CN218975543U

CN218975543U - Compatible briquetting of polymer soft package lithium ion battery and infiltration device

Info

Publication number: CN218975543U
Application number: CN202223163740.6U
Authority: CN
Inventors: 余建军; 翟所德
Original assignee: Guangdong Dongtang Intelligent Technology Co ltd
Current assignee: Guangdong Dongtang Intelligent Technology Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-05
Anticipated expiration: 2032-11-25

Abstract

The utility model belongs to the technical field of lithium battery infiltration, and particularly relates to a compatible pressing block and infiltration device of a polymer soft package lithium ion battery. The two pressing plates are arranged on one side of the main plate, and a gap for placing the polymer soft package lithium ion battery is arranged between the pressing plates and the main plate. The two power connection modules are respectively connected to two sides of the main board in a sliding manner and are used for being electrically connected with the polymer soft package lithium ion battery on the main board. When the soft polymer package lithium ion battery is used, the soft polymer package lithium ion battery is placed between the pressing plate and the main board, the power connection end of the soft polymer package lithium ion battery is connected with the power connection module, and the power connection module slides on two sides of the main board to enable the power connection end of the soft polymer package lithium ion battery to be fixedly connected with the power connection module, so that the situation that the soft polymer package lithium ion battery is broken in the formation process, the connection with the power connection module cannot be precharged, and the service life is influenced is avoided.

Description

Compatible briquetting of polymer soft package lithium ion battery and infiltration device

Technical Field

The utility model belongs to the technical field of lithium battery infiltration, and particularly relates to a compatible pressing block of a polymer soft package lithium ion battery and an infiltration device.

Background

The polymer soft package lithium ion battery is only sleeved with a layer of air bag. The aluminum plastic film packaging structure is adopted. The lithium ion battery has the characteristics of high volume specific energy, high mass specific energy, long service life, repeated charging, no pollution and the like, and is widely used in a plurality of fields of digital products, automobile power batteries, energy storage power supplies and the like. The polymer soft-package lithium ion battery adopts an aluminum plastic film, has higher energy density compared with a steel shell battery, is expanding the application range continuously, and is increasing in the field of power batteries for automobiles. The lithium ion battery has no memory effect, but has strong inert property, and can ensure that the best efficiency can be achieved after the lithium ion battery is fully activated. Before the battery leaves the factory, the manufacturer performs activation treatment and pre-charging. This is mainly due to the high energy ratio of the lithium ion battery, which can affect the service life of the polymer soft-pack lithium ion battery or damage the battery if the battery directly enters a fast power-on mode. Meanwhile, the injection is one of key procedures of the lithium ion battery, and uniform infiltration of the electrolyte is important for normal chemical reaction of materials in the battery. The electrolyte is fully infiltrated, so that the normal operation of the battery can be ensured, the effective formation of the battery is ensured, the normal formation of an SEI film is prevented from being influenced due to insufficient local infiltration, and the extreme condition of local lithium precipitation is avoided. Therefore, the polymer soft-package lithium ion battery needs to be subjected to pressure formation treatment before being used, the positive and negative electrode active materials of the lithium ion battery can be activated to perform electrochemical reaction in the pressure formation procedure, and meanwhile, a solid electrolyte interface film (SEI film) is formed on the surface of the negative electrode by the electrolyte film-forming component, so that the reaction of a solvent and the negative electrode active materials is effectively prevented, and lithium ions are allowed to be deintercalated. Therefore, when most manufacturers produce polymer soft package lithium ion batteries, the polymer soft package lithium ion batteries are pressurized and electrified at the same time, so that the production time can be greatly saved, electrodes are generally connected to the pressing blocks, and the electrodes are simultaneously electrified in the process of pressurizing the polymer soft package lithium ion batteries, but because the specifications of the polymer soft package lithium ion batteries are different, the power connection points of the polymer soft package lithium ion batteries are inconsistent, different pressing blocks are needed to be used when the polymer soft package lithium ion batteries with different specifications are electrified and formed, the time and the labor are consumed in the process of changing the pressing blocks, and the labor cost and the time cost are greatly increased.

Disclosure of Invention

The utility model aims to provide a compatible pressing block of a polymer soft package lithium ion battery, which aims to solve the technical problems that when the polymer soft package lithium ion batteries with different specifications are electrified and formed in the prior art, the polymer soft package lithium ion battery needs to be replaced, the time and the labor are consumed in the process of replacing the pressing block, and the labor cost and the time cost are greatly increased.

In order to achieve the above purpose, the embodiment of the utility model provides a compatible pressing block of a polymer soft package lithium ion battery, which comprises a main board, two pressing plates and two power connection modules. The two pressing plates are arranged on one side of the main plate, and a gap for placing the polymer soft package lithium ion battery is arranged between the pressing plates and the main plate. The two power connection modules are respectively connected to two sides of the main board in a sliding manner and are used for being electrically connected with the polymer soft package lithium ion battery on the main board.

Further, the power connection module comprises two power connection heads, two sliding grooves are formed in one side of the main board, and the two power connection heads are respectively arranged on the two sliding grooves in a sliding mode.

Further, one side of the chute is provided with a plurality of positioning holes distributed in a linear array, one side of the electric connector close to the positioning holes is provided with a waist-shaped groove, and the screw penetrates through the waist-shaped groove to be connected with the positioning holes for positioning the electric connector.

Further, the connector comprises a wiring board, a wiring cell, a reset spring and a buffer piece. The wiring board sets up on the spout slidingly, and wiring electricity core sets up in one side of wiring board, and reset spring sets up in the opposite side of wiring board, and wiring board is connected to reset spring's one end, and the bolster is connected to the other end.

Further, two guide grooves are formed in two sides of the buffer member, and guide posts corresponding to the two guide grooves extend from the wiring board to one end of the buffer member.

Further, one end of the buffer piece, which is far away from the wiring board, is provided with a silica gel film.

Further, the lithium ion battery air bag further comprises two limiting parts, wherein a plurality of limiting holes distributed in a linear array are formed in the top end of the main board, the two limiting parts are arranged on the limiting holes, and the limiting parts are located on one side of the polymer soft package lithium ion battery air bag. The limiting piece limits the polymer soft package lithium ion battery air bag.

Further, the limiting piece comprises a base, a support column, two elastic sheets and a limiting spring. The lower extreme of base extends has the spacing post of being connected with spacing hole, and the pillar setting is on the base, and the both sides of base upwards extend has the gusset. One end of the elastic sheet is hinged to the upper end of the support column, and the other end of the elastic sheet is abutted to the inner side of the rib plate. The support column is provided with a through hole, the limiting spring penetrates through the through hole, and two ends of the limiting spring are respectively connected with the two elastic sheets.

Further, connecting portions are arranged on two sides of the main board, and a plurality of connecting holes are formed in the connecting portions.

Further, the infiltration device comprises a polymer soft package lithium ion battery compatible pressing block, a frame and a driving piece, wherein each polymer soft package lithium ion battery compatible pressing block is slidably arranged on the frame, and the driving piece is arranged on one side of the frame and is used for driving each polymer soft package lithium ion battery compatible pressing block to be mutually abutted.

The above technical scheme in the polymer soft package lithium ion battery compatible pressing block provided by the embodiment of the utility model has at least one of the following technical effects:

1. when the soft polymer package lithium ion battery is used, the soft polymer package lithium ion battery is placed between the pressing plate and the main plate, the power connection end of the soft polymer package lithium ion battery is connected with the power connection module, the power connection module slides on two sides of the main plate to enable the power connection end of the soft polymer package lithium ion battery to be fixedly connected with the power connection module, and the situation that the soft polymer package lithium ion battery is broken in the formation process, the connection with the power connection module cannot be precharged, and the service life of the soft polymer package lithium ion battery is influenced is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a front view structure of a compatible pressing block of a polymer soft package lithium ion battery according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a back view structure of a compatible pressing block of a polymer soft package lithium ion battery according to an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of the electrical connector of the compatible pressing block of the polymer soft package lithium ion battery provided by the embodiment of the utility model.

Fig. 4 is a schematic structural diagram of the limiting member of the compatible pressing block of the polymer soft package lithium ion battery provided by the embodiment of the utility model.

Reference numerals: 100. a main board; 110. a chute; 111. positioning holes; 120. a limiting hole; 200. a pressing plate; 300. a power connection module; 310. a power connection head; 311. a waist-shaped groove; 312. a wiring board; 313. a wiring cell; 314. a return spring; 315. a buffer member; 316. a guide groove; 317. a guide post; 318. a silica gel film; 400. a limiting piece; 410. a base; 411. a limit column; 412. rib plates; 420. a support post; 421. a through hole; 430. a spring plate; 440. a limit spring; 500. a connection part; 510. and a connection hole.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, referring to fig. 1 to 4, a polymer soft pack lithium ion battery compatible compact is provided, which includes a main board 100, two pressing boards 200 and two power connection modules 300. The two pressing plates 200 are disposed on one side of the main board 100, and a gap for placing the polymer soft package lithium ion battery is disposed between the pressing plates 200 and the main board 100. The two power connection modules 300 are respectively slidably connected to two sides of the main board 100, and are used for electrically connecting the polymer soft package lithium ion battery on the main board 100. In this embodiment, when in use, the polymer soft package lithium ion battery is placed between the pressing plate 200 and the main board 100, the power connection end of the polymer soft package lithium ion battery is connected with the power connection module 300, and the power connection module 300 slides on two sides of the main board 100 to be at the optimal connection position of the power connection end of the polymer soft package lithium ion battery, so that the power connection end of the polymer soft package lithium ion battery can be tightly connected with the power connection module 300, and the situation that the connection between the polymer soft package lithium ion battery and the power connection module 300 breaks in the formation process, and the pre-charging cannot be performed, thereby influencing the service life of the polymer soft package lithium ion battery is avoided.

Specifically, referring to fig. 1 to 4, the power connection module 300 includes two power connection terminals 310, one side of the main board 100 is provided with two sliding slots 110, and the two power connection terminals 310 are respectively slidably disposed on the two sliding slots 110. In this embodiment, the two connectors 310 respectively correspond to the positive electrode and the negative electrode of the power supply, and the two connectors 310 respectively slide on the two sliding grooves 110, so as to avoid the occurrence of short circuit caused by contact between the two connectors 310, and thus safety accidents.

Specifically, referring to fig. 1 to 4, a plurality of positioning holes 111 are arranged on one side of the chute 110 in a linear array, a waist-shaped slot 311 is arranged on one side of the connector 310 close to the positioning holes 111, and a screw penetrates through the waist-shaped slot 311 to be connected with the positioning holes 111 for positioning the connector 310. In this embodiment, a plurality of positioning holes 111 are arranged on one side of the chute 110 in a linear array, a waist-shaped slot 311 is arranged on one side of the connector 310 close to the positioning holes 111, and a screw penetrates through the waist-shaped slot 311 to connect with the positioning holes 111, so that the connector 310 is fixed by the screw after the connector 310 moves to a proper position on the chute 110, so that the connector 310 is prevented from sliding again.

Specifically, referring to fig. 1 to 4, the connector 310 includes a wiring board 312, a wiring core 313, a return spring 314, and a buffer 315. The wiring board 312 is slidably disposed on the chute 110, the wiring cell 313 is disposed on one side of the wiring board 312, the return spring 314 is disposed on the other side of the wiring board 312, one end of the return spring 314 is connected to the wiring board 312, and the other end is connected to the buffer 315. In this embodiment, the buffer member 315 is used to abut against the wiring board 312 on the next polymer soft package lithium ion battery compatible pressing block, so as to avoid the direct collision between the wiring board 312 and the motherboard 100, which results in the damage of the wiring board 312.

Specifically, referring to fig. 1 to 4, two guide grooves 316 are provided at both sides of the buffer 315, and a guide post 317 corresponding to the two guide grooves 316 extends from the terminal plate 312 toward one end of the buffer 315. In this embodiment, two guide grooves 316 are disposed on two sides of the buffer member 315, and guide posts 317 corresponding to the two guide grooves 316 extend from the wiring board 312 to one end of the buffer member 315, so that the buffer member 315 moves in the direction of the guide posts 317, and the buffer member 315 is prevented from being offset, which results in direct collision between the wiring board 312 and the motherboard 100.

Specifically, referring to fig. 1 to 4, a silicone rubber film 318 is disposed at an end of the buffer member 315 away from the wiring board 312. In this embodiment, the end of the buffer member 315 far away from the wiring board 312 is provided with the silica gel film 318, and the silica gel film 318 can effectively increase the buffering force, so as to avoid the direct collision between the wiring board 312 and the motherboard 100, and better protect the wiring board 312.

Specifically, referring to fig. 1 to 4, the lithium ion battery air bag further comprises two limiting members 400, wherein the top end of the main board 100 is provided with a plurality of limiting holes 120 distributed in a linear array, the two limiting members 400 are arranged on the limiting holes 120, and the limiting members 400 are positioned at one side of the polymer soft package lithium ion battery air bag. The limiting member 400 limits the polymer soft package lithium ion battery air bag. In this embodiment, when the polymer soft package lithium ion battery is charged, the air bag of the polymer soft package lithium ion battery will expand, and the limiting member 400 limits the air bag of the polymer soft package lithium ion battery at this time, so as to avoid the air bag from shifting.

Specifically, referring to fig. 1 to 4, the limiting member 400 includes a base 410, a support 420, two elastic sheets 430, and a limiting spring 440. The lower end of the base 410 extends to form a limiting column 411 connected with the limiting hole 120, the supporting column 420 is arranged on the base 410, and rib plates 412 extend upwards from two sides of the base 410. One end of the elastic sheet 430 is hinged to the upper end of the support column 420, and the other end of the elastic sheet 430 abuts against the inner side of the rib plate 412. The supporting column 420 is provided with a through hole 421, the limit spring 440 passes through the through hole 421, and two ends of the limit spring 440 are respectively connected with the two elastic sheets 430. In this embodiment, when the air bag is inflated, the air bag abuts against the elastic sheet 430, so that the air bag can be better limited, and the elastic sheet 430 and the limiting spring 440 have a certain elasticity, so that the air bag is prevented from being broken due to the limitation of the limiting piece 400.

Specifically, referring to fig. 1 to 4, the main board 100 is provided with a connection part 500 at both sides thereof, and the connection part 500 is provided with a plurality of connection holes 510. In this embodiment, the connection hole 510 on the connection portion 500 is used for connecting with a rack of the polymer soft package lithium ion battery infiltration device, so that the compatible pressing blocks of the polymer soft package lithium ion batteries are located on a straight line, and extrusion formation is more convenient.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A compatible briquetting of soft packet of lithium ion battery of polymer, its characterized in that: the device comprises a main board, two pressing plates and two power-on modules; the two pressing plates are arranged on one side of the main board, and a gap for placing the polymer soft package lithium ion battery is arranged between the pressing plates and the main board; the two power receiving modules are respectively connected to two sides of the main board in a sliding manner and are used for being electrically connected with the polymer soft package lithium ion battery on the main board.

2. The polymer soft pack lithium ion battery compatible compact of claim 1, wherein: the power connection module comprises two power connection heads, two sliding grooves are formed in one side of the main board, and the two power connection heads are respectively arranged on the two sliding grooves in a sliding mode.

3. The polymer soft pack lithium ion battery compatible compact of claim 2, wherein: one side of the sliding groove is provided with a plurality of positioning holes distributed in a linear array, one side of the electric connector, which is close to the positioning holes, is provided with a waist-shaped groove, and a screw penetrates through the waist-shaped groove to be connected with the positioning holes for positioning the electric connector.

4. The polymer soft pack lithium ion battery compatible compact of claim 2, wherein: the power connector comprises a wiring board, a wiring electric core, a reset spring and a buffer piece; the wiring board is arranged on the sliding groove in a sliding mode, the wiring battery core is arranged on one side of the wiring board, the reset spring is arranged on the other side of the wiring board, one end of the reset spring is connected with the wiring board, and the other end of the reset spring is connected with the buffer piece.

5. The polymer soft pack lithium ion battery compatible compact of claim 4, wherein: two guide grooves are formed in two sides of the buffer piece, and guide posts corresponding to the two guide grooves extend from the wiring board to one end of the buffer piece.

6. The polymer soft pack lithium ion battery compatible compact of claim 4, wherein: one end of the buffer piece, which is far away from the wiring board, is provided with a silica gel film.

7. The polymer soft pack lithium ion battery compatible compact of claim 1, wherein: the lithium ion battery soft package comprises a main board, and is characterized by further comprising two limiting pieces, wherein the top end of the main board is provided with a plurality of limiting holes distributed in a linear array, the two limiting pieces are arranged on the limiting holes, and the limiting pieces are positioned on one side of the polymer soft package lithium ion battery air bag; and the limiting piece limits the polymer soft package lithium ion battery air bag.

8. The polymer soft pack lithium ion battery compatible compact of claim 7, wherein: the limiting piece comprises a base, a support column, two elastic sheets and a limiting spring; the lower end of the base is extended with a limit column connected with the limit hole, the support column is arranged on the base, and two sides of the base are extended upwards with rib plates; one end of the elastic sheet is hinged to the upper end of the support column, and the other end of the elastic sheet is abutted to the inner side of the rib plate; the support column is provided with a through hole, the limit spring penetrates through the through hole, and two ends of the limit spring are respectively connected with two elastic sheets.

9. The polymer soft pack lithium ion battery compatible compact of claim 1, wherein: the two sides of the main board are provided with connecting parts, and the connecting parts are provided with a plurality of connecting holes.

10. An infiltration device, characterized in that: the device comprises a plurality of polymer soft package lithium ion battery compatible pressing blocks as claimed in any one of claims 1 to 9, and further comprises a frame and a driving piece, wherein each polymer soft package lithium ion battery compatible pressing block is slidably arranged on the frame, and the driving piece is arranged on one side of the frame and is used for driving each polymer soft package lithium ion battery compatible pressing block to mutually abut.