CN114146608A

CN114146608A - Mixing arrangement for lithium cell electrolyte

Info

Publication number: CN114146608A
Application number: CN202111326632.3A
Authority: CN
Inventors: 段俊峰; 杨攀; 田如雄
Original assignee: Hubei Nopon Science And Technology Co ltd
Current assignee: Hubei Nopon Science And Technology Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-03-08
Anticipated expiration: 2041-11-10
Also published as: CN114146608B

Abstract

The invention discloses a mixing device for lithium battery electrolyte, which comprises a second servo motor and a third servo motor, wherein the surface of a rotating rod is symmetrically and fixedly connected with stirring blades, two ends of the rotating rod are symmetrically and rotatably sleeved with rotating sleeve plates, one opposite surface of each rotating sleeve plate is symmetrically and rotatably sleeved with a rotating lead screw, the surface of each rotating lead screw is symmetrically and threadedly sleeved with a rotating sleeve ring, the opposite surfaces of the rotating sleeve rings are fixedly connected with flow guide mechanisms, the surfaces of the flow guide mechanisms are symmetrically connected with slide blocks, one end of each rotating lead screw extends out of one side of the right rotating sleeve plate and is movably sleeved with a belt pulley. This mixing arrangement for lithium cell electrolyte has solved conventional rabbling mechanism when the stirring, leads to inner chamber liquid flow area unchangeable, and it is inhomogeneous when will leading to lithium salt, solvent and additive to fuse again to and the problem that lithium salt, solvent and additive defective material can appear in the liquid.

Description

Mixing arrangement for lithium cell electrolyte

Technical Field

The invention relates to the technical field of lithium batteries, in particular to a mixing device for lithium battery electrolyte.

Background

A lithium battery is a battery using a nonaqueous electrolyte solution and lithium metal or a lithium alloy as a negative electrode material, and therefore such a battery is also called a lithium metal battery. Unlike other batteries, lithium batteries have the characteristics of high charge density, long service life, high unit cost and the like. Lithium batteries, depending on their structural design and electrode materials, can produce voltages of 1.5V (equivalent to zinc-carbon or alkaline batteries) to 3.7V, where the electrolyte is the medium (somewhat corrosive) used by chemical batteries, electrolytic capacitors, etc., to provide ions for their normal operation. And ensures that the chemical reactions taking place in operation are reversible. The electrolyte has many advantages by using the electrolyte as the cathode. Firstly, the contact area between the liquid and the medium is large, which is helpful for improving the capacitance. Secondly, the electrolytic capacitor manufactured by using the electrolyte can resist the high temperature of 260 ℃ at most, so that wave soldering (wave soldering is an important process for SMT patch mounting) can be carried out, and the pressure resistance is stronger.

At present, when lithium ion battery electrolyte is stirred, lithium salt, solvent, additives and the like are mixed and stirred through mixing equipment, but a conventional stirring mechanism is mostly adopted in the preparation of the lithium ion battery electrolyte, the flowing area of the liquid in an inner cavity is unchanged when the liquid is stirred by the conventional stirring mechanism, the lithium salt, the solvent and the additives are not uniform when being re-fused, and the lithium salt, the solvent and the additives can be generated in the liquid.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a mixing device for lithium battery electrolyte, which solves the problems that when a conventional stirring mechanism is used for stirring, the flow area of liquid in an inner cavity is unchanged, the lithium salt, the solvent and the additive are not uniform when being re-fused, and the lithium salt, the solvent and the additive are residual materials in the liquid.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a mixing arrangement for lithium cell electrolyte, includes that base and symmetry fix the backup pad at base top, the one side symmetry that the backup pad is relative has cup jointed a jar body through rotating the round pin post rotation, be provided with agitating unit between the both ends of the jar body and the inner chamber, be provided with pendulous device between the bottom of jar body right-hand member and the base right side top.

Agitating unit includes second servo motor and third servo motor, second servo motor's output end fixedly connected with dwang, the surperficial symmetry fixedly connected with stirring leaf of dwang, the both ends symmetry of dwang is rotated and has been cup jointed and is rotated the lagging, the one side symmetry that rotates the lagging relative is rotated and has been cup jointed and rotate the lead screw, the surperficial symmetry screw thread that rotates the lead screw has cup jointed the rotation lantern ring, the equal fixedly connected with water conservancy diversion mechanism in surface that rotates the lantern ring opposite, the surperficial symmetry of water conservancy diversion mechanism is connected with the sliding block, the one end that rotates the lead screw extends to outside the one side that the lagging was rotated on the right to cup jointed the belt pulley with the activity.

The flow guide mechanism comprises a hollow arc plate, the front surface and the back surface of the hollow arc plate are symmetrically and fixedly connected with a triangular circular plate, the surface of the triangular circular plate is symmetrically and fixedly provided with a groove, the inner cavity of the hollow arc plate is symmetrically and slidably sleeved with an arc plate, and a spring is fixedly connected between the bottom of the arc plate and the top of the inner cavity of the groove.

Preferably, the swinging device comprises a first servo motor, a mounting plate is fixedly mounted at the bottom of the first servo motor, an eccentric disc is fixedly connected to the output end of the first servo motor, a connecting rod is sleeved on the surface of the eccentric disc in a rotating mode, and a rotating assembly is sleeved on one end of the connecting rod in a rotating mode.

Preferably, the right top of the tank body is fixedly communicated with a feed inlet, and the left bottom of the tank body is fixedly communicated with a discharge valve.

Preferably, the top of the rotating assembly is fixedly connected to the surface of the right bottom of the tank body, and the surface of the mounting plate is fixedly connected to the right top of the base through a bolt.

Preferably, the output end of the third servo motor is movably connected in the inner cavity of the belt pulley, the second servo motor is fixed at the left end of the tank body, and the third servo motor is fixedly connected at the right end of the tank body through a support frame.

Preferably, the surface of the sliding block is connected with the two ends of the arc-shaped plate, and one end of the sliding block is symmetrically sleeved in a sliding groove formed in the inner cavity of the tank body in a sliding manner.

Preferably, the surface of the arc-shaped plate is matched with the inner cavity of the groove, and the arc-shaped plate is contacted with the inner wall of the inner cavity of the tank body.

Preferably, the stirring blades are smaller than the distance between the rotating screw rods, and the rotating screw rods extend out of the right end of the tank body.

Advantageous effects

The invention provides a mixing device for lithium battery electrolyte. Compared with the prior art, the method has the following beneficial effects:

1. this mixing arrangement for lithium cell electrolyte, through starting second servo motor and third servo motor, at first the output of second servo motor can drive the dwang and rotate in the inner chamber that rotates the lagging plate, make the stirring leaf on the surface of the dwang stir the liquid of jar internal chamber, the output of third servo motor can drive through the belt pulley and rotate the lead screw and rotate simultaneously, and drive water conservancy diversion mechanism through the rotation lantern ring that rotates the lead screw surface and carry out the removal left and right, the slip piece can carry out the slip of following in the spout that the internal chamber was seted up simultaneously, make the stirring leaf when stirring, through the promotion that water conservancy diversion mechanism made a round trip to liquid, make the liquid flow area grow, come the liquid merge better evenly, solve conventional rabbling mechanism when stirring, lead to the inner chamber liquid flow area unchangeable, will lead to the lithium salt, the lithium salt, The solvent and the additive are not uniformly re-mixed, and the lithium salt, the solvent and the additive residue are generated in the liquid.

2. This mixing arrangement for lithium battery electrolyte through the triangle circular slab, can reduce the resistance that hollow circular arc board produced when promoting liquid to and the elasticity that the spring of recess inner chamber produced can drive the arc board and carry out automatic tensioning in the inner chamber of recess and stretch out and draw back, makes the arc support in the inner chamber of the jar body, can scrape to jar remaining liquid of internal wall and get, avoids jar internal chamber to have the viscous phenomenon of residual liquid.

3. This mixing arrangement for lithium battery electrolyte, enclosing cover through opening the feed inlet top, lithium salt with the ratio, solvent and additive are whole to enter into the inner chamber of the jar body through the feed inlet, then close the enclosing cover of feed inlet surface again, then start agitating unit and pendulous device, wherein first servo motor's output can drive the eccentric disc and rotate, the connecting rod that drives the eccentric disc surface carries out eccentric motion in the inner chamber of runner assembly, thereby the one end that drives the jar body carries out the lift that relapses under the rotation of rotation round pin post, the liquid that realizes jar internal chamber carries out the rolling of large tracts of land.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a swing device according to the present invention;

FIG. 3 is a schematic view of a stirring device according to the present invention;

FIG. 4 is an enlarged view of a portion of the structure of FIG. 3;

FIG. 5 is a schematic view of a structural flow guide mechanism of the present invention;

FIG. 6 is a cross-sectional view of a structural hollow circular arc plate of the present invention;

in the figure: 1. a base; 2. a support plate; 3. rotating the pin; 4. a tank body; 5. a feed inlet; 6. a discharge valve; 7. a swing device; 71. a first servo motor; 72. mounting a plate; 73. an eccentric disc; 74. a connecting rod; 75. a rotating assembly; 8. a stirring device; 81. a second servo motor; 82. rotating the rod; 83. stirring blades; 84. rotating the sleeve plate; 85. rotating the screw rod; 86. rotating the lantern ring; 87. a flow guide mechanism; 871. a hollow arc plate; 872. a triangular circular plate; 873. an arc-shaped plate; 874. a groove; 875. a spring; 88. a slide block; 89. a third servo motor; 810. a pulley.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a technical solution: the utility model provides a mixing arrangement for lithium cell electrolyte, includes that base 1 and symmetry fix in backup pad 2 at base 1 top, and the one side symmetry that backup pad 2 is relative has cup jointed a jar body 4 through rotating pin 3 rotation, is provided with agitating unit 8 between the both ends of jar body 4 and the inner chamber, is provided with pendulous device 7 between the bottom of jar body 4 right-hand member and the base 1 right side top, and the fixed intercommunication in right side top of jar body 4 has feed inlet 5, and the fixed intercommunication in left bottom of jar body 4 has bleeder valve 6.

Referring to fig. 3-4, the stirring device 8 includes a second servo motor 81 and a third servo motor 89, an output end of the second servo motor 81 is fixedly connected with a rotating rod 82, a surface of the rotating rod 82 is symmetrically and fixedly connected with stirring blades 83, two ends of the rotating rod 82 are symmetrically and rotatably sleeved with rotating sleeve plates 84, one opposite surfaces of the rotating sleeve plates 84 are symmetrically and rotatably sleeved with rotating lead screws 85, a surface of the rotating lead screws 85 is symmetrically and threadedly sleeved with rotating sleeve rings 86, opposite surfaces of the rotating sleeve rings 86 are fixedly connected with flow guide mechanisms 87, surfaces of the flow guide mechanisms 87 are symmetrically connected with sliding blocks 88, one end of the rotating lead screw 85 extends out of one side of the right rotating sleeve plate 84 and is movably sleeved with a belt pulley 810, an output end of the third servo motor 89 is movably connected in an inner cavity of the belt pulley 810, the second servo motor 81 is fixed at a left end of the tank 4, the third servo motor 89 is fixedly connected to the right end of the tank body 4 through a support frame, the surface of the sliding block 88 is connected with the two ends of the arc plate 873, one end of the sliding block 88 is symmetrically and slidably sleeved in a sliding groove formed in the inner cavity of the tank body 4, the stirring blade 83 is smaller than the distance between the rotating screw rods 85, and the rotating screw rods 85 extend out of the right end of the tank body 4

Referring to fig. 5-6, the diversion mechanism 87 includes a hollow arc plate 871, a triangular circular plate 872 is symmetrically and fixedly connected to the front and back surfaces of the hollow arc plate 871, grooves 874 are symmetrically and fixedly formed in the surface of the triangular circular plate 872, an arc plate 873 is symmetrically and slidably sleeved in the inner cavity of the hollow arc plate 871, a spring 875 is fixedly connected between the bottom of the arc plate 873 and the top of the inner cavity of the groove 874, the surface of the arc plate 873 is matched with the inner cavity of the groove 874, and the arc plate 873 is in contact with the inner wall of the inner cavity of the tank 4.

Referring to fig. 2, the swing device 7 includes a first servo motor 71, a mounting plate 72 is fixedly mounted at the bottom of the first servo motor 71, an eccentric disc 73 is fixedly connected to an output end of the first servo motor 71, a connecting rod 74 is rotatably sleeved on the surface of the eccentric disc 73, a rotating assembly 75 is rotatably sleeved at one end of the connecting rod 74, the top of the rotating assembly 75 is fixedly connected to the surface of the right bottom of the tank 4, and the surface of the mounting plate 72 is fixedly connected to the right top of the base 1 through a bolt.

When in use, firstly, the outer cover at the top of the feed inlet 5 is opened, lithium salt, solvent and additive with the mixture ratio enter the inner cavity of the tank body 4 through the feed inlet 5, then the outer cover on the surface of the feed inlet 5 is closed, then the stirring device 8 and the swinging device 7 are started, wherein the output end of the first servo motor 71 drives the eccentric disc 73 to rotate, the connecting rod 74 on the surface of the eccentric disc 73 is driven to perform eccentric motion in the inner cavity of the rotating component 75, so that one end of the tank body 4 is driven to repeatedly lift under the rotation of the rotating pin column 3, the liquid in the inner cavity of the tank body 4 is driven to roll back and forth, the second servo motor 81 and the third servo motor 89 are started, firstly, the output end of the second servo motor 81 drives the rotating rod 82 to rotate in the inner cavity of the rotating sleeve plate 84, and the stirring blade 83 on the surface of the rotating rod 82 stirs the liquid in the inner cavity of the tank body 4, meanwhile, the output end of the third servo motor 89 can drive the rotary screw rod 85 to rotate through the belt pulley 810, the rotary lantern ring 86 on the surface of the rotary screw rod 85 can drive the flow guide mechanism 87 to move left and right, meanwhile, the sliding block 88 can slide in a sliding groove formed in the inner cavity of the tank body 4 to follow, so that the stirring blade 83 pushes liquid back and forth through the flow guide mechanism 87 while stirring, the flow area of the liquid is enlarged, the liquid is better and uniformly fused, in addition, the resistance generated when the hollow arc plate 871 pushes the liquid can be reduced through the triangular circular plate 872, the elastic force generated by the spring 875 in the inner cavity of the groove 874 can drive the arc plate 873 to automatically tension and stretch in the inner cavity of the groove 874, the arc plate 873 is abutted to the inner cavity of the tank body 4, and the residual liquid on the inner wall of the tank body 4 can be scraped, avoid the phenomenon that the residual liquid in the inner cavity of the tank body 4 is sticky.

After the stirring is completed, the output end of the first servo motor 71 can perform eccentric motion in the inner cavity of the rotating assembly 75 through the eccentric disc 73 and the connecting rod 74, so that the left end of the tank body 4 faces downward, the right end of the tank body 4 rises, the tank body 4 is made to be inclined, then the first servo motor 7 is stopped, the first servo motor 7 is kept in the state, then a collecting cylinder is placed below the discharge valve 6, the discharge valve 6 is opened, liquid in the inner cavity of the tank body 4 flows out of the collecting cylinder, meanwhile, the second servo motor 81 and the third servo motor 89 can also rotate, liquid remained by the rotating rod 82 and the stirring blade 83 can be thrown into the inner cavity of the tank body 4, and then the arc-shaped plate 873 and the sliding block 88 respectively scrape out the residual liquid on the inner wall of the tank body 4 and the whole residual liquid remained in the sliding chute started by the inner cavity of the tank body 4 and flow out along the discharge valve 6.

Further, when the hollow arc plate 871 is pushed back, the sliding block 88 extrudes liquid entering a chute formed in the inner cavity of the tank body 4 during movement, a sealing ring is arranged at the joint of the rotating screw rod 85 extending to the outside of the right end of the tank body 4 to prevent the liquid from flowing out, and the first servo motor 71, the second servo motor 81 and the third servo motor 89 realize forward and reverse rotation, which is Y2.

And those not described in detail in this specification are well within the skill of those in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mixing arrangement for lithium cell electrolyte, includes that base (1) and symmetry fix backup pad (2) at base (1) top, the one side symmetry that backup pad (2) is relative has cup jointed jar body (4), its characterized in that through rotating round pin post (3) rotation: a stirring device (8) is arranged between the two ends of the tank body (4) and the inner cavity, and a swinging device (7) is arranged between the bottom of the right end of the tank body (4) and the right top of the base (1);

the stirring device (8) comprises a second servo motor (81) and a third servo motor (89), the output end of the second servo motor (81) is fixedly connected with a rotating rod (82), stirring blades (83) are symmetrically and fixedly connected to the surface of the rotating rod (82), rotating sleeve plates (84) are symmetrically sleeved at the two ends of the rotating rod (82) in a rotating mode, a rotary screw rod (85) is symmetrically sleeved on one surface of the rotary sleeve plate (84) in a rotating way, the surface of the rotating screw rod (85) is symmetrically sheathed with a rotating lantern ring (86) through screw threads, the opposite surfaces of the rotating lantern ring (86) are fixedly connected with a flow guide mechanism (87), the surface of the flow guide mechanism (87) is symmetrically connected with a slide block (88), one end of the rotary screw rod (85) extends out of one side of the right rotary sleeve plate (84) and is movably sleeved with a belt pulley (810);

flow guide mechanism (87) include hollow circular arc board (871), hollow circular arc board (871) positive and negative face symmetry fixedly connected with triangle circular board (872), the fixed surface symmetry of triangle circular board (872) is seted up flutedly (874), the inner chamber symmetry slip of hollow circular arc board (871) has cup jointed arc board (873), fixedly connected with spring (875) between the bottom of arc board (873) and the top of recess (874) inner chamber.

2. The mixing device for a lithium battery electrolyte according to claim 1, characterized in that: pendulous device (7) include first servo motor (71), the bottom fixed mounting of first servo motor (71) has mounting panel (72), output fixedly connected with eccentric disc (73) of first servo motor (71), connecting rod (74) have been cup jointed in the surface rotation of eccentric disc (73), rotating assembly (75) have been cup jointed in the one end rotation of connecting rod (74).

3. The mixing device for a lithium battery electrolyte according to claim 1, characterized in that: the right top of the tank body (4) is fixedly communicated with a feed inlet (5), and the left bottom of the tank body (4) is fixedly communicated with a discharge valve (6).

4. A mixing device for a lithium battery electrolyte according to claim 2, characterized in that: the top fixed connection of runner assembly (75) is on the surface of jar body (4) right side bottom, the surface of mounting panel (72) passes through bolt fixed connection at the right top of base (1).

5. The mixing device for a lithium battery electrolyte according to claim 1, characterized in that: output swing joint of third servo motor (89) is in the inner chamber of belt pulley (810), second servo motor (81) are fixed at the left end of the jar body (4), third servo motor (89) pass through support frame fixed connection at the right-hand member of the jar body (4).

6. The mixing device for a lithium battery electrolyte according to claim 1, characterized in that: the surface of the sliding block (88) is connected with the two ends of the arc-shaped plate (873) mutually, and one end of the sliding block (88) is symmetrically sleeved in a sliding groove formed in the inner cavity of the tank body (4) in a sliding manner.

7. The mixing device for a lithium battery electrolyte according to claim 1, characterized in that: the surface of the arc-shaped plate (873) is matched with the inner cavity of the groove (874), and the arc-shaped plate (873) is contacted with the inner wall of the inner cavity of the tank body (4).

8. The mixing device for a lithium battery electrolyte according to claim 1, characterized in that: the stirring blades (83) are smaller than the distance between the rotary screw rods (85), and the rotary screw rods (85) extend out of the right end of the tank body (4).