CN217086659U

CN217086659U - Lithium ion soft package battery packaging end socket device

Info

Publication number: CN217086659U
Application number: CN202123440757.7U
Authority: CN
Inventors: 黄立伟; 黄高坚; 陈志勇
Original assignee: Guangdong Mic Power New Energy Co Ltd
Current assignee: Guangdong Mic Power New Energy Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-29
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a lithium ion soft package battery packaging end socket device, which comprises a lower packaging assembly and an upper packaging assembly, wherein the lower packaging assembly comprises a lower end socket and a lower bulge; the upper packaging assembly comprises an upper end enclosure and an upper bulge, a second empty groove is formed in the upper end enclosure, and the upper bulge is arranged in the second empty groove; the upper end enclosure is pressed on the lower end enclosure, so that a glue passing channel is arranged between the upper bulge and the lower bulge, and the glue passing channel is respectively communicated with the first empty groove and the second empty groove. The utility model relates to a lithium ion laminate polymer battery encapsulation head device through being provided with the gluey passageway in packaging structure for can effectively avoid the problem of the encapsulation position undersize damage plastic-aluminum membrane in the middle of the two grooves, also solve the too little big problem of fine wearing and tearing of encapsulation position moreover, improve lithium ion battery's life, improve the stability of product.

Description

Lithium ion soft package battery packaging end socket device

Technical Field

The utility model relates to a laminate polymer battery field especially relates to a lithium ion laminate polymer battery encapsulation head device.

Background

A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: during charging, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true for discharge. Lithium batteries are classified into lithium batteries and lithium ion batteries. Lithium ion batteries are used in mobile phones and notebook computers, and are commonly called as lithium batteries. The battery generally adopts a material containing lithium element as an electrode, and is a representative of modern high-performance batteries. The real lithium battery is rarely applied to daily electronic products due to high danger.

At present, the soft package and the hard package of the lithium ion soft package battery adopt two processes, the soft package has lower requirements on the control of equipment and products, but the consistency and the stability of the package are poorer than those of the hard package; the hard sealing process is most widely applied to the existing soft package products; however, when the existing hard seal end socket is used for packaging two tabs with the tab center distance being less than 8mm, the packaging position is too small, the damage to an aluminum plastic film is large, the packaging position is too small, the abrasion is large, the service life is greatly reduced, the product stability is also poor, and the packaging is carried out in a through groove mode, so that the positions where tab glue does not overlap can have gaps, and the sealing is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, provide a lithium ion laminate polymer battery encapsulation head device, through being provided with in packaging structure and gluing the passageway for can effectively avoid the problem of the encapsulation position undersize damage plastic-aluminum membrane in the middle of the two grooves, also solved the too little big problem of thin wearing and tearing of encapsulation position moreover, improve lithium ion battery's life, improve the stability of product.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a lithium ion laminate polymer battery encapsulation head device which characterized in that includes: a lower packaging component and an upper packaging component,

the lower packaging assembly comprises a lower end enclosure and a lower bulge, a first empty groove is formed in the lower end enclosure, and the lower bulge is arranged in the first empty groove;

the upper packaging assembly comprises an upper end enclosure and an upper bulge, a second empty groove is formed in the upper end enclosure, and the upper bulge is arranged in the second empty groove;

the upper end enclosure is pressed on the lower end enclosure in a pressing mode, so that a glue passing channel is formed between the upper protrusion and the lower protrusion, and the glue passing channel is communicated with the first empty groove and the second empty groove respectively.

Preferably, the lower protrusion divides the first empty groove into a first lower pole ear region and a second lower pole ear region.

Preferably, the upper protrusion divides the second empty groove into a first upper pole ear area and a second upper pole ear area.

Preferably, after the upper end enclosure is pressed on the lower end enclosure, the first lower lug area is communicated with the first upper lug area to form a first lug cavity;

the second lower lug area is communicated with the second upper lug area to form a second lug cavity;

the glue passing channel is communicated with the first polar ear cavity and the second polar ear cavity respectively.

Preferably, after the upper end socket is pressed on the lower end socket, the vertical distance between the upper bulge and the lower bulge is 0.03 mm-0.30 mm.

Preferably, the upper packaging assembly further comprises a first limiting block, the first limiting block is arranged on the upper sealing head, and the lower packaging assembly further comprises a second limiting block, and the second limiting block is arranged on the lower sealing head.

Preferably, the upper packaging assembly further comprises a first auxiliary heating block, the first auxiliary heating block is arranged on the upper end enclosure, the lower packaging assembly further comprises a second auxiliary heating block, and the second auxiliary heating block is arranged on the lower end enclosure.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model relates to a lithium ion laminate polymer battery encapsulation head device through being provided with the gluey passageway in packaging structure for can effectively avoid the problem of the encapsulation position undersize damage plastic-aluminum membrane in the middle of the two grooves, also solve the too little big problem of fine wearing and tearing of encapsulation position moreover, improve lithium ion battery's life, improve the stability of product. Meanwhile, the problem that the gaps at the positions where the tab glue is not overlapped are not sealed can be solved.

Drawings

Fig. 1 is a schematic structural diagram of a lower end enclosure of a lithium ion soft package battery packaging end enclosure device;

fig. 2 is a schematic partial structure diagram of the lithium ion soft package battery packaging end socket device during specific assembly.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 and 2, a lithium ion soft package battery packaging end socket device is characterized by comprising: a lower package assembly 100 and an upper package assembly 200.

Referring to fig. 2, the lower package assembly 100 includes a lower head 110 and a lower protrusion 120, the lower head 110 has a first hollow groove 130, and the lower protrusion 120 is disposed in the first hollow groove 130. The upper package assembly 200 includes an upper cap 210 and an upper protrusion 220, the upper cap 210 is provided with a second empty groove 230, and the upper protrusion 220 is disposed in the second empty groove 230. It should be noted that the lower head 110 and the upper head 210 are used for packaging the lithium ion battery; the lower protrusion 120 and the upper protrusion 220 are used for realizing an adhesive passage, so that the aluminum-plastic film is not damaged during packaging.

Referring to fig. 2, the upper sealing head 210 is pressed on the lower sealing head 110, so that a glue passing channel 101 is formed between the upper protrusion 220 and the lower protrusion 120, and the glue passing channel 101 is respectively communicated with the first empty groove 130 and the second empty groove 230. Therefore, by arranging the gluing channel and adopting a mode between the sub-grooves and the through grooves, the stress degree of the middle packaging position is reduced by reducing the height of the packaging position between the two grooves, the situation that the packaging position between the two grooves is too small and has large damage to the aluminum-plastic film is effectively avoided, the packaging position is too small and has large abrasion, the service life is greatly reduced, and the risk of product stability is also reduced; meanwhile, the problem that the through groove is not sealed due to the fact that gaps at positions where tab glue is not overlapped is solved.

Referring to fig. 2, the lower protrusion divides the first cavity 130 into a first lower ear region 131 and a second lower ear region 132. The upper protrusion divides the second empty groove 230 into a first upper tab region 231 and a second upper tab region 232. In this way, the first lower tab region 131 and the first upper tab region 231 are configured to receive one of the tabs, and the second lower tab region 132 and the second upper tab region 232 are configured to receive the other tab.

It should be noted that, after the upper end enclosure is pressed on the lower end enclosure, the first lower lug area is communicated with the first upper lug area to form a first lug cavity; the second lower lug area is communicated with the second upper lug area to form a second lug cavity; the glue passing channel is communicated with the first polar ear cavity and the second polar ear cavity respectively. So, through setting up first utmost point ear chamber and second utmost point ear chamber, can place two utmost point ears respectively to through being provided with in packaging structure and gluing the passageway, make the problem that can effectively avoid the encapsulation position undersize in the middle of two grooves and harm the plastic-aluminum membrane, also solved the encapsulation position too little problem that fine wearing and tearing are big moreover, improved lithium ion battery's life, improve the stability of product. Meanwhile, the problem that the gaps at the positions where the tab glue is not overlapped are not sealed can be solved.

In this embodiment, after the upper end socket is pressed on the lower end socket, the vertical distance between the upper protrusion and the lower protrusion is 0.03 mm-0.30 mm. Referring to fig. 2, the vertical distance D between the upper protrusion and the lower protrusion ensures a certain distance, so that the upper protrusion and the lower protrusion can be prevented from damaging the aluminum-plastic film.

Referring to fig. 1, the lower package assembly 100 further includes a second limiting block 140 disposed on the lower head. The lower packaging assembly further comprises a second auxiliary heating block 150, and the second auxiliary heating block is arranged on the lower end socket. The upper packaging assembly further comprises a first limiting block, and the first limiting block is arranged on the upper sealing head. The upper packaging assembly further comprises a first auxiliary heating block, and the first auxiliary heating block is arranged on the upper sealing head. Therefore, the upper sealing head and the lower sealing head are both provided with limiting blocks, the thickness of each limiting block is 0.06-0.09 mm higher than the sealing seal of the sealing head, and the limiting blocks play a role in preventing the aluminum-plastic film from being over-sealed in the packaging process; the upper end enclosure and the lower end enclosure are both provided with auxiliary heating blocks, the auxiliary heating blocks play a role in heating the tabs, rapidly increasing the packaging temperature and stabilizing the packaging temperature.

Furthermore, the first limiting block and the second limiting block are provided with a plurality of limiting blocks, and the limiting blocks play a limiting role and an over-sealing prevention role.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a lithium ion laminate polymer battery encapsulation head device which characterized in that includes:

2. The soft-package lithium ion battery packaging end socket device according to claim 1, wherein the lower protrusion divides the first empty groove into a first lower pole ear region and a second lower pole ear region.

3. The lithium-ion soft package battery packaging end socket device according to claim 2, wherein the upper protrusion divides the second empty groove into a first upper pole ear region and a second upper pole ear region.

4. The packaging seal head device for the lithium-ion soft package battery according to claim 3, wherein after the upper seal head is pressed on the lower seal head, the first lower lug area is communicated with the first upper lug area to form a first lug cavity;

5. The sealing head device for packaging the lithium-ion soft package battery according to claim 1, wherein after the upper sealing head is pressed on the lower sealing head, the vertical distance between the upper protrusion and the lower protrusion is 0.03 mm-0.30 mm.

6. The soft package lithium ion battery packaging sealing head device of claim 1, wherein the upper packaging assembly further comprises a first limiting block, the first limiting block is arranged on the upper sealing head, the lower packaging assembly further comprises a second limiting block, and the second limiting block is arranged on the lower sealing head.

7. The soft-package lithium ion battery packaging end socket device according to claim 1, wherein the upper packaging assembly further comprises a first auxiliary heating block, the first auxiliary heating block is arranged on the upper end socket, and the lower packaging assembly further comprises a second auxiliary heating block, and the second auxiliary heating block is arranged on the lower end socket.