Impact-resistant lithium ion battery

Abstract

The utility model relates to the technical field of lithium ion batteries, in particular to an anti-impact lithium ion battery, which adopts the technical scheme that the anti-impact lithium ion battery comprises a plurality of lithium batteries and a circuit board, the plurality of lithium batteries are parallel to one another and are arranged in a row, the anodes and the cathodes of the plurality of lithium batteries are sequentially connected through leads, and the leads are connected in series to form a lithium battery pack. A circuit board is fixedly installed on one side of the lithium battery pack composed of the multiple lithium batteries, the circuit board is electrically connected with the lithium battery pack composed of the multiple lithium batteries through the lithium battery pack composed of the multiple lithium batteries, and an anti-impact shell is fixedly installed on the outer sides of the lithium batteries and the circuit board; the lithium ion battery charger baby has the beneficial effects that the weight of the two sides of the lithium ion battery charger baby is increased through the anti-impact shell, so that the two sides of the lithium ion battery charger baby with larger contact areas are always contacted with the ground during falling, corners are prevented from being collided and collided, the battery charger baby is prevented from exploding or being natural, and the safety effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion batteries, in particular to an impact-resistant lithium ion battery. Background Art

[0002] Lithium-ion batteries are a type of storage battery whose internal chemical reactions can move lithium ions between positive and negative electrodes to store and release energy during the charge and discharge process. Lithium-ion batteries have the advantages of high energy density, long cycle life, light weight and fast charging. They are widely used in various electronic devices or power storage devices, such as mobile phones, laptops, power banks, cameras, drones, etc.

[0003] The prior art has the following deficiencies: lithium-ion batteries include a lithium-ion battery power bank. As a mobile power source, the lithium-ion battery power bank needs to be carried frequently. When carrying it or using it, when the user stands at a high place, the lithium-ion battery power bank may fall from a high place accidentally. If it touches a sharp object or hits the corner of the power bank during the fall, it is very easy to cause the lithium-ion battery power bank to explode or burst into flames, which can easily injure the user or pedestrians, and has certain safety hazards.

[0004] Therefore, it is necessary to invent a shock-resistant lithium-ion battery. Utility Model Content

[0005] To this end, the utility model provides an impact-resistant lithium-ion battery. A carbon fiber coating is arranged in an impact-resistant shell to ensure the shell is light while strengthening the shell strength. Buffer bags filled with buffer are arranged on both sides of the lithium battery pack in the impact-resistant shell to increase the weight on both sides of the lithium-ion battery power bank, so that when it falls, it always hits the ground with both sides with a larger contact area to avoid hitting or bumping corners, and better buffers the impact force caused by the fall, so as to solve the problem that when the lithium-ion battery power bank falls from a height, it is easy to touch sharp objects or bump against the corners of the power bank, which can easily cause the lithium-ion battery power bank to explode or break naturally, which may injure users or pedestrians and has certain safety hazards.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an impact-resistant lithium-ion battery, comprising a lithium battery and a circuit board, wherein the plurality of lithium batteries are parallel to each other and arranged in a row, the positive and negative poles of the adjacent lithium batteries face opposite directions, the positive and negative poles of the plurality of lithium batteries are connected in sequence by wires, the wires are connected in series to form a lithium battery group, a circuit board is fixedly installed on one side of the lithium battery group composed of the plurality of lithium batteries, the circuit board and the lithium battery group composed of the plurality of lithium batteries are electrically connected through the lithium battery group composed of the plurality of lithium batteries, an impact-resistant shell is fixedly installed on the outside of the lithium battery and the circuit board, and the impact-resistant shell can buffer the impact force exerted on the battery and the circuit board.

[0007] Preferably, the impact-resistant shell includes a buffer capsule, which is fixedly bonded to the upper and lower sides of a lithium battery pack composed of a plurality of lithium batteries. The buffer capsule is a hollow structure, and a buffer is injected into the buffer capsule.

[0008] Preferably, a side of the buffer capsule close to the lithium battery fits the surface of each lithium battery and the gaps between each lithium battery, and a side of the buffer capsule away from the lithium battery is configured as a wide plane.

[0009] Preferably, the impact-resistant housing includes a sleeve shell, which is a sleeve structure, and the sleeve shell is sleeved and installed on the outside of the lithium battery, the circuit board and the buffer bag. A side panel 2 is fixedly installed on one end of the inner wall of the sleeve shell away from the circuit board.

[0010] Preferably, the impact-resistant shell includes side panel 1, which is fixedly mounted on an end of the inner wall of the casing away from side panel 2, and a side of side panel 1 close to side panel 2 is fixedly connected to a side of the circuit board away from the lithium battery.

[0011] Preferably, the impact-resistant shell includes a carbon fiber coating, which is made of interlaced weaving of carbon fibers, fixedly bonded to the inner wall of the shell, and a side of the carbon fiber coating away from the inner wall of the shell is in close contact with the surface of the buffer capsule.

[0012] Preferably, the impact-resistant shell includes a sponge pad, which is arranged on the upper and lower sides of the circuit board, one end of the sponge pad is in contact with the surface of the circuit board, and the other end of the sponge pad is fixedly bonded to the side of the carbon fiber coating away from the shell.

[0013] Preferably, interface 1 and interface 2 are fixedly installed on the side of the circuit board away from the circuit board, and interface 1 and interface 2 are electrically connected to the circuit board. Interface 1 and interface 2 penetrate the side of side panel 1 close to the circuit board and extend to the outer wall of the circuit board.

[0014] The beneficial effects of the utility model are as follows: the carbon fiber coating arranged in the impact-resistant shell ensures that the shell is light while strengthening the shell strength, and the buffer bag filled with buffer arranged on both sides of the lithium battery pack in the impact-resistant shell increases the weight of the two sides of the lithium-ion battery power bank, so that when it falls, the two sides always contact the ground with a larger contact area, avoiding collisions and bumps at corners, better buffering the impact force caused by the fall, preventing the battery power bank from exploding or breaking naturally, and improving the safety effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A front view of an impact-resistant lithium-ion battery provided by the utility model;

[0016] Figure 2A cross-sectional view of a casing of an impact-resistant lithium-ion battery provided by the utility model;

[0017] Figure 3 A schematic diagram of the internal structure of an impact-resistant lithium-ion battery provided by the utility model;

[0018] Figure 4 A cross-sectional view of a buffer capsule of an impact-resistant lithium-ion battery provided by the utility model;

[0019] Figure 5 An exploded diagram of the internal structure of an impact-resistant lithium-ion battery provided by the utility model.

[0020] In the figure: casing 11, side panel 1 12, side panel 2 13, carbon fiber cladding 14, buffer capsule 15, sponge pad 16, buffer 17, lithium battery 21, wire 22, circuit board 23, interface 1 24, interface 2 25. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example 1

[0023] like Figure 1 , Figure 3 and Figure 5 As shown, an impact-resistant lithium-ion battery in an embodiment of the first aspect of the utility model includes a lithium battery 21 and a circuit board 23, wherein the plurality of lithium batteries 21 are parallel to each other and arranged in a row, and the positive and negative poles of the adjacent lithium batteries 21 face opposite directions, and the positive and negative poles of the plurality of lithium batteries 21 are connected in sequence by wires 22, and the wires 22 connect the wires 22 in series to form a lithium battery group, and a circuit board 23 is fixedly installed on one side of the lithium battery group composed of the plurality of lithium batteries 21, and the circuit board 23 is electrically connected to the lithium battery group composed of the plurality of lithium batteries 21 through the lithium battery group composed of the plurality of lithium batteries 21, and an impact-resistant shell is fixedly installed on the outside of the lithium battery 21 and the circuit board 23, and the impact-resistant shell can buffer the impact force exerted on the battery 21 and the circuit board 23.

[0024] In the above embodiment, it should be noted that the carbon fiber coating provided in the impact-resistant shell ensures that the shell is light while strengthening the shell strength, and the buffer bag filled with buffer provided on both sides of the lithium battery pack composed of dry lithium batteries 21 in the impact-resistant shell increases the weight of the two sides of the lithium-ion battery power bank, so that the falling side always contacts the ground with two sides with a larger contact area, avoiding collision and bumping corners, better buffering the impact force caused by the fall, preventing the lithium battery 21 from exploding or naturally, and improving the safety effect.

[0025] Example 2

[0026] like Figure 3-Figure 5 As shown, an impact-resistant lithium-ion battery includes all the contents of Example 1. In addition, the impact-resistant shell includes a buffer capsule 15, and the buffer capsule 15 is fixedly bonded to the upper and lower sides of a lithium battery pack composed of a plurality of lithium batteries 21. The buffer capsule 15 is a hollow structure, and a buffer 17 is injected into the buffer capsule 15. The side of the buffer capsule 15 close to the lithium battery 21 fits the surface of each lithium battery 21 and the gap between each lithium battery 21, and the side of the buffer capsule 15 away from the lithium battery 21 is set as a wide plane.

[0027] In the above embodiment, it should be noted that the buffer capsule 15 is a hollow liquid capsule made of polyethylene, and the buffer 17 is a non-Newtonian fluid. The buffer capsule 15 filled with the buffer 17 increases the weight of the upper and lower sides of the lithium battery 21, so that the impact-resistant lithium-ion battery is always in contact with the bottom surface with the wide outer wall planes on the upper and lower sides when falling, thereby expanding the force-bearing area. At the same time, the buffer 17 becomes hardened under force and absorbs the impact force, so as to achieve the effect of buffering the impact force of the lithium battery 21.

[0028] Example 3

[0029] like Figure 1-Figure 5 As shown, an impact-resistant lithium-ion battery includes all the contents of Example 2. In addition, the impact-resistant shell includes a casing 11, which is a sleeve structure. The casing 11 is sleeved and installed on the outside of the lithium battery 21, the circuit board 23 and the buffer capsule 15. The inner wall of the casing 11 is fixedly installed with a side plate 13 at one end away from the circuit board 23. The impact-resistant shell includes a side plate 12, which is fixedly installed at one end of the inner wall of the casing 11 away from the side plate 13. The side of the side plate 12 close to the side plate 13 is close to the circuit board 23 away from the lithium battery. The impact-resistant shell comprises a carbon fiber coating 14, which is made of carbon fiber interlaced weaving, and the carbon fiber coating 14 is fixedly bonded to the inner wall of the casing 11, and the side of the carbon fiber coating 14 away from the inner wall of the casing 11 is close to the surface of the buffer capsule 15, and the impact-resistant shell comprises a sponge pad 16, which is arranged on the upper and lower sides of the circuit board 23, one end of the sponge pad 16 is in contact with the surface of the circuit board 23, and the other end of the sponge pad 16 is fixedly bonded to the side of the carbon fiber coating 14 away from the casing 11.

[0030] In the above embodiment, it should be noted that the casing 11 is a metal casing, the side panel 12 and the side panel 2 13 are both metal side panels, the carbon fiber coating 14 is made of carbon fiber material, and the carbon fiber coating 14 is used to ensure lightness while strengthening the strength of the casing 11, and the sponge pad 16 has the effect of protecting the circuit board 23 and buffering the impact on the circuit board 23.

[0031] Example 4

[0032] like Figure 1 , Figure 3 and Figure 5 As shown, an impact-resistant lithium-ion battery includes all the contents of Example 3. In addition, an interface 1 24 and an interface 2 25 are fixedly installed on a side of the circuit board 23 away from the circuit board 23, and the interface 1 24 and the interface 2 25 are electrically connected to the circuit board 23. The interface 1 24 and the interface 2 25 pass through a side of the side plate 12 close to the circuit board 23 and extend to the outer wall of the circuit board 23.

[0033] In the above embodiment, it should be noted that the first interface 24 is a Type-C interface, and the second interface 25 is a USB interface.

[0034] The use process of the utility model is as follows: a technician in this field drops a lithium-ion battery from a high altitude, and increases the weight of the upper and lower sides of the lithium battery 21 through the buffer bag 15 filled with the buffer 17, so that the impact-resistant lithium-ion battery always has a wide outer wall plane on the upper and lower sides in contact with the bottom surface when falling, thereby expanding the force-bearing area. At the same time, the buffer 17 is hardened and absorbs the impact force. At the same time, the carbon fiber coating 14 strengthens the strength of the casing 11 while ensuring lightness, making the casing 11 more impact-resistant and protecting the internal lithium battery 21 and circuit board 23.

[0035] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. An impact-resistant lithium-ion battery, comprising a lithium battery (21) and a circuit board (23), wherein the plurality of lithium batteries (21) are arranged in parallel and in a row, the positive and negative electrodes of the adjacent lithium batteries (21) face opposite directions, the positive and negative electrodes of the plurality of lithium batteries (21) are sequentially connected by a wire (22), the wire (22) connects the wires (22) in series to form a lithium battery group, a circuit board (23) is fixedly mounted on one side of the lithium battery group composed of the plurality of lithium batteries (21), the circuit board (23) and the lithium battery group composed of the plurality of lithium batteries (21) are electrically connected through the lithium battery group composed of the plurality of lithium batteries (21), and the characteristics are: An impact-resistant shell is fixedly mounted on the outside of the lithium battery (21) and the circuit board (23), and the impact-resistant shell can buffer the impact force exerted on the battery (21) and the circuit board (23).

2. The impact-resistant lithium-ion battery according to claim 1, characterized in that: The impact-resistant shell comprises a buffer capsule (15), wherein the buffer capsule (15) is fixedly bonded to the upper and lower sides of a lithium battery pack composed of a plurality of lithium batteries (21), the buffer capsule (15) is a hollow structure, and a buffer (17) is injected into the buffer capsule (15).

3. The impact-resistant lithium-ion battery according to claim 2, characterized in that: The side of the buffer capsule (15) close to the lithium battery (21) fits the surface of each lithium battery (21) and the gaps between each lithium battery (21), and the side of the buffer capsule (15) away from the lithium battery (21) is configured as a wide plane.

4. The impact-resistant lithium-ion battery according to claim 3, characterized in that: The impact-resistant housing comprises a casing (11), the casing (11) being a sleeve structure, the casing (11) being sleeved and mounted on the outside of a lithium battery (21), a circuit board (23) and a buffer capsule (15), and a second side plate (13) being fixedly mounted on an inner wall of the casing (11) at one end away from the circuit board (23).

5. The impact-resistant lithium-ion battery according to claim 4, characterized in that: The impact-resistant housing comprises a first side plate (12), wherein the first side plate (12) is fixedly mounted on an end of the inner wall of the casing (11) away from the second side plate (13), and a side of the first side plate (12) close to the second side plate (13) is fixedly connected to a side of the circuit board (23) away from the lithium battery (21).

6. The impact-resistant lithium-ion battery according to claim 5, characterized in that: The impact-resistant shell comprises a carbon fiber coating (14), wherein the carbon fiber coating (14) is made of carbon fibers interlaced and woven, and the carbon fiber coating (14) is fixedly bonded to the inner wall of the casing (11), and the side of the carbon fiber coating (14) away from the inner wall of the casing (11) is in close contact with the surface of the buffer capsule (15).

7. The impact-resistant lithium-ion battery according to claim 6, characterized in that: The impact-resistant shell comprises a sponge pad (16), which is arranged on the upper and lower sides of the circuit board (23), one end of the sponge pad (16) is in contact with the surface of the circuit board (23), and the other end of the sponge pad (16) is fixedly bonded to a side of the carbon fiber coating (14) away from the casing (11).

8. The impact-resistant lithium-ion battery according to claim 5, characterized in that: An interface 1 (24) and an interface 2 (25) are fixedly mounted on a side of the circuit board (23) away from the circuit board (23); the interface 1 (24) and the interface 2 (25) are electrically connected to the circuit board (23); the interface 1 (24) and the interface 2 (25) penetrate a side of the side plate 1 (12) close to the circuit board (23) and extend to the outer wall of the circuit board (23).

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