High-toughness and high-voltage-resistance electric core foam

Abstract

The utility model discloses a high toughness high pressure resistance electric core foam, relates to the battery core foam technical field, the high toughness high pressure resistance electric core foam includes the inner core layer, first glue layer, foam layer, second glue layer and protective layer that set in proper order from inside to outside, the inner core layer includes the compressive layer, and the compressive layer is provided with the foam layer inside, and the protective layer is provided with the first glue layer, the foam layer, the second glue layer and the protective layer. The foam layer is filled with a conductive material, the conductive material is preferably a solid copper foil ball, the outer side of the compression-resistant layer is bonded with the inner side of the first adhesive layer, the outer side of the first adhesive layer is bonded with the inner side of the foam layer, the outer side of the foam layer is bonded with the inner side of the second adhesive layer, and the outer side of the second adhesive layer is bonded with the inner side of the first adhesive layer. And the outer side of the second adhesive layer is bonded with the inner side of the protective layer. The high-toughness and high-pressure-resistance electric core foam is good in pressure resistance and toughness, can be attached to any plane and bent surface, and is wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core foam, in particular to a high-toughness and high-pressure-resistant battery core foam. Background Art

[0002] Battery cell foam plays a vital role in battery cell modules. It is a foam material specially used in battery cell modules. It is usually made of polymer materials such as polyester and silicone. It has the characteristics of light weight, high strength, moisture resistance, and high temperature resistance.

[0003] Existing foam products are mainly made of ordinary PU foam and hot melt adhesive glued together by heating in a mold. They are made of EVA or PE foam as the base material and coated with solvent-based pressure-sensitive adhesive and then covered with release paper. They have the functions of sealing, cushioning and shock absorption.

[0004] When the battery cell module is working, it is prone to mechanical collision due to the influence of factors such as the surrounding environment and working mode. The battery cell foam has cushioning and shock-absorbing properties, which can reduce the magnitude of the impact force, thereby better protecting the battery cell and reducing the probability of damage to the battery cell. However, existing foam products are all equipped with a single layer of foam, and the cushioning effect is insufficient.

[0005] Therefore, in response to the above problems, it is necessary for the applicant to design a high-toughness and high-pressure-resistant battery foam to solve the problem. Summary of the Invention

[0006] The purpose of the present invention is to provide a high-toughness and high-pressure-resistant battery foam to solve the problems mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-toughness and high-pressure-resistant battery foam, comprising an inner core layer, a first adhesive layer, a foam layer, a second adhesive layer and a protective layer arranged in sequence from the inside to the outside, the inner core layer comprising a pressure-resistant layer, and a foam layer is arranged inside the pressure-resistant layer, the interior of the foam layer is filled with a conductive material, and the conductive material is preferably a solid copper foil ball, the outer side of the pressure-resistant layer is bonded to the inner side of the first adhesive layer, the outer side of the first adhesive layer is bonded to the inner side of the foam layer, the outer side of the foam layer is bonded to the inner side of the second adhesive layer, and the outer side of the second adhesive layer is bonded to the inner side of the protective layer,

[0008] Furthermore, the material of the pressure-resistant layer is a high-toughness metal material, preferably a flexible composite metal material.

[0009] Through the above structural design, the flexible composite metal material is a material with special mechanical properties. Compared with traditional metal materials, the flexible metal material can undergo larger deformation under the action of external force without breaking or damaging. This allows the battery cell foam to be made into various shapes and structures, suitable for different application scenarios, and has strong compressive resistance and high toughness.

[0010] Furthermore, the foam layer is made of elastic material, preferably polyvinyl alcohol foam.

[0011] Through the above structural design, polyvinyl alcohol foam is a foam product made of polyvinyl alcohol material through a specific foaming process. It has the characteristics of lightness and is easy to carry and transport. It contains a large number of microporous structures inside, and the pores are connected by smaller capillaries. It has a three-dimensional network open-pore structure with good buffering performance and strong acid and alkali resistance.

[0012] Furthermore, the materials of the first adhesive layer and the second adhesive layer are adhesives, the first adhesive layer is preferably polyurethane waterproof adhesive, and the second adhesive layer is preferably acrylic adhesive.

[0013] Through the above structural design, the polyurethane waterproof adhesive is transparent in color, has high viscosity, has excellent adhesion performance and weather resistance, can be quickly bonded in humid or underwater environments and is not easy to fall off, and has a wide range of applications. The acrylic adhesive has stable chemical properties and is easy to tear off without leaving any residual glue.

[0014] Furthermore, the foam layer is made of a foam material, preferably a polyolefin foam material.

[0015] Through the above structural design, the polyolefin foam material has good resilience, a smaller compression permanent deformation and good cushioning performance, which can absorb the stress load, disperse the adhesion to a larger area, reduce the impact energy, and thus improve the compressive resistance and toughness of the battery cell foam.

[0016] Furthermore, the protective layer is configured as a highly smooth film, preferably a release film.

[0017] Through the above structural design, the release film plays a role of isolating and protecting the second adhesive layer, thereby ensuring the adhesion of the second adhesive layer.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the high-toughness and high-pressure-resistant battery foam has good compressive performance and toughness, can be attached to any flat and curved surface, and has a wide range of applications. The specific contents are as follows:

[0019] The compression layer of the high-toughness and high-pressure-resistant battery cell foam is a flexible composite metal material. The flexible metal material can undergo large deformation under the action of external force without breaking or damaging. This allows the battery cell foam to be made into various shapes and structures, suitable for different application scenarios, and has strong pressure resistance and high toughness. The foam layer is polyvinyl alcohol foam, which contains a large number of microporous structures. The pores are connected by smaller capillaries, and it has a three-dimensional mesh open-pore structure with good cushioning performance. The foam layer is a polyolefin foam material. The polyolefin foam material has good resilience, a smaller compression permanent type, and good cushioning performance. It can absorb the load and disperse the adhesion to a larger area, reducing impact energy, thereby improving the pressure resistance and toughness of the battery cell foam, so that the battery cell foam has strong toughness and can be attached to any flat and curved surface, and it has high pressure resistance and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall split structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the inner core layer structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the overall distribution structure of the utility model.

[0023] In the figure: 1. Inner core layer; 2. First adhesive layer; 3. Foam layer; 4. Second adhesive layer; 5. Protective layer; 6. Anti-pressure layer; 7. Foam layer; 8. Conductive material. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-Figure 3 As shown, the utility model is a high-toughness and high-pressure-resistant battery foam, comprising an inner core layer 1, a first adhesive layer 2, a foam layer 3, a second adhesive layer 4 and a protective layer 5 arranged in sequence from the inside to the outside, the inner core layer 1 comprises a pressure-resistant layer 6, and a foam layer 7 is arranged inside the pressure-resistant layer 6, the interior of the foam layer 7 is filled with a conductive material 8, and the conductive material 8 is preferably a solid copper foil ball, the outer side of the pressure-resistant layer 6 is bonded to the inner side of the first adhesive layer 2, the outer side of the first adhesive layer 2 is bonded to the inner side of the foam layer 3, the outer side of the foam layer 3 is bonded to the inner side of the second adhesive layer 4, and the outer side of the second adhesive layer 4 is bonded to the inner side of the protective layer 5.

[0026] The material of the pressure-resistant layer 6 is a high-toughness metal material, preferably a flexible composite metal material. The flexible composite metal material is a material with special mechanical properties. Compared with traditional metal materials, flexible metal materials can undergo large deformation under external force without breaking or damaging. This allows the battery core foam to be made into various shapes and structures, suitable for different application scenarios, and has strong pressure resistance and high toughness. The material of the foam layer 7 is an elastic material, preferably polyvinyl alcohol foam. Polyvinyl alcohol foam is a foamed product made of polyvinyl alcohol material through a specific foaming process. It has the characteristics of lightness and is easy to carry and transport. It contains a large number of microporous structures inside. The pores are connected by smaller capillaries. It belongs to a three-dimensional network open-pore structure with good buffering performance and strong acid and alkali resistance. The material of the foam layer 3 is a foam material, preferably a polyolefin foam material. The polyolefin foam material has good resilience, small compression permanent type and good buffering performance. It can absorb the load and disperse the adhesion to a larger area, reducing impact energy, thereby improving the pressure resistance and toughness of the battery core foam.

[0027] The material of the first adhesive layer 2 and the second adhesive layer 4 is adhesive. The first adhesive layer 2 is preferably a polyurethane waterproof adhesive, and the second adhesive layer 4 is preferably an acrylic adhesive. The polyurethane waterproof adhesive is transparent, has high viscosity, has excellent adhesion and weather resistance, can be quickly bonded in a humid or underwater environment and is not easy to fall off, and has a wide range of applications. The acrylic adhesive has stable chemical properties, is easy to tear off, and does not leave any residual adhesive. The protective layer 5 is set to a high-smoothness film, preferably a release film. The release film plays an isolating and protective role for the second adhesive layer, ensuring the adhesion of the second adhesive layer.

[0028] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-toughness and high-pressure-resistant battery foam, characterized in that: The invention comprises an inner core layer (1), a first adhesive layer (2), a foam layer (3), a second adhesive layer (4) and a protective layer (5) which are arranged in sequence from the inside to the outside, wherein the inner core layer (1) comprises a pressure-resistant layer (6), and a foam layer (7) is arranged inside the pressure-resistant layer (6), the interior of the foam layer (7) is filled with a conductive material (8), and the conductive material (8) is a solid copper foil ball, the outer side of the pressure-resistant layer (6) is bonded to the inner side of the first adhesive layer (2), the outer side of the first adhesive layer (2) is bonded to the inner side of the foam layer (3), the outer side of the foam layer (3) is bonded to the inner side of the second adhesive layer (4), and the outer side of the second adhesive layer (4) is bonded to the inner side of the protective layer (5).

2. The high-toughness and high-pressure-resistant battery core foam according to claim 1, characterized in that: The material of the pressure-resistant layer (6) is a flexible composite metal material.

3. The high-toughness and high-pressure-resistant battery core foam according to claim 1, characterized in that: The foam layer (7) is made of polyvinyl alcohol foam.

4. The high-toughness and high-pressure-resistant battery core foam according to claim 1, characterized in that: The materials of the first adhesive layer (2) and the second adhesive layer (4) are adhesives, the first adhesive layer (2) is polyurethane waterproof adhesive, and the second adhesive layer (4) is acrylic adhesive.

5. The high-toughness and high-pressure-resistant battery foam according to claim 1, characterized in that: The foam layer (3) is made of polyolefin foam material.

6. The high-toughness and high-pressure-resistant battery core foam according to claim 1, characterized in that: The protective layer (5) is configured as a release film.

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