CN214795127U - In-situ solid-state battery spectrum device with pressure application and monitoring functions - Google Patents
In-situ solid-state battery spectrum device with pressure application and monitoring functions Download PDFInfo
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- CN214795127U CN214795127U CN202120365231.8U CN202120365231U CN214795127U CN 214795127 U CN214795127 U CN 214795127U CN 202120365231 U CN202120365231 U CN 202120365231U CN 214795127 U CN214795127 U CN 214795127U
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Abstract
The utility model discloses an in-situ solid-state battery spectrum device with exerting pressure and monitoring function, including pressure drive arrangement, pressure perception device, the in-situ spectrum solid-state battery device that are used for exerting pressure, are used for perception pressure, pressure drive arrangement connects the top of pressure perception device, the in-situ spectrum solid-state battery device is connected to the bottom of pressure perception device; the pressure driving device, the pressure sensing device and the in-situ spectrum solid-state battery device are positioned on the same axis. The utility model has the advantages that: by applying different external pressures and sensing the change condition of the internal stress electrochemical process of the battery in the charging and discharging processes, the change condition of the internal stress along with the electrochemical process under different pressure states is obtained; the in-situ spectroscopy solid-state battery device realizes in-situ spectroscopy research on an electrode material in the charging and discharging processes; more efficient and selective research data can be obtained.
Description
Technical Field
The utility model relates to a material structure-mechanism normal position sign field especially relates to a normal position solid state battery spectrum device.
Background
Widespread adoption of Electric Vehicles (EV) is highly dependent on the development of high performance electrochemical energy storage systems. Over the past few years, conventional Lithium Ion Batteries (LIBs) have typically been used to power electric vehicles, although these batteries still face serious challenges such as the flammability of organic liquid electrolytes, limited operating temperature and voltage ranges, and limited capacity. All solid-state lithium ion batteries are a promising alternative to overcome the above-mentioned drawbacks by using a non-combustible solid electrolyte. At the same time, they are not only less of a safety concern, but can facilitate high energy density batteries by adding lithium metal anodes. Despite the great advantages of ASSB (sabo, car name), many factors still need to be addressed. For example, non-combustible solid electrolytes, particularly polymer solid electrolytes, have poor ionic conductivity, and interfacial incompatibility at the interface of the electrolyte and the active material severely hinders their development. Because the physical mismatch between the two solid phases forms a void at the interface, as compared to a liquid electrolyte. In a solid-state battery, a composite cathode is generally manufactured by mixing an electrolyte, an active material, and a conductive agent. The microstructure and morphological properties of the composite material depend on the mixing conditions, such as external pressing pressure and temperature, while poor interfacial contact limits the transport pathway of lithium ions. Furthermore, during lithiation/delithiation, changes in the volume of the active material particles can lead to the accumulation of localized stresses in the microstructure, the propagation of cracks and the decay of capacity. Therefore, in the solid-state battery, the stress structural change of the internal structure and the externally applied pressure have a critical effect on the internal microstructure thereof, as compared with the liquid-state electrolyte battery. Also, most cathode active materials swell during lithiation. Although negligible compared to the volume change observed in alloy-based anode active materials, this is critical in all-solid batteries due to the solid/solid contact at the interface. In other words, while liquid electrolyte batteries can accommodate the slight volume expansion of the cathode AM, for solid state batteries even small volume changes can result in particle breakage and eventual pulverization. Therefore, it is also of great scientific interest to study the evolution of interfacial resistance and stress that is exacerbated by the continued expansion/contraction during cycling of solid-state batteries. How to realize the external pressure control of the all-solid-state battery and how to monitor the change of the internal stress of the battery along with the charging and discharging process under a certain pressure condition has not only scientific research significance for researchers, but also very important practical significance for the commercial development of the battery.
In addition, X-rays are an effective spectroscopic research tool with sufficient penetration strength, and can be generally used as a detection tool which is most important for researching internal structure change and stress change of the solid-state battery. How to effectively integrate the detection method of X-ray spectroscopy into the scientific research is undoubtedly an increased interest for researchers to research solid-state batteries, and is very helpful for the rapid development of all-solid-state batteries.
The main sources of interfacial resistance at the interface of the solid electrolyte and the active material are poor physical contact, electrochemical instability of the interface during cycling, and chemical mechanical strain at the interface due to volume changes. One effective method for researching the interface contact is to apply different pressures to the outside, and currently, researchers mainly realize the application of a solid electrolyte battery mould capable of applying pressure, but the disadvantage of using the mould is that only one pressure can be applied in a single use process, and the mould is completely locked by a screw after a fixed pressure is applied, so that the pressure change condition in the charging and discharging process cannot be detected. The method brings great difficulty for researchers to research the influence of different external forces on the battery and understand the pressure change in the charging and discharging processes. In the aspect of detecting the internal stress change of the battery, a commonly used research method at present is to use a multi-beam optical stress sensor, and the stress/strain in the film is related to the curvature in the circulating process through the sensor, but the method is difficult and time-consuming in performing an in-situ experiment, and the detection experiment efficiency is too low.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the problem that the efficiency of the detection method of the existing in-situ solid-state battery spectrum device for the stress structure change of the internal structure of the solid electrolyte is too low is solved.
The utility model discloses a following technical means realizes solving above-mentioned technical problem:
the in-situ solid-state battery spectrum device with the functions of pressing and monitoring comprises a pressure driving device for applying pressure, a pressure sensing device for sensing the pressure and an in-situ spectrum solid-state battery device, wherein the pressure driving device is connected with the top end of the pressure sensing device, and the bottom end of the pressure sensing device is connected with the in-situ spectrum solid-state battery device; the pressure driving device, the pressure sensing device and the in-situ spectrum solid-state battery device are positioned on the same axis.
The utility model discloses the working process: the in-situ spectrum solid-state battery device is taken down and taken into the glove box, electrode materials and electrolyte materials are filled into the glove box and then taken out of the glove box, the in-situ spectrum solid-state battery device is put back to the in-situ spectrum solid-state battery device, human-computer interface interaction can be carried out through a computer connected with a control circuit and provided with control software, pressure application setting is carried out, and a characterization experiment is carried out.
The utility model can effectively apply various external pressures with different sizes to the solid-state battery through the pressure driving device at the top, thereby realizing scientific research on the influence of different external pressures on the performance of the all-solid-state battery; meanwhile, after a certain external pressure is applied, the pressure sensing device can sense the battery at any time in the charging and discharging process and is used for realizing the research on the internal stress change of the battery; through an in-situ spectrum solid-state battery device, comprising various spectrum testing methods such as visible light, X-ray and the like, the research on the phase structure change and the battery performance change of an electrolyte material in the charging and discharging cycle process under the pressure condition which can be monitored is carried out; the device is suitable for a novel high-energy-density solid electrolyte material battery system, and new vitality and thought can be injected for developing efficient and selective efficient electrode materials by acquiring the in-situ data.
Preferably, the in-situ spectroscopy solid-state battery device comprises a pressure battery shell, a first pressure head electrode and a second pressure head electrode, wherein the first pressure head electrode is hermetically installed on the upper portion of the pressure battery shell, the second pressure head electrode is hermetically installed on the lower portion of the pressure battery shell, the installation positions of the electrode material and the electrolyte material are between the first pressure head electrode and the second pressure head electrode, and the positions of the pressure battery shell corresponding to the installation positions of the electrode material and the electrolyte material are the window positions of the X-ray.
Preferably, the pressure battery shell is of a hollow structure in an 8-shaped structure, step-shaped tapered holes which are symmetrical up and down are formed in the pressure battery shell, the first pressure head electrode is a step-shaped tapered body and is mounted in the step-shaped tapered hole in the upper portion through a sealing ring, the second pressure head electrode is a step-shaped tapered body and is mounted in the step-shaped tapered hole in the lower portion through a sealing ring.
Preferably, the first indenter electrode and the second indenter electrode are both made of metal materials, and the cylindrical surfaces of the small ends of the first indenter electrode and the second indenter electrode are provided with wire holes for inserting a power supply.
The charging and discharging of the internal battery are realized by the contact of the first pressure head electrode and the second pressure head electrode with electrode materials, and the wire hole on the outer cylindrical surface of the tail end of the first pressure head electrode can facilitate the insertion of a power supply lead.
Preferably, the top end of the first pressure head electrode is provided with a limiting plate located outside the pressure cell shell, and the top surface of the limiting plate which can be limited outside the pressure cell shell is a plane which is a pressure bearing surface.
Preferably, the pressure cell further comprises an insulating positioning seat, and the bottom of the pressure cell shell and the bottom of the second pressure head electrode are connected with the insulating positioning seat.
Preferably, the pressure sensing device includes a pressure sensor, an insulating protection cylinder and a pressurizing head, the pressurizing head is arranged in the insulating protection cylinder along the axis, the top end of the pressure sensor is connected with the pressure applying device, the bottom end of the pressure sensor is connected with the pressurizing head, the bottom end of the insulating protection cylinder is a closed end, and the bottom end of the insulating protection cylinder is connected with the top end of the in-situ spectrum solid-state battery device.
Preferably, the device further comprises a die pressure spring, the bottom of the pressurizing head is provided with a guide pillar, the die pressure spring is arranged in the insulation protection cylinder, and the guide pillar extends into the die pressure spring.
The insulating protection cylinder can guarantee that the electric conductivity between the first pressure head electrode and the die pressure spring is isolated, the die pressure spring is fixed, and various high polymer materials can be selected as the materials.
The pressure that the mould pressure spring can directly exert pressure with pressure drive arrangement carries out indirect pressure conduction, makes things convenient for the restoration of pressure sensor and pressure head when removing pressure simultaneously.
Preferably, the device further comprises a plurality of support rods, and the top ends of the support rods are connected with the pressure driving device.
Preferably, the support rod further comprises a base, and the bottom end of the support rod is connected with the top surface of the base.
The utility model has the advantages that:
(1) the utility model can effectively apply various external pressures with different sizes to the solid-state battery through the pressure driving device at the top, thereby realizing scientific research on the influence of different external pressures on the performance of the all-solid-state battery; meanwhile, after a certain external pressure is applied, the pressure sensing device can sense the battery at any time in the charging and discharging process and is used for realizing the research on the internal stress change of the battery; through an in-situ spectrum solid-state battery device, comprising various spectrum testing methods such as visible light, X-ray and the like, the research on the phase structure change and the battery performance change of an electrolyte material in the charging and discharging cycle process under the pressure condition which can be monitored is carried out; the device is suitable for a novel high-energy-density solid electrolyte material battery system; then obtaining more efficient and selective original data of the high-efficiency electrode material;
(2) the insulating protection cylinder can ensure the conductive isolation between the first pressure head electrode and the die pressure spring and realize the fixation of the die pressure spring, and the material can be selected from various high polymer materials;
(3) the pressure spring of the die can conduct indirect pressure conduction on the pressure directly applied by the pressure driving device, and meanwhile, the pressure sensor and the pressurizing head can be conveniently reset when the pressure is removed;
(4) the pressure battery comprises a pressure battery shell, a sealing ring and an insulation positioning seat, wherein the materials of the components can be selected from high polymer materials for processing and forming, such as polyether-ether-ketone (PEEK) high polymer materials, and the high polymer materials not only have the high strength of metal materials, but also have the insulation function, and can play a role in preventing a working electrode of the battery from contacting other metal components to cause short circuit;
(5) the first pressure head electrode and the second pressure head electrode are both formed by processing metal materials, and the high-strength corrosion-resistant characteristic is required to be met, namely, the conductive contact of the internal electrode material is ensured, and the pressure provided by the upper pressure driving device can be conducted to the electrode material and the electrolyte material in real time.
Drawings
FIG. 1 is a schematic structural diagram of an in-situ solid-state battery spectroscopy apparatus with pressure application and monitoring functions according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
reference numbers in the figures: 1. a pressure driving device; 2. a pressure sensing device; 21. a pressure sensor; 22. an insulating protection cylinder; 23. a pressurizing head; 24. a die pressure spring; 3. an in-situ spectroscopic solid state battery device; 31. a pressure cell housing; 32. a first indenter electrode; 33. a second indenter electrode; 34. an insulating positioning seat; 35. a seal ring; 4. a support bar; 5. a base;
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, the in-situ solid-state battery spectroscopic apparatus with pressure application and monitoring functions includes a pressure driving apparatus 1 for applying pressure, a pressure sensing apparatus 2 for sensing pressure, an in-situ spectroscopic solid-state battery apparatus 3, a plurality of support rods 4, and a base 5, wherein the pressure driving apparatus 1 is connected to a top end of the pressure sensing apparatus 2, and a bottom end of the pressure sensing apparatus 2 is connected to the in-situ spectroscopic solid-state battery apparatus 3; the pressure driving device 1, the pressure sensing device 2 and the in-situ spectrum solid-state battery device 3 are located on the same vertical axis, the top end of the supporting rod 4 is connected with the pressure driving device 1, and the bottom end of the supporting rod 4 is connected with the top surface of the base 5.
The base 5 and the support rod 4 are both made of metal materials, so that the strength of the structure is ensured, the mass is reduced, and the whole device is light and durable; the base 5 and the support rod 4 can be fixedly connected with the pressure driving device 1 to limit the position of the solid-state battery, and the support facilitates the pressure applied by the pressure driving device 1 to act on the battery.
In this embodiment, the pressure driving device 1 is responsible for the pressure application function of the whole solid-state battery, and can be directly connected with an external control system and software, so that the real-time control of the applied pressure can be realized, and the pressure monitoring can be conveniently performed while the battery material characterization is performed by matching with a spectrum characterization instrument.
In this embodiment, the in-situ spectroscopy solid-state battery device 3 generally comprises the battery case itself, the spectroscopy window, and various types of fixing members, and is mainly used for in-situ spectroscopy characterization for matching X-rays and visible light. The design of the visible light in-situ spectrum solid-state battery can adopt the design in the prior art; this example shows a specific embodiment of an X-ray based in-situ spectroscopy solid-state battery device 3.
As shown in fig. 2, the in-situ spectroscopy solid-state battery device 3 includes a pressure battery case 31, a first header electrode 32, a second header electrode 33, an insulating positioning seat 34, and a sealing ring 35;
the pressure battery shell 31 is of a hollow structure (hourglass structure) in an 8-shaped structure, step-shaped tapered holes which are symmetrical up and down are formed in the pressure battery shell 31, and the step-shaped tapered holes can be installed and can limit the first pressure head electrode 32 and the second pressure head electrode 33; the central part (contraction part) of the pressure battery shell 31 is the position of the electrode material and the electrolyte material of the battery, and is also the window position of the X ray, so the wall thickness of the position needs to meet the penetrating work requirement of the X ray, the thickness needs to meet the requirement of 10-1000um, and the X ray penetrating capability of the electrode plate position is ensured, thereby realizing the in-situ monitoring functions of X ray imaging, X ray diffraction and other various spectroscopy, and realizing the in-situ spectroscopy research of the electrode material in the charging and discharging process. The pressure battery shell 31 can be made of a high polymer material, such as a polyether ether ketone (PEEK) high polymer material, and the high polymer material has high strength and an insulating function, and can prevent the battery working electrode from contacting other metal parts to cause short circuit.
The first pressure head electrode 32 is a step-shaped conical body, a groove is formed in the outer portion of the cylindrical surface of the bottom end of the first pressure head electrode 32, a sealing ring 35 is installed in the groove, and the first pressure head electrode 32 is installed in the step-shaped conical hole in the upper portion; similarly, the second ram electrode 33 is a step-shaped conical body, a groove is formed outside the second ram electrode 33, a sealing ring 35 is installed in the groove, and the second ram electrode 33 is installed in a step-shaped conical hole located at the lower part.
The installation positions of the electrode material and the electrolyte material are arranged between the first pressure head electrode 32 and the second pressure head electrode 33, and correspond to the window position of the X-ray on the pressure battery shell 31.
The first indenter electrode 32 and the second indenter electrode 33 are both formed by processing metal materials, and need to satisfy the characteristics of high strength and corrosion resistance, i.e. the conductive contact of the internal electrode material is ensured, and the pressure provided by the upper pressure driving device 1 can be transmitted to the electrode material and the electrolyte material in real time.
The cylindrical surfaces of the small ends of the first indenter electrode 32 and the second indenter electrode 33 are provided with wire holes for inserting a power supply. The charging and discharging of the internal battery are realized by the contact of the first pressure head electrode 32 and the second pressure head electrode 33 with electrode materials, and the wire holes on the outer cylindrical surface of the tail end of the first pressure head electrode can facilitate the insertion of a power supply lead.
The top end of the first pressure head electrode 32 is provided with a limiting plate located outside the pressure battery shell 31, the limiting plate and the first pressure head electrode 32 are integrally formed, the limiting plate can be limited outside the pressure battery shell 31, the top surface of the limiting plate is a plane, and the plane is a pressure bearing surface and is in contact connection with the bottom of the pressure sensing device 2.
The bottom of the pressure battery shell 31 and the bottom of the second pressure head electrode 33 are connected with the insulating positioning seat 34, and the insulating positioning seat 34 is installed on the base 5 through bolts.
The working process of the embodiment is as follows:
taking the in-situ spectrum solid-state battery device 3 down from the whole device, taking the device into a glove box, taking the first pressure head electrode 32 down, loading electrode materials and electrolyte materials, inserting the first pressure head electrode 32 back, taking the device out from the glove box, placing the in-situ spectrum solid-state battery device 3 on a corresponding position of a base 5, controlling a pressure driving device 1 through software, and driving a pressure sensing device 2 to descend until the pressure sensing device contacts a pressure bearing surface of the first pressure head electrode 32; the external power line connected with the battery can be used for carrying out the charge and discharge test of the blue tester, and then the whole device is placed at the position of a sample table of the corresponding characterization instrument; meanwhile, the control circuit is connected with a computer provided with control software, and man-machine interface interaction can be carried out to set the applied pressure; finally, the characterization experiment can be carried out.
In the embodiment, the pressure driving device 1 at the top can effectively apply various external pressures with different sizes to the solid-state battery, so that scientific research on the influence of different external pressures on the performance of the all-solid-state battery is realized; meanwhile, after a certain external pressure is applied, the pressure sensing device 2 can sense the battery at any time in the charging and discharging process and is used for realizing the research on the internal stress change of the battery; through the in-situ spectrum solid-state battery device 3, including various spectrum testing methods such as visible light and X-ray, the research on the phase structure change and the battery performance change of the electrolyte material in the charging and discharging cycle process under the pressure condition which can be monitored; the device is suitable for novel high-energy-density solid electrolyte material battery systems, such as polymer and composite solid electrolyte materials, and the like, and the acquisition of the in-situ data can inject new vitality and ideas for developing more efficient and selective efficient electrode materials.
Example two:
as shown in fig. 2, in addition to the first embodiment, in the present embodiment, the pressure sensing device 2 includes a pressure sensor 21, an insulating protection cylinder 22, a pressurizing head 23, and a die compression spring 24; the device is mainly used for connecting the pressure driving device 1 and the in-situ spectrum solid-state battery device 3 and is responsible for the functions of pressure transmission and monitoring.
The top end of the pressure sensor 21 is in threaded connection with the pressure driving device 1, the bottom end of the pressure sensor is in threaded connection with the pressurizing head 23, the pressure driving device 1 can monitor and monitor the pressure applied to the in-situ spectrum solid-state battery device 3 in real time through the pressure sensor 21, information transmission and real-time feedback of control software are conveniently carried out on the pressure driving device 1, and the pressure sensing range and the pressure precision of the pressure sensor 21 are matched with those of the pressure driving device 1.
The pressurizing head 23 is a cylinder and is arranged in the insulating protection cylinder 22 along the vertical axis direction, the outer diameter of the pressurizing head 23 is slightly smaller than the inner diameter of the insulating protection cylinder 22, and the pressurizing head 23 and the insulating protection cylinder 22 can be in transition fit. The bottom of the pressurizing head 23 is provided with a guide post, the die compression spring 24 is arranged in the insulation protection cylinder 22, and the guide post extends into the die compression spring 24. The pressure spring 24 of the mold can indirectly transmit the pressure directly applied by the pressure driving device 1, and facilitate the resetting of the pressure sensor 21 and the pressurizing head 23 when the pressure is removed.
The insulating protection cylinder 22 is a cylinder structure with an open top end and a closed bottom end, and the bottom end of the insulating protection cylinder 22 is connected with the top end of the in-situ spectrum solid-state battery device 3, specifically, is in contact connection with the top surface of the first ram electrode 32. The insulating protection cylinder 22 can ensure that the first pressure head electrode 32 and the die pressure spring 24 are isolated in conductivity, the die pressure spring 24 is fixed, and various high polymer materials can be selected as the materials.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The in-situ solid-state battery spectrum device with the functions of pressure application and monitoring is characterized by comprising a pressure driving device for applying pressure, a pressure sensing device for sensing the pressure and an in-situ spectrum solid-state battery device, wherein the pressure driving device is connected with the top end of the pressure sensing device, and the bottom end of the pressure sensing device is connected with the in-situ spectrum solid-state battery device; the pressure driving device, the pressure sensing device and the in-situ spectrum solid-state battery device are positioned on the same axis.
2. The in-situ solid-state cell spectroscopy apparatus with pressure exertion and monitoring functions of claim 1, wherein the in-situ solid-state cell spectroscopy apparatus comprises a pressure cell housing, a first indenter electrode and a second indenter electrode, the first indenter electrode is hermetically mounted on the upper portion of the pressure cell housing, the second indenter electrode is hermetically mounted on the lower portion of the pressure cell housing, an installation position of the electrode material and the electrolyte material is between the first indenter electrode and the second indenter electrode, and a position of the pressure cell housing corresponding to the installation position of the electrode material and the electrolyte material is a window position of the X-ray.
3. The in-situ solid-state battery spectroscopic apparatus with pressure application and monitoring functions as claimed in claim 2, wherein the pressure battery casing has a hollow structure with an 8-shaped structure, the pressure battery casing has step-shaped tapered holes symmetrical up and down inside, the first indenter electrode is a step-shaped tapered body, the first indenter electrode is mounted in the step-shaped tapered hole at the upper part through a sealing ring, the second indenter electrode is a step-shaped tapered body, and the second indenter electrode is mounted in the step-shaped tapered hole at the lower part through a sealing ring.
4. The in-situ solid-state cell spectroscopy apparatus with pressure exertion and monitoring functions of claim 2, wherein the first indenter electrode and the second indenter electrode are both made of metal material, and the cylindrical surfaces of the small ends of the first indenter electrode and the second indenter electrode are provided with wire holes for inserting a power supply.
5. The in-situ solid-state cell spectroscopy apparatus with pressure application and monitoring functions of claim 2, wherein the top end of the first indenter electrode has a limiting plate located outside the pressure cell housing, and the top surface of the limiting plate that can be constrained outside the pressure cell housing is a plane that is a pressure bearing surface.
6. The in-situ solid-state cell spectroscopy device with pressure application and monitoring of claim 2, further comprising an insulating positioning socket, the bottom of the pressure cell housing and the bottom of the second header electrode being connected to the insulating positioning socket.
7. The in-situ solid-state battery spectroscopy apparatus with pressure application and monitoring functions of claim 1, wherein the pressure sensing device comprises a pressure sensor, an insulating protection cylinder, and a pressure head, the pressure head is disposed in the insulating protection cylinder along an axis, a top end of the pressure sensor is connected to the pressure application device, a bottom end of the pressure sensor is connected to the pressure head, a bottom end of the insulating protection cylinder is a closed end, and a bottom end of the insulating protection cylinder is connected to a top end of the in-situ solid-state battery spectroscopy apparatus.
8. The in-situ solid-state battery spectroscopy apparatus with pressure application and monitoring functions of claim 7, further comprising a mold compression spring, wherein the bottom of the pressure head has a guide post, the mold compression spring is embedded in the insulation protection cylinder, and the guide post extends into the mold compression spring.
9. The in-situ solid-state cell spectroscopy apparatus with pressure application and monitoring functions of claim 1, further comprising a plurality of support rods, wherein the top ends of the support rods are connected to the pressure driving device.
10. The in-situ solid-state cell spectroscopy apparatus with pressure application and monitoring of claim 9, further comprising a base, wherein the bottom end of the support rod is connected to the top surface of the base.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115621591A (en) * | 2022-12-16 | 2023-01-17 | 合肥视微科技有限公司 | Battery normal position image device with displacement detection function |
| CN116046804A (en) * | 2023-02-23 | 2023-05-02 | 四川新能源汽车创新中心有限公司 | Solid-state battery in-situ test method |
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2021
- 2021-02-09 CN CN202120365231.8U patent/CN214795127U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115621591A (en) * | 2022-12-16 | 2023-01-17 | 合肥视微科技有限公司 | Battery normal position image device with displacement detection function |
| CN116046804A (en) * | 2023-02-23 | 2023-05-02 | 四川新能源汽车创新中心有限公司 | Solid-state battery in-situ test method |
| CN116046804B (en) * | 2023-02-23 | 2024-02-09 | 四川新能源汽车创新中心有限公司 | Solid-state battery in-situ test method |
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