CN213425043U - Vibration device for promoting permeation and exhaust of lithium ion battery electrolyte - Google Patents

Abstract

The utility model discloses a short carminative oscillation device that permeates of lithium ion battery electrolyte, including ultrasonic generator, vibrate flat board, sound wave absorption wall, spring support post, shake active cell, damping spring and bottom plate, ultrasonic generator and sound wave absorption wall are placed respectively and are being vibrated dull and stereotyped both sides, and the battery package that will annotate the electrolyte is placed on vibrating the flat board, opens ultrasonic generator and vibrates the flat board, can accelerate electrolyte infiltration diaphragm and positive negative pole, promotes the bubble exhaust in the battery package. The utility model discloses can shorten the time that electrolyte soaks diaphragm and positive negative pole piece, it is long when saving the ageing process of follow-up battery 50%, convenient operation, the practicality is strong, improves production efficiency, can realize the industrial production.

Description

Vibration device for promoting permeation and exhaust of lithium ion battery electrolyte

Technical Field

The utility model belongs to the technical field of lithium ion battery, especially, relate to a short carminative oscillation device that permeates of lithium ion battery electrolyte.

Background

In recent years, various electronic products have been widely integrated into our lives, and human beings cannot keep away from the energy supply of batteries. The lithium ion battery has the advantages of high energy density, long cycle life, environmental protection, good coulombic efficiency and the like, is widely applied to the fields of digital products, aerospace, electric power energy and the like, and brings great convenience to our lives.

The soft package lithium ion battery is a third generation power lithium ion battery with better performance, and is one of the main development directions of future batteries. The soft package lithium ion battery is generally packaged by heat, and electrolyte is required to be filled in a glove box before heat packaging. The liquid injection and permeation process is one of the core processes in the production process of the soft package lithium battery, the quality and the safety of the battery are directly influenced by the liquid injection and permeation process, and various performance indexes of the battery are influenced by the absorption amount of electrolyte. Because the liquid electrolyte slowly interacts and reacts with the electrode material and the packaging material, the solvent is easily dried, volatilized and leaked in long-term service, and the electrode material is easily corroded to generate impurities, so that the service life of the battery is influenced. Therefore, when the electrolyte is added, the electrolyte is firstly added in an excessive amount, and then the excessive electrolyte is extracted in vacuum, so that the electrolyte amount of the packaged battery is proper. The traditional electrolyte filling mode mainly adopts methods such as negative pressure filling or manual liquid filling, the electrolyte can not completely infiltrate the diaphragm or the positive and negative pole pieces, and even if the electrolyte is infiltrated, gas can be remained in holes of various diaphragms, which is not beneficial to performance exertion of the battery. Therefore, in order to compensate for this drawback, aging and autoclaving time are relatively long, and both procedures take up a relatively long time during the battery production process. Therefore, it is necessary to improve the method and device of the existing lithium ion battery electrolyte filling system, improve the production efficiency and performance of the battery, and reduce the production cost and labor intensity.

Therefore, a brand-new energy-saving and environment-friendly ultrasonic oscillation technology and device capable of accelerating permeation promotion and exhaust of lithium ion battery electrolyte are provided.

SUMMERY OF THE UTILITY MODEL

In order to overcome the current lithium battery electrolyte and annotate liquid infiltration and exhaust not enough, the utility model aims to provide a brand-new, energy-concerving and environment-protective can accelerate the carminative oscillation device of the short infiltration of lithium battery electrolyte, the device not only can accelerate the infiltration of electrolyte at the diaphragm after electrolyte is annotated, still can make the battery exhaust fast.

The utility model discloses a solve its technical problem and the technical scheme who adopts is:

an oscillation device for permeation promotion and exhaust of lithium ion battery electrolyte comprises: the bottom plate, be located the vibration on the bottom plate dull and stereotypedly and set up in vibrate damping device between dull and stereotyped and the bottom plate, it is provided with the mounting structure that can install the battery package on the dull and stereotyped to vibrate, vibrate dull and stereotyped connection and have the mechanical vibration source that can drive its vibration.

The utility model discloses an in the preferred scheme, vibrate dull and stereotyped one side be provided with can be in through the ultrasonic wave vibrate the dull and stereotyped ultrasonic wave generating device who produces vibration.

The utility model discloses an in the preferred scheme, the opposite side of shaking the flat board be provided with the sound wave absorption wall that can absorb ultrasonic wave.

The utility model discloses an in the preferred scheme, the mechanical vibration source include a plurality of set up in vibrate the mechanical oscillator of dull and stereotyped edge.

The utility model discloses an in the preferred scheme, the vibration flat board be squarely, mechanical oscillator's quantity is 4, 4 mechanical oscillator set up respectively in 4 edges of vibrating the flat board.

The utility model discloses an in the preferred scheme, mounting structure including set up in vibrate the draw-in groove at dull and stereotyped middle part.

The utility model discloses an in the preferred scheme, damping device include a plurality of damping spring, be provided with a plurality of spring support post on the bottom plate, the damping spring cover is located on the spring support post and damping spring's upper end with vibrate dull and stereotyped bottom and connect.

The utility model discloses an in the preferred scheme, ultrasonic wave generating device power operating frequency is 30 ~ 120 KHz.

The utility model has the advantages that:

1. this exhaust vibrating device of short infiltration of lithium ion battery electrolyte, the in-process of mechanical vibration source vibration can make the bubble in the electrolyte of placing the battery package on shaking the flat board discharge fast, makes electrolyte soak diaphragm or positive and negative pole piece better simultaneously, labour saving and time saving, and is high-efficient swift.

2. The mechanical vibration source is used, and meanwhile ultrasonic waves generated by the ultrasonic wave generating device act on the oscillation flat plate, so that the efficiency of exhausting and infiltrating can be further improved.

3. The vibrating device for promoting permeation and exhaust of the lithium ion battery electrolyte can reduce the electrolyte over-injection condition, save the cost, save the standing and aging time of the battery pack after liquid injection and improve the production efficiency of enterprises.

4. The vibrating device for promoting permeation and exhaust of the lithium ion battery electrolyte can change the ultrasonic and vibrating time according to the size of the battery and the actual situation, and is convenient and efficient.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a three-dimensional perspective view of an oscillation device for promoting permeation and exhaust of lithium ion battery electrolyte provided by the utility model;

fig. 2 is a top view of an oscillation device for promoting permeation and exhaust of lithium ion battery electrolyte provided by the present invention;

fig. 3 is the utility model provides a short carminative vibrating device front view of permeating of lithium ion battery electrolyte.

Description of reference numerals: 1. an ultrasonic wave generating device; 2. vibrating the flat plate; 21. a card slot; 3. a sound wave absorbing wall; 4. a spring support post; 5. a mechanical vibrator; 6. a damping spring; 7. a base plate.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

In order to further clarify the technical problem, technical scheme and beneficial effect that should solve in the utility model, combine the figure to be right the utility model discloses carry out further detailed description, specifically state and only be used for the explanation of the utility model discloses do not be used for limiting the utility model discloses.

It should be noted that terms such as "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," and the like, used herein, refer to the orientation of various devices or elements in the drawings, and are merely used to describe the orientation of various devices or elements in the present disclosure, rather than the orientation, configuration, and operation of the devices or elements in a particular direction, and thus should not be construed as limiting the present disclosure.

Specifically, referring to fig. 1 to 3, an oscillation device for promoting permeation and exhaust of electrolyte of a lithium ion battery includes: bottom plate 7, the dull and stereotyped 2 and set up in the damping device who vibrates between dull and stereotyped 2 and bottom plate 7 of shaking that are located on bottom plate 7 vibrate and are provided with the mounting structure that can install the battery package on dull and stereotyped 2, vibrate dull and stereotyped 2 and be connected with the mechanical vibration source that can drive its vibration.

In the process of the vibration of the mechanical vibration source, bubbles in the electrolyte of the battery pack placed on the vibration flat plate 2 can be quickly discharged, and meanwhile, the electrolyte can better infiltrate the diaphragm or the positive and negative pole pieces, so that the time and labor are saved, and the efficiency is high and the speed is high.

Further, an ultrasonic wave generating device 1 capable of generating vibration on the oscillation plate 2 by ultrasonic waves is provided at one side of the oscillation plate 2. Optionally, the power working frequency of the ultrasonic wave generating device 1 is 30-120 KHz.

Further, the other side of the oscillating plate 2 is provided with a sound wave absorbing wall 3 capable of absorbing ultrasonic waves.

The ultrasonic wave generating device 1 and the sound wave absorption wall 3 are parallelly arranged on two sides of the vibration flat plate 2 and play roles in carrying out ultrasonic waves and absorbing redundant ultrasonic waves. The ultrasonic waves generated by the ultrasonic wave generating device 1 are applied to the oscillating plate 2 while using the mechanical vibration source, so that the efficiency of exhausting and infiltrating can be further improved.

Preferably, the oscillating plate 2 is square, and is horizontally placed, and the mechanical vibration source includes 4 mechanical vibrators 5, and the 4 mechanical vibrators 5 are respectively arranged at 4 corners of the oscillating plate 2.

Preferably, mounting structure is including setting up in the draw-in groove 21 that shakes dull and stereotyped 2 middle parts, and the preferred square of shape of draw-in groove 21, and draw-in groove 21 is the metal material and can design the trench bore according to actual production requirement.

Preferably, damping device includes a plurality of damping spring 6, is provided with a plurality of spring support post 4 on the bottom plate 7, and damping spring 6 cover is located on spring support post 4 and damping spring 6's upper end is connected with the bottom of shaking dull and stereotyped 2. The number of the damping springs 6 is preferably 15, and each damping spring 6 is uniformly distributed below the oscillating flat plate 2, so that the vibration amplitude of the flat plate is reduced, and the electrolyte is prevented from splashing.

Ultrasonic wave generating device 1, sound wave absorption wall 3, mechanical oscillator 5 are current product, three's concrete structure the utility model discloses well no longer give unnecessary details. The mechanical vibrator 5 can be fixed on the oscillating panel 2 through connection modes such as screw connection, clamping connection and the like; the bottoms of the ultrasonic wave generating device 1 and the sound wave absorbing wall 3 can be unfixed, and can also be installed on the bottom plate 7 through detachable connecting structures such as a screw connection structure, and the positions of the ultrasonic wave generating device 1 and the sound wave absorbing wall 3 can be correspondingly adjusted according to actual production conditions.

The utility model discloses a work flow as follows: firstly, the battery pack after liquid injection is placed into a circulation push-pull box, the circulation push-pull box is placed in a clamping groove 21, and then ultrasonic vibration is performed through an ultrasonic generating device 1 and a vibration flat plate 2 to promote exhaust. Compared with the traditional battery pack standing and aging process, the electrolyte slowly permeates into the diaphragm pore after being injected with the electrolyte, the time is 12 to 30 hours, the battery pack standing and aging time for promoting the exhaust through ultrasonic vibration is only 6 to 15 hours, the effect can be achieved, and the time cost is saved by 50% compared with the original process.

The utility model discloses in, ultrasonic wave generating device 1 with vibrate dull and stereotyped 2 and control through external master controller, master controller respectively with ultrasonic wave generating device 1 with vibrate dull and stereotyped 2 and be connected, through master controller control ultrasonic wave generating device 1 with vibrate dull and stereotyped 2's operating condition to realize going on in order of the short carminative ultrasonic oscillation device work of permeating of whole lithium ion battery electrolyte. It can be understood that, the utility model discloses among the carminative ultrasonic oscillation device of lithium ion battery electrolyte infiltration, according to actual conditions and concrete need, above-mentioned carminative ultrasonic oscillation device of lithium ion battery electrolyte infiltration can not contain total controller, through manual control, does not do the injecing here.

The manufacturing process of the present invention and the advantages of the present invention have been shown and described. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the method of the present invention is described in the above specification without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a vibration device that lithium ion battery electrolyte promotes infiltration exhaust which characterized in that, it includes: bottom plate (7), be located vibration flat board (2) on bottom plate (7) and set up in vibrate damping device between flat board (2) and bottom plate (7), it can install the mounting structure of battery package to vibrate to be provided with on flat board (2), vibrate flat board (2) and be connected with the mechanical vibration source that can drive its vibration.

2. The oscillation device for promoting permeation and exhaust of lithium ion battery electrolyte according to claim 1, wherein one side of the oscillation plate (2) is provided with an ultrasonic wave generating device (1) capable of generating vibration on the oscillation plate (2) through ultrasonic waves.

3. The vibration device for promoting permeation and exhaust of lithium ion battery electrolyte according to claim 2, wherein the other side of the vibration flat plate (2) is provided with a sound wave absorption wall (3) capable of absorbing ultrasonic waves.

4. The oscillation device for promoting permeation and exhaust of lithium ion battery electrolyte according to claim 1, wherein the mechanical vibration source comprises a plurality of mechanical vibrators (5) arranged at corners of the oscillation flat plate (2).

5. The oscillation device for promoting permeation and exhaust of lithium ion battery electrolyte according to claim 4, wherein the oscillation plate (2) is square, the number of the mechanical vibrators (5) is 4, and the 4 mechanical vibrators (5) are respectively arranged at 4 corners of the oscillation plate (2).

6. The oscillation device for promoting permeation and exhaust of lithium ion battery electrolyte according to claim 1, wherein the mounting structure comprises a clamping groove (21) arranged in the middle of the oscillation flat plate (2).

7. The vibration device for promoting permeation and exhaust of lithium ion battery electrolyte according to claim 1, wherein the vibration device comprises a plurality of vibration absorbing springs (6), the bottom plate (7) is provided with a plurality of spring supporting columns (4), the vibration absorbing springs (6) are sleeved on the spring supporting columns (4), and the upper ends of the vibration absorbing springs (6) are connected with the bottom of the vibration flat plate (2).

8. The oscillation device for promoting permeation and exhaust of lithium ion battery electrolyte according to claim 2, wherein the power working frequency of the ultrasonic wave generation device (1) is 30-120 KHz.

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