Ocv detection method and detection device

Abstract

The application provides an OCV detection method and a detection device. The OCV detection method comprises OCV detection of to-be-detected incoming materials, transmission of the to-be-detected battery incoming materials to an OCV detection station for detection, and transmission of all the incoming materials to a replacement station when the detection result is unqualified. The application also provides OCV detection of transfer incoming materials, OCV detection of the transfer battery incoming materials at a transfer station, and the number of the detected transfer battery incoming materials being one or more. The application also provides one-time replacement of batteries, transfer of OCV detection defective products in the to-be-detected battery incoming materials to the transfer station, and transfer of OCV detection qualified products in the transfer battery incoming materials to the replacement station for replacement. In this way, in addition to OCV detection of conventional to-be-detected battery incoming materials, OCV detection of transfer battery incoming materials can also be performed, so that more batteries can be detected in a unit of time, and the detection efficiency is higher.

Description

Technical Field

[0001] This application relates to the field of OCV detection technology, and in particular to an OCV detection method and a detection device that can implement the OCV detection method. Background Technology

[0002] After the battery cells have completed formation, capacity testing, and labeling processes, they also need to undergo OCV (Open Circuit Voltage) testing. The OCV test can obtain parameters such as the K value (the voltage drop of the battery cell per unit time, reflecting the self-discharge rate of the battery cell), current, voltage, and capacity of the battery cell, so as to screen out battery cells with unqualified electrochemical parameters and ensure the quality of each batch of battery cells.

[0003] Currently, the battery OCV testing process is as follows: batches of battery cells are transported to the OCV testing station via a conveyor line. The first batch of battery cells that have completed testing is stored in a transfer station. Then, the second batch of battery cells is transported to the OCV testing station for testing. If any defective products are found, the good products from the first batch in the transfer station are added to the second batch to ensure that all battery cells in the second batch pass the test. Then, they are transported to the next station. As a result, the current OCV testing method has relatively low testing efficiency. Summary of the Invention

[0004] The purpose of this application is to provide an OCV detection method and detection device, which aims to improve the technical problem of low detection efficiency in current OCV detection methods.

[0005] The technical solution adopted in the embodiments of this application is:

[0006] In a first aspect, embodiments of this application provide an OCV detection method, including:

[0007] Incoming materials undergo OCV testing. The batteries to be tested are transferred to the OCV testing station for testing. If the test result is unqualified, all incoming materials are transferred to the replacement station.

[0008] OCV inspection of incoming transshipment materials: OCV inspection is performed on incoming transshipment batteries at the transshipment station. The number of incoming transshipment batteries inspected is one or more.

[0009] The battery replacement process involves transferring defective OCV-tested batteries from the incoming materials to the transfer station, and transferring good OCV-tested batteries from the transfer station to the replacement station for replacement.

[0010] The technical solutions described in this application have at least the following technical effects or advantages:

[0011] The OCV testing method provided in this application performs OCV testing on incoming battery materials and also on incoming intermediate battery materials. This effectively establishes two OCV testing stations during battery production, and these two stations operate independently. To ensure a stable output of batches of good products from the incoming materials, good products from the intermediate battery materials can be replaced with defective products from the incoming battery materials. Thus, in addition to performing OCV testing on regular incoming battery materials, OCV testing can also be performed on intermediate battery materials, allowing for the testing of more batteries per unit time and resulting in higher testing efficiency.

[0012] In some embodiments, the OCV detection method further includes:

[0013] The incoming material information detection involves transmitting the battery to be tested to the replacement station for information collection. If the information collection result is unqualified, all incoming materials are stopped at the replacement station.

[0014] By adopting the above technical solution, the incoming battery material can also be subjected to corresponding information detection. Batteries that fail the information collection will be kept at the replacement station and wait to be replaced.

[0015] In some embodiments, the OCV detection method further includes:

[0016] Information detection of incoming transfer materials: Information is collected on incoming transfer batteries at the transfer station. The number of incoming transfer batteries for which information is collected is one or more.

[0017] The battery replacement process involves transferring non-conforming batteries from the incoming materials to a transfer station, and transferring conforming batteries from the transfer station to a replacement station for replacement.

[0018] By adopting the above technical solution, the incoming transit batteries can also be inspected, and the qualified transit batteries can be used to replace the unqualified ones in the incoming batteries to be tested.

[0019] In some embodiments, during the OCV detection step of the incoming transshipment materials, defective incoming batteries at the transshipment station are categorized and stored.

[0020] By adopting the above technical solution, defective batteries arriving at the transfer station can be classified to avoid confusion with untested batteries and facilitate replacement with defective batteries awaiting testing.

[0021] In some embodiments, during the step of detecting incoming transfer materials, defective incoming transfer batteries at the transfer station are categorized and stored.

[0022] By adopting the above technical solution, defective batteries arriving at the transfer station can be classified to avoid confusion with untested batteries and facilitate replacement with defective batteries awaiting testing.

[0023] Secondly, embodiments of this application also provide a detection device for implementing the OCV detection method described above, the detection device comprising:

[0024] A transmission line for conveying the battery to be tested, the transmission line having an OCV detection station and a replacement station;

[0025] The transit station stores multiple transit batteries.

[0026] The first OCV detection device is used to perform OCV detection on the incoming battery material to be tested.

[0027] The second OCV detection device is used to perform OCV detection on incoming batteries.

[0028] The transfer device is used to replace incoming materials between the battery cell to be tested and the intermediate battery.

[0029] The first OCV detection device is located at the OCV detection station, the transfer device moves back and forth between the transfer station and the replacement station, and the second OCV detection device is located on the transfer device and can move back and forth between the transfer station and the replacement station.

[0030] The testing equipment provided in this application embodiment transmits the battery materials to be tested to the OCV testing station and performs replacement work via a transmission line. A transfer station stores multiple transfer battery materials. A first OCV testing device performs OCV testing on each battery material to be tested, a second OCV testing device tests the transfer battery materials, and a transfer device is used to replace the battery materials to be tested with the transfer battery materials. This allows for rapid material output from the transmission line, resulting in higher efficiency.

[0031] In some embodiments, the first OCV detection device includes a support and a plurality of first test probe mechanisms slidably connected to the support along a first direction.

[0032] By adopting the above technical solution, each first test probe mechanism corresponds to a battery material to be tested and is tested with it. At the same time, the spacing between each first test probe mechanism can be adjusted according to the battery materials to be tested of different sizes and specifications.

[0033] In some embodiments, the transfer device includes a first linear module, a second linear module slidably connected to the first linear module, and a claw mechanism disposed on the second linear module. One end of the first linear module extends to the replacement station and the other end extends to the transfer station. The second linear module reciprocates relative to the first linear module along a first direction, and the claw mechanism reciprocates relative to the second linear module along a second direction. The first direction is perpendicular to the second direction.

[0034] By adopting the above technical solution, the second linear module drives the gripper mechanism to reciprocate between the transfer station and the replacement station, so as to facilitate the replacement of the battery to be tested with the battery to be transferred. The gripper mechanism moves reciprocally relative to the second linear module in the second direction to grasp the battery to be tested or the battery to be transferred.

[0035] In some embodiments, the second OCV detection device includes a second test probe mechanism disposed on the second linear module.

[0036] By adopting the above technical solution, the second test probe mechanism is used to detect incoming transfer batteries, and the second test probe mechanism can reciprocate in the second direction.

[0037] In some embodiments, the detection device further includes an information collection mechanism, which is mounted on the transfer device and is capable of reciprocating between the transfer station and the replacement station.

[0038] By adopting the above technical solution, the information collection agency is used to detect the information of the incoming battery material to be tested and the information of the incoming battery material in transit.

[0039] In some embodiments, the transfer station includes a storage box and a tray mechanism for supporting the storage box, wherein a plurality of storage cells are formed within the storage box.

[0040] By adopting the above technical solution, the storage box is used to place the incoming transfer batteries, the tray mechanism is used to support the storage box, and the incoming transfer batteries are placed in the corresponding storage cell.

[0041] In some embodiments, the pallet mechanism includes at least two pallet bodies stacked on top of each other and a slide rail structure disposed between any two adjacent pallet bodies, wherein one pallet body slides relative to the other pallet body along the guide direction of the slide rail structure.

[0042] By adopting the above technical solution, one pallet body slides relative to the other pallet body along the guide direction of the slide rail structure, so that the storage box can be extended in space, which facilitates loading and unloading of materials into the storage box.

[0043] In some embodiments, the slide rail structure includes a guide rail disposed on one of the tray bodies and a slider disposed on the other tray body, the slider being slidably connected to the guide rail.

[0044] By adopting the above technical solution, two adjacent tray bodies can slide relative to each other under the sliding action of the slider and the guide rail. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A flowchart of the OCV detection method provided in the embodiments of this application;

[0047] Figure 2 Another flowchart of the OCV detection method provided in the embodiments of this application;

[0048] Figure 3 Another flowchart of the OCV detection method provided in the embodiments of this application;

[0049] Figure 4 This is a schematic diagram of the structure of the detection device provided in some embodiments of this application;

[0050] Figure 5 This is a schematic diagram of the structure of a transfer station for a testing device provided in some embodiments of this application;

[0051] Figure 6 Left view of the transfer station of the testing equipment provided in some embodiments of this application.

[0052] The following are the labeling elements in the figure:

[0053] 100. Testing equipment;

[0054] 10. Transmission line; 10a. OCV inspection station; 10b. Replacement station;

[0055] 20. Transfer station; 21. Storage box; 22. Pallet mechanism; 21a. Storage cell; 221. Pallet body; 222. Slide rail structure; 2221. Guide rail; 2222. Slider;

[0056] 30. First OCV detection device; 31. Support; 32. First test probe mechanism;

[0057] 40. Second OCV detection device; 41. Second test probe mechanism;

[0058] 50. Transfer device; 51. First linear module; 52. Second linear module; 53. Claw mechanism;

[0059] 60. Information collection agencies;

[0060] First direction X; second direction Y. Detailed Implementation

[0061] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0063] In the description of the embodiments of this application, the terms "length", "width", "thickness", "inner", "outer", "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0064] The terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. For example, "first guide member" and "second guide member" are merely used to distinguish different guide members and do not limit their order. A first guide member may also be named a second guide member, and a second guide member may also be named a first guide member, without departing from the scope of the various described embodiments. Furthermore, the terms "first," "second," etc., do not imply that the indicated features must be different.

[0065] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. "Multiple" means at least two, that is, two or more.

[0066] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0067] It should be noted that in this application, the words "in some embodiments," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in some embodiments," "exemplarily," or "for example" should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of words such as "in some embodiments," "exemplarily," and "for example" is intended to present related concepts in a specific manner, meaning that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of this application. The appearance of the above words in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0068] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments.

[0069] After the battery cells have completed formation, capacity testing, and labeling processes, they also need to undergo OCV (Open Circuit Voltage) testing. The OCV test can obtain parameters such as the K value (the voltage drop of the battery cell per unit time, reflecting the self-discharge rate of the battery cell), current, voltage, and capacity of the battery cell, so as to screen out battery cells with unqualified electrochemical parameters and ensure the quality of each batch of battery cells.

[0070] Typically, the OCV (Optical Characteristic Verification) inspection process on a production line involves conveying batches of battery cells to the OCV inspection station via a conveyor line. The first batch of inspected cells is stored in a transfer station, and the number and location of good cells are recorded. The next batch of cells is then conveyed to the OCV inspection station for testing. If any defective cells are found, they are added to the second batch from the good cells in the transfer station to ensure that all cells in the second batch pass inspection before being conveyed to the next station. In this way, if any defective cells are found in the next batch, they must be replaced with good cells from the previous batch, thus keeping the overall number of battery cells tested unchanged. This OCV inspection method has relatively low inspection efficiency.

[0071] In view of this, this application provides an OCV testing method that adds OCV testing to incoming materials at transit stations. Specifically, OCV testing is performed on incoming batteries at transit stations, thus avoiding interference with OCV testing of incoming batteries to be tested on the production line. Furthermore, to ensure a stable output of batches of good products from the incoming materials to be tested, good products from the transit batteries can be replaced with defective products from the incoming batteries to be tested. This increases the total number of batteries that can be OCV tested per unit time, resulting in higher testing efficiency.

[0072] Please refer to Figure 1 , Figure 1 A flowchart of the OCV detection method provided in the embodiments of this application.

[0073] The OCV detection method includes:

[0074] S001. Incoming material OCV testing: The battery material to be tested is transferred to the OCV testing station for testing. If the test result is unqualified, all incoming materials are transferred to the replacement station.

[0075] The incoming batteries for testing can represent a significant portion of the total battery supply. They are transported via a conveyor line to the OCV testing station and the replacement station. At the OCV testing station, batteries that pass the test are moved to the next station. Batteries that fail the test are then moved to the replacement station to await replacement.

[0076] S002, OCV detection of incoming transfer materials: OCV detection is performed on incoming transfer batteries at the transfer station. The number of incoming transfer batteries to be detected is one or more.

[0077] Intermediate battery incoming materials are those from different batches or on different transmission lines than the batteries to be tested. For example, they could be batteries transported to the intermediate station via another transmission line, or they could be batteries stored directly at the intermediate station, used to replenish or replace defective products among the incoming batteries to be tested. In this step, one OCV test can detect one or more intermediate battery incoming materials.

[0078] A transfer station can be a workstation or device used for storing or transferring batteries.

[0079] S003. Battery replacement: Transfer the OCV-defective batteries from the incoming materials to the transfer station, and transfer the OCV-good batteries from the incoming materials to the replacement station for replacement.

[0080] In this step, the batteries at the transfer station and the replacement station are swapped to replenish the defective OCV-tested batteries in the incoming materials.

[0081] It should be noted that steps S001 and S002 are not sequential in execution, and in some embodiments, steps S001 and S002 can be executed synchronously.

[0082] The OCV testing method provided in this application performs OCV testing on incoming battery materials and also on incoming intermediate battery materials. This effectively establishes two OCV testing stations during battery production, and these two stations operate independently. To ensure a stable output of batches of good products from the incoming materials, good products from the intermediate battery materials can be replaced with defective products from the incoming battery materials. Thus, in addition to performing OCV testing on regular incoming battery materials, OCV testing can also be performed on intermediate battery materials, allowing for the testing of more batteries per unit time and resulting in higher testing efficiency.

[0083] Please refer to Figure 2 In some embodiments, the OCV detection method includes:

[0084] S004. Information detection of incoming materials to be tested: The incoming battery material to be tested is transferred to the replacement station for information collection. If the information collection result is unqualified, all incoming materials are stopped at the replacement station.

[0085] Here, information detection can include batch information, production date information, type information, etc. of the battery to be tested. If the information collection results are not up to standard, the battery to be tested will also be listed as defective. The current batch of battery to be tested will be placed at the replacement station to wait for replacement.

[0086] It should be noted that steps S004 and S001 are not sequentially executed, and in some embodiments, steps S001 and S004 can be executed synchronously.

[0087] For example, in one embodiment, OCV testing and information testing can be performed simultaneously on the current batch of batteries to be tested. Any battery that fails any test will be identified as a defective product and wait for good batteries at the transfer station to replace it.

[0088] Please refer to Figure 3 In some embodiments, the OCV detection method includes:

[0089] S005, Information detection of incoming transfer materials: Information is collected on incoming transfer batteries at the transfer station. The number of incoming transfer batteries for which information is collected is one or more.

[0090] Similarly, information detection can include batch information, production date information, and type information of incoming batteries. Products failing information collection are also classified as defective. When collecting information on incoming batteries, the number of batteries collected can be one or more, depending on actual replenishment needs.

[0091] S006. Secondary battery replacement: Transfer the non-conforming products from the incoming materials to the transfer station, and transfer the qualified products from the transfer station to the replacement station for replacement.

[0092] In this step, the batteries at the transfer station and the replacement station are swapped to replenish the defective products detected in the incoming battery information.

[0093] It should be noted that steps S002 and S005 are not sequential in execution, and in some embodiments, steps S002 and S005 can be executed synchronously.

[0094] For example, in one embodiment, OCV testing and information testing can be performed simultaneously on the current batch of transit batteries. Batteries that fail any test will be classified as defective, while good batteries will be used for replacement.

[0095] Similarly, steps S003 and S006 are not sequential in execution, and in some embodiments, steps S003 and S006 can be executed synchronously.

[0096] For example, in one embodiment, if one or more of the incoming batteries to be tested are identified as defective products that simultaneously meet the requirements of OCV detection and information detection, and if one or more of the incoming batteries in transit are identified as good products that simultaneously meet the requirements of OCV detection and information detection, then only one battery replacement is required, which is equivalent to steps S003 and S006 being executed simultaneously.

[0097] In one embodiment, during the OCV inspection step of incoming transshipment materials, defective incoming batteries at the transshipment station are categorized and stored.

[0098] Understandably, the incoming batteries at the transfer station can be divided into the following categories: first, those that pass OCV testing and have completed the testing; and second, those that fail OCV testing and have completed the testing.

[0099] To prevent confusion in the receiving and handling of batteries at the transfer station, defective products need to be categorized. After categorization, the remaining products are considered good. For example, the transfer station can be divided into a defective product area and a good product area. Defective products detected by OCV testing are placed in the defective product area, and good products detected by OCV testing are placed in the good product area.

[0100] In one embodiment, during the step of detecting incoming materials at the transit station, defective incoming batteries are categorized and stored.

[0101] Understandably, the incoming batteries at the transfer station can be divided into the following categories: first, those that pass the information inspection and have completed the inspection; and second, those that fail the information inspection and have completed the inspection.

[0102] To prevent confusion in the receiving and handling of batteries at the transfer station, defective products need to be categorized. After categorization, the remaining products will all be considered good. For example, the transfer station can be divided into defective and good product areas. Defective products detected by information detection can be placed in the defective product area, and good products detected by information detection can be placed in the good product area.

[0103] In another embodiment, batteries that fail either the OCV inspection or the information inspection are considered defective, while batteries that pass both inspections are considered good. Therefore, in this embodiment, when dividing the transfer station into defective and good product areas, defective products after both inspections, as well as those after only one inspection, are placed in the defective product area, while good products after both inspections are placed in the good product area.

[0104] Please refer to Figure 4This application embodiment also provides a testing device 100 for implementing the above-described OCV testing method. The testing device 100 includes a transmission line 10, a transfer station 20, a first OCV testing device 30, a second OCV testing device 40, and a transfer device 50. The transmission line 10 is used to transport incoming battery materials to be tested and has an OCV testing station 10A and a replacement station 10b. The transfer station 20 stores multiple incoming battery materials. The first OCV testing device 30 is used to perform OCV testing on the incoming battery materials to be tested. The second OCV testing device 40 is used to perform OCV testing on the incoming battery materials. The transfer device 50 is used to replace the incoming battery materials to be tested with the incoming battery materials. The first OCV testing device 30 is located at the OCV testing station 10A, and the transfer device 50 reciprocates between the transfer station 20 and the replacement station 10b. The second OCV testing device 40 is located on the transfer device 50 and can reciprocate between the transfer station 20 and the replacement station 10b.

[0105] The testing equipment 100 provided in this embodiment transmits the battery to be tested to the OCV testing station 10A via a transmission line 10 and performs replacement work. A transfer station 20 stores multiple transfer battery materials. A first OCV testing device 30 performs OCV testing on each battery to be tested, a second OCV testing device 40 tests the transfer battery materials, and a transfer device 50 performs material replacement between the battery to be tested and the transfer battery materials. This allows for rapid material output from the transmission line 10, resulting in higher efficiency.

[0106] Please refer to Figure 4 In some embodiments, the first OCV detection device 30 includes a support 31 and a plurality of first test probe mechanisms 32 slidably connected to the support 31 along a first direction X.

[0107] Understandably, the bracket 31 serves to fix and support the device. The sliding connection between each first test probe mechanism 32 and the fixing mechanism can be a direct sliding connection or an indirect sliding connection.

[0108] For example, a groove extending along the first direction X is provided on the bracket 31, and each first test probe mechanism 32 is provided with a protrusion that matches the groove. The first test probe mechanism 32 slides relative to the bracket 31 by sliding the protrusion in the groove, and the sliding direction and sliding distance are unrestricted.

[0109] For example, a slide rail is provided on the bracket 31, and a slider is provided on each of the first test probe mechanisms 32 that is slidably connected to the slide rail. The slider and the slide rail slide together to achieve relative sliding between each of the first test probe mechanisms 32 and the bracket 31. Furthermore, the sliding direction and sliding distance are unrestricted.

[0110] Here, the first direction X is the arrangement direction of the incoming batteries, which can be any one of the width direction, length direction, or thickness direction of the batteries.

[0111] With this setup, each first test probe mechanism 32 corresponds to a battery to be tested and is tested accordingly. At the same time, the spacing between each first test probe mechanism 32 can be adjusted according to the different sizes and specifications of the batteries to be tested.

[0112] Please refer to Figure 4 In some embodiments, the transfer device 50 includes a first linear module 51, a second linear module 52 slidably connected to the first linear module 51, and a claw mechanism 53 disposed on the second linear module 52. One end of the first linear module 51 extends to the replacement station 10b and the other end extends to the transfer station 20. The second linear module 52 reciprocates relative to the first linear module 51 along a first direction X, and the claw mechanism 53 reciprocates relative to the second linear module 52 along a second direction Y. The first direction X is perpendicular to the second direction Y.

[0113] Understandably, the first linear module 51 is used to enable the second linear module 52 to reciprocate in the first direction X. The first linear module 51 can be a combination of a chain and a sliding mechanism. The second linear module 52 is used to enable the gripper mechanism 53 to reciprocate in the second direction Y. The second linear module 52 includes, but is not limited to, a lifting mechanism, a telescopic cylinder, a lead screw mechanism, a servo motor, etc.

[0114] Here, the second direction Y can be the direction of gravity.

[0115] With this configuration, the second linear module 52 drives the gripper mechanism 53 to reciprocate between the transfer station 20 and the replacement station 10b, so as to facilitate the replacement of the battery to be tested with the battery to be transferred. The gripper mechanism 53 reciprocates relative to the second linear module 52 in the second direction Y to grasp the battery to be tested or the battery to be transferred.

[0116] Please refer to Figure 4 In some embodiments, the second OCV detection device 40 includes a second test probe mechanism 41, which is disposed on the second linear module 52.

[0117] Here, the second test probe mechanism 41 may be the same as or different from the first test probe mechanism 32 in structure. At the same time, the second test probe mechanism 41 can reciprocate along the second direction Y to detect the incoming transfer battery in the transfer station 20.

[0118] With this configuration, the second test probe mechanism 41 is used to detect incoming transfer batteries, and the second test probe mechanism 41 can reciprocate in the second direction Y.

[0119] Please refer to Figure 4 In some embodiments, the detection device 100 further includes an information collection mechanism 60, which is mounted on the transfer device 50 and can move back and forth between the transfer station 20 and the replacement station 10b.

[0120] Understandably, the information collection device 60 includes, but is not limited to, a camera, scanner, or video camera, and is used to collect image or text information. Simultaneously, the information collection device 60 installed on the transfer device 50 can collect information about the incoming battery material to be tested and the incoming battery material during transit.

[0121] Optionally, the information collection mechanism 60 is mounted on the second linear module 52 of the transfer device 50, thereby enabling reciprocating movement between the transfer station 20 and the replacement station 10b.

[0122] Please refer to Figure 5 and Figure 6 In some embodiments, the transfer station 20 includes a storage box 21 and a tray mechanism 22 for supporting the storage box 21, wherein a plurality of storage cells 21a are formed within the storage box 21.

[0123] Understandably, storage box 21 is used to place each incoming transfer battery, tray mechanism 22 is used to support storage box 21, and the incoming transfer battery is placed in the corresponding storage cell 21a.

[0124] Optionally, each storage cell 21a can be divided into two regions, with storage cells 21a in one region used to store defective products and storage cells 21a in the other region used to store good products.

[0125] Please refer to Figure 5 and Figure 6 In some embodiments, the pallet mechanism 22 includes at least two pallet bodies 221 stacked on top of each other and a slide rail structure 222 disposed between any two adjacent pallet bodies 221, wherein one pallet body 221 slides relative to the other pallet body 221 along the guide direction of the slide rail structure 222.

[0126] Understandably, one of the tray bodies 221 can slide relative to the other tray body 221 along the guide direction of the slide rail structure 222, so that the storage box 21 can be extended in space, making it easier to load and unload materials into the storage box 21.

[0127] Please refer to Figure 6In some embodiments, the slide rail structure 222 includes a guide rail 2221 disposed on one of the tray bodies 221 and a slider 2222 disposed on the other tray body 221, the slider 2222 being slidably connected to the guide rail 2221.

[0128] With this configuration, the two adjacent tray bodies 221 can slide relative to each other due to the mutual sliding action of the slider 2222 and the guide rail 2221.

[0129] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An OCV detection method, characterized in that, The OCV detection method includes: Incoming materials undergo OCV testing. The batteries to be tested are transferred to the OCV testing station for testing. If the test result is unqualified, all incoming materials are transferred to the replacement station. OCV inspection of incoming transshipment materials: OCV inspection is performed on incoming transshipment batteries at the transshipment station. The number of incoming transshipment batteries inspected is one or more. The process involves replacing batteries by transferring defective OCV-tested batteries from the incoming materials to the transfer station, and transferring good OCV-tested batteries from the transfer station to the replacement station for replacement. The OCV detection of the incoming material to be tested and the OCV detection of the transit material are two separate detection methods that do not interfere with each other.

2. The OCV detection method according to claim 1, characterized in that, The OCV detection method further includes: The incoming material information detection involves transmitting the battery to be tested to the replacement station for information collection. If the information collection result is unqualified, all incoming materials are stopped at the replacement station.

3. The OCV detection method according to claim 2, characterized in that: The OCV detection method further includes: Information detection of incoming transfer materials: Information is collected on incoming transfer batteries at the transfer station. The number of incoming transfer batteries for which information is collected is one or more. The battery replacement process involves transferring non-conforming batteries from the incoming materials to a transfer station, and transferring conforming batteries from the transfer station to a replacement station for replacement.

4. The OCV detection method according to claim 1, characterized in that: In the OCV inspection step of the incoming transshipment materials, defective incoming batteries at the transshipment station are classified and stored.

5. The OCV detection method according to claim 3, characterized in that: In the step of detecting incoming materials at the transit station, defective incoming batteries are categorized and stored.

6. A testing device, characterized in that, For implementing the OCV detection method according to any one of claims 1 to 5, the detection device comprises: A transmission line for conveying the battery to be tested, the transmission line having an OCV detection station and a replacement station; The transit station stores multiple transit batteries. The first OCV detection device is used to perform OCV detection on the incoming battery material to be tested. The second OCV detection device is used to perform OCV detection on incoming batteries. The transfer device is used to replace incoming materials between the battery cell to be tested and the intermediate battery. The first OCV detection device is located at the OCV detection station, the transfer device moves back and forth between the transfer station and the replacement station, and the second OCV detection device is located on the transfer device and can move back and forth between the transfer station and the replacement station.

7. The detection device according to claim 6, characterized in that: The first OCV detection device includes a support and a plurality of first test probe mechanisms that are slidably connected to the support along a first direction.

8. The testing equipment according to claim 6, characterized in that: The transfer device includes a first linear module, a second linear module slidably connected to the first linear module, and a claw mechanism disposed on the second linear module. One end of the first linear module extends to the replacement station and the other end extends to the transfer station. The second linear module reciprocates relative to the first linear module along a first direction, and the claw mechanism reciprocates relative to the second linear module along a second direction. The first direction is perpendicular to the second direction.

9. The testing equipment according to claim 8, characterized in that: The second OCV detection device includes a second test probe mechanism, which is disposed on the second linear module.

10. The testing equipment according to any one of claims 6 to 9, characterized in that: The testing equipment also includes an information collection mechanism, which is mounted on the transfer device and can move back and forth between the transfer station and the replacement station.

11. The testing equipment according to any one of claims 6 to 9, characterized in that: The transfer station includes a storage box and a tray mechanism for supporting the storage box, wherein multiple storage cells are formed within the storage box.

12. The detection device according to claim 11, characterized in that: The pallet mechanism includes at least two pallet bodies stacked on top of each other and a slide rail structure disposed between any two adjacent pallet bodies, wherein one pallet body slides relative to the other pallet body along the guide direction of the slide rail structure.

13. The detection device according to claim 12, characterized in that: The slide rail structure includes a guide rail disposed on one of the tray bodies and a slider disposed on the other tray body, the slider being slidably connected to the guide rail.

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