CN210516768U

CN210516768U - Composite construction's flame retardant coating and use battery system of this flame retardant coating

Info

Publication number: CN210516768U
Application number: CN201921481775.XU
Authority: CN
Inventors: 唐启滔
Original assignee: Lisevan Technology Co Ltd
Current assignee: Lisevan Technology Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-05-12
Anticipated expiration: 2029-09-06

Abstract

A composite structure fireproof layer and a battery system using the same relate to the technical field of batteries. The utility model provides a flame retardant coating of composite construction and use battery system of this flame retardant coating, it contains flame retardant coating, casing ply, insulating layer, shock-resistant layer, adhesive, battery system case lid, battery, the flame retardant coating center is the casing ply, and the casing ply is wire mesh layer or sheetmetal layer, and the casing ply top sets up the insulating layer, and the casing ply below sets up the shock-resistant layer, and insulating layer and shock-resistant layer are all fixed with the casing ply bonding through the adhesive, and the battery surface covers and sets up the flame retardant coating, and the flame retardant coating sets up between battery system case lid and battery. After the technical scheme is adopted, the beneficial effects of the utility model are that: its structural design is reasonable, has the high temperature of preventing, thermal-insulated and advantage such as shock resistance, covers the flame retardant coating of composite construction on battery surface, and when the battery appears the ignition thermal runaway, the flame retardant coating can effectively separate fire, realizes the fire prevention function effectively, easily promotes.

Description

Composite construction's flame retardant coating and use battery system of this flame retardant coating

Technical Field

The utility model relates to a battery technology field, concretely relates to composite construction's flame retardant coating and use battery system of this flame retardant coating.

Background

In a fire where some of the combustion products themselves have three elements of combustion (sufficient fuel, sufficient oxygen, and sufficient heat), it is very difficult to control the fire and extinguish the fire. The three elements of the ternary lithium ion battery for the new energy electric vehicle during the fire are high in energy and realize combustion by itself, the temperature is higher than or equal to 300 ℃, the fire is erupted and has certain impact force, meanwhile, rapid heat dissipation causes rapid thermal runaway of adjacent batteries, namely, the ternary lithium ion battery has three characteristics: high temperature, certain impact force and rapid heat transfer. At present, the mainstream fire-proof layer or the melting point is lower and is only suitable for general fire, or heat can be quickly transferred without heat insulation, or the main stream fire-proof layer or the melting point is low in strength and is easy to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a composite construction's flame retardant coating and use battery system of this flame retardant coating, its structural design is reasonable, has high temperature resistant, thermal-insulated and advantage such as shock resistance, covers composite construction's flame retardant coating at the battery surface, when the battery appears the thermal runaway of lighting a fire, the flame retardant coating can effectively separate fire, the one side temperature that the waterproof layer does not contact fire is no longer than 200 ℃, realize the fire prevention function effectively, easily promote.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the battery system box cover comprises a fireproof layer 1, a framework layer 11, a heat insulation layer 12, an impact resistance layer 13, an adhesive 14, a battery system box cover 2 and a battery 3, wherein the framework layer 11 is arranged at the center of the fireproof layer 1, the framework layer 11 is a metal wire mesh layer or a metal sheet layer, the heat insulation layer 12 is arranged above the framework layer 11, the impact resistance layer 13 is arranged below the framework layer 11, the impact resistance layer 13 is a high-temperature-resistant flexible material layer, the heat insulation layer 12 and the impact resistance layer 13 are both fixedly bonded with the framework layer 11 through the adhesive 14, the surface of the battery 3 is covered with the fireproof layer 1, the battery 3 is arranged inside the battery system box cover 2, and the fireproof layer 1 is arranged.

The thermal insulation layer 12 includes, but is not limited to, an aqueous, oily, two-component intumescent thermal insulation material layer or includes, but is not limited to, aerogel, asbestos, ceramic silicone rubber, ceramic fiber low thermal conductivity material layer.

The thickness of the framework layer 11 is 0.01mm-10mm, the temperature resistance of the framework layer 11 is above 300 ℃, the mesh number when the framework layer 11 is a metal mesh layer is 10-200, the filament diameter of the framework layer 11 is 0.001-10mm, and the thickness when the framework layer 11 is a metal sheet layer is 0.001-10 mm.

The thickness of the heat insulation layer 12 is 0.01-10 mm.

The impact resistant layer 13 comprises but is not limited to glass fiber, high silica fiber, ceramic fiber and chemical fiber layer, the thickness of the impact resistant layer 13 is 0.1-10mm, and the temperature resistance of the impact resistant layer 13 is more than or equal to 150 ℃.

The utility model discloses a theory of operation: the flame retardant coating pastes the inboard at the battery system case lid, inside the battery system case lid was arranged in to the battery, the flame retardant coating is between case lid and battery, and the battery side is arranged in to the impact resistance layer, the outside is arranged in to the insulating layer, when thermal runaway appeared in the battery, impact energy and heat when most thermal runaway had been offset to impact resistance layer and casing ply, at the isolation through the insulating layer, the final heat will be little transmitted to the external world, also offset heat and impact force and transmitted to the battery system case lid, prevent that the battery system case lid from being burnt out.

After the technical scheme is adopted, the utility model discloses beneficial effect does: its structural design is reasonable, has advantages such as prevent high temperature, thermal-insulated and shock resistance, covers the flame retardant coating of composite construction structure on battery surface, and when the battery appears the ignition thermal runaway, the flame retardant coating can effectively separate the fire, and the waterproof layer does not contact the one side temperature of fire and does not exceed 200 ℃, realizes the fire prevention function effectively, easily promotes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a battery system according to the present invention;

fig. 2 is a schematic structural diagram of the fire-proof layer 1 of the present invention.

Description of reference numerals: the battery system comprises a fireproof layer 1, a framework layer 11, a heat insulation layer 12, an impact resistance layer 13, an adhesive 14, a battery system box cover 2 and a battery 3.

Detailed Description

Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is: the fireproof battery comprises a fireproof layer 1, a framework layer 11, a heat insulation layer 12, an impact resistance layer 13, an adhesive 14, a battery system box cover 2 and a battery 3, wherein the framework layer 11 is arranged at the center of the fireproof layer 1, the framework layer 11 has high-temperature resistance, the framework layer 11 is a metal wire mesh layer or a metal sheet layer, the heat insulation layer 12 is arranged above the framework layer 11, the impact resistance layer 13 is arranged below the framework layer 11, the impact resistance layer 13 is a high-temperature-resistant flexible material layer, the heat insulation layer 12 is fixedly bonded on the upper surface of the framework layer 11 through the adhesive 14, the impact resistance layer 13 is fixedly arranged on the lower surface of the framework layer 11 through the adhesive 14, the surface of the battery 3 covers the fireproof layer 1, the battery 3 is arranged inside the battery system box cover 2, the fireproof layer 1 is arranged between the battery system box cover 2 and the battery 3, the heat insulation.

The main materials of the thermal insulation layer 12 are of two types: 1. including but not limited to aqueous, oily, two-component intumescent insulating adhesives which have a low and rapid decrease in thermal conductivity upon expansion; 2. including but not limited to aerogel, asbestos, ceramic silicone rubber, ceramic fiber low thermal conductivity materials.

The thickness of the framework layer 11 is between 0.01mm and 10mm, the framework layer 11 has high temperature resistance, the temperature resistance of the framework layer 1 is above 300 ℃, the mesh number when the framework layer 11 is made of metal mesh is between 10 and 200, the filament diameter of the framework layer 11 is between 0.001 and 10mm, and the thickness when the framework layer 11 is made of metal sheet is between 0.001 and 10 mm.

The thickness of the heat insulation layer 12 is 0.01-10 mm.

The thickness of the impact-resistant layer 13 is 0.1-10mm, the temperature resistance of the impact-resistant layer 13 is more than or equal to 150 ℃, and the impact-resistant layer can resist certain high-temperature impact force, and the main materials of the impact-resistant layer include but are not limited to glass fibers, high silica fibers, ceramic fibers, chemical fibers and other various flexible materials.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a composite construction's flame retardant coating and use battery system of this flame retardant coating which characterized in that: it contains flame retardant coating (1), casing ply (11), insulating layer (12), shock resistance (13), adhesive (14), battery system case lid (2), battery (3), flame retardant coating (1) center is casing ply (11), casing ply (11) are wire mesh layer or sheet metal layer, casing ply (11) top sets up insulating layer (12), casing ply (11) below sets up shock resistance (13), shock resistance (13) are high temperature resistant flexible material layer, insulating layer (12) and shock resistance (13) are all fixed with casing ply (11) bonding through adhesive (14), battery (3) surface covering sets up flame retardant coating (1), battery (3) set up inside battery system case lid (2), flame retardant coating (1) set up between battery system case lid (2) and battery (3).

2. The fire barrier of composite structure and the battery system using the same according to claim 1, wherein: the thermal insulation layer (12) comprises but is not limited to water-based, oil-based, two-component expansion type thermal insulation material layers or comprises but is not limited to aerogel, asbestos, ceramic silicon rubber and ceramic fiber low thermal conductivity coefficient material layers.

3. The fire barrier of composite structure and the battery system using the same according to claim 1, wherein: the thickness of the framework layer (11) is 0.01mm-10mm, the temperature resistance of the framework layer (11) is above 300 ℃, the mesh number when the framework layer (11) is a metal mesh layer is 10-200, the filament diameter of the framework layer (11) is 0.001-10mm, and the thickness when the framework layer (11) is a metal sheet layer is 0.001-10 mm.

4. The fire barrier of composite structure and the battery system using the same according to claim 1, wherein: the thickness of the heat insulation layer (12) is 0.01-10 mm.

5. The fire barrier of composite structure and the battery system using the same according to claim 1, wherein: the impact-resistant layer (13) comprises but is not limited to glass fiber, high silica fiber, ceramic fiber and a chemical fiber layer, the thickness of the impact-resistant layer (13) is 0.1-10mm, and the temperature resistance of the impact-resistant layer (13) is more than or equal to 150 ℃.