CN221148877U - Device for testing performance of all-solid-state battery - Google Patents

Abstract

The utility model discloses a device for testing the performance of an all-solid-state battery, which relates to the technical field of solid-state battery puncture detection and particularly comprises a detection table, wherein supporting legs are arranged at four corners of the bottom of the detection table, an L-shaped support frame is vertically arranged at one side of the top of the detection table, the top of the L-shaped support frame is transversely arranged above the detection table, a first strip-shaped seat is horizontally arranged at the tail end of the top of the L-shaped support frame, second connecting seats are vertically arranged at the two ends of the top of the first strip-shaped seat, the two second connecting seats are connected through two guide shafts, a movable seat is arranged on the guide shafts in a sliding penetrating manner, one side of the movable seat far away from the L-shaped support frame is horizontally connected with the second strip-shaped seat, a lifting hydraulic cylinder which is vertically downwards arranged is arranged at the tail end of the second strip-shaped seat, and a puncture needle is coaxially arranged at the bottom of the lifting hydraulic cylinder. When the battery puncture needle is used, the puncture needle can perform multiple puncture experiments on the battery, and the condition of the battery after multiple puncture can be detected.

Description

Device for testing performance of all-solid-state battery

Technical Field

The utility model relates to the technical field of solid-state battery puncture detection, in particular to a device for testing the performance of an all-solid-state battery.

Background

The solid-state battery has a higher energy density and a more stable structure than a lithium ion battery using a liquid electrolyte solution, and is less prone to ignition, so the solid-state battery is more stable than a lithium battery, and thus the test of the solid-state battery is more severe.

The battery is required to perform various severe tests such as anti-aging, long-term saturated charging and puncture tests, etc., before it is set. For the needling experiments, according to the needling test method in national standards, the battery needs to be fully charged, the battery is pierced by a tungsten steel needle perpendicular to the battery, the steel needle stays in the battery, the condition is calculated after a certain time is observed, no fire or explosion is generated, and the needling test is recognized as the most severe and difficult to achieve safety test item.

The traditional battery puncture experiment device can only realize straight line up-and-down motion, so that only one hole can be penetrated in the experiment process, and the battery can not be moved for multiple punctures.

Disclosure of utility model

To solve the above deficiencies of the prior art, the present utility model proposes a device for performance testing of an all-solid-state battery.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the device for testing the performance of the all-solid-state battery comprises a detection table, supporting legs are arranged at four corners of the bottom of the detection table, an L-shaped supporting frame is vertically arranged on one side of the top of the detection table, the top of the L-shaped supporting frame is transversely arranged above the detection table, a first strip-shaped seat is horizontally arranged at the tail end of the top of the L-shaped supporting frame, second connecting seats are vertically arranged at two ends of the top of the first strip-shaped seat, the two second connecting seats are connected through two guide shafts, a movable seat is arranged on the guide shafts in a sliding penetrating manner, one side of the movable seat, far away from the L-shaped supporting frame, is horizontally connected with a second strip-shaped seat, a lifting hydraulic cylinder which is vertically downwards arranged is arranged at the tail end of the second strip-shaped seat, and a puncture needle is coaxially arranged at the bottom of the lifting hydraulic cylinder;

One side of the movable seat, which is far away from the second strip-shaped seat, is connected with a left-right adjusting hydraulic cylinder through a first connecting seat, the left-right adjusting hydraulic cylinder and the guide shaft are arranged in parallel, and the tail end of the left-right adjusting hydraulic cylinder is arranged on the second connecting seat;

A placement seat is arranged below the pricker, a solid-state battery placement groove is formed in the top of the placement seat, a second strip-shaped opening is formed in the bottom of the solid-state battery placement groove, and the shape of the solid-state battery placement groove is matched with that of the solid-state battery;

the anti-explosion device comprises an L-shaped supporting frame, and is characterized by further comprising an anti-explosion box covered on the L-shaped supporting frame, wherein the anti-explosion box is fixed between the anti-explosion box and the detecting table, one side of the anti-explosion box is hinged with an anti-explosion door, the other side of the anti-explosion box is connected with the anti-explosion door through a lock catch, and transparent anti-explosion glass is arranged on both sides of the anti-explosion box and in the middle of the anti-explosion door;

the bottom of the detection table is provided with a control cabinet, a controller and a small hydraulic station are arranged in the control cabinet, the controller and the small hydraulic station are correspondingly connected, and the small hydraulic station is connected with the lifting hydraulic cylinder and the left-right adjusting hydraulic cylinder through oil pipes.

Preferably, the placement seat is arranged on the rectangular plate, and the second strip-shaped opening penetrates through the bottom of the rectangular plate;

The rectangular box is covered above the rectangular plate, four corners of the rectangular box are connected with the rectangular plate through bolts, a rectangular opening is formed in the top of the rectangular box, the rectangular opening is sealed through a transparent plate, and a first strip-shaped opening corresponding to the second strip-shaped opening is formed in the transparent plate;

The two sides of the rectangular box are provided with perforations, the perforated positions are provided with supporting columns, the supporting columns and the placing seats are correspondingly arranged, pressure sensors are respectively arranged at one ends of the supporting columns, which are far away from each other, the pressure sensors are respectively coaxially arranged on the clamping hydraulic cylinders, the clamping hydraulic cylinders are respectively arranged on the detection table through the mounting seats, when the clamping hydraulic cylinders extend, the supporting columns can be driven to be placed in the rectangular box and supported at two ends of the solid-state battery to clamp, and anti-skid rubber pads are respectively arranged at the tail ends of the supporting columns;

The pressure sensor is correspondingly connected with the controller, and the clamping hydraulic cylinder is connected with the small hydraulic station through an oil pipe;

Support blocks are mounted at four corners of the bottom of the rectangular plate, and a placing groove for accommodating the support blocks is formed in the detection table.

Preferably, the positive electrode and the negative electrode of the solid-state battery are connected with positive electrode wires in a welding mode, and the positive electrode wires penetrate out from wire holes formed on the side face of the rectangular box;

The terminal is installed at the lateral wall top of explosion-proof case, and the terminal is installed on transparent explosion-proof glass, the free end of positive negative polar line presss from both sides on the terminal through electrically conductive clamp, and the other end of terminal stretches to outside the explosion-proof case and connects on battery performance detector through the wire, battery performance detector passes through the data line and connects the display.

Preferably, a displacement sensor is arranged below the movable seat, and the displacement sensor is connected with the controller.

Preferably, the bottom of the lifting hydraulic cylinder is connected with a mounting head in a threaded manner, and the puncture needle is coaxially arranged at the bottom of the mounting head.

Preferably, the mounting head is provided with a control keyboard, and the control keyboard is connected with the controller.

Compared with the prior art, when the battery puncture needle is used, the puncture needle can move along the first strip-shaped opening, after the first puncture needle is punctured on the battery, the puncture needle can be controlled to be lifted and then moved to the other side of the battery to perform puncture operation again, so that the puncture needle can perform puncture experiments on the battery for multiple times, and the condition of the battery after puncture for multiple times can be detected.

Drawings

Fig. 1 is a schematic diagram of the whole structure of the present utility model.

Fig. 2 is a schematic diagram of the internal structure of the present utility model.

FIG. 3 is a schematic diagram of the internal structure of the present utility model.

Fig. 4 is a schematic view of the structure between the rectangular box and the rectangular plate of the present utility model.

Fig. 5 is a top view of the placement base of the present utility model.

In the figure: 1. a detection table; 2. a battery performance detector; 3. a display; 4. a pressure sensor; 5. an explosion-proof box; 6. binding posts; 7. an explosion door; 8. transparent explosion-proof glass; 9. support legs; 10. clamping a hydraulic cylinder; 11. a mounting base; 12. perforating; 13. a placement groove; 14. a support block; 15. a rectangular plate; 16. a rectangular box; 17. a wire hole; 18. a second bar-shaped seat; 19. a needle; 20. a mounting head; 21. a lifting hydraulic cylinder; 22. a hydraulic cylinder is adjusted left and right; 23. a movable seat; 24. a first connection base; 25. a guide shaft; 26. a second connecting seat; 27. a first bar-shaped seat; 28. an L-shaped supporting frame; 29. a first strip port; 30. abutting the column; 31. a transparent plate; 32. a placement seat; 33. a second strip port; 34. a solid-state battery placement tank; 35. positive and negative lines; 36. a control cabinet; 37. a control keyboard; 38. a displacement sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, the present utility model provides a technical solution: the device for testing the performance of the all-solid-state battery comprises a detection table 1, wherein supporting legs 9 are arranged at four corners of the bottom of the detection table.

As shown in fig. 2, an L-shaped supporting frame 28 is vertically installed on one side of the top of the detection platform 1, the top of the L-shaped supporting frame 28 is horizontally arranged above the detection platform 1, a first bar-shaped seat 27 is horizontally installed at the tail end of the top of the L-shaped supporting frame 28, two ends of the top of the first bar-shaped seat 27 are vertically provided with a second connecting seat 26, the two second connecting seats 26 are connected through two guide shafts 25, a movable seat 23 is arranged on the guide shafts 25 in a sliding penetrating manner, a second bar-shaped seat 18 is horizontally connected to one side of the movable seat 23 far away from the L-shaped supporting frame 28, a lifting hydraulic cylinder 21 which is vertically and downwards arranged is installed at the tail end of the second bar-shaped seat 18, a puncture needle 19 is coaxially installed at the bottom of the lifting hydraulic cylinder 21, and the puncture needle 19 is driven by the lifting hydraulic cylinder 21 to lift up and down, and the solid-state battery is punctured during the descending;

Under the actual application condition, in order to facilitate the replacement of the puncture needle, the bottom of the lifting hydraulic cylinder 21 is in threaded connection with the mounting head 20, and the puncture needle 19 is coaxially arranged at the bottom of the mounting head 20, so that the puncture needle 19 is convenient to replace, and the puncture needle is a tungsten steel needle;

As shown in fig. 3, a side of the movable seat 23 far away from the second bar-shaped seat 18 is connected with a left-right adjusting hydraulic cylinder 22 through a first connecting seat 24, the left-right adjusting hydraulic cylinder 22 and a guide shaft 25 are arranged in parallel, and the tail end of the left-right adjusting hydraulic cylinder 22 is arranged on a second connecting seat 26, so that when the left-right adjusting hydraulic cylinder 22 stretches and contracts, the lifting hydraulic cylinder 21 can be driven to move left and right, and in order to control the left-right moving distance of the lifting hydraulic cylinder 21, a displacement sensor 38 is arranged below the movable seat 23, and the displacement sensor 38 is connected with a controller;

A placement seat 32 is arranged below the pricking pin 19, a solid-state battery placement groove 34 is formed in the top of the placement seat 32, a second strip-shaped opening 33 is formed in the bottom of the solid-state battery placement groove 34, the second strip-shaped opening 33 is positioned right below the pricking pin 19, the shape of the solid-state battery placement groove 34 is matched with that of the solid-state battery, the solid-state battery is directly placed in the solid-state battery placement groove 34, and the pricking pin 19 penetrates through the solid-state battery to directly penetrate into the second strip-shaped opening 33;

The utility model also comprises an explosion-proof box 5 covered on the L-shaped supporting frame 28, the explosion-proof box 5 is fixed with the detection table 1, one side of the explosion-proof box 5 is hinged with an explosion-proof door 7, the other side of the explosion-proof box 5 is connected with the explosion-proof door 7 through a lock catch, transparent explosion-proof glass 8 is arranged on both sides of the explosion-proof box 5 and in the middle of the explosion-proof door 7, so that detection conditions in the explosion-proof box 5, such as whether a battery smokes, burns or generates sparks or not, can be conveniently observed;

As shown in fig. 1, a control cabinet 36 is installed at the bottom of the detection table 1, a controller and a small hydraulic station are installed in the control cabinet 36, the controller is a host computer, a PLC logic controller or a main board, the controller and the small hydraulic station are correspondingly connected, and the small hydraulic station is connected with the lifting hydraulic cylinder 21 and the left-right adjusting hydraulic cylinder 22 through oil pipes.

As shown in fig. 2, the placement base 32 is mounted on the rectangular plate 15, and the second bar-shaped opening 33 penetrates the bottom of the rectangular plate 15;

The rectangular box 16 is covered above the rectangular plate 15, four corners of the rectangular box 16 are connected with the rectangular plate 15 through bolts, and the rectangular plate 15 and the rectangular box 16 are convenient to detach and mount;

A rectangular opening is formed in the top of the rectangular box 16, the rectangular opening is sealed by a transparent plate 31, the transparent plate 31 is made of explosion-proof glass, a first strip-shaped opening 29 corresponding to a second strip-shaped opening 33 is formed in the transparent plate 31, the size of the first strip-shaped opening 29 is larger than that of the second strip-shaped opening 33, the puncture needle 19 is penetrated from the first strip-shaped opening 29 to directly act on a battery, and the condition of the battery can be observed through the transparent plate 31;

As shown in fig. 4 and fig. 2, two sides of the rectangular box 16 are provided with through holes 12, the through holes 12 are provided with supporting columns 30, the supporting columns 30 and the placement seats 32 are correspondingly arranged, one ends of the supporting columns 30, which are far away from each other, are provided with pressure sensors 4, one sides of the pressure sensors 4, which are far away from each other, are coaxially arranged on the clamping hydraulic cylinders 10, the clamping hydraulic cylinders 10 are arranged on the detection table 1 through the mounting seats 11, as shown in fig. 2 and fig. 3, when the clamping hydraulic cylinders 10 are extended, the supporting columns 30 can be driven to be placed in the rectangular box 16 and supported on two ends of the solid batteries for clamping, the ends of the supporting columns 30 are provided with anti-skid rubber pads, and when the solid batteries in the rectangular box 16 are clamped and then punctured, the batteries can be prevented from moving;

The pressure sensor 4 is correspondingly connected with the controller, and the clamping hydraulic cylinder 10 is connected with the small hydraulic station through an oil pipe;

Support blocks 14 are mounted at four corners of the bottom of the rectangular plate 15, and a placing groove 13 for accommodating the support blocks is formed in the detection table 1, so that the rectangular plate 15 can be placed below the pricking needles 19 directly and positioned conveniently.

As shown in fig. 2, the positive and negative poles of the solid-state battery are connected with positive and negative poles 35 by welding, and the positive and negative poles 35 pass through the wire holes 17 formed on the side surface of the rectangular box 16;

The terminal 6 is installed at the lateral wall top of explosion-proof case 5, and terminal 6 is installed on transparent explosion-proof glass 8, the free end of positive negative polar line 35 presss from both sides on terminal 6 through electrically conductive clamp, and the other end of terminal 6 stretches out explosion-proof case 5 and connects on battery performance detector 2 through the wire, battery performance detector 2 passes through data line connection display 3, and battery performance detector 2 can detect battery conditions such as electric current, after the battery is impaled, can detect the data after the battery is impaled through battery performance detector 2.

As shown in fig. 1, the mounting head 20 is provided with a control keyboard 37, the control keyboard 37 is connected with a controller, and the control keyboard 37 comprises buttons for controlling each hydraulic cylinder, so that the control is convenient.

In particular, in use of the present utility model, it is first noted that the lancet 19 does not move laterally beyond the ends of the first strip 29, thereby preventing the lancet from piercing objects other than the first strip 29.

After the first puncture is performed on the battery, the puncture needle 19 can be controlled to be lifted and then moved to the other side of the battery for performing puncture again, so that the puncture needle 19 can perform puncture experiments on the battery for a plurality of times.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a device for all solid-state battery performance test, includes detection platform (1), detects platform bottom four corners and all installs supporting leg (9), its characterized in that: an L-shaped supporting frame (28) is vertically arranged on one side of the top of the detection table (1), the top of the L-shaped supporting frame (28) is horizontally arranged above the detection table (1), a first bar-shaped seat (27) is horizontally arranged at the tail end of the top of the L-shaped supporting frame (28), second connecting seats (26) are vertically arranged at two ends of the top of the first bar-shaped seat (27), the two second connecting seats (26) are connected through two guide shafts (25), a movable seat (23) is arranged on the guide shafts (25) in a sliding penetrating mode, a second bar-shaped seat (18) is horizontally connected to one side, far away from the L-shaped supporting frame (28), of the movable seat (23), a lifting hydraulic cylinder (21) which is vertically downwards arranged is arranged at the tail end of the second bar-shaped seat (18), and a puncture needle (19) is coaxially arranged at the bottom of the lifting hydraulic cylinder (21).

One side of the movable seat (23) far away from the second strip-shaped seat (18) is connected with a left-right adjusting hydraulic cylinder (22) through a first connecting seat (24), the left-right adjusting hydraulic cylinder (22) and a guide shaft (25) are arranged in parallel, and the tail end of the left-right adjusting hydraulic cylinder (22) is arranged on the second connecting seat (26);

a placement seat (32) is arranged below the pricker (19), a solid-state battery placement groove (34) is formed in the top of the placement seat (32), a second strip-shaped opening (33) is formed in the bottom of the solid-state battery placement groove (34), and the shape of the solid-state battery placement groove (34) is matched with that of the solid-state battery;

The anti-explosion device is characterized by further comprising an anti-explosion box (5) covered on the L-shaped supporting frame (28), wherein the anti-explosion box (5) is fixed with the detection table (1), one side of the anti-explosion box (5) is hinged with an anti-explosion door (7), the other side of the anti-explosion box (5) is connected with the anti-explosion door (7) through a lock catch, and transparent anti-explosion glass (8) is arranged on both sides of the anti-explosion box (5) and in the middle of the anti-explosion door (7);

The bottom of the detection table (1) is provided with a control cabinet (36), a controller and a small hydraulic station are arranged in the control cabinet (36), the controller and the small hydraulic station are correspondingly connected, and the small hydraulic station is connected with a lifting hydraulic cylinder (21) and a left-right adjusting hydraulic cylinder (22) through an oil pipe.

2. An apparatus for performance testing of an all-solid-state battery according to claim 1, wherein: the placement seat (32) is arranged on the rectangular plate (15), and the second strip-shaped opening (33) penetrates through the bottom of the rectangular plate (15);

The rectangular box (16) is covered above the rectangular plate (15), four corners of the rectangular box (16) are connected with the rectangular plate (15) through bolts, a rectangular opening is formed in the top of the rectangular box (16), the rectangular opening is sealed through a transparent plate (31), and a first strip-shaped opening (29) corresponding to the second strip-shaped opening (33) is formed in the transparent plate (31);

the two sides of the rectangular box (16) are provided with perforations (12), the perforations (12) are provided with supporting columns (30), the supporting columns (30) and the placing seats (32) are correspondingly arranged, one ends of the supporting columns (30) which are far away from each other are provided with pressure sensors (4), one sides of the pressure sensors (4) which are far away from each other are coaxially arranged on the clamping hydraulic cylinders (10), the clamping hydraulic cylinders (10) are arranged on the detection table (1) through the mounting seats (11), and when the clamping hydraulic cylinders (10) stretch, the supporting columns (30) can be driven to be placed in the rectangular box (16) and supported on two ends of the solid-state batteries to be clamped, and anti-skid rubber pads are arranged at the tail ends of the supporting columns (30);

The pressure sensor (4) is correspondingly connected with the controller, and the clamping hydraulic cylinder (10) is connected with the small hydraulic station through an oil pipe;

Support blocks (14) are mounted at four corners of the bottom of the rectangular plate (15), and a placing groove (13) for accommodating the support blocks is formed in the detection table (1).

3. An apparatus for performance testing of an all-solid-state battery according to claim 1, wherein: the positive electrode and the negative electrode of the solid-state battery are connected with positive electrode wires (35) in a welding mode, and the positive electrode wires (35) penetrate out from wire holes (17) formed on the side face of the rectangular box (16);

The anti-explosion device is characterized in that a binding post (6) is arranged at the top of the side wall of the anti-explosion box (5), the binding post (6) is arranged on transparent anti-explosion glass (8), the free end of the positive electrode wire (35) is clamped on the binding post (6) through a conductive clamp, the other end of the binding post (6) extends out of the anti-explosion box (5) and is connected onto a battery performance detector (2) through a wire, and the battery performance detector (2) is connected with a display (3) through a data wire.

4. An apparatus for performance testing of an all-solid-state battery according to claim 1, wherein: a displacement sensor (38) is arranged below the movable seat (23), and the displacement sensor is connected with the controller.

5. An apparatus for performance testing of an all-solid-state battery according to claim 1, wherein: the bottom of the lifting hydraulic cylinder (21) is connected with a mounting head (20) through threads, and the puncture needle (19) is coaxially mounted at the bottom of the mounting head (20).

6. An apparatus for performance testing of an all-solid-state battery according to claim 5, wherein: the mounting head (20) is provided with a control keyboard (37), and the control keyboard (37) is connected with the controller.