Lithium salt electrolyte automatic proportioning device for new energy battery

Abstract

The invention is applicable to the technical field of battery processing, and provides an automatic lithium salt electrolyte proportioning device for a new energy battery, comprising: a dissolving tank, the dissolving tank is provided with a feeding assembly and a discharging pipe, and the bottom of the dissolving tank is funnel-shaped; the dissolution promoting mechanism comprises a supporting plate fixedly installed in the middle of the dissolution tank, a through hole is formed in the supporting plate, a separated dissolution assembly used for blocking the through hole is further arranged on the supporting plate, and a driving assembly used for driving the separated dissolution assembly to work is arranged on the dissolution tank; according to the automatic proportioning device, through the arrangement of the dissolution promoting mechanism, the problems that when an existing automatic proportioning device is used, the raw material mixing effect is poor, raw materials cannot be fully dissolved, and the proportioning effect is seriously affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery processing, in particular to an automatic proportioning device for lithium salt electrolyte for new energy batteries. Background Art

[0002] In the new energy battery sector, lithium batteries, with their outstanding advantages such as high energy density, long cycle life, low self-discharge, no memory effect, and environmental friendliness, have been widely adopted in a wide range of applications, including new energy vehicles, consumer electronics, energy storage power stations, electric two-wheelers, 5G base stations, and power tools. The electrolyte, one of the four key materials in lithium batteries (positive electrode, negative electrode, separator, and electrolyte), is known as the "blood" of lithium batteries. It conducts electrons between the positive and negative electrodes and is the key to achieving the high voltage and high specific energy of lithium-ion batteries. The electrolyte is generally composed of high-purity organic solvents, electrolyte lithium salts, and necessary additives, prepared in specific proportions under certain conditions. The dissolution of the lithium salt is the most time-consuming step in the electrolyte preparation process. For example, lithium hexafluorophosphate (LIPF) releases a large amount of heat during dissolution and is heat-sensitive. At temperatures above 15°C, it produces a high level of free acid, resulting in substandard electrolytes.

[0003] Existing automatic proportioning devices do not mix raw materials well during use, resulting in insufficient dissolution of the raw materials, which seriously affects the proportioning effect. Therefore, in view of the above situation, there is an urgent need to provide an automatic proportioning device for lithium salt electrolyte for new energy batteries to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic proportioning device for lithium salt electrolyte for new energy batteries, aiming to solve the problems in the above-mentioned background technology.

[0005] The present invention is achieved by providing an automatic proportioning device for lithium salt electrolyte for new energy batteries, comprising: A dissolving tank, wherein a feeding assembly and a discharging pipe are respectively provided on the dissolving tank, and the bottom of the dissolving tank is funnel-shaped; The dissolution-promoting mechanism includes a support plate fixedly installed in the middle of the dissolution tank, and a through hole is provided on the support plate. A partitioned dissolution component for sealing the through hole is also provided on the support plate. A driving component for driving the partitioned dissolution component is provided on the dissolution tank, and a stirring component is also connected to the driving component.

[0006] As a further solution of the present invention: the feed assembly includes: A feed pipe, the feed pipe is fixedly mounted on the side wall of the dissolving tank and is in communication with the interior of the dissolving tank; and a collecting box, which is connected to one end of the feed pipe away from the dissolving tank, and is provided with a plurality of feed ports.

[0007] As a further solution of the present invention: the feed pipe is located above the supporting plate.

[0008] As a further embodiment of the present invention, the partitioned dissolving component includes: An inner gear ring is rotatably mounted on a support plate, wherein a plurality of rotating shafts are rotatably mounted on the support plate, and each rotating shaft is fixedly mounted with a driven gear 2 meshing with the inner gear ring; A partition block for blocking the through hole, wherein the partition block is slidably mounted on the support plate and is provided with a second rack meshing with the second driven gear; A rotating ring, which is fixedly mounted on the inner gear ring and is also provided with a linkage frame; A second rotating pipe installed on the top of the dissolving tank is rotatably connected to the linkage frame.

[0009] As a further solution of the present invention: the end of the rotating shaft away from the second driven gear passes through the supporting plate and is fixedly mounted with the second mixing plate.

[0010] As a further solution of the present invention: a plurality of groups of spoilers are obliquely arranged on the partition block, and each group of spoilers is provided with a spoiler groove.

[0011] As a further solution of the present invention: the spoiler groove gradually narrows from a side close to the partition block to a side away from the partition block.

[0012] As a further solution of the present invention: the drive assembly includes: A driven gear 1, wherein the driven gear 1 is fixedly mounted on the rotating tube 2; A rack 1 is slidably mounted on the top of the dissolving tank, wherein the rack 1 is meshed with a driven gear 1; A telescopic cylinder is arranged on the dissolving tank, and a telescopic end of the telescopic cylinder is fixedly connected to the rack 1 through a linkage plate.

[0013] As a further solution of the present invention: the stirring assembly includes: A rotating tube 1 is rotatably mounted inside the rotating tube 2, wherein a plurality of adjustment boxes are fixedly mounted on the rotating tube 1, and a driving module for driving the rotating tube 1 to rotate is provided on the dissolving tank; A translation block is slidably mounted in the adjustment box, wherein a spring for elastically pulling the translation block is provided in the adjustment box, and an air guide hole is also provided on the adjustment box, and a hole connected to the air guide hole is provided on the side wall of the rotating tube; A mixing plate 1 is slidably mounted in the regulating box, wherein the mixing plate 1 is fixedly connected to the translation block; A compression box fixedly mounted on the dissolving tank, wherein the compression box is connected to the rotating tube 1 via a conduit, and the conduit is rotatably connected to the rotating tube 1; A piston plate is slidably mounted in the compression box, a push-pull rod is fixedly mounted on the piston plate, and a circular hole for the push-pull rod to pass through is opened on the side wall of the compression box, and one end of the push-pull rod away from the piston plate is fixedly connected to the linkage plate.

[0014] As a further solution of the present invention: an end of the mixing plate away from the translation block has a toothed structure.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the feed component can be used to add the quantitative raw materials into the dissolving tank in batches; the driving component drives the partitioned dissolving component to work, and the partitioned dissolving component and the stirring component are used to cooperate to block the raw materials entering the dissolving tank at the upper part of the dissolving tank for preliminary stirring, so that the raw materials can be fully dissolved; after a period of preliminary stirring, the driving component is used to adjust the working state of the partitioned dissolving component, so that the raw materials in the upper part of the dissolving tank can be mixed with the raw materials in the lower part of the dissolving tank through the through hole, thereby achieving full mixing of the raw materials, making it easier for the raw materials to be fully dissolved, and thus improving the ratio accuracy; The present invention avoids the problem that the existing automatic proportioning device has poor raw material mixing effect when in use, resulting in the raw materials being unable to be fully dissolved and seriously affecting the proportioning effect by setting the dissolution promoting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of the rear view structure.

[0019] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point A in the middle.

[0020] Figure 4 It is a schematic diagram of the internal structure of the present invention.

[0021] Figure 5 Schematic diagram of the structure of the dissolution-promoting mechanism in the present invention.

[0022] Figure 6 for Figure 5 Schematic diagram of the upward-looking structure.

[0023] Figure 7 Schematic diagram of the structure of the partition block in the present invention.

[0024] Figure 8 Schematic diagram of the internal structure of the adjustment box in the present invention.

[0025] In the accompanying drawings: 1-dissolving tank, 2-feed pipe, 3-collecting box, 4-driving module, 5-conduit, 6-compression box, 7-telescopic cylinder, 8-discharging pipe, 9-driven gear 1, 10-rotating tube 1, 11-rack 1, 12-linkage plate, 13-push-pull rod, 14-piston plate, 15-rotating tube 2, 16-adjusting box, 17-linkage frame, 18-rotating ring, 19-inner gear ring, 20-support plate, 21-mixing plate 1, 22-driven gear 2, 23-rotating shaft, 24-rack 2, 25-partitioning block, 26-mixing plate 2, 27-through hole, 28-spoiler, 29-spoiler groove, 30-translation block, 31-spring, 32-air guide hole. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] The present invention will be further explained below with reference to specific embodiments.

[0030] See also Figures 1-8 , an embodiment of the present invention provides an automatic proportioning device for lithium salt electrolyte for new energy batteries, comprising: A dissolving tank 1, wherein the dissolving tank 1 is provided with a feed assembly and a discharge pipe 8, and the bottom of the dissolving tank 1 is funnel-shaped; The dissolution-promoting mechanism includes a support plate 20 fixedly installed in the middle of the dissolution tank 1, and a through hole 27 is provided on the support plate 20. The support plate 20 is also provided with a partitioned dissolution component for sealing the through hole 27. The dissolution tank 1 is provided with a driving component for driving the partitioned dissolution component to work, and the driving component is also connected to a stirring component.

[0031] In an embodiment of the present invention, the feed component can be used to add the quantitative raw materials into the dissolution tank 1 in batches, and the driving component can drive the partitioned dissolution component to work, and the partitioned dissolution component and the stirring component are used to block the raw materials entering the dissolution tank 1 at the upper part of the dissolution tank 1 for preliminary stirring, so that the raw materials can be fully dissolved. After a period of preliminary stirring, the driving component is used to adjust the working state of the partitioned dissolution component, so that the raw materials in the upper part of the dissolution tank 1 can be mixed with the raw materials in the lower part of the dissolution tank 1 through the through hole 27, so as to achieve full mixing of the raw materials, facilitate the full dissolution of the raw materials, and thus improve the proportioning accuracy; compared with the prior art, the present invention avoids the problem that the existing automatic proportioning device has poor raw material mixing effect when in use, which makes it impossible to fully dissolve the raw materials and seriously affects the proportioning effect through the setting of the dissolution-promoting mechanism.

[0032] In one embodiment of the present invention, see Figures 1-8 , the feed assembly comprises: A feed pipe 2, the feed pipe 2 is fixedly mounted on the side wall of the dissolving tank 1, and the feed pipe 2 is connected to the interior of the dissolving tank 1; and a collection box 3, the collection box 3 being connected to the end of the feed pipe 2 away from the dissolution tank 1, and having a plurality of feed ports; The feeding pipe 2 is located above the supporting plate 20 .

[0033] In this embodiment, the feed pipe 2 and the collecting box 3 are arranged in coordination to facilitate the addition of various raw materials into the dissolution tank 1, and the feed pipe 2 is arranged above the support plate 20 to facilitate the added raw materials to fall above the support plate 20 for easy dispersion and dissolution; wherein the feed port and the discharge pipe 8 of the collecting box 3 are both equipped with a sealing cover or a valve structure.

[0034] In one embodiment of the present invention, see Figures 1-8, the separated dissolving component includes: An inner gear ring 19 is rotatably mounted on a support plate 20, and a plurality of rotating shafts 23 are rotatably mounted on the support plate 20, and each rotating shaft 23 is fixedly mounted with a driven gear 22 meshing with the inner gear ring 19; A partition block 25 for blocking the through hole 27 , wherein the partition block 25 is slidably mounted on the support plate 20 and is provided with a second rack 24 meshing with the second driven gear 22 ; A rotating ring 18 is fixedly mounted on the inner gear ring 19 and a linkage frame 17 is also provided on the rotating ring 18; Rotate the second rotating pipe 15 installed on the top of the dissolving tank 1, and the second rotating pipe 15 is fixedly connected to the linkage frame 17; The end of the rotating shaft 23 away from the second driven gear 22 passes through the supporting plate 20 and is fixedly mounted with the second mixing plate 26; The partition block 25 is also provided with a plurality of groups of spoilers 28 which are inclined, and each group of spoilers 28 is provided with a spoiler groove 29; The spoiler groove 29 gradually narrows from the side close to the partition block 25 to the side away from the partition block 25; The drive assembly includes: Driven gear 1 9, the driven gear 1 9 is fixedly mounted on the rotating tube 2 15; A rack 11 is slidably mounted on the top of the dissolving tank 1, and the rack 11 is meshed with a driven gear 9; A telescopic cylinder 7 is provided on the dissolving tank 1, wherein the telescopic end of the telescopic cylinder 7 is fixedly connected to the rack 11 via a linkage plate 12; The stirring assembly comprises: A rotating tube 10 is rotatably mounted in a rotating tube 2 15 . A plurality of adjustment boxes 16 are fixedly mounted on the rotating tube 10 . A driving module 4 for driving the rotating tube 10 to rotate is provided on the dissolving tank 1 . The driving module 4 may be in the form of a motor and a pulley transmission mechanism, which is not specifically limited herein. A translation block 30 is slidably mounted within the adjustment box 16. The adjustment box 16 is provided with a spring 31 for elastically pulling the translation block 30. The adjustment box 16 is also provided with an air guide hole 32. A hole communicating with the air guide hole 32 is provided on the side wall of the rotating tube 10. A mixing plate 21 is slidably mounted in the regulating box 16, wherein the mixing plate 21 is fixedly connected to the translation block 30; A compression box 6 is fixedly mounted on the dissolving tank 1, wherein the compression box 6 is connected to the rotating tube 10 via a conduit 5, and the conduit 5 is rotatably connected to the rotating tube 10; wherein the conduit 5 is made of a hard material; A piston plate 14 is slidably mounted in the compression box 6, a push-pull rod 13 is fixedly mounted on the piston plate 14, and a circular hole for the push-pull rod 13 to pass through is opened on the side wall of the compression box 6, and the end of the push-pull rod 13 away from the piston plate 14 is fixedly connected to the linkage plate 12; wherein the compression box 6 is pre-filled with gas; The end of the mixing plate 21 away from the translation block 30 has a tooth-shaped structure.

[0035] In this embodiment, the telescopic cylinder 7 can drive the push-pull rod 13 and the rack 11 to reciprocate through the linkage plate 12. The reciprocating rack 11 can drive the driven gear 19 to reciprocate forward and reverse. The rotating tube 2 15 will drive the linkage frame 17 to follow the driven gear 19 to move. The rotating ring 18 can make the inner gear ring 19 follow the linkage frame 17 to move, thereby realizing the reciprocating forward and reverse movement of the inner gear ring 19 on the support plate 20. The inner gear ring 19 can drive the driven gear 2 22 to reciprocate forward and reverse, and cooperate with the rack 2 24 to The driving module 4 can drive the partition block 25 to slide back and forth on the support plate 20, so that the multiple groups of partition blocks 25 can be gathered or dispersed with each other. After the multiple groups of partition blocks 25 are gathered, the through hole 27 can be blocked. When the multiple groups of partition blocks 25 are dispersed, the through hole 27 will be opened. The driving module 4 can realize the rotation of the mixing plate 21 with the rotating tube 10 as the axis by driving the rotating tube 10 to rotate, thereby realizing the stirring treatment of the raw materials on the upper part of the dissolving tank 1 and promoting the dissolution. When the push-pull rod 13 follows the reciprocating motion of the linkage plate 12, the push-pull rod 13 will drive the piston plate 14 to push or draw the gas into the compression box 6, and cooperate with the conduit 5 to send the gas into the rotating tube 10 or draw it out from the rotating tube 10. Cooperating with the traction of the spring 31, after the gas enters and exits the regulating box 16, the translation block 30 can drive the mixing plate 1 21 to reciprocate, change the working range of the mixing plate 1 21, and further improve the stirring effect. The toothed structure at the end of the mixing plate 1 21 can further improve the stirring effect. When the dividing block 25 disperses (that is, the dividing block 25 moves toward the side facing the spoiler groove 29), the spoiler 28 can push the raw material upward, and cooperate with the gathering effect of the spoiler groove 29, so that part of the raw material has a certain acceleration effect when it slides out of the end of the spoiler groove 29, thereby achieving a counter-action effect, thereby improving the stirring effect and allowing the raw material to be fully dissolved. When the rotating shaft 23 continues to reciprocate, it can drive the mixing plate 2 26 to stir the raw material at the bottom of the dissolving tank 1, and cooperate with the stirring assembly to achieve global stirring, further improving the dissolution effect, and thus improving the proportioning accuracy.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic proportioning device for lithium salt electrolyte for new energy batteries, comprising a dissolving tank, wherein the dissolving tank is respectively provided with a feeding assembly and a discharging pipe, and the bottom of the dissolving tank is funnel-shaped, characterized in that: Also includes: The dissolution-promoting mechanism includes a support plate fixedly installed in the middle of the dissolution tank, and a through hole is provided on the support plate. A partitioned dissolution component for sealing the through hole is also provided on the support plate. A driving component for driving the partitioned dissolution component is provided on the dissolution tank, and a stirring component is also connected to the driving component.

2. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 1, characterized in that: The feed assembly comprises: A feed pipe, the feed pipe is fixedly mounted on the side wall of the dissolving tank and is in communication with the interior of the dissolving tank; and a collecting box, which is connected to one end of the feed pipe away from the dissolving tank, and is provided with a plurality of feed ports.

3. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 2, characterized in that: The feeding pipe is located above the supporting plate.

4. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 1, characterized in that: The separated dissolving component comprises: An inner gear ring is rotatably mounted on a support plate, wherein a plurality of rotating shafts are rotatably mounted on the support plate, and each rotating shaft is fixedly mounted with a driven gear 2 meshing with the inner gear ring; A partition block for blocking the through hole, wherein the partition block is slidably mounted on the support plate and is provided with a second rack meshing with the second driven gear; A rotating ring, which is fixedly mounted on the inner gear ring and is also provided with a linkage frame; A second rotating pipe installed on the top of the dissolving tank is rotatably connected to the linkage frame.

5. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 4, characterized in that: One end of the rotating shaft away from the second driven gear passes through the supporting plate and is fixedly mounted with the second mixing plate.

6. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 4, characterized in that: A plurality of groups of spoilers are obliquely arranged on the partition block, and each group of spoilers is provided with a spoiler groove.

7. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 6, characterized in that: The spoiler groove gradually narrows from a side close to the partition block to a side far away from the partition block.

8. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 4, characterized in that: The drive assembly includes: A driven gear 1, wherein the driven gear 1 is fixedly mounted on the rotating tube 2; A rack 1 is slidably mounted on the top of the dissolving tank, wherein the rack 1 is meshed with a driven gear 1; A telescopic cylinder is arranged on the dissolving tank, and a telescopic end of the telescopic cylinder is fixedly connected to the rack 1 through a linkage plate.

9. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 8, characterized in that: The stirring assembly comprises: A rotating tube 1 is rotatably mounted inside the rotating tube 2, wherein a plurality of adjustment boxes are fixedly mounted on the rotating tube 1, and a driving module for driving the rotating tube 1 to rotate is provided on the dissolving tank; A translation block is slidably mounted in the adjustment box, wherein a spring for elastically pulling the translation block is provided in the adjustment box, and an air guide hole is also provided on the adjustment box, and a hole connected to the air guide hole is provided on the side wall of the rotating tube; A mixing plate 1 is slidably mounted in the regulating box, wherein the mixing plate 1 is fixedly connected to the translation block; A compression box fixedly mounted on the dissolving tank, wherein the compression box is connected to the rotating tube 1 via a conduit, and the conduit is rotatably connected to the rotating tube 1; A piston plate is slidably mounted in the compression box, a push-pull rod is fixedly mounted on the piston plate, and a circular hole for the push-pull rod to pass through is opened on the side wall of the compression box, and one end of the push-pull rod away from the piston plate is fixedly connected to the linkage plate.

10. The automatic proportioning device for lithium salt electrolyte for new energy batteries according to claim 9, characterized in that: An end of the mixing plate away from the translation block has a toothed structure.

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