Fiber-metal hybrid plate capable of automatically regulating and controlling temperature

Abstract

The utility model relates to the technical field of fiber metal hybrid plates, in particular to a fiber metal hybrid plate capable of automatically regulating and controlling temperature, which comprises two groups of metal plates, the two groups of metal plates are symmetrically arranged, each group of metal plates is provided with three layers, a fiber layer is arranged between every two adjacent layers of metal plates, and the fiber layer is arranged between every two adjacent layers of metal plates. The fiber layer is made of aramid fibers; a phase-change material layer is arranged between the two groups of metal plates and is obtained by blending and foaming phenolic resin, phase-change microcapsules and polyethylene glycol; the outer side of the phase change material layer is wrapped with a PET layer. The fiber metal hybrid plate prepared by the utility model has the capability of autonomously regulating and controlling the temperature, a lithium battery is protected, and meanwhile, the impact resistance and the toughness of the hybrid plate are high.

Description

Technical Field

[0001] This utility model relates to the field of fiber-metal hybrid board technology, and in particular to a fiber-metal hybrid board with self-regulating temperature. Background Technology

[0002] In the exploration of clean new energy sources, the development and progress of novel lithium-ion battery technology, as an important electrochemical energy source, cannot be ignored. Novel lithium-ion batteries possess numerous advantages, including good range, low cost, long lifespan, excellent portability, diverse energy sources, and environmental friendliness. Therefore, they are widely used in many fields such as transportation, communication equipment, and aerospace, especially meeting the requirements of the low-altitude economy. The power, charging speed, and range of lithium-ion batteries all have a suitable operating temperature range; the temperature cannot be too high or too low. Therefore, implementing thermal management for lithium-ion batteries, precisely controlling their operating environment temperature within the optimal range, helps them achieve optimal cycle performance and extends their lifespan.

[0003] A battery casing is placed on the outside of a lithium battery. In response to the problems mentioned in the background technology, the inventors proposed a fiber-metal hybrid plate with self-regulating temperature. This fiber-metal hybrid plate can be applied to the battery casing of lithium batteries. By changing the solid and liquid phases of the core material in the phase change microcapsule, the impact of excessively high or low temperatures on the lithium battery is reduced. At the same time, the fiber-metal hybrid plate is based on a multi-layer aluminum alloy structure, combined with aramid fibers, and with the phase change material layer, it effectively improves the overall toughness and impact resistance of the plate. Utility Model Content

[0004] This invention provides a fiber-metal hybrid board with self-regulating temperature to solve the problems mentioned in the background art.

[0005] A self-regulating temperature fiber-metal hybrid board includes two sets of metal plates arranged symmetrically. Each set of metal plates has three layers, with a fiber layer made of aramid fiber between adjacent metal plates. A phase change material layer is disposed between the two sets of metal plates, obtained by blending and foaming phenolic resin, phase change microcapsules, and polyethylene glycol. The phase change material layer is wrapped with a PET layer.

[0006] Furthermore, the metal plate is an aluminum alloy metal plate.

[0007] Furthermore, the fiber layer is bonded to the metal plate using epoxy resin adhesive.

[0008] Furthermore, the shell material of the phase change microcapsule is polyurea resin, and the core material of the phase change microcapsule is paraffin wax.

[0009] Furthermore, the phase change material layer and the PET layer are bonded together using double-sided adhesive.

[0010] Furthermore, the PET layer is bonded to the metal plate using polyurethane adhesive.

[0011] The advantages and beneficial effects of this utility model are as follows:

[0012] This application uses a metal plate as the basic structure of a hybrid plate, specifically aluminum alloy, to provide basic strength support for the hybrid plate. A fiber layer, made of aramid fiber, is placed between the metal plates. The aramid fiber further strengthens the hybrid plate and helps to reduce the overall weight of the material. A phase change material layer is placed in the middle of the entire hybrid plate. The phase change material layer contains phase change microcapsules. The core material in the phase change microcapsules can undergo a solid-liquid phase transition under temperature changes, thereby enabling the hybrid plate to automatically regulate temperature. Furthermore, the phase change material layer improves the toughness and impact resistance of the hybrid plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Metal plate; 2. Fiber layer; 3. PET layer; 4. Phase change material layer. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0017] like Figure 1 As shown, this utility model provides a fiber-metal hybrid board with self-regulating temperature, including a metal plate 1. There are two sets of metal plates 1, which form the outer structure of the entire hybrid board. The two sets of metal plates 1 are symmetrically arranged, and each set of metal plates 1 has three layers. The thickness of each layer of metal plate 1 is set to 0.8-1.2mm. The material of the metal plate 1 is aluminum alloy metal plate. The multiple layers of metal plates 1 together constitute the basic structure of the hybrid board, providing a strong foundation for the hybrid board.

[0018] A fiber layer 2 is provided between each adjacent metal plate 1. The fiber layer 2 is made of aramid fiber and the thickness of the fiber layer 2 is 0.1-0.2mm. Aramid fiber has the characteristics of high strength and high modulus, as well as good heat resistance, corrosion resistance and fatigue resistance. It can effectively improve the impact resistance and tear resistance of the hybrid plate. At the same time, the addition of aramid fiber can also reduce the overall weight of the hybrid plate.

[0019] The aramid fiber and the metal plate 1 are bonded together with epoxy resin adhesive. In the specific processing, the metal plate 1, fiber layer 2, metal plate 1, fiber layer 2 and metal plate 1 are stacked together. Epoxy resin adhesive is applied to the mating surface of fiber layer 2 and metal plate 1, and hot pressing is performed. The hot pressing temperature is 70-120℃ and the applied pressure is 0.5-2Mpa.

[0020] In this application, a phase change material layer 4 is provided between two sets of metal plates 1. The thickness of the phase change material layer 4 is 1.8-2.5mm. Specifically, the phase change material layer 4 is obtained by blending and foaming phenolic resin, phase change microcapsules and polyethylene glycol. The phase change material layer 4 improves the overall toughness and impact resistance of the hybrid plate. At the same time, phase change microcapsules are added to the material. The shell material of the phase change microcapsules is polyurea resin and the core material of the phase change microcapsules is paraffin wax. Through the solid-liquid phase transition of the core material, the entire hybrid plate has the ability to autonomously regulate temperature.

[0021] The phase change material layer 4 is wrapped with a PET layer 3. The PET layer 3 and the phase change material layer 4 are bonded together with double-sided adhesive. The PET layer 3 effectively protects the phase change material layer 4. The thickness of the PET layer 3 is 0.2-0.4 mm.

[0022] The PET layer 3 on the outside of the phase change material layer 4 is bonded to the metal plates 1 on both sides using polyurethane adhesive.

[0023] The self-regulating temperature fiber-metal hybrid plate of this application includes multiple metal plates 1 located on both sides. The metal plates 1 are the basic structure of the hybrid plate, specifically aluminum alloy, which provides basic strength support for the hybrid plate. A fiber layer 2 is set between the metal plates 1. The fiber layer 2 is aramid fiber, which further strengthens the strength of the hybrid plate and helps to reduce the overall weight of the material. A phase change material layer 4 is set in the middle of the entire hybrid plate. The phase change material layer 4 contains phase change microcapsules. The core material in the phase change microcapsules can undergo a solid-liquid phase transition when the temperature changes, thereby enabling the hybrid plate to automatically regulate temperature. The phase change material layer 4 also improves the toughness and impact resistance of the hybrid plate.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fiber-metal hybrid board with self-regulating temperature, characterized in that, The device includes two sets of metal plates arranged symmetrically. Each set of metal plates has three layers, with a fiber layer made of aramid fiber between adjacent metal plates. A phase change material layer is provided between the two sets of metal plates. The phase change material layer is obtained by blending and foaming phenolic resin, phase change microcapsules, and polyethylene glycol. The outer side of the phase change material layer is wrapped with a PET layer.

2. The fiber-metal hybrid plate with self-regulating temperature according to claim 1, characterized in that, The metal plate is an aluminum alloy metal plate.

3. The fiber-metal hybrid plate with self-regulating temperature according to claim 1, characterized in that, The fiber layer is bonded to the metal plate with epoxy resin adhesive.

4. The fiber-metal hybrid plate with self-regulating temperature according to claim 1, characterized in that, The shell material of the phase change microcapsule is polyurea resin, and the core material of the phase change microcapsule is paraffin wax.

5. The fiber-metal hybrid plate with self-regulating temperature according to claim 1, characterized in that, The phase change material layer and the PET layer are bonded together with double-sided adhesive.

6. The fiber-metal hybrid plate with self-regulating temperature according to claim 1, characterized in that, The PET layer is bonded to the metal plate using polyurethane adhesive.

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