CN218037239U

CN218037239U - Test line assembly for electrochemical workstation and electrochemical workstation

Info

Publication number: CN218037239U
Application number: CN202221708973.7U
Authority: CN
Inventors: 任玉梅
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-12-13
Anticipated expiration: 2032-06-30

Abstract

The utility model provides a test wire subassembly and electrochemistry workstation for electrochemistry workstation, the utility model discloses a test wire subassembly for electrochemistry workstation, including the test wire of working electrode, auxiliary electrode and reference electrode in connecting electrochemistry workstation respectively to and respectively with each the test extension line of connection can be dismantled to the test wire, and each the cladding has high temperature resistant insulating layer on the test extension line. Electrochemistry workstation is with test line subassembly, through can dismantling on each test line and be connected with the test extension line, can prolong the length of test line, be convenient for test different grade type and unidimensional battery to reduce the utmost point ear of participating in the test and receive the stress of test line at the in-process of test and drag, prevent that utmost point ear is not hard up or the fracture, through including high temperature insulation layer on the test extension line, can widen the operating temperature scope of test extension line.

Description

Test line assembly for electrochemical workstation and electrochemical workstation

Technical Field

The utility model relates to a lithium ion battery production technical field, in particular to test wire subassembly for electrochemistry workstation. And simultaneously, the utility model discloses still relate to one kind and dispose this electrochemistry workstation with test wire assembly's electrochemistry workstation.

Background

With the increasing importance of new energy vehicles, the requirements for the usability, reliability and safety of batteries are also increasing. During the use or storage process of the lithium ion battery, the phenomena of capacity attenuation, internal resistance increase, rate performance reduction, gas generation, liquid leakage, short circuit, deformation, thermal runaway, lithium precipitation and the like often occur, and the usability, reliability and safety are seriously reduced.

These failure phenomena are caused by the interaction of a complex series of chemical and physical mechanisms within the battery. The correct analysis and understanding of the failure phenomenon usually requires an electrochemical workstation to perform electrochemical tests such as capacitance-voltage test, direct current internal resistance test, alternating current impedance test, three-electrode charging and discharging and the like. However, the existing test line for the electrochemical workstation is limited by the structure of the test line, and cannot meet the electrochemical test requirements of soft packages and square batteries with different sizes and models.

In addition, the current test wire often causes utmost point ear to receive the very big stress that the test wire gave and involves at the in-process of testing the battery, leads to utmost point ear easy appearance not hard up or even fracture, influences follow-up test. In addition, the recommended use temperature range of the test line of the conventional electrochemical workstation is often narrow, and in the actual test process, the battery needs to be tested at an ambient temperature outside the recommended use temperature range of the test line, so that the test line is used at an excessively high or excessively low temperature for a long time, and the damage of the test line is easily accelerated.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an electrochemistry workstation is with test wire subassembly to in testing different grade type and not unidimensional battery, and widen the operating temperature range of test wire.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a test wire subassembly for electrochemistry workstation, includes the test wire of working electrode, auxiliary electrode and reference electrode in the connection electrochemistry workstation respectively to and respectively with each test wire can dismantle the test extension line of being connected, and each cladding has high temperature resistant insulating layer on the test extension line.

Furthermore, the high-temperature-resistant insulating layer is made of a silicon rubber material.

Furthermore, the test extension line is connected with the test line in an inserting mode.

Furthermore, the test extension line comprises an extension line body, and an extension line plug and an extension line socket which are respectively arranged at two ends of the extension line body, and the extension line socket is matched with the test plug on the test line and is connected with the test plug in an inserting manner.

Furthermore, the lengthened line plug and/or the test plug are banana plugs, and the lengthened line socket is a banana socket.

Furthermore, the banana plug and/or the banana socket are made of copper materials.

Furthermore, the lengthened line plug is used for being connected with the test clip;

the test clip is provided with a clamping part and an inserting part connected with the clamping part, and the lengthened line plug is inserted in the inserting part.

Further, the test clip adopts an alligator clip.

Furthermore, the conducting wire in the test lengthened line is made of copper materials.

Compared with the prior art, the utility model discloses following advantage has:

electrochemical workstation is with test line subassembly, through can dismantling on each test line and be connected with test extension line, can prolong the length of test line, be convenient for test different grade type and unidimensional battery, and reduce the utmost point ear of participating in the test and receive the stress of test line at the in-process of test and drag, prevent that utmost point ear is not hard up or the fracture, it has high temperature insulation layer to wrap up through on test extension line, can widen the operating temperature scope of test extension line, be convenient for test the battery under higher or lower ambient temperature.

In addition, the banana plugs and the banana sockets are respectively adopted by the lengthened line plugs and the lengthened line sockets which are respectively arranged at the two ends of the lengthened line body, so that the connection between the test lengthened line and the test line and the replacement of the test lengthened line are conveniently realized.

In addition, the alligator clip is adopted as the test clip, so that the connection between the test extension line and the test clip and the connection between the test clip and the battery tab are conveniently realized.

Another object of the present invention is to provide an electrochemical workstation, wherein the test line assembly for electrochemical workstation is provided in the electrochemical workstation

Electrochemical workstation, through being equipped with foretell electrochemical workstation and using test line subassembly, be convenient for realize that this electrochemical workstation tests different models, unidimensional battery, and is favorable to widening the operating temperature scope of this electrochemical workstation, be convenient for this electrochemical workstation tests the battery under higher or lower ambient temperature.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

FIG. 1 is a schematic structural view of a test extension line according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an extended line plug according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an extended line socket according to an embodiment of the present invention.

Description of the reference numerals:

1. testing the lengthened line; 101. a lengthened line plug; 1011. a first connection end; 1012. a second connection end; 102. a extension cord receptacle; 1021. a third connection end; 1022. a fourth connection end;

2. an electrochemical workstation; 201. WE test line; 202. REF1 test line; 203. CE test line; 204. REF3 test line; 205. a REF2 test line; 206. testing the plug;

3. a crocodile clip; 4. a battery.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection may be fixed, detachable, or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The embodiment relates to a test wire assembly for an electrochemical workstation, which comprises test wires respectively connected with a working electrode, an auxiliary electrode and a reference electrode in the electrochemical workstation 2 and test extension wires 1 respectively detachably connected with the test wires, wherein the test extension wires 1 are coated with high-temperature-resistant insulating layers.

Based on the above general description, as a preferred embodiment, in this embodiment, the high temperature-resistant insulating layer is made of a silicon rubber material, and since the silicon rubber has excellent high temperature resistance and low temperature resistance, the operating temperature range of the test extension line 1 can be increased, so as to facilitate the test of the battery 4 at higher or lower ambient temperature. And the conducting wire in the test lengthened line 1 is made of copper material so as to have better conductivity.

In addition, for the detachable connection between the test line and the test extension line 1 of being convenient for realize to the convenience is carried out dismouting and change to test extension line 1, as preferred, in this embodiment, the grafting is continuous between test extension line 1 and the test line.

In specific implementation, the testing extension line 1 includes an extension line body, and an extension line plug 101 and an extension line socket 102 respectively disposed at two ends of the extension line body, and the extension line socket 102 is adapted to and connected to the testing plug 206 on the testing line. In specific implementation, the extended line plug 101 and the test plug 206 may be banana plugs, and the extended line socket 102 may be a banana socket. The extended line plug 101 may be configured as shown in fig. 2, and includes a first connection end 1011 to be connected to a test clip described below, and a second connection end 1012 to be connected to an extended test line. The extension line socket 102 may be configured as shown in fig. 3, and includes a third connection end 1021 for connecting with the extension test line, and a fourth connection end 1022 for connecting with the test line. It should be noted that, the structures of the banana plug and the banana jack in the present embodiment can be designed with reference to the structures of the banana plug and the banana jack commonly used in the prior art, and the fourth connection terminal 1022 of the extension line jack 102 is matched with the banana plug on the test line during the design.

In addition, in order to realize the test of the battery 4, the banana plug and the banana socket in the embodiment are made of copper materials. Of course, it should be noted that, the above-mentioned connection between the test extension cord 1 and the test cord, the banana plug used for the extension cord plug 101 and the test plug 206, and the banana plug used for the extension cord socket 102 are only preferred embodiments, and in addition, other connection methods, such as twisting and connection, pressing connection, etc., may also be used between the test extension cord 1 and the test cord.

To facilitate testing of the connection between the extension cord 1 and the tabs of the battery 4, the extension cord plug 101 of the present embodiment is preferably used in connection with a test clip. The test clip is provided with a clamping part and an inserting part connected with the clamping part, the lengthened line plug 101 is inserted in the inserting part, and the clamping part is used for clamping the pole ear of the battery 4, so that the connection between the test lengthened line 1 and the pole ear of the battery 4 is realized. In addition, the test clip in this embodiment can adopt the alligator clip 3 commonly used in the prior art, and foretell clamping part can be the position that alligator clip 3 carries out the centre gripping to the utmost point piece, and foretell grafting part can be the interface that supplies test extension line 1 grafting of seting up on the alligator.

The test wire assembly for electrochemical workstation of the present embodiment is connectable to existing electrochemical workstation 2 of each model, and here, it is described by way of example that it is connected to electrochemical workstation 2 of the model of bieorogen (Bio-Logic) VMP 3:

as shown in fig. 3, the test extension line 1 in this embodiment may be connected to the CE test line 203, the WE test line 201, the REF1 test line 202, the REF2 test line 205, and the REF3 test line 204 of the electrochemical workstation 2, where the WE test line 201 and the CE test line 203 are current lines and connected to the positive electrode tab and the negative electrode tab of the battery 4, respectively, to collect current in the test process, the REF1 and the REF3 are voltage lines and connected to the positive electrode tab and the negative electrode tab of the battery 4, respectively, to collect voltage in the test process, and the REF2 is a reference line and connected to the reference electrode of the electrochemical workstation 2.

Since the test plugs 206 of the CE, WE, REF1, REF2, and REF3 test lines 204 are 2mm and 4mm banana plugs, respectively, in order to adapt to the size of each test plug 206, the 2mm and 4mm banana plugs can be selected for the extension line socket 102, respectively, so as to adapt to the test plugs 206 of each test line.

The test wire assembly for electrochemical workstation of this embodiment, through can dismantling to be connected with test extension line 1 on each test wire, can prolong the length of test wire, be convenient for test different grade type and unidimensional battery 4, and reduce the utmost point ear of participating in the test and receive the stress of test wire and drag at the in-process of test, prevent that utmost point ear is not hard up or the fracture, through including high temperature insulation layer on test extension line 1, can widen the operating temperature scope of test extension line 1, be convenient for test battery 4 under the higher or lower ambient temperature.

Example two

The present embodiment relates to an electrochemical workstation, in which a test line assembly for an electrochemical workstation as described in the first embodiment is disposed.

The electrochemical workstation of this embodiment, through being equipped with foretell test wire assembly for electrochemical workstation, be convenient for realize that this electrochemical workstation tests battery 4 of different models, not unidimensional, and be convenient for make widen the operating temperature range of this electrochemical workstation, be convenient for this electrochemical workstation to test the battery under higher or lower ambient temperature.

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

Claims

1. A test line subassembly for electrochemistry workstation which characterized in that:

the test device comprises test wires respectively connected with a working electrode, an auxiliary electrode and a reference electrode in an electrochemical workstation (2), and test extension wires (1) detachably connected with the test wires, wherein each test extension wire (1) is coated with a high-temperature-resistant insulating layer.

2. The test line assembly for an electrochemical workstation of claim 1, wherein:

the high-temperature-resistant insulating layer is made of a silicon rubber material.

3. The test line assembly for an electrochemical workstation of claim 1, wherein:

the test lengthening line (1) is connected with the test line in an inserted manner.

4. The test line assembly for electrochemical workstations in claim 3, wherein:

the test extension line (1) comprises an extension line body, an extension line plug (101) and an extension line socket (102) which are arranged at two ends of the extension line body in a split mode, and the extension line socket (102) is matched and connected with a test plug (206) on the test line in an inserting mode.

5. The test line assembly for electrochemical workstations according to claim 4, wherein:

the extension line plug (101) and/or the test plug (206) is a banana plug, and the extension line socket (102) is a banana socket.

6. The test line assembly for electrochemical workstations as in claim 5, wherein:

the banana plug and/or the banana socket are made of copper materials.

7. The test line assembly for electrochemical workstations according to claim 4, wherein:

the lengthened line plug (101) is used for being connected with the test clip;

the test clip is provided with a clamping part and an inserting part connected with the clamping part, and the lengthened line plug (101) is inserted into the inserting part.

8. The test line assembly for electrochemical workstations as in claim 7, wherein:

the test clip adopts an alligator clip (3).

9. The test line assembly for electrochemical workstations according to any of claims 1 to 8, wherein:

the lead in the test lengthened line (1) is made of copper.

10. An electrochemical workstation, characterized by:

the electrochemical workstation is provided with the test wire assembly for an electrochemical workstation according to any one of claims 1 to 9.