CN213460002U

CN213460002U - Electrode lug

Info

Publication number: CN213460002U
Application number: CN202022613534.5U
Authority: CN
Inventors: 张华生
Original assignee: Dongguan Huachuang New Power Co ltd
Current assignee: Dongguan Huachuang New Power Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-06-15
Anticipated expiration: 2030-11-12

Abstract

The utility model discloses a tab, including plastic sheet, sheetmetal and film, be provided with on the plastic sheet and cut apart the strip, and be connected with the sheetmetal on the plastic sheet to the plastic sheet back is provided with the fixed strip, installs the sheetmetal in the fixed strip moreover, be connected with the film on the sheetmetal, and the film the superiors are provided with the protection film to be provided with the modified pp layer of hydrophilic plasticity below the protection film, be provided with the casing ply below the modified pp layer of hydrophilic plasticity in addition, be provided with the modified pp layer of hydrophilic metal below the casing ply, and the modified pp layer of hydrophilic metal is connected with the sheetmetal. This utmost point ear, film are the four-layer structure that constitutes by protection film, the modified pp layer of hydrophilic plasticity, casing layer and the modified pp layer of hydrophilic metal, and the three layer construction that the modified pp layer of hydrophilic plasticity, casing layer and the modified pp layer of hydrophilic metal hot pressing constitute has obvious difference in temperature between, has guaranteed the encapsulation reliability between utmost point ear glue and the plastic-aluminum membrane, and the protection film adopts the similar material of plastic-aluminum membrane inlayer, has wider heat-seal temperature.

Description

Electrode lug

Technical Field

The utility model relates to a digital technical field specifically is a utmost point ear.

Background

The tab is a raw material of a lithium ion polymer battery product, namely a metal conductor leading out positive and negative electrodes from a battery core, and is formed by compounding a film and a metal band, wherein the film is an insulated part on the tab and has the function of preventing short circuit between the metal band and an aluminum plastic film during battery packaging, and the tab is sealed and bonded with the aluminum plastic film by heating in a hot melting way during packaging to prevent liquid leakage.

Common utmost point ear in the existing market generally needs the instrument to separate when using, operates inconveniently, and simultaneously, common utmost point ear film intermediate level comprises the non-woven fabrics, and inside moisture can be followed the non-woven fabrics and introduced the battery through capillary infiltration for the battery bloated, and the easy layering of non-woven fabrics, hot pressing effect is not good, to above-mentioned problem, carries out the innovative design on the basis of original utmost point ear.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tab to solve common tab in the existing market that proposes in the above-mentioned background art, need the instrument to separate usually when using, the operation is inconvenient, and simultaneously, common tab film intermediate level comprises the non-woven fabrics, and inside moisture can be introduced the battery through capillary infiltration in the non-woven fabrics, makes the battery bloated, and the easy layering of non-woven fabrics, problem that the hot pressing effect is not good.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a tab, includes plastic sheet, sheetmetal and film, be provided with on the plastic sheet and cut apart the strip, and be connected with the sheetmetal on the plastic sheet to the plastic sheet back is provided with the fixed strip, installs the sheetmetal in the fixed strip moreover, be connected with the film on the sheetmetal, and the film the superiors are provided with the protection film to be provided with the modified pp layer of hydrophilic plasticity below the protection film, be provided with the casing layer below the modified pp layer of hydrophilic plasticity in addition, be provided with the modified pp layer of hydrophilic metal below the casing layer, and the modified pp layer of hydrophilic metal is connected with the sheetmetal.

Preferably, the dividing strips are symmetrically distributed about the longitudinal central axis of the metal sheet, the longitudinal sections of the dividing strips are in a sawtooth shape, and the dividing strips are equidistantly distributed on the plastic sheet.

Preferably, the width of the fixing strip is greater than that of the metal sheet, two ends of the fixing strip protrude, the metal sheet and the fixing strip are connected in a clamping mode, and the fixing strips are distributed on the back of the plastic sheet at equal intervals.

Preferably, the films are symmetrically distributed about the metal sheet, and the width of the films is greater than that of the metal sheet when the battery is packaged.

Preferably, the film is of a T-shaped structure, the film is of a four-layer structure consisting of a protective film, a plastic-affinity modified pp layer, a framework layer and a metal-affinity modified pp layer, the metal-affinity modified pp layer is connected with the metal sheet in an attaching mode, and the width of the protective film is larger than the widths of the other three layers.

Compared with the prior art, the beneficial effects of the utility model are that: the electrode tab is provided with a plurality of electrode lugs,

1. the cutting strips are symmetrically distributed about the longitudinal central axis of the metal sheet, the longitudinal sections of the cutting strips are in a zigzag shape, and the cutting strips are equidistantly distributed on the plastic sheet 1, so that the polar lugs can be conveniently stored through the plastic sheet, and workers can split the polar lugs by tearing the cutting strips, so that the polar lugs can be conveniently taken by the workers;

2. the width of the fixing strip is larger than that of the metal sheet, two ends of the fixing strip protrude, the metal sheet is connected with the fixing strip in a clamping mode, a worker can separate the metal sheet from the fixing strip by pressing the metal sheets on two sides of the rubber sheet, the metal sheet of the lug is convenient to clamp into the fixing strip during production, the position of the metal sheet is fixed, the worker can conveniently take the lug for use, and the fixing strip is favorable for protecting the metal sheet from being bent;

3. the film is a four-layer structure formed by a protective film, a plastic-philic modified PP layer, a framework layer and a metal-philic modified PP layer, and an obvious temperature difference is formed among three-layer structures formed by hot pressing of the plastic-philic modified PP layer, the framework layer and the metal-philic modified PP layer, so that the packaging operability is stronger, the packaging reliability between the tab adhesive and the aluminum plastic film is ensured, and the protective film is made of a material similar to the inner layer of the aluminum plastic film and has a wider heat sealing temperature.

Drawings

FIG. 1 is a schematic view of the overall front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the overall back view structure of the present invention;

FIG. 3 is a schematic diagram of the side view cross-sectional structure of the film of the present invention;

fig. 4 is a schematic view of the side-view profile structure of the connection between the metal sheet and the film of the present invention.

In the figure: 1. a plastic sheet; 2. cutting the strips; 3. a fixing strip; 4. a metal sheet; 5. a film; 6. a protective film; 7. a plastically-receptive modified pp layer; 8. a framework layer; 9. a metallophilic modified pp layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a tab, including plastic sheet 1, sheetmetal 4 and film 5, be provided with on the plastic sheet 1 and cut apart strip 2, and be connected with sheetmetal 4 on the plastic sheet 1, and the 1 back of plastic sheet is provided with fixed strip 3, and install sheetmetal 4 in the fixed strip 3, be connected with film 5 on the

sheetmetal

4, and 5 the superiors of film are provided with protection film 6, and be provided with the modified pp layer of hydrophilic plasticity 7 below the protection film 6, and be provided with skeleton layer 8 below the modified pp layer of hydrophilic plasticity 7, be provided with the modified pp layer of hydrophilic metal 9 below the skeleton layer 8, and the modified pp layer of hydrophilic metal 9 is connected with sheetmetal 4.

The cutting strips 2 are symmetrically distributed about the longitudinal central axis of the metal sheet 4, the longitudinal sections of the cutting strips 2 are in a sawtooth shape, and the cutting strips 2 are distributed on the plastic sheet 1 at equal distances, so that the polar lugs can be conveniently stored through the plastic sheet 1, and the polar lugs can be detached by tearing the cutting strips 2, thereby being beneficial to taking the polar lugs by workers;

the width of the fixing strip 3 is larger than that of the metal sheet 4, two ends of the fixing strip 3 protrude, the metal sheet 4 is connected with the fixing strip 3 in a clamping mode, the fixing strips 3 are distributed on the back of the plastic sheet 1 at equal intervals, the metal sheet 4 is conveniently clamped into the fixing strip 3, the position of the metal sheet 4 is fixed, and meanwhile the fixing strip 3 is beneficial to protecting the metal sheet 4 from being bent;

the films 5 are symmetrically distributed relative to the metal sheet 4, and the width of the films 5 is larger than that of the metal sheet 4, so that the films 5 can prevent the metal sheet 4 and the aluminum-plastic film from short circuit when the battery is packaged;

the film 5 is a T-shaped structure, the film 5 is a four-layer structure consisting of a protective film 6, a plastic-philic modified pp layer 7, a framework layer 8 and a metal-philic modified pp layer 9, the metal-philic modified pp layer 9 is connected with the metal sheet 4 in a bonding mode, the width of the protective film 6 is larger than the width of other three layers, and the three-layer structure consisting of the plastic-philic modified pp layer 7, the framework layer 8 and the metal-philic modified pp layer 9 is hot-pressed to have obvious temperature difference, so that the packaging operability is stronger, and the protective film 6 is made of a material similar to an inner layer of an aluminum plastic film and has wider heat sealing temperature.

The working principle is as follows: according to fig. 1-4, the tab is placed on the plastic sheet 1, so that the tab is clamped on the fixing strip 3, the film 5 on the tab has a four-layer structure, the parent metal modified pp layer 9, the framework layer 8 and the parent plastic modified pp layer 7 form tab glue through hot pressing, the parent metal modified pp layer 9 is attached to the metal sheet 4, the protective film 6 is arranged on the parent plastic modified pp layer 7 to protect the tab glue, when the tab is taken out, a worker can tear the dividing strip 2 and press the metal sheets 4 on two sides of the film 5, so that the metal sheets 4 can slide out of the fixing strip 3, which is the working process of the whole device, and the content which is not described in detail in the description belongs to the prior art known to the skilled worker.

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. A pole lug comprises a plastic sheet (1), a metal sheet (4) and a film (5), and is characterized in that: be provided with on plastic sheet (1) and cut apart strip (2), and be connected with sheetmetal (4) on plastic sheet (1) to plastic sheet (1) back is provided with fixed strip (3), installs sheetmetal (4) in fixed strip (3) moreover, be connected with film (5) on sheetmetal (4), and film (5) the superiors are provided with protection film (6), and be provided with hydrophilic plasticity below protection film (6) and modify pp layer (7), be provided with skeleton layer (8) below hydrophilic plasticity modification pp layer (7) moreover, be provided with hydrophilic metal modification pp layer (9) below skeleton layer (8), and hydrophilic metal modification pp layer (9) are connected with sheetmetal (4).

2. A tab as claimed in claim 1, wherein: the cutting strips (2) are symmetrically distributed about the longitudinal central axis of the metal sheet (4), the longitudinal sections of the cutting strips (2) are in a sawtooth shape, and the cutting strips (2) are equidistantly distributed on the plastic sheet (1).

3. A tab as claimed in claim 1, wherein: the width of the fixing strip (3) is larger than that of the metal sheet (4), two ends of the fixing strip (3) protrude, the metal sheet (4) is connected with the fixing strip (3) in a clamping mode, and the fixing strips (3) are distributed on the back of the plastic sheet (1) at equal intervals.

4. A tab as claimed in claim 1, wherein: the rubber sheets (5) are symmetrically distributed relative to the metal sheet (4), and the width of the rubber sheets (5) is larger than that of the metal sheet (4).

5. A tab as claimed in claim 1, wherein: the film (5) is of a T-shaped structure, the film (5) is of a four-layer structure consisting of a protective film (6), a plastic-affinity modified pp layer (7), a framework layer (8) and a metal-affinity modified pp layer (9), the metal-affinity modified pp layer (9) is connected with the metal sheet (4) in a fitting mode, and the width of the protective film (6) is larger than the widths of other three layers.