Soft package and battery

Abstract

The utility model provides a kind of soft package shell and battery, the shell of the utility model embodiment includes shell main body and reinforcing structure. Among them, shell main body has the containment cavity for accommodating electric core and the edge sealing area for sealing containment cavity, while reinforcing structure is wrapped edge sealing area, and is connected with edge sealing area. The shell of the utility model embodiment can further seal the edge sealing area of shell main body by setting the reinforcing structure wrapped edge sealing area in the edge sealing area for sealing containment cavity, and then the sealing strength of the shell of the utility model embodiment can be greatly improved. Therefore, the sealing strength of the soft package shell of the utility model embodiment can be greatly improved without improving the area of seal area.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a soft-pack casing and a battery. Background Technology

[0002] As end customers increase their demand for longer battery life, lithium-ion battery manufacturers are pushing the limits of cell design. To make room for more space in the cells, the sealing area of ​​pouch cells is constantly decreasing. This leads to a reduction in the sealing strength of the cells, causing safety hazards and the risk of leakage and failure.

[0003] Therefore, the soft-shell casing in the relevant technology has the problem of low sealing strength. Utility Model Content

[0004] This utility model provides a soft-pack shell to solve the problem of low sealing strength of soft-pack shells in related technologies, thereby improving the effect of soft-pack shells.

[0005] The soft-pack housing of this utility model embodiment includes: The housing body has a receiving cavity for accommodating the battery cell and a sealing area for sealing the receiving cavity; A reinforcing structure is provided, which encloses the edge sealing area and is connected to the edge sealing area.

[0006] The soft-pack shell of this utility model can further seal the sealing area of ​​the shell body by providing a reinforcing structure that wraps the sealing area in the sealing area used to seal the receiving cavity, thereby greatly improving the sealing strength of the soft-pack shell of this utility model.

[0007] Therefore, the soft-shell housing of this utility model embodiment can greatly improve the sealing strength of the soft-shell housing without increasing the sealing area.

[0008] In some embodiments, the sealing area includes a sealing area, a first unsealed area, and a second unsealed area; the first unsealed area is located on the side of the sealing area closer to the receiving cavity, and the second unsealed area is located on the side of the sealing area away from the receiving cavity.

[0009] In some embodiments, the width of the sealing area is 1.4-2.0 mm; and / or The width of the sealing area is 0.8-1.2 mm.

[0010] In some embodiments, the sealing area includes a first aluminum-plastic film and a second aluminum-plastic film stacked together, and the reinforcing structure is a third aluminum-plastic film. A portion of the third aluminum-plastic film is disposed on the side of the first aluminum-plastic film away from the second aluminum-plastic film and is connected to the first aluminum-plastic film; a portion of the third aluminum-plastic film is disposed on the side of the second aluminum-plastic film away from the first aluminum-plastic film and is connected to the second aluminum-plastic film, so as to wrap the sealing area.

[0011] In some embodiments, the third aluminum-plastic film includes a first straight section, a second straight section, and a transition connection section; The first straight section is located on the side of the first aluminum-plastic film away from the second aluminum-plastic film; The second straight section is located on the side of the second aluminum-plastic film away from the first aluminum-plastic film; One end of the transition connecting segment is connected to the first straight segment, and the other end of the transition connecting segment is connected to the second straight segment.

[0012] In some embodiments, the first aluminum-plastic film includes a first PP layer, a first Al layer and a first nylon layer arranged sequentially along a direction away from the second aluminum-plastic film, and the second aluminum-plastic film includes a second PP layer, a second Al layer and a second nylon layer arranged sequentially along a direction away from the first aluminum-plastic film; The first straight section includes a first straight PP layer, a first straight Al layer and a first straight nylon layer arranged sequentially along the direction away from the first aluminum-plastic film, wherein the first straight PP layer is connected to the first nylon layer; The second straight section includes a second straight PP layer, a second straight Al layer and a second straight nylon layer arranged sequentially along the direction away from the second aluminum-plastic film, wherein the second straight PP layer is connected to the second nylon layer.

[0013] In some embodiments, the thickness of the first PP layer is 12-25 μm; and / or The thickness of the first Al layer is 35-40 μm; and / or The thickness of the first nylon layer is 40-80 μm; and / or The thickness of the second PP layer is 12-25 μm; and / or The thickness of the second Al layer is 35-40 μm; and / or The thickness of the second nylon layer is 40-80 μm; and / or The thickness of the first straight section is 70-115 μm; and / or The thickness of the second straight section is 70-115 μm.

[0014] In some embodiments, the first aluminum-plastic film further includes a third Al layer and a third PP layer stacked together, wherein the third Al layer is connected to the first nylon layer; and the third PP layer is connected to the first flat PP layer. The second aluminum-plastic film further includes a fourth Al layer and a fourth PP layer stacked together, wherein the fourth Al layer is connected to the second nylon layer; and the fourth PP layer is connected to the second flat PP layer.

[0015] In some embodiments, the thickness of the third Al layer is 35-40 μm; and / or The thickness of the third PP layer is 12-25 μm; and / or The thickness of the fourth Al layer is 35-40 μm; and / or The thickness of the fourth PP layer is 12-25 μm.

[0016] This utility model also provides a battery.

[0017] The battery of this utility model embodiment includes a battery cell and a soft-pack casing as described in the above embodiment. The battery cell includes a battery cell body and a tab connected to the battery cell body at one end. The other end of the tab extends through the sealing area and the reinforcing structure to the outside of the soft-pack casing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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.

[0019] Figure 1 This is a schematic diagram of the structure of the soft-pack shell according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the sealing area of ​​the soft-pack shell according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the sealing area of ​​the soft-pack shell according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the battery structure according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the battery according to an embodiment of the present invention.

[0020] In the picture: 100. Soft-pack casing; 200. Battery; 1. Shell body; 101. Sealing area; 1011. Sealing area; 1012. First unsealed area; 1013. Second unsealed area; 2. Strengthen the structure; 3. First aluminum-plastic film; 301. First PP layer; 302. First Al layer; 303. First nylon layer; 304. Third Al layer; 305. Third PP layer; 4. Second aluminum-plastic film; 401. Second PP layer; 402. Second Al layer; 403. Second nylon layer; 404. Fourth Al layer; 405. Fourth PP layer; 5. Third aluminum-plastic film; 501, First straight section; 5011, First straight PP layer; 5012, First straight Al layer; 5013, First straight nylon layer; 502, Second straight section; 5021, Second straight PP layer; 5022, Second straight Al layer; 5023, Second straight nylon layer; 503. Transition connecting section; 6. Battery cell; 601. Battery cell body; 602. Electrode tab. Detailed Implementation

[0021] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal encapsulation of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In order to solve the problem of low sealing strength of the soft shell 100 in the related technology, the present invention provides a soft shell 100 that can greatly improve the sealing strength of the soft shell 100 without increasing the area of ​​the sealing area 1011.

[0025] The soft-shell housing 100 of this utility model embodiment includes a housing body 1 and a reinforcing structure 2.

[0026] The housing body 1 has a receiving cavity for accommodating the battery cell 6 and a sealing area 101 for sealing the receiving cavity. Meanwhile, the reinforcing structure 2 wraps around the sealing area 101 and is connected to the sealing area 101.

[0027] The soft-pack housing 100 of this utility model embodiment can further seal the sealing area 101 of the housing body 1 by providing a reinforcing structure 2 that wraps the sealing area 101 of the sealing area 101 used for sealing the accommodating cavity, thereby greatly improving the sealing strength of the soft-pack housing 100 of this utility model embodiment.

[0028] Therefore, the soft housing 100 of this utility model embodiment can greatly improve the sealing strength of the soft housing 100 without increasing the area of ​​the sealing area 1011.

[0029] In some embodiments, the sealing area 101 includes a sealing area 1011, a first unsealed area 1012, and a second unsealed area 1013; the first unsealed area 1012 is located on the side of the sealing area 1011 close to the receiving cavity, and the second unsealed area 1013 is located on the side of the sealing area 1011 away from the receiving cavity.

[0030] It is understandable that the sealing area 1011 is the area where the hot press head of the hot press device performs hot pressing, and the first unsealed area 1012 and the second unsealed area 1013 are the areas where the hot press head of the hot press device does not perform hot pressing.

[0031] By setting a first unsealed area 1012 and a second unsealed area 1013 on both sides of the sealing area 101 of the sealing area 101, the hot press head of the hot press device can perform hot press on the sealing area 101, thereby improving the tolerance of the sealing area 101.

[0032] Preferably, the width of the edge sealing area 101 is 1.4-2.0 mm; The width of the edge sealing area 101 can be 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, or 2.0mm.

[0033] Preferably, the width of the sealing area 1011 is 0.8-1.2mm.

[0034] The width of the sealing area 1011 can be 0.8mm, 0.9mm, 1.0mm, 1.1mm, or 1.2mm.

[0035] By setting the width of the edge sealing area and the width of the sealing area to the range described above, the soft-pack shell of this utility model can avoid the edge sealing area occupying too much volume space of the soft-pack shell, while also ensuring the structural strength of the edge sealing area.

[0036] In some embodiments, the sealing area 101 includes a first aluminum-plastic film 3 and a second aluminum-plastic film 4 stacked together, and the reinforcing structure 2 is a third aluminum-plastic film 5. A portion of the third aluminum-plastic film 5 is located on the side of the first aluminum-plastic film 3 away from the second aluminum-plastic film 4 and is connected to the first aluminum-plastic film 3; a portion of the third aluminum-plastic film 5 is located on the side of the second aluminum-plastic film 4 away from the first aluminum-plastic film 3 and is connected to the second aluminum-plastic film 4, so as to wrap the sealing area 101.

[0037] like Figure 2 As shown, the third aluminum-plastic film 5 can be bent into a U-shaped structure, so that a portion of the third aluminum-plastic film 5 is located on the side of the first aluminum-plastic film 3 away from the second aluminum-plastic film 4, and a portion of the third aluminum-plastic film 5 is located on the side of the second aluminum-plastic film 4 away from the first aluminum-plastic film 3. This allows a portion of the third aluminum-plastic film 5 to be connected to the first aluminum-plastic film 3, and also allows a portion of the third aluminum-plastic film 5 to be connected to the second aluminum-plastic film 4. This further seals the sealing area 101 of the shell body 1, thereby greatly improving the sealing strength of the soft shell 100 of this utility model embodiment.

[0038] In some embodiments, the third aluminum-plastic film 5 includes a first straight section 501, a second straight section 502, and a transition connecting section 503; the first straight section 501 is disposed on the side of the first aluminum-plastic film 3 away from the second aluminum-plastic film 4; the second straight section 502 is disposed on the side of the second aluminum-plastic film 4 away from the first aluminum-plastic film 3; one end of the transition connecting section 503 is connected to the first straight section 501, and the other end of the transition connecting section 503 is connected to the second straight section 502.

[0039] like Figure 2 As shown, the third aluminum-plastic film 5 can be bent into a U-shaped structure, so that a portion of the third aluminum-plastic film 5 is disposed on the side of the first aluminum-plastic film 3 away from the second aluminum-plastic film 4 to form a first straight section 501, and a portion of the third aluminum-plastic film 5 is disposed on the side of the second aluminum-plastic film 4 away from the first aluminum-plastic film 3 to form a second straight section 502. The third aluminum-plastic film 5 connecting these two portions of the third aluminum-plastic film 5 forms a transition connecting section 503, thereby connecting the first straight section 501 to the first aluminum-plastic film 3, and also connecting the second straight section 502 to the second aluminum-plastic film 4, thereby further sealing the sealing area 101 of the shell body 1, and thus greatly improving the sealing strength of the soft shell 100 of this utility model embodiment.

[0040] In some embodiments, the first aluminum-plastic film 3 includes a first PP layer 301, a first Al layer 302, and a first nylon layer 303 arranged sequentially in a direction away from the second aluminum-plastic film 4; the second aluminum-plastic film 4 includes a second PP layer 401, a second Al layer 402, and a second nylon layer 403 arranged sequentially in a direction away from the first aluminum-plastic film 3; the first straight section 501 includes a first straight PP layer 5011, a first straight Al layer 5012, and a first straight nylon layer 5013 arranged sequentially in a direction away from the first aluminum-plastic film 3, wherein the first straight PP layer 5011 is connected to the first nylon layer 303; the second straight section 502 includes a second straight PP layer 5021, a second straight Al layer 5022, and a second straight nylon layer 5023 arranged sequentially in a direction away from the second aluminum-plastic film 4, wherein the second straight PP layer 5021 is connected to the second nylon layer 403.

[0041] It is understood that in this application, PP refers to polypropylene and Al refers to aluminum.

[0042] Preferably, the thickness of the first PP layer 301 is 12-25 μm. The thickness of the first PP layer 301 can be 12μm, 13μm, 14μm, 15μm, 16μm, 17μm, 18μm, 19μm, 20μm, 21μm, 22μm, 23μm, 24μm, or 25μm.

[0043] By setting the thickness of the first PP layer 301 to the above range, the consumption of the first PP layer 301 can be reduced while ensuring the strength of the sealing area, thereby reducing costs.

[0044] Preferably, the thickness of the first Al layer 302 is 35-40 μm; The thickness of the first Al layer 302 can be 35μm, 36μm, 37μm, 38μm, 39μm, or 40μm.

[0045] By setting the thickness of the first Al layer 302 to the range described above, the consumption of the first Al layer 302 can be reduced while ensuring the strength of the sealing area, thereby reducing costs.

[0046] Preferably, the thickness of the first nylon layer 303 is 40-80 μm; The thickness of the first nylon layer 303 can be 40μm, 41μm, 42μm, 43μm, 44μm, 45μm, 46μm, 47μm, 48μm, 49μm, 50μm, 51μm, 52μm, 53μm, 54μm, 55μm, 56μm, 57μm, 58μm, 59μm, 60μm, 61μm, 62μm, 63μm, 64μm, 65μm, 66μm, 67μm, 68μm, 69μm, 70μm, 71μm, 72μm, 73μm, 74μm, 75μm, 76μm, 77μm, 78μm, 79μm, or 80μm.

[0047] By setting the thickness of the first nylon layer 303 to the range described above, the consumption of the first nylon layer 303 can be reduced while ensuring the strength of the edge sealing area, thereby reducing costs.

[0048] Preferably, the thickness of the second PP layer 401 can be 12-25 μm; The thickness of the second PP layer 401 is 12μm, 13μm, 14μm, 15μm, 16μm, 17μm, 18μm, 19μm, 20μm, 21μm, 22μm, 23μm, 24μm, and 25μm.

[0049] By setting the thickness of the second PP layer 401 to the range described above, the consumption of the second PP layer 401 can be reduced while ensuring the strength of the sealing area, thereby reducing costs.

[0050] Preferably, the thickness of the second Al layer 402 can be 35-40 μm; The thickness of the second Al layer 402 can be 35μm, 36μm, 37μm, 38μm, 39μm, or 40μm.

[0051] By setting the thickness of the second Al layer 402 to the range described above, the consumption of the second Al layer 402 can be reduced while ensuring the strength of the sealing area, thereby reducing costs.

[0052] Preferably, the thickness of the second nylon layer 403 is 40-80 μm.

[0053] The thickness of the second nylon layer 403 can be 40μm, 41μm, 42μm, 43μm, 44μm, 45μm, 46μm, 47μm, 48μm, 49μm, 50μm, 51μm, 52μm, 53μm, 54μm, 55μm, 56μm, 57μm, 58μm, 59μm, 60μm, 61μm, 62μm, 63μm, 64μm, 65μm, 66μm, 67μm, 68μm, 69μm, 70μm, 71μm, 72μm, 73μm, 74μm, 75μm, 76μm, 77μm, 78μm, 79μm, or 80μm.

[0054] By setting the thickness of the second nylon layer 403 to the range described above, the consumption of the second nylon layer 403 can be reduced while ensuring the strength of the edge sealing area, thereby reducing costs.

[0055] Preferably, the thickness of the first straight section 501 is 70-115 μm.

[0056] Preferably, the thickness of the first straight section 501 can be 70μm, 72μm, 74μm, 76μm, 78μm, 80μm, 82μm, 84μm, 86μm, 88μm, 90μm, 92μm, 94μm, 96μm, 98μm, 100μm, 102μm, 104μm, 106μm, 108μm, 110μm, 112μm, 114μm, or 115μm.

[0057] By setting the thickness of the first straight section 501 to the range described above, the consumption of the first straight section 501 can be reduced while ensuring the strength of the edge sealing area, thereby reducing costs.

[0058] Preferably, the thickness of the second straight section 502 is 70-115 μm.

[0059] Preferably, the thickness of the second straight section 502 can be 70μm, 72μm, 74μm, 76μm, 78μm, 80μm, 82μm, 84μm, 86μm, 88μm, 90μm, 92μm, 94μm, 96μm, 98μm, 100μm, 102μm, 104μm, 106μm, 108μm, 110μm, 112μm, 114μm, or 115μm.

[0060] By setting the thickness of the second straight section 502 to the range described above, the consumption of the second straight section 502 can be reduced while ensuring the strength of the edge sealing area, thereby reducing costs.

[0061] In some embodiments, the first aluminum-plastic film 3 further includes a third Al layer 304 and a third PP layer 305 stacked together, wherein the third Al layer 304 is connected to the first nylon layer 303; and the third PP layer 305 is connected to the first flat PP layer 5011. The second aluminum-plastic film 4 also includes a fourth Al layer 404 and a fourth PP layer 405 stacked together. The fourth Al layer 404 is connected to the second nylon layer 403; the fourth PP layer 405 is connected to the second flat PP layer 5021.

[0062] Preferably, the thickness of the third Al layer 304 is 35-40 μm; The thickness of the third Al layer 304 can be 35μm, 36μm, 37μm, 38μm, 39μm, or 40μm.

[0063] By setting the thickness of the third Al layer 304 to the range mentioned above, the consumption of the third Al layer 304 can be reduced while ensuring the strength of the edge sealing area, thereby reducing costs.

[0064] Preferably, the thickness of the third PP layer 305 is 12-25 μm; The thickness of the third PP layer 305 can be 12μm, 13μm, 14μm, 15μm, 16μm, 17μm, 18μm, 19μm, 20μm, 21μm, 22μm, 23μm, 24μm, or 25μm.

[0065] By setting the thickness of the third PP layer 305 to the above range, the consumption of the third PP layer 305 can be reduced while ensuring the strength of the sealing area, thereby reducing costs.

[0066] Preferably, the thickness of the fourth Al layer 404 is 35-40 μm; The thickness of the fourth Al layer 404 can be 35μm, 36μm, 37μm, 38μm, 39μm, or 40μm.

[0067] By setting the thickness of the fourth Al layer 404 to the range mentioned above, the consumption of the fourth Al layer 404 can be reduced while ensuring the strength of the edge sealing area, thereby reducing costs.

[0068] Preferably, the thickness of the fourth PP layer 405 is 12-25 μm.

[0069] The thickness of the fourth PP layer 405 can be 12μm, 13μm, 14μm, 15μm, 16μm, 17μm, 18μm, 19μm, 20μm, 21μm, 22μm, 23μm, 24μm, or 25μm.

[0070] By setting the thickness of the fourth PP layer 405 to the above range, the consumption of the fourth PP layer 405 can be reduced while ensuring the strength of the edge sealing area, thereby reducing costs.

[0071] This utility model also provides a battery 200.

[0072] The battery 200 of this embodiment includes a battery cell 6 and a soft-pack casing 100 as described in the above embodiment.

[0073] The battery cell 6 includes a battery cell body 601 and a tab 602 connected to the battery cell body 601 at one end. The other end of the tab 602 extends through the sealing area 101 and the reinforcing structure 2 to the outside of the soft-pack shell 100.

[0074] Understandably, the first PP layer 301 of the first aluminum-plastic film 3 and the second PP layer 401 of the second aluminum-plastic film 4 in the sealing area 101 can form a fused body connecting the first aluminum-plastic film 3 and the second aluminum-plastic film 4 under the hot pressing of the hot pressing head of the hot pressing mechanism. The area of ​​the sealing area 101 corresponding to the hot pressing head can be understood as the sealing area 1011, and the area in the sealing area 101 that does not correspond to the hot pressing head can be understood as the unsealed area. As shown in the figure, the unsealed area includes the first unsealed area 1012 and the second unsealed area 1013, which are respectively located on both sides of the sealing area 1011.

[0075] Furthermore, when the other end of the tab 602 passes through the sealing area 101, it actually passes through the sealing area 1011. During the processing, the tab 602 of the battery cell 6 can be placed between the first aluminum-plastic film 3 and the second aluminum-plastic film 4. The first aluminum-plastic film 3 and the second aluminum-plastic film 4 are hot-pressed. On the one hand, the first aluminum-plastic film 3 and the second aluminum-plastic film 4 can be connected. On the other hand, the part of the tab 602 corresponding to the first aluminum-plastic film 3 and the second aluminum-plastic film 4 can be located in the sealing area 1011, so as to achieve the effect that the other end of the tab 602 passes through the sealing area 1011.

[0076] Meanwhile, in order to facilitate the other end of the tab 602 to pass through the reinforcing structure 2, a perforation can be provided on the third aluminum-plastic film 5 at the position corresponding to the tab 602 for the other end of the tab 602 to pass through. This allows the third aluminum-plastic film 5 to further seal the sealing area 101 without affecting the tab 602 of the battery cell 6.

[0077] Specifically, a perforation for the other end of the tab 602 to pass through is provided on the transition connection section 503. That is, part of the tab 602 is sandwiched between the first aluminum-plastic film 3 and the second aluminum-plastic film 4, and the other end of the tab 602 extends through the perforation on the transition connection section 503 to the outside of the soft housing.

[0078] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, 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. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A soft-pack housing, characterized in that, include: The housing body (1) has a receiving cavity for accommodating the battery cell (6) and a sealing area (101) for sealing the receiving cavity. A reinforcing structure (2) is provided, which encloses the sealing area (101) and is connected to the sealing area (101).

2. The soft-pack housing according to claim 1, characterized in that, The sealing area (101) includes a sealing area (1011), a first unsealed area (1012), and a second unsealed area (1013); the first unsealed area (1012) is located on the side of the sealing area (1011) close to the receiving cavity, and the second unsealed area (1013) is located on the side of the sealing area (1011) away from the receiving cavity.

3. The soft-pack housing according to claim 2, characterized in that, The width of the sealing area (101) is 1.4-2.0 mm; and / or The width of the sealing area (1011) is 0.8-1.2 mm.

4. The soft-pack housing according to claim 1, characterized in that, The sealing area (101) includes a first aluminum-plastic film (3) and a second aluminum-plastic film (4) stacked together, and the reinforcing structure (2) is a third aluminum-plastic film (5). A portion of the third aluminum-plastic film (5) is disposed on the side of the first aluminum-plastic film (3) away from the second aluminum-plastic film (4) and is connected to the first aluminum-plastic film (3); a portion of the third aluminum-plastic film (5) is disposed on the side of the second aluminum-plastic film (4) away from the first aluminum-plastic film (3) and is connected to the second aluminum-plastic film (4).

5. The soft-pack housing according to claim 4, characterized in that, The third aluminum-plastic film (5) includes a first straight section (501), a second straight section (502), and a transition connecting section (503); The first straight section (501) is located on the side of the first aluminum-plastic film (3) away from the second aluminum-plastic film (4); The second straight section (502) is located on the side of the second aluminum-plastic film (4) away from the first aluminum-plastic film (3); One end of the transition connecting section (503) is connected to the first straight section (501), and the other end of the transition connecting section (503) is connected to the second straight section (502).

6. The soft-pack housing according to claim 5, characterized in that, The first aluminum-plastic film (3) includes a first PP layer (301), a first Al layer (302) and a first nylon layer (303) arranged sequentially in a direction away from the second aluminum-plastic film (4), and the second aluminum-plastic film (4) includes a second PP layer (401), a second Al layer (402) and a second nylon layer (403) arranged sequentially in a direction away from the first aluminum-plastic film (3). The first straight section (501) includes a first straight PP layer (5011), a first straight Al layer (5012) and a first straight nylon layer (5013) arranged sequentially along a direction away from the first aluminum-plastic film (3), wherein the first straight PP layer (5011) is connected to the first nylon layer (303); The second straight section (502) includes a second straight PP layer (5021), a second straight Al layer (5022) and a second straight nylon layer (5023) arranged sequentially along the direction away from the second aluminum-plastic film (4), wherein the second straight PP layer (5021) is connected to the second nylon layer (403).

7. The soft-pack housing according to claim 6, characterized in that, The thickness of the first PP layer (301) is 12-25 μm; and / or The thickness of the first Al layer (302) is 35-40 μm; and / or The thickness of the first nylon layer (303) is 40-80 μm; and / or The thickness of the second PP layer (401) is 12-25 μm; and / or The thickness of the second Al layer (402) is 35-40 μm; and / or The thickness of the second nylon layer (403) is 40-80 μm; and / or The thickness of the first straight segment (501) is 70-115 μm; and / or The thickness of the second straight section (502) is 70-115 μm.

8. The soft-pack housing according to claim 6, characterized in that, The first aluminum-plastic film (3) further includes a third Al layer (304) and a third PP layer (305) stacked together, wherein the third Al layer (304) is connected to the first nylon layer (303); and the third PP layer (305) is connected to the first flat PP layer (5011). The second aluminum-plastic film (4) further includes a fourth Al layer (404) and a fourth PP layer (405) stacked together. The fourth Al layer (404) is connected to the second nylon layer (403); the fourth PP layer (405) is connected to the second flat PP layer (5021).

9. The soft-pack housing according to claim 8, characterized in that, The thickness of the third Al layer (304) is 35-40 μm; and / or The thickness of the third PP layer (305) is 12-25 μm; and / or The thickness of the fourth Al layer (404) is 35-40 μm; and / or The thickness of the fourth PP layer (405) is 12-25 μm.

10. A battery (200), characterized in that, The battery includes a battery cell (6) and a soft-pack housing as described in any one of claims 1-9. The battery cell (6) includes a battery cell body (601) and a tab (602) connected at one end to the battery cell body (601). The other end of the tab (602) extends through the sealing area (101) and the reinforcing structure (2) to the outside of the soft-pack housing.

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