CN110850309A - Lithium ion battery cell liquid absorption capacity testing device - Google Patents
Lithium ion battery cell liquid absorption capacity testing device Download PDFInfo
- Publication number
- CN110850309A CN110850309A CN201911281517.1A CN201911281517A CN110850309A CN 110850309 A CN110850309 A CN 110850309A CN 201911281517 A CN201911281517 A CN 201911281517A CN 110850309 A CN110850309 A CN 110850309A
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- Prior art keywords
- lithium ion
- fixed
- battery cell
- liquid absorption
- absorption capacity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/62—Over or under weighing apparatus
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- General Physics & Mathematics (AREA)
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Abstract
The invention discloses a device for testing the liquid absorption capacity of a lithium ion battery cell, which relates to the technical field of lithium ion batteries and comprises a support frame, wherein a container for containing electrolyte is fixed on the support frame, a clamping mechanism for clamping the battery cell is connected on the connection frame in a lifting way through a secondary lifting mechanism, a sliding plate is arranged on the support frame in a sliding way, and an electronic scale for weighing the battery cell is arranged on the sliding plate; the invention performs primary lifting action on the height position of the connecting frame through the arranged first lifting mechanism. The second grade elevating system who sets up winds or puts the stay cord and establishes, realizes can realizing the meticulous regulation of vertical height by the fixed battery electricity core of fixture centre gripping, guarantees that battery electricity core stretches into the degree of depth regulation of the inside electrolyte of container, guarantees the abundant absorption electrolyte of battery electricity core, and the electronic scale of setting can weigh to the quality around the battery electricity core absorption electrolyte, realizes that battery electricity core imbibition volume is accurate to be detected.
Description
Technical Field
The invention relates to the technical field of lithium ion batteries, in particular to a device for testing the liquid absorption capacity of a lithium ion battery cell.
Background
A lithium ion battery is a type of secondary battery that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; when discharging, the opposite is true, and when detecting the lithium ion battery, the liquid absorption amount of the battery core needs to be detected.
Application publication number CN 108152751A discloses a lithium ion battery cell liquid absorption amount testing device and method, which is characterized in that the detecting device comprises: the device comprises a sealed container base, a sealed container upper cover, a sliding support column, a cross beam, a digital display electronic scale, a chuck, a container, a digital display thermocouple, a heating device, an air vent and a vacuum pressure gauge. Although the device can detect the liquid absorption capacity of the battery electric core, the lifting adjustment operation to the battery electric core in the detection process is not accurate and efficient enough, so that the detection effect of the washing liquid capacity of the battery electric core is poor, and therefore, the device for testing the liquid absorption capacity of the lithium ion battery electric core is provided at present to solve the technical problem.
Disclosure of Invention
The invention aims to provide a device for testing the liquid absorption capacity of a lithium ion battery cell, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a lithium ion battery electricity core liquid absorption capacity testing arrangement, includes the support frame, is fixed with the container that is used for holding electrolyte on the support frame, is connected with the link that is used for hanging to establish battery electricity core through the drive of one-level elevating system on the support frame, is connected with the fixture who is used for centre gripping battery electricity core through the over-and-under type of second grade elevating system on the link, slidable mounting has the sliding plate on the support frame, is equipped with the electronic scale that is used for weighing battery electricity core on the sliding.
As a modified scheme of the invention: the one-level lifting mechanism comprises two coaxially fixed lead screws which are driven by a driving motor and have opposite screw thread turning directions, lead screw sleeve blocks are sleeved on the lead screws in a screw thread mode, and pull rods are hinged between the lead screw sleeve blocks and the connecting frames.
As a modified scheme of the invention: the second-level lifting mechanism comprises two winding rollers which are rotatably arranged on the connecting frame, and a pull rope with the lower end fixed with the clamping mechanism is wound on the winding rollers.
As a modified scheme of the invention: the connecting frame is fixedly provided with a double-shaft motor, two output shafts of the double-shaft motor are coaxially fixed with worms, the worms are connected with worm wheels in a meshed mode, and the worm wheels are coaxially fixed with the winding rollers.
As a modified scheme of the invention: the clamping mechanism comprises two clamping plates hinged to the bottom of the connecting frame, and a worm is fixedly connected between the clamping plates and the connecting frame.
As a modified scheme of the invention: the anti-skid block is fixed on one side opposite to the clamping plate, and the pulling block is fixed on the clamping plate
As a modified scheme of the invention: a driving motor is fixed on the support frame, an output shaft of the driving motor is connected with a transmission gear in a transmission mode through a belt pulley mechanism, and the transmission gear is connected with a spur rack fixed on the sliding plate in a meshing mode.
Compared with the prior art, the invention has the beneficial effects that:
the invention performs primary lifting action on the height position of the connecting frame through the arranged first lifting mechanism. The second grade elevating system who sets up winds or puts the stay cord and establishes, realizes can realizing the meticulous regulation of vertical height by the fixed battery electricity core of fixture centre gripping, guarantees that battery electricity core stretches into the degree of depth regulation of the inside electrolyte of container, guarantees the abundant absorption electrolyte of battery electricity core, and the electronic scale of setting can weigh to the quality around the battery electricity core absorption electrolyte, realizes that battery electricity core imbibition volume is accurate to be detected.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a partial perspective view of the present invention.
In the figure: 1-supporting frame, 2-container, 3-sliding plate, 4-transmission gear, 5-belt pulley mechanism, 6-driving motor, 7-spur rack, 8-lead screw, 9-lead screw sleeve block, 10-driving motor, 11-pull rod, 12-battery cell, 13-electronic scale, 14-connecting frame, 15-double-shaft motor, 16-winding roller, 17-worm gear, 18-pull rope, 19-worm, 20-clamping plate, 21-pull block and 22-anti-slip bump.
Detailed Description
The technical scheme of the patent is further described in detail by combining the following specific embodiments:
example 1
Referring to fig. 1-4, a device for testing the liquid absorption capacity of a lithium ion battery cell comprises a support frame 1, wherein a container 2 for containing electrolyte is fixed on the support frame 1, the support frame 1 is connected with a connecting frame 14 for hanging a battery cell 12 through a first-level lifting mechanism in a driving manner, the connecting frame 14 is connected with a clamping mechanism for clamping the battery cell 12 through a second-level lifting mechanism in a lifting manner, a sliding plate 3 is slidably mounted on the support frame 1, and an electronic scale 13 for weighing the battery cell 12 is arranged on the sliding plate 3.
This device carries out the centre gripping through the clamping structure who sets up to battery electricity core 12 fixed, and the one-level elevating system that realizes through setting up adjusts battery electricity core 12's vertical position is preliminary, carries out further altitude mixture control to battery electricity core 12 at the second grade elevating system through setting up for inside battery electricity core 12 stretched into container 2, the splendid attire had electrolyte in the container 2, realized the imbibition operation of battery electricity core 12 to electrolyte.
Specifically, one-level elevating system includes through driving motor 10 driven coaxial fixed and screw thread revolve to two lead screws 8 opposite, and equal screw thread cover has lead screw sleeve 9 on the lead screw 8, and it has pull rod 11 to articulate between lead screw sleeve 9 and link 14.
The driving motor 10 drives the screw rod 8 to rotate, the screw rod 8 drives the screw rod sleeve block 9 on the screw rod 8 to move oppositely, so that the pull rod 11 drives the connecting frame 14 to move vertically downwards, and at the moment, the clamping mechanism drives the battery electric core 12 to move downwards and extend into the container 2 gradually.
Example 2
On the basis of embodiment 1, in addition, this device still secondary elevating system includes two on link 14 and winds the winding roller 16, winds on winding roller 16 and has the lower extreme and the fixed stay cord 18 of fixture, be fixed with biax motor 15 on link 14, the two output shafts of biax motor 15 are all fixed with worm 19 coaxially, and the meshing is connected with worm wheel 17 on the worm 19, and worm wheel 17 and winding roller 16 are coaxial fixed.
The double-shaft motor 15 is used for driving the worm 19 to rotate, the worm 19 drives the worm wheel 17 on the worm 19 to rotate, the worm wheel 17 drives the winding roller 16 to place the pull rope 18 at the moment, the clamping mechanism is stably moved downwards, and further accurate descending of the battery electric core 12 is achieved.
In addition, the clamping mechanism of the device comprises two clamping plates 20 hinged at the bottom of the connecting frame 14, a worm 19 is fixedly connected between the clamping plates 20 and the connecting frame 14, an anti-skid block 22 is fixed on one opposite side of each clamping plate 20, and a pull block 21 is fixed on each clamping plate 20.
Through the above setting, two supports are fixed according to the centre gripping of grip block 20 realization under the elastic action of worm 19 to the centre gripping of battery electric core 12, draw piece 21 through the pulling and drive grip block 20 and rotate, can realize the release of battery electric core 12, and the skid proof block 22 that sets up can play the antiskid effect to battery electric core 12 clamping process, avoids inside battery electric core 12 falls container 2.
In addition, a driving motor 6 is fixed on the support frame 1, an output shaft of the driving motor 6 is in transmission connection with a transmission gear 4 through a belt pulley mechanism 5, a spur rack 7 fixed on the sliding plate 3 is in meshing connection with the transmission gear 4, the belt pulley mechanism 5 is driven to rotate through the driving motor 6 to realize the driving rotation of the transmission gear 4, at the moment, the spur rack 7 is in meshing transmission with the transmission gear 4 to realize the transverse movement of the sliding plate 3 to the lower side of the battery electric core 12, the release of the battery electric core 12 is realized by pulling the pull block 21, the weighing of the battery electric core 12 is realized, and the quality difference of the battery electric core 12 before and after.
In summary, the following steps: according to the invention, the primary lifting action of the height position of the connecting frame 14 is carried out through the arranged first lifting mechanism, the second lifting mechanism is used for winding or unwinding the pull rope 18, so that the battery cell 12 clamped and fixed by the clamping mechanism can realize fine adjustment of vertical height, the depth adjustment of electrolyte stretching into the container 2 from the battery cell 12 is ensured, the sufficient absorption of the electrolyte by the battery cell 12 is ensured, the mass of the battery cell 12 before and after the absorption of the electrolyte can be weighed through the arranged electronic scale 13, and the accurate detection of the liquid absorption capacity of the battery cell 12 is realized.
It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, various modifications, improvements and substitutions can be made without departing from the spirit of the invention, and all of them belong to the protection scope of the technical solution. The protection scope of this technical solution patent should be subject to the appended claims.
Claims (7)
1. The utility model provides a lithium ion battery electricity core liquid absorption capacity testing arrangement, includes support frame (1), is fixed with container (2) that are used for holding electrolyte on support frame (1), its characterized in that, be connected with link (14) that are used for hanging battery electricity core (12) through the drive of one-level elevating system on support frame (1), be connected with the fixture that is used for centre gripping battery electricity core (12) through the over-and-under type of second grade elevating system on link (14), slidable mounting has sliding plate (3) on support frame (1), is equipped with on sliding plate (3) to be used for electronic scale (13) that weigh to battery electricity core (12).
2. The device for testing the liquid absorption capacity of the lithium ion battery cell according to claim 1, wherein the primary lifting mechanism comprises two coaxially fixed lead screws (8) which are driven by a driving motor (10) and have opposite screw thread directions, a lead screw sleeve block (9) is sleeved on each lead screw (8) in a threaded manner, and a pull rod (11) is hinged between each lead screw sleeve block (9) and the connecting frame (14).
3. The device for testing the liquid absorption capacity of the lithium ion battery cell of claim 1, wherein the secondary lifting mechanism comprises two winding rollers (16) rotatably mounted on the connecting frame (14), and a pull rope (18) with the lower end fixed with the clamping mechanism is wound on the winding rollers (16).
4. The device for testing the liquid absorption capacity of the lithium ion battery cell according to claim 3, wherein a double-shaft motor (15) is fixed on the connecting frame (14), two output shafts of the double-shaft motor (15) are coaxially fixed with a worm (19), a worm wheel (17) is connected to the worm (19) in a meshed manner, and the worm wheel (17) and the winding roller (16) are coaxially fixed.
5. The device for testing the liquid absorption capacity of the lithium ion battery cell of claim 1, wherein the clamping mechanism comprises two clamping plates (20) hinged to the bottom of the connecting frame (14), and a worm (19) is fixedly connected between the clamping plates (20) and the connecting frame (14).
6. The device for testing the liquid absorption capacity of the lithium ion battery cell of claim 5, wherein an anti-slip bump (22) is fixed on one side of the clamping plate (20) opposite to the other side, and a pulling block (21) is fixed on the clamping plate (20).
7. The lithium ion battery electric core liquid absorption capacity testing device according to claim 1, characterized in that a driving motor (6) is fixed on the supporting frame (1), an output shaft of the driving motor (6) is connected with a transmission gear (4) through a belt pulley mechanism (5) in a transmission manner, and the transmission gear (4) is connected with a spur rack (7) fixed on the sliding plate (3) in a meshing manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911281517.1A CN110850309A (en) | 2019-12-13 | 2019-12-13 | Lithium ion battery cell liquid absorption capacity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911281517.1A CN110850309A (en) | 2019-12-13 | 2019-12-13 | Lithium ion battery cell liquid absorption capacity testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110850309A true CN110850309A (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911281517.1A Withdrawn CN110850309A (en) | 2019-12-13 | 2019-12-13 | Lithium ion battery cell liquid absorption capacity testing device |
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| Country | Link |
|---|---|
| CN (1) | CN110850309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147027A (en) * | 2020-09-15 | 2020-12-29 | 深圳新恒业电池科技有限公司 | Battery diaphragm liquid absorption amount detection device and battery diaphragm liquid absorption amount detection method |
| CN116273953A (en) * | 2023-03-23 | 2023-06-23 | 江苏展旺能源科技有限公司 | Detection equipment and detection method for lithium battery detection |
-
2019
- 2019-12-13 CN CN201911281517.1A patent/CN110850309A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147027A (en) * | 2020-09-15 | 2020-12-29 | 深圳新恒业电池科技有限公司 | Battery diaphragm liquid absorption amount detection device and battery diaphragm liquid absorption amount detection method |
| CN116273953A (en) * | 2023-03-23 | 2023-06-23 | 江苏展旺能源科技有限公司 | Detection equipment and detection method for lithium battery detection |
| CN116273953B (en) * | 2023-03-23 | 2024-01-05 | 青岛锐捷智能仪器有限公司 | Detection equipment for lithium battery detection |
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Application publication date: 20200228 |