CN113391224A - Detachable three-electrode battery testing device and assembling method thereof - Google Patents
Detachable three-electrode battery testing device and assembling method thereof Download PDFInfo
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- CN113391224A CN113391224A CN202110809382.2A CN202110809382A CN113391224A CN 113391224 A CN113391224 A CN 113391224A CN 202110809382 A CN202110809382 A CN 202110809382A CN 113391224 A CN113391224 A CN 113391224A
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- upper cover
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
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Abstract
The invention discloses a detachable three-electrode battery testing device and an assembling method thereof, wherein the device comprises a shell, a lead screw, an extrusion assembly and a reference electrode assembly, wherein the shell comprises a base, a first sealing ring and an upper cover; a positioning groove is formed in the cavity bottom of the base; the upper cover is detachably connected to the top end of the base; the first sealing ring is arranged between the upper cover and the base; the lead screw penetrates through the upper cover and the first sealing ring to be in threaded connection with the base. The invention can realize the test and research of the self impedance and the change condition of the electrode plate, can research and analyze the dynamics mechanism in the electrode chemical process, can judge and analyze the cause of the decline of the battery capacity, has strong sealing performance, avoids gas leakage and liquid leakage, can realize thousands of cycles of power or energy storage batteries, improves the labor efficiency, has simple structure, reasonable arrangement, lower cost and stronger practicability, and the assembly method has the advantages of safety, fewer steps, simplicity and easy operation.
Description
Technical Field
The invention relates to the field of battery testing, in particular to a detachable three-electrode battery testing device and an assembling method thereof.
Background
The two-electrode button cell has the advantages of small volume, small material consumption, low cost, relatively simple and convenient assembly, convenient test and the like, and is widely used as a main evaluation means of the anode and cathode materials of the cell. However, the two-electrode button cell battery also has significant drawbacks and disadvantages in electrochemical analysis studies, mainly expressed in: 1. the impedance and the change condition of the electrode plate can not be tested and researched, and the dynamics mechanism in the electrode chemical process can not be researched and analyzed. 2. The cause of the battery capacity degradation cannot be judged and analyzed. In fact, the end of life and the capacity decline of the battery are usually caused by one electrode or electrolyte factor, and the real-time online detection of the cause of the capacity decline of the battery is very important for improving and increasing the service life of the battery. Based on the defects of the two-electrode button cell battery, a three-electrode battery testing module is often required to be used in research, but the currently used three-electrode battery testing module generally has different types of defects and defects, and particularly has more prominent defects in the aspect of lithium ion battery research. The commercially available three-electrode battery test module is heavy and inconvenient to assemble and use, and the reference electrode is not fixed in position, so that the stability, accuracy and consistency of a test result cannot be guaranteed. In addition, the existing three-electrode battery testing module has the defects of poor sealing performance, air leakage, liquid leakage and the like. Therefore, the use of such a three-electrode cell test module does not satisfy the need for a cell to be used in electrochemical analytical research and performance testing, nor for thousands of cycles of power or energy storage cells.
Therefore, a detachable three-electrode battery testing device and an assembling method thereof are needed, which can test and research the impedance and the change condition of the electrode plate, can research and analyze the dynamic mechanism in the electrode chemical process, can judge and analyze the cause of the battery capacity decline, has strong sealing performance, can avoid gas leakage and liquid leakage, can realize thousands of cycles of power or energy storage batteries, and improve the labor efficiency, and are one of the technical problems to be solved urgently in the field.
Disclosure of Invention
In view of the above, the present invention provides a detachable three-electrode battery testing apparatus and an assembling method thereof. The purpose is to solve the above-mentioned deficiency and offer.
In order to solve the technical problems, the invention adopts the following technical scheme:
a detachable three-electrode battery testing device, comprising: the shell comprises a base, a first sealing ring and an upper cover; a positioning groove is formed in the cavity bottom of the base; the upper cover is detachably connected to the top end of the base; the first sealing ring is arranged between the upper cover and the base; the lead screw penetrates through the upper cover and the first sealing ring to be in threaded connection with the base; the extrusion assembly comprises a first insulating sleeve, a pressing block and a first spring; the first insulating sleeve is arranged inside the base; a first non-through hole is formed in the top end of the first insulating sleeve, and a lug extends downwards from the first non-through hole; the lug is matched with the positioning groove; the pressing block is arranged inside the first insulating sleeve; the first spring is arranged between the pressing block and the shell; a reference electrode assembly including a reference electrode bolt, a second spring, and a compression post; a clamping ring is arranged on the reference electrode bolt; the reference electrode bolt is clamped between the first insulating sleeve and the upper cover through the clamping ring; one end of the reference electrode bolt extends into the first non-through hole and is sleeved with the second spring; one end of the compression column is abutted against the second spring, and the other end of the compression column is abutted against the bottom of the first non-through hole.
Preferably, the reference electrode bolt is cylindrical as a whole and made of metal materials such as stainless steel, copper and aluminum.
Preferably, the base is made of metals such as stainless steel and copper, the whole base is a cylindrical cavity, a non-through hole for mounting the foot pad is formed in the bottom of the base, a positioning groove is formed in the bottom surface of the inner cavity, a threaded hole is formed in the upper edge of the base, the side face is in a concave-convex design, and the wall thickness is 3-20 mm.
Preferably, the upper cover is made of metal materials such as stainless steel and aluminum, and the thickness of the upper cover is 1-10 mm; the upper part of the groove is provided with a step-shaped through hole; a cylindrical metal handle with the diameter of 2-10mm is arranged on the upper cover; oval or round holes can be arranged on the metal handle according to the requirement.
Preferably, the first sealing ring is circular and 1-6mm thick, is made of rubber, polytetrafluoroethylene, silica gel or plastic and the like, and is provided with a through hole for sealing and insulating.
Preferably, the compression column is integrally cylindrical, is made of metal materials such as stainless steel, copper and aluminum, and has a diameter of 2-15mm and a height of 5-20 mm.
Preferably, the first spring is made of metal such as stainless steel, spring steel, aluminum or copper.
Preferably, the second spring is made of metal material such as stainless steel, spring steel, aluminum or copper.
Preferably, the whole filling sleeve is cylindrical, the wall thickness is 0.5-20mm, the material is plastic, rubber or polytetrafluoroethylene, and the like, and the filling sleeve is arranged on the pressing block; a central through hole is formed in the filling sleeve; the upper surface is provided with a small round hole, which is convenient for clamping.
Preferably, the whole lead screw is integrally arranged, is made of metal materials such as stainless steel, aluminum or copper and has the diameter of 2-10 mm; the round head screw with the elliptical hole can be arranged as required.
Preferably, the whole pressing block is cylindrical, the thickness of the pressing block is 0.5-20mm, the pressing block is made of metal materials such as stainless steel, copper and aluminum, and a cylindrical handle with the diameter of 1-20mm is arranged on the pressing block; the edge of the side wall is provided with a circular, semicircular or elliptical through hole.
Preferably, the pressing block is provided with a convex column; the first spring is sleeved on the convex column.
Preferably, the extrusion assembly further comprises a filling sleeve; the filling sleeve is arranged between the first spring and the first insulating sleeve.
Preferably, the reference electrode assembly further comprises a second sealing ring; the second sealing ring is arranged between the clamping ring and the upper cover.
Preferably, the device further comprises a plurality of fastening screws; each fastening screw penetrates through the upper cover and the first sealing ring to be in threaded connection with the base.
Preferably, the fastening screw is made of metal materials such as stainless steel, aluminum or copper and the like, and the diameter of the fastening screw is 2-10 mm; the round head hole screw can be arranged as required.
Preferably, a second insulating sleeve is arranged between the lead screw, the reference electrode bolt and each fastening screw and the upper cover.
Preferably, the second insulating sleeve is in a step shape, the wall thickness is 0.1-5mm, and the second insulating sleeve is made of plastic, polytetrafluoroethylene insulating materials and the like.
Preferably, a nut is arranged on each of the lead screw, the reference electrode bolt and each of the fastening screws; each nut is abutted against the top end of the upper cover.
Preferably, the nut is in a butterfly shape, a gold ingot shape or a claw shape, is made of metal materials such as stainless steel, aluminum or copper or plastic materials, and is matched with the lead screw, the fastening screw and the reference electrode screw for use so as to be screwed and sealed.
Preferably, a second non-through hole is formed in the bottom end of the base; the second non-through hole is provided with a foot pad.
Preferably, the foot pad is a conical buckled rubber plug with a plug, and is made of rubber, polytetrafluoroethylene, silica gel or plastic and the like.
The invention also discloses an assembly method of the detachable three-electrode battery testing device, which comprises the following steps:
s1, arranging the foot pad in the second non-through hole and stably placing the base;
s2, placing the first insulating sleeve in a cavity of the base;
s3, placing a positive/negative plate and a diaphragm which are used for battery testing, dropping electrolyte, placing a negative/positive plate in the first insulating sleeve from bottom to top in sequence, and then placing the pressing block on the negative/positive plate;
s4, placing the filling sleeve on the pressing block, and sleeving the first spring on the convex column of the pressing block;
s5, placing the cut lithium sheet or other pole pieces used for testing into the bottom of the first non-through hole, pressing the lithium sheet or other pole pieces by using the pressing column, and applying pressure by using the second spring;
s6, placing the first sealing ring on the base, and placing the upper cover on the first sealing ring;
s7, sleeving the second insulating sleeves on the lead screw, the reference electrode bolt and the fastening screws, and screwing the lead screw, the reference electrode bolt and the fastening screws into corresponding positions of the upper cover;
s8, screwing nuts into the lead screw, the reference electrode bolt and the fastening screws, and finishing installation.
Compared with the prior art, the invention has the following technical effects:
the invention realizes that the position of the reference electrode is completely fixed, and the distance between the reference electrode and the research electrode is consistent with that of the counter electrode, thereby completely eliminating the impedance of the counter electrode in the impedance test, enabling the counter electrode to be used for testing the self impedance of the research electrode, and ensuring the stability, accuracy and consistency of the test result. Meanwhile, the excellent sealing performance of the battery can be realized, and the method can be effectively used for researching the long-cycle performance and the capacity fading mechanism of the battery. The short circuit in the battery can be avoided, the assembly is simple and convenient, the assembly of the battery can be completed quickly and efficiently, the disassembly and the cleaning are easy, the repeated use can be realized, and the cost is lower.
Drawings
FIG. 1 is a schematic structural diagram of a detachable three-electrode battery testing device according to the present invention;
FIG. 2 is a cross-sectional view of a detachable three-electrode battery testing device according to the present invention;
FIG. 3 is a schematic diagram of a reference electrode assembly of the detachable three-electrode battery testing device according to the present invention;
fig. 4 is a schematic structural diagram of a first insulating sleeve of a detachable three-electrode battery testing device according to the present invention.
In the figure: 1. a housing; 11. a base; 111. a positioning groove; 112. a second non-through hole; 113. a foot pad; 12. a first seal ring; 13. an upper cover; 131. a second insulating sleeve; 132. a nut; 2. a wire screw; 3. an extrusion assembly; 31. a first insulating sleeve; 311. a first non-through hole; 312. a bump; 32. briquetting; 33. a first spring; 34. filling the sleeve; 4. a reference electrode assembly; 41. a reference electrode bolt; 411. a snap ring; 42. a second spring; 43. pressing the column; 44. a second seal ring; 5. and (5) fastening the screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-4, a detachable three-electrode battery testing apparatus includes: the device comprises a shell 1, a lead screw 2, a pressing component 3, a reference electrode component 4 and a plurality of fastening screws 5, wherein the shell 1 comprises a base 11, a first sealing ring 12 and an upper cover 13; the bottom of the cavity of the base 11 is provided with a positioning groove 111, and the bottom end of the base 11 is provided with a second non-through hole 112; the second non-through hole 112 is provided with a foot pad 113, the foot pad 113 is a conical buckle type rubber plug with a plug, and the material of the foot pad 113 is rubber, polytetrafluoroethylene, silica gel or plastic and the like; the upper cover 13 is detachably connected to the top end of the base 11; the first sealing ring 12 is annular, 1-6mm thick, made of rubber, polytetrafluoroethylene, silica gel or plastic, and provided with a through hole, and the first sealing ring 12 is arranged between the upper cover 13 and the base 11 to play a role in sealing and insulating. The lead screw 2 is an integrated whole, is made of metal materials such as stainless steel, aluminum or copper and has the diameter of 2-10 mm; round-head screws with elliptical holes can be arranged as required, and the lead screws 2 penetrate through the upper cover 13 and the first sealing ring 12 to be in threaded connection with the base 11; the extrusion assembly 3 comprises a first insulating sleeve 31, a pressing block 32, a first spring 33 and a filling sleeve 34, wherein the first insulating sleeve 31 is arranged inside the base 11; a first non-through hole 311 is formed at the top end of the first insulating sleeve 31, and a bump 312 extends downwards from the first non-through hole 311; the projection 312 is matched with the positioning groove 111; the pressing block 32 is arranged inside the first insulating sleeve 31; the first spring 33 is made of metal such as stainless steel, spring steel, aluminum or copper, and is disposed between the pressing block 32 and the housing 1; a filling sleeve 34 is disposed between the first spring 33 and the first insulating sleeve 31. The reference electrode assembly 4 comprises a reference electrode bolt 41, a second spring 42, a compression leg 43 and a second sealing ring 44, wherein the reference electrode bolt 41 is provided with a clamping ring 411, the reference electrode bolt 41 is integrally cylindrical and is made of metal materials such as stainless steel, copper and aluminum; the reference electrode bolt 41 is clamped between the first insulating sleeve 31 and the upper cover 13 through a clamping ring 411; one end of the reference electrode bolt 41 extends into the first non-through hole 311 and is sleeved with a second spring 42, and the second spring 42 is made of metal materials such as stainless steel, spring steel, aluminum or copper; the compression column 43 is integrally cylindrical, is made of metal materials such as stainless steel, copper, aluminum and the like, has the diameter of 2-15mm and the height of 5-20mm, one end of the compression column 43 is abutted with the second spring 42, and the other end of the compression column is abutted with the hole bottom of the first non-through hole 311; the second seal ring 44 is disposed between the snap ring 411 and the upper cover 13. Each fastening screw 5 penetrates through the upper cover 13 and the first sealing ring 12 to be in threaded connection with the base 11; the material of each fastening screw 5 is metal material such as stainless steel, aluminum or copper, the diameter is 2-10mm, and the fastening screws can be set into round head hole screws as required.
In this embodiment, the upper cover 13 is made of metal such as stainless steel and aluminum, and a stepped through hole is formed in the upper portion thereof; the thickness of the upper cover 13 is 1-10 mm; a cylindrical metal handle with the diameter of 2-10mm is arranged on the upper cover 13; oval or round holes can be arranged on the metal handle according to the requirement.
In this embodiment, the filling sleeve 34 is cylindrical, has a wall thickness of 0.5-20mm, is made of plastic, rubber or polytetrafluoroethylene, and is mounted on the pressing block 32; the filling sleeve 34 is provided with a central through hole; the upper surface is provided with a small round hole, which is convenient for clamping.
In the embodiment, the pressing block 32 is integrally cylindrical, has a thickness of 0.5-20mm, is made of metal materials such as stainless steel, copper, aluminum and the like, and is provided with a cylindrical handle with a diameter of 1-20 mm; the edge of the side wall is provided with a circular, semicircular or elliptical through hole, and the pressing block 32 is provided with a convex column; the first spring 33 is sleeved on the convex column.
In this embodiment, a second insulating sleeve 131 is arranged between the lead screw 2, the reference electrode bolt 41, each fastening screw 5 and the upper cover 13, the second insulating sleeve 131 is in a step shape, the wall thickness is 0.1-5mm, and the second insulating sleeve 131 is made of plastic, polytetrafluoroethylene insulating material and the like; and the lead screw 2, the reference electrode bolt 41 and each fastening screw 5 are provided with a nut 132, the nut 132 is butterfly-shaped, ingot-shaped or claw-shaped, is made of metal materials such as stainless steel, aluminum or copper or plastic materials, is matched with the lead screw 2, the fastening screw 5 and the reference electrode bolt for use and is used for screwing and sealing, and each nut 132 is abutted against the top end of the upper cover 13.
In the embodiment, an assembling method of the detachable three-electrode battery testing device is also disclosed, which comprises the following steps:
s1, arranging a foot pad 113 in a second non-through hole 112, and stably placing a base 11;
s2, placing a first insulating sleeve 31 in the cavity of the base 11;
s3, placing a positive/negative plate and a diaphragm which are used for battery testing, dropping electrolyte, placing a negative/positive plate in the first insulating sleeve 31 from bottom to top in sequence, and then placing a pressing block 32 on the negative/positive plate;
s4, placing a filling sleeve 34 on the pressing block 32, and sleeving a first spring 33 on the convex column of the pressing block 32;
s5, placing the cut lithium sheet or other pole pieces used for testing into the bottom of the first non-through hole 311, pressing the lithium sheet or other pole pieces by using a pressing column 43, and applying pressure by using a second spring 42;
s6, placing the first sealing ring 12 on the base 11, and placing the upper cover 13 on the first sealing ring 12;
s7, sleeving a second insulating sleeve 131 on the lead screw 2, the reference electrode bolt 41 and the fastening screws 5, and screwing the lead screw 2, the reference electrode bolt 41 and the fastening screws 5 into corresponding positions of the upper cover 13;
and S8, screwing nuts 132 on the lead screw 2, the reference electrode bolt 41 and the fastening screws 5 to finish installation.
In other embodiments, the matching manner of the base 11 and the corresponding first insulating sleeve 31 can be adjusted according to the actual situation.
In other embodiments, the materials of the first sealing ring 12, the foot pad 113, the nut 132, the lead screw 2, the first insulating sleeve 31, the second insulating sleeve 131, the reference electrode bolt 41, the second sealing ring 44, and the fastening screw 5 may be adjusted according to actual conditions.
In other embodiments, the shapes of the first sealing ring 12, the foot pad 113, the nut 132, the lead screw 2, the first insulating sleeve 31, the second insulating sleeve 131, the reference electrode bolt 41, the second sealing ring 44, and the fastening screw 5 may be adjusted according to actual conditions.
Compared with the prior art, the invention has the following technical effects:
the invention realizes that the position of the reference electrode is completely fixed, and the distance between the reference electrode and the research electrode is consistent with that of the counter electrode, thereby completely eliminating the impedance of the counter electrode in the impedance test, enabling the counter electrode to be used for testing the self impedance of the research electrode, and ensuring the stability, accuracy and consistency of the test result. Meanwhile, the excellent sealing performance of the battery can be realized, and the method can be effectively used for researching the long-cycle performance and the capacity fading mechanism of the battery. The short circuit in the battery can be avoided, the assembly is simple and convenient, the assembly of the battery can be completed quickly and efficiently, the disassembly and the cleaning are easy, the repeated use can be realized, and the cost is lower.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (9)
1. A detachable three-electrode battery testing device is characterized by comprising:
the sealing device comprises a shell (1), wherein the shell (1) comprises a base (11), a first sealing ring (12) and an upper cover (13); a positioning groove (111) is formed in the cavity bottom of the base (11); the upper cover (13) is detachably connected to the top end of the base (11); the first sealing ring (12) is arranged between the upper cover (13) and the base (11);
the lead screw (2) penetrates through the upper cover (13) and the first sealing ring (12) to be in threaded connection with the base (11);
the extrusion assembly (3), the extrusion assembly (3) comprises a first insulating sleeve (31), a pressing block (32) and a first spring (33); the first insulating sleeve (31) is arranged inside the base (11); a first non-through hole (311) is arranged in the first insulating sleeve (31); a bump (312) is formed by extending the bottom of the first non-through hole (311) downwards, and the bump (312) is matched with the positioning groove (111); the pressing block (32) is arranged inside the first insulating sleeve (31); the first spring (33) is arranged between the pressing block (32) and the shell (1);
a reference electrode assembly (4), the reference electrode assembly (4) comprising a reference electrode bolt (41), a second spring (42), and a compression post (43); a clamping ring (411) is arranged on the reference electrode bolt (41); the reference electrode bolt (41) is clamped between the first insulating sleeve (31) and the upper cover (13) through the clamping ring (411); one end of the reference electrode bolt (41) extends into the first non-through hole (311) and is sleeved with the second spring (42); one end of the pressure column (43) abuts against the second spring (42), and the other end abuts against the bottom of the first non-through hole (311).
2. The removable three-electrode battery testing device according to claim 1, wherein the pressing block (32) is provided with a convex column; the first spring (33) is sleeved on the convex column.
3. A removable three-electrode battery testing device according to claim 1, characterized in that the pressing assembly (3) further comprises a filling sleeve (34); the filling sleeve (34) is arranged between the first spring (33) and the first insulating sleeve (31).
4. A removable three electrode battery testing device according to claim 1, wherein the reference electrode assembly (4) further comprises a second sealing ring (44); the second sealing ring (44) is arranged between the clamping ring (411) and the upper cover (13).
5. A removable three-electrode battery testing device according to claim 1, characterized by further comprising a plurality of fastening screws (5); each fastening screw (5) penetrates through the upper cover (13) and the first sealing ring (12) to be in threaded connection with the base (11).
6. A detachable three-electrode battery testing device according to any one of claims 1 or 4, characterized in that a second insulating sleeve (131) is provided between the upper cover (13) and the lead screw (2), the reference electrode bolt (41), and each of the fastening screws (5).
7. A detachable three-electrode battery testing device according to any one of claims 1 or 4, characterized in that a nut (132) is provided on the lead screw (2), the reference electrode bolt (41) and each of the fastening screws (5); each nut (132) abuts against the top end of the upper cover (13).
8. The detachable three-electrode battery testing device as claimed in claim 1, wherein the bottom end of the base (11) is provided with a second non-penetrating hole (112); a foot pad (113) is arranged at the bottom of the second non-through hole (112).
9. An assembling method of a detachable three-electrode battery testing device is characterized by comprising the following steps:
s1, arranging the foot pad (113) in the second non-through hole (112), and stably placing the base (11);
s2, placing the first insulating sleeve (31) in a cavity of the base (11);
s3, placing a positive/negative plate and a diaphragm which are used for battery testing, dropping electrolyte, placing a negative/positive plate in the first insulating sleeve (31) from bottom to top in sequence, and then placing the pressing block (32) on the negative/positive plate;
s4, placing the filling sleeve (34) on the pressing block (32), and sleeving the first spring (33) on the convex column of the pressing block (32);
s5, placing the cut lithium sheet or other pole pieces used for testing into the bottom of the first non-through hole (311), pressing by using the pressing column (43), and applying pressure by using the second spring (42);
s6, placing the first sealing ring (12) on the base (11), and placing the upper cover (13) on the first sealing ring (12);
s7, sleeving the second insulating sleeve (131) on the lead screw (2), the reference electrode bolt (41) and the fastening screws (5), and screwing the lead screw (2), the reference electrode bolt (41) and the fastening screws (5) into corresponding positions of the upper cover (13);
s8, screwing nuts (132) on the lead screw (2), the reference electrode bolt (41) and the fastening screws (5), and finishing installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110809382.2A CN113391224A (en) | 2021-07-17 | 2021-07-17 | Detachable three-electrode battery testing device and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110809382.2A CN113391224A (en) | 2021-07-17 | 2021-07-17 | Detachable three-electrode battery testing device and assembling method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113391224A true CN113391224A (en) | 2021-09-14 |
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| CN202110809382.2A Pending CN113391224A (en) | 2021-07-17 | 2021-07-17 | Detachable three-electrode battery testing device and assembling method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019390A (en) * | 2021-09-30 | 2022-02-08 | 广东微电新能源有限公司 | Three-electrode battery testing device |
| CN114420962A (en) * | 2021-12-23 | 2022-04-29 | 重庆长安工业(集团)有限责任公司 | Positioning and assembling device for chemical reserve battery reactor |
| CN115656301A (en) * | 2022-10-26 | 2023-01-31 | 蔚来汽车科技(安徽)有限公司 | Electrode potential measuring device and method for pole piece |
-
2021
- 2021-07-17 CN CN202110809382.2A patent/CN113391224A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019390A (en) * | 2021-09-30 | 2022-02-08 | 广东微电新能源有限公司 | Three-electrode battery testing device |
| CN114420962A (en) * | 2021-12-23 | 2022-04-29 | 重庆长安工业(集团)有限责任公司 | Positioning and assembling device for chemical reserve battery reactor |
| CN115656301A (en) * | 2022-10-26 | 2023-01-31 | 蔚来汽车科技(安徽)有限公司 | Electrode potential measuring device and method for pole piece |
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