Battery formation processing device and battery manufacturing equipment

By designing a battery-based processing device, using sensors and detectors to monitor the battery cell status in real time, and conducting early warning and fire extinguishing treatment before failure, the problem of poor early warning effect of chemical failure in the prior art is solved, reducing the processing cost and fire extinguishing Difficulty.

CN119153824AActive Publication Date: 2024-12-17GAC AION NEW ENERGY AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202411302147.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-18
Publication Date
2024-12-17
Estimated Expiration
2044-09-18

AI Technical Summary

Technical Problem

In the prior art, the battery failure warning effect is poor, resulting in high processing costs after failure and high fire extinguishing. The failed battery cell must be burned out, and the surrounding battery cell will also be affected.

Method used

A battery-making processing device is designed, including a battery cell loading assembly, a vacuum evacuation assembly and a charging and discharging assembly. The battery cell status is monitored in real time through the sensing detection part, and the charge and discharge is charged and discharged using the EIS detection part, the gas detection part and the charge and discharge mechanism. Operation, and warning is made before the decomposition is made, and the air extraction passage is cut off through the negative pressure cup and solenoid valve and the flame retardant are conveyed for extinguishing the fire.

Benefits of technology

It improves the early warning efficiency of the decomposition failure, reduces the treatment cost after the decomposition failure, avoids the disadvantage of the battery cell being treated after smoke or fire, and achieves timely and effective battery cell processing.

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Abstract

The invention provides a battery formation treatment device and battery manufacturing equipment, and relates to the technical field of batteries. According to the battery formation processing device, a battery cell loading assembly comprises a battery cell clamping and positioning clamp and a sensing detection piece, a battery cell to be formed is installed through the battery cell clamping and positioning clamp, and the sensing detection piece and the battery cell clamping and positioning clamp are installed in a matched mode; the formation vacuumizing assembly comprises a vacuum suction nozzle, a vacuum pump and a gas detection piece, the vacuum suction nozzle is connected to a to-be-formed battery cell, the vacuum suction nozzle and the vacuum pump are connected through an air exhaust pipeline, and the gas detection piece is connected with the air exhaust pipeline; the charging and discharging assembly comprises a charging and discharging mechanism and a processing mechanism, the charging and discharging mechanism is electrically connected with the to-be-formed battery cell, the charging and discharging mechanism is provided with an EIS detection part, and the processing mechanism is electrically connected with the charging and discharging mechanism, the EIS detection part, the sensing detection part and the gas detection part. The battery formation treatment device can achieve the technical effects of improving the formation failure early warning efficiency and reducing the treatment cost after formation failure.
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Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery formation processing device and a battery manufacturing equipment. Background Art

[0002] At present, battery formation is an important part of the battery manufacturing process, especially in the production of lithium-ion batteries. This process involves the first charging of the battery cell after injection, which is usually divided into two stages: pre-formation and main formation; the purpose of formation is mainly to activate the active substances in the battery and improve the overall performance of the battery.

[0003] In the prior art, the formation failure warning for batteries, for example, the formation failure warning for square aluminum shell batteries mainly includes: when the software monitors the temperature of the channel abnormally or the charging voltage jumps abnormally, charging is stopped; if the battery cell is monitored to have failed and smoke is emitted, the smoke sensor is activated, and the fire extinguishing device or water spraying device is activated to perform fire extinguishing operations on the surface of the battery. However, when the temperature is abnormal or the charging voltage jumps abnormally, the battery cell may have short-circuited and lost control, and the internal fire is on the fire. The fire extinguishing device or water spraying device can only extinguish the fire on the surface. Once the fire has melted the shell and the fire has come out, it is difficult to extinguish the fire. The failed battery cell is basically burned out, and the surrounding battery cells are also affected. The failure warning effect is poor and the processing cost after the formation failure is high. Summary of the invention

[0004] The purpose of the present application is to provide a battery formation processing device and battery manufacturing equipment, which can achieve the technical effect of improving the efficiency of formation failure warning and reducing the processing cost after formation failure.

[0005] In a first aspect, the present application provides a battery formation processing device, including a battery cell loading component, a formation vacuum component, and a charge and discharge component;

[0006] The battery cell loading assembly comprises a battery cell clamping and positioning fixture and a sensor detection component, the battery cell to be formed is installed through the battery cell clamping and positioning fixture, and the sensor detection component is installed in matching with the battery cell clamping and positioning fixture;

[0007] The formation vacuum pumping assembly comprises a vacuum suction nozzle, a vacuum pump and a gas detection element, wherein the vacuum suction nozzle is connected to the battery cell to be formed, the vacuum suction nozzle and the vacuum pump are connected through an exhaust pipe, and the gas detection element is connected to the exhaust pipe;

[0008] The charging and discharging assembly includes a charging and discharging mechanism and a processing mechanism. The charging and discharging mechanism is electrically connected to the battery cell to be formed and is provided with an EIS detection component. The processing mechanism is electrically connected to the charging and discharging mechanism, the EIS detection component, the sensor detection component, and the gas detection component, respectively.

[0009] In the above implementation process, the battery formation processing device clamps and installs the battery cell to be formed by the battery cell clamping and positioning fixture, and detects the state information of the battery cell to be formed, such as temperature information, pressure information, etc., in real time through the sensor detection component; maintains the vacuum degree of the battery cell to be formed by the formation vacuum pumping component; then, the battery cell to be formed is charged and discharged by the charging and discharging mechanism, and the charging and discharging process of the battery cell to be formed is controlled by the processing mechanism, and the EIS information, temperature information, pressure information, leakage gas information, etc. of the battery cell to be formed are detected in real time by the EIS detection component, the sensor detection component, and the gas detection component, so that a failure warning can be given before the battery cell to be formed fails to smoke or catch fire, effectively improving the efficiency of the formation failure warning of the battery cell to be formed, and the battery cell to be formed can be promptly and effectively processed after the formation failure, thereby avoiding the disadvantage of processing the battery cell to be formed after smoking or catching fire; thus, the battery formation processing device can achieve the technical effect of improving the efficiency of formation failure warning and reducing the processing cost after formation failure.

[0010] Furthermore, the formation vacuum pumping component also includes a first solenoid valve and a negative pressure cup, the vacuum suction nozzle, the negative pressure cup, the first solenoid valve, and the vacuum pump are connected through an exhaust pipe, and the processing mechanism is electrically connected to the first solenoid valve.

[0011] In the above implementation process, a negative pressure cup is provided to maintain and ensure that the battery cell to be formed is in a certain negative pressure state, and the on-off of the exhaust channel is controlled by the first solenoid valve, so that when the battery cell to be formed is in a formation failure state, the first solenoid valve is closed to cut off the exhaust channel, thereby reducing the difficulty and cost of handling after formation failure.

[0012] Furthermore, the battery formation processing device also includes a failure processing component, which includes a second solenoid valve and a flame retardant storage mechanism. The flame retardant storage mechanism and the second solenoid valve are connected to the vacuum suction nozzle through the negative pressure cup, and the processing mechanism is electrically connected to the second solenoid valve.

[0013] In the above implementation process, flame retardant is stored in the flame retardant storage mechanism, and the second solenoid valve is normally closed; thus, when the battery cell to be formed is in a formation failure state, the first solenoid valve can be closed and the second solenoid valve can be opened, and the flame retardant in the flame retardant storage mechanism can be transported to the battery cell to be formed through the negative pressure of the negative pressure cup, so as to extinguish the fire of the battery cell to be formed, greatly improving the treatment efficiency after formation failure.

[0014] Furthermore, the sensing detection component includes a pressure sensor and a temperature sensor, and the pressure sensor and the temperature sensor are respectively installed in matching with the battery cell clamping and positioning fixture.

[0015] Furthermore, the battery cell clamping and positioning fixture comprises a first clamping plate assembly and a second clamping plate assembly;

[0016] The first clamping plate assembly includes two first clamping plates, and the second clamping plate assembly is installed between the two first clamping plates;

[0017] The second clamping plate assembly includes a plurality of second clamping plates, and the battery cells to be formed are clamped and installed by the plurality of second clamping plates.

[0018] In the above implementation process, the material hardness of the first clamping plate is relatively high, and uniform pressure can be applied to the battery cell to be formed through the two first clamping plates; the material hardness of the second clamping plate is relatively low and has insulating properties, and flexible contact is achieved with the battery cell to be formed through the second clamping plate, thereby preventing the battery cell to be formed from being hard squeezed and achieving insulation, thereby ensuring the normal battery formation.

[0019] Furthermore, the charging and discharging assembly also includes a sensor probe, and the processing mechanism is connected to the sensor detection component through the sensor probe.

[0020] Exemplarily, the state information of the battery cell to be formed, such as pressure, temperature, etc., is obtained through a sensor probe.

[0021] Furthermore, the charging and discharging assembly further comprises a connecting probe, and the charging and discharging mechanism is connected to the battery cell to be formed via the connecting probe.

[0022] In the above implementation process, the charge and discharge mechanism is electrically connected to the battery cell to be formed through the connection probe, so as to perform charge and discharge operations on the battery cell to be formed.

[0023] Furthermore, the formation vacuum pumping assembly also includes an air pressure detection component, and the air pressure detection component is connected to the air extraction pipeline.

[0024] In the above implementation process, the air pressure state of the exhaust pipe is detected by the air pressure detection component, so as to determine whether the formation vacuum pumping component is working normally, thereby ensuring the normal operation of the battery formation processing device.

[0025] Furthermore, the gas detection component is a hydrogen detection component.

[0026] In the above implementation process, the hydrogen detection element is used to detect whether the hydrogen leaked from the battery cell to be formed exceeds a normal threshold value, thereby determining whether the battery cell to be formed has failed.

[0027] In a second aspect, the present application provides a battery manufacturing device, comprising the battery formation processing device described in any one of the first aspects.

[0028] Other features and advantages disclosed in the present application will be described in the following description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by implementing the above-mentioned technology disclosed in the present application.

[0029] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of a battery formation processing device provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of the structure of a battery cell loading assembly provided in an embodiment of the present application.

[0033] Figure numerals: battery cell loading assembly 100; battery cell clamping and positioning fixture 110; first clamping plate 111; second clamping plate 112; sensing detection component 120; formation vacuum assembly 200; vacuum nozzle 210; vacuum pump 220; gas detection component 230; first solenoid valve 240; negative pressure cup 250; air pressure detection component 260; filter 270; charge and discharge assembly 300; charge and discharge mechanism 310; processing mechanism 320; sensing probe 330; connecting probe 340; battery cell to be formed 400; failure processing assembly 500; second solenoid valve 510; flame retardant storage mechanism 520. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0035] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0036] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0037] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or a point connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0039] The embodiment of the present application provides a battery formation processing device and a battery manufacturing equipment, which can be applied to the battery formation processing process and effectively process the battery formation failure; the battery formation processing device clamps and installs the battery to be formed by a battery cell clamping and positioning fixture, and detects the state information of the battery to be formed in real time through a sensor detection component, such as temperature information, pressure information, etc.; maintains the vacuum degree of the battery to be formed through a formation vacuum pumping component; then, the battery to be formed is charged and discharged by a charging and discharging mechanism, the charging and discharging process of the battery to be formed is controlled by a processing mechanism, and By using EIS detection components, sensor detection components, and gas detection components to detect the EIS information, temperature information, pressure information, leaked gas information, etc. of the battery cell to be formed in real time, a failure warning can be issued before the battery cell that has failed in formation starts to smoke or catches fire, thereby effectively improving the efficiency of the formation failure warning of the battery cell to be formed, and the battery cell to be formed can be promptly and effectively processed after the formation failure, thereby avoiding the disadvantage of processing the battery cell that has failed in formation after it has smoked or caught fire; thus, the battery formation processing device can achieve the technical effect of improving the efficiency of the formation failure warning and reducing the processing cost after the formation failure.

[0040] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a battery formation treatment device provided in an embodiment of the present application, Figure 2 A schematic diagram of the structure of a battery cell loading assembly provided in an embodiment of the present application; the battery formation processing device comprises a battery cell loading assembly 100, a formation vacuum assembly 200 and a charge and discharge assembly 300;

[0041] Exemplarily, the battery cell loading assembly 100 includes a battery cell clamping and positioning fixture 110 and a sensor detection component 120, and the battery cell 400 to be formed is installed through the battery cell clamping and positioning fixture 110, and the sensor detection component 120 is installed in matching with the battery cell clamping and positioning fixture 110;

[0042] Exemplarily, the battery cell 400 to be formed is clamped and installed by the battery cell clamping and positioning fixture 110 to prevent the battery cell to be formed from moving during the formation test, thereby ensuring the normal progress of the battery formation test; in some embodiments, the sensor detection component 120 is installed between the battery cell clamping and positioning fixture 110 and the battery cell 400 to be formed, and the temperature information, pressure information, etc. of the battery cell 400 to be formed are detected by the sensor detection component 120, so as to perform real-time detection of the formation state of the battery cell 400 to be formed.

[0043] Exemplarily, the formation vacuum assembly 200 includes a vacuum nozzle 210, a vacuum pump 220 and a gas detection element 230, the vacuum nozzle 210 is connected to the battery cell 400 to be formed, the vacuum nozzle 210 and the vacuum pump 220 are connected through an exhaust pipe, and the gas detection element 230 is connected to the exhaust pipe;

[0044] Exemplarily, the vacuum pump 220 is connected to the battery cell 400 to be formed through the vacuum nozzle 210 to ensure that the vacuum degree of the battery cell 400 to be formed meets the formation requirements; in addition, the leakage gas composition of the battery cell 400 to be formed is detected by the gas detection element 230, and the leakage gas composition can assist in determining whether the battery cell 400 to be formed has failed.

[0045] Exemplarily, the charge and discharge assembly 300 includes a charge and discharge mechanism 310 and a processing mechanism 320. The charge and discharge mechanism 310 is electrically connected to the battery cell 400 to be formed, and the charge and discharge mechanism 310 is provided with an EIS detection component. The processing mechanism 320 is electrically connected to the charge and discharge mechanism 310, the EIS detection component, the sensor detection component 120, and the gas detection component 230, respectively.

[0046] Exemplarily, the charge and discharge mechanism 310 is electrically connected to the battery cell 400 to be formed, so that the battery cell 400 to be formed is charged and discharged through the charge and discharge mechanism 310; wherein, the charge and discharge mechanism 310 is provided with an EIS detection component, which can perform EIS detection on the battery cell 400 to be formed and obtain EIS information of the battery cell 400 to be formed, so that the charge and discharge mechanism 310 has an in-situ EIS function; when the EIS information value of the battery cell 400 to be formed deviates from the standard value, it is judged that the battery cell 400 to be formed is in a formation failure state.

[0047] In some embodiments, the processing mechanism 320 is electrically connected to the charging and discharging mechanism 310, the EIS detection element, the sensor detection element 120, and the gas detection element 230, respectively, so that the EIS information, the leaked gas composition information, the temperature information, the pressure information, etc. of the battery cell 400 to be formed can be obtained through the processing mechanism 320, so as to comprehensively judge whether the battery cell 400 to be formed has failed through the above information, and a failure warning can be issued before the failed battery cell smokes or catches fire, thereby effectively improving the efficiency of the failure warning of the battery cell to be formed, and the battery cell to be formed can be promptly and effectively processed after the failure.

[0048] Exemplarily, the battery formation processing device clamps and installs the battery cell 400 to be formed by the battery cell clamping and positioning fixture 110, and detects the state information of the battery cell 400 to be formed in real time, such as temperature information, pressure information, etc., by the sensor detection component 120; maintains the vacuum degree of the battery cell 400 to be formed by the formation vacuum pumping component 200; then, the battery cell 400 to be formed is charged and discharged by the charge and discharge mechanism 310, and the charge and discharge process of the battery cell 400 to be formed is controlled by the processing mechanism 320, and the EIS detection component, the sensor detection component 120, The gas detection element 230 detects the EIS information, temperature information, pressure information, leakage gas information, etc. of the battery cell 400 to be formed in real time, and can issue a failure warning before the battery cell to be formed fails to smoke or catches fire, effectively improving the efficiency of the formation failure warning of the battery cell to be formed, and can promptly and effectively process the battery cell to be formed after the formation failure, thereby avoiding the disadvantage of processing the battery cell to be formed after it smokes or catches fire; thus, the battery formation processing device can achieve the technical effect of improving the efficiency of formation failure warning and reducing the processing cost after formation failure.

[0049] Exemplarily, the formation vacuum assembly 200 also includes a first solenoid valve 240 and a negative pressure cup 250 , the vacuum nozzle 210 , the negative pressure cup 250 , the first solenoid valve 240 , and the vacuum pump 220 are connected via an exhaust pipe, and the processing mechanism 320 is electrically connected to the first solenoid valve 240 .

[0050] Exemplarily, a negative pressure cup 250 is provided to maintain and ensure that the battery cell 400 to be formed is in a certain negative pressure state, and the on-off of the exhaust channel is controlled by the first solenoid valve 240, so that when the battery cell 400 to be formed is in a formation failure state, the first solenoid valve 240 is closed to cut off the exhaust channel, thereby reducing the difficulty and cost of handling after the formation failure.

[0051] It should be noted that if Figure 1 As shown, the connection sequence of the vacuum nozzle 210, the negative pressure cup 250, the first solenoid valve 240, and the vacuum pump 220 provided in the embodiment of the present application is only an example and not a limitation. The connection sequence of each component in the vacuum pumping assembly 200 can be adjusted according to actual needs and internal logic.

[0052] Exemplarily, the battery formation processing device also includes a failure processing component 500, which includes a second solenoid valve 510 and a flame retardant storage mechanism 520. The flame retardant storage mechanism 520 and the second solenoid valve 510 are connected to the vacuum nozzle 210 through the negative pressure cup 250, and the processing mechanism 320 is electrically connected to the second solenoid valve 510.

[0053] Exemplarily, flame retardant is stored in the flame retardant storage mechanism 520, and the second solenoid valve 510 is normally closed; thus, when the battery cell 400 to be formed is in a state of formation failure, the first solenoid valve 240 can be closed and the second solenoid valve 510 can be opened, and the flame retardant in the flame retardant storage mechanism 520 can be transported to the battery cell 400 to be formed through the negative pressure of the negative pressure cup 250, thereby extinguishing the fire of the battery cell 400 to be formed, greatly improving the treatment efficiency after the formation failure.

[0054] Exemplarily, the sensing detection component 120 includes a pressure sensor and a temperature sensor, and the pressure sensor and the temperature sensor are respectively installed in matching with the battery cell clamping and positioning fixture 110 .

[0055] Exemplarily, the battery cell clamping and positioning fixture 110 includes a first clamping plate assembly and a second clamping plate assembly;

[0056] The first clamping plate assembly includes two first clamping plates 111, and the second clamping plate assembly is installed between the two first clamping plates 111;

[0057] The second clamping plate assembly includes a plurality of second clamping plates 112 , and the battery cells 400 to be formed are clamped and installed by the plurality of second clamping plates 112 .

[0058] Illustratively, the material hardness of the first clamping plate 111 is relatively high, and uniform pressure can be applied to the battery cell 400 to be formed through the two first clamping plates 111; the material hardness of the second clamping plate 112 is relatively low and has insulating properties, and flexible contact is achieved with the battery cell 400 to be formed through the second clamping plate 112, thereby preventing the battery cell 400 to be formed from being hard squeezed and achieving insulation, thereby ensuring normal battery formation.

[0059] In some embodiments, the first plywood 111 may be an aluminum alloy plywood, and the second plywood 112 may be a bakelite plywood.

[0060] Exemplarily, the charge-discharge assembly 300 further includes a sensor probe 330 , and the processing mechanism 320 is connected to the sensor detection component 120 via the sensor probe 330 .

[0061] Exemplarily, the charge-discharge assembly 300 further includes a connection probe 340 , and the charge-discharge mechanism 310 is connected to the battery cell 400 to be formed via the connection probe 340 .

[0062] Exemplarily, the charge-discharge mechanism 310 is electrically connected to the battery cell 400 to be formed via the connection probe 340 , so as to perform charge-discharge operations on the battery cell 400 to be formed.

[0063] Exemplarily, the formation vacuum pumping assembly 200 further includes an air pressure detection component 260 , and the air pressure detection component 260 is connected to the air pumping pipeline.

[0064] Exemplarily, the air pressure state of the exhaust pipe is detected by the air pressure detection member 260, so as to determine whether the formation vacuum pumping assembly 200 is operating normally, thereby ensuring the normal operation of the battery formation processing device.

[0065] Exemplarily, the gas detection element 230 is a hydrogen detection element.

[0066] Exemplarily, the hydrogen detection element is used to detect whether the hydrogen leaked from the battery cell 400 to be formed exceeds a normal threshold value, thereby determining whether the battery cell 400 to be formed has failed.

[0067] In some embodiments, the formation vacuum assembly 200 further includes a filter 270 , which is connected to the exhaust pipe. The filter 270 is used to achieve a certain filtering function, thereby achieving electrolyte filtration and ensuring the normal operation of the vacuum pump 220 .

[0068] Exemplarily, the present application provides a battery manufacturing device, comprising: Figure 1 , Figure 2 The battery formation processing device shown.

[0069] In some implementation scenarios, combined with Figure 1 and Figure 2 As shown, the battery formation processing device provided in the embodiment of the present application includes the following structure:

[0070] 1) Cell loading components, used for cell positioning / pressurization: cell clamping and positioning fixtures, sensing detection components (including temperature sensors, pressure sensors, etc.);

[0071] 2) Vacuum pumping components: vacuum nozzle, negative pressure cup, vacuum gauge, solenoid valve, electrolyte filter, vacuum pump;

[0072] 3) Charge and discharge components: with in-situ EIS function; the processing mechanism is integrated with charge and discharge software, and the information collected by the integrated pressure sensor and hydrogen sensor is compared with the standard value, and an early warning signal is issued once it deviates from the standard;

[0073] 4) Failure processing component 500: second solenoid valve, flame retardant storage mechanism (flame retardant tank);

[0074] The battery formation processing device provided in the embodiment of the present application has an example of an operation flow as follows:

[0075] 1) Cell positioning and pressurizing tooling: align the cell with the limit block and put it into the fixture, tighten the screws (there are pressure and temperature sensors on the surface of the pressure plate), start the cylinder, connect the power supply current and voltage probes, temperature probes and vacuum nozzles;

[0076] 2) Formation vacuum system: After the vacuum nozzle is connected to the battery cell, the first solenoid valve is normally open, the vacuum pump is started, and the software controls the vacuum degree according to the process requirements; normal charging and discharging is performed;

[0077] 3) Charging and discharging equipment: Design the process steps according to the process requirements (add frequency signals to the process steps), and send the process steps to start charging and discharging; the software collects the changes in battery cell pressure and hydrogen concentration at any time, and compares them with the standard values. Once the deviation from the standard is detected, an early warning signal is issued. When the deviation value reaches the fire warning line, the first solenoid valve is closed, the second solenoid valve is opened, and the flame retardant automatically enters the battery cell to prevent the battery cell from catching fire;

[0078] 4) Failure warning and fire extinguishing system: When the EIS information value collected by the formation software from the pressure sensor, hydrogen sensor, and charging and discharging equipment deviates from the standard value and reaches the fire extinguishing warning line, the first solenoid valve is closed, the second solenoid valve is opened, and the flame retardant enters the alarm channel battery cell to achieve the purpose of fire extinguishing.

[0079] Illustratively, in the battery formation processing device provided in the embodiment of the present application, the processing mechanism 320 has the function of sending the integrated frequency of the work step file: collecting the in-situ EIS value, pressure sensor, temperature sensor, and hydrogen concentration sensor information, comparing them with the standard value, issuing a real-time warning after deviation, and initiating fire extinguishing after the deviation exceeds the warning line.

[0080] In all the embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms are not elaborated in the embodiments of the present application.

[0081] It should be understood that the "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, "in this embodiment", "in the embodiment of the present application" or "as an optional implementation" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0082] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0083] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A battery formation treatment device, characterized in that: It includes battery cell loading components, formation vacuum components and charging and discharging components; The battery cell loading assembly comprises a battery cell clamping and positioning fixture and a sensor detection component, the battery cell to be formed is installed through the battery cell clamping and positioning fixture, and the sensor detection component is installed in matching with the battery cell clamping and positioning fixture; The formation vacuum pumping assembly comprises a vacuum suction nozzle, a vacuum pump and a gas detection element, wherein the vacuum suction nozzle is connected to the battery cell to be formed, the vacuum suction nozzle and the vacuum pump are connected through an exhaust pipe, and the gas detection element is connected to the exhaust pipe; The charging and discharging assembly includes a charging and discharging mechanism and a processing mechanism. The charging and discharging mechanism is electrically connected to the battery cell to be formed and is provided with an EIS detection component. The processing mechanism is electrically connected to the charging and discharging mechanism, the EIS detection component, the sensor detection component, and the gas detection component, respectively.

2. The battery formation treatment device according to claim 1, characterized in that: The formation vacuum pumping component also includes a first solenoid valve and a negative pressure cup. The vacuum suction nozzle, the negative pressure cup, the first solenoid valve, and the vacuum pump are connected through an exhaust pipe, and the processing mechanism is electrically connected to the first solenoid valve.

3. The battery formation treatment device according to claim 2, characterized in that: The battery formation processing device also includes a failure processing component, which includes a second solenoid valve and a flame retardant storage mechanism. The flame retardant storage mechanism and the second solenoid valve are connected to the vacuum suction nozzle through the negative pressure cup, and the processing mechanism is electrically connected to the second solenoid valve.

4. The battery formation treatment device according to claim 1, characterized in that: The sensing detection component includes a pressure sensor and a temperature sensor, and the pressure sensor and the temperature sensor are respectively matched and installed with the battery core clamping and positioning fixture.

5. The battery formation treatment device according to claim 1 or 4, characterized in that: The battery core clamping and positioning fixture comprises a first clamping plate assembly and a second clamping plate assembly; The first clamping plate assembly includes two first clamping plates, and the second clamping plate assembly is installed between the two first clamping plates; The second clamping plate assembly includes a plurality of second clamping plates, and the battery cells to be formed are clamped and installed by the plurality of second clamping plates.

6. The battery formation treatment device according to claim 1, characterized in that: The charging and discharging assembly further comprises a sensing probe, and the processing mechanism is connected to the sensing detection element via the sensing probe.

7. The battery formation treatment device according to claim 1 or 6, characterized in that: The charging and discharging assembly further comprises a connecting probe, and the charging and discharging mechanism is connected to the battery cell to be formed via the connecting probe.

8. The battery formation treatment device according to claim 1, characterized in that: The formation vacuum pumping assembly further comprises an air pressure detection component, and the air pressure detection component is connected to the air pumping pipeline.

9. The battery formation treatment device according to claim 1, characterized in that: The gas detection component is a hydrogen detection component.

10. A battery manufacturing device, characterized in that: It comprises a battery formation processing device as described in any one of claims 1 to 9.

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