CN212111479U - Temperature-variable solid-state battery testing device for atomic force microscope - Google Patents
Temperature-variable solid-state battery testing device for atomic force microscope Download PDFInfo
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- CN212111479U CN212111479U CN202020630570.XU CN202020630570U CN212111479U CN 212111479 U CN212111479 U CN 212111479U CN 202020630570 U CN202020630570 U CN 202020630570U CN 212111479 U CN212111479 U CN 212111479U
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Abstract
The utility model provides a solid-state battery testing arrangement of variable temperature for atomic force microscope, including battery anchor clamps, positioner and temperature regulating device, battery anchor clamps include current conducting plate and insulation board, temperature regulating device establishes the below at battery anchor clamps, positioner includes two cylindrical distance tables and a horizontally fillet rectangle distance table, be equipped with convex locating pin in the distance table, positioner establishes on the medial surface of current conducting plate, and the medial surface of insulation board is equipped with the correspondence the locating hole of locating pin. After the positioning device is aligned and occluded with the positioning hole, the distance between the conductive plate and the insulating plate is equal to the thickness of the solid-state battery, the solid-state battery is prevented from being excessively extruded or stressed unevenly, and the testing accuracy is improved.
Description
Technical Field
The utility model belongs to the technical field of the electrochemistry test, concretely relates to solid-state battery testing arrangement of variable temperature for atomic force microscope.
Background
With the development of energy storage devices such as electric vehicles and portable electronics, solid-state lithium ion batteries become the first choice technology of the next generation of energy storage devices due to their high energy density and power density, high safety and high electrochemical stability. At present, no clear understanding exists in the field about the interfacial reaction mechanism of an electrode and an electrolyte in a solid-state battery and the failure mechanism of the battery, and the solid-state battery has the problems of large interfacial resistance, interfacial side reaction and the like. An electrochemical atomic Force Microscope (EC-AFM) is a novel characterization technology combining electrochemical analysis and atomic Force microscopy, can detect physical characteristics such as morphology, modulus, surface potential and the like of battery interface reaction on a nanoscale, has the characteristics of high resolution, high reducibility and the like, and is a characterization means very suitable for the research of a battery failure mechanism. The electrochemical atomic force microscope technology is applied to devices and technical researches for characterization of solid-state battery interfaces, and is not mature.
Patent CN201920028165.8 provides an in-situ characterization device for atomic force microscope and electrochemical workstation, the device includes an insulating base and a first fixed portion, a second fixed portion and a movable portion on the upper surface of the insulating base, the first fixed portion and the second fixed portion are disposed on two sides of the insulating base, the movable portion is disposed between the two fixed portions, a first magnetic screw is connected to and adjusts the distance between the movable portion and the first fixed portion, a second magnetic screw is disposed on the second fixed portion and connected to the electrochemical workstation, and a solid-state battery is disposed between the second fixed portion and the movable portion.
Patent CN201621363622.1 discloses a pressurized button cell test fixture, which is composed of a fixture main body, a positive electrode plate, a negative electrode plate, a spring and a pressurized screw, wherein both sides of the main body are provided with polar plate drainage strip slots; the positive electrode plate is arranged at the bottom of the main body, and the drainage strip of the positive electrode plate is clamped in the plate drainage strip clamping groove on one side of the main body; the positive electrode of the button cell faces downwards and is placed on the positive electrode plate; the negative electrode plate is placed on the button cell, and the drainage strip is clamped in the electrode plate drainage strip clamping groove on the other side of the main body; the spring is placed on the negative pole plate and is pressed and fixed by a pressurizing screw rod on the upper part of the main body.
At present, a solid-state battery testing device for an atomic force microscope is simple in structure and single in function, only provides a holding function, and a solid-state battery testing device for other fields cannot be matched with a detection probe of the atomic force microscope to test an interface of a solid-state battery basically. In addition, with the progress of research, it is necessary to develop a device suitable for the interface characterization of the solid-state battery in the actual operating environment, especially at high temperature.
SUMMERY OF THE UTILITY MODEL
The utility model provides a solid-state battery testing arrangement of variable temperature for atomic force microscope, including battery anchor clamps, positioner and temperature regulating device, battery anchor clamps include current conducting plate and insulation board, temperature regulating device establishes the below at battery anchor clamps, positioner includes two cylindrical distance tables and a horizontally fillet rectangle distance table, be equipped with convex locating pin in the distance table, positioner establishes on the medial surface of current conducting plate, and the medial surface of insulation board is equipped with the correspondence the locating hole of locating pin. After the positioning device is aligned and occluded with the positioning hole, the distance between the conductive plate and the insulating plate is equal to the thickness of the solid-state battery, and the solid-state battery is prevented from being excessively extruded or stressed unevenly.
The positive pole of the solid-state battery is in contact with the conductive plate, the negative pole is in contact with the insulating plate, and the current collectors of the positive pole and the negative pole are respectively connected to the electrochemical workstation through conductive copper adhesive or other conductive media.
Preferably, the conducting plate comprises a first horizontal plate and a first vertical block vertically and fixedly connected with the first horizontal plate, and the first horizontal plate and the first vertical block form a T-shaped conducting plate; the insulating plate comprises a second horizontal plate and a second vertical block vertically and fixedly connected with the second horizontal plate, and the second horizontal plate and the second vertical block form a T-shaped insulating plate.
More preferably, the upper and lower surfaces of the first vertical block are flush with the upper and lower surfaces of the conductive plate, respectively, and the upper and lower surfaces of the second vertical block are flush with the upper and lower surfaces of the insulating plate, respectively.
The inner side surface of the conductive plate surface, namely one side of the conductive plate facing the insulating plate, is provided with a convex positioning device, and the inner side surface of the insulating plate, namely one side of the insulating plate facing the conductive plate, is provided with a concave positioning hole. The positioning device comprises two cylindrical distance tables and a round-angle rectangular distance table, wherein a convex positioning pin is arranged in the distance table, and the positioning pin and the distance table are integrally formed.
The sizes of the distance table and the positioning pin are determined according to the thickness of the solid-state battery to be measured actually, and the thickness of the solid-state battery is equal to the sum of the distance between the inner side face of the current-conducting plate protruding from the distance table and the distance between the part, exposed out of the distance table and the positioning hole, of the positioning pin.
Preferably, the lateral surface of insulation board is equipped with second positioner, the locating hole is the through-hole that runs through the medial surface and the lateral surface of insulation board, the one end of locating pin inserts in the locating hole that corresponds to wear out the back from the lateral surface of insulation board, connect second positioner, second positioner can drive the insulation board and be close to or keep away from the current conducting plate, and second positioner can be according to the different thickness of solid-state battery promptly, the distance between current conducting plate and the insulation board is adjusted to the ration.
The second positioning device comprises a micrometer screw and a connecting plate, the micrometer screw is arranged on the connecting plate, a screw rod of the micrometer screw penetrates through the connecting plate and is connected with the insulating plate, the positioning pin penetrates through the positioning hole and is connected with the connecting plate, when the micrometer screw is rotated, the connecting plate and the positioning pin are fixed, the screw rod drives the insulating plate to move close to or away from the conducting plate along the positioning pin, the distance between the conducting plate and the insulating plate is accurately and quantitatively changed, and the test experiment of the solid-state batteries with different thicknesses is adapted.
More preferably, the second positioning device is detachably connected to the insulating plate, the connecting plate is made of stainless steel, when the distance between the conductive plate and the insulating plate is fixed, the micrometer caliper can be detached from the connecting plate, and the connecting plate can move towards the insulating plate along the positioning pin and is finally attached to the outer side face of the insulating plate.
The micrometer caliper is provided with a locking device, and after the position of the insulating plate is adjusted, the locking device is fixed, so that the screw rod and the insulating plate cannot move.
The temperature control device is arranged below the battery clamp, heats and maintains the battery clamp and the solid-state battery at a certain temperature, preferably, the temperature control range of the temperature control device is 20-60 ℃, and the temperature control device is convenient for an atomic force microscope to observe physical property changes such as appearance, modulus, surface potential and the like of the battery section at different temperatures. Preferably, the bottom of the temperature control device is provided with a magnet, and the battery clamp is adsorbed on the temperature control device through magnetic force.
The material of current conducting plate is the martensite stainless steel, has magnetism, and adsorbable on temperature regulating device need not to establish magnet in addition on battery anchor clamps, the material of insulation board is polytetrafluoroethylene, because temperature regulating device is open heating device, in order to guarantee the temperature of solid-state battery, current conducting plate and second positioner's connecting plate centre gripping respectively provides good heat conduction environment in the positive negative pole both sides of battery.
Preferably, the testing device further comprises a solid-state battery preparation device, the solid-state battery preparation device is detachably arranged on a cubic groove body of the inner side surface of the conductive plate, the cubic groove body is provided with a bottom surface and three side surfaces, the bottom surface is attached to the inner side surface of the conductive plate, the first side surface is flush with the upper surface of the conductive plate, the second side surface and the third side surface are respectively arranged on two sides of the first side surface and are perpendicular to the inner side surfaces of the first side surface and the conductive plate, and the cubic groove body is used as a fourth side surface for the upper surface of the round-angle rectangular distance table.
A solid-state battery testing arrangement of variable temperature for atomic force microscope have following beneficial effect:
1. the distance table and the positioning pin of the positioning device can position the position of the solid-state battery, so that the assembly of the solid-state battery is facilitated, the pressure borne by the solid-state battery in the same group of comparison experiments can be ensured to be the same, the internal stress of the solid-state battery is uniform, and the local extrusion caused when the conductive plate is connected with the insulating plate is prevented;
2. the second positioning device not only can accurately adjust the distance between the conductive plate and the insulating plate to adapt to the solid-state batteries with different thicknesses, but also the connecting plate made of stainless steel is attached to the outer side surface of the insulating plate, so that the heat transfer condition of the negative electrode side of the solid-state battery is favorably improved, the overall temperature distribution of the solid-state battery is balanced, and the detection accuracy is improved;
3. the battery clamp can be used for a heating system, can research the characteristics of battery interface morphology, modulus, surface potential and the like at high temperature, and is very suitable for the analysis of a battery failure mechanism;
4. the device has the advantages of simple overall structure, convenience in installation, safety and reliability, and can be widely applied to in-situ electrochemical atomic force microscope tests of solid-state batteries.
Drawings
Fig. 1 is a structural diagram of the variable temperature solid-state battery testing apparatus for an atomic force microscope.
Fig. 2 is a schematic diagram of a conductive plate structure.
Fig. 3 is a schematic view of the structure of the insulating plate.
Fig. 4 is a schematic diagram of the second positioning device adjusting the position of the insulation board.
Fig. 5 is a schematic diagram of the second positioning device adjusting the position of the connection plate.
In the figure, 1-battery clamp, 2-conductive plate, 201-first horizontal plate, 202-first vertical block, 3-insulating plate, 301-second horizontal plate, 302-second vertical block, 4-positioning device, 401-distance table, 402-positioning pin, 5-solid battery, 6-positioning hole, 7-screw hole, 8-second positioning device, 801-spiral micrometer, 802-connecting plate, 803-screw, 9-temperature control device and 10-probe.
Detailed Description
The utility model provides a but be used for atomic force microscope's solid-state battery testing arrangement of variable temperature, simple to operate, can implement the nature height, can be under different temperatures, carry out on-line measuring through physical properties such as electrochemistry atomic force microscope to solid-state lithium ion battery's table interface appearance, modulus, surface potential at battery charge-discharge in-process for analysis solid-state battery failure mechanism.
The temperature-variable solid-state battery testing device for the atomic force microscope is shown in figures 1-3 and comprises a battery clamp 1, a positioning device 4 and a temperature control device, wherein the battery clamp 1 comprises a conductive plate 2 and an insulating plate 3, the positive electrode of a solid-state battery 5 is in contact with the conductive plate 2, and the negative electrode of the solid-state battery is in contact with the insulating plate 3; temperature regulating device 9 establishes in the below of battery anchor clamps 1, positioner 4 includes two cylindrical distance tables and a horizontally fillet rectangle distance table, be equipped with convex locating pin 402 in the distance table 401, positioner 4 establishes on the medial surface of current-conducting plate 2, and the medial surface of insulation board 3 is equipped with the correspondence locating hole 6 of locating pin 402. After the positioning device 4 is aligned and meshed with the positioning hole 6, the distance between the conductive plate 2 and the insulating plate 3 is equal to the thickness of the solid-state battery, and the solid-state battery is prevented from being excessively extruded or unevenly stressed.
A solid-state battery testing arrangement that is used for atomic force microscope's variable temperature on the basis of traditional solid-state battery anchor clamps, to the characteristics at atomic force microscope test solid-state battery table interface, open battery anchor clamps 1 has been designed, 5 centre gripping of solid-state battery between current conducting plate 2 and insulation board 3, anodal and current conducting plate 2 contact, negative pole and 3 contacts of insulation board, the interface that awaits measuring of solid-state battery 5 flushes with the upper surface of current conducting plate 2 and insulation board 3 to expose, the atomic force microscope's of being convenient for probe 10 contacts the interface that awaits measuring carries out physical properties such as appearance, modulus, surface potential at the table interface of battery and carries out on-line measuring. And simultaneously, the utility model discloses the people creatively proposes to carry out on-line measuring lithium ion solid-state battery at the surface interface nature under the different temperatures, further explores the failure mechanism of analysis solid-state battery, and this research to lithium ion solid-state battery has great significance, consequently the device of observation alternating temperature solid-state battery surface design temperature regulating device 9 to integrate with normal position electrochemistry atomic force microscope's testing arrangement for atomic force microscope detects normally.
The positive pole of the solid-state battery 5 is in contact with the conductive plate, the negative pole is in contact with the insulating plate, and the current collectors of the positive pole and the negative pole are respectively connected to the electrochemical workstation through conductive copper adhesive or other conductive media.
Preferably, the conductive plate 2 comprises a first horizontal plate 201 and a first vertical block 202 vertically and fixedly connected with the first horizontal plate, and the first horizontal plate 201 and the first vertical block 202 form a T-shaped conductive plate; the insulating plate 3 comprises a second horizontal plate 301 and a second vertical block 302 vertically and fixedly connected with the second horizontal plate, and the second horizontal plate 301 and the second vertical block 302 form a T-shaped insulating plate.
Preferably, the upper and lower surfaces of the first vertical block 202 are flush with the upper and lower surfaces of the conductive plate 2, respectively, and the upper and lower surfaces of the second vertical block 302 are flush with the upper and lower surfaces of the insulating plate 3, respectively.
The design of the first vertical block 202 and the second vertical block 302 not only facilitates the operation of holding the conductive plate 2 and the insulating plate 3 by an operator for various solid-state batteries, but also facilitates the self balance when the battery clamp 1 is vertically placed, so that the battery clamp is stably placed on the temperature control device 9.
The inner side surface of the conductive plate surface 2, namely one side of the conductive plate 2 facing the insulating plate 3, is provided with a convex positioning device 4, the positioning device 4 comprises two cylindrical distance tables and a round-angle rectangular distance table, a convex positioning pin 402 is arranged in the distance table 401, and the positioning pin 402 and the distance table 401 are integrally formed.
When in use, the bottom and/or two sides of the solid-state battery 9 depend on the distance table 401, and the surface of the positioning device 4 is subjected to insulation treatment, such as spraying insulating paint, so as to prevent the solid-state battery from short circuit; one end of the positioning pin 402 is inserted into the corresponding positioning hole 6, and the two cylindrical distance holders and the rounded rectangular distance holder are correspondingly matched with each other, so that any position between the conductive plate 2 and the insulating plate 3 always keeps the same distance, wherein the distance is equal to the thickness of the solid-state battery 5 to be measured. When the current-conducting plate 2 and the insulating plate 3 are used for clamping the solid-state battery and are assembled, the positioning device 4 enables the minimum distance between the current-conducting plate and the insulating plate to be the thickness of the solid-state battery, so that when the solid-state battery is clamped in the battery clamp 1, the stress is uniform, the stress is kept consistent in the same group of comparison experiments, and the solid-state battery is not excessively extruded by the current-conducting plate and the insulating plate.
The dimensions of the distance holder 401 and the positioning pin 402 are determined according to the thickness of the solid-state battery to be measured, which is equal to the sum of the distance holder 401 from the inner side surface of the conductive plate 2 and the distance of the portion of the positioning pin 402 exposed from the distance holder 401 and the positioning hole 6.
The utility model discloses an in the embodiment, fillet rectangle distance table is established in the lower part of current conducting plate 2, and two cylinder distance tables are established on the both sides on current conducting plate 2 upper portion, and solid-state battery 5's bottom is put on fillet rectangle distance table to keep the level, two distance tables on both sides play the effect of assistance-localization real-time.
Preferably, the connection and fixation of the conductive plate 2 and the insulating plate 3 are selected from various methods such as mechanical fixation and magnetic attraction fixation, for example, screw holes 7 are provided at the corresponding positions of the four corners of the conductive plate 2 and the insulating plate 3, and the conductive plate and the insulating plate may be connected by screws and nuts, or a magnetic attraction device may be installed to attract the conductive plate and the insulating plate together.
Preferably, as shown in fig. 4, the outer side surface of the insulating plate 3 is provided with a second positioning device 8, the positioning hole 6 is a through hole penetrating through the inner side surface and the outer side surface of the insulating plate 3, one end of the positioning pin 402 is inserted into the corresponding positioning hole 6 and penetrates out of the outer side surface of the insulating plate 3 to be connected with the second positioning device 8, the second positioning device 8 can drive the insulating plate 3 to be close to or far away from the conductive plate 2, that is, the second positioning device can quantitatively adjust the distance between the conductive plate and the insulating plate according to different thicknesses of the solid-state battery.
The second positioning device 8 comprises a micrometer screw 801 and a connecting plate 802, the micrometer screw 801 is detachably arranged on the connecting plate 802, a screw 803 of the micrometer screw 801 penetrates through the connecting plate 802 and is connected with the insulating plate 3, the positioning pin 402 penetrates through the positioning hole 6 and is connected with the connecting plate 802, when the micrometer screw 801 is rotated, the connecting plate 802 and the positioning pin 402 are fixed, the screw 803 drives the insulating plate 3 to move close to or away from the conductive plate 2 along the positioning pin 402, the distance between the conductive plate 2 and the insulating plate 3 is accurately and quantitatively changed, and the test experiment of solid-state batteries with different thicknesses is adapted.
More preferably, as shown in fig. 5, the second positioning device 8 is detachably connected to the insulating plate 3, the connecting plate 802 is made of stainless steel, after the distance between the conducting plate 2 and the insulating plate 3 is fixed, the locking device of the micrometer screw 801 is fixed, so that the screw 803 and the insulating plate 3 cannot move, and the conducting plate 2 and the insulating plate 3 are connected and fixed by screws, preferably, when the thickness of the solid-state battery 5 is large and the part of the positioning pin 402 exposed out of the distance table 401 is large, a rubber gasket is arranged at the part of the positioning pin 402 exposed out of the distance table 401, so that the positioning device contacted with the bottom of the solid-state battery is flat. The locking device of the micrometer screw 801 is a common locking device on the market which can be used for micrometer screws.
The micrometer screws 801 can then be removed from the connection plates 802, and the connection plates 802 can be moved along the positioning pins towards the insulating plate 3 and finally attached to the outer side of the insulating plate 3. Second positioner 8 not only can be through the physical motion of insulation board 3, the distance between current conducting plate 2 and the insulation board 3 is adjusted to the accuracy to adapt to the test experiment of the solid-state battery of different thickness, according to temperature regulating device 9's heating requirement, in the testing process, make stainless steel's connecting plate 802 attached at insulation board 3's lateral surface, be favorable to improving the heat transfer condition on the solid-state battery negative pole side, make the whole temperature distribution of solid-state battery balanced, improve the accuracy that detects.
The temperature control device 9 is arranged below the battery clamp 1, heats and maintains the battery clamp 1 and the solid-state battery 5 at a certain temperature, preferably, the temperature control range of the temperature control device 9 is 20-60 ℃, and the temperature control device is convenient for an atomic force microscope to observe physical property changes such as appearance, modulus, surface potential and the like of the battery section at different temperatures. Preferably, the bottom of the temperature control device 9 is provided with a magnet, and the battery clamp 1 is adsorbed on the temperature control device through magnetic force.
The material of current conducting plate 2 is the martensite stainless steel, has magnetism, and adsorbable need not to establish magnet on battery anchor clamps in addition on temperature regulating device 9, the material of insulation board 3 is polytetrafluoroethylene, because temperature regulating device 9 is open heating device, in order to guarantee the temperature of solid-state battery, current conducting plate 2 and second positioner's connecting plate 802 centre gripping respectively provides good heat conduction environment in the positive negative pole both sides of battery.
Preferably, the device for observing the surface interface of the temperature-variable solid-state battery by using the in-situ electrochemical atomic force microscope further comprises a solid-state battery preparation device. The utility model discloses the people discovers in the practice, and when normal position electrochemistry atomic force microscope surveyed solid-state battery surface interface, the interface department of probe direct contact battery upper surface, the roughness direct influence observation result at interface, even because the unevenness of interface department leads to the unable effective contact of probe, causes and observes middle section or failure. The solution of this problem except relying on perfect solid-state battery preparation technique, the utility model provides a solid-state battery preparation facilities be used for specially directly preparing solid-state battery on the battery anchor clamps for the upper surface interface of solid-state battery flushes with the upper surface of current conducting plate 2 and insulation board 3, improves the roughness at battery interface simultaneously.
The solid-state battery preparation device is a cubic groove body detachably arranged on the inner side surface of the conductive plate 2, the cubic groove body is provided with a bottom surface and three side surfaces, the bottom surface is attached to the inner side surface of the conductive plate 2, the first side surface is flush with the upper surface of the conductive plate, the second side surface and the third side surface are respectively arranged on two sides of the first side surface and are perpendicular to the first side surface and the inner side surface of the conductive plate, and the cubic groove body is used as a fourth side surface by the upper surface of the rounded rectangular distance table
When preparing solid-state battery 5, place current conducting plate 2 level, its medial surface is upwards, and solid-state battery preparation facilities places on current conducting plate 2 medial surface, and solid-state battery preparation facilities also is the level and places this moment, and solid-state battery preparation facilities's first side flushes with current conducting plate 2 upper surface, and the edge of bottom surface supports the fillet rectangle distance table of current conducting plate lower part, and operating personnel can make solid-state battery in solid-state battery preparation facilities's cubic cell body. After the manufacturing is completed, the solid-state battery preparation device is removed, and the solid-state battery can be fixed in the battery clamp 1 according to the above mode for observation and test.
The device work flow of the temperature-changing solid-state battery surface interface observed by the in-situ electrochemical atomic force microscope is as follows: in a glove box with water oxygen value less than 0.1ppm and argon atmosphere, a solid-state battery preparation device is arranged on a conductive plate 2, a solid-state battery 5 is assembled in a cubic groove body of the solid-state battery preparation device, the solid-state battery preparation device is disassembled after the solid-state battery preparation device is manufactured, and the solid-state battery 5 is placed in a battery clamp 1, so that a flat detected interface is obtained and used for detecting an atomic force microscope probe 10. Placing the solid-state battery 5 to be tested on the round-corner rectangular distance table 401, and preventing the solid-state battery from being short-circuited by insulating paint; the positive pole part of the solid-state battery is contacted with the conductive plate 2, the negative pole part is contacted with the insulating plate 3, the current collector of the positive pole part is connected out by a conductive copper adhesive, the current collector of the negative pole part is connected out by a conductive copper adhesive, and the two conductive copper adhesives are connected to an electrochemical workstation for electrochemical test. The conductive plate 1 and the insulating plate 3 are then fixedly connected by screws so that the section of the solid-state battery viewed is aligned with the upper surface edges of the conductive plate 1 and the insulating plate 3.
The assembled solid-state battery 5 and battery holder 1 are fixed to a temperature control device 9 by magnetic force. The topography, modulus, surface potential of the sample surface can be tracked in real time by using the atomic force microscope probe 10 while performing electrochemical testing. When the surface potential is measured, the solid-state battery is connected with the atomic force microscope conducting table through the conducting copper adhesive, and the surface potential change can be tracked in real time. The physical property changes of the battery section such as appearance, modulus, surface potential and the like at different temperatures can be obtained by applying different temperatures (20-60 ℃) through the temperature control device 9. By researching the in-situ change of physical characteristics such as interface morphology, modulus, surface potential and the like of the battery in the charging and discharging processes of the battery, the failure mechanism of the solid-state battery can be effectively analyzed.
In the above example, all experiments were performed in a glove box under argon atmosphere with a water oxygen value <0.1ppm, ensuring that the lithium ion battery is not affected by air.
Above-mentioned each embodiment only is used for explaining the utility model discloses, wherein structure, connected mode and the preparation technology etc. of each part all can change to some extent, all are in the utility model discloses equal transform and improvement of going on technical scheme's the basis all are within the utility model's protection scope.
Claims (8)
1. The utility model provides a solid-state battery testing arrangement that is used for atomic force microscope's variable temperature, a serial communication port, testing arrangement includes battery anchor clamps, positioner and temperature regulating device, battery anchor clamps include current conducting plate and insulation board, temperature regulating device establishes the below at battery anchor clamps, positioner includes two cylindrical distance tables and a horizontally fillet rectangle distance table, be equipped with convex locating pin in the distance table, positioner establishes on the medial surface of current conducting plate, and the medial surface of insulation board is equipped with the correspondence the locating hole of locating pin.
2. The testing device of claim 1, wherein the outer side of the insulating plate is provided with a second positioning device, the positioning holes are through holes penetrating through the inner side and the outer side of the insulating plate, one end of each positioning pin is inserted into the corresponding positioning hole and penetrates out of the outer side of the insulating plate to be connected with the second positioning device, and the second positioning device can drive the insulating plate to be close to or far away from the conductive plate to quantitatively adjust the distance between the conductive plate and the insulating plate.
3. The testing device of claim 2, wherein the second positioning device comprises a micrometer screw and a connecting plate, the micrometer screw is disposed on the connecting plate, a screw of the micrometer screw penetrates through the connecting plate and is connected to the insulating plate, the positioning pin penetrates through the positioning hole and is connected to the connecting plate, when the micrometer screw is rotated, the connecting plate and the positioning pin are fixed, the screw drives the insulating plate to move close to or away from the conductive plate along the positioning pin, and the distance between the conductive plate and the insulating plate is quantitatively changed.
4. The testing device of claim 3, wherein the second positioning device is detachably connected to the insulating plate, the connecting plate is made of stainless steel, the micrometer screw is detachable from the connecting plate, and the connecting plate can move along the positioning pin towards the insulating plate and is attached to the outer side surface of the insulating plate.
5. The testing device of claim 4, wherein the micrometer screw has a locking means, and when the position of the insulating plate is adjusted, the locking means is fixed so that the screw and the insulating plate cannot move.
6. The testing device of claim 1, wherein the conductive plate comprises a first horizontal plate and a first vertical block fixedly connected with the first horizontal plate, and the first horizontal plate and the first vertical block form a T-shaped conductive plate; the insulating plate comprises a second horizontal plate and a second vertical block vertically and fixedly connected with the second horizontal plate, and the second horizontal plate and the second vertical block form a T-shaped insulating plate.
7. The testing device of claim 1, wherein the temperature of the temperature control device is controlled within a range of 20-60 ℃, and the bottom of the temperature control device is provided with a magnet for attracting the battery clamp to the temperature control device by magnetic force.
8. The testing device of claim 1, further comprising a solid-state battery preparation device, wherein the solid-state battery preparation device is a cuboid groove body detachably arranged on the inner side surface of the conductive plate, the cuboid groove body is provided with a bottom surface and three side surfaces, the bottom surface is attached to the inner side surface of the conductive plate, the first side surface is flush with the upper surface of the conductive plate, and the second side surface and the third side surface are respectively arranged on two sides of the first side surface and are perpendicular to the first side surface and the inner side surface of the conductive plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020630570.XU CN212111479U (en) | 2020-04-23 | 2020-04-23 | Temperature-variable solid-state battery testing device for atomic force microscope |
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| CN202020630570.XU CN212111479U (en) | 2020-04-23 | 2020-04-23 | Temperature-variable solid-state battery testing device for atomic force microscope |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337715A (en) * | 2020-04-23 | 2020-06-26 | 中国科学院化学研究所 | Device for observing surface interface of temperature-changing solid-state battery by using in-situ electrochemical atomic force microscope |
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- 2020-04-23 CN CN202020630570.XU patent/CN212111479U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337715A (en) * | 2020-04-23 | 2020-06-26 | 中国科学院化学研究所 | Device for observing surface interface of temperature-changing solid-state battery by using in-situ electrochemical atomic force microscope |
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