CN218099517U - Edge voltage testing equipment for soft package lithium ion battery - Google Patents

Abstract

The utility model belongs to the technical field of the battery detects, specifically provide a limit voltage test equipment for soft packet of lithium ion battery. The problem that the existing edge voltage detection equipment for the soft package lithium ion battery is poor in structure setting mode is solved. Therefore, the utility model discloses an edge voltage test equipment includes battery fixing device, edge voltage detection instrument, battery negative pole side testing arrangement and battery positive side testing arrangement, and edge voltage detection instrument includes first test terminal A, second test terminal A and third test terminal B, and battery negative pole side testing arrangement includes first test component, and battery positive side testing arrangement includes second test component and third test component, the utility model discloses a portable setting of first test component, second test component and third test component can insert to test circuit fast accurately in order to guarantee the battery that awaits measuring, punctures detection and non-puncture detection with effective compatibility as second test component through setting up interchangeable contact piece and bayonet.

Description

Edge voltage testing equipment for soft package lithium ion battery

Technical Field

The utility model belongs to the technical field of the battery detects, specifically provide a limit voltage test equipment for soft packet of lithium ion battery.

Background

With the continuous development of the electric automobile industry, soft package lithium ion batteries are also increasingly applied. In the processes of production, manufacturing and test use of the soft package lithium ion battery, whether the aluminum plastic film package is intact is a necessary process, and the quick and accurate aluminum plastic film package detection is also an important guarantee for production line capacity release and product quality detection. In general, conventional methods for inspecting an aluminum plastic film package of a soft package lithium ion battery include physical means such as thickness detection, appearance quality detection, and peeling force detection, and electrical detection methods such as high voltage overcurrent detection, and among the multiple detection processes, edge voltage detection (i.e., high voltage overcurrent detection) is one of important measurement processes that must be performed after packaging and before shipment. Specifically, when the soft package lithium ion battery is subjected to the edge voltage detection, the soft package lithium ion battery generally needs to be detected in two situations, namely a punctured state and a non-punctured state, however, the existing aluminum plastic film packaging detection of the soft package lithium ion battery has the problem that the punctured detection (destructive) and the non-punctured detection (integrity) are incompatible, the different detection processes also need to be subjected to the model change of a detection mechanism, and the problems of missed detection, false detection and the like are caused by poor contact of a test loop due to the contact problem in the non-punctured detection.

Accordingly, there is a need in the art for a new edge voltage testing device for soft pack lithium ion batteries that addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned technical problem, promptly, the structure of solving the equipment of the soft packet of lithium ion battery's of current detection limit voltage sets up the mode not good and leads to pricking detection and non-to prick the detection and can't go on and lead to missing the problem of examining the false retrieval because of contact failure easily in the testing process through same check out test set.

The utility model provides a limit voltage test equipment for soft packet of lithium ion battery, limit voltage test equipment includes battery fixing device, limit voltage detection instrument, battery negative pole side testing arrangement and the anodal side testing arrangement of battery, battery fixing device is used for the fixed battery that awaits measuring, limit voltage detection instrument includes first test terminal A, second test terminal A and third test terminal B, battery negative pole side testing arrangement includes first test component, first test component with first test terminal A links to each other, and first test component sets up to make the battery that awaits measuring with the aluminium-plastic membrane banding joint of the battery negative pole side that awaits measuring with mobilizable mode selectivity, battery anodal side testing arrangement includes second test component and third test component, the second test component with second test terminal A links to each other, and the second test component sets up to make the battery that awaits measuring with the aluminium-plastic membrane banding joint of the anodal side of the battery that awaits measuring with make the battery that awaits measuring with second test terminal A, the third test component with the third test terminal B links to each other with mobilizable mode sets up to make the battery that awaits measuring handle as mobilizable contact with the test component, wherein the contact with mobilizable mode selectivity.

In a preferred technical solution of the above-mentioned edge voltage testing apparatus, the battery positive electrode side testing device further includes an installation base and an edge sealing contact cylinder connected to the installation base, and a driving rod of the edge sealing contact cylinder is connected to the second testing member to drive the second testing member to move in a first horizontal direction.

In the preferable technical scheme of the above-mentioned limit voltage testing equipment, the battery positive pole side testing arrangement is still including setting up horizontal migration subassembly on the installation base, the cylinder body of banding contact cylinder passes through horizontal migration subassembly with the installation base links to each other in order to drive banding contact cylinder drives the second test component removes along the second horizontal direction, and the second horizontal direction is perpendicular with first horizontal direction.

In a preferred embodiment of the above-mentioned side voltage testing device, the battery positive electrode side testing device further includes a finger cylinder provided on the mounting base, and the third testing member is provided on a driving arm of the finger cylinder.

In a preferred embodiment of the above-mentioned edge voltage testing apparatus, the third testing member is a spring probe.

In a preferred embodiment of the above-mentioned edge voltage testing apparatus, the battery positive electrode side testing device further includes a fixing base, and the mounting base is movably disposed on the fixing base.

In a preferred embodiment of the above-mentioned edge voltage testing device, the battery positive electrode side testing apparatus further includes a driving member, and the driving member is configured to drive the mounting base to move relative to the fixing base.

In a preferred technical solution of the above-mentioned side voltage testing device, the battery negative electrode side testing device includes a negative electrode fixing support and a negative electrode horizontal movement cylinder disposed on the negative electrode fixing support, and a driving rod of the negative electrode horizontal movement cylinder is connected to the first testing member to drive the first testing member to move along a first horizontal direction.

In an optimal technical scheme of the edge voltage testing equipment, the battery negative electrode side testing device further comprises a negative electrode vertical moving cylinder arranged on the negative electrode fixing support, and a driving rod of the negative electrode vertical moving cylinder is connected with a cylinder body of the negative electrode horizontal moving cylinder to drive the first testing member to move along the vertical direction.

In the preferable technical scheme of the above-mentioned limit voltage test equipment, the battery fixing device includes a battery fixing support and a vacuum adsorption member arranged on the battery fixing support, and the vacuum adsorption member can be adsorbed to the battery to be tested.

Under the condition of adopting the technical scheme, the utility model effectively ensures that the battery to be tested can be quickly and accurately connected into the test loop through the movable arrangement of the first test component, the second test component and the third test component, thereby effectively avoiding the problem that the test result is influenced by the poor contact between the existing test loop and the battery to be tested, and further effectively ensuring the detection efficiency and the accuracy of the detection result; and, the utility model discloses still through setting up interchangeable contact piece and bayonet as second test component to effectively solve the problem that current limit voltage test can't be compatible to puncture detection and non-puncture detection, so that further promote detection efficiency, can also effectively avoid the test value to receive the problem of more irrelevant factor interference and distortion easily.

Based on the setting, the utility model discloses a limit voltage test equipment not only can effectively compatible puncture detection and non-puncture detection, can also effectively guarantee the detection efficiency and the detection accuracy that non-puncture detected, promotes the first contact success rate, and then effectively satisfies the limit voltage detection of automation, low-cost, high accuracy.

Drawings

Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of the overall structure of the edge voltage testing apparatus of the present invention;

FIG. 2 is a schematic view of the connection relationship between the edge voltage detecting devices of the present invention;

fig. 3 is a schematic view of a first partial structure of the side voltage testing apparatus of the present invention, in which a battery positive electrode side testing device is shown;

fig. 4 is a second partial structure diagram of the side voltage testing apparatus of the present invention, in which the battery negative side testing device is shown;

reference numerals are as follows:

11. a battery fixing device; 111. a battery fixing bracket;

12. a battery negative side test device; 121. a first test member; 122. a negative electrode fixing bracket; 123. a negative electrode horizontal movement cylinder; 124. a negative electrode vertical moving cylinder;

13. a battery positive side testing device; 131. a second test member; 132. a third test member; 133. installing a base; 134. a fixed base; 135. a driving cylinder; 136. a slide rail; 137. sealing edges to contact the cylinder; 138. a horizontal movement assembly; 139. a finger cylinder;

14. an edge voltage detection instrument; 141. a first test terminal A; 142. a second test terminal A; 143. a third test terminal B;

101. and (5) a battery to be tested.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications. For example, the utility model discloses do not make any restriction to the soft packet of lithium ion battery's that awaits measuring concrete structure, field technical personnel can set for the testing object by oneself according to the in-service use demand.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" is to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring first to fig. 1 and 2, as shown in fig. 1 and 2, the side voltage testing apparatus of the present invention includes a battery fixing device 11, a battery negative electrode side testing device 12, a battery positive electrode side testing device 13 and a side voltage detecting instrument 14, the battery fixing device 11 is used for fixing a battery 101 to be tested, the side voltage detecting instrument 14 includes a first testing terminal a141, a second testing terminal a142 and a third testing terminal B143, the battery negative electrode side testing device 12 includes a first testing member 121, the first testing member 121 is connected to the first testing terminal a141, and the first testing member 121 is configured to be selectively engageable with an aluminum plastic film edge sealing of a negative electrode side of the battery 101 to be tested in a movable manner so that the battery 101 to be tested is conducted with the first testing terminal a141, the battery positive electrode side testing device 13 includes a second testing member 131 and a third testing member 132, the second testing member 131 is connected to the second testing terminal a142, and the second testing member 131 is configured to be selectively engageable with an aluminum plastic film edge sealing of a positive electrode side of the battery 101 to be tested in a movable manner so that the battery 101 to be tested is conducted with the third testing terminal a 143, and the third testing member 132 are configured to be contacted with a movable testing member 143, and a testing handle to be selectively engageable with a testing member 143.

Continuing to refer to fig. 1, as shown in fig. 1, battery fixing device 11 in the present embodiment is used for fixing battery 101 to be tested, in this embodiment, battery fixing device 11 includes battery fixed bolster 111 and the vacuum adsorption component (not shown in the figure) of setting on battery fixed bolster, battery fixed bolster 111 includes square plate structure and sets up the stabilizer blade structure on four angles of square plate structure, four stabilizer blade structures are used for supporting square plate structure, square plate structure is used for bearing battery 101 to be tested in order to form test platform, the vacuum adsorption component includes a plurality of vacuum chuck and the vacuum system who links to each other with a plurality of vacuum chuck, a plurality of vacuum chuck set up on square plate structure, when battery 101 to be tested is placed on square plate structure with the gesture of lying, a plurality of vacuum chuck can adsorb to the lower surface of battery 101 to be tested, after vacuum system opened the evacuation function, the vacuum adsorption component just can fix battery 101 to be tested on square plate structure through the negative pressure that a plurality of vacuum chuck provided. It should be noted that, the present invention does not limit the specific structure of the battery fixing device 11, as long as the battery fixing device 11 can play the role of fixing the battery 101 to be tested, and the skilled person can set itself according to the actual use requirement.

Continuing to refer to fig. 2, as shown in fig. 2, the utility model discloses a limit voltage detection instrument 14 includes first test terminal A141, second test terminal A142 and third test terminal B143, first test terminal A141 links to each other with first test component 121, second test terminal A142 links to each other with second test component 131, third test terminal B143 links to each other with third test component 132, first test terminal A141 and second test terminal A142 communicate through four contacts of first test component 121 and second test component 131 with the plastic-aluminum membrane banding of the battery 101 that awaits measuring, and then realize the plastic-aluminum membrane banding of the battery 101 that awaits measuring and the intercommunication of terminal A of limit voltage detection instrument 14, third test terminal B143 communicates through the electrically conductive handle of third test component 132 with the positive pole of the battery 101 that awaits measuring, and then realize the intercommunication of the positive ear of the battery 101 that awaits measuring and the terminal B of limit voltage detection instrument 14, realize the intercommunication of voltage test circuit on the basis, limit voltage detection instrument 14 can gather the voltage data acquisition of the battery 101 that awaits measuring through electric work promptly. It should be noted that, the present invention does not make any limitation on the specific type of the side voltage detecting instrument 14, as long as the side voltage detecting instrument 14 can detect the voltage of the battery 101 to be tested through the first testing terminal a141, the second testing terminal a142 and the third testing terminal B143, and the skilled person in the art can set the voltage by himself according to the actual use requirement.

Referring to fig. 3, the battery positive electrode side testing device 13 includes a mounting base 133 and a fixing base 134, the fixing base 134 is fixedly disposed, the mounting base 133 is movably disposed on the fixing base 134, and other detecting components of the battery positive electrode side testing device 13 are disposed on the mounting base 133; it should be noted that, the present invention does not limit the specific structures and connection manners of the mounting base 133 and the fixing base 134, and those skilled in the art can set the specific structures and connection manners according to actual needs. As a preferable setting mode, a driving cylinder 135 is further arranged on the fixed base 134, a cylinder body of the driving cylinder 135 is connected with the fixed base 134, the mounting base 133 is movably connected with the fixed base 134 through a sliding rail 136 arranged on two sides, a driving rod of the driving cylinder 135 is connected with the mounting base 133, and when the driving cylinder 135 is driven, the mounting base 133 can be driven to slide along the length direction of the sliding rail 136 relative to the fixed base 134. It should be noted that, this driving movement manner is not limited, and the driving may also be realized by driving a belt through a motor, as long as the driving member can drive the mounting base 133 to move relative to the fixed base 134, and a person skilled in the art can set the driving manner according to actual use requirements.

Further, the battery positive electrode side testing device 13 further includes two edge sealing contact cylinders 137 connected to the mounting base 133, the two edge sealing contact cylinders 137 are respectively disposed on two sides of the mounting base 133, driving rods of the two edge sealing contact cylinders 137 are respectively connected to the two second testing members 131, the two second testing members 131 are respectively connected to the two second testing terminals a142 to drive the second testing members 131 to move along a first horizontal direction, and the first horizontal direction is a length direction of the battery 101 to be tested when the battery is placed in place. Of course, a person skilled in the art can set the specific type and arrangement of the edge banding contact cylinder 137 according to the actual use requirement, as long as the second testing member 131 can be driven to move along the first horizontal direction. The second testing member 131 is a replaceable contact block and a bayonet, in the process of detecting voltage, an operator can select the contact block or the bayonet to be installed on the driving rod of the edge sealing contact cylinder 137 according to actual detection requirements, non-puncture detection can be performed when the contact block is installed as the second testing member 131, and puncture detection can be performed when the bayonet is installed as the second testing member 131. The contact block is preferably made of insulating plastic materials, and the surface of the contact block is provided with a softened conductive layer which is connected with the second test terminal A142 through a lead; the bayonet is used for puncturing the insulating protective layer on the edge sealing surface layer of the aluminum-plastic film so as to contact the composite aluminum layer in the middle, so that puncturing detection can be conveniently carried out, is preferably made of a metal material, and is directly connected with the second test terminal A142 through a lead. It should be noted that the above-mentioned arrangement is a preferred arrangement, but the present invention is not limited thereto, and those skilled in the art can set the specific structures of the contact block and the bayonet according to the actual use requirement, as long as the conduction of the test circuit can be realized.

Further, the battery positive electrode side testing device 13 further includes a horizontal moving assembly 138 disposed on the mounting base 133, and a cylinder of the edge sealing contact cylinder 137 is connected to the mounting base 133 through the horizontal moving assembly 138 to drive the edge sealing contact cylinder 137 to drive the second testing member 131 to move along a second horizontal direction, which is perpendicular to the first horizontal direction. It should be noted that the present invention does not limit the specific structure of the horizontal moving assembly 138, as long as the horizontal moving assembly 138 can drive the sealing edge contact cylinder 137 to drive the second testing member 131 to move along the second horizontal direction, and the skilled person can set itself according to the actual use requirement. As a preferable setting mode, the horizontal moving assembly 138 includes a servo motor, a coupler, a screw rod, a fixing block and a slide rail structure, the cylinder body of the sealing edge contact cylinder 137 is connected with the mounting base 133 through the slide rail structure to realize slidable connection, the servo motor is fixed on the mounting base 133, and the servo motor is connected with the screw rod through the coupler to drive the screw rod to rotate, the screw rod is connected to the fixing block in a relatively rotatable manner, the fixing block is fixedly connected with the sliding part of the slide rail structure, so that the servo motor can drive the sealing edge contact cylinder 137 to drive the second testing member 131 to move along the second horizontal direction, and further, the adjustment of the contact position is realized. Because the servo motor can conveniently realize the adjustment of the position and the contact speed of the edge sealing contact cylinder 137 in the second horizontal direction, the shape of a part to be tested can be better fitted through the driving setting of the edge sealing contact cylinder 137 and the design of the copying soft rubber of the contact block or the bayonet, better physical contact is realized, the impedance of a conduction point is reduced, and the conduction and the separation of a test terminal A of the edge voltage detection instrument 14 are better realized.

In addition, the battery positive side testing device 13 further includes a finger cylinder 139 disposed on the mounting base 133, and the third testing member 132 is disposed on a driving arm of the finger cylinder 139, thereby constituting a positive ear probe mechanism to be engaged with the positive ear of the battery 101 to be tested. As a preferable arrangement mode, the third testing member 132 is a spring probe, the spring probe is arranged on a driving arm of the finger cylinder 139 to achieve a clamping function, and the driving arm is further provided with an insulation limiting block to assist in limiting, a cylinder body of the finger cylinder 139 is fixed on the mounting base 133 through a support structure, the finger cylinder 139 achieves position adjustment through movement of the mounting base 133, when the finger cylinder 139 moves in place through the mounting base 133, the driving arm of the finger cylinder 139 is closed, and the telescopic spring probe contacts a positive electrode conductive handle of the battery 101 to be tested to achieve conduction of the testing terminal B of the side voltage detecting instrument 14; after the test is finished, the driving arm of the finger cylinder 139 is opened, the spring probe is disengaged from the positive electrode conductive handle of the battery 101 to be tested, and the test terminal B of the side voltage detection instrument 14 is disengaged. It should be noted that, the specific type and the setting manner of the finger cylinder 139 are not limited, as long as the above functions can be realized, and those skilled in the art can set the setting according to the actual use requirement.

Referring to fig. 4, as shown in fig. 4, the battery negative electrode side testing device 12 further includes a negative electrode fixing bracket 122, and a negative electrode horizontal moving cylinder 123 and a negative electrode vertical moving cylinder 124 which are disposed on the negative electrode fixing bracket 122, wherein a driving rod of the negative electrode horizontal moving cylinder 123 is connected to the first testing member 121 to drive the first testing member 121 to move along the first horizontal direction, so as to drive the first testing member 121 to contact with or separate from the aluminum-plastic film sealing edge of the battery 101 to be tested, thereby achieving conduction and separation between the aluminum-plastic film sealing edge of the battery 101 to be tested and the testing terminal a of the edge voltage detecting instrument 14, and a driving rod of the negative electrode vertical moving cylinder 124 is connected to a cylinder body of the negative electrode horizontal moving cylinder 123 to drive the first testing member 121 to move along the vertical direction, thereby driving the first testing member 121 and the battery 101 to be tested to be at the same testing height to ensure the connection effect. It should be noted that the present invention does not limit the specific types and setting manners of the negative electrode horizontal moving cylinder 123 and the negative electrode vertical moving cylinder 124, as long as the first testing member 121 can be driven to move along the first horizontal direction and the vertical direction. As a preferable arrangement of the first test member 121, the first test member 121 has a main body made of an insulating plastic material as a test block, and has a surface provided with a softened conductive layer connected to the first test terminal a141 through a wire.

Based on the structure, when the soft package lithium ion battery is subjected to the edge voltage test, the test process is as follows: a. firstly, placing a battery 101 to be tested on a battery fixing bracket 111 in a lying posture; b. the vacuum adsorption member of the battery fixing device 11 is adsorbed to the lower surface of the battery 101 to be tested, so that the battery 101 to be tested is fixed; c. the cathode horizontal moving cylinder 123 and the cathode vertical moving cylinder 124 are adjusted to drive the first testing member 121 to be in edge sealing contact with the aluminum-plastic film on the cathode side of the battery 101 to be tested, so that the aluminum-plastic film edge sealing on the cathode side of the battery 101 to be tested is conducted with the testing terminal A of the side voltage detecting instrument 14 through the first testing member 121; d. the driving cylinder 135 is adjusted to enable the finger cylinder 139 to move in place, the driving arm of the finger cylinder 139 is controlled to be closed, and the telescopic spring probe contacts the positive electrode conductive handle of the battery 101 to be tested, so that the positive electrode tab of the battery 101 to be tested is conducted with the testing terminal B of the side voltage testing instrument 14 through the third testing component 132; e. the edge sealing contact cylinder 137 and the horizontal moving assembly 138 are adjusted to enable the second testing component 131 to move in place and to be in edge sealing contact with the aluminum-plastic film on the positive side of the battery 101 to be tested, so that the aluminum-plastic film edge sealing of the positive side of the battery 101 to be tested is conducted with the testing terminal A of the side voltage detecting instrument 14 through the second testing component 131; f. when the test terminals a and B of the side voltage detecting instrument 14 are both connected with the battery 101 to be tested, the side voltage detecting instrument 14 is controlled to be powered on to collect voltage data of the battery 101 to be tested, and then insulation detection of aluminum plastic film packaging of the battery 101 to be tested is completed.

In addition, it should be noted that, the present invention does not limit the specific application method of the edge voltage testing device, and those skilled in the art can set the application method according to actual application requirements.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. An edge voltage testing device for a soft package lithium ion battery is characterized by comprising a battery fixing device, an edge voltage detecting instrument, a battery cathode side testing device and a battery anode side testing device,

the battery fixing device is used for fixing a battery to be tested,

the side voltage detection instrument comprises a first test terminal A, a second test terminal A and a third test terminal B,

the testing device for the negative electrode side of the battery comprises a first testing component which is connected with the first testing terminal A and is arranged to be selectively jointed with an aluminum plastic film edge sealing side of the negative electrode side of the battery to be tested in a movable mode so as to enable the battery to be tested to be conducted with the first testing terminal A,

the battery positive side testing device comprises a second testing component and a third testing component, wherein the second testing component is connected with the second testing terminal A, the second testing component is movably and selectively jointed with an aluminum plastic film edge sealing edge of the positive side of a battery to be tested so that the battery to be tested is conducted with the second testing terminal A, the third testing component is connected with the third testing terminal B, the third testing component is movably and selectively jointed with a positive conductive handle of the battery to be tested so that the battery to be tested is conducted with the third testing terminal B, and the second testing component is a replaceable contact block and a bayonet.

2. The apparatus of claim 1, wherein the battery positive side testing device further comprises a mounting base and an edge banding contact cylinder coupled to the mounting base, wherein a drive rod of the edge banding contact cylinder is coupled to the second testing member to drive the second testing member to move in the first horizontal direction.

3. The side voltage testing device of claim 2, wherein the battery positive side testing device further comprises a horizontal moving assembly disposed on the mounting base, and a cylinder body of the edge sealing contact cylinder is connected to the mounting base through the horizontal moving assembly to drive the edge sealing contact cylinder to drive the second testing member to move along a second horizontal direction, which is perpendicular to the first horizontal direction.

4. The side voltage testing apparatus of claim 2, wherein said battery positive side testing device further comprises a finger cylinder provided on said mounting base, said third testing member being provided on a driving arm of said finger cylinder.

5. A side voltage test apparatus according to claim 4, wherein the third test member is a spring probe.

6. A side voltage testing apparatus according to claim 2, wherein said battery positive side testing device further comprises a fixed base, said mounting base being movably disposed on said fixed base.

7. A side voltage testing apparatus according to claim 6, wherein said battery positive side testing device further comprises a driving member arranged to drive said mounting base to move relative to said fixed base.

8. The side voltage testing apparatus according to any one of claims 1 to 7, wherein the battery negative electrode side testing device includes a negative electrode fixing bracket and a negative electrode horizontal movement cylinder provided on the negative electrode fixing bracket, and a driving rod of the negative electrode horizontal movement cylinder is connected to the first testing member to drive the first testing member to move in a first horizontal direction.

9. The side voltage testing device of claim 8, wherein the testing device at the negative electrode side of the battery further comprises a negative electrode vertical moving cylinder disposed on the negative electrode fixing bracket, and a driving rod of the negative electrode vertical moving cylinder is connected with a cylinder body of the negative electrode horizontal moving cylinder to drive the first testing member to move in the vertical direction.

10. The side voltage test apparatus according to any one of claims 1 to 7, wherein the battery fixing device comprises a battery fixing bracket and a vacuum absorption member disposed on the battery fixing bracket, and the vacuum absorption member can be absorbed on the battery to be tested.

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