Battery assembly and electrical apparatus

Abstract

The present application relates to the technical field of batteries, and specifically relates to a battery assembly and an electrical apparatus. The battery assembly comprises: a battery, the battery comprising a top surface, a bottom surface, and a side surface; and a separation structure, wrapped around an outer side of the battery, the separation structure comprising a first conductive layer and an insulating separation layer. The first conductive layer covers a bottom surface of at least a part of the battery and a side surface of at least a part of the battery. The insulating separation layer comprises a separation main body portion and a lifting portion connected to the separation main body portion. A tear guide structure is provided between the separation main body portion and the lifting portion, the separation main body portion covers the first conductive layer and is connected to the first conductive layer, and the lifting portion is attached to the top surface of the battery. The lifting portion is configured to separate from an upper surface of the battery and expose the first conductive layer on a side surface of the battery to the battery when the lifting portion is subjected to a lifting force. At least a part of the insulating separation layer is composed of a conductive stripping adhesive. By applying the technical solution of the present application, the problem in the related technology that it is difficult for a battery to be taken out from a battery compartment can be effectively solved.

Description

Battery assembly and electric device TECHNICAL FIELD

[0001] The present application relates to the field of batteries, and in particular to a battery assembly and an electric device. BACKGROUND

[0002] A battery is a device that converts external energy into electrical energy and stores it inside, and is widely used in portable electronic devices such as mobile phones, tablets, and notebook computers.

[0003] In related technologies, a battery can be fixed in a mounting groove of a battery compartment by double-sided tape to prevent the battery from shaking in the mounting groove.

[0004] Although this fixing method is simple, it can be difficult to remove the battery. Because the adhesion of the double-sided tape is strong, a large force needs to be applied to remove the battery, reducing the efficiency of replacing the battery. In addition, removing the battery can cause the packaging film of the battery to be damaged, affecting the reuse of the battery. SUMMARY

[0005] The present application provides a battery assembly and an electric device to solve the problem that the electric device in related technologies is difficult to remove the battery from the battery compartment when replacing the battery.

[0006] In one aspect, the present application provides a battery assembly, comprising:

[0007] a battery comprising a top surface, a bottom surface, and a plurality of side surfaces between the top surface and the bottom surface;

[0008] a separation structure wrapped on the outside of the battery, the separation structure comprising a first conductive layer and an insulating separation layer;

[0009] wherein the first conductive layer covers at least part of the bottom surface of the battery and at least part of the side surface of the battery;

[0010] the insulating separation layer comprises a separation main body portion and a lifting portion connected to the separation main body portion, a tear guide structure is provided between the separation main body portion and the lifting portion, the separation main body portion covers and is connected to the first conductive layer, and the lifting portion is bonded to the top surface of the battery;

[0011] the lifting portion is configured to separate the lifting portion from the upper surface of the battery and expose the first conductive layer of the side surface of the battery when the lifting portion is subjected to a lifting force;

[0012] At least part of the insulating separation layer is composed of a conductive release adhesive.

[0013] In some embodiments, a tear guide structure is provided between the separation body portion and the pull portion, the pull portion is configured to separate from the separation body portion along the tear guide structure when the pull portion is subjected to a pulling force, and expose the first conductive layer on the side of the battery to the top surface of the battery.

[0014] In some embodiments, the pull portion includes a first edge and a second edge oppositely arranged in a first direction, and the tear guide structure includes a first tear guide portion and a second tear guide portion; a first end of the first tear guide portion is located at the first edge, and a second end of the first tear guide portion extends to the side of the battery; a first end of the second tear guide portion is located at the second edge, and a second end of the second tear guide portion extends to the side of the battery.

[0015] In some embodiments, the second end of the second tear guide portion extends towards the second end of the first tear guide portion and has a gap with the second end of the first tear guide portion; and the first direction is the width direction of the battery.

[0016] In some embodiments, the tear guide structure includes a tear line, and the structural strength of the insulating separation layer at the tear line is less than the structural strength of the insulating separation layer outside the tear line.

[0017] In some embodiments, the first conductive layer includes a first main conductive portion and a first extension conductive portion, the first main conductive portion covers at least part of the bottom surface of the battery, and the first extension conductive portion covers the side of the battery; the first extension conductive portion includes a first extension strip and a first connecting portion connecting the first extension strip and the first main conductive portion, the length of the first connecting portion in the first direction is less than the length of the first extension strip in the first direction, and the pull portion is arranged at an end of the first extension strip away from the first connecting portion.

[0018] In some embodiments, the insulating separation layer further includes an insulating protective layer, the insulating protective layer is connected with the conductive release adhesive and forms the insulating separation layer together, the connection between the conductive release adhesive and the insulating protective layer is located on the bottom surface of the battery, the insulating protective layer includes an insulating protective main body portion and a handle arranged on the insulating protective main body portion, the insulating protective main body portion and the handle are connected through a tear guide structure, the handle forms the pull portion of the insulating separation layer, and the insulating protective main body and the conductive release adhesive form the separation body portion.

[0019] In some embodiments, the conductive release adhesive covers the bottom surface of the first conductive layer and is butt jointed or overlapped with the insulating protective layer on the bottom surface.

[0020] In some embodiments, the battery includes a plurality of edges, the first main conductive portion has a plurality of edges arranged corresponding to the edges of the battery, the area of the first main conductive portion is less than the bottom area of the battery, and there is a gap between each edge of the first main conductive portion and the corresponding edge of the battery.

[0021] In some embodiments, the partition structure further comprises a second conductive layer, the second conductive layer covering the insulating partition layer on the bottom surface of the battery and the insulating partition layer on the side surface of the battery.

[0022] In some embodiments, the second conductive layer comprises a second main conductive part and a second extension conductive part, the second main conductive part covering the insulating partition layer on the bottom surface of the battery, and the second extension conductive part covering the insulating partition layer on the side surface of the battery.

[0023] The second extension conductive part comprises a second extension strip and a second connecting part connecting the second extension strip and the second main conductive part, the length of the second connecting part in the first direction is less than the length of the second extension strip in the first direction, the pulling part is arranged in the first direction offset from the second connecting part, and the pulling part is bonded to the second extension strip.

[0024] The first direction is the width direction of the battery.

[0025] In another aspect, the application provides a power device, comprising a battery compartment and a battery assembly arranged in the battery compartment, the battery assembly being the above-mentioned battery assembly, wherein the battery compartment is made of a conductive material, and the first conductive layer in the battery assembly is arranged between the insulating partition layer and the battery compartment.

[0026] In another aspect, the application provides a power device, comprising a battery compartment and a battery assembly arranged in the battery compartment, the battery assembly being the above-mentioned battery assembly, wherein the battery compartment is made of an insulating material, and the second conductive layer in the battery assembly is arranged with a third bonding layer between the battery compartment.

[0027] The battery assembly provided in the application comprises a battery and a separation structure. The separation structure comprises a first conductive layer and an insulating separation layer. The first conductive layer covers at least part of the bottom surface and at least part of the side surface of the battery. The insulating separation layer comprises a separation main body part and a pulling part connected with the separation main body part. The separation main body part can cover the first conductive layer, that is, the separation main body part can cover the first conductive layer on the bottom surface of the battery and the first conductive layer on the side surface of the battery. The pulling part can be bonded to the upper surface of the battery. Since the pulling part and the separation main body part are connected through a tearing guide structure, when the pulling part is subjected to a pulling force, the pulling part is first separated from the upper surface of the battery. With the continuous pulling force, the pulling part can be peeled off from the side surface of the battery, so that the first conductive layer on the side surface of the battery is separated from the battery. At this time, the connecting end of the external power supply can be inserted between the first conductive layer and the battery, so as to be in contact with the first conductive layer, realizing the conduction of the external power supply and the first conductive layer. At the same time, the other end of the external power supply can be connected to the battery compartment which can conduct electricity. Since the insulating separation layer is located between the first conductive layer and the battery compartment, and at least part of the insulating separation layer is composed of a conductive release adhesive, the two sides of the conductive release adhesive can form an electromotive force, so that the conductive release adhesive loses adhesion. The operator can take out the battery together with the first conductive layer from the battery compartment. Even if the first conductive layer is damaged, it will not affect the structure of the battery, ensuring the integrity of the battery.

[0028] At the same time, since the first conductive layer only covers the bottom surface and the side surface of the battery, and does not cover the top surface of the battery, the overall thickness of the battery assembly is reduced, ensuring the miniaturization of the design of the battery assembly. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings listed herein are incorporated into the specification and form part of the specification, show embodiments consistent with the application, and together with the specification serve to explain the principles of the application.

[0030] FIG. 1 is a structural schematic diagram of a battery assembly according to an embodiment of the application.

[0031] FIG. 2 is an enlarged structural schematic diagram of A of the battery assembly of FIG. 1.

[0032] FIG. 3 is a perspective structural schematic diagram of the battery assembly of FIG. 1.

[0033] FIG. 4 is an assembly structural schematic diagram of the battery and the first conductive layer of the battery assembly of FIG. 1.

[0034] FIG. 5 is a perspective structural schematic diagram of the insulating separation layer of the battery assembly of FIG. 1.

[0035] FIG. 6 is an expanded structural schematic diagram of the insulating separation layer of FIG. 5.

[0036] FIG. 7 is an expanded structural schematic diagram of the battery assembly of FIG. 1.

[0037] Fig. 8 is a perspective structural schematic diagram of the battery assembly of Fig. 1, wherein Fig. 8 shows a structural schematic diagram of the pull-tab being peeled off from the top surface of the battery.

[0038] Fig. 9 is a perspective structural schematic diagram of the battery assembly of Fig. 1, wherein Fig. 9 shows a structural schematic diagram of the pull-tab being torn along the tear guide structure.

[0039] Fig. 10 is a structural schematic diagram of the battery assembly of Fig. 9 from another perspective.

[0040] Fig. 11 is a structural schematic diagram of the battery assembly of Fig. 1 when connected to an external power source.

[0041] Fig. 12 is a structural schematic diagram of a battery assembly provided by another embodiment of the present application.

[0042] Fig. 13 is a perspective structural schematic diagram of the battery assembly of Fig. 12.

[0043] Fig. 14 is a perspective structural schematic diagram of the battery assembly of Fig. 12, wherein Fig. 14 shows a structural schematic diagram of the pull-tab being torn along the tear guide structure.

[0044] Fig. 15 is a structural schematic diagram of the battery assembly of Fig. 12 when connected to an external power source.

[0045] Reference signs: 100, battery; 110, top surface; 120, bottom surface; 130, side surface; 200, separation structure; 300, first conductive layer; 301, gap; 310, first main conductive part; 320, first extended conductive part; 321, first extended strip; 322, first connecting part; 400, insulating separation layer; 401, separation main part; 402, pull-tab; 410, conductive peeling adhesive; 420, insulating protective layer; 421, insulating protective main part; 422, handle; 423, tear guide structure; 4231, first tear guide part; 4232, second tear guide part; 510, first adhesive layer; 520, second adhesive layer; 530, third adhesive layer; 600, second conductive layer; 610, second main conductive part; 620, second extended conductive part; 621, second extended strip; 622, second connecting part; 700, battery compartment; 800, external power source. DETAILED DESCRIPTION

[0046] In order to make the objectives, technical solutions and advantages 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 some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0047] The fixing manner of the battery in the battery compartment is directly related to the convenience of battery replacement, the difficulty of maintenance, the space occupation, and the safety of the battery. In the related art, there are mainly two fixing manners of the battery: fixed through a detachable connection structure and fixed through an inseparable adhesive manner.

[0048] The detachable structure between the battery and the battery compartment facilitates the replacement and maintenance of the battery. However, this structure usually occupies more space because additional connecting components such as clamps or buckles are needed. This may affect the miniaturized design of the device. In addition, frequent disassembly and installation may cause wear of the connecting components, reducing their durability. The inseparable connection between the battery and the battery compartment uses double-sided tape to directly bond the battery in the battery compartment. This setting can save space, increase the capacity of the battery, and ensure the miniaturized design of the electric device. However, due to the strong adhesion of the double-sided tape, it is difficult for the user or the maintenance personnel to disassemble the battery, and a large force needs to be applied to remove the battery. Therefore, the battery is prone to damage, which is not conducive to the reuse of the battery and affects the efficiency of battery replacement.

[0049] In order to improve the smoothness when the battery is taken out, a scheme of using conductive release tape to paste the battery is also designed in the related art. The conductive release tape is a special material that has a certain adhesion when not powered on, and can tightly bond the battery and the battery compartment. When the battery needs to be separated, an external power source can be applied between the two surfaces of the conductive release tape to form a potential difference. This potential difference will gradually reduce the adhesion of the conductive release tape, and eventually make it lose adhesion, so as to allow the operator to easily take out the battery from the battery compartment, reducing the risk of battery damage.

[0050] Therefore, in the scheme of bonding the battery by the conductive release tape, a conductive layer needs to be provided on both sides of the conductive release tape, and the conductive layer is connected with the external power source to form a potential difference. Therefore, the conductive layer and the conductive release tape form a relatively complex laminated structure, causing an increase in the overall thickness of the battery assembly. In addition, during battery replacement and maintenance, the operator needs to peel off the conductive layer from the multi-layer structure to connect with the external power source, which also affects the efficiency of battery replacement and maintenance.

[0051] Therefore, the present application designs a battery assembly, which optimizes the laminated structure outside the battery, so as to ensure that the battery assembly has a smaller thickness, and facilitates the connection of the external power source with the conductive layer.

[0052] The battery assembly provided by the embodiments of the present application will be described below with reference to the accompanying drawings. It should be noted that the battery provided by the embodiments of the present application can be a secondary battery, that is, the battery in the embodiments of the present application can be charged and discharged and recycled. The specific type of the battery can include, but is not limited to, a lithium battery, etc. The scenarios in which the battery can be used include, but are not limited to, electronic products such as mobile phones and tablet computers, and the embodiments of the present application do not make specific limitations in this regard.

[0053] As shown in FIGS. 1-7 and 11, the battery assembly of the embodiments of the present application includes a battery 100 and a separation structure 200.

[0054] The battery 100 includes a top surface 110, a bottom surface 120, and a plurality of side surfaces 130 between the top surface 110 and the bottom surface 120.

[0055] The separation structure 200 is wrapped on the outside of the battery 100, and the separation structure 200 includes a first conductive layer 300 and an insulating separation layer 400. Specifically, the first conductive layer 300 covers at least part of the bottom surface 120 of the battery 100 and at least part of the side surface 130 of the battery 100. The insulating separation layer 400 includes a separation main body part 401 and a pulling part 402 connected to the separation main body part 401, the separation main body part 401 covers and is connected to the first conductive layer 300, and the pulling part 402 is bonded to the top surface 110 of the battery 100. The pulling part 402 is configured to separate the pulling part 402 from the upper surface of the battery 100 and separate the first conductive layer 300 of the side surface 130 of the battery 100 from the battery 100 when the pulling part 402 is subjected to a pulling force, and at least part of the insulating separation layer 400 is composed of a conductive peeling adhesive 410.

[0056] By applying the technical solutions of the embodiments, the separation structure 200 is wrapped on the outside of the battery 100, which can not only protect the battery 100, but also serve as a connection between the battery and the battery compartment. The separation structure 200 includes a first conductive layer 300 and an insulating separation layer 400, and in the case that the battery compartment 700 of the power consumption device is made of conductive material, the insulating separation layer 400 can achieve the insulation between the first conductive layer 300 and the battery compartment 700 to ensure that a potential difference is formed on both sides of the conductive peeling adhesive 410 after the external power supply 800 is connected.

[0057] The first conductive layer 300 covers at least part of the bottom surface 120 and at least part of the side surface 130 of the battery 100. The insulating separation layer 400 includes a separation body part 401 and a pulling part 402 connected to the separation body part 401. The separation body part 401 can cover the first conductive layer 300, i.e., the first conductive layer 300 on the bottom surface 120 of the battery 100 and the first conductive layer 300 on the side surface 130 of the battery 100. The pulling part 402 can be attached to the upper surface of the battery 100. Since the pulling part 402 is connected to the separation body part 401 (for example, the pulling part 402 is connected to the separation body part 401 through a tear guide structure), when the pulling part 402 is pulled, the pulling part 402 is first separated from the upper surface of the battery 100. With the continuous pulling, the pulling part 402 can be peeled off from the side surface of the battery 100, so that the first conductive layer 300 on the side surface 130 of the battery 100 is separated from the battery 100. At this time, the connecting end of the external power supply 800 can be inserted between the first conductive layer 300 and the battery 100, so as to be in contact with the first conductive layer 300, realizing the conduction between the external power supply 800 and the first conductive layer 300. At the same time, the other end of the external power supply 800 can be connected to the battery compartment 700 which can conduct electricity. Since the insulating separation layer 400 is located between the first conductive layer 300 and the battery compartment 700, and at least part of the insulating separation layer 400 is composed of the conductive peeling adhesive 410, the two sides of the conductive peeling adhesive 410 can form an electromotive force, so that the conductive peeling adhesive 410 loses adhesion, and the operator can take out the battery 100 together with the first conductive layer 300 from the battery compartment 700. Even if the first conductive layer 300 is damaged, it will not affect the structure of the battery 100, ensuring the integrity of the battery 100.

[0058] At the same time, the first conductive layer 300 only covers the bottom surface and the side surface of the battery, and does not cover the top surface of the battery. Therefore, the overall thickness of the battery assembly is reduced, ensuring the miniaturization design of the battery assembly.

[0059] It should be noted that the conductive peeling adhesive 410 includes a first electrically peelable adhesive, a non-woven fabric and a second electrically peelable adhesive arranged in layers. The conductive peeling adhesive can be selected to lose adhesion on the low potential side after being electrified, or to lose adhesion on the high potential side after being electrified, or to lose adhesion as a whole after being electrified.

[0060] To further improve the convenience of connecting the external power supply 800 with the first conductive layer 300, a tearing guide structure 423 can be arranged between the separation main body part 401 and the pulling part 402, so that the pulling part 402 can be separated from the separation main body part 401 along the tearing guide structure 423 when subjected to a pulling force, thereby driving the first conductive layer 300 bonded on the pulling part 402 to expose the gap between the battery 100 and the battery compartment 700, thereby facilitating the contact between the connecting end of the external power supply 800 and the first conductive layer 300.

[0061] Specifically, as shown in FIGS. 3 and 6-10, in some embodiments, a tearing guide structure 423 is arranged between the separation main body part 401 and the pulling part 402, and the pulling part 402 is configured to separate from the separation main body part 401 along the tearing guide structure 423 when the pulling part 402 is subjected to a pulling force, and expose the first conductive layer 300 located on the side surface 130 of the battery 100 to the top surface 110 of the battery 100. In this way, the connecting end of the external power supply 800 can be quickly connected with the first conductive layer 300.

[0062] The specific arrangement of the tearing guide structure will be described below in conjunction with the accompanying drawings.

[0063] As shown in FIGS. 3 and 6-10, in some embodiments, the pulling part 402 includes a first edge and a second edge arranged opposite to each other in a first direction (the width direction of the battery 100, i.e., the x direction of FIG. 6), and the tearing guide structure 423 includes a first tearing guide part 4231 and a second tearing guide part 4232; the first end of the first tearing guide part 4231 is located at the first edge, and the second end of the first tearing guide part 4231 extends to the side surface 130 of the battery 100; the first end of the second tearing guide part 4232 is located at the second edge, and the second end of the second tearing guide part 4232 extends to the side surface of the battery 100.

[0064] When a pulling force is applied to the pulling part 402, the pulling part 402 first separates from the separation main body part 401 along the first tearing guide part 4231 and the second tearing guide part 4232, and the first tearing guide part 4231 and the second tearing guide part 4232 crack onto the side surface 130 of the battery 100. At this time, the pulling part 402 can separate the first conductive layer 300 from the side surface 130 of the battery 100, thereby facilitating the connection between the connecting end of the external power supply 800 and the first conductive layer 300.

[0065] Further, as shown in FIG. 6, the second end of the second tearing guide part 4232 extends towards the second end of the first tearing guide part 4231 and has a gap therebetween.

[0066] When the first tear guide 4231 and the second tear guide 4232 are cracked to the side surface 130 of the battery 100, the direction of the pulling force is changed, the second edge of the pulling part 402 is pulled up, the second end of the second tear guide 4232 is cracked toward the second end of the first tear guide 4231, and the torsion of the pulling part 402 is realized, at this time, the pulling part 402 can make the first conductive layer 300 extend from the top surface 110 of the battery 100, and the connecting end of the external power supply 800 is connected with the first conductive layer 300.

[0067] Specifically, the second tear guide 4232 includes a first tear segment parallel to the first tear guide 4231 and a second tear segment arranged at an angle with the first tear segment, the second tear segment extends toward the second end of the first tear guide 4231, so as to be cracked when the pulling part 402 is subjected to the pulling force, and the torsion of the pulling part 402 is realized.

[0068] It should be noted that in some embodiments, the tear guide structure 423 includes a tear line (not shown in the figure), and the structural strength of the insulating separation layer 400 at the tear line is less than the structural strength of the insulating separation layer 400 outside the tear line. In the above structure, the tear line can be a virtual tear line, which is simple in structure and easy to process. The tear line can regulate the path of the pulling part 402 separated from the separation main body part 401, thereby guiding the tearing of the pulling part 402.

[0069] The specific structure of the first conductive layer will be described below in combination with the drawings.

[0070] As shown in FIGS. 6, 7 and 10, in some embodiments, the first conductive layer 300 includes a first main body conductive part 310 and a first extension conductive part 320. The first main body conductive part 310 covers at least part of the bottom surface 120 of the battery 100 and is bonded to the bottom surface 120 of the battery by the first bonding layer 510. The first extension conductive part 320 is located on the side surface 130 of the battery 100 and does not extend to the top surface 110 of the battery, thereby avoiding increasing the overall thickness of the battery assembly, and ensuring the miniaturization of the battery assembly while facilitating the connection of the first conductive layer 300 with the external power supply.

[0071] It should be further noted that the first extension conductive part 320 includes a first extension strip 321 and a first connecting part 322 connecting the first extension strip 321 and the first main body conductive part 310, the length of the first connecting part 322 in the first direction is less than the length of the first extension strip 321 in the first direction, and the pulling part 402 is arranged at an end of the first extension strip 321 away from the first connecting part 322.

[0072] The top surface of the first main conductive part 310 can be connected with the bottom surface of the battery 100, and the bottom surface of the first main conductive part 310 can be connected with the battery compartment through the conductive stripping glue 410, so as to realize the effect of connecting the battery 100 in the battery compartment 700. The first extension conductive part 320 includes a first extension strip 321 and a first connecting part 322, and the first extension strip 321 is connected with the first main conductive part 310 through the first connecting part 322. Since the length of the first connecting part 322 in the first direction is less than the length of the first extension strip 321 in the first direction, the end of the first extension strip 321 away from the first connecting part 322 forms a free end. The free end of the first extension strip 321 can move with the pulling part 402, so as to realize the state that the first extension strip 321 is exposed to the top surface 110 of the battery, and then facilitate the connection between the external power supply 800 and the first conductive layer 300.

[0073] Specifically, when a pulling force is applied to the pulling part 402, the pulling part 402 is first separated from the separation main body part 401 along the first tearing guide part 4231 and the second tearing guide part 4232. When the first tearing guide part 4231 and the second tearing guide part 4232 crack to the side surface 130 of the battery 100, the direction of the pulling force is changed, the second edge of the pulling part 402 is pulled upward, the second end of the second tearing guide part 4232 is cracked toward the second end of the first tearing guide part 4231, so as to realize the torsion of the pulling part 402. At this time, the pulling part 402 can take the first extension strip 321 away from the side surface 130 of the battery, and extend outward to the top surface 110 of the battery, so as to expose the first extension strip 321 to the top surface 110 of the battery, and facilitate the connection between the connection end of the external power supply 800 and the first conductive layer 300.

[0074] It should be noted that the first conductive layer 300 can be a conductive metal sheet. The conductive metal sheet has a thin thickness, small space occupation, good ductility and easy bending. Therefore, it can be used to process the first conductive layer 300. Exemplarily, the first conductive layer 300 can be an aluminum foil.

[0075] The specific structure of the insulating separation layer will be described below with reference to the accompanying drawings.

[0076] As shown in FIG. 1, FIG. 5, FIG. 6 and FIG. 8-10, in some embodiments, the insulation separation layer 400 further comprises an insulation protection layer 420, which is connected with the conductive release adhesive 410 and jointly forms the insulation separation layer 400. The connection between the conductive release adhesive 410 and the insulation protection layer 420 is located on the bottom surface 120 of the battery 100. The insulation protection layer 420 comprises an insulation protection main body 421 and a handle 422 arranged on the insulation protection main body 421, and the insulation protection main body 421 and the handle 422 are connected through a tear guide structure 423. The handle 422 forms the pulling part 402 of the insulation separation layer 400, and the insulation protection main body 421 and the conductive release adhesive 410 form the separation main body 401.

[0077] In the above structure, the insulation protection layer 420 can play the roles of protecting the battery 100, insulating the first conductive layer 300 from the battery compartment 700, and reducing the use area of the conductive release adhesive 410. Specifically, since the purpose of the conductive release adhesive 410 is to bond the first conductive layer 300 and the battery compartment, the coating area of the conductive release adhesive 410 only needs to meet the bonding effect, and the excess part can be supplemented by the insulation protection layer 420 to reduce the electrolysis time of the conductive release adhesive 410 and reduce the cost of the battery assembly.

[0078] Specifically, the insulation protection layer 420 can be an insulation adhesive paper pasted on the battery 100. Therefore, arranging the pulling part 402 on the insulation protection layer 420 can take advantage of the adhesive property of the insulation adhesive paper, so that when the pulling part 402 is torn, the first extension strip 321 can be pulled, thereby enriching the functionality of the insulation protection layer 420.

[0079] It should be noted that the insulation protection main body 421 is pasted on the side surface 130 of the battery 100 and extends from the side surface 130 to the top surface 110 and the bottom surface 120, and the handle 422 is connected to the insulation protection main body 421 and bonded to the top surface 110 of the battery 100, forming the pulling part 402 of the insulation separation layer 400.

[0080] As shown in FIG. 1, FIG. 2, FIG. 5 and FIG. 6, in some embodiments, the conductive release adhesive 410 covers the bottom surface 120 of the first conductive layer 300 and is butted or overlapped with the insulation protection layer 420 located on the bottom surface 120. In this way, the insulation effect of the first conductive layer 300 from the bottom surface of the battery compartment 700 can be ensured.

[0081] It should be noted that the above-mentioned "butt joint" means that the edge of the insulation protection layer 420 is in contact with the edge of the conductive release adhesive 410 to prevent the first conductive layer 300 from directly contacting the bottom surface of the battery compartment 700 through the gap between the insulation protection layer 420 and the conductive release adhesive 410.

[0082] It is also to be noted that the "overlapping" above refers to the edge of the insulating protective layer 420 and the edge of the conductive release adhesive 410 having an overlapping portion in the thickness direction of the battery 100 to prevent the first conductive layer 300 from directly contacting the bottom surface of the battery compartment 700. Exemplarily, the width of the overlapping portion can be less than 2 mm.

[0083] Further, as shown in FIG. 2, in some embodiments, the battery 100 includes a plurality of edges, the first main conductive part 310 has a plurality of edges arranged corresponding to the edges of the battery 100, the area of the first main conductive part 310 is smaller than the area of the bottom surface 120 of the battery 100, and each first main conductive part 310 edge has a gap 301 with the corresponding edge of the battery 100.

[0084] In the above structure, due to the design of the gap 301, the edge of the first conductive layer 300 cannot contact the compartment wall of the battery compartment, thereby ensuring the insulation effect between the first conductive layer 300 and the battery compartment 700.

[0085] It is to be noted that such arrangement can cause the edge of the conductive release adhesive 410 to exceed the edge of the first conductive layer 300, so that the excess part of the conductive release adhesive 410 cannot be effectively electrolyzed, and its adhesion is still present. However, compared with the whole conductive release adhesive 410, the area of the non-electrolyzed part of the conductive release adhesive 410 is smaller, and a smaller pulling force can be used to remove the battery 100.

[0086] In some cases, the battery compartment 700 of the electric device is made of insulating material. In order to adapt to the battery compartment 700 made of insulating material, as shown in FIGS. 12-15, in some embodiments, the separation structure 200 further includes a second conductive layer 600, the second conductive layer 600 covers the insulating separation layer 400 located at the bottom surface 120 of the battery 100 and the insulating separation layer 400 located at the side surface 130 of the battery 100.

[0087] As shown in FIGS. 12-15, the second conductive layer 600 includes a second main conductive part 610 and a second extension conductive part 620, the second main conductive part 610 covers the insulating separation layer 400 located at the bottom surface 120 of the battery 100, and the second extension conductive part 620 covers the insulating separation layer 400 located at the side surface 130 of the battery 100; the second extension conductive part 620 includes a second extension strip 621 and a second connecting part 622 connecting the second extension strip 621 and the second main conductive part 610, the length of the second connecting part 622 in the first direction is smaller than the length of the second extension strip 621 in the first direction, the pulling part 402 is arranged in the first direction offset from the second connecting part 622, and the pulling part 402 and the second extension strip 621 are bonded by the second adhesive layer 520.

[0088] In the above structure, the insulating separation layer 400 is substantially located between the first conductive layer 300 and the second conductive layer 600, the first conductive layer 300 is capable of being bonded with the battery 100, the second conductive layer 600 is capable of being bonded with the battery compartment 700, and the first conductive layer 300 and the second conductive layer 600 have the insulating separation layer 400 including the conductive peeling adhesive 410 therebetween. Therefore, the positive and negative poles of the external power supply 800 can be connected to the first conductive layer 300 and the second conductive layer 600 respectively, so that a potential difference is formed on both sides of the conductive peeling adhesive 410, causing the conductive peeling adhesive 410 to lose adhesion with the first conductive layer 300 and the second conductive layer 600, and the battery 100 can be smoothly taken out of the battery compartment 700.

[0089] Further, the first conductive layer 300 and the second conductive layer 600 have similar structures, but since the second conductive layer 600 is located on the outer side of the insulating separation layer 400 and the first conductive layer 300 is located on the inner side of the insulating separation layer 400, the size of the second conductive layer 600 is greater than that of the first conductive layer 300.

[0090] The second conductive layer 600 includes a second main conductive part 610 and a second extension conductive part 620, the second main conductive part 610 covers the insulating separation layer 400 located on the bottom surface 120 of the battery 100, and the second extension conductive part 620 covers the insulating separation layer 400 located on the side surface 130 of the battery 100. That is to say, the inner side of the insulating separation layer 400 is bonded with the first extension conductive part 320, and the outer side of the insulating separation layer 400 is bonded with the second extension conductive part 620. Specifically, the pulling part 402 of the insulating separation layer 400 can be bonded with the first extension strip 321 and the second extension strip 621 at the same time, so that when the pulling part 402 is pulled out, the first extension strip 321 and the second extension strip 621 are also taken out of the gap between the battery 100 and the battery compartment 700, and then the two connection ends of the external power supply 800 can be connected to the first extension strip 321 and the second extension strip 621 respectively, so as to realize peeling of the conductive peeling adhesive 410.

[0091] As shown in FIG. 1, the application also provides a power consumption device, which includes a battery compartment 700 and a battery assembly arranged in the battery compartment 700, the battery assembly is the above-mentioned battery assembly, wherein the battery compartment 700 is made of conductive material, and the first conductive layer 300 in the battery assembly is arranged between the insulating separation layer 400 and the battery compartment 700.

[0092] In the above structure, when the battery compartment 700 of the electric device is made of conductive material, the battery assembly only includes one conductive layer, i.e., the battery assembly only includes the first conductive layer 300. The first conductive layer 300 and the battery compartment 700 capable of conducting electricity together constitute a conductive member connected to the positive and negative poles of the external power supply 800, thereby forming a potential difference on both sides of the conductive release adhesive 410, achieving the elimination of the adhesion of the conductive release adhesive 410, and further taking out the battery 100.

[0093] As shown in FIG. 12, the application also provides an electric device, which includes a battery compartment 700 and a battery assembly arranged in the battery compartment 700, the battery assembly being the above-mentioned battery assembly. The battery compartment 700 is made of insulating material, and the second conductive layer 600 in the battery assembly is provided with a third adhesive layer 530 between the second conductive layer 600 and the battery compartment 700.

[0094] In the above structure, when the battery compartment 700 of the electric device is made of insulating material, the battery assembly needs to include two conductive layers, i.e., the battery assembly includes the first conductive layer 300 and the second conductive layer 600, and the first conductive layer 300 and the second conductive layer 600 have an insulating separation layer including the conductive release adhesive 410 therebetween. Therefore, the positive and negative poles of the external power supply 800 can be connected to the first conductive layer 300 and the second conductive layer 600, respectively, thereby forming a potential difference on both sides of the conductive release adhesive 410, causing the first conductive layer 300 and the second conductive layer 600 to lose adhesion, and the battery 100 can be smoothly taken out from the battery compartment 700.

[0095] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0096] In the description of the application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0097] The terms "first", "second", "third", "fourth" and the like in the description and in the claims of the present application, if any, are used for distinguishing between similar elements and not necessarily for describing a sequential or chronological order. It is to be understood that the use of these terms herein is to be construed to cover a general order and not a strict order unless there is no provision for modifying this strict order and except where otherwise explicitly provided or unless it is clear from the context that these terms mean something different.

[0098] Further, the terms "comprise", "comprising", "include", "including", and the like, if any, used in the present specification are used to indicate the presence of stated elements or features but do not preclude the presence or addition of one or more other elements or features.

[0099] Finally, it should be noted that the above-mentioned embodiments are merely used to illustrate the technical solutions of the present application, rather than limit the technical solutions of the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified or equivalent replacements can be made to some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery assembly, characterized in that, include: The battery includes a top surface, a bottom surface, and a plurality of side surfaces located between the top surface and the bottom surface; A separation structure is wrapped around the outside of the battery, the separation structure including a first conductive layer and an insulating separation layer; Wherein, the first conductive layer covers at least a portion of the bottom surface of the battery and at least a portion of the side surface of the battery; The insulating separator includes a separator body and a pull-up portion connected to the separator body. The separator body covers the first conductive layer and is connected to the first conductive layer. The pull-up portion is adhered to the upper surface of the battery. The lifting portion is configured such that, when subjected to a lifting force, the lifting portion separates from the top surface of the battery and causes the first conductive layer on the side of the battery to separate from the battery. At least a portion of the insulating separator is composed of conductive release adhesive.

2. The battery assembly according to claim 1, characterized in that, A tear guide structure is provided between the separating main body and the lifting part. The lifting part is configured such that when the lifting part is subjected to a lifting force, the lifting part separates from the separating main body along the tear guide structure, and the first conductive layer located on the side of the battery is exposed to the top surface of the battery.

3. The battery assembly according to claim 2, characterized in that, The lifting portion includes a first edge and a second edge disposed opposite to each other in a first direction, and the tearing guide structure includes a first tearing guide portion and a second tearing guide portion; the first end of the first tearing guide portion is located at the first edge, and the second end of the first tearing guide portion extends to the side of the battery; the first end of the second tearing guide portion is located at the second edge, and the second end of the second tearing guide portion extends to the side of the battery.

4. The battery assembly according to claim 3, characterized in that, The second end of the second tear guide extends toward the second end of the first tear guide and is spaced apart from the second end of the first tear guide; Wherein, the first direction is the width direction of the battery.

5. The battery assembly according to claim 4, characterized in that, The tear guide structure includes a tear line, and the structural strength of the insulating separator at the tear line is less than the structural strength of the insulating separator outside the tear line.

6. The battery assembly according to claim 4, characterized in that, The first conductive layer includes a first main conductive portion and a first extended conductive portion, the first main conductive portion covering at least a portion of the bottom surface of the battery, and the first extended conductive portion located on the side of the battery.

7. The battery assembly according to claim 6, characterized in that, The first extended conductive portion includes a first extended strip and a first connecting portion connecting the first extended strip and the first main conductive portion. The length of the first connecting portion in the first direction is less than the length of the first extended strip in the first direction. The lifting portion is disposed at one end of the first extended strip away from the first connecting portion.

8. The battery assembly according to any one of claims 4 to 6, characterized in that, The insulating separator layer further includes an insulating protective layer, which is connected to the conductive release adhesive and together forms the insulating separator layer. The connection between the conductive release adhesive and the insulating protective layer is located on the bottom surface of the battery. The insulating protective layer includes an insulating protective main body and a handle disposed on the insulating protective main body. The insulating protective main body and the handle are connected by the tear guide structure. The handle forms a lifting portion of the insulating separator layer. The insulating protective main body and the conductive release adhesive form the separator main body.

9. The battery assembly according to claim 8, characterized in that, The conductive release adhesive covers the bottom surface of the first conductive layer and is mated or overlapped with the insulating protective layer located on the bottom surface.

10. The battery assembly according to any one of claims 6 to 9, characterized in that, The battery includes multiple edges, and the first main conductive part has multiple edges corresponding to the edges of the battery. The area of ​​the first main conductive part is smaller than the bottom area of ​​the battery, and there is a gap between each edge of the first main conductive part and the edge of the corresponding battery.

11. The battery assembly according to any one of claims 1 to 10, characterized in that, The first conductive layer is a metal sheet.

12. The battery assembly according to any one of claims 1 to 11, characterized in that, The separation structure further includes a second conductive layer, which covers the insulating separation layer located on the bottom surface of the battery and the insulating separation layer located on the side surface of the battery.

13. The battery assembly according to claim 12, characterized in that, The second conductive layer includes a second main conductive portion and a second extended conductive portion. The second main conductive portion covers the insulating separation layer located on the bottom surface of the battery, and the second extended conductive portion covers the insulating separation layer located on the side surface of the battery. The second extended conductive portion includes a second extended strip and a second connecting portion connecting the second extended strip and the second main conductive portion. The length of the second connecting portion in a first direction is less than the length of the second extended strip in the first direction. The lifting portion is offset from the second connecting portion in the first direction, and the lifting portion is bonded to the second extended strip. Wherein, the first direction is the width direction of the battery.

14. An electrical appliance, characterized in that, It includes a battery compartment and a battery assembly disposed within the battery compartment, wherein the battery assembly is the battery assembly according to any one of claims 1 to 11. The battery compartment is made of a conductive material, and the first conductive layer in the battery assembly is disposed between the insulating separator and the battery compartment.

15. An electrical appliance, characterized in that, It includes a battery compartment and a battery assembly disposed within the battery compartment, wherein the battery assembly is the battery assembly as described in claim 12 or 13. The battery compartment is made of insulating material, and a third adhesive layer is provided between the second conductive layer in the battery assembly and the battery compartment.

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