CN219534577U

CN219534577U - Solid electrolyte jig

Info

Publication number: CN219534577U
Application number: CN202320116992.9U
Authority: CN
Inventors: 洪汉洋; 王益; 李希龙; 齐琼琼; 魏奕民
Original assignee: Initial Energy Science & Technology Xiamen Co ltd
Current assignee: Initial Energy Science & Technology Xiamen Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-08-15
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a solid electrolyte jig which comprises a jig body, a pressing seat, a first terminal and a second terminal, wherein the pressing seat is arranged on the jig body; the jig body is of a hollow structure, and a blocking edge is arranged in the inner cavity of the jig body; the pressing seat is of a hollow structure, is in threaded connection with the first port of the jig body, and is clamped with a pressing washer between the pressing seat and the blocking edge; the first terminal is provided with a first pressing column, the first pressing column penetrates through the pressing seat and stretches into the jig body, the first pressing column is in sealing fit with the pressing gasket, the first pressing column is matched with a first sealing ring, and the first sealing ring is in sealing fit with the first pressing column and the pressing seat; the second terminal is provided with a second pressing column, the second pressing column stretches into the jig body from a second port of the jig body, the second pressing column is matched with a second sealing ring, and the second sealing ring is matched with the second pressing column and the jig body in a sealing mode. The solid electrolyte jig has the advantages of good sealing effect and good pressurizing effect.

Description

Solid electrolyte jig

Technical Field

The utility model relates to the field of lithium batteries, in particular to a solid electrolyte jig.

Background

Compared with the traditional liquid electrolyte lithium battery, the all-solid-state lithium battery has the following advantages: the high safety/thermal stability, the electrochemical window of more than 5V, the capability of matching high voltage materials, the capability of only conducting lithium ion and not conducting electrons, and the capability of connecting in series in a battery pack to form a single battery with high voltage.

The solid electrolyte of the all-solid-state lithium battery is the most main core component, and the most main performance indexes for judging the performance quality of the solid electrolyte are ion conductivity, lithium metal interface stability and all-battery performance; when the solid electrolyte is subjected to electrochemical test, a solid electrolyte test sample (such as solid electrolyte powder, a solid electrolyte sheet and an all-solid-state lithium battery) is generally put into a jig, the solid electrolyte test sample is pressurized by pressurizing the jig, and then electrochemical tests (namely test procedures) of different projects are performed on the solid electrolyte test sample; however, the existing jig is generally poor in sealing performance, so that air in the jig can be discharged during pressurization for the purpose of setting, and two terminals of the jig can be directly contacted with a solid electrolyte test sample to effectively pressurize the solid electrolyte test sample, and the pressurizing effect is good; however, due to poor tightness of the jig, when a solid electrolyte test sample sensitive to air humidity is tested, the jig can only be placed into large inert atmosphere equipment such as a glove box and the like so as to avoid the influence of the air humidity on the test result, but the large inert atmosphere equipment such as the glove box and the like has high cost and troublesome operation, and the test efficiency of the solid electrolyte is influenced.

In view of the above, it is necessary to develop a solid electrolyte jig having a good sealing effect and a good pressurizing effect.

Disclosure of Invention

The utility model aims to provide a solid electrolyte jig with good sealing effect and good pressurizing effect.

In order to achieve the above object, the solution of the present utility model is:

a solid electrolyte fixture comprises a fixture body, a pressing seat, a first terminal and a second terminal; the jig body is of a hollow structure, and a blocking edge is arranged in the inner cavity of the jig body; the pressing seat is of a hollow structure, is in threaded connection with the first port of the jig body, and is clamped with a pressing washer between the pressing seat and the blocking edge; the first terminal is provided with a first pressing column, the first pressing column penetrates through the pressing seat and stretches into the jig body, the first pressing column is in sealing fit with the pressing gasket, the first pressing column is matched with a first sealing ring, and the first sealing ring is in sealing fit with the first pressing column and the pressing seat; the second terminal is provided with a second pressing column, the second pressing column stretches into the jig body from a second port of the jig body, the second pressing column is matched with a second sealing ring, and the second sealing ring is matched with the second pressing column and the jig body in a sealing mode.

The jig body is made of ceramic materials.

The first terminal and the second terminal are made of conductive materials.

The length of the first pressing column is greater than the length of the inner cavity of the jig body.

After the scheme is adopted, the solid electrolyte test sample is filled into the solid electrolyte jig in the utility model by the following steps: firstly, assembling a second terminal and a second sealing ring, extending a second pressing column of the second terminal into the jig body from a second port of the jig body, assembling a first terminal and a first sealing ring, and penetrating a first pressing column of the first terminal through a pressing seat; then placing a solid electrolyte test sample into the jig body from a first port of the jig body; then, inserting a first pressing column of the first terminal into the jig body from a first port of the jig body, and screwing the pressing seat with the first port of the jig body; then, the first terminal is moved so that the first pressing column and the second pressing column are respectively contacted with two sides of the sample; and finally, screwing the pressing seat so that the pressing seat presses the pressing gasket to enable the pressing gasket to be in sealing fit with the first pressing column. The first terminal and the second terminal are pressed to press the solid electrolyte test sample accommodated in the jig body, and the first terminal and the second terminal can be directly transmitted to the solid electrolyte test sample to enable the first terminal and the second terminal to compact the solid electrolyte test sample, so that the pressurizing effect is ensured; the arrangement of the pressing gasket, the first sealing ring and the second sealing ring can ensure the sealing effect and prevent the solid electrolyte sample from being wetted, so that the restriction of large inert atmosphere equipment such as a glove box is not required to be avoided when the electrochemical is carried out on the solid electrolyte sample sensitive to air humidity, the cost is reduced, and the efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

description of the reference numerals:

the fixture body 1, the blocking edge 11,

the pressing seat 2 is pressed down, and the pressing seat is fixed on the pressing seat,

the first terminals 3, the first press studs 31,

the second terminals 4, second press studs 41,

the gasket 5 is pressed down and the gasket is pressed,

the first sealing ring (6) is provided with a first sealing ring,

a second sealing ring 7 is provided which is arranged on the inner side of the first sealing ring,

a first insulating cover 8 is provided which,

a second insulating cover 9.

Detailed Description

In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.

As shown in fig. 1 and 2, the present utility model discloses a solid electrolyte jig, which comprises a jig body 1, a pressing seat 2, a first terminal 3 and a second terminal 4; wherein, the jig body 1 is of a hollow structure, and a blocking edge 11 is arranged in the inner cavity of the jig body 1; the compressing seat 2 is of a hollow structure, the compressing seat 2 is in threaded connection with the first port of the jig body 1, and a compressing washer 5 is clamped between the compressing seat 2 and the blocking edge 11; the first terminal 3 is provided with a first pressing column 31, the first pressing column 31 penetrates through the pressing seat 2 and stretches into the jig body 1, the first pressing column 31 is in sealing fit with the pressing gasket 5, the first pressing column 31 is matched with a first sealing ring 6, and the first sealing ring 6 is in sealing fit with the first pressing column 31 and the pressing seat 2; the second terminal 4 is provided with a second pressing column 41, the second pressing column 41 stretches into the jig body 1 from a second port of the jig body 1, the second pressing column 41 is matched with a second sealing ring 7, and the second sealing ring 7 is matched with the second pressing column 41 and the jig body 1 in a sealing mode.

The method for loading the solid electrolyte test sample into the solid electrolyte jig comprises the following steps: firstly, assembling the second terminal 4 and the second sealing ring 7, extending the second pressing column 41 of the second terminal 4 into the jig body 1 from the second port of the jig body 1, assembling the first terminal 3 and the first sealing ring 6, and penetrating the first pressing column 31 of the first terminal 3 through the pressing seat 2; then placing a solid electrolyte test sample into the jig body 1 from a first port of the jig body 1; then, inserting the first pressing column 31 of the first terminal 3 into the jig body 1 from the first port of the jig body 1, and screwing the pressing seat 2 with the first port of the jig body 1; then, the first terminal 3 is moved so that the first press column 31 and the second press column 41 contact both sides of the sample, respectively; finally, the compression seat 2 is screwed so that the compression seat 2 presses the compression washer 5 to cause the compression washer 5 to be in sealing engagement with the first compression column 31. The first terminal 3 is moved to enable the first pressing column 31 and the second pressing column 41 to respectively contact two sides of a sample, then the pressing seat 2 is screwed tightly, the pressing seat 2 presses the pressing gasket 5 to enable the pressing gasket 5 to be in sealing fit with the first pressing column 31, air in the jig body 1 can be discharged, and therefore when the first terminal 3 and the second terminal 4 are pressurized to pressurize a solid electrolyte test sample accommodated in the jig body 1, the pressure of the first terminal 3 and the second terminal 4 can be directly transmitted to the solid electrolyte test sample to enable the first terminal 3 and the second terminal 4 to compact the solid electrolyte test sample, and the pressurizing effect is ensured; the arrangement of the compression gasket 5, the first sealing ring 6 and the second sealing ring 7 can ensure the sealing effect and avoid the solid electrolyte sample from being wetted, so that the restriction of large inert atmosphere equipment such as a glove box and the like is not needed when the solid electrolyte sample sensitive to air humidity is subjected to electrochemistry, the cost is reduced, and the efficiency is improved.

In the embodiment of the present utility model, the jig body 1 is made of ceramic, so that the jig body 1 has high pressure resistance, and the solid electrolyte jig of the present utility model can bear higher pressure.

In the embodiment of the utility model, the first terminal 3 and the second terminal 4 are made of conductive materials, so that the utility model can energize the solid electrolyte test sample accommodated in the jig body 1 through the first terminal 3 and the second terminal 4; the first terminal 3 and the second terminal 4 may be respectively sleeved with a first insulating cover 8 and a second insulating cover 9.

In the embodiment of the present utility model, the length of the first pressing post 31 of the first terminal 3 is greater than the length of the inner cavity of the jig body 1, so that after the solid electrolyte test sample is tested, the first terminal 3 can be pressed by the die ejector, so that the first pressing post 31 of the first terminal 3 ejects the second terminal 3 and the solid electrolyte test sample, thereby facilitating die ejection.

The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.

Claims

1. A solid electrolyte jig is characterized in that: comprises a jig body, a pressing seat, a first terminal and a second terminal;

the jig body is of a hollow structure, and a blocking edge is arranged in the inner cavity of the jig body;

the pressing seat is of a hollow structure, is in threaded connection with the first port of the jig body, and is clamped with a pressing washer between the pressing seat and the blocking edge;

the first terminal is provided with a first pressing column, the first pressing column penetrates through the pressing seat and stretches into the jig body, the first pressing column is in sealing fit with the pressing gasket, the first pressing column is matched with a first sealing ring, and the first sealing ring is in sealing fit with the first pressing column and the pressing seat;

the second terminal is provided with a second pressing column, the second pressing column stretches into the jig body from a second port of the jig body, the second pressing column is matched with a second sealing ring, and the second sealing ring is matched with the second pressing column and the jig body in a sealing mode.

2. The solid electrolyte jig according to claim 1, wherein: the jig body is made of ceramic materials.

3. The solid electrolyte jig according to claim 1, wherein: the first terminal and the second terminal are made of conductive materials.

4. The solid electrolyte jig according to claim 1, wherein: the length of the first pressing column is greater than the length of the inner cavity of the jig body.