In-situ battery sample holder for X-ray diffractometer

Abstract

The utility model discloses an in-situ battery sample rack for an X-ray diffractometer, which relates to the technical field of X-rays and comprises a placing block, a first sealing rubber mat, a second sealing rubber mat, a first sealing film and a second sealing film, the placing block is provided with a placing cavity, a first through hole, a second through hole, a first conductive connecting rod and a second conductive connecting rod; the first sealing film and the second sealing film can be transmitted by X-rays and can prevent external substances from passing through; the first sealing rubber mat, the first sealing film and the second sealing rubber mat which are sequentially arranged are used for sealing an opening in one end of the negative electrode of the battery with the hole; and the second sealing film is used for sealing an opening at one end of the positive electrode of the perforated battery. A good sealing effect is provided for the tested battery with holes, and normal work of the battery with holes is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of X-ray, in particular to an in-situ battery sample holder for an X-ray diffractometer. Background Technique

[0002] The X-ray diffractometer is the most commonly used method for characterizing the crystal structure of materials and has a wide range of applications. The X-ray diffractometer uses the X-ray diffraction method. According to the diffraction principle, it can accurately determine the crystal structure, texture and stress of substances, and can accurately carry out phase analysis, qualitative analysis and quantitative analysis. As the main means for characterizing the crystal structure of materials, it is widely used in scientific research, inspection and testing, and the quality control of products by enterprises.

[0003] The research on the charge and discharge performance of batteries is a long-term process. At present, when the X-ray diffractometer is used for battery performance testing, generally semi-in-situ testing or a special metal in-situ testing kettle is adopted. Semi-in-situ testing is not applicable to the research on the principle of the first charge and other processes of the battery, and the electrochemical process cannot be monitored in real time. However, when using a special metal in-situ testing accessory, although the in-situ testing conditions can be achieved, the cost is high, and there is also a poisonous beryllium window.

[0004] When testing the battery performance, the XRD test is carried out on the button battery with holes in the transmission mode by using a synchrotron radiation device or a laboratory rapid two-dimensional diffractometer; at present, for the sealing measure of the button battery with holes, the commonly used method is to use tape to bond the holes at both poles of the button battery with holes. However, for the test of the laboratory rapid two-dimensional diffractometer that can provide sufficient test time, the sealing effect is poor, and the battery cannot work normally to meet the long-term process test. Content of the Utility Model

[0005] The purpose of the utility model is to provide an in-situ battery sample holder for an X-ray diffractometer, so as to solve the problems existing in the above-mentioned prior art, provide a good sealing effect for the tested button battery with holes, and ensure the normal operation of the button battery with holes.

[0006] To achieve the above purpose, the utility model provides the following scheme:

[0007] The present utility model provides an in-situ battery sample holder for an X-ray diffractometer, which includes a placement block, a first sealing gasket, a second sealing gasket, a first sealing film and a second sealing film; the placement block has a placement cavity, a first through hole, a second through hole, a first conductive connecting rod and a second conductive connecting rod; the placement cavity is used for placing a perforated battery, and the first conductive connecting rod is used to connect with the positive electrode of the perforated battery, and the second conductive connecting rod is used to connect with the negative electrode of the perforated battery; the first through hole and the second through hole are opposite in position, and both the first through hole and the second through hole communicate with the placement cavity; the first through hole is opposite to the opening at one end of the negative electrode of the perforated battery in the placement cavity; the second through hole is opposite to the opening at one end of the positive electrode of the perforated battery in the placement cavity; both the first sealing film and the second sealing film can be penetrated by X-rays and can block the passage of external substances; the first sealing film is located in the placement cavity on the side of the negative electrode of the perforated battery, and the first sealing film can cover and seal the opening at one end of the negative electrode of the perforated battery; the first sealing gasket and the second sealing gasket are respectively located in the placement cavity on both sides of the first sealing film, and the second sealing gasket is located between the first sealing film and the negative electrode of the perforated battery; the second sealing film is located in the placement cavity on the side of the positive electrode of the perforated battery, and the second sealing film covers and seals the opening at one end of the positive electrode of the perforated battery; the first sealing gasket and the second sealing gasket located in the placement cavity are both in a compressed state.

[0008] Preferably, a third sealing gasket is arranged in the placement cavity on the side of the second sealing film away from the perforated battery.

[0009] Preferably, the placement block includes a negative electrode plate, a positive electrode plate and a plurality of connecting pieces; the negative electrode plate is provided with a first groove and a second groove, the first through hole and the second groove are respectively located on both sides of the first groove, and the first through hole communicates with one end of the first groove, and one end of the second groove communicates with the corresponding end of the first groove; the inner diameter of the first through hole is smaller than the inner diameter of the first groove, and the inner diameter of the first groove is smaller than the inner diameter of the second groove; the positive electrode plate is provided with a third groove, the second through hole is located on one side of the third groove and communicates with the third groove, the third groove and the second groove are in corresponding positions and communicate, and the inner diameter of the third groove is the same as the inner diameter of the second groove; the second groove and the third groove are internally used for placing the perforated battery; the first groove houses the first sealing gasket, the first sealing film and the second sealing gasket; the third groove houses the third sealing gasket; each of the connecting pieces is used to fixedly connect the negative electrode plate and the positive electrode plate together; the first groove, the second groove and the third groove jointly form the placement cavity.

[0010] Preferably, the number of the connecting members is 4, and each of the connecting members is located at the four corner positions of the positive electrode plate and the negative electrode plate and is evenly distributed; the connecting member includes a connecting screw rod and a nut, one end of the connecting screw rod is fixedly connected to one side of the positive electrode plate; an installation hole is formed in the negative electrode plate at a position corresponding to the connecting screw rod, and the end of the connecting screw rod away from the positive electrode plate can pass through the corresponding installation hole and be threadedly connected to the nut.

[0011] Preferably, a first threaded hole communicating with the third groove is provided on the positive electrode plate, a first external thread is provided at one end of the first conductive connecting rod, the first external thread is threadedly connected to the first threaded hole, and the end of the first conductive connecting rod having the first external thread can contact the positive electrode of the perforated battery located in the third groove; a second threaded hole communicating with the second groove is provided on the negative electrode plate, a second external thread is provided at one end of the second conductive connecting rod, the second external thread is threadedly connected to the second threaded hole, and the end of the second conductive connecting rod having the second external thread can contact the negative electrode of the perforated battery located in the first groove.

[0012] Preferably, a base is fixedly provided at the bottom of the positive electrode plate, and the base is used for being inserted and fixed on the adapter block of the sample stage of the X-ray diffractometer.

[0013] Preferably, the second through hole is in a horn shape, and the small-mouth end of the second through hole is closer to the second sealing film than the large-mouth end of the second through hole.

[0014] The utility model has achieved the following technical effects compared with the prior art:

[0015] The in-situ battery sample holder for X-ray diffractometer provided by the utility model is connected to the positive electrode of the perforated battery through the first conductive connecting rod and to the negative electrode of the perforated battery through the second conductive connecting rod, so as to realize the energized connection of the perforated battery; the first sealing gasket and the second sealing gasket form a sealing extrusion on both sides of the first sealing film. The first sealing gasket is elastically deformed under extrusion and is closely sealed and attached to the side wall on the corresponding side of the placement cavity and the side wall on the corresponding side of the first sealing film. The second sealing gasket is elastically deformed under extrusion, so as to be closely sealed and attached to the side wall on the corresponding side of the first sealing film and the outer side wall at one end of the negative electrode of the perforated battery. The whole formed by the first sealing gasket, the first sealing film and the second sealing gasket covers and seals the opening at one end of the negative electrode of the perforated battery, so as to realize the sealing of the opening at one end of the negative electrode of the perforated battery; the second sealing film is used to cover and seal the opening at one end of the positive electrode of the perforated battery, so as to realize the sealing of the opening at one end of the positive electrode of the perforated battery; finally, it is realized that the openings at one end of the positive and negative electrodes of the perforated battery block the entry of foreign matters such as water and oxygen in the outside world that affect the battery performance, so as to ensure the normal operation of the perforated battery during long-term testing; the opening at one side of the negative electrode of the perforated battery adopts a three-layer placement form of the first sealing gasket, the first sealing film and the second sealing gasket. Since there is a protrusion on one side of the negative electrode of the perforated battery, the side of the second sealing gasket close to the negative electrode of the perforated battery can be deformed after being extruded, so as to fully fit on one side of the negative electrode of the perforated battery, realize the complete fitting effect on one side of the negative electrode of the perforated battery, ensure its good sealing performance, and ensure the normal operation of the battery; when gas is generated during the charge and discharge process of the perforated battery, since the opening at one end of the positive electrode of the perforated battery is covered by the second sealing film, the gas generated inside it will accumulate on one side of the negative electrode of the perforated battery and fill the closed space jointly formed by the first sealing gasket, the first sealing film, the second sealing gasket and the perforated battery. As the gas is gradually generated, the internal pressure of the closed space gradually increases. Until a certain moment, the internal gas will extrude the first sealing gasket and the second sealing gasket and make them elastically deformed, and then the gas overflows from the crimping edge gap between the second sealing gasket and one end of the negative electrode of the perforated battery. After the gas overflows to a certain extent, the first sealing gasket and the second sealing gasket return to their original shapes, achieving the effect of re-extrusion and sealing, realizing the re-sealing of the opening at one end of the negative electrode of the perforated battery, ensuring the service life of the perforated battery during long-term testing, and enabling it to support the needs of long-term testing; in terms of use, the operation is relatively simple and convenient; compared with using a special metal in-situ test kettle to realize in-situ X-ray testing, the cost is low, it is safe and non-toxic, and the safety risk to the experimenter can be reduced.

[0016] Further, the third sealing gasket arranged on one side of the second sealing film can achieve an extrusion effect on the second sealing film, so as to prevent the second sealing film from detaching from one end of the positive electrode of the perforated battery and ensure a stable and good sealing effect on this side.

[0017] Furthermore, the placement block is composed of two parts, a negative electrode plate and a positive electrode plate, and the two parts are fixedly connected by a plurality of connecting pieces. Its structure is simple and it is convenient to disassemble and assemble. By connecting the negative electrode plate and the positive electrode plate, it is possible to squeeze the first sealing gasket, the second sealing gasket and the third sealing gasket inside, ensuring a good sealing effect.

[0018] Furthermore, the connection between the positive electrode plate and the negative electrode plate is realized by using a connecting screw and a nut. Its structure is simple and convenient, and it is convenient for processing and manufacturing.

[0019] Furthermore, the fixed connection between the first conductive connecting rod and the second conductive connecting rod and the power-on connection with the electrode on the side corresponding to the battery with holes are realized by using the threaded hole and the external thread. The connection structure is simple and convenient.

[0020] Furthermore, the setting of the base facilitates the experiment operator to insert and fix it at the corresponding position of the X-ray diffractometer, improving work efficiency.

[0021] Furthermore, the second through hole is in a horn shape, which can make the X-ray have a larger induction surface at the second through hole after passing through the first through hole, so that the induction element on one side of the second through hole can more stably and effectively sense the X-ray passing through the battery with holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the in-situ battery sample holder for an X-ray diffractometer provided by the present invention;

[0024] Figure 2 It is an exploded view of the structure of the in-situ battery sample holder for an X-ray diffractometer provided by the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the in-situ battery sample holder for an X-ray diffractometer provided by the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the positive electrode plate in the in-situ battery sample holder for an X-ray diffractometer provided by the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the negative electrode plate in the in-situ battery sample holder for an X-ray diffractometer provided by the present invention.

[0028] In the figure:

[0029] 100 - In-situ cell sample holder for X-ray diffractometer;

[0030] 10 - Positive electrode plate; 11 - Second through-hole; 12 - Third groove; 13 - Connector; 131 - Connecting screw; 132 - Nut; 14 - First threaded hole; 15 - Base;

[0031] 20 - Negative electrode plate; 21 - First through-hole; 22 - First groove; 23 - Second groove; 24 - Mounting hole; 25 - Second threaded hole;

[0032] 30 - First sealing gasket;

[0033] 40 - First sealing film;

[0034] 50 - Second sealing gasket;

[0035] 60 - Second sealing film;

[0036] 70 - Third sealing gasket;

[0037] 80 - First conductive connecting rod;

[0038] 90 - Second conductive connecting rod. Detailed implementation mode

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] The purpose of the present invention is to provide an in-situ cell sample holder for an X-ray diffractometer to solve the problems existing in the prior art, provide a good sealing effect for the tested perforated cell, and ensure the normal operation of the perforated cell.

[0041] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation modes.

[0042] Embodiment 1

[0043] This embodiment provides an in-situ cell sample holder 100 for an X-ray diffractometer, as Figures 1 to 5As shown, it includes a placement block, a first sealing gasket 30, a second sealing gasket 50, a first sealing film 40, and a second sealing film 60; the placement block has a placement cavity, a first through hole 21, a second through hole 11, a first conductive connecting rod 80, and a second conductive connecting rod 90; the placement cavity is used to place a perforated battery, and the first conductive connecting rod 80 is used to connect to the positive electrode of the perforated battery, and the second conductive connecting rod 90 is used to connect to the negative electrode of the perforated battery; the first through hole 21 and the second through hole 11 are opposite in position, and both the first through hole 21 and the second through hole 11 communicate with the placement cavity; the first through hole 21 is opposite to the opening at one end of the negative electrode of the perforated battery in the placement cavity; the second through hole 11 is opposite to the opening at one end of the positive electrode of the perforated battery in the placement cavity; both the first sealing film 40 and the second sealing film 60 can be penetrated by X-rays and can block the passage of external substances (the external substances are substances that interfere with the battery performance test, such as external water, oxygen, etc.); the first sealing film 40 is located in the placement cavity on the negative electrode side of the perforated battery, and the first sealing film 40 can cover and seal the opening at one end of the negative electrode of the perforated battery; the first sealing gasket 30 and the second sealing gasket 50 are respectively located in the placement cavity on both sides of the first sealing film 40, and the second sealing gasket 50 is located between the first sealing film 40 and the negative electrode of the perforated battery; the second sealing film 60 is located in the placement cavity on the positive electrode side of the perforated battery, and the second sealing film 60 covers and seals the opening at one end of the positive electrode of the perforated battery; the first sealing gasket 30 and the second sealing gasket 50 located in the placement cavity are both in a compressed state.

[0044] The positive electrode of the perforated battery is connected through the first conductive connecting rod 80, and the negative electrode of the perforated battery is connected through the second conductive connecting rod 90, thereby realizing the power-on connection of the perforated battery; the first sealing gasket 30 and the second sealing gasket 50 form a sealing extrusion on both sides of the first sealing film 40. The first sealing gasket 30 undergoes elastic deformation under extrusion and is tightly sealed and attached to the side wall on the corresponding side of the placing cavity and the side wall on the corresponding side of the first sealing film 40. The second sealing gasket 50 undergoes elastic deformation under extrusion, so as to be tightly sealed and attached to the side wall on the corresponding side of the first sealing film 40 and the outer side wall at one end of the negative electrode of the perforated battery. The overall formed by the first sealing gasket 30, the first sealing film 40 and the second sealing gasket 50 covers and seals the opening at one end of the negative electrode of the perforated battery, thereby realizing the sealing of the opening at one end of the negative electrode of the perforated battery; the second sealing film 60 is used to cover and seal the opening at one end of the positive electrode of the perforated battery, thereby realizing the sealing of the opening at one end of the positive electrode of the perforated battery; finally, it is realized that the openings at one ends of the positive and negative electrodes of the perforated battery block the entry of foreign substances such as water and oxygen in the outside world that affect the battery performance, so as to ensure the normal operation of the perforated battery during the long-term test; the opening at one side of the negative electrode of the perforated battery adopts a three-layer placement form of the first sealing gasket 30, the first sealing film 40 and the second sealing gasket 50. Since there is a protrusion on one side of the negative electrode of the perforated battery, one side of the second sealing gasket 50 close to the negative electrode of the perforated battery can be deformed after being extruded, so as to fully fit on one side of the negative electrode of the perforated battery, realizing the complete fitting effect on one side of the negative electrode of the perforated battery, ensuring its good sealing performance and ensuring the normal operation of the battery; when the perforated battery generates gas during the charge and discharge process, since the opening at one end of the positive electrode of the perforated battery is covered by the second sealing film 60, therefore, the gas generated inside it will accumulate at one side of the negative electrode of the perforated battery and fill the closed space jointly formed by the first sealing gasket 30, the first sealing film 40, the second sealing gasket 50 and the perforated battery. As the gas is gradually generated, the internal pressure of the closed space gradually increases. Until a certain moment, the internal gas will squeeze the first sealing gasket 30 and the second sealing gasket 50 and cause them to undergo elastic deformation, and then the gas overflows from the crimping edge gap between the second sealing gasket 50 and one end of the negative electrode of the perforated battery. After the gas overflows to a certain extent, the first sealing gasket 30 and the second sealing gasket 50 return to their deformed states, achieving the re-sealing effect of squeezing again, realizing the re-sealing of the opening at one end of the negative electrode of the perforated battery, ensuring the service life of the perforated battery during the long-term test and enabling it to support the requirements of the long-term test; in terms of use, the operation is relatively simple and convenient; compared with using a special metal in-situ test kettle to realize in-situ X-ray testing, the cost is low, it is safe and non-toxic, and can reduce the safety risk to the experimenter.

[0045] Specifically, the placing block is made of a non-conductive material.

[0046] Among them, regarding the structural composition of the placing block:

[0047] In an alternative embodiment of the present invention, preferably, as Figures 1 to 3 shown, the placement block includes a negative electrode plate 20, a positive electrode plate 10, and a plurality of connecting members 13; a first groove 22 and a second groove 23 are provided on the negative electrode plate 20, a first through hole 21 and the second groove 23 are respectively located on both sides of the first groove 22, and the first through hole 21 communicates with one end of the first groove 22, and one end of the second groove 23 communicates with the corresponding end of the first groove 22; the inner diameter of the first through hole 21 is smaller than the inner diameter of the first groove 22, and the inner diameter of the first groove 22 is smaller than the inner diameter of the second groove 23; a third groove 12 is provided on the positive electrode plate 10, a second through hole 11 is located on one side of the third groove 12 and communicates with the third groove 12, the third groove 12 and the second groove 23 are in corresponding positions and communicate with each other, and the inner diameter of the third groove 12 is the same as the inner diameter of the second groove 23; the inside of the second groove 23 and the third groove 12 is used to place the battery with holes; a first sealing gasket 30, a first sealing film 40, and a second sealing gasket 50 are placed in the first groove 22; a third sealing gasket 70 is placed in the third groove 12; each connecting member 13 is used to fixedly connect the negative electrode plate 20 and the positive electrode plate 10 together; the first groove 22, the second groove 23, and the third groove 12 together form a placement cavity. The placement block is composed of two parts, namely the negative electrode plate 20 and the positive electrode plate 10, and the two parts are fixedly connected by a plurality of connecting members 13, and its structure is simple and convenient for disassembly and assembly; through the connection of the negative electrode plate 20 and the positive electrode plate 10, the first sealing gasket 30, the second sealing gasket 50, and the third sealing gasket 70 inside can be squeezed, ensuring a good sealing effect.

[0048] Specifically, the sum of the thicknesses of the first groove 22, the second groove 23, and the third groove 12 is smaller than the thicknesses of the first sealing gasket 30, the first sealing film 40, the second sealing gasket 50, the battery with holes, the second sealing film 60, and the third sealing gasket 70 in the same direction, so as to realize that after the positive electrode plate 10 and the negative electrode plate 20 are spliced, the corresponding first sealing gasket 30, the second sealing gasket 50, and the third sealing gasket 70 can be squeezed, achieving a good sealing effect.

[0049] Specifically, both the positive electrode plate 10 and the negative electrode plate 20 are formed by 3D printing.

[0050] In an alternative embodiment of the present invention, preferably, as Figures 1 to 3As shown, the number of connecting members 13 is four, and each connecting member 13 is located at the four corner positions of the positive electrode plate 10 and the negative electrode plate 20 and is evenly distributed; the connecting member 13 includes a connecting screw 131 and a nut 132. One end of the connecting screw 131 is fixedly connected to one side of the positive electrode plate 10; an installation hole 24 is provided at a position on the negative electrode plate 20 corresponding to the connecting screw 131. One end of the connecting screw 131 away from the positive electrode plate 10 can pass through the corresponding installation hole 24 and be threadedly connected to the nut 132. The connection between the positive electrode plate 10 and the negative electrode plate 20 is achieved by using the connecting screw 131 and the nut 132, and its structure is simple and convenient, facilitating processing and production.

[0051] Specifically, the fixed connection method between the connecting screw 131 and the positive electrode plate 10 can be that an internal thread connection hole is provided at the corresponding position of the positive electrode plate 10, and an external connection thread is provided at the corresponding end of the connecting screw 131, and the external connection thread is threadedly connected into the internal thread connection hole; or the connecting screw 131 can be directly fixedly connected to the corresponding position of the positive electrode plate 10.

[0052] In an alternative solution of this embodiment, preferably, as Figure 2 , Figure 3 and Figure 4 shown, a first threaded hole 14 communicating with the third groove 12 is provided on the positive electrode plate 10. One end of the first conductive connecting rod 80 is provided with a first external thread, and the first external thread is threadedly connected to the first threaded hole 14, and one end of the first conductive connecting rod 80 having the first external thread can contact the positive electrode of the battery with holes located in the third groove 12; a second threaded hole 25 communicating with the second groove 23 is provided on the negative electrode plate 20. One end of the second conductive connecting rod 90 is provided with a second external thread, and the second external thread is threadedly connected to the second threaded hole 25, and one end of the second conductive connecting rod 90 having the second external thread can contact the negative electrode of the battery with holes located in the first groove 22. By using the threaded hole and the external thread to achieve the fixed connection of the first conductive connecting rod 80 and the second conductive connecting rod 90 and the energized connection with the electrodes on the corresponding side of the battery with holes, the connection structure is simple and convenient.

[0053] In an alternative solution of this embodiment, preferably, as Figures 1 to 4 shown, a base 15 is fixedly provided at the bottom of the positive electrode plate 10, and the base 15 is used for plugging and fixing on the adapter block of the sample stage of the X-ray diffractometer. The provision of the base 15 facilitates the experimental operator to plug and fix it at the corresponding position of the X-ray diffractometer, improving work efficiency.

[0054] In an alternative solution of this embodiment, preferably, as Figure 2As shown, the second through-hole 11 is trumpet-shaped, and the small-mouth end of the second through-hole 11 is closer to the second sealing film 60 than the large-mouth end of the second through-hole 11. The second through-hole 11 is trumpet-shaped, which can make the induction surface of the X-ray larger at the second through-hole 11 after passing through the first through-hole 21, so that the induction element located on one side of the second through-hole 11 can more stably and effectively sense the X-ray passing through the battery with holes.

[0055] Among them, regarding the sealing structure on the negative electrode and positive electrode sides of the battery with holes:

[0056] In an alternative embodiment of the present invention, preferably, as Figure 1 and Figure 2 shown, a third sealing gasket 70 is provided in the placing cavity on the side of the second sealing film 60 away from the battery with holes. The third sealing gasket 70 provided on one side of the second sealing film 60 can exert a squeezing effect on the second sealing film 60, thereby reducing the detachment of the second sealing film 60 from the positive electrode end of the battery with holes and ensuring a stable and good sealing effect on this side.

[0057] Specifically, the second sealing film 60 is fixedly sealed and adhered to the opening at the positive electrode end of the battery with holes by an adhesive method.

[0058] Specifically, the first sealing gasket 30, the second sealing gasket 50, and the third sealing gasket 70 can be made of rubber or silica gel.

[0059] Specifically, the first sealing gasket 30, the second sealing gasket 50, and the third sealing gasket 70 can be an annular structure with a certain thickness, or a sealing rubber ring with a circular cross-section.

[0060] Specifically, the first sealing film 40 and the second sealing film 60 can be a polyimide film with an aluminum coating on the outer layer or other X-ray transmissive films.

[0061] Among them, regarding other relevant descriptions:

[0062] Description of the usage method:

[0063] Use tools to remove the nuts 132 at the four corners from the corresponding connecting screws 131; then loosen the first conductive connecting rod 80 and the second conductive connecting rod 90 on both sides, insert the perforated battery, and ensure that the perforated button battery presses the second sealing gasket 50 and the third sealing gasket 70 built in the corresponding positions front and back; then tighten the nuts 132 at the four corners on the corresponding connecting screws 131; adjust the first conductive connecting rod 80 and the second conductive connecting rod 90 so that they each contact the housing of the positive and negative electrodes of the internal perforated battery, and use a multimeter to test the voltage to ensure that the circuit is conductive; then insert the whole into the sample stage of the X-ray diffractometer and fix it, adjust the position so that the X-ray can pass through the first through hole 21 and the second through hole 11, and then connect the wiring of the battery tester to the corresponding first conductive connecting rod 80 and the second conductive connecting rod 90, start the battery tester to perform charge and discharge tests, and at the same time start the X-ray diffractometer to start XRD tests.

[0064] In the present utility model, specific examples are used to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An in-situ battery sample holder for an X-ray diffractometer, characterized in that: It includes a placement block, a first sealing gasket, a second sealing gasket, a first sealing film and a second sealing film; The placement block has a placement cavity, a first through hole, a second through hole, a first conductive connecting rod and a second conductive connecting rod; the placement cavity is used for placing a perforated battery, and the first conductive connecting rod is used to connect with the positive electrode of the perforated battery, and the second conductive connecting rod is used to connect with the negative electrode of the perforated battery; the first through hole and the second through hole are opposite in position, and both the first through hole and the second through hole communicate with the placement cavity; the first through hole is opposite to the opening at the negative electrode end of the perforated battery in the placement cavity; the second through hole is opposite to the opening at the positive electrode end of the perforated battery in the placement cavity; Both the first sealing film and the second sealing film can be penetrated by X-rays and can block the passage of external substances; The first sealing film is located in the placement cavity on the negative electrode side of the perforated battery, and the first sealing film can cover and seal the opening at the negative electrode end of the perforated battery; the first sealing gasket and the second sealing gasket are respectively located in the placement cavity on both sides of the first sealing film, and the second sealing gasket is located between the first sealing film and the negative electrode of the perforated battery; The second sealing film is located in the placement cavity on the positive electrode side of the perforated battery, and the second sealing film covers and seals the opening at the positive electrode end of the perforated battery; The first sealing gasket and the second sealing gasket located in the placement cavity are both in a compressed state.

2. The in-situ cell sample holder for X-ray diffractometer according to claim 1, wherein: A third sealing gasket is arranged in the placement cavity on the side of the second sealing film away from the perforated battery.

3. The in-situ battery sample holder for an X-ray diffractometer according to claim 2, characterized in that: The placement block includes a negative electrode plate, a positive electrode plate and a plurality of connecting pieces; The negative electrode plate is provided with a first groove and a second groove. The first through hole and the second groove are respectively located on both sides of the first groove, and the first through hole communicates with one end of the first groove. One end of the second groove communicates with the corresponding end of the first groove; the inner diameter of the first through hole is smaller than the inner diameter of the first groove, and the inner diameter of the first groove is smaller than the inner diameter of the second groove; the positive electrode plate is provided with a third groove. The second through hole is located on one side of the third groove and communicates with the third groove. The third groove and the second groove are in corresponding positions and communicate with each other. The inner diameter of the third groove is the same as the inner diameter of the second groove; The second groove and the third groove are internally used for placing the perforated battery; the first groove contains the first sealing gasket, the first sealing film and the second sealing gasket; the third groove contains the third sealing gasket; Each of the connecting pieces is used to fixedly connect the negative electrode plate and the positive electrode plate together; The first groove, the second groove and the third groove together form the placement cavity.

4. The in-situ cell sample holder for an X-ray diffractometer according to claim 3, characterized in that: The number of the connecting pieces is 4, and each of the connecting pieces is evenly distributed at the four corner positions of the positive electrode plate and the negative electrode plate; The connecting member includes a connecting screw and a nut. One end of the connecting screw is fixedly connected to one side of the positive plate. A mounting hole is provided in the negative plate corresponding to the position of the connecting screw. The end of the connecting screw away from the positive plate can pass through the corresponding mounting hole and be threadedly connected to the nut.

5. The in-situ cell sample holder for X-ray diffractometer according to claim 3, characterized in that: A first threaded hole communicating with the third groove is provided on the positive plate. One end of the first conductive connecting rod is provided with a first external thread, and the first external thread is threadedly connected to the first threaded hole. Moreover, the end of the first conductive connecting rod having the first external thread can contact the positive electrode of the perforated battery located in the third groove. A second threaded hole communicating with the second groove is provided on the negative plate. One end of the second conductive connecting rod is provided with a second external thread, and the second external thread is threadedly connected to the second threaded hole. Moreover, the end of the second conductive connecting rod having the second external thread can contact the negative electrode of the perforated battery located in the first groove.

6. The in-situ battery sample holder for X-ray diffractometer according to claim 3, characterized in that: A base is fixedly provided at the bottom of the positive plate, and the base is used for being inserted and fixed on the adapter block of the sample stage of the X-ray diffractometer.

7. The in-situ battery sample holder for X-ray diffractometer according to claim 1, characterized in that: The second through hole is trumpet-shaped, and the small-mouth end of the second through hole is closer to the second sealing film than the large-mouth end of the second through hole.

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