A soft-packaged lithium-ion battery

Abstract

The utility model provides a kind of soft package lithium ion battery, it is related to soft package lithium ion battery technical field, comprising: lithium battery plate, aluminium-plastic outer shell being installed to lithium battery plate outside, positive electrode sheet being installed to one side of lithium battery plate top, negative electrode sheet being installed to one side of positive electrode sheet, anti-falling assembly being arranged in the both sides of lithium battery plate outside, anti-falling assembly includes: outer anti-falling protection block, inner anti-falling protection block, opening, rubber cross bar and rubber vertical pole.This kind of soft package lithium ion battery can provide anti-collision protection between lithium battery plate by anti-falling assembly, and when lithium battery plate falls on the ground, it can also play the role of buffering protection, avoid the collision between lithium battery plate or drop to ground easily damaged, to extend the service life of lithium battery plate, and through protection assembly, positive electrode sheet and negative electrode sheet can be covered and shielded, avoid positive electrode sheet and negative electrode sheet have dust or be damp, ensure lithium battery plate safe use.

Description

Technical Field

[0001] This utility model relates to the field of soft-pack lithium-ion battery technology, specifically a soft-pack lithium-ion battery. Background Technology

[0002] Soft-pack lithium-ion batteries are lithium-ion batteries that use an aluminum-plastic composite film as the outer shell material. Compared with traditional metal-cased lithium-ion batteries (such as steel or aluminum shells), they have advantages such as light weight, small size, and flexible design. Due to the use of a lighter aluminum-plastic film for packaging, soft-pack lithium-ion batteries can reduce weight by about 20%-30% compared to metal-cased batteries. In case of abnormal conditions (such as overcharging or short circuit), soft-pack lithium-ion batteries will generally bulge and crack, rather than potentially exploding like metal-cased batteries.

[0003] During transport, existing soft-pack lithium-ion batteries are prone to collisions or damage when stacked together or dropped, reducing their lifespan. Furthermore, the positive and negative electrode plates are typically exposed during storage, making them susceptible to dust and moisture accumulation, increasing the likelihood of lithium-ion battery safety incidents. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a soft-pack lithium-ion battery that provides anti-collision protection between lithium battery panels through a drop-proof component, and also plays a buffering role when the lithium battery panels are dropped on the ground, avoiding damage caused by collisions or drops, thereby extending the service life of the lithium battery panels. The protective component can also cover and shield the positive and negative electrode plates to prevent dust or moisture from getting on them, ensuring safe use of the lithium battery panels and reducing the incidence of safety accidents.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A soft-pack lithium-ion battery includes: a lithium battery plate; an aluminum-plastic outer shell mounted on the outside of the lithium battery plate; a positive electrode plate mounted on one side of the top of the lithium battery plate; a negative electrode plate mounted on one side of the positive electrode plate; and drop-proof components disposed on both sides of the outside of the lithium battery plate. The drop-proof components include: an outer drop-proof protective block, an inner drop-proof protective block, an opening, a rubber crossbar, and a rubber vertical bar. A protective component disposed on the outside of the positive electrode plate and the negative electrode plate includes: a protective cover, a retainer, and a wear-resistant layer.

[0007] Preferably, the lithium battery panel has an outer anti-drop protection block on the front and an inner anti-drop protection block on the back. Both the inner and outer anti-drop protection blocks have openings inside. Multiple rubber horizontal bars and multiple rubber vertical bars are installed inside each opening. The multiple rubber vertical bars and multiple rubber horizontal bars are arranged alternately to divide the opening into several heat dissipation vents.

[0008] Preferably, the aluminum-plastic outer shell has a protective cover on top, and two sleeves adapted to the positive electrode plate and the negative electrode plate are installed inside the protective cover. The sleeves have an anti-wear layer inside.

[0009] Preferably, the abrasion-resistant layer is made of sponge material.

[0010] Preferably, a moisture-proof layer is provided between the anti-wear layer and the sleeve, and the moisture-proof layer is filled with silica gel desiccant.

[0011] Preferably, both sides of the outer end of the lithium battery plate are provided with a thermally conductive layer, which is made of thermally conductive silicone material.

[0012] Preferably, four reinforcing hoops are installed on both sides of the interior of the aluminum-plastic outer shell, and connecting blocks are installed between the four reinforcing hoops.

[0013] Compared with existing technologies, the beneficial effects of this utility model are:

[0014] The combination of outer and inner anti-drop protection blocks, openings, rubber crossbars, and rubber vertical bars provides anti-collision protection between lithium battery panels and also acts as a buffer when lithium battery panels are dropped on the ground, preventing them from being easily damaged by collisions or drops, thereby extending the service life of the lithium battery panels.

[0015] By using a protective cover, sleeve, and anti-wear layer together, the positive and negative electrode plates can be covered and protected, preventing dust or moisture from getting on them, ensuring the safe use of the lithium battery panel, and reducing the incidence of safety accidents. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the disassembled structure of the protective cover and the aluminum-plastic outer shell of this utility model.

[0017] Figure 2 This is a schematic diagram of the connection structure between the protective cover and the aluminum-plastic outer shell of this utility model.

[0018] Figure 3 This is a front view cross-sectional schematic diagram of the aluminum-plastic outer shell of this utility model.

[0019] Figure 4This is a side cross-sectional view of the aluminum-plastic outer shell of this utility model.

[0020] Figure 5 This is a cross-sectional schematic diagram of the outer anti-fall protective block of this utility model.

[0021] Figure 6 This is a cross-sectional schematic diagram of the protective cover of this utility model.

[0022] Figure 7 This is a schematic cross-sectional view of the heat-conducting layer of this utility model.

[0023] Figures 1-7 Components: 1. Lithium battery panel; 101. Aluminum-plastic outer shell; 102. Positive electrode sheet; 103. Negative electrode sheet; 2. Outer anti-drop protective block; 201. Inner anti-drop protective block; 202. Opening; 203. Rubber crossbar; 204. Rubber vertical bar; 3. Protective cover; 301. Sleeve; 302. Anti-wear layer; 303. Moisture-proof layer; 4. Thermal conductive layer; 5. Reinforcing hoop; 501. Connecting block. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments. Example

[0026] like Figures 1-7 As shown, a soft-pack lithium-ion battery includes: a lithium battery plate 1, an aluminum-plastic outer shell 101 installed outside the lithium battery plate 1, a positive electrode sheet 102 installed on one side of the top of the lithium battery plate 1, a negative electrode sheet 103 installed on one side of the positive electrode sheet 102, and anti-drop components disposed on both sides of the outside of the lithium battery plate 1. The anti-drop components include: an outer anti-drop protective block 2, an inner anti-drop protective block 201, an opening 202, a rubber crossbar 203, and a rubber vertical bar 204. A protective component disposed outside the positive electrode sheet 102 and the negative electrode sheet 103 includes: a protective cover 3, a retainer 301, and an anti-wear layer 302.

[0027] The lithium battery panel 1 has an outer anti-drop protection block 2 on its front side and an inner anti-drop protection block 201 on its back side. Both the inner anti-drop protection block 201 and the outer anti-drop protection block 2 have openings 202 inside. Multiple rubber crossbars 203 and multiple rubber vertical bars 204 are installed inside the openings 202. The multiple rubber vertical bars 204 and multiple rubber crossbars 203 are arranged alternately to divide the openings 202 into several heat dissipation vents.

[0028] When the lithium battery panel 1 is in use, an aluminum-plastic outer shell 101 is installed on the outside of the lithium battery panel 1 for sealing protection. An outer anti-drop protection block 2 and an inner anti-drop protection block 201 are respectively installed on both sides inside the aluminum-plastic outer shell 101. The outer anti-drop protection block 2 is located on the front of the lithium battery panel 1, and the inner anti-drop protection block 201 is located on the back of the lithium battery panel 1. Both the outer anti-drop protection block 2 and the inner anti-drop protection block 201 are made of rubber material. The outer anti-drop protection block 2 and the inner anti-drop protection block 201 are tightly attached to the inner wall of the aluminum-plastic outer shell 101. The outer anti-drop protection block 2 and the inner anti-drop protection block 201 are used in conjunction with the rubber crossbar 203 and the rubber vertical bar 204 to provide anti-collision protection between the lithium battery panels 1, and also to provide cushioning protection when the lithium battery panel 1 is dropped on the ground, so as to avoid collisions between the lithium battery panels 1 or damage when dropped on the ground, thereby extending the service life of the lithium battery panel 1.

[0029] Multiple rubber vertical rods 204 and multiple rubber horizontal rods 203 are arranged in an alternating pattern to divide the opening 202 into several heat dissipation vents. The heat dissipation vents are attached to the heat-conducting layer 4, which provides buffer protection for the lithium battery panel 1 without affecting the heat conduction and dissipation of the lithium battery panel 1. When the heat-conducting layer 4 conducts the heat generated by the lithium battery panel 1 to the outside of the aluminum-plastic outer shell 101, the heat dissipation vents help the heat to be discharged to the outside of the aluminum-plastic outer shell 101, thus preventing heat from accumulating around the lithium battery panel 1.

[0030] The aluminum-plastic outer shell 101 has four reinforcing hoops 5 installed on both sides inside, and connecting blocks 501 are installed between the four reinforcing hoops 5. When the lithium battery plate 1 is installed inside the aluminum-plastic outer shell 101, the reinforcing hoops 5 on both sides inside the aluminum-plastic outer shell 101 reinforce and cover the lithium battery plate 1, the outer anti-drop protection block 2, and the inner anti-drop protection block 201, thereby improving the anti-drop protection capability of the aluminum-plastic outer shell 101 and preventing deformation of the aluminum-plastic outer shell 101 from affecting the use of the lithium battery plate 1.

[0031] The aluminum-plastic outer shell 101 has a protective cover 3 on top. Inside the protective cover 3, there are two sleeves 301 that are compatible with the positive electrode plate 102 and the negative electrode plate 103. Inside the sleeves 301, there is an anti-wear layer 302, which is made of sponge material.

[0032] During storage, since the positive electrode 102 and negative electrode 103 are exposed, the protective cover 3 is placed on top of the aluminum-plastic outer shell 101. At this time, the two retainers 301 inside the protective cover 3 are aligned and locked with the positive electrode 102 and negative electrode 103 respectively. When the positive electrode 102 and negative electrode 103 are inserted into the retainer 301, the anti-wear layer 302 can prevent the positive electrode 102 and negative electrode 103 from being worn against the inner wall of the retainer 301. The protective cover 3 and retainer 301 shield and protect the positive electrode 102 and negative electrode 103, preventing dust or moisture from getting on them, ensuring the safe use of the lithium battery panel 1 and reducing the incidence of safety accidents.

[0033] When installing and using the lithium battery panel 1, simply remove the protective cover 3 on top of the aluminum-plastic outer shell 101 to expose the positive electrode 102 and the negative electrode 103.

[0034] A moisture-proof layer 303 is provided between the anti-wear layer 302 and the ferrule 301. The moisture-proof layer 303 is filled with silica gel desiccant. When the protective cover 3 and the ferrule 301 cover and protect the positive electrode 102 and the negative electrode 103, the silica gel desiccant inside the moisture-proof layer 303 can absorb moisture from the ferrule 301 to ensure that the ferrule 301 remains dry during use and prevent the positive electrode 102 and the negative electrode 103 from getting damp.

[0035] The lithium battery panel 1 has heat-conducting layers 4 on both sides of its outer end. The heat-conducting layers 4 are made of thermally conductive silicone material. During the use of the lithium battery panel 1, the lithium battery panel 1 will generate heat. The heat generated by the lithium battery panel 1 can be dissipated to the outside of the aluminum-plastic outer shell 101 through the heat-conducting layers 4. When the lithium battery panel 1 is installed inside the equipment, a heat sink will be installed on the outside of the aluminum-plastic outer shell 101. The heat sink can dissipate and cool down the heat dissipated by the aluminum-plastic outer shell 101, so as to prevent the lithium battery panel 1 from getting hot during use.

[0036] Working principle:

[0037] During storage, since the positive electrode 102 and negative electrode 103 are exposed, the protective cover 3 is placed on top of the aluminum-plastic outer shell 101. At this time, the two retainers 301 inside the protective cover 3 are aligned and locked with the positive electrode 102 and negative electrode 103 respectively. When the positive electrode 102 and negative electrode 103 are inserted into the retainer 301, the anti-wear layer 302 can prevent the positive electrode 102 and negative electrode 103 from being worn against the inner wall of the retainer 301. The protective cover 3 and retainer 301 shield and protect the positive electrode 102 and negative electrode 103, preventing dust or moisture from getting on them, ensuring the safe use of the lithium battery panel 1 and reducing the incidence of safety accidents.

[0038] When the lithium battery panel 1 is in use, an aluminum-plastic outer shell 101 is installed on the outside of the lithium battery panel 1 for sealing protection. An outer anti-drop protection block 2 and an inner anti-drop protection block 201 are respectively installed on both sides inside the aluminum-plastic outer shell 101. The outer anti-drop protection block 2 is located on the front of the lithium battery panel 1, and the inner anti-drop protection block 201 is located on the back of the lithium battery panel 1. Both the outer anti-drop protection block 2 and the inner anti-drop protection block 201 are made of rubber material. The outer anti-drop protection block 2 and the inner anti-drop protection block 201 are tightly attached to the inner wall of the aluminum-plastic outer shell 101. The outer anti-drop protection block 2 and the inner anti-drop protection block 201 are used in conjunction with the rubber crossbar 203 and the rubber vertical bar 204 to provide anti-collision protection between the lithium battery panels 1, and also to provide cushioning protection when the lithium battery panel 1 is dropped on the ground, so as to avoid collisions between the lithium battery panels 1 or damage when dropped on the ground, thereby extending the service life of the lithium battery panel 1.

[0039] During use, the lithium battery panel 1 generates heat. The heat generated by the lithium battery panel 1 can be dissipated to the outside of the aluminum-plastic outer shell 101 through the heat-conducting layer 4. When the lithium battery panel 1 is installed inside the equipment, a heat sink will be installed on the outside of the aluminum-plastic outer shell 101. The heat sink can dissipate and cool down the heat dissipated by the aluminum-plastic outer shell 101, so as to prevent the lithium battery panel 1 from overheating during use.

[0040] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0041] The above provides a detailed description of a soft-pack lithium-ion battery provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A soft-pack lithium-ion battery, characterized in that, include: Lithium battery panel (1); An aluminum-plastic outer shell (101) is installed on the outside of the lithium battery panel (1). A positive electrode sheet (102) is installed on one side of the top of the lithium battery plate (1). A negative electrode plate (103) is installed on one side of the positive electrode plate (102). The anti-drop components are provided on both sides of the outside of the lithium battery plate (1). The anti-drop components include: an outer anti-drop protection block (2), an inner anti-drop protection block (201), an opening (202), a rubber crossbar (203), and a rubber vertical bar (204). A protective component disposed outside the positive electrode sheet (102) and the negative electrode sheet (103) includes a protective cover (3), a retainer (301), and an anti-wear layer (302).

2. The soft-pack lithium-ion battery according to claim 1, characterized in that, The lithium battery panel (1) has an outer anti-drop protection block (2) on its outer front and an inner anti-drop protection block (201) on its outer back. Both the inner anti-drop protection block (201) and the outer anti-drop protection block (2) have openings (202) inside. Multiple rubber crossbars (203) are installed inside each opening (202), and multiple rubber vertical bars (204) are installed inside each opening (202). The multiple rubber vertical bars (204) and the multiple rubber crossbars (203) are arranged alternately to divide the opening (202) into several heat dissipation vents.

3. The soft-pack lithium-ion battery according to claim 1, characterized in that, The aluminum-plastic outer shell (101) is provided with a protective cover (3) on the top. Inside the protective cover (3) are two sleeves (301) that are compatible with the positive electrode plate (102) and the negative electrode plate (103). Inside the sleeves (301) is an anti-wear layer (302).

4. The soft-pack lithium-ion battery according to claim 3, characterized in that, The wear-resistant layer (302) is made of sponge material.

5. The soft-pack lithium-ion battery according to claim 3, characterized in that, A moisture-proof layer (303) is provided between the wear-resistant layer (302) and the sleeve (301), and the moisture-proof layer (303) is filled with silica gel desiccant.

6. The soft-pack lithium-ion battery according to claim 1, characterized in that, The lithium battery plate (1) has a heat-conducting layer (4) on both sides of its outer end, and the heat-conducting layer (4) is made of thermally conductive silicone material.

7. The soft-pack lithium-ion battery according to claim 1, characterized in that, Four reinforcing hoops (5) are installed on both sides of the interior of the aluminum-plastic outer shell (101), and a connecting block (501) is installed between the four reinforcing hoops (5).

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