CN218382928U

CN218382928U - Auxiliary device for testing all-solid-state battery

Info

Publication number: CN218382928U
Application number: CN202222500194.4U
Authority: CN
Inventors: 陈刚; 刘丹; 陈学兵
Original assignee: Wuhan Guli New Energy Technology Co ltd
Current assignee: Wuhan Guli New Energy Technology Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-01-24
Anticipated expiration: 2032-09-21

Abstract

The utility model discloses an auxiliary device is used in test of all-solid-state battery relates to power battery test technical field, including supporting disk, first slip dish, the last fixed surface of supporting disk is connected with down the fore-set. It can be through lower support pillar, the cooperation of tight mechanism in top and slide mechanism, can prevent to take place deformation after the test battery expansion and contraction, lead to the problem of battery mass flow body and support pillar contact variation, and can prevent the perk at assembling in-process electrolyte membrane and negative pole piece edge, thereby can improve the accuracy of test result, in the all solid-state mould battery cycle test of having solved, because the battery is at the expansion and contraction of charge-discharge in-process negative pole, and all kinds of side reactions, can lead to metal utmost point post and battery mass flow body interface contact variation, the mould battery of locking appears becoming flexible even, increase battery test internal resistance, lead to battery test result variation, the problem of test characterization failure.

Description

Auxiliary device for testing all-solid-state battery

Technical Field

The utility model relates to a power battery tests technical field, specifically is an auxiliary device is used in test of all-solid-state battery.

Background

A lithium ion battery is a rechargeable battery that operates by primarily relying on the movement of the lithium ion battery between a positive electrode and a negative electrode. With the rapid development of new energy electric vehicles, the traditional lithium ion battery has hidden troubles of liquid leakage, fire and the like because the traditional lithium ion battery contains liquid organic electrolyte, and the energy density of the traditional lithium ion battery is difficult to break through 350Wh/Kg even when the traditional high-nickel ternary silicon-carbon system is adopted, so that the further improvement of the endurance mileage of the new energy electric vehicles is limited. On the other hand, the solid-state lithium battery adopting the solid electrolyte to replace the liquid electrolyte is expected to realize higher energy density of 500Wh/Kg, and meanwhile, the incombustibility of the solid electrolyte also improves the performance of the battery. The solid electrolyte material has good stability at higher temperature, wide electrochemical window and higher mechanical strength, and can effectively inhibit the occurrence of dendritic crystal piercing of metal lithium.

At present, in the cycle test of an all-solid-state die battery, because the expansion and shrinkage of a negative electrode in the charging and discharging process of the battery and various side reactions can cause the interface contact deterioration of a metal pole and a current collector of two electrodes of the battery, even the locked die battery becomes loose, the internal resistance of the battery test is increased, the battery test result is deteriorated, and the test characterization fails, so that the auxiliary device for testing the all-solid-state battery is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an all solid-state battery test is with auxiliary device in order to compensate prior art not enough.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an auxiliary device for all solid-state battery test, includes supporting disk, first sliding disc, the upper surface fixedly connected with of supporting disk is the fore-set down, the first through-hole of two sets of mutual symmetries is seted up to the upper surface of supporting disk, and is two sets of the insulating sleeve of two mutual symmetries of the equal fixedly connected with of inside wall of first through-hole, two the second through-hole has all been seted up to insulating sleeve's lower extreme, the first connecting column of inside wall fixedly connected with of second through-hole, the bottom fixedly connected with supporting leg of first connecting column, the first supporting column of top fixedly connected with of first connecting column, the top of first supporting column is provided with slewing mechanism, the third through-hole of two sets of mutual symmetries is seted up to the upper surface of first sliding disc, and is two sets of the inside wall of third through-hole all is connected with the surface sliding of first supporting column, the below of first sliding disc is provided with the tight mechanism in top, the below of the tight mechanism in top is provided with slide mechanism, the insulator is installed to the below of slide mechanism.

Preferably, the rotating mechanism comprises a fixed disc, the lower surface of the fixed disc is fixedly connected with the top end of the first supporting column, and the upper surface of the fixed disc is provided with a threaded hole.

Preferably, the inside wall threaded connection of screw hole has the threaded rod, the top fixedly connected with rolling disc of threaded rod, the bottom of threaded rod is connected with the last fixed surface of supporting disk.

Preferably, the tight mechanism in top includes the second spliced pole, the top of second spliced pole and the lower fixed surface of first slip dish are connected, the slip chamber has been seted up to the bottom of second spliced pole, the interior roof fixedly connected with elastic component in slip chamber, the bottom fixedly connected with slider of elastic component.

Preferably, the outer surface of the sliding block is in sliding connection with the inner side wall of the sliding cavity, the lower surface of the sliding block is fixedly connected with a second supporting column, and the bottom end of the second supporting column is fixedly connected with a connecting disc.

Preferably, the sliding mechanism comprises a second sliding disc, the upper surface of the second sliding disc is fixedly connected with the lower surface of the connecting disc, and two groups of fourth through holes which are symmetrical to each other are formed in the upper surface of the second sliding disc.

Preferably, the inner side walls of the two groups of fourth through holes are in sliding connection with the outer surface of the first supporting column, and the lower surface of the second sliding disc is fixedly connected with an upper ejection column.

Has the advantages that:

compared with the prior art, the auxiliary device for testing the all-solid-state battery has the following beneficial effects:

1. the utility model discloses a lower support pillar, the cooperation of tight mechanism in top and slide mechanism, can prevent to take place deformation after the test battery expansion and contraction, lead to the problem of battery mass flow body and support pillar contact variation, and can prevent the perk at electrolyte membrane and negative pole piece edge in the assembling process, thereby can improve the accuracy of test result, solved in all solid-state mould battery cycle test, because the battery is the expansion and contraction of charge-discharge in-process negative pole, and all kinds of secondary reactions, can lead to metal utmost point post and battery two poles of the earth mass flow body interface contact variation, it is not hard up to appear in the mould battery of locking even, increase battery test internal resistance, lead to battery test result variation, the problem of test sign failure.

2. The utility model discloses a set up slewing mechanism, can be through rotating the rolling disc, and then drive the threaded rod and rotate to make the threaded rod remove downwards, drive first slip dish lapse simultaneously, finally make the quick fixed insulator of fore-set, realized the purpose of this device quick fixed insulator.

Drawings

Fig. 1 is a schematic view of a three-dimensional front view structure of the present invention;

FIG. 2 is a perspective front view of the present invention;

FIG. 3 is a disassembled view of the three-dimensional structure of the rotating mechanism of the present invention;

FIG. 4 is a three-dimensional structure exploded view of the tightening mechanism of the present invention;

fig. 5 is a schematic perspective view of the sliding mechanism of the present invention.

In the figure: 1. a support disc; 2. a lower support pillar; 3. a first through hole; 4. an insulating sleeve; 5. a second through hole; 6. a first connecting post; 7. supporting legs; 8. a first support column; 9. a rotating mechanism; 901. fixing the disc; 902. a threaded hole; 903. a threaded rod; 904. rotating the disc; 10. a first sliding tray; 11. a jacking mechanism; 1101. a second connecting column; 1102. a sliding cavity; 1103. an elastic member; 1104. a slider; 1105. a second support column; 1106. connecting the disc; 12. a third through hole; 13. a sliding mechanism; 1301. a second sliding tray; 1302. a fourth via hole; 1303. mounting a top pillar; 14. an insulator.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1-5, an auxiliary device for testing all-solid-state batteries, including supporting disk 1, first sliding disk 10, support disk 1's last fixed surface is connected with down fore-set 2, two sets of first through-hole 3 of mutual symmetry have been seted up to supporting disk 1's upper surface, two sets of insulating sleeve 4 of two mutual symmetries of the equal fixedly connected with of inside wall of first through-hole 3, second through-hole 5 has all been seted up to two insulating sleeve 4's lower extreme, the first spliced pole 6 of the inside wall fixedly connected with of second through-hole 5, the bottom fixedly connected with supporting leg 7 of first spliced pole 6, the first support column 8 of the top fixedly connected with of first spliced pole 6, the top of first support column 8 is provided with slewing mechanism 9.

Insulating sleeve 4 has isolated supporting disk 1 and first support column 8, first support column 6, supporting leg 7 direct contact here, makes supporting disk 1 not possess with first support column 6, supporting leg 7, the mutual electrically conductive function of first support column 8, when test operation, can press from both sides centre gripping supporting disk 1 with the crocodile, then communicates external conductor and tests.

The rotating mechanism 9 comprises a fixed disc 901, the lower surface of the fixed disc 901 is fixedly connected with the top end of the first support column 8, and the upper surface of the fixed disc 901 is provided with a threaded hole 902.

The threaded rod 903 is connected with the inner side wall threads of the threaded hole 902, the rotating disc 904 is fixedly connected to the top end of the threaded rod 903, and the bottom end of the threaded rod 903 is fixedly connected with the upper surface of the supporting disc 1.

The purpose of the device for rapid transmission is achieved by rotating the rotating disc 904, which in turn drives the threaded rod 903 to rotate, so that the threaded rod 903 moves downwards and drives the first sliding disc 10 to slide downwards.

Two sets of third through-holes 12 of mutual symmetry are seted up to the upper surface of first sliding tray 10, and the inside wall of two sets of third through-holes 12 all is provided with top tight mechanism 11 with the surface sliding connection of first support column 8, the below of first sliding tray 10.

The jacking mechanism 11 comprises a second connecting column 1101, the top end of the second connecting column 1101 is fixedly connected with the lower surface of the first sliding disc 10, a sliding cavity 1102 is formed in the bottom end of the second connecting column 1101, an elastic part 1103 is fixedly connected to the inner top wall of the sliding cavity 1102, and a sliding block 1104 is fixedly connected to the bottom end of the elastic part 1103.

The elastic member 1103 is preferably made of a spring.

The outer surface of the sliding block 1104 is slidably connected with the inner side wall of the sliding cavity 1102, the lower surface of the sliding block 1104 is fixedly connected with a second supporting column 1105, and the bottom end of the second supporting column 1105 is fixedly connected with a connecting disc 1106.

Through the elastic action of the elastic element 1103, a downward moving force acts on the slider 1104, a downward moving force is simultaneously applied to the connecting disc 1106, and a downward moving force is simultaneously applied to the upper ejection column 1303, so that the upper ejection column 1303 always acts an extrusion force on the positive and negative pole pieces and the electrolyte membrane in the insulator 14, and the purpose of extruding the positive and negative pole pieces and the electrolyte membrane in the insulator 14 at any time is achieved.

A sliding mechanism 13 is arranged below the tightening mechanism 11.

The sliding mechanism 13 comprises a second sliding disk 1301, the upper surface of the second sliding disk 1301 is fixedly connected with the lower surface of the connecting disk 1106, and two groups of symmetrical fourth through holes 1302 are formed in the upper surface of the second sliding disk 1301.

The inner side walls of the two groups of fourth through holes 1302 are both in sliding connection with the outer surface of the first support column 8, and the lower surface of the second sliding disc 1301 is fixedly connected with an upper top column 1303.

The second sliding plate 1301 acts on external force to slide downwards, so that the upper ejection column 1303 is inserted into the positive electrode accommodating cavity of the insulator 14 and is matched with the lower ejection column 2 to tightly push the positive and negative electrode plates and the electrolyte membrane in the insulator 14, and the purpose of rapidly fixing the insulator 14 by the device is achieved.

An insulator 14 is attached to the lower side of the slide mechanism 13.

The insulator 14 is positioned on the lower top column 2, a negative electrode accommodating cavity matched with the negative electrode piece is formed at the bottom of the insulator 14, a positive electrode accommodating cavity communicated with the negative electrode accommodating cavity and matched with the positive electrode piece is formed at the bottom of the insulator 14, the negative electrode accommodating cavity is used for accommodating the stacked negative electrode piece and an electrolyte membrane, the positive electrode accommodating cavity is used for accommodating the positive electrode piece, the aperture of the negative electrode accommodating cavity of the insulator 14 is consistent with the diameter of the lower top column 2, and the aperture of the positive electrode accommodating cavity of the insulator 14 is consistent with the diameter of the upper top column 1303.

The working principle is as follows: when the device is used, firstly, an electrolyte membrane and a negative plate are placed in a negative electrode containing cavity of an insulator 14, then the negative electrode containing cavity of the insulator 14 is sleeved outside a lower top post 2, then a positive plate is placed in a positive electrode containing cavity of the insulator 14, a rotating disc 904 is rotated to drive a threaded rod 903 to rotate, so that the threaded rod 903 moves downwards and drives a first sliding disc 10 to slide downwards, the purpose of quick transmission of the device is achieved, the first sliding disc 10 slides downwards and further drives a tightening mechanism 11 to move downwards and further drives a second sliding disc 1301 to slide downwards, so that an upper top post 1303 is inserted into the positive electrode containing cavity of the insulator 14 and is matched with a lower top post 2 to tighten the positive and negative plates and the electrolyte membrane inside the insulator 14, the purpose of quick fixation of the device for the insulator 14 is achieved, during detection operation, a downward moving force is applied to a sliding block 1104 through the elastic action of an elastic piece 1103, a downward moving force is applied to a connecting disc 1106, a downward moving force is applied to the upper top post 1303, and a downward moving force is applied to the electrolyte membrane inside the positive and the electrolyte membrane 14 of the insulator 14 and the electrolyte membrane 14 all the time is extruded.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an auxiliary device is used in test of all solid state battery, includes supporting disk (1), first sliding tray (10), its characterized in that: support disc (1) last fixed surface is connected with down fore-set (2), the upper surface of support disc (1) has seted up first through-hole (3) of two sets of mutual symmetries, and is two sets of insulating sleeve (4) of two mutual symmetries of the equal fixedly connected with of inside wall of first through-hole (3), two second through-hole (5) have all been seted up to the lower extreme of insulating sleeve (4), the first connecting column (6) of inside wall fixedly connected with of second through-hole (5), the bottom fixedly connected with supporting leg (7) of first connecting column (6), the first supporting column (8) of top fixedly connected with of first connecting column (6), the top of first supporting column (8) is provided with slewing mechanism (9), the third through-hole (12) of two sets of mutual symmetries are seted up to the upper surface of first sliding disc (10), and is two sets of the inside wall of third through-hole (12) all with the surface sliding connection of first supporting column (8), the below of first sliding disc (10) is provided with tight mechanism (11) in top, the tight below of top is provided with slide mechanism (13), and slide mechanism (13) installs below (14).

2. The auxiliary device for testing the all-solid-state battery according to claim 1, wherein: the rotating mechanism (9) comprises a fixed disc (901), the lower surface of the fixed disc (901) is fixedly connected with the top end of the first supporting column (8), and the upper surface of the fixed disc (901) is provided with a threaded hole (902).

3. The auxiliary device for testing the all-solid battery according to claim 2, wherein: the inside wall threaded connection of screw hole (902) has threaded rod (903), the top fixedly connected with rolling disc (904) of threaded rod (903), the bottom of threaded rod (903) is connected with the last fixed surface of supporting disk (1).

4. The auxiliary device for testing the all-solid battery according to claim 1, wherein: the jacking mechanism (11) comprises a second connecting column (1101), the top end of the second connecting column (1101) is fixedly connected with the lower surface of a first sliding disc (10), a sliding cavity (1102) is formed in the bottom end of the second connecting column (1101), an elastic part (1103) is fixedly connected to the inner top wall of the sliding cavity (1102), and a sliding block (1104) is fixedly connected to the bottom end of the elastic part (1103).

5. The auxiliary device for testing the all-solid-state battery according to claim 4, wherein: the outer surface of the sliding block (1104) is in sliding connection with the inner side wall of the sliding cavity (1102), the lower surface of the sliding block (1104) is fixedly connected with a second supporting column (1105), and the bottom end of the second supporting column (1105) is fixedly connected with a connecting disc (1106).

6. The auxiliary device for testing the all-solid battery according to claim 1, wherein: the sliding mechanism (13) comprises a second sliding disc (1301), the upper surface of the second sliding disc (1301) is fixedly connected with the lower surface of the connecting disc (1106), and two groups of symmetrical fourth through holes (1302) are formed in the upper surface of the second sliding disc (1301).

7. The auxiliary device for testing the all-solid-state battery according to claim 6, wherein: the inner side walls of the two groups of fourth through holes (1302) are in sliding connection with the outer surface of the first supporting column (8), and the lower surface of the second sliding disc (1301) is fixedly connected with an upper top column (1303).