CN215871882U

CN215871882U - High-effect composite electrothermal film for lithium battery

Info

Publication number: CN215871882U
Application number: CN202122187854.3U
Authority: CN
Inventors: 吴华文
Original assignee: Xinlianhui Electronic Technology Huai'an Co ltd
Current assignee: Xinlianhui Electronic Technology Huai'an Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-18
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a high-efficiency composite electrothermal film for a lithium battery, which comprises a heat-resistant base material plate, wherein a supporting seat is connected to the outer wall of one side of the heat-resistant base material plate in a sticking mode through glue, an electrothermal film body is connected to the outer walls of the one sides of the heat-resistant base material plate and the supporting seat in a sticking mode through glue, a hollow inner cavity is formed in the electrothermal film body, and an insulating connecting layer, a first sealing layer and a second sealing layer are arranged in the hollow inner cavity. This high-effect lithium cell is with compound electric heat membrane, support through heat-resisting substrate board and supporting seat, can be with the partly embedding of electric heat membrane body in the space between the lithium cell of two cylinders for this internal first electrically conductive printing ink of electric heat membrane and the electrically conductive printing ink of second and the contact of lithium cell outer wall, thereby guarantee the even conduction of the heat that generates heat after follow-up circular telegram and in to the lithium cell, avoid the poor problem of lithium cell low discharge capacity, also avoid the serious problem of lithium cell life-span loss.

Description

High-effect composite electrothermal film for lithium battery

Technical Field

The utility model relates to the technical field of electrothermal films, in particular to a composite electrothermal film for a high-performance lithium battery.

Background

The electrothermal film is divided into high temperature, low temperature electrothermal film, and the high temperature electrothermal film generally is used for electron electrical apparatus, military affairs etc. and the electrothermal film of present science and technology production, electrothermal film heating system are the point type heating system who uses radiator, air conditioner, radiator as the representative, the line formula heating system that uses heating cable as the representative, adopt the low carbon heating high-tech product of modern aerospace technology research and development in the face formula heating field.

However, current lithium cell also causes the lithium cell to roll over the life-span easily under the problem that has discharge capacity extremely poor and the low temperature state under the low temperature environment, just so need increase the electric heat membrane in lithium cell group and heat, current electric heat membrane is difficult to abundant laminating on the outer wall of cylinder lithium cell, and then causes the inhomogeneous insufficient problem of lithium cell heating.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-efficiency composite electrothermal film for a lithium battery, which aims to solve the problem that the conventional electrothermal film is difficult to be fully attached to the outer wall of a cylindrical lithium battery in the background technology, so that the lithium battery is not uniformly and fully heated.

In order to achieve the purpose, the utility model provides the following technical scheme: a composite electrothermal film for high-efficiency lithium battery comprises a heat-resistant substrate plate, a supporting seat is adhered and connected on the outer wall of one side of the heat-resistant substrate plate through glue, the outer walls of the heat-resistant base material plate and one side of the supporting seat are connected with an electric heating film body through glue, a hollow inner cavity is arranged in the electric heating film body, an insulating connecting layer, a first sealing layer and a second sealing layer are arranged in the hollow inner cavity, the first sealing layer is positioned between the insulating connecting layer and the second sealing layer, the first sealing layer is filled with first conductive ink, the second sealing layer is filled with second conductive ink, the utility model discloses a supporting seat, including heat-resisting base material board, supporting seat, connection inserted bar, connection jack, back glue layer, the coating has the gum layer on keeping away from one side outer wall of supporting seat on the heat-resisting base material board, the embedding has the connection inserted bar on the adjacent one side outer wall of supporting seat of heat-resisting base material board, and keeps away from on the heat-resisting base material board and connect the one side outer wall of inserted bar and seted up connection jack.

Preferably, the supporting seat and the gum layer are both provided with two, and the two supporting seats and the two gum layers are symmetrically arranged on the outer walls of the two sides of the heat-resistant base material plate.

Preferably, the connecting inserted rod is matched and matched with the connecting inserting hole.

Preferably, the outer wall of one side of the supporting seat is provided with symmetrical arc concave surfaces.

Preferably, the first sealing layer and the second sealing layer are of hollow cylinder structures.

Preferably, the connecting inserted bar and the connecting insertion holes are both provided with two parts, and the two connecting inserted bars and the two connecting insertion holes are respectively symmetrically arranged on the outer walls of the two sides of the heat-resistant base material plate.

Compared with the prior art, the utility model has the beneficial effects that: the composite electric heating film for the high-efficiency lithium battery can embed one part of an electric heating film body into a gap between two cylindrical lithium batteries through the support of the heat-resistant base material plate and the support seat, so that the first conductive ink and the second conductive ink in the electric heating film body are contacted with the outer wall of the lithium battery, thereby ensuring that the heat generated by heating after subsequent electrification is uniformly transmitted into the lithium battery, realizing the heating of the lithium battery, avoiding the problem of poor low-discharge capacity of the lithium battery and the problem of serious damage to the service life of the lithium battery, improving the high efficiency of the electric heating film for heating the lithium battery, ensuring the uniformity and effectiveness of the heating of the internal materials of the lithium battery, and ensuring the uniform and effective heating of the internal materials of the lithium battery through the mutual matching of the connecting inserted rod, the connecting jack and the gum layer, the equipment that can realize a plurality of electric heat membrane bodies, and then the user demand of the lithium cell group of adaptation different length improves the adaptability of using.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a front view of a heat resistant substrate sheet of the present invention;

FIG. 4 is a front view of the support base of the present invention.

In the figure: 1. a heat resistant substrate sheet; 2. a supporting seat; 3. an electrothermal film body; 4. a hollow inner cavity; 5. an insulating connection layer; 6. a first sealing layer; 7. a second sealing layer; 8. a first conductive ink; 9. a second conductive ink; 10. a back glue layer; 11. connecting the inserted link; 12. and connecting the jacks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a high-efficiency composite electric heating film for a lithium battery comprises a heat-resistant base material plate 1, a supporting seat 2 is connected to the outer wall of one side of the heat-resistant base material plate 1 through glue adhesion, an electric heating film body 3 is connected to the outer walls of one side of the heat-resistant base material plate 1 and the supporting seat 2 through glue adhesion, a hollow inner cavity 4 is formed in the electric heating film body 3, an insulating connecting layer 5, a first sealing layer 6 and a second sealing layer 7 are arranged in the hollow inner cavity 4, the first sealing layer 6 is located between the insulating connecting layer 5 and the second sealing layer 7, the first conductive ink 8 is filled in the first sealing layer 6, the second conductive ink 9 is filled in the second sealing layer 7, the back glue layer 10 is coated on the outer wall of one side of the heat-resistant substrate plate 1 far away from the supporting seat 2, the connecting inserted rod 11 is embedded on the outer wall of one side of the heat-resistant substrate plate 1 adjacent to the supporting seat 2, and a connecting jack 12 is arranged on the outer wall of one side of the heat-resistant base material plate 1 far away from the connecting inserted rod 11.

In the utility model: the two supporting seats 2 and the two gum layers 10 are arranged together, and the two supporting seats 2 and the two gum layers 10 are symmetrically arranged on the outer walls of the two sides of the heat-resistant base material plate 1; two supporting seats 2 of being convenient for form half-circular arc, and then the lithium cell of the cylinder of being convenient for can block wherein, and then be convenient for follow-up even abundant heating to the lithium cell.

In the utility model: the connecting inserted link 11 is matched and matched with the connecting jack 12; the connection insertion rod 11 can be conveniently inserted into the connection insertion hole 12, so that the butt joint of the heat-resistant base material plate 1 is realized, and the adaptive assembly is convenient.

In the utility model: the outer wall of one side of the supporting seat 2 is provided with symmetrical arc concave surfaces; the outer wall of the lithium cell of cylinder is convenient for laminate.

In the utility model: the first sealing layer 6 and the second sealing layer 7 are of hollow cylinder structures; facilitating storage of the first conductive ink 8 and the second conductive ink 9.

In the utility model: the two connecting insertion rods 11 and the two connecting insertion holes 12 are arranged, and the two connecting insertion rods 11 and the two connecting insertion holes 12 are symmetrically arranged on the outer walls of the two sides of the heat-resistant base material plate 1 respectively; facilitating the joining together of two adjacent heat-resistant substrate plates 1.

The working principle is as follows: when the electric heating film is used, two adjacent heat-resistant base material plates 1 are connected in an adhesion manner through a back adhesive layer 10, the heat-resistant base material plates 1 are combined according to the length of the lithium battery combination of the cylinders, the connecting insertion rods 11 on the outer wall of one side of each heat-resistant base material plate 1 are inserted into the connecting insertion holes 12 on the outer wall of one side of each adjacent heat-resistant base material plate 1, the connecting insertion rods 11 are inserted into the connecting insertion holes 12 to realize butt joint, the heat-resistant base material plates 1 after combination and adhesion are placed on one side of the lithium batteries of the cylinders, the electric heating film body 3 on one side of the supporting seat 2 is embedded into a gap between the lithium batteries of the two cylinders through the supporting of the supporting seat 2, so that the first conductive ink 8 and the second conductive ink 9 in the electric heating film body 3 are in contact with the outer walls of the lithium batteries, the uniform conduction of heat generated after subsequent electrification is ensured to be conducted into the lithium batteries, the heating of the lithium batteries is realized, and the problem of low-discharge capacity and power of the lithium batteries is avoided, also avoid the serious problem of lithium cell life-span loss, improve the high efficiency to the lithium cell heating of electric heat membrane, also guarantee the even effective of lithium cell internal material heating.

In summary, the following steps: the composite electric heating film for the high-efficiency lithium battery can embed one part of an electric heating film body 3 into a gap between two cylindrical lithium batteries through the support of a heat-resistant base material plate 1 and a support seat 2, so that first conductive ink 8 and second conductive ink 9 in the electric heating film body 3 are contacted with the outer wall of the lithium batteries, thereby ensuring that heat generated after subsequent electrification is uniformly conducted into the lithium batteries, further realizing the heating of the lithium batteries, avoiding the problem of poor low-discharge power of the lithium batteries and the problem of serious service life breakage of the lithium batteries, improving the efficiency of the electric heating film for heating the lithium batteries, also ensuring the uniformity and effectiveness of the heating of materials in the lithium batteries, and realizing the assembly of a plurality of electric heating film bodies 3 through the mutual matching of a connecting inserted rod 11, a connecting inserted hole 12 and a back glue layer 10, thereby being suitable for the use requirements of lithium battery packs with different lengths, the adaptability of use is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-effect lithium cell is with compound electric heat membrane, includes heat-resisting substrate board (1), its characterized in that: the electric heating film is characterized in that a supporting seat (2) is connected to the outer wall of one side of the heat-resistant base material plate (1) through glue adhesion, an electric heating film body (3) is connected to the outer wall of one side of the heat-resistant base material plate (1) and the outer wall of one side of the supporting seat (2) through glue adhesion, a hollow inner cavity (4) is formed in the electric heating film body (3), an insulating connecting layer (5), a first sealing layer (6) and a second sealing layer (7) are arranged in the hollow inner cavity (4), the first sealing layer (6) is located between the insulating connecting layer (5) and the second sealing layer (7), first conductive ink (8) is filled in the first sealing layer (6), second conductive ink (9) is filled in the second sealing layer (7), a back glue layer (10) is coated on the outer wall of one side of the heat-resistant base material plate (1) far away from the supporting seat (2), the heat-resistant substrate board (1) is embedded with the connecting inserted bar (11) on the outer wall of one side adjacent to the supporting seat (2), and the connecting inserting hole (12) is formed in the outer wall of one side, far away from the connecting inserted bar (11), of the heat-resistant substrate board (1).

2. The composite electrothermal film for a high-performance lithium battery as claimed in claim 1, wherein: the supporting seat (2) and the gum layer (10) are both provided with two, and the two supporting seats (2) and the two gum layers (10) are symmetrically arranged on the outer walls of the two sides of the heat-resistant base material plate (1).

3. The composite electrothermal film for a high-performance lithium battery as claimed in claim 1, wherein: the connecting inserted bar (11) is matched and matched with the connecting inserting hole (12).

4. The composite electrothermal film for a high-performance lithium battery as claimed in claim 1, wherein: and the outer wall of one side of the supporting seat (2) is provided with symmetrical arc concave surfaces.

5. The composite electrothermal film for a high-performance lithium battery as claimed in claim 1, wherein: the first sealing layer (6) and the second sealing layer (7) are of hollow cylinder structures.

6. The composite electrothermal film for a high-performance lithium battery as claimed in claim 1, wherein: the connecting insertion rods (11) and the connecting insertion holes (12) are arranged two in number, and the two connecting insertion rods (11) and the two connecting insertion holes (12) are symmetrically arranged on the outer walls of the two sides of the heat-resistant base material plate (1) respectively.