394330.8A patent/CN114883753B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1186821A (en) * | 1997-09-09 | 1999-03-30 | Matsushita Electric Ind Co Ltd | Sealed-type battery |
| WO2004004961A2 (en) * | 2002-07-03 | 2004-01-15 | Fronius International Gmbh | Electrode protection device, spot-welding tool and resistance welding method |
| JP2004082271A (en) * | 2002-08-27 | 2004-03-18 | Honda Motor Co Ltd | Electrode for electric discharge machining and manufacturing method |
| GB201214595D0 (en) * | 2011-12-15 | 2012-10-03 | Oxis Energy Ltd | Connecting contact leads to lithium-based electrodes |
| CN108352489A (en) * | 2015-10-22 | 2018-07-31 | 日产自动车株式会社 | Group battery and the manufacturing method for organizing battery |
| CN105810766A (en) * | 2016-05-09 | 2016-07-27 | 山东拜科通新材料科技有限公司 | Current leading-out device with metal foil and composite conductive bands |
| CN207081791U (en) * | 2017-06-19 | 2018-03-09 | 江苏英耐杰新能源有限公司 | A kind of battery module battery core measurement jig |
| CN209001006U (en) * | 2018-11-20 | 2019-06-18 | 创呈工业设计（上海）有限公司 | A kind of electrode connecting piece for lithium ion battery mould group |
| CN110828762A (en) * | 2019-11-05 | 2020-02-21 | 联动天翼新能源有限公司 | Detection welding device and detection welding method for cylindrical battery module |
| CN217468695U (en) * | 2022-04-15 | 2022-09-20 | 安徽超锂电子科技有限公司 | Electrode plate for battery pack with self-checking function |
Non-Patent Citations (2)
| Title |
|---|
| General Approach for Inline Electrode Wear Monitoring at Resistance Spot Welding;Christian Mathiszik 等;Processes;第9卷(第4期);第685页 * |
| 锂离子电池的安全性及其原位测定;杨立, 王保峰, 邱亚丽;科学通报(第17期);第35-39页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114883753A (en) | 2022-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104009198B (en) | Lug jockey and there is the battery pack of lug jockey | |
| CN202212722U (en) | Positioning jig | |
| CN102044701A (en) | Battery pack and method of manufacturing the same | |
| JP2021526303A (en) | Busbar for battery cell connection, battery pack and its manufacturing method | |
| CN105336813A (en) | Manufacturing method for solar cell module | |
| KR20070025392A (en) | Secondary battery with no welding connection | |
| CN217468695U (en) | Electrode plate for battery pack with self-checking function | |
| CN114883753B (en) | Electrode plate with self-checking function and self-checking method for electric core arrangement | |
| CN211102380U (en) | Positive electrode welding clamp | |
| WO2024065362A1 (en) | Electrochemical apparatus and electric device | |
| KR100831131B1 (en) | Connecting structure of conductive connecting tab of battery | |
| WO2021249341A1 (en) | Lithium ion battery and terminal device comprising lithium ion battery | |
| KR20160069188A (en) | Apparatus for Inspection of Welding State of Clad to Battery Cell | |
| EP3561908A1 (en) | Battery and electrode conductor thereof | |
| JP3631110B2 (en) | battery pack | |
| JP2008066048A (en) | Lithium-ion secondary battery | |
| CN213986758U (en) | Current tracing clamp for primary battery discharge performance testing equipment | |
| CN205355136U (en) | A positioner for spot welding nickel strap | |
| JPH06223803A (en) | Battery pack | |
| JP3263559B2 (en) | Method of welding lead plate to battery electrode | |
| CN205016609U (en) | Laminate polymer battery utmost point ear switching structure | |
| CN113839111B (en) | A lithium ion battery and a terminal device including the lithium ion battery | |
| CN213213693U (en) | Camera module detection tool | |
| JP2016022508A (en) | Resistance welding method and resistance welding structure | |
| CN221080269U (en) | Battery protection board and battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A self checking electrode with self checking function and self checking method for battery cell layout Granted publication date: 20240227 Pledgee: China Construction Bank Co.,Ltd. Wuhe Sub branch Pledgor: Anhui Chaoli Electronic Technology Co.,Ltd. Registration number: Y2025980001378 |