CN220724030U

CN220724030U - Multilayer composite structure battery protection adhesive tape

Info

Publication number: CN220724030U
Application number: CN202322441412.6U
Authority: CN
Inventors: 周海森; 古思鹏; 刘华坤; 余德疆
Original assignee: Crown New Materials Technology Co ltd
Current assignee: Crown New Materials Technology Co ltd
Priority date: 2023-09-08
Filing date: 2023-09-08
Publication date: 2024-04-05
Anticipated expiration: 2033-09-08

Abstract

The utility model discloses a multi-layer composite structure battery protection adhesive tape, which comprises an adhesive tape body, wherein the adhesive tape body comprises a release film layer, a first adhesive layer, a first substrate layer, a second adhesive layer, a second substrate layer, a third adhesive layer and a third substrate layer which are sequentially laminated, and the thicknesses of the first substrate layer, the second substrate layer and the third substrate layer are respectively and independently selected from 15-75 mu m. Under the condition of ensuring that the whole thickness of the base material is unchanged, the adhesive tape divides a thicker base material into three layers of base materials with thinner thickness, and each base material layer and the adhesive layer are sequentially arranged in a laminated mode at intervals, so that the whole softness of the adhesive tape can be effectively improved on the basis of ensuring the strength of the adhesive tape, the folded edge of the adhesive tape is not easy to warp when the adhesive tape is wrapped up in a battery, and the adhesive property is obviously improved.

Description

Multilayer composite structure battery protection adhesive tape

Technical Field

The utility model relates to the technical field of adhesive tapes, in particular to a battery protection adhesive tape with a multilayer composite structure.

Background

With the gradual expansion of new energy automobile markets, the installed scale of the battery is obviously increased. At present, the battery protection adhesive tapes are divided into a plurality of battery protection adhesive tapes according to the use scene of the battery in the market, mainly comprise battery outer wrapping adhesive tapes, battery core wrapping adhesive tapes, tab protection adhesive tapes and the like, and have different functional requirements for the adhesive tapes of different application scenes.

The adhesive tape for battery outer wrapping in the current market is not planar at the edge folding position, so that the adhesive tape is poor in adhesion in the battery edge wrapping process, and is easy to tilt to influence the adhesion process. Therefore, there is a need to improve the flexibility of the adhesive tape, but if the flexibility is improved so as to reduce the thickness of the adhesive tape, the puncture strength of the adhesive tape is lowered, and the protective effect of the adhesive tape is affected. For this reason, it is required to provide a multi-layered composite structure battery protection tape to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a battery protection adhesive tape with a multilayer composite structure, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a multilayer composite construction battery protection sticky tape, includes the sticky tape body, the sticky tape body is including the range upon range of from membranous layer, first adhesive layer, first substrate layer, second adhesive layer, second substrate layer, third adhesive layer and the third substrate layer that sets up in proper order, the thickness of first substrate layer, second substrate layer and third substrate layer is independently selected from 15-75 mu m respectively.

Preferably, the thickness of the first, second and third substrate layers is independently selected from 23-38 μm.

Further preferably, the thicknesses of the first, second and third substrate layers are each independently selected from 28-32 μm.

Further, the first adhesive layer, the second adhesive layer and the third adhesive layer are respectively and independently selected from one of acrylic adhesive and silica gel.

Preferably, the first adhesive layer, the second adhesive layer and the third adhesive layer are respectively and independently selected from acrylic adhesive.

Further, the thicknesses of the first adhesive layer, the second adhesive layer and the third adhesive layer are respectively and independently selected from 10-45 mu m.

Preferably, the thickness of the first adhesive layer is 25-30 μm.

Preferably, the thickness of the second adhesive layer and the third adhesive layer are independently selected from 15-25 μm.

Further, the thickness of the release film layer is 23-75 μm, preferably 23-38 μm.

Further, the first substrate layer, the second substrate layer and the third substrate layer are all made of transparent PET materials.

Compared with the prior art, the utility model has the beneficial effects that:

according to the multi-layer composite structure battery protection adhesive tape, under the condition that the overall thickness of a base material is unchanged, a thicker base material is divided into three layers of base materials with thinner thickness, and the base material layers and the adhesive layers are sequentially arranged in a stacked mode at intervals, so that the overall softness of the adhesive tape can be effectively improved on the basis of ensuring the strength of the adhesive tape, the folded edge is not easy to warp when the adhesive tape wraps a battery, and the adhesive property is obviously improved; and the adhesive tape is divided into a multi-layer structure, the thickness of single-layer glue is reduced, and glue overflow is not easy to occur during die cutting.

Drawings

Fig. 1 is a schematic view of the adhesive tape structure according to the present utility model.

In the figure: 1. a release film layer; 2. a first adhesive layer; 3. a first substrate layer; 4. a second adhesive layer; 5. a second substrate layer; 6. a third adhesive layer; 7. and a third substrate layer.

Detailed Description

In the description of the present utility model, it should be understood that 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 number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, the battery protection tape with a multilayer composite structure in the utility model comprises a tape body, wherein the tape body comprises a release film layer 1, a first adhesive layer 2, a first substrate layer 3, a second adhesive layer 4, a second substrate layer 5, a third adhesive layer 6 and a third substrate layer 7 which are sequentially laminated, and the thicknesses of the first substrate layer 3, the second substrate layer 5 and the third substrate layer 7 are respectively and independently selected from 15-75 μm, preferably 23-38 μm, and more preferably 28-32 μm.

The first adhesive layer, the second adhesive layer and the third adhesive layer are respectively and independently selected from one of acrylic adhesive and silica gel, and are preferably acrylic adhesive. Because the acrylic adhesive has better adhesive effect, excellent temperature resistance, high curing speed and better flexibility, the acrylic adhesive is selected as the adhesive layer in the scheme.

The thicknesses of the first adhesive layer, the second adhesive layer and the third adhesive layer are independently selected from 10 to 45 μm, the thickness of the first adhesive layer is preferably 25 to 30 μm, and the thickness of the second adhesive layer and the third adhesive layer is independently selected from 15 to 25 μm. The thickness of the first adhesive layer is slightly thicker than that of the other two adhesive layers in the preferred range, because the first adhesive layer is adhered to the surface of an object to be adhered after the release film layer is torn off in actual use, and has certain adhesive force, so that the adhesive with certain thickness is needed; while the other two adhesive layers are separated by the substrate, if too thick, there is a risk of glue overflow during die cutting.

In addition, the thickness of the release film layer is 23-75 μm, preferably 23-38 μm.

The first substrate layer, the second substrate layer and the third substrate layer are all made of transparent PET materials. Generally, PET is inexpensive and has excellent impact resistance and folding resistance; the transparent adhesive tape is convenient for visually observing the situation of the wrapped battery, and can not be shielded, so that the situation of breakage or liquid leakage of the battery is convenient for personnel to overhaul.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A multilayer composite construction battery protection sticky tape which characterized in that: the adhesive tape comprises an adhesive tape body, wherein the adhesive tape body comprises a release film layer, a first adhesive layer, a first substrate layer, a second adhesive layer, a second substrate layer, a third adhesive layer and a third substrate layer which are sequentially laminated, and the thicknesses of the first substrate layer, the second substrate layer and the third substrate layer are respectively and independently selected from 15-75 mu m.

2. The multi-layer composite structured battery protection tape according to claim 1, wherein: the thickness of the first substrate layer, the second substrate layer and the third substrate layer are respectively and independently selected from 23-38 mu m.

3. The multi-layer composite structured battery protective tape according to claim 2, wherein: the thickness of the first substrate layer, the second substrate layer and the third substrate layer are respectively and independently selected from 28-32 mu m.

4. The multi-layer composite structured battery protection tape according to claim 1, wherein: the first adhesive layer, the second adhesive layer and the third adhesive layer are respectively and independently selected from one of acrylic adhesive and silica gel.

5. The multi-layer composite structured battery protective tape according to claim 4, wherein: the first adhesive layer, the second adhesive layer and the third adhesive layer are respectively and independently selected from acrylic adhesive.

6. The multi-layered composite structural battery protective tape according to claim 4 or 5, wherein: the thicknesses of the first adhesive layer, the second adhesive layer and the third adhesive layer are respectively and independently selected from 10-45 mu m.

7. The multi-layer composite structured battery protective tape of claim 6, wherein: the thickness of the first adhesive layer is 25-30 mu m.

8. The multi-layer composite structured battery protective tape of claim 6, wherein: the thickness of the second adhesive layer and the third adhesive layer are respectively and independently selected from 15-25 mu m.

9. The multi-layer composite structured battery protection tape according to claim 1, wherein: the thickness of the release film layer is 23-75 mu m.

10. A multi-layered composite structural battery protective tape according to any one of claims 1 to 3, wherein: the first substrate layer, the second substrate layer and the third substrate layer are all made of transparent PET materials.