Battery cell feeding and discharging device and solid-state battery production line

Abstract

The utility model discloses a battery cell feeding and discharging device and a solid-state battery production line, and belongs to the technical field of solid-state battery manufacturing, the battery cell feeding and discharging device is applied to feeding and discharging of battery cells, the battery cell feeding and discharging device comprises a material frame provided with a hollow containing cavity, and the containing cavity can allow the battery cells to enter and exit; the workbench is used for supporting the material frame; and the transferring assembly comprises a moving part and a connecting part, the connecting part is used for being detachably connected with the material frame, the moving part is used for driving the connecting part to get close to or get away from the workbench, feeding and discharging of the battery cells are facilitated, and damage to the battery cells is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-state battery manufacturing, in particular to a battery core loading and unloading device and a solid-state battery production line. Background Art

[0002] Solid-state batteries are batteries that use solid electrolytes to replace the diaphragms and liquid electrolytes in traditional batteries. Solid-state lithium batteries can use lithium metal anodes to replace the graphite or silicon anodes in traditional lithium-ion batteries. Lithium metal anodes have a higher energy density than traditional anodes, allowing batteries to store more energy in the same volume. Compared with liquid electrolytes, solid electrolytes are difficult to fit tightly with electrodes, so some processes use isostatic pressing equipment to pressurize the laminated battery cells to improve the fit between the solid electrolyte and the electrodes.

[0003] In the related art, the factory is not equipped with a device for loading and unloading battery cells to the isostatic pressing equipment. Instead, the battery cells are directly clamped by conventional manipulators, which can easily cause damage to the battery cells and is not conducive to ensuring the manufacturing quality of the battery cells. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a battery core loading and unloading device, which is conducive to realizing the loading and unloading of the battery core and reducing damage to the battery core.

[0005] The utility model also provides a solid-state battery production line.

[0006] The battery cell loading and unloading device according to the first embodiment of the utility model is applied to the loading and unloading of battery cells, and comprises: a material frame having a hollow cavity capable of allowing the battery cells to enter and exit; a workbench for supporting the material frame; a transfer assembly comprising a moving part and a connecting part, wherein the connecting part is used for being detachably connected to the material frame, and the moving part is used for driving the connecting part to move closer to or away from the workbench.

[0007] The battery cell loading and unloading device according to the embodiment of the utility model has at least the following beneficial effects: the battery cell loading and unloading device includes a material frame, the material frame has a hollow cavity, the cavity can allow the battery cell to enter and exit, that is, before loading the battery cell, the user needs to place the battery cell into the cavity of the material frame, the workbench is used to support the material frame, and the transfer assembly includes a moving part and a connecting part, the connecting part is used to be detachably connected to the material frame, and the moving part is used to drive the connecting part to move closer to or away from the workbench, that is, when the material frame is placed on the workbench, under the action of the moving part, the connecting part can be moved closer to the material frame, and the connecting part and the material frame can be detachably connected. The material frame is connected, and then under the moving action of the moving part, the material frame can be transferred to the isostatic pressing equipment to realize the isostatic pressing treatment of the battery cell. Since the cavity is hollowed out, the isostatic pressing medium can directly pass through the material frame and act on the battery cell in the cavity, which is beneficial to ensure the isostatic pressing effect of the battery cell. The battery cell loading and unloading device accommodates the battery cell through the material frame, and automatically transfers the battery cell in the material frame through the transfer component, which is beneficial to avoid the problem of direct contact between the transfer component and the battery cell causing damage to the battery cell, and can automatically realize the loading and unloading of the battery cell relative to the isostatic pressing equipment, which is beneficial to improve the loading and unloading efficiency of the battery cell.

[0008] According to some embodiments of the present invention, the material frame includes two transverse pieces and a connecting piece, the two transverse pieces are arranged in an upper and lower spacing, and the two ends of the connecting piece are respectively connected to the two opposite transverse pieces to jointly enclose the cavity.

[0009] Specifically, the material frame includes two transverse pieces and a connecting piece, the two transverse pieces are opposed to each other and arranged at intervals, and the two ends of the connecting piece are respectively connected to the two opposite transverse pieces to fix the relative position relationship between the upper and lower transverse pieces and keep the upper and lower transverse pieces arranged at intervals, that is, the two transverse pieces and the connecting piece together form a cavity of the material frame, so that the material frame is hollowed out, and the user needs to place the battery cell into the cavity of the material frame. Under the transfer action of the transfer assembly, the material frame can be transferred to the isostatic pressing equipment to realize isostatic pressing treatment of the battery cell. Since the cavity is hollowed out, the isostatic pressing medium can directly pass through the material frame and act on the battery cell in the cavity, which is beneficial to ensure the isostatic pressing effect of the battery cell.

[0010] According to some embodiments of the utility model, a plurality of first leakage holes communicating with the containing cavity are provided on the transverse piece.

[0011] Specifically, the cross piece is provided with a plurality of first leakage holes connected with the cavity. Through the setting of the plurality of first leakage holes, when the material frame is placed in the isostatic pressing equipment, the isostatic pressing medium can directly pass through the first leakage holes of the cross piece and the gap between the cross piece and the connecting piece, so that the isostatic pressing medium can directly act on the battery cells located in the cavity, which is beneficial to ensure the isostatic pressing effect of the battery cells. Moreover, when the transfer assembly takes the material frame out of the isostatic pressing equipment, the setting of the first leakage holes allows the isostatic pressing medium to flow out of the cavity, so as to achieve separation of the isostatic pressing medium and the battery cells.

[0012] According to some embodiments of the utility model, the material frame also includes two clamping plates and an adjusting member arranged in the cavity. The two clamping plates are arranged opposite to each other and at intervals to jointly define a clamping space that allows the electric core to enter and exit. Both clamping plates are connected to the adjusting member, and the adjusting member is used to adjust the spacing of the clamping space.

[0013] Taking into account that the structure of the initially laminated battery cells is relatively loose and there is a risk of disintegration, the material frame also includes two clamping plates and an adjusting member arranged in the cavity. The two clamping plates are opposite to each other and are arranged at intervals to jointly define a clamping space that allows the battery cells to enter and exit. When the user places the battery cells into the cavity, the battery cells can be directly placed into the clamping space. Both clamping plates are connected to the adjusting member, and the adjusting member is used to adjust the spacing of the clamping space. Under the adjustment action of the adjusting member, the two clamping plates can apply opposite clamping forces to the battery cells, which is beneficial for keeping the battery cells in a laminated or combined state in the material frame. Under the transfer action of the transfer assembly, the material frame can be placed in the isostatic pressing equipment. After the isostatic pressing medium penetrates the cavity, it can act on the two clamping plates, thereby performing isostatic pressing treatment on the battery cells.

[0014] According to some embodiments of the present invention, the material frame further comprises two limit blocks connected to the inner wall of the cavity, the two limit blocks respectively abut against the ends of the two clamps that are away from each other to limit the relative position relationship between the clamps and the cavity; and / or,

[0015] The adjusting piece comprises a bolt and a nut. The clamping plate is provided with a through hole. The bolt passes through the through holes of the two clamping plates and is threadedly connected with the nut.

[0016] Optionally, the material frame also includes two limit blocks connected to the inner wall of the cavity, the two limit blocks are respectively abutted against the ends of the two clamps that are far away from each other to limit the relative position relationship between the two clamps and the cavity, that is, under the limiting action of the two limit blocks, the two clamps can be initially positioned in the cavity, which is beneficial to the positioning of the battery cell in the cavity, and is beneficial to making the isostatic pressing effect of the battery cell more stable and reliable; optionally, the adjusting member also includes bolts and nuts, and the clamps are provided with through holes, and the bolts are threadedly connected with the nuts after passing through the through holes of the two clamps. After the user places the battery cell into the clamping space, by adjusting the screwing length of the nut and the bolt, the bolts and the nuts apply opposite clamping forces to the two clamps, which is beneficial to keeping the battery cell in a covered or combined state in the material frame. Under the transfer action of the transfer assembly, the material frame can be placed in the isostatic pressing equipment, and the isostatic pressing medium can act on the two clamps after penetrating the cavity, thereby performing isostatic pressing on the battery cell.

[0017] According to some embodiments of the present invention, the material frame is provided with a plurality of cavities.

[0018] Specifically, the material frame of the battery cell loading and unloading device is provided with a plurality of cavities, each of which can allow the battery cells to enter, exit and be accommodated, that is, the material frame can accommodate multiple groups of battery cells at a time, and the transfer component of the battery cell loading and unloading device can realize the loading and unloading of multiple groups of battery cells relative to the isostatic pressing equipment at a time, which is beneficial to improving the efficiency of battery cell loading and unloading, and is beneficial to avoiding the problem of battery cell damage caused by direct contact between the transfer component and the battery cells, and can automatically realize the loading and unloading of battery cells relative to the isostatic pressing equipment, which is beneficial to improving the efficiency of battery cell loading and unloading.

[0019] According to some embodiments of the utility model, the workbench includes a supporting plate and a collector, the upper end of the supporting plate is used to carry the material frame, the supporting plate is provided with a plurality of second leakage holes, the collector is located below the supporting plate, and the plurality of second leakage holes are opposite to the collector.

[0020] Taking into account the high carrying capacity of oil, isostatic pressing equipment for isostatic pressing of battery cells generally uses oil as the isostatic pressing medium. Specifically, the workbench includes a supporting plate and a collector. The upper end of the supporting plate is used to carry the material frame, and the supporting plate is provided with a plurality of second leakage holes. The collector is arranged below the supporting plate. The transfer assembly can take the battery cell out of the isostatic pressing equipment after the isostatic pressing treatment is completed, and transfer the material frame from the isostatic pressing equipment to the workbench. The oil drips onto the supporting plate after passing through the cavity, and passes through the second leakage holes to converge to the collector. That is, the battery cell loading and unloading device can collect the isostatic pressing medium after the isostatic pressing treatment is completed through the cooperation of the supporting plate and the collector, which is conducive to the reuse of the isostatic pressing medium, energy saving, and reducing the operating cost of the battery cell loading and unloading device.

[0021] According to some embodiments of the utility model, the workbench also includes a fan and multiple enclosures, the supporting plate has a heat dissipation station connected to multiple second leakage holes, the multiple enclosures are arranged around the heat dissipation station, the fan is connected to the workbench, and the air outlet of the fan is opposite to the heat dissipation station.

[0022] Taking into account that the temperature of the battery cell will increase under the isostatic pressing action of the isostatic pressing equipment, and isostatic pressing medium is attached to the battery cell, the support plate has a heat dissipation station connected to multiple second leakage holes, multiple enclosures are arranged around the heat dissipation station, and the fan is connected to the workbench, and the air outlet of the fan is opposite to the heat dissipation station. Under the transfer action of the transfer component, the material frame after isostatic pressing can be transferred to the heat dissipation station of the support plate, and multiple enclosures are arranged around the material frame located at the heat dissipation station. Then the fan is started, and the heat dissipation of the battery cell is accelerated under the blowing action of the fan. Under the action of wind energy, it is conducive to accelerating the separation of the isostatic pressing medium and the battery cell. The arrangement of the enclosure is conducive to blocking the splashing isostatic pressing medium, and is conducive to allowing the isostatic pressing medium to pass through the second leakage holes connected to the heat dissipation station and converge to the collector, that is, the battery cell loading and unloading device can realize the heat dissipation treatment of the battery cell after the isostatic pressing treatment is completed, which is conducive to improving the manufacturing efficiency of the battery cell.

[0023] According to some embodiments of the utility model, the connecting component includes a shell and a coil, the shell is connected to the moving component, the coil is arranged in the shell, the coil is configured to receive input current to generate a magnetic field, and the material frame is made of magnetic material.

[0024] Specifically, the connecting component includes a shell and a coil, and the material frame is adapted to be made of magnetic material. The shell is connected to the moving component, and the coil is arranged in the shell. Under the movement of the moving component, the shell can be moved closer to the material frame. The coil is configured to receive input current and generate a magnetic field. The magnetic field generated by the coil can generate an attractive force on the material frame to achieve a detachable connection between the connecting component and the material frame. Under the movement of the moving component, the material frame can be hoisted into the isostatic pressing equipment. When the material frame has been stably contacted with the isostatic pressing equipment, the coil can be powered off to eliminate the attractive force between the connecting component and the material frame, thereby achieving separation of the connecting component from the material frame. The battery cell loading and unloading device is conducive to simplifying the connection or separation of the connecting component and the material frame through the structural setting of the connecting component, and is conducive to accelerating the loading and unloading efficiency of the battery cell relative to the isostatic pressing equipment.

[0025] According to the solid-state battery production line of the second embodiment of the utility model, it includes: isostatic pressing equipment; a battery cell loading and unloading device as shown in any one of the first aspects, and a transfer component is used to transfer the material frame between the workbench and the isostatic pressing equipment.

[0026] The solid-state battery production line according to the embodiment of the utility model has at least the following beneficial effects: the solid-state battery production line includes an isostatic pressing device and a battery cell loading and unloading device, the transfer component is used to transfer the material frame between the workbench and the isostatic pressing device, so as to realize the loading and unloading of the battery cell, the battery cell loading and unloading device includes a material frame, the material frame has a hollow cavity, the cavity can allow the battery cell to enter and exit, that is, before loading the battery cell, the user needs to place the battery cell into the cavity of the material frame, the workbench is used to support the material frame, and the transfer component includes a moving part and a connecting part, the connecting part is used to be detachably connected to the material frame, and the moving part is used to drive the connecting part to be close to or away from the workbench, that is, when the material frame is placed on the workbench, on the transfer component Under the action of the moving part, the connecting part can be moved closer to the material frame, and the connecting part and the material frame can be detachably connected. Then, under the moving action of the moving part, the material frame can be transferred to the isostatic pressing equipment to realize the isostatic pressing treatment of the battery cell. Since the cavity is hollow, the isostatic pressing medium can directly pass through the material frame and act on the battery cell in the cavity, which is beneficial to ensure the isostatic pressing effect of the battery cell. The battery cell loading and unloading device accommodates the battery cell through the material frame, and automatically transfers the battery cell in the material frame through the transfer component, which is beneficial to avoid the problem of direct contact between the transfer component and the battery cell causing damage to the battery cell, and can automatically realize the loading and unloading of the battery cell relative to the isostatic pressing equipment, which is beneficial to improve the loading and unloading efficiency of the battery cell.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0029] Figure 1 This is a structural schematic diagram of a solid-state battery production line according to an embodiment of the utility model;

[0030] Figure 2 This is a schematic structural diagram of a material frame of a battery cell loading and unloading device according to an embodiment of the utility model;

[0031] Figure 3 It is a structural schematic diagram of a material frame of a battery cell loading and unloading device according to an embodiment of the utility model from another perspective;

[0032] Figure 4 The present invention is a schematic structural diagram of a transfer assembly of a battery cell loading and unloading device according to an embodiment of the present invention.

[0033] Figure Number:

[0034] 100, material frame; 110, containing cavity; 120, horizontal piece; 121, first leak hole; 130, connecting piece; 140, clamping plate; 141, clamping space; 150, adjusting piece; 151, bolt; 152, nut; 160, limit block;

[0035] 200, workbench; 210, supporting plate; 211, second leak hole; 220, heat dissipation station; 230, loading station; 240, unloading station; 250, enclosure; 260, fan;

[0036] 300, transfer component; 310, moving component; 320, connecting component;

[0037] 400. Isostatic pressing equipment. DETAILED DESCRIPTION

[0038] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0039] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0041] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0042] Reference Figures 1 to 4 As shown, a battery cell loading and unloading device according to an embodiment of the utility model is applied to loading and unloading of battery cells relative to an isostatic pressing device 400 . The battery cell loading and unloading device comprises: a material frame 100 , a workbench 200 and a transfer assembly 300 .

[0043] Reference Figure 1 and Figure 2 As shown, the material frame 100 has a hollow cavity 110, and the cavity 110 can allow the electric core to enter and exit. The workbench 200 is used to carry the material frame 100. The material frames 100 to be loaded and unloaded are placed on the workbench 200. The transfer assembly 300 includes a moving part 310 and a connecting part 320. The connecting part 320 is used to be detachably connected to the material frame 100, and the moving part 310 is used to drive the connecting part 320 to move closer to or away from the workbench 200.

[0044] Reference Figure 1 and Figure 2 As shown, before loading the battery cells, the user needs to place the battery cells into the cavity 110 of the material frame 100, and the transfer assembly 300 includes a moving component 310 and a connecting component 320, the connecting component 320 is used to be detachably connected to the material frame 100, and the moving component 310 is used to drive the connecting component 320 to move closer to or farther away from the workbench 200, that is, when the material frame 100 loaded with battery cells is placed on the workbench 200, under the moving action of the moving component 310, the connecting component 320 can be moved closer to the material frame 100, and the connecting component 320 is detachably connected to the material frame 100, and then under the moving action of the moving component 310, the material frame 100 can be transferred to the isostatic pressing equipment 400 to realize the isostatic pressing treatment of the battery cells.

[0045] Reference Figure 1 and Figure 2 As shown, since the cavity 110 is hollowed out, the isostatic pressing medium can directly pass through the material frame 100 and act on the battery cells in the cavity 110, which is beneficial to ensuring the isostatic pressing effect of the battery cells. The battery cell loading and unloading device accommodates the battery cells through the material frame 100, and automatically transfers the battery cells in the material frame 100 through the transfer component 300, which is beneficial to avoiding the problem of direct contact between the transfer component 300 and the battery cells causing damage to the battery cells, and can automatically realize the loading and unloading of the battery cells relative to the isostatic pressing equipment 400, which is beneficial to improving the loading and unloading efficiency of the battery cells.

[0046] Reference Figure 1 and Figure 3 As shown, it is understandable that, considering the high carrying capacity of oil, the isostatic pressing device 400 for isostatic pressing the battery cell generally uses oil as the isostatic pressing medium. The following description is made by taking the isostatic pressing medium of the isostatic pressing device 400 as oil as an example. The material frame 100 includes two transverse pieces 120 and a connecting member 130. The two transverse pieces 120 are arranged in an upper and lower interval. The two ends of the connecting member 130 are respectively connected to the two opposite transverse pieces 120 to fix the relative position relationship between the upper and lower transverse pieces 120 to jointly enclose the cavity 110.

[0047] Reference Figure 1 and Figure 3 As shown, two transverse pieces 120 and a connecting piece 130 together enclose a cavity 110 of a material frame 100, and a gap communicating with the cavity 110 is formed between the connecting piece 130 and the transverse piece 120, so that the material frame 100 is hollowed out. A user needs to place a battery cell into the cavity 110 of the material frame 100. Under the transfer action of the transfer assembly 300, the material frame 100 can be transferred to the isostatic pressing equipment 400 to achieve isostatic pressing of the battery cell. Since the cavity 110 is hollowed out, the isostatic pressing medium can directly pass through the material frame 100 and act on the battery cell in the cavity 110, which is beneficial to ensure the isostatic pressing effect of the battery cell.

[0048] Specifically, at least three connectors 130 are arranged between every two transverse pieces 120, and the three connectors 130 are arranged around the outer edge of the transverse piece 120. Two adjacent connectors 130 and the two transverse pieces 120 together form a gap connected to the cavity 110. When the material frame 100 is placed in the isostatic pressing device 400, the isostatic pressing medium can enter the cavity 110 through the gap. The connector 130 can be connected to the transverse piece 120 by welding, threaded connection, etc., which is conducive to enhancing the stability between the two transverse pieces 120, reducing the shaking of the material frame 100 during the transfer process, and improving the loading and unloading efficiency of the battery cell relative to the isostatic pressing device 400.

[0049] Reference Figure 1 and Figure 3 As shown, specifically, the cross piece 120 is provided with a plurality of first leakage holes 121 connected with the cavity 110. Through the setting of the plurality of first leakage holes 121, when the material frame 100 is placed in the isostatic pressing equipment 400, the isostatic pressing medium can directly pass through the first leakage holes 121 and the gap between the connecting piece 130 and the cross piece 120, so that the isostatic pressing medium can directly act on the battery cells located in the cavity 110, which is beneficial to ensure the isostatic pressing effect of the battery cells. Moreover, when the transfer component 300 takes the material frame 100 out of the isostatic pressing equipment 400, the setting of the first leakage holes 121 allows the isostatic pressing medium to flow out of the cavity 110, so as to achieve the separation of the isostatic pressing medium and the battery cells.

[0050] Reference Figure 1 and Figure 3 As shown, it can be understood that, specifically, the shape of the cross-piece 120 is similar to the cross-sectional shape of the isostatic chamber of the isostatic pressing device 400, and the size of the cross-piece 120 is smaller than the cross-sectional size of the isostatic chamber of the isostatic pressing device 400, which is conducive to making the material frame 100 transferred to the isostatic pressing device 400 fit the isostatic chamber, and is conducive to reducing the risk of collision between the material frame 100 and the inner wall of the isostatic chamber. Specifically, the cross-sections of the cross-piece 120 and the isostatic chamber are both set to be circular, which is conducive to improving the uniformity of the pressure inside the isostatic chamber.

[0051] Reference Figure 1 and Figure 3 As shown, it is understandable that, considering that the structure of the initially laminated battery cell is relatively loose and there is a risk of disintegration, the material frame 100 also includes two clamping plates 140 and an adjusting member 150 arranged in the cavity 110. The two clamping plates 140 are arranged oppositely and at intervals to jointly define a clamping space 141 that allows the battery cell to enter and exit. When the user places the battery cell into the cavity 110, the battery cell can be directly placed in the clamping space 141. The two clamping plates 140 are connected to the adjusting member 150. The adjusting member 150 is used to adjust the spacing of the clamping space 141. Under the adjusting action of the adjusting member 150, the two clamping plates 140 can apply opposite clamping forces to the battery cells, which is beneficial for the battery cells to maintain a laminated or combined state in the material frame 100. Under the transfer action of the transfer assembly 300, the material frame 100 can be placed in the isostatic pressing equipment 400. After the isostatic pressing medium penetrates the cavity 110, it can act on the two clamping plates 140, thereby performing isostatic pressing on the battery cells.

[0052] Reference Figure 1 and Figure 3As shown, specifically, the clamping plate 140 is arranged at a right angle to the cross piece 120, that is, the clamping plate 140 is arranged vertically so that the clamping space 141 is arranged vertically. After the battery cell is placed in the clamping space 141 and the transfer component 300 places the material frame 100 into the isostatic pressing device 400, the vertical arrangement of the clamping plate 140 is conducive to the full contact between the clamping plate 140 and the battery cell and the oil. As the pressure in the isostatic pressing chamber gradually increases, the two clamping plates 140 can apply opposite clamping forces to the battery cell, which is conducive to the battery cell maintaining a laminated state in the material frame 100, so that the solid electrolyte and the electrode sheet are fully fitted. Under the transfer action of the transfer component 300, the material frame 100 can be placed in the isostatic pressing device 400. After the isostatic pressing medium penetrates the cavity 110, it can act on the two clamping plates 140, thereby performing isostatic pressing on the battery cell.

[0053] Reference Figure 1 and Figure 2 As shown, it can be understood that the material frame 100 also includes two limit blocks 160 connected to the inner wall of the cavity 110, and the two limit blocks 160 are respectively abutted against the ends of the two clamps 140 that are away from each other to limit the relative position relationship between the two clamps 140 and the cavity 110, that is, under the limiting action of the two limit blocks 160, the two clamps 140 can be initially positioned in the cavity 110, which is beneficial to realize the positioning of the battery cell in the cavity 110, and is beneficial to make the isostatic pressing effect of the battery cell more stable and reliable.

[0054] Reference Figure 1 and Figure 2 As shown, specifically, each of the two upper and lower opposite transverse pieces 120 is correspondingly provided with four limit blocks 160, wherein two limit blocks 160 are connected to the lower surface of the upper transverse piece 120, and the other two limit blocks 160 are connected to the upper surface of the lower transverse piece 120, and the upper and lower two groups of limit blocks 160 are arranged opposite to each other. After the two clamping plates 140 are preliminarily connected to the adjusting member 150, the upper ends of the two clamping plates 140 can be placed between the upper two limit blocks 160, and pressure can be applied to the upper ends of the two clamping plates 140 through the upper two limit blocks 160, and the two clamping plates 140 can be adjusted. 0 is placed between the two lower limit blocks 160, and pressure can be applied to the lower ends of the two clamps 140 through the two lower limit blocks 160, so that the clamps 140 are arranged at right angles to the cross piece 120, that is, the clamps 140 are vertically arranged, so that the clamping space 141 is vertically arranged. When the battery cell is placed in the clamping space 141, and the transfer assembly 300 places the material frame 100 into the isostatic pressing equipment 400, the vertical arrangement of the clamps 140 is conducive to full contact between the clamps 140 and the battery cell and the oil, which is conducive to improving the isostatic pressing treatment effect of the battery cell.

[0055] Reference Figure 1 and Figure 2As shown, it can be understood that the adjustment member 150 also includes a bolt 151 and a nut 152, and the clamping plate 140 is provided with a through hole. The bolt 151 passes through the through holes of the two clamping plates 140 and is threadedly connected with the nut 152. After the user places the battery cell into the clamping space 141, by adjusting the screwing length of the nut 152 and the bolt 151, the bolt 151 and the nut 152 apply opposite clamping forces to the two clamping plates 140, which is beneficial for the battery cell to maintain a covering or combined state in the material frame 100. Under the transfer action of the transfer assembly 300, the material frame 100 can be placed in the isostatic pressing equipment 400. After the isostatic pressing medium penetrates the cavity 110, it can act on the two clamping plates 140, thereby performing isostatic pressing on the battery cell, so that the solid electrolyte of the battery cell is fully fitted with the electrode sheet.

[0056] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, each of the four corners of each clamping plate 140 is provided with perforations, and every two clamping plates 140 are adapted to correspond to four adjusting members 150, and the four adjusting members 150 are respectively connected to the four corners of the clamping plates 140, so as to realize multi-point connection and positioning of the two clamping plates 140, which is beneficial to limit the relative rotation of the two clamping plates 140 and improve the shape stability of the clamping space 141. Through the adjustment action of the four adjusting members 150, the two clamping plates 140 can be fully contacted with the battery cells located in the clamping space 141, so as to avoid the problem of disintegration caused by excessive loose overlapping of the battery cells.

[0057] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the material frame 100 is provided with a plurality of cavities 110. Specifically, two transverse pieces 120 and three connecting pieces 130 together form a combined component, and the cavities 110 correspond to the combined component one by one, that is, the cavities 110 are at least surrounded by two transverse pieces 120 and three connecting pieces 130. Among them, the plurality of cavities 110 are arranged in an upper and lower arrangement, and in two adjacent cavities 110, the lower transverse piece 120 of the upper cavity 110 is the upper transverse piece 120 of the lower cavity 110, that is, there is at least one common transverse piece 120 for the upper and lower cavities 110, which is conducive to saving the manufacturing cost of the material frame 100 and making the structure of the material frame 100 more compact.

[0058] Reference Figure 1 , Figure 2 and Figure 3As shown, the material frame 100 of the battery cell loading and unloading device is provided with a plurality of cavities 110, and each cavity 110 can allow the battery cells to enter, exit and be accommodated, that is, the material frame 100 can accommodate multiple groups of battery cells at a time, and the transfer component 300 of the battery cell loading and unloading device can realize the loading and unloading of multiple groups of battery cells relative to the isostatic pressing equipment 400 at a time, which is beneficial to improving the efficiency of battery cell loading and unloading, and is beneficial to avoiding the problem of battery cell damage caused by direct contact between the transfer component 300 and the battery cells, and can automatically realize the loading and unloading of battery cells relative to the isostatic pressing equipment 400, which is beneficial to improving the efficiency of battery cell loading and unloading.

[0059] Specifically, the material frame 100 has two cavities 110 arranged vertically.

[0060] It should be understood that in some other embodiments, the material frame 100 is provided with a plurality of cavities 110, and the plurality of cavities 110 are arranged at intervals in a transverse manner. The material frame 100 of the battery cell loading and unloading device is provided with a plurality of cavities 110, and each cavity 110 can allow the battery cell to enter, exit and be accommodated, that is, the material frame 100 can accommodate multiple groups of battery cells at a time, and the transfer component 300 of the battery cell loading and unloading device can realize the loading and unloading of multiple groups of battery cells relative to the isostatic pressing equipment 400 at a time, which is beneficial to improving the efficiency of the isostatic pressing treatment of the battery cells, and is beneficial to avoiding the problem of damage to the battery cells caused by direct contact between the transfer component 300 and the battery cells, and can automatically realize the loading and unloading of the battery cells relative to the isostatic pressing equipment 400, which is beneficial to improving the loading and unloading efficiency of the battery cells.

[0061] It should be understood that in some other embodiments, the material frame 100 is provided with three or more cavities 110 , and the number of the cavities 110 should match the depth of the isostatic chamber and be associated with the volume of the cavities 110 .

[0062] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that in this embodiment, specifically, the workbench 200 includes a supporting plate 210 and a collector, the upper end of the supporting plate 210 is used to carry the material frame 100, and the supporting plate 210 is provided with a plurality of second leakage holes 211, and the collector is arranged below the supporting plate 210, and the transfer assembly 300 can take the battery cell out of the isostatic pressing device 400 after the isostatic pressing treatment, and transfer the material frame 100 from the isostatic pressing device 400 to the workbench 200, and the oil drips onto the supporting plate 210 after passing through the cavity 110, and passes through the second leakage holes 211 to converge to the collector, that is, the battery cell loading and unloading device can realize the collection of the isostatic pressing medium after the isostatic pressing treatment through the cooperation of the supporting plate 210 and the collector, which is beneficial to the reuse of the isostatic pressing medium, and is beneficial to saving energy and reducing the operating cost of the battery cell loading and unloading device.

[0063] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, the collector includes a support frame, and the support frame has a collecting chamber which gradually shrinks from top to bottom. The support frame is arranged below the supporting plate 210 and connected to the supporting plate 210. The upper end opening of the collecting chamber is larger than the coverage area of ​​the multiple second leakage holes 211. The transfer assembly 300 can take the battery cell out of the isostatic pressing device 400 after the isostatic pressing treatment, and transfer the material frame 100 from the isostatic pressing device 400 to the workbench 200. The oil passes through the cavity 110 and drips onto the supporting plate 210, and passes through the second leakage holes 211 to converge to the collector. That is, the battery cell loading and unloading device can realize the collection of the isostatic pressing medium after the isostatic pressing treatment through the cooperation of the supporting plate 210 and the collector, which is beneficial to the reuse of the isostatic pressing medium, saving energy, and reducing the operating cost of the battery cell loading and unloading device.

[0064] It should be understood that in some other embodiments, the collector also includes a pump body, which is connected to the lower end of the collecting chamber. Under the pressure change action of the pump body, the oil gathered at the lower end of the collecting chamber is supplied to the isostatic pressing chamber of the isostatic pressing equipment 400 again to realize the reuse of the oil, which is beneficial to saving energy and reducing the operating cost of the battery cell loading and unloading device.

[0065] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that in this embodiment, the upper end surface of the support plate 210 has a loading station 230, a discharging station 240 and a heat dissipation station 220 arranged in sequence, and the workbench 200 also includes a fan 260 and a plurality of enclosures 250. The support plate 210 has a heat dissipation station 220 connected to a plurality of second leakage holes 211, and a plurality of enclosures 250 are arranged around the heat dissipation station 220. The fan 260 is connected to the workbench 200, and the air outlet of the fan 260 is opposite to the heat dissipation station 220.

[0066] Reference Figure 1 , Figure 2 and Figure 3As shown, considering that the temperature of the battery cell will increase under the isostatic pressure of the isostatic pressing device 400, and the isostatic pressing medium is attached to the battery cell, the support plate 210 has a heat dissipation station 220 connected to the plurality of second leak holes 211, a plurality of enclosures 250 are arranged around the heat dissipation station 220, and the fan 260 is connected to the workbench 200, and the air outlet of the fan 260 is opposite to the heat dissipation station 220. Under the transfer action of the transfer component 300, the material frame 100 loaded with the battery cell after the isostatic pressing is completed can be transferred to the heat dissipation station 220 of the support plate 210, and the plurality of enclosures 250 are arranged around the heat dissipation station 220. The plate 250 is arranged around the material frame 100 located at the heat dissipation station 220, and then the fan 260 is started. Under the blowing action of the fan 260, the heat dissipation of the battery cell is accelerated, and under the action of wind energy, it is helpful to accelerate the separation of the isostatic medium and the battery cell. The arrangement of the enclosure 250 is helpful to block the splashing isostatic medium, and to allow the isostatic medium to pass through the second leakage hole 211 connected to the heat dissipation station 220 and converge to the collector. That is, the battery cell loading and unloading device can realize the heat dissipation treatment of the battery cell after the isostatic pressing treatment is completed, which is helpful to improve the manufacturing efficiency of the battery cell.

[0067] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, a plurality of enclosures 250 are circumferentially arranged to fully surround the heat dissipation station 220, and a plurality of enclosure plates and the supporting plate 210 together form a heat dissipation cavity with an opening facing upward. The height of the enclosure 250 is higher than the height of the material frame 100, which is beneficial to avoid oil splashing outwards and causing damage to the personal safety of people in the workshop, and is beneficial to realizing automatic collection of oil.

[0068] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that the workbench 200 has two fans 260 arranged in an upper and lower manner at the heat dissipation station 220, and the fans 260 are connected to the enclosure 250. Under the transfer action of the transfer assembly 300, the material frame 100 loaded with the battery cells that have completed the isostatic pressing treatment can be hoisted into the heat dissipation cavity. The two fans 260 are respectively arranged opposite to the two cavities 110, which is beneficial to enhance the correspondence between the fans 260 and the cavities 110 or the battery cells. Under the blowing action of the fans 260, the heat dissipation of the battery cells is accelerated, and under the action of wind energy, it is beneficial to accelerate the separation of the isostatic pressing medium and the battery cells. The setting of the enclosure 250 is beneficial to blocking the splashing isostatic pressing medium.

[0069] The transfer component 300 first loads the material frame 100 at the loading station 230 into the isostatic pressing equipment 400 to realize isostatic pressing treatment of the battery cells. The material frame 100 loaded with the battery cells that have been processed by isostatic pressing is transferred by the transfer component 300 to the heat dissipation station 220 for heat dissipation treatment. After the heat dissipation is completed, the material frame 100 is transferred by the transfer component 300 to the unloading station 240. In conjunction with the external conveying mechanism, the material frame 100 can be automatically unloaded.

[0070] A plurality of enclosures 250 are also provided at the material discharging station 240 of the workbench 200. The plurality of enclosures 250 are semi-enclosed at the material discharging station 240. The plurality of enclosures 250 are provided with an exit at the material discharging station 240. An external conveying mechanism can move the material frame 100 located at the material discharging station 240 out from the exit.

[0071] Reference Figure 1 , Figure 2 and Figure 3 As shown, it can be understood that, specifically, the connecting component 320 includes a shell and a coil, and the material frame 100 is adapted to be made of a magnetic material. The shell is connected to the moving component 310, and the coil is arranged in the shell. Under the movement of the moving component 310, the shell can be moved closer to the material frame 100. The coil is configured to receive an input current to generate a magnetic field. The magnetic field generated by the coil can generate an attraction to the material frame 100, so as to realize the detachable connection between the connecting component 320 and the material frame 100. Under the movement of the moving component 310, the The material frame 100 can be hoisted into the isostatic pressing equipment 400. When the material frame 100 has been stably in contact with the isostatic pressing equipment 400, the coil can be de-energized to eliminate the attraction between the connecting component 320 and the material frame 100, thereby realizing the separation of the connecting component 320 from the material frame 100. The battery cell loading and unloading device is conducive to simplifying the connection or separation of the connecting component 320 and the material frame 100 through the structural setting of the connecting component 320, and is conducive to speeding up the loading and unloading efficiency of the battery cell relative to the isostatic pressing equipment 400.

[0072] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, the material frame 100 can be a ferromagnetic material, which refers to a material with strong magnetism, mainly including iron (Fe), cobalt (Co), nickel (Ni) and their alloys, such as stainless steel and certain types of steel. These materials can be quickly magnetized under the action of an external magnetic field, and can maintain a certain degree of magnetism after the external magnetic field is removed.

[0073] Reference Figure 1 , Figure 2 and Figure 4 As shown, it can be understood that the moving component 310 includes a first linear driving component, a second linear driving component and a rotating component.

[0074] Reference Figure 1 , Figure 2 and Figure 4 As shown, the first linear drive component includes a first motor, a first slide rail, a first rack, a first gear and a first slider, the first slide rail is arranged horizontally, the first rack extends along the length direction of the first slide rail and is connected to the first slide rail, the first slider is rotationally connected to the first gear, the first gear is meshed with the first rack, the first slider is slidingly connected along the length direction of the first slide rail, the first motor is transmission-connected to the first gear to drive the first gear to rotate forward and reverse, and the first slider is driven to be slidingly connected along the length direction of the first slide rail through the meshing of the first gear and the first rack.

[0075] Reference Figure 1 , Figure 2 and Figure 4 As shown, the second linear drive component includes a second motor, a second slide rail, a second rack, a second gear and a second slider. The second slide rail is vertically arranged and fixedly connected to the first slider. The second rack extends along the length direction of the second slide rail and is connected to the second slide rail. The second slider is rotatably connected to the second gear. The second gear is meshed with the second rack. The second slider is slidably connected along the length direction of the second slide rail. The second motor is transmission-connected to the second gear to drive the second gear to rotate forward and reverse. Through the meshing of the second gear and the second rack, the second slider is driven to be slidably connected along the length direction of the second slide rail.

[0076] Reference Figure 1 , Figure 2 and Figure 4 As shown, specifically, two groups of second linear drive members are arranged, wherein the second slide rail of one group of second linear drive members is fixedly connected to the first slider of the first linear drive member, and the second slide rail of the other group of second linear drive members is fixedly connected to the second slider of the upper group of second linear drive members. The arrangement of the two groups of second linear drive members is beneficial to improving the transfer stroke of the transfer assembly 300 along the height direction, and is beneficial to hoisting the material frame 100 into the isostatic pressing chamber of the isostatic pressing equipment 400, or hoisting the material frame 100 out of the isostatic pressing chamber of the isostatic pressing equipment 400, and transferring it to the workbench 200.

[0077] Reference Figure 1 , Figure 2 and Figure 4 As shown, the rotating component includes a third motor, which is fixedly connected to the second slider of another group of second linear drive components, and the output end of the third motor is transmission-connected to the housing to drive the housing to rotate along the transverse plane direction.

[0078] Reference Figure 1 , Figure 2 and Figure 4As shown, the transfer assembly 300 , under the cooperation of the first linear drive member, the second linear drive member and the rotating member, enables the connecting component 320 to move closer to or farther from the material frame 100 , so as to realize the connection component 320 being transported closer to or farther from the workbench 200 .

[0079] Reference Figure 1 , Figure 2 and Figure 4 As shown, a solid-state battery production line of an embodiment of the utility model includes: an isostatic pressing device 400; a battery cell loading and unloading device as shown in any of the above embodiments, and a transfer component 300 is used to transfer the material frame 100 between the workbench 200 and the isostatic pressing device 400.

[0080] Reference Figure 1 , Figure 2 and Figure 4 As shown, the solid-state battery production line includes an isostatic pressing device 400 and a cell loading and unloading device, the transfer component 300 is used to transfer the cell between the workbench 200 and the isostatic pressing device 400, so as to realize the loading and unloading of the cell, the cell loading and unloading device includes a material frame 100, the material frame 100 has a hollow cavity 110, the cavity 110 can allow the cell to enter and exit, that is, before loading the cell, the user needs to place the cell into the cavity 110 of the material frame 100, the workbench 200 is used to support the material frame 100, and the transfer component 300 includes a moving part 310 and a connecting part 320, the connecting part 320 is used to be detachably connected to the material frame 100, the moving part 310 is used to drive the connecting part 320 to move closer to or away from the workbench 200, that is, when the material frame 100 is placed on the workbench 200, the moving part 310 moves the connecting part 320 to the workbench 200. 0, the connecting component 320 can be brought close to the material frame 100, and the connecting component 320 and the material frame 100 can be detachably connected. Then, under the moving action of the moving component 310, the material frame 100 can be transferred to the isostatic pressing equipment 400 to realize the isostatic pressing treatment of the battery cell. Since the cavity 110 is hollowed out, the isostatic pressing medium can directly pass through the material frame 100 and act on the battery cell in the cavity 110, which is beneficial to ensure the isostatic pressing effect of the battery cell. The battery cell loading and unloading device accommodates the battery cell through the material frame 100, and automatically transfers the battery cell located in the material frame 100 through the transfer component 300, which is beneficial to avoid the problem of direct contact between the transfer component 300 and the battery cell causing damage to the battery cell, and can automatically realize the loading and unloading of the battery cell relative to the isostatic pressing equipment 400, which is beneficial to improve the loading and unloading efficiency of the battery cell.

[0081] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The battery cell loading and unloading device is characterized by: Applicable to loading and unloading of battery cells, the battery cell loading and unloading device comprises: A material frame having a hollowed-out cavity, wherein the battery cell can enter and exit the cavity; A workbench, used for supporting the material frame; The transfer assembly comprises a moving part and a connecting part, wherein the connecting part is used for being detachably connected to the material frame, and the moving part is used for driving the connecting part to move closer to or farther from the workbench.

2. The battery core loading and unloading device according to claim 1, characterized in that: The material frame includes two transverse pieces and a connecting piece. The two transverse pieces are arranged in an upper and lower spaced relationship. Two ends of the connecting piece are respectively connected to two opposite transverse pieces to jointly enclose the cavity.

3. The battery core loading and unloading device according to claim 2, characterized in that: The transverse sheet is provided with a plurality of first leakage holes which are communicated with the cavity.

4. The battery core loading and unloading device according to claim 1, characterized in that: The material frame also includes two clamping plates and an adjusting member arranged in the cavity. The two clamping plates are arranged opposite to each other and at intervals to jointly define a clamping space for the battery cell to enter and exit. Both the two clamping plates are connected to the adjusting member, and the adjusting member is used to adjust the spacing of the clamping space.

5. The battery core loading and unloading device according to claim 4, characterized in that: The material frame further comprises two limit blocks connected to the inner wall of the cavity, the two limit blocks respectively abut against the ends of the two clamps which are away from each other, so as to limit the relative position relationship between the clamps and the cavity; and / or, The adjusting member comprises a bolt and a nut. The clamping plate is provided with a through hole. The bolt passes through the through holes of the two clamping plates and is threadedly connected with the nut.

6. The battery core loading and unloading device according to any one of claims 1 to 4, characterized in that: The material frame is provided with a plurality of the cavities.

7. The battery core loading and unloading device according to claim 1, characterized in that: The workbench includes a supporting plate and a collector, the upper end of the supporting plate is used to support the material frame, the supporting plate is provided with a plurality of second leakage holes, the collector is located below the supporting plate, and the plurality of second leakage holes are opposite to the collector.

8. The battery core loading and unloading device according to claim 7, characterized in that: The workbench also includes a fan and multiple enclosures. The support plate has a heat dissipation station connected to multiple second leakage holes. Multiple enclosures are arranged around the heat dissipation station. The fan is connected to the workbench, and the air outlet of the fan is opposite to the heat dissipation station.

9. The battery core loading and unloading device according to claim 1, characterized in that: The connecting component comprises a shell and a coil. The shell is connected to the moving component. The coil is arranged in the shell. The coil is configured to receive an input current to generate a magnetic field. The material frame is made of a magnetic material.

10. Solid-state battery production line, characterized by: include: Isostatic pressing equipment; According to the battery cell loading and unloading device as described in any one of claims 1 to 9, the transfer assembly is used to transfer the material frame between the workbench and the isostatic pressing equipment.

Images