Fixture and battery production apparatus

Abstract

A fixture and a battery production apparatus. The fixture comprises: a first clamping member (101) and a second clamping member (102) that are detachably connected, wherein the first clamping member (101) and the second clamping member (102) are configured to clamp a solid-state battery (100) in a preset direction (X); at least one force-transmitting member (103), wherein the force-transmitting member (103) is configured, during clamping of the solid-state battery (100) by the first clamping member (101) and the second clamping member (102), to abut against the solid-state battery (100) and the first clamping member (101) and / or to abut against the solid-state battery (100) and the second clamping member (102); and an imaging mechanism (104), which is configured to acquire an image that at least represents the positional relationship when the force-transmitting member (103) abuts against the solid-state battery (100). The fixture can greatly reduce the risk of a short circuit in the solid-state battery (100) during clamping of the solid-state battery (100.

Description

Fixtures and battery production equipment

[0001] Cross-referencing

[0002] This disclosure incorporates, in its entirety, Chinese Patent Application No. 202421620321.7 entitled “Clamps and Battery Production Equipment”, filed on July 10, 2024. Technical Field

[0003] This application relates to the field of battery technology, and in particular to a fixture and battery production equipment. Background Technology

[0004] Energy conservation and emission reduction are key to the sustainable development of the automotive industry, and electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of this sustainable development. For electric vehicles, battery technology is a crucial factor in their development.

[0005] Solid-state batteries are batteries that use solid electrodes and solid electrolytes. Because the contact between the solid electrolyte particles significantly affects battery performance, solid-state batteries require testing. During testing, the solid-state battery is placed in a fixture, and appropriate external pressure is applied to maintain contact between the solid electrolyte particles, ensuring the battery performs optimally and allowing for the testing and study of its electrochemical performance.

[0006] However, when testing solid-state batteries using current fixtures, it is impossible to effectively control the pressure applied to the solid-state batteries by the fixtures, which makes the solid-state batteries prone to short circuits and thus cause them to fail.

[0007] Summary of the Invention

[0008] This application aims to at least address one of the technical problems existing in the prior art. Therefore, one objective of this application is to provide a clamp that solves the problem that clamps in the related art easily cause short circuits in solid-state batteries during clamping.

[0009] An embodiment of the first aspect of this application provides a clamp including a first clamping member and a second clamping member detachably connected to each other, the first clamping member and the second clamping member being used to clamp a solid-state battery along a predetermined direction. The clamp also includes at least one force-transmitting member, which is used to abut against the solid-state battery and the first clamping member, and / or against the solid-state battery and the second clamping member, during the clamping of the solid-state battery by the first clamping member and the second clamping member. The clamp also includes an imaging mechanism for acquiring an image that at least characterizes the positional relationship between the force-transmitting member and the solid-state battery when they abut against each other.

[0010] In the technical solution of this application embodiment, an imaging mechanism is used to acquire an image of the positional relationship between the force transmission component and the solid-state battery when they come into contact, making the relative positional relationship between the force transmission component and the solid-state battery visible. The first clamping component and the second clamping component are detachably connected, making it easy to remove the clamped solid-state battery. Then, based on the relative positional relationship between the force transmission component and the solid-state battery shown in the image, the positional relationship between the force transmission component and the solid-state battery is readjusted, so that the force transmission component can be placed centered or nearly centered with the solid-state battery. This allows the force transmission component to uniformly transmit pressure to the solid-state battery, greatly reducing the risk of short circuits due to uneven force on the solid-state battery.

[0011] In some embodiments, the imaging mechanism is used to image the force transmission member and the solid-state battery along a preset direction to acquire an image. The preset direction is the direction in which the first clamping member and the second clamping member clamp the solid-state battery, and the force transmission member is located on the solid-state battery along the preset direction. Imaging the force transmission member and the solid-state battery in the preset direction allows the acquired image to show the position of the force transmission member on the solid-state battery, thereby enabling a determination of whether further adjustment is needed based on the current position of the force transmission member on the solid-state battery.

[0012] In some embodiments, the imaging mechanism is further configured to acquire, based on the image, the angle between the orthographic projections of any side of the force transmission member and any side of the solid-state battery in a direction perpendicular to a preset direction. Thus, it is possible to determine whether the sides of the force transmission member and the solid-state battery that are adjacent to each other in the width direction or in the length direction are placed parallel to each other based on the angle between the side of the force transmission member and the side of the solid-state battery, thereby helping operators determine whether the force transmission member and the solid-state battery are centered.

[0013] In some embodiments, the force transmission member has a first side along the length direction and a second side along the width direction. The imaging mechanism is further configured to obtain, based on the image, the minimum distance between the first side and the orthographic projection of the solid-state battery in a direction perpendicular to a preset direction, and the minimum distance between the second side and the orthographic projection of the solid-state battery in a direction perpendicular to the preset direction. This allows for determination of whether the force transmission member and the solid-state battery meet the requirements for centering. If the minimum distances between the two first sides and the orthographic projections of the solid-state battery in a direction perpendicular to the preset direction differ significantly, it can be determined that the force transmission member has shifted relative to the solid-state battery in the length direction. Similarly, if the minimum distances between the two second sides and the orthographic projections of the solid-state battery in a direction perpendicular to the preset direction differ significantly, it can be determined that the force transmission member has shifted relative to the solid-state battery in the width direction. This helps operators adjust the positions of the force transmission member and the solid-state battery based on different detection results.

[0014] In some embodiments, the imaging mechanism is further configured to image the first clamping member and the second clamping member along a preset direction, and the image is used to characterize the positional relationship between the first clamping member, the force transmission member, the solid-state battery, and the second clamping member. This visualizes the positional relationship between the first clamping member, the second clamping member, the force transmission member, and the solid-state battery, allowing for assessment of the suitability of the first and second clamping members' gripping of the solid-state battery based on the image. This enables adjustments to the positions of the solid-state battery and the force transmission member, ensuring that the first clamping member, the second clamping member, the force transmission member, and the solid-state battery are centered or nearly centered, improving the uniformity of pressure transmission to the solid-state battery, and further reducing the risk of short circuits due to uneven force on the solid-state battery.

[0015] In some embodiments, the imaging mechanism is further configured to acquire, based on the image, the angle between the orthographic projections of any side of the force transmission member and any side of the first clamping member in a direction perpendicular to a preset direction, and / or acquire the angle between the orthographic projections of any side of the force transmission member and any side of the second clamping member in a direction perpendicular to a preset direction. This allows for determination of whether the first clamping member and the force transmission member are aligned, and / or whether the second clamping member and the force transmission member are aligned, helping operators adjust the positions of the force transmission member and the solid-state battery based on different detection results, so that the force transmission member is aligned with the first clamping member and / or the second clamping member.

[0016] In some embodiments, the imaging mechanism includes an ultrasonic imaging device. The ultrasonic waves emitted by the ultrasonic imaging device can pass through the force transmission element and the solid-state battery, and even when the solid-state batteries are in contact with each other, an image including the contact interface between the force transmission element and the solid-state battery can be acquired, so that the acquired image can clearly and accurately characterize the position of the force transmission element on the solid-state battery.

[0017] In some embodiments, the ultrasound imaging apparatus includes: an ultrasound generator for emitting ultrasound waves; and an ultrasound receiver, wherein the ultrasound waves reach the receiver after propagating at least through a force transmission element and a solid-state battery, and the ultrasound receiver generates an electrical signal required for image acquisition based on the received ultrasound waves. The ultrasound generator and the ultrasound receiver are respectively mounted on opposite sides of a first clamping element and a second clamping element. The emitted ultrasound waves propagate in the force transmission element and the solid-state battery. During propagation, the ultrasound waves undergo phenomena such as reflection, scattering, and refraction, and their propagation speed varies in media of different densities. Thus, by utilizing the different propagation speeds of the ultrasound waves in the force transmission element and the solid-state battery, the generated images can separately characterize the positions of the force transmission element and the solid-state battery.

[0018] In some embodiments, the clamp further includes: a base; a plurality of support columns connected to the base, wherein the first clamping member and the second clamping member are sequentially and movably sleeved on the plurality of support columns in a direction away from the base; and an adjusting member for adjusting the distance between the first clamping member and the second clamping member to clamp the solid-state battery. The base and support columns provide support for the first and second clamping members, and the adjusting member adjusts the distance between the first and second clamping members to clamp or release the solid-state battery, facilitating the removal of the solid-state battery from the first and second clamping members. This allows operators to quickly adjust the positional relationship between the solid-state battery and the force transmission member based on acquired images, ensuring that the force transmission member and the solid-state battery are centered or nearly centered to apply uniform pressure to the solid-state battery.

[0019] In some embodiments, the support column has external threads, and the adjusting member has a mounting hole. The inner wall of the mounting hole has an internal thread that matches the external threads. The adjusting member is fitted onto the support column extending from the second clamping member away from the base through the mounting hole. By adjusting the degree to which the adjusting member is screwed into the support column, the distance between the first clamping member and the second clamping member can be adjusted to clamp or release the solid-state battery, making the fixture assembly quick and efficient. At the same time, the clamping force of the first clamping member and the second clamping member on the solid-state battery can also be adjusted by adjusting the degree of tightening of the adjusting member, thereby adapting to different testing requirements of the solid-state battery.

[0020] In some embodiments, the ultrasonic generator is mounted on the surface of the second clamping member away from the base, and the ultrasonic receiver is mounted on the side of the base closer to the first clamping member. Thus, the ultrasonic waves emitted by the ultrasonic generator pass sequentially through the second clamping member, the force transmission member, the solid-state battery, and the first clamping member, thereby enabling imaging of the positional relationship between the first clamping member, the second clamping member, the solid-state battery, and the force transmission member. Furthermore, the ultrasonic generator and ultrasonic receiver are respectively positioned on the sides of the first and second clamping members that are far apart from each other, so as not to affect the clamping of the solid-state battery by the first and second clamping members.

[0021] In some embodiments, the fixture further includes a pressure detection mechanism located on the surface of the base near the first clamping member, and an ultrasonic receiver located on the surface of the pressure detection mechanism away from the base. The pressure detection mechanism can detect the pressure exerted on the solid-state battery by the first and second clamping members in real time, thereby effectively controlling the magnitude of the pressure on the solid-state battery and improving the accuracy of the test results. Furthermore, the ultrasonic receiver being located on the surface of the pressure detection mechanism away from the base ensures that the structure on the base in contact with the first clamping member is solely the ultrasonic receiver; that is, pressure is transmitted to the first clamping member only through the ultrasonic receiver. This results in a more uniform distribution of the external force received by the first clamping member, thus maintaining the uniformity of the force exerted on the solid-state battery by the first and second clamping members.

[0022] In some embodiments, the number of force transmission components is two. The force transmission components are used to transmit force between the solid-state battery and the first clamping component and the second clamping component, which ensures the stress strength of the solid-state battery to a certain extent. By setting two force transmission components, the stress on the two opposite surfaces of the solid-state battery can be kept as consistent as possible, thereby further improving the uniformity of the stress on the solid-state battery.

[0023] An embodiment of the second aspect of this application provides a battery production apparatus that includes the fixture described in the above embodiments.

[0024] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0025] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0026] Figure 1 is a schematic diagram of the structure of a solid-state battery according to some embodiments of this application;

[0027] Figure 2 is a schematic front view of the fixture according to some embodiments of this application;

[0028] Figure 3 is one of the schematic diagrams of images acquired by the imaging mechanism of some embodiments of this application;

[0029] Figure 4 is a second schematic diagram of images acquired by the imaging mechanism of some embodiments of this application;

[0030] Figure 5 is a third schematic diagram of images acquired by the imaging mechanism of some embodiments of this application;

[0031] Figure 6 is a fourth schematic diagram of images acquired by the imaging mechanism of some embodiments of this application;

[0032] Figure 7 is a three-dimensional structural schematic diagram of the clamp according to some other embodiments of this application;

[0033] Figure 8 is a front view structural schematic diagram of the clamp according to some other embodiments of this application;

[0034] Figure 9 is a side view of the fixture according to some other embodiments of this application;

[0035] Figure 10 is a top view of the fixture according to some other embodiments of this application. Detailed Implementation

[0036] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0038] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0039] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0040] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0041] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0042] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0043] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0044] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0045] Solid-state batteries typically use solid electrolytes composed of various solid particles, and the contact performance between these particles has a significant impact on battery performance. For example, weak contact between solid particles can lead to low transport kinetics of charged ions between them, thus affecting battery performance.

[0046] In related technologies, the performance of solid-state batteries is tested. Before testing, the solid-state battery is placed in the clamping components of a fixture, and a force-transmitting component is used between the solid-state battery and the clamping components to ensure the strength of the solid-state battery under stress. During testing, the fixture applies a certain pressure to the solid-state battery to maintain contact between the solid particles, so that the solid-state battery can perform normally and improve the accuracy of the test results.

[0047] However, in related technologies, the solid-state battery and force transmission component are manually placed in the fixture. This can lead to an inconsistent placement of the force transmission component on the solid-state battery, potentially causing it to shift relative to the battery. For example, if the force transmission component only covers a portion of the solid-state battery's surface, when the clamping component applies force to the battery through the component, the portion of the battery in contact with the component will experience greater force, while the portion not in contact will experience less force. This uneven force distribution can lead to short circuits in the solid-state battery. Alternatively, even if the force transmission component covers the entire surface of the solid-state battery, if the distance between the centerline of the component and the centerline of the battery in the direction perpendicular to the preset direction is too large, the force transmission components on opposite sides of the battery will be asymmetrical, also resulting in uneven force distribution.

[0048] Based on the above considerations, to address the issue of short circuits in solid-state batteries during clamping, a clamp is designed. The clamp includes a first clamping member and a second clamping member detachably connected for holding the solid-state battery. The clamp also includes at least one force-transmitting member, which abuts against the solid-state battery and the first clamping member, and / or against the solid-state battery and the second clamping member, during the clamping of the solid-state battery by the first and second clamping members. The clamp further includes an imaging mechanism for acquiring an image characterizing at least the positional relationship between the force-transmitting member and the solid-state battery when they are in contact.

[0049] By setting up an imaging mechanism to acquire an image of the positional relationship between the force transmission component and the solid-state battery when they come into contact, the relative positional relationship between the force transmission component and the solid-state battery is visualized. The first and second clamping components are detachably connected, facilitating the removal of the clamped solid-state battery. Then, based on the relative positional relationship between the force transmission component and the solid-state battery shown in the image, the positional relationship between the force transmission component and the solid-state battery is readjusted, so that the force transmission component can be placed in a centered or nearly centered position with the solid-state battery. This allows the force transmission component to uniformly transmit pressure to the solid-state battery, greatly reducing the risk of short circuits due to uneven force on the solid-state battery.

[0050] The solid-state batteries disclosed in this application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power system incorporating the solid-state batteries disclosed in this application can be used to construct such an electrical device, thereby improving the stability of the power system and battery life.

[0051] This application provides an electrical device that uses a solid-state battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0052] Please refer to Figure 1, which is a schematic diagram of the structure of a solid-state battery according to some embodiments of this application.

[0053] The solid-state battery 100 includes a positive electrode, a negative electrode, and a solid electrolyte. The solid electrolyte is located between the positive and negative electrodes and forms an ion channel between them, ensuring the transfer and reaction of positive and negative ions. The material of the solid electrolyte can include oxides, phosphates, silicates, nitrides, or sulfides. The positive electrode, negative electrode, and the solid electrolyte sandwiched between them are wound or stacked to form the solid-state battery 100. The portions of the positive and negative electrodes containing active material constitute the main body 10 of the solid-state battery 100, while the portions of the positive and negative electrodes without active material constitute tabs 11. The tabs 11 can be located together at one end of the main body 10 or at both ends of the main body 10. The solid-state battery 100 can be rectangular, cylindrical, or other shapes.

[0054] Referring to Figures 2 to 4, Figure 2 is a schematic diagram of the main structure of a fixture according to some embodiments of the present application; Figure 3 is a schematic diagram of an image acquired by an imaging mechanism according to some embodiments of the present application; and Figure 4 is a schematic diagram of an image acquired by an imaging mechanism according to some embodiments of the present application.

[0055] This application provides a clamp including a first clamping member 101 and a second clamping member 102 detachably connected, which are used to clamp a solid-state battery 100 along a preset direction X. The clamp also includes at least one force-transmitting member 103, which abuts against the solid-state battery 100 and the first clamping member 101, and / or against the solid-state battery 100 and the second clamping member 102 during the clamping of the solid-state battery 100 by the first clamping member 101 and the second clamping member 102. The clamp also includes an imaging mechanism 104 for acquiring an image that at least characterizes the positional relationship between the force-transmitting member 103 and the solid-state battery 100 when they abut against each other.

[0056] The first clamping member 101 and the second clamping member 102 are arranged opposite each other in a preset direction X. The first clamping member 101 moves closer to each other to clamp the solid-state battery 100 in the preset direction X, and the first clamping member 101 and the second clamping member 102 move further apart from each other to release the solid-state battery 100.

[0057] The first clamping member 101 and the second clamping member 102 can be plate-shaped structures.

[0058] The force transmission component 103 is positioned between the first clamping component 101 and the solid-state battery 100, and / or between the second clamping component 102 and the solid-state battery 100, and serves to transmit force when the first clamping component 101 and the second clamping component 102 clamp the solid-state battery 100. Furthermore, the force transmission component 103 can also ensure the clamping stability of the first clamping component 101 and the second clamping component 102 on the solid-state battery 100 by adjusting and compensating for the gap between the first clamping component 101 and / or the second clamping component 102 and the solid-state battery 100.

[0059] There may be only one force transmission component 103, located between the first clamping component 101 and the solid-state battery 100, or between the second clamping component 102 and the solid-state battery 100. There may also be two force transmission components 103, located between the first clamping component 101 and the solid-state battery 100, and between the second clamping component 102 and the solid-state battery 100.

[0060] In some embodiments, the orthographic projection area of ​​the force transmission member 103 along a preset direction X may be smaller than the orthographic projection area of ​​the first clamping member 101 along a preset direction X. This allows the pressure applied by the first clamping member 101 and / or the second clamping member 102 to be concentrated on the force transmission member 103, thereby enhancing the transmission of force to the solid-state battery 100.

[0061] In other embodiments, the projected area of ​​the force transmission member 103 along the preset direction X can also be larger than the projected area of ​​the first clamping member 101 along the preset direction X. In this way, when the size of the solid-state battery 100 is larger than the size of the first clamping member 101 and the second clamping member 102, the force transmission member 103 can cover the surface of the solid-state battery 100, so that the force applied by the first clamping member 101 and the second clamping member 102 can be uniformly transmitted to the solid-state battery 100 through the force transmission member 103.

[0062] In some embodiments, the projected area of ​​the force transmission member 103 along the preset direction X can be larger than the projected area of ​​the solid-state battery 100 along the preset direction X. This ensures that when the force transmission member 103 comes into contact with the solid-state battery 100, the force transmission member 103 can cover the entire surface of the solid-state battery 100, thereby making the pressure on the solid-state battery 100 more uniform.

[0063] In other embodiments, the projected area of ​​the force transmission member 103 along the preset direction X may be equal to or less than the projected area of ​​the solid-state battery 100 along the preset direction X.

[0064] For example, the solid-state battery 100 has a length dimension of L1 and a width dimension of W1, the force transmission member 103 has a length dimension of L2 and a width dimension of W2, and the first clamping member 101 and the second clamping member 102 both have a length dimension of L3 and a width dimension of W3. The dimensions of the solid-state battery 100, the force transmission member 103, the first clamping member 101 and the second clamping member 102 can have the following relationships: W1-10 mm < W2 < W1+10 mm (1) W1-50 mm < W3 < W1+50 mm (2) L1-10 mm < L2 < L1+10 mm (3) L1-50 mm < L3 < L1+50 mm (4)

[0065] Within the aforementioned range, the first clamping member, the force transmission member, and the second clamping member work together to apply relatively uniform pressure to the solid-state battery.

[0066] In some embodiments, the force transmission member 103 may be a plate-like structure, such as a gasket.

[0067] As shown in Figure 3, in some embodiments, the image representing the positional relationship between the force transmission member 103 and the solid-state battery 100 when they come into contact can be a positional relationship diagram of the solid-state battery 100 pointing towards the force transmission member 103 in the projection direction when the force transmission member 103 comes into contact with the solid-state battery 100. In this way, the position of the force transmission member 103 on the solid-state battery 100 can be seen intuitively from the image.

[0068] As shown in Figure 4, in some embodiments, the image representing the positional relationship between the force transmission member 103 and the solid-state battery 100 when they come into contact can also be a positional relationship diagram of the force transmission member 103 and the solid-state battery 100 in a direction perpendicular to a preset direction X. In this way, the relative position of the side of the solid-state battery 100 and the side of the force transmission member 103 can be seen from the image, thereby determining whether the force transmission member 103 is deviated from the solid-state battery 100. In the image shown in Figure 4, the force transmission member 103 is offset too much from the solid-state battery 100, causing the force transmission member 103 to not completely cover the solid-state battery 100.

[0069] If the force transmission component 103 is seen to be too far off from the solid-state battery 100 in the image, the positional relationship between the force transmission component 103 and the solid-state battery 100 can be readjusted by disassembling the first clamping component 101 and the second clamping component 102, so that the force transmission component 103 and the solid-state battery 100 are centered or nearly centered. Centering means that the orthographic projection of the centerline of the force transmission component 103 and the centerline of the solid-state battery 100 in the direction perpendicular to the preset X coincides. Nearly centered means that the angle between the orthographic projection of the centerline of the force transmission component 103 and the centerline of the solid-state battery 100 in the direction perpendicular to the preset X is between 0 degrees (°) and 5 degrees, and the distance between the orthographic projection of the centerline of the force transmission component 103 and the centerline of the solid-state battery 100 in the direction perpendicular to the preset X is between 0 mm and 5 mm.

[0070] In some embodiments, after adjusting the positions of the force transmission member 103 and the solid-state battery 100, the imaging mechanism 104 can also acquire an image again representing the positional relationship between the force transmission member 103 and the solid-state battery 100 when they come into contact, thereby verifying whether the positions of the force transmission member 103 and the solid-state battery 100 are as expected.

[0071] In the above technical solution, by setting an imaging mechanism 104 to obtain an image of the positional relationship between the force transmission component 103 and the solid-state battery 100 when they come into contact, the relative positional relationship between the force transmission component 103 and the solid-state battery 100 is visualized.

[0072] The first clamping member 101 and the second clamping member 102 are detachably connected, which facilitates the removal of the clamped solid-state battery 100. Then, based on the relative positional relationship between the force transmission member 103 and the solid-state battery 100 shown in the image, the positional relationship between the force transmission member 103 and the solid-state battery 100 is readjusted, so that the force transmission member 103 can be placed in a centered or nearly centered position with the solid-state battery 100. This allows the force transmission member 103 to uniformly transmit pressure to the solid-state battery 100, greatly reducing the risk of short circuit due to uneven force on the solid-state battery 100.

[0073] According to some embodiments of this application, the imaging mechanism 104 is used to image the force transmission member 103 and the solid-state battery 100 along a preset direction X to obtain an image.

[0074] The preset direction X is the direction in which the first clamping member 101 and the second clamping member 102 clamp the solid-state battery 100, and the force transmission member 103 is located on the solid-state battery 100 along the preset direction X.

[0075] As shown in Figure 3, the force transmission component 103 and the solid-state battery 100 are imaged in a preset direction X, that is, in the projection direction of the solid-state battery 100 pointing to the force transmission component 103, so as to obtain the relative positional relationship between the surface of the force transmission component 103 along the preset direction X and the surface of the solid-state battery 100 along the preset direction X.

[0076] In the above technical solution, the acquired image can display the position of the force transmission component 103 on the solid-state battery 100, and then it can be determined whether further adjustment is needed based on the current position of the force transmission component 103 on the solid-state battery 100.

[0077] Referring to Figure 5, Figure 5 is a third schematic diagram of images acquired by the imaging mechanism of some embodiments of this application.

[0078] According to some embodiments of this application, the imaging mechanism 104 is also used to obtain, based on the image, the angle between the orthographic projection of any side of the force transmission member 103 and any side of the solid-state battery 100 in a direction perpendicular to a preset direction X.

[0079] The force transmission component 103 may have two first sides 103a along the length direction and two second sides 103b along the width direction, and the solid-state battery 100 may have two third sides 100a along the length direction and two fourth sides 100b along the width direction.

[0080] In some embodiments, the force transmission member 103 is rectangular in shape, and the solid-state battery 100 is rectangular in shape. When the force transmission member 103 and the solid-state battery 100 are placed centered, the first side 103a is parallel to the third side 100a, the second side 103b is parallel to the fourth side 100b, the first side 103a is perpendicular to the fourth side 100b, and the second side 103b is perpendicular to the third side 100a.

[0081] For example, the imaging mechanism 104 can obtain a first angle θ1 between the first side 103a of the force transmission member 103 and the third side 100a of the solid-state battery 100 in a direction perpendicular to a preset direction X based on the image. If the first angle θ1 is 0° to 5°, the positions of the first side 103a and the third side 100a are considered to be in line with expectations. If the first angle θ1 is an acute angle, right angle, or obtuse angle greater than 5°, the positional relationship between the force transmission member 103 and the solid-state battery 100 needs to be adjusted.

[0082] For example, the imaging mechanism 104 can also obtain a second angle θ2 between the orthographic projections of the first side 103a of the force transmission member 103 and the fourth side 100b of the solid-state battery 100 in a direction perpendicular to a preset direction X, based on the image. If the second angle θ2 is 85° to 95°, the positions of the first side 103a and the fourth side 100b are considered to be in line with expectations. If the second angle θ2 is less than 85° or greater than 95°, the positional relationship between the force transmission member 103 and the solid-state battery 100 needs to be adjusted.

[0083] For example, the imaging mechanism 104 can obtain a third angle θ3 between the orthographic projections of the second side 103b of the force transmission member 103 and the fourth side 100b of the solid-state battery 100 in a direction perpendicular to a preset direction X based on the image. If the third angle θ3 is 0° to 5°, the positions of the second side 103b and the fourth side 100b are considered to be in line with expectations. If the third angle θ3 is an acute angle, a right angle, or an obtuse angle greater than 5°, the positional relationship between the force transmission member 103 and the solid-state battery 100 needs to be adjusted.

[0084] For example, the imaging mechanism 104 can also obtain a fourth angle θ4 between the orthographic projections of the second side 103b of the force transmission member 103 and the third side 100a of the solid-state battery 100 in a direction perpendicular to a preset direction X, based on the image. If the fourth angle θ4 is 85° to 95°, the positions of the second side 103b and the third side 100a are considered to be in line with expectations. If the fourth angle θ4 is less than 85° or greater than 95°, the positional relationship between the force transmission member 103 and the solid-state battery 100 needs to be adjusted.

[0085] In some embodiments, the imaging mechanism 104 may have an image processing unit that can acquire the angle between any side of the force transmission member 103 shown in the image and any side of the solid-state battery 100.

[0086] The image processing unit can be any device or computer program conventional in the art capable of identifying and acquiring the angle between any side of the force transmission member 103 and any side of the solid-state battery 100 in an image.

[0087] In the above technical solution, it is possible to determine whether the sides of the force transmission component 103 and the solid-state battery 100 that are adjacent to each other in the width direction or in the length direction are placed parallel to each other based on the angle between the side of the force transmission component 103 and the side of the solid-state battery 100, thereby helping the staff to determine whether the force transmission component 103 and the solid-state battery 100 are centered.

[0088] Referring to FIG6, FIG6 is a fourth schematic diagram of images acquired by an imaging mechanism according to some embodiments of the present application.

[0089] According to some embodiments of this application, the force transmission member 103 has a first side 103a along the length direction and a second side 103b along the width direction. The imaging mechanism 104 is also used to obtain the minimum distance between the first side 103a and the solid-state battery 100 in the orthographic projection perpendicular to the preset direction X based on the image, and to obtain the minimum distance between the second side 103b and the solid-state battery 100 in the orthographic projection perpendicular to the preset direction X.

[0090] If the minimum distance between the two first sides 103a and the solid-state battery 100 in the orthographic projection perpendicular to the preset direction X differs too much, it can be determined that the force transmission member 103 has shifted relative to the solid-state battery 100 in the length direction. If the minimum distance between the two second sides 103b and the solid-state battery 100 in the orthographic projection perpendicular to the preset direction X differs too much, it can be determined that the force transmission member 103 has shifted relative to the solid-state battery 100 in the width direction.

[0091] For example, the imaging mechanism 104 can obtain the minimum distance between the orthographic projections of the adjacent first side 103a and the third side 100a of the solid-state battery 100 perpendicular to the preset direction X based on the image. Since both the first side 103a and the third side 100a have two minimum distances, these are denoted as the first distance d1 and the second distance d2, respectively. The imaging mechanism 104 can also obtain the minimum distance between the adjacent second side 103b and the fourth side 100b of the solid-state battery 100 perpendicular to the preset direction X based on the image. Since both the second side 103b and the fourth side 100b have two minimum distances, these are denoted as the third distance d3 and the fourth distance d4, respectively.

[0092] The positional requirements for centering or near-centering between the force transmission component 103 and the solid-state battery 100 can be determined based on the values ​​of the first distance d1, the second distance d2, the third distance d3, and the fourth distance d4. To determine whether they are centered, it is also necessary to consider the angle between the orthographic projections of any side of the force transmission component 103 and any side of the solid-state battery 100 in a direction perpendicular to a preset direction.

[0093] If the first distance d1 is equal to the second distance d2, it can be determined that the force transmission component 103 and the solid-state battery 100 meet the positional requirements of being centered in the width direction. If the third distance d3 is equal to the fourth distance d4, it can be determined that the force transmission component 103 and the solid-state battery 100 meet the positional requirements of being centered in the length direction.

[0094] If the first distance d1 and the second distance d2 are not equal, but their absolute values ​​are both between 5mm and 10mm, it can be determined that the force transmission component 103 and the solid-state battery 100 meet the requirement of near-center placement in the width direction. If the third distance d3 and the fourth distance d4 are not equal, but their absolute values ​​are both between 5mm and 10mm, it can be determined that the force transmission component 103 and the solid-state battery 100 meet the requirement of center placement in the length direction.

[0095] In some embodiments, the imaging mechanism 104 includes an image processing unit that can acquire the first distance d1, the second distance d2, the third distance d3, and the fourth distance d4 based on the image. The image processing unit can be any device or computer program conventional in the art capable of identifying the force transmission member 103 and the side of the solid-state battery 100 in the image, and capable of acquiring the distance between the side of the force transmission member 103 and the side of the solid-state battery 100.

[0096] Therefore, it is possible to determine whether the force transmission component 103 and the solid-state battery 100 meet the requirements for centering, which helps staff to adjust the position of the force transmission component 103 and the solid-state battery 100 based on different test results.

[0097] As shown in Figure 3, according to some embodiments of this application, the imaging mechanism 104 is also used to image the first clamping member 101 and the second clamping member 102 along a preset direction X. The image is used to characterize the positional relationship between the first clamping member 101, the force transmission member 103, the solid-state battery 100 and the second clamping member 102.

[0098] That is, imaging is performed in the projection direction from the first clamping member 101 to the second clamping member 102, thereby obtaining the relative positional relationship between the surfaces of the first clamping member 101 along the preset direction X, the force transmission member 103 along the preset direction X, the solid-state battery 100 along the preset direction X, and the second clamping member 102 along the preset direction X.

[0099] The above technical solution visualizes the positional relationship between the first clamping member 101, the second clamping member 102, the force transmission member 103, and the solid-state battery 100. This allows for the determination of whether the positions of the first clamping member 101 and the second clamping member 102 clamping the solid-state battery 100 are appropriate based on the image. Consequently, the positions of the solid-state battery 100 and the force transmission member 103 can be adjusted so that the first clamping member 101, the second clamping member 102, the force transmission member 103, and the solid-state battery 100 can be placed in a centered or nearly centered manner. This improves the uniformity of pressure transmission to the solid-state battery 100 and further reduces the risk of short circuits due to uneven force on the solid-state battery 100.

[0100] According to some embodiments of this application, the imaging mechanism 104 is also used to obtain, based on the image, the angle between the orthographic projection of any side of the force transmission member 103 and any side of the first clamping member 101 in a direction perpendicular to the preset direction X, and / or to obtain the angle between the orthographic projection of any side of the force transmission member 103 and any side of the second clamping member 102 in a direction perpendicular to the preset direction X.

[0101] The first clamping member 101 has two fifth sides opposite each other along the length direction and two sixth sides opposite each other along the width direction. The second clamping member 102 has two seventh sides opposite each other along the length direction and two eighth sides opposite each other along the width direction.

[0102] In some embodiments, the first clamping member 101, the second clamping member 102, and the force transmitting member 103 are rectangular in shape. When the force transmitting member 103 is centered with the first clamping member 101, or with the second clamping member 102, the fifth side is parallel to the first side 103a of the force transmitting member 103, the sixth side is parallel to the second side 103b of the force transmitting member 103, the seventh side is parallel to the first side 103a of the force transmitting member 103, the eighth side is parallel to the second side 103b of the force transmitting member 103, the fifth side is perpendicular to the second side 103b, the sixth side is perpendicular to the first side 103a, the seventh side is perpendicular to the second side 103b, and the eighth side is perpendicular to the first side 103a.

[0103] The following explanation will be based on the example of the angle between the projection of any side of the first clamping member 101 and any side of the force transmission member 103 onto the orthogonal projection perpendicular to the preset direction X obtained by the imaging mechanism 104.

[0104] For example, the imaging mechanism 104 can obtain the angle between the orthographic projections of the fifth side and the first side 103a in the preset direction X based on the image. If the angle between the orthographic projections of the fifth side and the first side 103a in the preset direction X is 0° to 3°, then the positions of the fifth side and the first side 103a are considered to be as expected. If the angle between the orthographic projections of the fifth side and the first side 103a in the preset direction X is an acute angle, a right angle, or an obtuse angle greater than 3°, then the positional relationship between the first clamping member 101 and the force transmission member 103 needs to be adjusted.

[0105] For example, the imaging mechanism 104 can also obtain the angle between the orthographic projections of the fifth side and the second side 103b in the direction perpendicular to the preset direction X based on the image. If the angle between the orthographic projections of the fifth side and the second side 103b in the direction perpendicular to the preset direction X is 87° to 93°, then the positions of the fifth side and the second side 103b are considered to be as expected. If the angle between the orthographic projections of the fifth side and the second side 103b in the direction perpendicular to the preset direction X is less than 87° or greater than 93°, then the positional relationship between the first clamping member 101 and the force transmission member 103 needs to be adjusted.

[0106] For example, the imaging mechanism 104 can obtain the angle between the orthographic projections of the sixth side and the second side 103b in the preset direction X based on the image. If the angle between the orthographic projections of the sixth side and the second side 103b in the preset direction X is 0° to 3°, then the positions of the sixth side and the second side 103b are considered to be as expected. If the angle between the orthographic projections of the sixth side and the second side 103b in the preset direction X is an acute angle, a right angle, or an obtuse angle greater than 3°, then the positional relationship between the first clamping member 101 and the force transmission member 103 needs to be adjusted.

[0107] For example, the imaging mechanism 104 can also obtain the angle between the orthographic projections of the sixth side and the first side 103a in the direction perpendicular to the preset direction X based on the image. If the angle between the orthographic projections of the sixth side and the first side 103a in the direction perpendicular to the preset direction X is 87° to 93°, then the positions of the sixth side and the first side 103a are considered to be as expected. If the angle between the orthographic projections of the sixth side and the first side 103a in the direction perpendicular to the preset direction X is less than 87° or greater than 93°, then the positional relationship between the first clamping member 101 and the force transmission member 103 needs to be adjusted.

[0108] The angle between the projection of any side of the second clamping member 102 and any side of the force transmission member 103 onto the orthographic projection perpendicular to the preset direction X can be referred to the above description of the angle between any side of the first clamping member 101 and any side of the force transmission member 103.

[0109] In some embodiments, the imaging mechanism 104 may include an image processing unit that can acquire the angle between any side of the force transmission member 103 and any side of the first clamping member 101, and the angle between any side of the force transmission member 103 and any side of the second clamping member 102, as shown in the image. The image processing unit may be any device or computer program conventional in the art capable of identifying and acquiring the angle between any side of the force transmission member 103 and any side of the first clamping member 101 or the second clamping member 102 in the image.

[0110] In the above technical solution, it is possible to determine whether the first clamping member 101 and the force transmission member 103 are aligned, and / or to determine whether the second clamping member 102 and the force transmission member 103 are aligned. This helps the staff to adjust the position of the force transmission member 103 and the solid-state battery 100 based on different test results, so that the force transmission member 103 is aligned with the first clamping member 101 and / or the second clamping member 102.

[0111] According to some embodiments of this application, the imaging mechanism 104 includes an ultrasound imaging device.

[0112] The principle of ultrasound imaging devices is to use the propagation of ultrasound waves inside objects and the laws of reflection, scattering and refraction to image the internal structure of objects by receiving and processing the echo signals of sound waves.

[0113] The ultrasonic waves emitted by the ultrasonic imaging device can pass through the force transmission member 103 and the solid-state battery 100, thereby imaging the structure of the solid-state battery 100 and the force transmission member 103. It is understood that, because the solid-state battery 100 and the force transmission member 103 are clamped by the first clamping member 101 and the second clamping member 102, and the dimensions of the first clamping member 101 and the second clamping member 102 are larger than the dimensions of the force transmission member 103 and the solid-state battery 100, the positions of the solid-state battery 100 and the force transmission member 103 cannot be observed from the preset direction X. However, by emitting ultrasonic waves that pass through the force transmission member 103 and the solid-state battery 100, the ultrasonic imaging device can clearly image the structures located within the first clamping member 101 and the second clamping member 102 that are not visible to the naked eye. This allows for imaging of the positional relationship between the solid-state battery 100 and the force transmission member 103 even when the first clamping member 101 and the second clamping member 102 are actually clamping the solid-state battery 100, improving the reliability of the imaging results. Furthermore, if the positions of the force transmission component 103 and the solid-state battery 100 are as expected, the force transmission component 103 and the solid-state battery 100 can be imaged by the imaging mechanism 104 and then tested directly, which is beneficial to improving the efficiency of the solid-state battery 100 in the fixture assembly.

[0114] In the above technical solution, the ultrasonic waves emitted by the ultrasonic imaging device can pass through the force transmission member 103 and the solid-state battery 100. Even if the solid-state batteries 100 are in contact with each other, an image including the contact interface between the force transmission member 103 and the solid-state battery 100 can be obtained, so that the obtained image can clearly and accurately characterize the position of the force transmission member 103 on the solid-state battery 100.

[0115] In other embodiments, the imaging mechanism 104 may also include, but is not limited to, an ultrasound imaging device, such as an X-ray imaging device or any other mechanism capable of imaging the internal structure of an object.

[0116] It is understandable that, when the imaging mechanism 104 is used to obtain the positional relationship diagram of the force transmission component 103 and the solid-state battery 100 in a direction perpendicular to the preset direction X, the imaging mechanism 104 can also be a camera, which can directly take pictures of the side of the force transmission component 103 and the solid-state battery 100 from the outside.

[0117] Referring to FIG2, according to some embodiments of the present application, the ultrasonic imaging device includes: an ultrasonic generator 1041 for emitting ultrasonic waves; an ultrasonic receiver 1042, wherein the ultrasonic waves are transmitted at least via a force transmission member 103 and a solid-state battery 100 to reach the ultrasonic receiver 1042, and the ultrasonic receiver 1042 generates an electrical signal required for acquiring an image based on the received ultrasonic waves, wherein the ultrasonic generator 1041 and the ultrasonic receiver 1042 are respectively mounted on the side of the first clamping member 101 and the second clamping member 102 that are far apart from each other.

[0118] Ultrasonic waves undergo reflection, scattering, and refraction during propagation, and their propagation speed varies in media of different densities. Therefore, the differences in the speed of ultrasonic waves propagating through different objects can be used to obtain images that characterize different objects.

[0119] Ultrasonic waves emitted by the ultrasonic generator propagate through the force transmission element 103 and the solid-state battery 100. The ultrasonic structure receives the ultrasonic waves propagating through the force transmission element 103 and the solid-state battery 100 and converts the received ultrasonic waves into electrical signals. The imaging mechanism 104 also calculates and reconstructs an image with resolution characterizing the positional relationship between the force transmission element 103 and the solid-state battery 100 based on the electrical signals. In some embodiments, the imaging mechanism 104 may include an imaging unit, which may be a device conventional in the art, such as a computer, capable of converting electrical signals into images.

[0120] Since the ultrasonic generator 1041 and the ultrasonic receiver 1042 are located on opposite sides of the first clamping member 101 and the second clamping member 102, respectively, meaning the propagation direction of the ultrasonic waves is a preset direction X, the ultrasonic imaging device can image the force transmission member 103 and the solid-state battery 100 along the preset direction X. Furthermore, the ultrasonic waves can also pass through the first clamping member 101 and the second clamping member 102, meaning that the first clamping member 101 and the second clamping member 102 can also be imaged, so that the acquired image can characterize the positional relationship between the first clamping member 101, the force transmission member 103, the solid-state battery 100, and the second clamping member 102.

[0121] When assembling the solid-state battery 100 on the fixture, the first clamping member 101 and the second clamping member 102 can initially apply a small preload to the solid-state battery 100 to facilitate disassembly during subsequent adjustments to the positions of the solid-state battery 100 and the force transmission member 103. Subsequently, an ultrasonic imaging device is used to create an image, and the position between the solid-state battery 100 and the force transmission member 103 is readjusted based on the image generated by the ultrasonic imaging device. After the position adjustment, the first clamping member 101 and the second clamping member 102 re-clamp the solid-state battery 100. At this time, the clamping force applied by the first clamping member 101 and the second clamping member 102 to the solid-state battery 100 is the force required to test the solid-state battery 100, typically greater than the preload. For example, the preload can be 0.5 MPa to 5 MPa, and the force required to test the solid-state battery 100 can be 2 MPa to 50 MPa.

[0122] After the first clamping member 101 and the second clamping member 102 re-clamp the solid-state battery 100, the ultrasonic imaging device re-images the solid-state battery 100 and the force transmission member 103 to verify whether the position adjustment of the solid-state battery 100 and the force transmission member 103 meets the expectations.

[0123] Understandably, because the clamping forces of the first clamping member 101 and the second clamping member 102 on the solid-state battery 100 are inconsistent during the first and second imaging processes, the degree of contact between the force transmission member 103 and the solid-state battery 100 is inconsistent. Therefore, the ultrasonic frequency emitted by the ultrasonic imaging device during the first imaging process can be lower than that emitted during the second imaging process, so that the image generated by the ultrasonic imaging device has higher clarity.

[0124] In the above technical solution, the different propagation of ultrasonic waves in the force transmission component 103 and the solid-state battery 100 can be utilized to make the generated image represent the position of the force transmission component 103 and the solid-state battery 100 respectively.

[0125] Referring to Figures 7 to 10, Figure 7 is a three-dimensional structural schematic diagram of a clamp according to some embodiments of the present application; Figure 8 is a front view structural schematic diagram of a clamp according to some embodiments of the present application; Figure 9 is a side view structural schematic diagram of a clamp according to some embodiments of the present application; and Figure 10 is a top view structural schematic diagram of a clamp according to some embodiments of the present application.

[0126] According to some embodiments of this application, the clamp further includes: a base 105; a plurality of support columns 106 connected to the base 105, wherein a first clamping member 101 and a second clamping member 102 are sequentially and movably sleeved on the plurality of support columns 106 in a direction away from the base 105; and an adjusting member 107 for adjusting the distance between the first clamping member 101 and the second clamping member 102 so that the first clamping member 101 and the second clamping member 102 clamp the solid-state battery 100.

[0127] The support column 106 may have a first end and a second end, the first end of which may be fixed to the base 105, and the second end of which extends beyond the second clamping member 102. The first clamping member 101 may have a plurality of first mounting holes extending through it along its thickness direction, and the second clamping member 102 may have a plurality of second mounting holes extending through it along its thickness direction. The first clamping member 101 and the second clamping member 102 may be slidably fitted onto the support column 106 through the first mounting holes and the second mounting holes, respectively.

[0128] Multiple support columns 106 can pass through the outer regions of the first clamping member 101 and the second clamping member 102 and be distributed in a ring. The force transmission member 103 and the solid-state battery 100 can be located within the space enclosed by the multiple support columns 106.

[0129] In some embodiments, the base 105 may be a plate-like structure.

[0130] In some embodiments, the first clamping member 101, the second clamping member 102, and the base 105 may be made of metal, such as steel or other alloy materials. In one example, the first clamping member 101, the second clamping member 102, and the base 105 may all be steel plates.

[0131] Adjustment member 107 is used to adjust the first clamping member 101 and the second clamping member 102 to move closer to each other to clamp the solid-state battery 100, and to adjust the first clamping member 101 and the second clamping member 102 to move further apart to release the solid-state battery 100.

[0132] In the above technical solution, the base 105 and the support column 106 provide support for the first clamping member 101 and the second clamping member 102. The adjusting member 107 adjusts the distance between the first clamping member 101 and the second clamping member 102 to clamp or release the solid-state battery 100, facilitating the removal of the solid-state battery 100 from the first clamping member 101 and the second clamping member 102. This allows workers to quickly adjust the positional relationship between the solid-state battery 100 and the force transmission member 103 based on the acquired image, ensuring that the force transmission member 103 is centered or nearly centered with the solid-state battery 100, thus applying uniform pressure to the solid-state battery 100.

[0133] According to some embodiments of this application, the support column 106 has an external thread, the adjusting member 107 has an assembly hole, the inner wall surface of the assembly hole has an internal thread that matches the external thread, and the adjusting member 107 is sleeved on the support column 106 extending from the side of the second clamping member 102 away from the base 105 through the assembly hole.

[0134] The internal thread and external thread on the inner wall of the assembly hole match, so that the adjusting member 107 can be screwed into the support column 106, thereby achieving a fixed connection between the support column 106 and the adjusting member 107.

[0135] Adjusting member 107 is inserted into support post 106 from the second end of support post 106. When it is necessary to clamp solid-state battery 100, adjusting member 107 is screwed in from the second end of support post 106 towards the first end, so that the first clamping member 101 and the second clamping member 102 gradually move closer together. After the first clamping member 101 and the second clamping member 102 clamp the solid-state battery 100, as adjusting member 107 continues to be screwed in, the force applied to the solid-state battery 100 by the first clamping member 101 and the second clamping member 102 increases. When the required pressure for solid-state battery 100 is reached, screwing in adjusting member 107 is stopped, and the locking member is fixed in the current position.

[0136] For example, the adjusting member 107 may include, but is not limited to, a nut or similar structure.

[0137] In the above technical solution, by adjusting the degree to which the adjusting member 107 is screwed into the support column, the distance between the first clamping member 101 and the second clamping member 102 can be adjusted to clamp or loosen the solid-state battery 100, making the fixture assembly quick and efficient. At the same time, the clamping force of the first clamping member 101 and the second clamping member 102 on the solid-state battery 100 can also be adjusted by adjusting the degree of tightening of the adjusting member, thereby adapting to different testing requirements of the solid-state battery 100.

[0138] According to some embodiments of this application, an ultrasonic generator 1041 is mounted on the surface of the second clamp 102 away from the base 105, and an ultrasonic receiver 1042 is mounted on the side of the base 105 near the first clamp 101.

[0139] In some embodiments, the ultrasonic generator 1041 can be mounted on the surface of the second clamping member 102 away from the base 105 by means of bonding or the like, and the ultrasonic receiver 1042 can also be mounted on the side of the base 105 near the first clamping member 101 by means of bonding or the like.

[0140] In other embodiments, the ultrasonic receiver 1042 may also be mounted on the surface of the first clamp 101 near the base 105.

[0141] When the clamp holds the solid-state battery 100, the ultrasonic generator 1041 and the ultrasonic receiver 1042 also transmit the pressure applied to the solid-state battery 100 on opposite sides along the preset direction X. Based on this, in some embodiments, the ultrasonic generator 1041 and the ultrasonic receiver 1042 can be arranged facing each other along the preset direction X, that is, the orthographic projection of the ultrasonic generator 1041 along the preset direction X can coincide with the orthographic projection of the ultrasonic receiver 1042 along the preset direction X. This ensures that the force transmitted by the ultrasonic generator 1041 and the ultrasonic receiver 1042 to the solid-state battery 100 is all along the preset direction X, thereby making the force received by the solid-state battery 100 on different sides more consistent, which helps to maintain the uniformity of the force on the solid-state battery 100.

[0142] In the above technical solution, the ultrasonic waves emitted by the ultrasonic generator 1041 pass sequentially through the second clamping member 102, the force transmission member 103, the solid-state battery 100, and the first clamping member 101, thereby enabling imaging of the positional relationship between the first clamping member 101, the second clamping member 102, the solid-state battery 100, and the force transmission member 103. Furthermore, the ultrasonic generator 1041 and the ultrasonic receiver 1042 are respectively positioned on opposite sides of the first clamping member 101 and the second clamping member 102, thus not affecting the clamping of the solid-state battery 100 by the first clamping member 101 and the second clamping member 102.

[0143] According to some embodiments of this application, the fixture further includes a pressure detection mechanism 108, which is located on the surface of the base 105 near the first clamping member 101, and an ultrasonic receiver 1042 is located on the surface of the pressure detection mechanism 108 away from the base 105.

[0144] Understandably, since the first clamping member 101 and the second clamping member 102 are slidably sleeved on the support column 106, the first clamping member 101 will move relative to the base 105 until the first clamping member 101 abuts against the ultrasonic receiver 1042 on the base 105. In this way, the pressure transmitted to the solid-state battery 100 will be transmitted to the pressure detection mechanism 108 through the ultrasonic receiver 1042, so that the pressure detection mechanism 108 is also a link in the step of transmitting pressure to the solid-state battery 100. This allows the pressure detection mechanism 108 to detect the magnitude of the pressure transmitted to the solid-state battery 100 in real time. When the pressure detected by the pressure detection mechanism 108 meets the expectations, the screwing in of the adjusting member can be stopped.

[0145] In some embodiments, the ultrasonic receiver 1042 can be fixedly mounted on the pressure detection mechanism 108 by means of bonding or other methods.

[0146] In some embodiments, the pressure detection mechanism can be any device with pressure detection functionality, such as a pressure sensor.

[0147] In the above embodiments, the pressure detection mechanism 108 can detect the pressure applied to the solid-state battery 100 by the first clamping member 101 and the second clamping member 102 in real time, thereby effectively controlling the pressure on the solid-state battery 100 and improving the accuracy of the detection results of the solid-state battery 100. In addition, the ultrasonic receiver 1042 is located on the surface of the pressure detection mechanism 108 away from the base 105, so that the only structure on the base 105 that contacts the first clamping member 101 is the ultrasonic receiver 1042. That is, pressure is transmitted to the first clamping member 101 only through the ultrasonic receiver 1042, so that the external force received by the first clamping member 101 is more uniformly distributed, thereby maintaining the uniformity of the force applied to the solid-state battery 100 by the first clamping member 101 and the second clamping member 102.

[0148] According to some embodiments of this application, the number of force transmission elements 103 is two.

[0149] The two force transmission components 103 are located between the first clamping component 101 and the solid-state battery 100, and between the second clamping component 102 and the solid-state battery 100, respectively.

[0150] The two force transmission components 103 are designated as the first force transmission component 1031 and the second force transmission component 1032. In some embodiments, the imaging mechanism 104 can acquire images representing the positional relationship between the first force transmission component 1031 and the solid-state battery 100 when they are in contact, and images representing the positional relationship between the second force transmission component 1032 and the solid-state battery 100 when they are in contact. This allows for adjustment of the positions of the first force transmission component 1031 and the solid-state battery 100, and the second force transmission component 1032 and the solid-state battery 100, based on different images. When the imaging mechanism 104 also images the first clamping member 101 and the second clamping member 102, it can also acquire images representing the positional relationship between the first force transmission component 1031 and the first clamping member 101 when they are in contact, and images representing the positional relationship between the second force transmission component 1032 and the second clamping member 102 when they are in contact.

[0151] In the above technical solution, the force transmission component 103 is used to transmit force and pressure between the solid-state battery 100 and the first clamping component 101 and the second clamping component 102, which ensures the force strength of the solid-state battery 100 to a certain extent. By setting two force transmission components 103, the force on the two opposite surfaces of the solid-state battery 100 can be kept as consistent as possible, thereby further improving the uniformity of the force on the solid-state battery 100.

[0152] This application provides a battery production equipment, which includes the fixture described in the above embodiments.

[0153] Battery production equipment can be used for the production of solid-state batteries. For information on the structure of solid-state batteries, please refer to the above descriptions, which will not be repeated below.

[0154] Since using the fixture in the above embodiment to clamp the solid-state battery 100 can improve the uniformity of the force on the solid-state battery 100, it greatly reduces the risk of short circuit due to uneven force on the solid-state battery 100, thereby improving the reliability of testing the solid-state battery 100, and thus making the battery production equipment produce solid-state batteries 100 with a high yield.

[0155] This application provides a clamp, referring to Figures 1 to 10. The clamp includes a first clamping member 101 and a second clamping member 102 detachably connected, which are used to clamp a solid-state battery 100 along a preset direction X. The clamp also includes two force-transmitting members 103, which are respectively positioned between the solid-state battery 100 and the first clamping member 101, and between the solid-state battery 100 and the second clamping member 102, during the clamping of the solid-state battery 100 by the first clamping member 101 and the second clamping member 102. The clamp also includes an imaging mechanism 104 for acquiring an image that at least characterizes the positional relationship between the force-transmitting members 103 and the solid-state battery 100 when they are in contact.

[0156] The solid-state battery 100 has a length dimension of L1 and a width dimension of W1. The force transmission component 103 has a length dimension of L2 and a width dimension of W2. The first clamping component 101 and the second clamping component 102 both have a length dimension of L3 and a width dimension of W3. The dimensions of the solid-state battery 100, the force transmission component 103, the first clamping component 101, and the second clamping component 102 can have the following relationships: W1-10mm < W2 < W1+10mm (1) W1-50mm < W3 < W1+50mm (2) L1-10mm < L2 < L1+10mm (3) L1-50mm < L3 < L1+50mm (4)

[0157] The imaging mechanism 104 includes an ultrasonic imaging device, which comprises: an ultrasonic generator 1041 for emitting ultrasonic waves; and an ultrasonic receiver 1042, wherein the ultrasonic waves reach the ultrasonic receiver 1042 after propagating at least through the force transmission member 103 and the solid-state battery 100. The ultrasonic receiver 1042 generates an electrical signal required for acquiring an image based on the received ultrasonic waves. The ultrasonic generator 1041 and the ultrasonic receiver 1042 are respectively mounted on the sides of the first clamping member 101 and the second clamping member 102 that are far apart from each other. The ultrasonic waves can also pass through the first clamping member 101 and the second clamping member 102, that is, the first clamping member 101 and the second clamping member 102 can also be imaged so that the acquired image can characterize the positional relationship between the first clamping member 101, the force transmission member 103, the solid-state battery 100, and the second clamping member 102.

[0158] The clamp also includes: a base 105; and a plurality of support columns 106 connected to the base 105. A first clamping member 101 and a second clamping member 102 are sequentially and movably sleeved on the plurality of support columns 106 in a direction away from the base 105. The support columns 106 have external threads, and the clamp also includes a nut, which is sleeved on the support column 106 extending from the side of the second clamping member 102 away from the base 105.

[0159] The fixture also includes a pressure detection mechanism 108 located on the surface of the base 105 near the first clamping member 101, and an ultrasonic receiver 1042 located on the surface of the pressure detection mechanism 108 away from the base 105. An ultrasonic generator 1041 is mounted on the surface of the second clamping member 102 away from the base 105.

[0160] The imaging mechanism 104 is used to obtain the angle between the orthographic projection of any side of the force transmission member 103 and any side of the solid-state battery 100 in a direction perpendicular to the preset direction X based on the image.

[0161] The force transmission member 103 has a first side 103a along the length direction and a second side 103b along the width direction. The imaging mechanism 104 is also used to obtain the minimum distance between the first side 103a and the solid-state battery 100 in the orthographic projection perpendicular to the preset direction X based on the image, and to obtain the minimum distance between the second side 103b and the solid-state battery 100 in the orthographic projection perpendicular to the preset direction X.

[0162] The imaging mechanism 104 is also used to obtain, based on the image, the angle between any side of the force transmission member 103 disposed near the first clamping member 101 and the orthogonal projection of any side of the first clamping member 101 in a direction perpendicular to the preset direction X, and to obtain the angle between any side of the force transmission member 103 disposed near the second clamping member 102 and the orthogonal projection of any side of the second clamping member 102 in a direction perpendicular to the preset direction X.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A clamp, characterized in that, include: A detachably connected first clamping member (101) and second clamping member (102) are used to clamp the solid-state battery (100) along a preset direction (X); At least one force transmission member (103) is used to abut between the solid-state battery (100) and the first clamping member (101), and / or abut between the solid-state battery (100) and the second clamping member (102) during the period when the first clamping member (101) and the second clamping member (102) clamp the solid-state battery (100); An imaging mechanism (104) is used to acquire an image that at least characterizes the positional relationship between the force transmission member (103) and the solid-state battery (100) when they come into contact.

2. The clamp according to claim 1, characterized in that, The imaging mechanism (104) is used to image the force transmission member (103) and the solid-state battery (100) along the preset direction (X) to obtain the image.

3. The clamp according to claim 1 or 2, characterized in that, The imaging mechanism (104) is also used to obtain, based on the image, the angle between the orthographic projection of any side of the force transmission member (103) and any side of the solid-state battery (100) in a direction perpendicular to the preset direction (X).

4. The clamp according to any one of claims 1-3, characterized in that, The force transmission member (103) has a first side (103a) along the length direction and a second side (103b) along the width direction. The imaging mechanism (104) is also used to obtain, based on the image, the minimum distance between the first side (103a) and the solid-state battery (100) in a projection perpendicular to the preset direction (X), and to obtain the minimum distance between the second side (103b) and the solid-state battery (100) in a projection perpendicular to the preset direction (X).

5. The clamp according to any one of claims 1-4, characterized in that, The imaging mechanism (104) is also used to image the first clamping member (101) and the second clamping member (102) along the preset direction (X), and the image is used to characterize the positional relationship between the first clamping member (101), the force transmission member (103), the solid-state battery (100) and the second clamping member (102).

6. The clamp according to claim 5, characterized in that, The imaging mechanism (104) is also used to obtain, based on the image, the angle between the orthographic projection of any side of the force transmission member (103) and any side of the first clamping member (101) in a direction perpendicular to the preset direction (X), and / or to obtain the angle between the orthographic projection of any side of the force transmission member (103) and any side of the second clamping member (102) in a direction perpendicular to the preset direction (X).

7. The clamp according to any one of claims 1-6, characterized in that, The imaging mechanism (104) includes an ultrasound imaging device.

8. The clamp according to claim 7, characterized in that, The ultrasound imaging device includes: An ultrasonic generator (1041) is used to emit ultrasonic waves; An ultrasonic receiver (1042) is provided, wherein the ultrasonic waves are transmitted at least via the force transmission member (103) and the solid-state battery (100) to reach the ultrasonic receiver (1042), and the ultrasonic receiver (1042) generates an electrical signal required to acquire the image based on the received ultrasonic waves. The ultrasonic generator (1041) and the ultrasonic receiver (1042) are respectively mounted on the side of the first clamping member (101) and the second clamping member (102) that are far apart from each other.

9. The clamp according to claim 8, characterized in that, The clamp also includes: Base (105); Multiple support columns (106) are connected to a base (105). The first clamping member (101) and the second clamping member (102) are sequentially and movably sleeved on the multiple support columns (106) in a direction away from the base (105). An adjusting member (107) is used to adjust the distance between the first clamping member (101) and the second clamping member (102) so that the first clamping member (101) and the second clamping member (102) clamp the solid-state battery (100).

10. The clamp according to claim 9, characterized in that, The support column (106) has an external thread, and the adjusting member (107) has an assembly hole. The inner wall of the assembly hole has an internal thread that matches the external thread. The adjusting member (107) is sleeved on the support column (106) that extends out of the second clamping member (102) away from the base (105) through the assembly hole.

11. The clamp according to claim 9 or 10, characterized in that, The ultrasonic generator (1041) is mounted on the surface of the second clamp (102) away from the base (105), and the ultrasonic receiver (1042) is mounted on the side of the base (105) close to the first clamp (101).

12. The clamp according to any one of claims 9-11, characterized in that, The clamp also includes a pressure detection mechanism (108) located on the surface of the base (105) near the first clamping member (101), and the ultrasonic receiver (1042) located on the surface of the pressure detection mechanism (108) away from the base (105).

13. The clamp according to any one of claims 1-12, characterized in that, The number of the force transmission components (103) is two.

14. A battery manufacturing apparatus, characterized in that, Includes the clamp as described in any one of claims 1-13.

Images