Battery structure and electric device

Abstract

The present disclosure relates to a battery structure and an electric device, the battery structure comprising a battery cell and a tab; the battery cell comprising a main battery cell part and a protruding battery cell part; the tab being electrically connected with the battery cell and being arranged on the main battery cell part and / or the protruding battery cell part; the protruding battery cell part being arranged on one side of the main battery cell part in a first direction; a projection of the protruding battery cell part in the first direction being a first projection, a projection of the main battery cell part in the first direction being a second projection, the first projection partially overlapping the second projection. The protruding battery cell part is arranged protruding on a part of the side of the main battery cell part, so that the protruding battery cell part and the main battery cell part form a "special-shaped" battery structure, and the protruding battery cell part can effectively utilize the "corner space" in the electric device, so that the battery structure can effectively utilize the space of the electric device, improve the utilization rate of the space, and thus improve the capacity of the battery structure and prolong the endurance time of the electric device.

Description

Technical Field

[0001] This disclosure relates to the field of electrical equipment technology, and more specifically, to a battery structure and an electrical device. Background Technology

[0002] As portable electronic devices, such as smartphones, tablets, and wearable devices, become increasingly powerful, their power consumption also increases significantly. To ensure users' battery life experience, increasing device battery capacity has become crucial.

[0003] In related technologies, the regular-shaped batteries of electronic devices often result in wasted space and low space utilization when combined with other components of the device, which in turn leads to a reduction in battery capacity. Utility Model Content

[0004] To overcome the problems existing in related technologies, this disclosure provides a battery structure and an electrical device.

[0005] In a first aspect of this disclosure, a battery structure is provided, the battery structure including a battery cell and electrode tabs; the battery cell includes a main battery cell portion and a protruding battery cell portion; The electrode tab is electrically connected to the battery cell and is disposed on the main battery cell portion and / or the protruding battery cell portion; The protruding battery cell portion is disposed on one side of the main battery cell portion; The projection of the protruding battery cell portion in this direction is the first projection, and the projection of the main battery cell portion in this direction is the second projection. The first projection and the second projection portion overlap.

[0006] The protruding battery cell is located on one side of the main battery cell, and the projection of the protruding battery cell in this direction coincides with a portion of the projection of the main battery cell in this direction. That is, a portion of the protruding battery cell protrudes from one side of the main battery cell, thus creating an "irregular" battery structure. The protruding battery cell can effectively utilize the "leftover space" in the electrical device, thereby making efficient use of the space in the electrical device, improving the space utilization rate, increasing the battery capacity, and extending the battery life of the electrical device.

[0007] In some possible embodiments, the main cell portion includes a first cell body, the first cell body including a first edge segment on one side thereof, the first edge segment extending in a direction; The protruding cell portion includes a second cell body, the second cell body includes a connecting edge segment and a second edge segment, the connecting edge segment connects the first edge segment and the second edge segment; the connecting edge segment extends in a certain direction, and the second edge segment extends in a certain direction; The directions are intersecting.

[0008] The first edge segment and the second edge segment extend along the direction, and the connecting edge segment connects the first edge segment and the second edge segment. Since the connecting edge segment extends along the direction, a shape similar to an "L-shaped step" can be defined on one side of the battery structure, thereby making effective use of the space constructed in a similar "L-shape" and improving the space utilization rate.

[0009] In some possible embodiments, the main battery cell portion further includes a first top sealing edge, and the protruding battery cell portion further includes a connecting top sealing edge and a second top sealing edge; The first top sealing edge extends in a direction and is connected to the first edge segment; the connecting top sealing edge extends in a direction and is connected to the connecting edge segment; the second top sealing edge extends in a direction and is connected to the second edge segment. The connecting top sealing edge connects the first top sealing edge and the second top sealing edge.

[0010] The first top sealing edge protrudes and connects to the first edge segment, the connecting top sealing edge protrudes and connects to the connecting edge segment, and the second top sealing edge protrudes and connects to the second edge segment. Furthermore, the connecting top sealing edge connects to both the first and second top sealing edges. In other words, by setting these three top sealing edges, the head of the battery cell can be effectively sealed, improving the cell's sealing performance. Specifically, the top sealing edges can be adapted to fit the irregularly shaped edges formed by the first and second battery cell bodies.

[0011] In some possible embodiments, the tab is convexly connected to the first top seal edge and / or the second top seal edge in a certain direction; and / or, the tab is convexly connected to the connecting top seal edge in a certain direction.

[0012] The electrode tabs can be connected to different positions on the "irregular" head of the battery cell, allowing for flexible placement and effective utilization of the space at the head. This disclosure does not limit the placement of the electrode tabs. For example, the electrode tabs may include a positive electrode tab and a negative electrode tab, which can be connected to the second top seal and protrude in a certain direction. However, this disclosure does not limit the specific positions of the positive and negative electrode tabs, and they can be adaptively adjusted according to the size of the arrangement space.

[0013] In some possible embodiments, the battery structure further includes a curing colloid bonded to at least a portion of the outer peripheral edge of the main cell portion; and / or, the curing colloid bonded to at least a portion of the outer peripheral edge of the protruding cell portion.

[0014] In this process, a curing colloid is used and bonded to the main battery cell and / or at least part of the outer peripheral edge protruding from the battery cell. The curing colloid is cured from a liquid or paste state to a solid state, which can tightly adhere to the outer peripheral edge. Microscopically, it can effectively fill microscopic pores or gaps, achieving full adhesion with the battery cell. Thus, when the battery cell is subjected to force and the force is transmitted to the curing colloid, the curing colloid can bear the force evenly and play a certain role in energy absorption, shock absorption and impact resistance, effectively protecting the battery cell and preventing stress concentration problems.

[0015] In some possible embodiments, the main battery cell portion includes a first battery cell body and a first top seal edge, wherein the first battery cell body has the first top seal edge on one side, and the cured adhesive is bonded to the first battery cell body and the first top seal edge; And / or, the protruding cell portion includes a second cell body and a protruding top seal, the protruding top seal being disposed on at least a portion of the outer peripheral edge of the second cell body, and the cured adhesive being bonded to the second cell body and the protruding top seal.

[0016] The first battery cell body may have a protruding top sealing edge on one side, and a cured adhesive is bonded to both the first battery cell body and the first top sealing edge. For the cured adhesive, this effectively increases the bonding area to the main battery cell body, improves the bonding strength, and prevents the cured adhesive from detaching. For the first top sealing edge, the cured adhesive can structurally reinforce the first top sealing edge, reducing bending and twisting problems, and effectively supporting the first top sealing edge; and / or, The protruding top seal edge is provided protrudingly on at least part of the outer peripheral edge of the second cell body. For example, the protruding top seal edge may include the aforementioned connecting top seal edge and second top seal edge. The curing adhesive can be bonded to the second cell body, the connecting top seal edge, and the second top seal edge. On the one hand, it strengthens the structure of the protruding top seal edge, reduces the problem of bending and twisting of the protruding top seal edge, and effectively supports the protruding top seal edge. On the other hand, it can increase the area of ​​the curing adhesive bonded to the protruding cell part, improve the bonding strength, and prevent the curing adhesive from falling off.

[0017] In some possible embodiments, the battery cell further includes a first side sealing edge and a second side sealing edge, the first side sealing edge and the second side sealing edge being respectively disposed on both sides of the main battery cell portion, and the direction being intersected with the direction. Wherein, the first side sealing edge is connected to the first top sealing edge, and the cured adhesive is also bonded to the first side sealing edge; and / or, the second side sealing edge is connected to the protruding top sealing edge, and the cured adhesive is also bonded to the second side sealing edge.

[0018] In this process, by bonding the cured adhesive to the first and / or second edge seals, the structural reinforcement of the first and / or second edge seals is enhanced, reducing their bending deformation and effectively providing support and reinforcement. Furthermore, the bonding area of ​​the cured adhesive can be further increased, further improving the stability of the bond.

[0019] In a second aspect of this disclosure, an electrical device is also provided, the electrical device including the battery structure described above.

[0020] In some possible embodiments, the electrical device further includes a main body structure having a receiving groove, the battery structure being disposed within the receiving groove, and at least a portion of the outer periphery of the battery cell being opposite to and spaced apart from the inner sidewall of the receiving groove, with a cured colloid filling at least a portion of the gap.

[0021] The battery structure is installed by forming a receiving groove in the main structure of the electrical equipment and placing the battery structure within the receiving groove. For example, the battery structure can be bonded to the inner bottom wall of the receiving groove using an adhesive layer, but this disclosure does not limit the specific installation method. Furthermore, by filling at least part of the gaps with a cured adhesive, when the battery cell is subjected to force and the force is transmitted to the cured adhesive, the cured adhesive can bear the force evenly and abut against the inner sidewall of the receiving groove, thus playing a certain role in energy absorption, shock absorption, and impact resistance, effectively protecting the battery cell and preventing stress concentration problems.

[0022] In some possible embodiments, the inner wall of the receiving groove is provided with a mating part that can abut and adhere to the cured colloid.

[0023] The mating part can abut and adhere to the cured colloid, so that the force on the cured colloid is evenly transmitted to the mating part, playing a role in energy absorption, shock absorption and impact resistance, effectively protecting the battery cell and preventing stress concentration problems. The mating part can be constructed in any suitable shape and structure, and this disclosure does not limit it.

[0024] In some possible embodiments, the mating portion includes a wall plane that is opposite to and spaced apart from a portion of the outer peripheral edge of the battery cell, the cured adhesive filling the gap, and the cured adhesive forming an adhesive surface capable of adhering to the wall plane.

[0025] The planar bonding method between the adhesive surface and the wall surface ensures the stability of the cured adhesive against the mating part. In addition, the planar bonding method can also reduce the problem of stress concentration.

[0026] In some possible embodiments, the mating portion includes a wall arc surface that is opposite to and spaced apart from a portion of the outer peripheral edge of the battery cell, the cured adhesive fills the gap, and the cured adhesive forms an adhesive arc surface that can adhere to the wall arc surface.

[0027] The method of bonding the curved surface of the adhesive with the curved surface of the wall ensures the stability of the cured adhesive against the mating part. In addition, the method of bonding the curved surfaces can also reduce the problem of stress concentration.

[0028] In some possible embodiments, the mating part includes a mating wall and a slot, the slot being recessed in the mating wall, the mating wall being opposite to a portion of the outer peripheral edge of the battery cell and spaced apart by the gap, the slot communicating with the gap, and the cured adhesive filling the slot and the gap.

[0029] The slot and the gap are connected. When the cured adhesive is placed in the slot and the gap, the cured adhesive in the gap and the cured adhesive in the slot form a single structure. That is, part of the cured adhesive is locked in the slot, achieving a snap-fit ​​with the main structure and preventing the cured adhesive from falling off the main structure. In addition, the mating wall surface and the cured adhesive placed in the gap abut against each other, ensuring the stability of the cured adhesive against the mating part and reducing stress concentration. The mating wall surface can be constructed as a plane or a curved surface; this disclosure does not limit it in this way.

[0030] In some possible embodiments, the slot is configured as a T-slot, the T-slot including a cavity and a neck, the neck communicating with the cavity and the gap; The groove cavity and / or the groove neck are formed with guide slopes to guide the cured colloid into the T-groove.

[0031] The T-groove design effectively prevents the cured adhesive within the groove from detaching, improving the stability of the snap-fit. However, this disclosure does not limit the specific shape of the groove. Additionally, the guide slope formed by the groove cavity and / or neck facilitates the entry of the cured adhesive into the T-groove, effectively guiding it.

[0032] In some possible embodiments, the receiving groove includes a main body groove and a protruding groove that are interconnected, the main body battery cell is disposed in the main body groove, and the protruding battery cell and the electrode are disposed in the protruding groove.

[0033] The shape of the receiving slot can be adapted to the shape of the battery cell for installation, avoiding waste of installation space and improving space utilization.

[0034] In some possible embodiments, the battery structure further includes a battery protection plate disposed within the protruding groove and electrically connected to the tab.

[0035] By placing the battery protection plate inside the protruding groove, the space of the protruding groove is fully utilized, thereby improving space utilization.

[0036] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: the protruding battery cell is disposed on one side of the main battery cell, and the projection of the protruding battery cell in this direction coincides with a portion of the projection of the main battery cell in this direction. That is, a portion of the protruding battery cell protrudes from one side of the main battery cell, so that the protruding battery cell and the main battery cell construct an "irregular" battery structure. The protruding battery cell can effectively utilize the "leftover space" in the electrical device, thereby enabling the battery structure to effectively utilize the space of the electrical device, improve the space utilization rate, and thus increase the capacity of the battery structure and extend the battery life of the electrical device.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0038] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0039] Figure 1 This is a schematic diagram of the cell and electrode structure of a battery structure according to a possible embodiment of the present disclosure.

[0040] Figure 2 This is a schematic diagram of the battery structure according to a first possible embodiment of the present disclosure.

[0041] Figure 3 This is a schematic diagram of the battery structure according to a second possible embodiment of the present disclosure.

[0042] Figure 4 This is a schematic diagram of the battery structure according to a third possible embodiment of the present disclosure.

[0043] Figure 5 This is a schematic diagram of the structure of an electrical device according to a first possible embodiment of the present disclosure.

[0044] Figure 6 This is a schematic diagram of the main structure of the electrical equipment according to a first possible embodiment of this disclosure.

[0045] Figure 7 This is a schematic diagram of the structure of an electrical device according to a second possible embodiment of the present disclosure.

[0046] Figure 8 This is a schematic diagram of the main structure of the electrical equipment according to a second possible embodiment of this disclosure.

[0047] Figure 9 This is a schematic diagram of the structure of an electrical device according to a third possible embodiment of this disclosure.

[0048] Figure 10 This is a schematic diagram of the main structure of the electrical equipment according to a third possible embodiment of this disclosure.

[0049] Figure 11 yes Figure 10 A magnified view of a section at point H.

[0050] Explanation of reference numerals in the attached figures 1. Battery structure; 11. Battery cells; 111. Main cell section; 1111. First cell body; 1112. First edge segment; 1113. First top seal; 112. Protruding cell section; 1121. Second cell body; 1122. Connecting edge section; 1123. Second edge section; 1124. Connecting top seal edge; 1125. Second top seal edge; 1126. Protruding top seal edge; 113. First side sealing; 114. Second side sealing; 12. Electrode; 121. Positive electrode; 122. Negative electrode; 13. Cured colloid; 131. Glue plane; 132. Glue arc surface; 2. Main structure; 20. Receiving tank; 201. Mating part; 2011. Wall plane; 2012. Wall arc surface; 2013. Mating wall surface; 2014. Slot; 2015. Slot cavity; 2016. Slot neck; 2017. Guide slope; 202. Main groove; 203. Protruding groove; 30. Gap; A. First direction; B. Second direction. Detailed Implementation

[0051] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0052] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" refer to the inner and outer contours of a specific structure; directional terms such as "first direction" and "second direction" refer to two intersecting directions, for example, they can be perpendicular, as detailed in the following reference. Figure 1 As shown; the terms used, such as "first" and "second", are only used to distinguish one element from another and do not indicate any order or importance.

[0053] Reference Figures 1 to 4 As shown, this disclosure provides a battery structure 1, which includes a battery cell 11 and a tab 12. The battery cell 11 includes a main battery cell portion 111 and a protruding battery cell portion 112. The tab 12 is electrically connected to the battery cell 11 and is disposed on the main battery cell portion 111 and / or the protruding battery cell portion 112. The protruding battery cell portion 112 is disposed on one side of the main battery cell portion 111 in a first direction A. The projection of the protruding battery cell portion 112 in the first direction A is a first projection, and the projection of the main battery cell portion 111 in the first direction A is a second projection. The first projection and the second projection partially overlap.

[0054] In the above technical solution, the protruding battery cell 112 is disposed on one side of the main battery cell 111 in the first direction A, and the projection of the protruding battery cell 112 in the first direction A coincides with a portion of the projection of the main battery cell 111 in the first direction A. That is, the protruding battery cell 112 protrudes in a portion of the main battery cell 111, so that the protruding battery cell 112 and the main battery cell 111 construct an "irregular" battery structure 1. The protruding battery cell 112 can effectively utilize the "leftover space" in the electrical device, so that the battery structure 1 can effectively utilize the space of the electrical device, improve the space utilization rate, thereby increasing the capacity of the battery structure 1 and extending the battery life of the electrical device.

[0055] Optionally, this disclosure does not specifically limit the shapes of the main battery cell 111 and the protruding battery cell 112. For example, the main battery cell 111 can be a first cuboid, and the protruding battery cell 112 can be a second cuboid, the volume of which is smaller than that of the first cuboid. Alternatively, the projection of the main battery cell 111 in its thickness direction can be a first semicircle, and the projection of the protruding battery cell 112 in its thickness direction can be a second semicircle, with the area of ​​the first semicircle being larger than that of the second semicircle. Furthermore, the main battery cell 111 and the protruding battery cell 112 can be constructed in a flat shape, which is beneficial for a thinner and lighter design.

[0056] Furthermore, the main battery cell 111 and the protruding battery cell 112 described above are constructed as a single unit.

[0057] The aforementioned tab 12 may include a positive tab 121 and a negative tab 122, and the positive tab 121 and the negative tab 122 are electrically connected to the battery cell 11.

[0058] Optionally, the battery structure 1 described above can be a pouch battery. For example, the pouch battery can use an aluminum-plastic composite film constructed of a flexible material as the encapsulation shell of the cell 11. The interior of the cell 11 can include a positive electrode sheet (not shown), a negative electrode sheet (not shown), and a separator (not shown) wound or stacked together and immersed in an electrolyte (not shown). The positive electrode tab 121 described above can be electrically connected to the positive electrode sheet, and the negative electrode tab 122 can be electrically connected to the negative electrode sheet. However, this disclosure does not limit the specific type of battery structure. In other embodiments, the battery structure can also be a hard-shell battery.

[0059] In one implementation, reference Figure 1 As shown, the main battery cell portion 111 includes a first battery cell body 1111, the first battery cell body 1111 includes a first edge segment 1112 on one side of a first direction A, the first edge segment 1112 extends along a second direction B; the protruding battery cell portion 112 includes a second battery cell body 1121, the second battery cell body 1121 includes a connecting edge segment 1122 and a second edge segment 1123, the connecting edge segment 1122 connects the first edge segment 1112 and the second edge segment 1123; the connecting edge segment 1122 extends along the first direction A, and the second edge segment 1123 extends along the second direction B; the first direction A and the second direction B are intersecting.

[0060] In this embodiment, the first edge segment 1112 and the second edge segment 1123 extend along the second direction B, and the connecting edge segment 1122 connects the first edge segment 1112 and the second edge segment 1123. The connecting edge segment 1122 extends along the first direction A, thus defining an "L-shaped step" shape on one side of the battery structure 1 in the first direction A. This allows for effective utilization of the "L-shaped" space, improving space utilization. The first direction A and the second direction B can be perpendicular to each other, but this disclosure does not limit this.

[0061] In another embodiment, refer to Figure 1 As shown, the main battery cell portion 111 further includes a first top sealing edge 1113, and the protruding battery cell portion 112 further includes a connecting top sealing edge 1124 and a second top sealing edge 1125; the first top sealing edge 1113 extends in a first direction A and is connected to the first edge segment 1112, the connecting top sealing edge 1124 extends in a second direction B and is connected to the connecting edge segment 1122, and the second top sealing edge 1125 extends in a first direction A and is connected to the second edge segment 1123; wherein, the connecting top sealing edge 1124 connects the first top sealing edge 1113 and the second top sealing edge 1125.

[0062] In this embodiment, the first top sealing edge 1113 protrudes and connects to the first edge segment 1112 in the first direction A, the connecting top sealing edge 1124 protrudes and connects to the connecting edge segment 1122 in the second direction B, and the second top sealing edge 1125 protrudes and connects to the second edge segment 1123 in the first direction A. The connecting top sealing edge 1124 connects the first top sealing edge 1113 and the second top sealing edge 1125. That is, by providing these three top sealing edges, the head of the battery cell 11 can be effectively sealed and encapsulated, improving the sealing performance of the battery cell 11. In other words, the top sealing edges can be adapted to fit the "irregular" edge formed by the first battery cell body 1111 and the second battery cell body 1121.

[0063] Optionally, refer to Figure 1 As shown, the tab 12 is protrudingly connected to the first top sealing edge 1113 and / or the second top sealing edge 1125 in the first direction A; and / or, the tab 12 is protrudingly connected to the connecting top sealing edge 1124 in the second direction B.

[0064] In this embodiment, the tab 12 can be connected to different positions on the "irregular" head of the battery cell 11, allowing for flexible placement and effective utilization of the space at the head. This disclosure does not limit its placement. For example, the tab 12 may include a positive tab 121 and a negative tab 122, which can be connected to the second top sealing edge 1125 and protrude in the first direction A. However, this disclosure does not limit the specific positions of the positive tab 121 and the negative tab 122, and they can be adaptively adjusted according to the size of the arrangement space.

[0065] In other embodiments, refer to Figures 2 to 4 As shown, the battery structure 1 also includes a curing colloid 13, which is bonded to at least a portion of the outer peripheral edge of the main cell portion 111; and / or, the curing colloid 13 is bonded to at least a portion of the outer peripheral edge of the protruding cell portion 112.

[0066] In this embodiment, a curing colloid 13 is used and bonded to the main battery cell 111 and / or at least part of the outer peripheral edge of the protruding battery cell 112. The curing form of the curing colloid 13 is from liquid or paste to solid, which can tightly adhere to the outer peripheral edge. Microscopically, it can effectively fill microscopic pores or gaps, achieving full adhesion with the battery cell 11. Thus, when the battery cell 11 is subjected to force and the force is transmitted to the curing colloid 13, the curing colloid 13 can be evenly subjected to force and play a certain role in energy absorption, shock absorption and impact resistance, effectively protecting the battery cell 11 and preventing stress concentration problems.

[0067] In one embodiment, reference is made to... Figures 2 to 4As shown, the main battery cell 111 includes a first battery cell body 1111 and a first top sealing edge 1113. The first battery cell body 1111 is provided with a first top sealing edge 1113 on one side of the first direction A. The curing adhesive 13 is bonded to the first battery cell body 1111 and the first top sealing edge 1113.

[0068] In this embodiment, the first cell body 1111 may have a first top sealing edge 1113 protruding from one side in the first direction A, and the cured adhesive 13 is bonded to the first cell body 1111 and the first top sealing edge 1113. The cured adhesive 13 effectively increases the area bonded to the main cell portion 111, improves the bonding strength, and prevents the cured adhesive 13 from falling off. For the first top sealing edge 1113, the cured adhesive 13 can structurally reinforce the first top sealing edge 1113, reducing the problem of bending or twisting of the first top sealing edge 1113, and effectively supporting the first top sealing edge 1113.

[0069] In another embodiment (not shown), the protruding cell portion 112 includes a second cell body 1121 and a protruding top seal 1126. The protruding top seal 1126 is disposed on at least a portion of the outer peripheral edge of the second cell body 1121, and the cured adhesive 13 is bonded to the second cell body 1121 and the protruding top seal 1126.

[0070] In this embodiment, the protruding top sealing edge 1126 is protrudingly disposed on at least a portion of the outer peripheral edge of the second cell body 1121. For example, the protruding top sealing edge 1126 may include the aforementioned connecting top sealing edge 1124 and second top sealing edge 1125. The cured adhesive 13 can be bonded to the second cell body 1121, the connecting top sealing edge 1124, and the second top sealing edge 1125. On the one hand, it strengthens the structure of the protruding top sealing edge 1126, reduces the problem of bending and twisting of the protruding top sealing edge 1126, and effectively supports the protruding top sealing edge 1126. On the other hand, it can increase the area of ​​the cured adhesive 13 bonded to the protruding cell portion 112, improve the bonding strength, and prevent the cured adhesive 13 from falling off.

[0071] Additionally, refer to Figures 1 to 4 As shown, the battery cell 11 may further include a first side sealing edge 113 and a second side sealing edge 114, the first side sealing edge 113 and the second side sealing edge 114 being respectively disposed on both sides of the main battery cell portion 111 in the second direction B, the first direction A and the second direction B being intersected; wherein, the first side sealing edge 113 is connected to the first top sealing edge 1113, and the cured adhesive 13 is also bonded to the first side sealing edge 113; and / or, the second side sealing edge 114 is connected to the protruding top sealing edge 1126, and the cured adhesive 13 is also bonded to the second side sealing edge 114.

[0072] That is, in this embodiment, by bonding the cured adhesive 13 to the first side sealing edge 113 and / or the second side sealing edge 114, the structural reinforcement of the first side sealing edge 113 and / or the second side sealing edge 114 is improved, the bending deformation of the first side sealing edge 113 and / or the second side sealing edge 114 is reduced, and the effective support and reinforcement effect is achieved. In addition, the bonding area of ​​the cured adhesive 13 can be further increased, further improving the bonding stability.

[0073] The cured colloid 13 mentioned above can be a hot melt adhesive or a UV adhesive, but this disclosure does not limit the specific type of the cured colloid 13.

[0074] Reference Figures 5 to 11 As shown, this disclosure also provides an electrical device that includes the battery structure 1 described above.

[0075] Optionally, refer to Figures 5 to 11 As shown, the above-mentioned electrical equipment also includes a main structure 2, which can form a receiving groove 20. The battery structure 1 is disposed in the receiving groove 20, and at least a portion of the outer periphery of the battery cell 11 is opposite to the inner sidewall of the receiving groove 20 and spaced apart by a gap 30. The cured colloid 13 fills at least a portion of the gap 30.

[0076] In this embodiment, the battery structure 1 is installed by forming a receiving groove 20 on the main structure 2 of the electrical device and placing the battery structure 1 within the receiving groove 20. For example, the battery structure 1 can be bonded to the inner bottom wall of the receiving groove 20 using an adhesive layer, but this disclosure does not limit the specific installation method. In addition, by filling at least a portion of the gaps 30 with the cured adhesive 13, when the battery cell 11 is subjected to force and the force is transmitted to the cured adhesive 13, the cured adhesive 13 can be evenly stressed and can abut against the inner sidewall of the receiving groove 20, playing a certain role in energy absorption, shock absorption, and impact resistance, effectively protecting the battery cell 11 and preventing stress concentration problems.

[0077] Additionally, refer to Figure 6 , Figure 8 as well as Figure 10 As shown, the receiving groove 20 includes a main groove 202 and a protruding groove 203 that are interconnected. The main battery cell 111 is disposed in the main groove 202, and the protruding battery cell 112 and the electrode tab 12 are disposed in the protruding groove 203. That is, the shape of the receiving groove 20 can be adapted to the shape of the battery cell 11 for installation, avoiding waste of installation space and improving space utilization.

[0078] For example, the battery structure 1 also includes a battery protection plate (not shown), which is disposed in the protrusion groove 203 and electrically connected to the tab 12. By disposing of the battery protection plate in the protrusion groove, the space of the protrusion groove is fully utilized, thereby improving the space utilization rate.

[0079] In addition, the main structure 2 described above can be constructed as the middle frame structure of an electrical device, or the main structure 2 can also be constructed as the equipment housing of an electrical device, and this disclosure does not limit it in this way.

[0080] Optionally, refer to Figure 6 , Figure 8 as well as Figure 10 As shown, the inner wall of the receiving groove 20 is provided with a mating part 201, which can abut and adhere to the cured adhesive 13, so that the force on the cured adhesive 13 is evenly transmitted to the mating part 201, playing a role in energy absorption, shock absorption and impact resistance, effectively protecting the battery cell 11 and preventing stress concentration problems in the battery cell 11. The mating part 201 can be constructed in any suitable shape and structure, and this disclosure does not limit it.

[0081] Furthermore, regarding the cured adhesive 13 and the mating part 201, the cured adhesive 13 may not be bonded to the mating part 201. The cured adhesive 13 can be bonded to the battery cell 11 and cured before being assembled with the mating part 201. However, this disclosure does not limit this. For example, in other assembly processes, the cured adhesive 13 may also be bonded to the mating part 201. This disclosure does not limit this.

[0082] In one embodiment, reference is made to... Figure 5 and Figure 6 As shown, the mating part 201 includes a wall plane 2011, which is opposite to a portion of the outer peripheral edge of the battery cell 11 and is spaced apart by a gap 30. The cured adhesive 13 fills the gap 30 and forms an adhesive plane 131 that can adhere to the wall plane 2011.

[0083] In this embodiment, the stability of the cured adhesive 13 against the mating part 201 is ensured by the planar bonding of the adhesive plane 131 and the wall plane 2011. In addition, the planar bonding method can also reduce the problem of stress concentration.

[0084] In another embodiment, reference is made to... Figure 7 and Figure 8 As shown, the mating part 201 includes a wall arc surface 2012, which is opposite to a portion of the outer peripheral edge of the battery cell 11 and is spaced apart by a gap 30. The cured adhesive 13 fills the gap 30 and forms an adhesive arc surface 132 that can adhere to the wall arc surface 2012.

[0085] In this embodiment, the curved surface of the adhesive 132 is bonded to the curved surface of the wall 2012 to ensure the stability of the cured adhesive 13 against the mating part 201. In addition, the curved surface bonding method can also reduce the problem of stress concentration.

[0086] In another possible embodiment, refer to Figure 9 and Figure 10 As shown, the mating part 201 includes a mating wall 2013 and a slot 2014. The slot 2014 is recessed in the mating wall 2013. The mating wall 2013 is opposite to a portion of the outer peripheral edge of the battery cell 11 and is separated by a gap 30. The slot 2014 is connected to the gap 30. The cured adhesive 13 fills the slot 2014 and the gap 30.

[0087] In this embodiment, firstly, the slot 2014 communicates with the gap 30. When the cured adhesive 13 is disposed in the slot 2014 and the gap 30, the cured adhesive 13 in the gap 30 and the cured adhesive 13 in the slot 2014 form an integral structure. That is, part of the cured adhesive 13 is engaged in the slot 2014, achieving engagement with the main structure 2 and preventing the cured adhesive 13 from falling off the main structure 2. Furthermore, by engaging the mating wall 2013 with the cured adhesive 13 disposed in the gap 30, the stability of the cured adhesive 13 abutting against the mating part 201 can be ensured, and stress concentration problems can be reduced. The mating wall 2013 can be constructed as a plane or an arc surface; this disclosure does not limit this.

[0088] Optionally, refer to Figure 10 and Figure 11 As shown, the slot 2014 is constructed as a T-shaped slot, which includes a cavity 2015 and a neck 2016. The neck 2016 connects the cavity 2015 and the gap 30. The cavity 2015 and / or the neck 2016 form a guide slope 2017 to guide the cured colloid 13 into the T-shaped slot.

[0089] In this embodiment, the T-groove design effectively prevents the cured adhesive 13 disposed within the T-groove from detaching, thus improving the stability of the snap-fit. However, this disclosure does not limit the specific shape of the snap-fit ​​groove 2014. Furthermore, the guide slope 2017 formed by the groove cavity 2015 and / or the groove neck 2016 facilitates the entry of the cured adhesive 13 into the T-groove, effectively guiding it and facilitating the inflow (liquid) or insertion (solid) of the cured adhesive 13.

[0090] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of this disclosure. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0091] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A battery structure, characterized in that, The battery structure includes a cell and tabs; the cell includes a main cell portion and a protruding cell portion. The electrode tab is electrically connected to the battery cell and is disposed on the main battery cell portion and / or the protruding battery cell portion; The protruding battery cell portion is disposed on one side of the main battery cell portion in the first direction; The projection of the protruding battery cell portion in the first direction is the first projection, and the projection of the main battery cell portion in the first direction is the second projection. The first projection and the second projection portion overlap.

2. The battery structure according to claim 1, characterized in that, The main battery cell portion includes a first battery cell body, the first battery cell body including a first edge segment on one side of the first direction, the first edge segment extending along the second direction; The protruding cell portion includes a second cell body, the second cell body includes a connecting edge segment and a second edge segment, the connecting edge segment connects the first edge segment and the second edge segment; the connecting edge segment extends along the first direction, and the second edge segment extends along the second direction; The first direction and the second direction are intersecting.

3. The battery structure according to claim 2, characterized in that, The main battery cell portion further includes a first top sealing edge, and the protruding battery cell portion further includes a connecting top sealing edge and a second top sealing edge; The first top sealing edge extends in the first direction and is connected to the first edge segment; the connecting top sealing edge extends in the second direction and is connected to the connecting edge segment; the second top sealing edge extends in the first direction and is connected to the second edge segment. The connecting top sealing edge connects the first top sealing edge and the second top sealing edge.

4. The battery structure according to claim 3, characterized in that, The electrode tab protrudes in the first direction and is connected to the first top sealing edge and / or the second top sealing edge; and / or, the electrode tab protrudes in the second direction and is connected to the connecting top sealing edge.

5. The battery structure according to claim 1, characterized in that, The battery structure further includes a curing colloid, which is bonded to at least a portion of the outer peripheral edge of the main cell portion; and / or, the curing colloid is bonded to at least a portion of the outer peripheral edge of the protruding cell portion.

6. The battery structure according to claim 5, characterized in that, The main battery cell includes a first battery cell body and a first top seal. The first battery cell body has the first top seal on one side in the first direction. The cured adhesive is bonded to the first battery cell body and the first top seal. And / or, the protruding cell portion includes a second cell body and a protruding top seal, the protruding top seal being disposed on at least a portion of the outer peripheral edge of the second cell body, and the cured adhesive being bonded to the second cell body and the protruding top seal.

7. The battery structure according to claim 6, characterized in that, The battery cell also includes a first side sealing edge and a second side sealing edge, the first side sealing edge and the second side sealing edge are respectively disposed on both sides of the main body battery cell in a second direction, the first direction and the second direction intersect each other; Wherein, the first side sealing edge is connected to the first top sealing edge, and the cured adhesive is also bonded to the first side sealing edge; and / or, the second side sealing edge is connected to the protruding top sealing edge, and the cured adhesive is also bonded to the second side sealing edge.

8. An electrical appliance, characterized in that, The electrical equipment includes the battery structure according to any one of claims 1-7.

9. The electrical equipment according to claim 8, characterized in that, The electrical equipment also includes a main structure, the main structure having a receiving groove, the battery structure being disposed in the receiving groove, and at least a portion of the outer periphery of the battery cell being opposite to and spaced apart from the inner sidewall of the receiving groove, with the cured colloid filling at least a portion of the gap.

10. The electrical equipment according to claim 9, characterized in that, The inner wall of the receiving groove is provided with a mating part, which can abut and adhere to the cured colloid.

11. The electrical equipment according to claim 10, characterized in that, The mating part includes a wall plane, which is opposite to a portion of the outer peripheral edge of the battery cell and spaced apart by the gap. The cured adhesive fills the gap and forms an adhesive surface that can adhere to the wall plane.

12. The electrical equipment according to claim 10, characterized in that, The mating part includes a wall arc surface, which is opposite to a portion of the outer peripheral edge of the battery cell and spaced apart by the gap. The cured adhesive fills the gap and forms an adhesive arc surface that can fit with the wall arc surface.

13. The electrical equipment according to claim 10, characterized in that, The mating part includes a mating wall and a slot. The slot is recessed in the mating wall. The mating wall is opposite to a portion of the outer peripheral edge of the battery cell and is spaced apart by the gap. The slot communicates with the gap. The cured adhesive fills the slot and the gap.

14. The electrical equipment according to claim 13, characterized in that, The slot is constructed as a T-shaped slot, which includes a cavity and a neck, and the neck connects the cavity and the gap. The groove cavity and / or the groove neck are formed with a guide slope to guide the cured colloid into the T-groove.

15. The electrical equipment according to claim 9, characterized in that, The receiving groove includes a main body groove and a protruding groove that are interconnected. The main body battery cell is disposed in the main body groove, and the protruding battery cell and the electrode are disposed in the protruding groove.

16. The electrical equipment according to claim 15, characterized in that, The battery structure also includes a battery protection plate, which is disposed in the protruding groove and electrically connected to the electrode tab.

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