Battery and electronic equipment
Through the bending design of the top and side sealing edges of the battery, a unique packaging system is created, which solves the problems of traditional batteries taking up large space and insufficient battery life, and achieves higher energy density and longer battery life.
Patent Information
- Application Number
- CN202423187786.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Traditional batteries are large in size and occupy valuable internal layout area, which hinders the miniaturization of electronic devices. Moreover, when the size is reduced, the battery capacity decreases, resulting in a decrease in battery life.
By designing a battery, the top sealing edge is bent toward the top wall, the side sealing edge is gathered inward, and the connecting part and the sealing edge work together to compress the corner space of the battery cell, forming a unique packaging system, increasing energy density and reducing processing interference.
It achieves the goal of increasing battery energy density without increasing volume, extending device life, enhancing portability, simplifying battery cell processing, and improving structural stability and safety.
Smart Images
Figure CN223471630U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the battery field, specifically, especially, it relates to a battery and electronic equipment. BACKGROUND
[0002] Today, with the rapid development of global technology, portable electronic devices have become an indispensable part of modern life. From smartphones to smartwatches, to virtual reality headsets, consumers' love for these small but powerful devices is growing, giving birth to an unprecedented miniaturization era. However, the trend of miniaturization presents new challenges to battery technology - it becomes increasingly difficult to provide durable and stable power support in a limited space. Existing batteries, especially those with larger size and lower energy density, cannot keep up with this rapid evolution, and they have become the "Achilles' heel" that limits the further miniaturization of electronic devices.
[0003] In order to accommodate a more diverse range of functional modules, device manufacturers have to squeeze every inch of available space inside the extremely compact body. However, traditional batteries often take up valuable internal layout area due to their large size, severely hindering the overall miniaturization process of the device.
[0004] Despite efforts to reduce the size, sacrificing battery capacity has greatly compromised the user's battery life experience, causing so-called "battery anxiety", i.e. users' concerns about sudden power failure of the device, which has seriously affected the user experience and satisfaction.
[0005] To address this problem, researchers and engineers are actively exploring innovative battery solutions, working to develop new batteries with higher energy density and thinner design, striving to achieve true miniaturization without compromising performance. SUMMARY
[0006] Therefore, the utility model provides a battery and electronic equipment, the top edge of the top sealing part is folded towards the top wall, and the side of the top sealing part is folded inward, which greatly reduces the space occupation of the corner of the battery cell, saves space, and enables the battery to have higher energy density without increasing the size. For devices that are critical to every millimeter of space, such as smartphones, smartwatches, and even electric vehicle powertrains, it means longer battery life and better portability.
[0007] The utility model achieves the above-mentioned purposes through the following technical solutions:
[0008] A battery comprises an electrode assembly, a tab and a packaging bag, the packaging bag comprises a main body part, a top sealing edge part, a side sealing edge part and a connecting part, the main body part comprises a bottom wall, a side wall and a top wall, the side wall is connected with the bottom wall and the top wall respectively, the tab passes through the top sealing edge part and extends out of the packaging bag, the top sealing edge part is connected to the top wall and is bent towards the top wall, the side sealing edge part is connected to the side wall and is bent towards the side wall, the top sealing edge part and the side sealing edge part are connected with the connecting part respectively, the connecting part comprises a first connecting part and a second connecting part connected in sequence, the first connecting part is connected with the side sealing edge part and is bent towards the top wall, and the second connecting part is connected with the top sealing edge part.
[0009] The connecting part cooperates with the top sealing edge part and the side sealing edge part to create a unique packaging system, the bending of the top sealing edge part towards the top wall and the inward folding of the side part of the top sealing edge part together reduce the height of the corner position at the top of the battery cell, greatly compressing the space occupation of the corner of the battery cell and realizing unprecedented space saving. This enables the battery to have higher energy density without increasing the volume, which means longer endurance and better portability for devices such as smartphones, smartwatches and even electric vehicle power assemblies, which are crucial for every millimeter of space. At the same time, the first connecting part is connected with the side sealing edge part and is bent, so that the outer edge of the corner position at the top of the battery cell is inwardly folded to the side surface of the battery cell, and in the usual top sealing folding structure, the outer edge of the corner position at the top of the battery cell is flush with the side surface of the battery cell. The inward folding of the outer edge of the corner position of the battery cell greatly facilitates the subsequent processing of the battery cell and reduces the occurrence of space interference phenomena that may occur during subsequent processing of the battery cell.
[0010] Preferably, the first connecting part and the second connecting part form a first folded edge, the opening of the first folded edge is inclined towards the top wall, the connecting part has an edge right angle, and the first folded edge does not pass through the edge right angle. The included angle of the first folded edge is 0°, or the front end face of the first connecting part and the front end face of the second connecting part form a first folded angle, and the included angle of the first folded angle is greater than 90°
[0011] The first fold edge is formed by the intersection of the first connecting part and the second connecting part, and the opening of the first fold edge is inclined towards the top wall, forming a unique structure with an angle of 0°. The selection of this angle not only ensures the tightness of the packaging structure, but also maximizes the space occupation, allowing the battery to perform optimally in a more narrow environment. Not only does it physically enhance the stability of the cell, but it also injects more flexibility into the overall framework of the battery, allowing it to more effectively disperse stress points when faced with external pressure, avoiding the risk of damage caused by local stress concentration. The first fold edge does not pass through the straight angle of the edge, which can further reduce the height of the corner of the cell top, further compress the space occupation of the corner of the cell, and realize space saving. In another case, the front end surface of the first connecting part and the front end surface of the second connecting part form a first fold angle, and the included angle of the first fold angle is greater than 90°, at this time the first connecting part is inclined to form a curved surface and is bent with the side sealing edge part, so that the corner structure is more stable and has better support.
[0012] Preferably, the first connecting part and the side sealing edge part form a second fold edge, and the opening of the second fold edge is directed towards the top wall, and the included angle of the second fold edge is a, wherein 90° < a < 180°.
[0013] The second fold edge is composed of the first connecting part and the side sealing edge part, and its opening is directed towards the top wall, and the included angle ranges between 90° and 180°.
[0014] Preferably, the battery further comprises a protective part, and the protective part wraps the first fold edge and / or the second fold edge and / or the top sealing edge part.
[0015] The protective part wraps the first fold edge, the second fold edge and the top sealing edge part, forming a multi-layer protective network. This not only provides a physical barrier to the surface of the battery, but also serves as the first line of defense against potential damage, preventing external factors from eroding the internal structure of the battery from the source. Especially in extreme environments, such as high temperature, humidity or strong vibration places, the presence of the protective part is particularly crucial, as it can effectively block water vapor penetration and prevent corrosive gas erosion, ensuring that the battery is in optimal working condition for a long time.
[0016] Preferably, the battery further comprises a sealing glue, and the sealing glue wraps the first connecting part, the second connecting part and the top sealing edge part away from the top wall.
[0017] The sealing glue covers the first connecting part, the second connecting part and the top sealing edge part away from the top wall, forming a seamless sealing interface, which not only effectively isolates moisture and dust, but also ensures that the internal components of the battery are not affected by the external environment, greatly reducing the risk of short circuit and other electrical faults.
[0018] Preferably, the number of the side sealing edge portions is two, and the number of the connecting portions is two, and the two connecting portions are oppositely arranged.
[0019] The two side sealing edge portions and the two groups of connecting portions are matched with each other to form a more solid peripheral frame, effectively disperses external impact force, protects the battery cell from direct impact, and improves the toughness and safety of the overall structure.
[0020] An electronic device, characterized by comprising the battery as described above.
[0021] The utility model discloses compared with prior art's beneficial effect is:
[0022] The battery, the synergies of the connecting portion and the top sealing edge portion and the side sealing edge portion create a unique packaging system, the top sealing edge portion is folded towards the top wall, and the side portion of the top sealing edge portion is inwardly folded, and under the joint action, the height of the top corner of the battery cell is reduced, the space occupation of the corner of the battery cell is greatly compressed, and unprecedented space saving is realized. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.
[0024] Figure 1 It is a structure diagram of the battery of the utility model embodiment 1.
[0025] Figure 2 It is Figure 1 It is an enlarged view of the A area.
[0026] Figure 3 It is a structure diagram of the battery of the utility model embodiment 2.
[0027] Figure 4 It is Figure 3 It is an enlarged view of the B area. DETAILED DESCRIPTION
[0028] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0029] Therefore, the detailed description of the embodiments of the present application provided below in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.
[0030] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the embodiments of the present application, it needs to be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0031] It should be noted that: the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0032] The technical solutions in the present application will be described below with reference to the drawings. Embodiment 1
[0033] The embodiment provides a battery, which comprises an electrode assembly, a tab 100 and a packaging bag, the packaging bag comprises a main body part 200, a top sealing edge part 300, a side sealing edge part 400 and a connecting part 500, the main body part 200 comprises a bottom wall 210, side walls 220 and a top wall 230, the side walls 220 are connected with the bottom wall 210 and the top wall 230 respectively, the tab 100 passes through the top sealing edge part 300 and extends to outside of the packaging bag, the top sealing edge part 300 is connected to the top wall 230 and is bent towards the top wall 230, the side sealing edge part 400 is connected to the side wall 220 and is bent towards the side wall 220, the top sealing edge part 300 and the side sealing edge part 400 are connected with the connecting part 500 respectively, the connecting part 500 comprises a first connecting part 510 and a second connecting part 520 connected in sequence, the first connecting part 510 is connected with the side sealing edge part 400 and is bent towards the top wall 230, and the second connecting part 520 is connected with the top sealing edge part 300.
[0034] The connecting part 500 cooperates with the top sealing edge part 300 and the side sealing edge part 400 to create a unique packaging system, the bending of the top sealing edge part 300 towards the top wall 230 and the inward folding of the side part of the top sealing edge part 300 jointly reduce the height of the corner position of the top of the battery cell, greatly compress the space occupation of the corner of the battery cell and realize unprecedented space saving. This enables the battery to have higher energy density without increasing the volume, which means longer endurance and better portability for devices such as smart phones, smart watches and even electric vehicle power assemblies, which are very important for each millimeter of space. Meanwhile, the outward edge of the corner position of the top of the battery cell is inwardly folded to the side of the battery cell due to the connection and bending of the first connecting part with the side sealing edge part, and the outward edge of the corner position of the top of the battery cell is flush with the side of the battery cell in the usual top sealing folding structure. The inward folding of the outward edge of the corner position of the battery cell can greatly facilitate the subsequent processing of the battery cell and reduce the occurrence of space interference in the subsequent processing of the battery cell.
[0035] In the embodiment, the first connecting part 510 and the second connecting part 520 form a first folding edge 504, the opening of the first folding edge is inclined towards the top wall 230, the connecting part 500 has a straight edge right angle 505, and the first folding edge 504 does not pass through the straight edge right angle 505. The included angle of the first folding edge is 0°.
[0036] The first fold edge is formed by the intersection of the first connecting portion 510 and the second connecting portion 520, and the opening thereof is inclined toward the top wall 230, forming a unique structure with an angle of 0°. The selection of this angle not only ensures the tightness of the packaging structure, but also maximizes the space occupation, allowing the battery to perform optimally in a more narrow environment. Not only does it physically enhance the stability of the cell, but it also injects more flexibility into the overall framework of the battery, allowing it to more effectively disperse stress points when faced with external pressure, avoiding the risk of damage caused by local stress concentration. The first fold edge does not pass through the straight angle of the edge, which can further reduce the height of the corner of the cell top, further compress the space occupation of the cell corner, and realize space saving.
[0037] In this embodiment, the first connecting portion 510 and the side sealing portion 400 form a second fold edge 503, the opening of the second fold edge 503 is inclined toward the top wall 230, and the included angle of the second fold edge 503 is a, wherein 90° < a < 180°.
[0038] The second fold edge 503 is composed of the first connecting portion 510 and the side sealing portion 400, and its opening is inclined toward the top wall 230, and the included angle ranges between 90° and 180°.
[0039] In this embodiment, the number of side sealing portions 400 is two, and the number of connecting portions 500 is two, and the two connecting portions 500 are oppositely arranged.
[0040] The two side sealing portions 400 and the corresponding two groups of connecting portions 500 cooperate to form a more solid peripheral frame, effectively dispersing external impact forces, protecting the cell from direct impact, and improving the toughness and safety of the overall structure. Embodiment 2
[0041] The embodiment provides a battery, which comprises an electrode assembly, a tab 100 and a packaging bag, the packaging bag comprising a main body portion 200, a top sealing portion 300, a side sealing portion 400 and a connecting portion 500, the main body portion 200 comprising a bottom wall 210, a side wall 220 and a top wall 230, the side wall 220 being connected with the bottom wall 210 and the top wall 230 respectively, the tab 100 passing through the top sealing portion 300 and extending out of the packaging bag, the top sealing portion 300 being connected to the top wall 230 and being bent toward the top wall 230, the side sealing portion 400 being connected to the side wall 220 and being bent toward the side wall 220, the top sealing portion 300 and the side sealing portion 400 being connected with the connecting portion 500 respectively, the connecting portion 500 comprising a first connecting portion 510 and a second connecting portion 520 connected in sequence, the first connecting portion 510 being connected with the side sealing portion 400 and being bent toward the top wall 230, and the second connecting portion 520 being connected with the top sealing portion 300.
[0042] The cooperation of the connecting part 500 and the top sealing edge part 300 and the side sealing edge part 400 creates a unique packaging system. The bending of the top sealing edge part 300 towards the top wall 230, combined with the inward folding of the side part of the top sealing edge part 300, reduces the height of the corner position of the top of the battery cell, greatly compresses the space occupation of the corner of the battery cell, and realizes unprecedented space saving. This enables the battery to have higher energy density without increasing the volume, which means longer battery life and better portability for devices such as smartphones, smartwatches and even electric vehicle power assemblies. At the same time, the first connecting part is connected to the side sealing edge part and is bent, so that the outer edge of the corner position of the top of the battery cell is inwardly folded to the side of the battery cell. In the usual top sealing folding structure, the outer edge of the corner position of the top of the battery cell is flush with the side of the battery cell. The inward folding of the outer edge of the corner position of the battery cell greatly facilitates the subsequent processing of the battery cell and reduces the occurrence of space interference phenomena that may occur during subsequent processing of the battery cell.
[0043] In this embodiment, the first connecting part 510 and the second connecting part 520 form a first folding edge 504, the opening of the first folding edge is inclined towards the top wall 230, the connecting part has a straight edge right angle 505, and the first folding edge 504 does not pass through the straight edge right angle 505. The front end face 501 of the first connecting part and the front end face 502 of the second connecting part form a first folding angle, and the included angle of the first folding angle is greater than 90°.
[0044] The included angle of the first folding edge is greater than 90°, at this time the first connecting part is inclined to form a curved surface and is bent with the side sealing edge part, so that the corner position structure is more stable and has better supportability. The first folding edge does not pass through the straight edge right angle, which can further reduce the height of the corner position of the top of the battery cell, further compress the space occupation of the corner of the battery cell, and realize space saving.
[0045] In this embodiment, the first connecting part 510 and the side sealing edge part 400 form a second folding edge 503, the opening of the second folding edge 503 is inclined towards the top wall 230, and the included angle of the second folding edge 503 is a, wherein 90°<a<180°.
[0046] The second folding edge 503 is composed of the first connecting part 510 and the side sealing edge part 400, and its opening is inclined towards the top wall 230, and the included angle ranges between 90° and 180°.
[0047] In this embodiment, the number of side sealing edge parts 400 is two, and the number of connecting parts 500 is two, and the two connecting parts 500 are oppositely arranged.
[0048] The two side sealing edge parts 400 and the corresponding two groups of connecting parts 500 cooperate with each other to form a more solid peripheral frame, effectively dispersing external impact force, protecting the battery cell from direct impact, and improving the toughness and safety of the overall structure.
[0049] In other embodiments, the battery further comprises a protective portion, which wraps any combination of the first fold, the second fold, and / or the top seal portion.
[0050] The protective portion wraps the first fold, the second fold, and the top seal portion, forming a multi-layer protective net. This not only provides a physical barrier to the surface of the battery, but also serves as the first line of defense against potential damage, eliminating the erosion of external factors on the internal structure of the battery from the source. Especially in extreme environments, such as high temperature, humidity or strong vibration sites, the presence of the protective portion is particularly crucial, as it can effectively block water vapor penetration and prevent corrosive gas erosion, ensuring that the battery is in optimal working condition for a long time.
[0051] In other embodiments, the battery further comprises a sealing glue, which wraps any combination of the first connecting portion, the second connecting portion, and / or the top seal portion, and the position of the sealing glue is located at the end away from the top wall.
[0052] The sealing glue covers the end of the first connecting portion, the second connecting portion, and the top seal portion away from the top wall, forming a seamless sealed interface, which not only effectively isolates moisture and dust, but also ensures that the internal components of the battery are protected from the external environment, even in harsh environments, greatly reducing the risk of short circuit and other electrical failures.
[0053] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A battery, comprising an electrode assembly, a tab, and a packaging bag, the packaging bag comprising a main body portion, a top seal edge portion, a side seal edge portion, and a connecting portion, the main body portion comprising a bottom wall, a side wall, and a top wall, the side wall being connected to the bottom wall and the top wall respectively, the tab passing through the top seal edge portion and extending out of the packaging bag, characterized in that, the top seal edge portion is connected to the top wall and is bent towards the top wall, the side seal edge portion is connected to the side wall and is bent towards the side wall, the top seal edge portion and the side seal edge portion are connected to the connecting portion respectively, the connecting portion comprises a first connecting portion and a second connecting portion connected in sequence, the first connecting portion is connected to the side seal edge portion and is bent towards the top wall, the second connecting portion is connected to the top seal edge portion. The first connecting portion and the second connecting portion form a first fold edge, an opening of the first fold edge is inclined towards the top wall, the connecting portion has an edge right angle, the first fold edge does not pass through the edge right angle.
2. The battery of claim 1, wherein, An included angle of the first fold edge is 0°.
3. The battery of claim 2, wherein, A front end surface of the first connecting portion and a front end surface of the second connecting portion form a first fold angle, an included angle of the first fold angle is greater than 90°.
4. The battery of claim 2, wherein, The first connecting portion and the side seal edge portion form a second fold edge, an opening of the second fold edge is towards the top wall, an included angle of the second fold edge is a, wherein 90° 5. The battery of claim 2, wherein, The battery further comprises a protective portion, the protective portion wrapping the first fold edge and / or the second fold edge and / or the top seal edge portion.
6. The battery of claim 5, wherein, The battery further comprises a sealant, the sealant wrapping the first connecting portion, the second connecting portion, and an end of the top seal edge portion away from the top wall.
7. The battery of claim 1, wherein, The number of the side seal edge portions is two, and the number of the connecting portions is two, the two connecting portions being oppositely arranged.
8. The battery of claim 1, wherein, The battery comprises any one of claims 1-8.
9. An electronic device, comprising: