An electrochemical in-situ XRD testing device

Abstract

This utility model discloses an electrochemical in-situ XRD testing device, including a top cover, a cell body, and an insulating base. The upper and lower ends of the cell body are threadedly connected to the top cover and the base, respectively. An XRD probe window is provided in the middle of the top of the top cover. A first mounting cavity and a second mounting cavity are respectively connected inside the cell body and the base. A pressure block is installed in the first mounting cavity near the XRD probe window, and the pressure block is connected to the first mounting cavity through an insulating sleeve. A metal mechanism is installed in the middle of the second mounting cavity. The bottom of the metal mechanism extends outward and is equipped with a second charge / discharge interface. The pressure block is connected to the top of the metal mechanism through a spring. A first charge / discharge interface is provided on one side of the cell body. The battery under test is located between the pressure block and the XRD probe window. This utility model can be quickly installed by simple rotation, greatly reducing assembly time and process and improving installation efficiency. The overall structure of this utility model is compact and exquisite, convenient to use and compatible with XRD equipment, and has good practicality.

Description

Technical Field

[0001] This invention belongs to the technical field of XRD in-situ testing, specifically relating to an electrochemical in-situ XRD testing device. Background Technology

[0002] With the rapid development of new energy sources, the demand for batteries is increasing, leading to a greater and deeper need for research on multiple batteries / battery materials. In-situ XRD (X-ray diffraction) testing can detect changes in battery materials during the charging and discharging process using X-rays. In-situ XRD testing is widely used in the research and development of electrode materials and is of great significance to battery material research. However, most current XRD in-situ charge-discharge devices are large in size and complex to assemble, generally using multiple screws for assembly. This assembly process is cumbersome, time-consuming, and the screws are prone to falling off, resulting in poor installation reliability. Utility Model Content

[0003] The purpose of this invention is to provide an electrochemical in-situ XRD testing device, which aims to achieve rapid and reliable installation.

[0004] This utility model is mainly achieved through the following technical solutions: An electrochemical in-situ XRD testing device includes a top cover, a cell body, and an insulating base. The upper and lower ends of the cell body are threadedly connected to the top cover and the base, respectively. An XRD probe window is provided in the middle of the top of the top cover. A first mounting cavity and a second mounting cavity are respectively connected inside the cell body and the base. A pressure block is installed in the first mounting cavity near the XRD probe window and is connected to the first mounting cavity through an insulating sleeve. A metal mechanism is installed in the middle of the second mounting cavity. The bottom of the metal mechanism extends outward and is equipped with a second charge / discharge interface. The pressure block is connected to the top of the metal mechanism through a spring. A first charge / discharge interface is provided on one side of the cell body. The battery under test is located between the pressure block and the XRD probe window.

[0005] To better realize this utility model, it further includes an anti-rotation mechanism disposed between the first mounting cavity and the pressure block, wherein the outer side of the pressure block is connected to the anti-rotation mechanism and the first mounting cavity through an insulating sleeve.

[0006] To better realize this utility model, the anti-rotation mechanism further includes a first protrusion and a second protrusion. The upper sidewall of the first mounting cavity is provided with a plurality of first protrusions along the circumference. The outer side of the pressure block is provided with a plurality of second protrusions along the circumference. The outer side of the insulating sleeve is provided with a plurality of outer grooves corresponding to the first protrusions, and the inner side is provided with a plurality of inner grooves corresponding to the second protrusions.

[0007] To better realize this utility model, the upper sidewall of the first mounting cavity is provided with two symmetrical first protrusions along the circumference, and the outer side of the pressure block is provided with two symmetrical second protrusions along the circumference, and the positions of the first protrusions and the second protrusions are perpendicular to each other.

[0008] To better realize this utility model, the outer sides of the pool body and the base are respectively stepped structures, the upper protrusion of the outer side of the pool body is threadedly connected to the upper cover, and the lower part of the first mounting cavity is threadedly connected to the upper protrusion of the outer side of the base.

[0009] To better realize this utility model, the metal mechanism further includes a metal ring and a metal plate arranged sequentially from top to bottom, the pressure block is connected to the metal ring by a spring, and the bottom of the metal plate extends outward and is equipped with a second charging and discharging interface.

[0010] To better realize this utility model, sealing mechanisms are further provided between the top of the pool body and the XRD probe window, between the bottom of the pool body and the base, between the pressure block and the insulating sleeve, and between the metal ring and the second mounting cavity.

[0011] To better realize this utility model, the sealing mechanism further includes a sealing groove and a sealing ring. The top and bottom of the pool body, as well as the periphery of the pressure block and the metal ring, are respectively provided with sealing grooves, and a sealing ring is provided in the sealing groove.

[0012] To better realize this utility model, the second mounting cavity is further provided, the metal plate is connected to the metal ring by screws, and one side of the metal plate extends out of the second mounting cavity and is provided with a second charging and discharging interface.

[0013] To better realize this utility model, the metal plate is further shaped like a racket, and the base is provided with an embedding groove communicating with the second mounting cavity, and the metal plate is engaged with the embedding groove.

[0014] To better realize this utility model, the pressure block is further provided with an annular groove on one side corresponding to the spring.

[0015] The beneficial effects of this utility model are as follows: The top cover, pool body, and base of this invention are connected by threads, allowing for quick installation with a simple rotation, greatly reducing assembly time and process, and improving installation efficiency. An anti-rotation mechanism is provided between the pressure block and the pool body, preventing displacement of the spring and pressure block when tightening the base during quick positioning and installation, thus improving operational reliability. This invention has a compact and exquisite overall structure, making it easy to use and compatible with XRD equipment, and possesses good practicality. Attached Figure Description

[0016] Figure 1 This is a top view of the electrochemical in-situ XRD testing device of this utility model; Figure 2 for Figure 1 Sectional view of AA; Figure 3 This is a schematic diagram of the three-dimensional structure of the pool. Figure 4 This is a top view of the pool. Figure 5 for Figure 4 CC section view; Figure 6 This is a schematic diagram of the insulating sleeve. Figure 7 This is a top view of the briquette; Figure 8 for Figure 7 DD section view; Figure 9 This is a bottom view of the base; Figure 10 for Figure 9 EE section view.

[0017] Wherein: 1-top cover, 2-pool body, 3-base, 4-beryllium window, 5-first mounting cavity, 6-insulating sleeve, 7-pressure block, 8-second mounting cavity, 9-metal ring, 10-metal plate, 11-first charging and discharging interface, 12-first protrusion, 13-second protrusion, 14-outer groove, 15-inner groove, 16-annular groove, 17-second charging and discharging interface. Detailed Implementation

[0018] Example 1: An electrochemical in-situ XRD testing device, such as Figure 1 and Figure 2 As shown, the device includes a top cover 1, a tank body 2, and an insulating base 3, which are threaded together from top to bottom. An XRD detection window is located in the center of the top cover 1. A pressure block 7 is correspondingly located in the first mounting cavity 5 in the center of the tank body 2, and an insulating sleeve 6 is provided between the pressure block 7 and the tank body 2. A metal mechanism is installed from top to bottom in the center of the base 3. A second charging / discharging interface 17 is installed at the bottom of the metal mechanism, extending outwards. A first charging / discharging interface 11 is located on one side of the tank body 2. One side of the pressure block 7 is connected to the metal mechanism via a spring. The battery under test is located between the XRD detection window and the pressure block 7. The second charging / discharging interface 17 is connected to one pole of the battery via the metal mechanism, spring, and pressure block 7. The other first charging / discharging interface 11 is connected to the other pole of the battery via the tank body 2, top cover 1, and XRD detection window. Preferably, the XRD detection window is a beryllium window 4.

[0019] Preferably, an anti-rotation mechanism is provided between the first mounting cavity 5 and the pressure block 7. The outer side of the pressure block 7 is connected to the anti-rotation mechanism and the first mounting cavity 5 through an insulating sleeve 6. The anti-rotation mechanism includes a first protrusion 12 and a second protrusion 13. The upper sidewall of the first mounting cavity 5 is provided with a plurality of first protrusions 12 along its circumference. The outer side of the pressure block 7 is provided with a plurality of second protrusions 13 along its circumference. The outer side of the insulating sleeve 6 is provided with a plurality of outer grooves 14 corresponding to the first protrusions 12, and the inner side is provided with a plurality of inner grooves 15 corresponding to the second protrusions 13.

[0020] In use, the battery under test is placed between the beryllium window 4 and the pressure block 7. The top cover 1 is screwed onto the cell body 2, at which point the battery under test is in contact with the pressure block 7 and is clamped and fixed by the spring. Then, the cell body 2 is screwed onto the base 3, and the positive and negative terminals are connected to the second charging / discharging interface 17 and the first charging / discharging interface 11. The second charging / discharging interface 17 at one end contacts one terminal of the battery through the base 3-metal plate 10-metal ring 9-spring-pressure block 7, and the first charging / discharging interface 11 at the other end contacts the other terminal of the battery through the cell body 2-top cover 1-beryllium window 4, forming a charging / discharging circuit. The top cover 1, cell body 2, and base 3 are threadedly connected and tightened to achieve compression sealing and form a conductive circuit.

[0021] The top cover 1, pool body 2, and base 3 of this invention are connected by threads, allowing for quick installation with a simple rotation, greatly reducing assembly time and process, and improving installation efficiency. An anti-rotation mechanism is provided between the pressure block 7 and the pool body 2, preventing displacement of the spring and pressure block 7 when tightening the base 3 during quick positioning and installation, thus improving operational reliability. This invention has a compact and exquisite overall structure, making it easy to use and adaptable to XRD equipment, and possesses good practicality.

[0022] Example 2: An electrochemical in-situ XRD testing device, such as Figure 1 and Figure 2 As shown, the overall structure is cylindrical, mainly composed of a top cover 1, a pool body 2, and a base 3 stacked together. The base 3 is an insulator. The top cover 1 is threaded onto the outer upper end of the pool body 2, and the base 3 is threaded onto the inner lower end. A beryllium window 4 is provided in the middle of the top cover 1. An insulating sleeve 6 and a pressure block 7 are installed sequentially from the outside to the inside of the stepped circular cavity formed inside the pool body 2. A metal ring 9 and a metal plate 10 are arranged sequentially from top to bottom in the middle of the base 3. The pressure block 7 abuts against the metal ring 9 by a spring. A second charging / discharging interface 17 and a first charging / discharging interface 11 are respectively provided on the metal plate 10 and the outer wall of the pool body 2. The battery under test is located between the pressure block 7 and the beryllium window 4.

[0023] Preferably, the beryllium window 4 is a metal disc. During tightening, the battery under test is located between the upper cover 1 and the upper end connection of the cell body 2, and the battery under test abuts against the edge of the beryllium window 4. Specifically, the edge of the beryllium window 4 is embedded in the limiting part inside the upper cover 1.

[0024] Preferably, the upper part of the first mounting cavity 5 has an internal annular insulating sleeve 6, and a pressure block 7 is placed inside the insulating sleeve 6. One side of the pressure block 7 has an annular groove 16 for placing a spring. Figure 9 and Figure 10 As shown, a second mounting cavity 8 is provided in the middle of the base 3, and a metal ring 9 and a metal plate 10 are sequentially arranged inside the second mounting cavity 8. One side of the metal ring 9 is connected to the pressure block 7 by a spring, and the other side is connected to the metal plate 10 by a screw. One side of the metal plate 10 extends outward and is provided with a second charging and discharging interface 17. Specifically, the metal plate 10 is racket-shaped and matches the corresponding groove of the base 3. The second mounting cavity 8 is provided with a limiting step corresponding to the metal ring 9, and the metal ring 9 is engaged with the second mounting cavity 8.

[0025] Preferably, such as Figures 3-5 As shown, the inner sidewall of the upper part of the first mounting cavity 5 is symmetrically provided with first protrusions 12. Figure 7 and Figure 8 As shown, the outer side wall of the pressure block 7 is symmetrically provided with second protrusions 13. Figure 6 As shown, the outer and inner surfaces of the insulating sleeve 6 are provided with symmetrical outer grooves 14 and inner grooves 15 to prevent rotation.

[0026] Preferably, such as Figure 2 As shown, the inner wall of the upper cover 1 is provided with internal threads, the outer side of the pool body 2 is a stepped cylinder, and the upper outer surface of the pool body 2 is provided with external threads to engage and lock with the internal threads of the upper cover 1. Figures 3-5 As shown, the pool body 2 has a stepped cylindrical first mounting cavity 5 in the middle, and the inner wall of the lower part of the first mounting cavity 5 is provided with internal threads; the outer side of the base 3 has a stepped structure, and the upper outer side of the base 3 is provided with external threads.

[0027] Preferably, such as Figure 2 As shown, the upper cover 1 and the pool body 2, the pool body 2 and the base 3, the metal ring 9 and the base 3, and the pressure block 7 and the insulating sleeve 6 are sealed by sealing rings. Through these sealing positions, the entire device forms a central sealed space. Specifically, the upper cover 1 has a groove in the middle for installing the beryllium window 4 (as an XRD probe), and the top of the pool body 2 has a groove for placing an O-ring. The O-ring abuts against the edge of the beryllium window 4 to form a sealing structure. The bottom of the pool body 2 has a sealing ring groove for placing the sealing ring to form a seal with the base 3.

[0028] In use, the battery is placed between the pressure block 7 and the beryllium window 4, and abuts against the insulating sleeve 6 and the pressure block 7, and is subjected to a certain pressure by the spring. After connecting the positive and negative terminals to the second charging / discharging interface 17 and the first charging / discharging interface 11, one end contacts one terminal of the battery through the base 3 → metal plate 10 → metal ring 9 → spring → pressure block 7, and the other end contacts the other terminal of the battery through the cell body 2 → top cover 1 → beryllium window 4, thus forming a charging / discharging circuit. The top cover 1 and the cell body 2 are fastened by a threaded connection, and the sealing ring is pressed to form a sealing and conductive circuit; the cell body 2 and the base 3 are fastened by a threaded connection, and the sealing ring is pressed to form a sealing and conductive circuit.

[0029] This invention eliminates the need for screws during the assembly of the top cover 1 and the tightening of the battery base 3, significantly reducing assembly time and improving efficiency. It also avoids delays caused by missing screws. The flanges and grooves of each component cooperate to limit assembly and prevent the spring from rotating during tightening of the base 3. The overall structure of this invention is compact, easy to use, and compatible with XRD equipment, demonstrating good practicality.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An electrochemical in-situ XRD testing device, characterized in that, The device includes a top cover (1), a pool body (2), and an insulating base (3). The upper and lower ends of the pool body (2) are threaded to the top cover (1) and the base (3), respectively. An XRD probe window is provided in the middle of the top of the top cover (1). The pool body (2) and the base (3) are respectively connected to a first mounting cavity (5) and a second mounting cavity (8). A pressure block (7) is installed in the first mounting cavity (5) near the XRD probe window, and the pressure block (7) is connected to the first mounting cavity (5) through an insulating sleeve (6). A metal mechanism is installed in the middle of the second mounting cavity (8). The bottom of the metal mechanism extends outward and is equipped with a second charging and discharging interface (17). The pressure block (7) is connected to the top of the metal mechanism through a spring. A first charging and discharging interface (11) is provided on one side of the pool body (2). The battery to be tested is located between the pressure block (7) and the XRD probe window.

2. The electrochemical in-situ XRD testing device according to claim 1, wherein, It also includes an anti-rotation mechanism disposed between the first mounting cavity (5) and the pressure block (7), wherein the outer side of the pressure block (7) is connected to the anti-rotation mechanism and the first mounting cavity (5) through an insulating sleeve (6).

3. The electrochemical in-situ XRD testing device according to claim 2, wherein, The anti-rotation mechanism includes a first protrusion (12) and a second protrusion (13). The upper sidewall of the first mounting cavity (5) is provided with a plurality of first protrusions (12) along the circumference. The outer side of the pressure block (7) is provided with a plurality of second protrusions (13) along the circumference. The outer side of the insulating sleeve (6) is provided with a plurality of outer grooves (14) corresponding to the first protrusions (12), and the inner side is provided with a plurality of inner grooves (15) corresponding to the second protrusions (13).

4. The electrochemical in-situ XRD testing device according to claim 3, characterized in that, The upper sidewall of the first mounting cavity (5) is provided with two symmetrical first protrusions (12) along the circumference, and the outer side of the pressure block (7) is provided with two symmetrical second protrusions (13) along the circumference, and the positions of the first protrusions (12) and the second protrusions (13) are perpendicular to each other.

5. The electrochemical in-situ XRD testing device of claim 1, wherein, The outer sides of the pool body (2) and the base (3) are respectively stepped structures. The upper protrusion on the outer side of the pool body (2) is threadedly connected to the upper cover (1), and the lower part of the first mounting cavity (5) is threadedly connected to the upper protrusion on the outer side of the base (3).

6. The electrochemical in-situ XRD testing device according to claim 1 or 5, characterized in that, The metal mechanism includes a metal ring (9) and a metal plate (10) arranged sequentially from top to bottom. The pressure block (7) is connected to the metal ring (9) by a spring. The bottom of the metal plate extends outward and is equipped with a second charging and discharging interface (17).

7. The electrochemical in-situ XRD testing device according to claim 6, wherein, Sealing mechanisms are provided between the top of the pool body (2) and the XRD probe window, between the bottom of the pool body (2) and the base (3), between the pressure block (7) and the insulating sleeve (6), and between the metal ring (9) and the second mounting cavity (8).

8. The electrochemical in-situ XRD testing device according to claim 7, characterized in that, The sealing mechanism includes a sealing groove and a sealing ring. The top and bottom of the pool body (2) and the periphery of the pressure block (7) and the metal ring (9) are respectively provided with sealing grooves, and a sealing ring is provided in the sealing groove.

9. The electrochemical in-situ XRD testing device of claim 6, wherein, The metal plate (10) is racket-shaped, and the base (3) is provided with an embedding groove that communicates with the second mounting cavity (8). The metal plate (10) is engaged with the embedding groove.

10. The electrochemical in-situ XRD testing device of claim 1, wherein, The pressure block (7) has an annular groove (16) on one side corresponding to the spring.

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