Conductive connection bar, end plate assembly, battery, and electric device

Abstract

The present application discloses a conductive connection bar (200), an end plate assembly, a battery (10), and an electric device (800). The conductive connection bar (200) comprises a first connection portion (210), a deformation portion (230), and a second connection portion (220); the first connection portion (210) and the second connection portion (220) are respectively connected to two sides of the deformation portion (230) along a first direction; the first connection portion (210) and the second connection portion (220) are respectively adapted to be electrically connected to electrical components of the battery (10); and the deformation portion (230) is adapted to be arranged on an end surface of a battery cell (100) along its own thickness direction.

Description

Conductive connection strip, end plate assembly, battery and electrical equipment

[0001] The present application claims priority to the Chinese patent application No. 202422339810.1, filed on September 24, 2024, and entitled "Conductive connection strip, end plate assembly, battery and electrical equipment", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of batteries, in particular to a conductive connection strip, an end plate assembly, a battery and electrical equipment. BACKGROUND

[0003] With the development of science and technology, more and more electrical equipment uses batteries as energy storage and supply devices, such as new energy vehicles, communication base stations, energy storage containers, etc.

[0004] The battery includes a plurality of battery cells arranged along the thickness direction. In the long-term use process, the large surface of the battery cell in the thickness direction is prone to generate a large expansion force. In some situations, the conductive strip of the battery needs to cross the large surface of the battery cell in the thickness direction. The conductive strip may be pushed open by the expansion force of the battery cell, causing the conductive strip to be separated from the battery cell and resulting in a broken contact, which affects normal use. SUMMARY

[0005] In view of the above problems, the embodiments of the present application provide a conductive connection strip, an end plate assembly, a battery and electrical equipment. By arranging the conductive connection strip, when the battery cell expands, the deformation part will deform accordingly to absorb the expansion amount of the battery cell, so that the first connection part and the second connection part remain electrically connected with the electrical part of the battery, thereby avoiding the occurrence of the broken contact phenomenon.

[0006] In one aspect, the embodiments of the present application provide a conductive connection strip for a battery, comprising:

[0007] The first connection part, the deformation part and the second connection part are connected on both sides of the deformation part along the first direction respectively, the first connection part and the second connection part are adapted to be electrically connected with the electrical part of the battery respectively, and the deformation part is adapted to be arranged on the end surface of the battery cell along the thickness direction thereof.

[0008] When the battery cell expands due to internal chemical reaction or external environmental factors during use, the middle part of the battery cell will expand outward. At this time, the deformation part of the conductive connection strip will deform accordingly to absorb the expansion amount of the battery cell, so that the first connection part and the second connection part remain electrically connected with the electrical part of the battery. The expansion of the battery cell will not damage the electrical connection, thereby avoiding the occurrence of the broken contact phenomenon and ensuring the normal use of the battery.

[0009] In some possible implementations, the deformation part includes at least one stretch structure configured to be variable in length along the first direction.

[0010] When the battery cell swells due to internal chemical reactions or external environmental factors, the stretch structure can be correspondingly elongated to absorb the length change caused by the swelling of the battery cell.

[0011] In some possible implementations, the stretch structure includes a body segment and a deformation segment, the body segment extends along the first direction, and both ends of the body segment are connected with the deformation segment.

[0012] One end of the deformation segment is connected with the body segment, and the other end extends obliquely relative to the body segment, and the two deformation segments are connected with the first connecting part and the second connecting part respectively.

[0013] When the battery cell swells, the outward expansion force of the middle part of the battery cell acts on the conductive connection row, at this time, the deformation segment of the stretch structure will first feel the action of the swelling force and be elastically deformed to extend obliquely. Since the deformation segment is connected with the body segment, the body segment will also be deformed to a certain extent, and the deformation will propagate along the length direction of the stretch structure, realizing the stretching to adapt to the deformation of the battery cell, thereby maintaining the stability of the connection between the first connecting part and the second connecting part and the battery cell.

[0014] In some possible implementations, the number of the stretch structures is multiple, and the multiple stretch structures are arranged oppositely along a second direction, the second direction being perpendicular to the first direction.

[0015] One of the deformation segments of each stretch structure is connected with the first connecting part, and the other deformation segment of each stretch structure is connected with the second connecting part.

[0016] When the battery cell swells, the outward expansion force of the middle part of the battery cell acts on the two stretch structures uniformly, and the two stretch structures can simultaneously feel the action of the force and be elastically deformed through the respective deformation segments. The deformation propagates along the length direction of the stretch structure, so that the length of the overall structure of the conductive connection row is elongated, realizing the stretching to adapt to the deformation of the battery cell, and maintaining the stability of the connection between the first connecting part and the second connecting part and the battery cell.

[0017] In some possible implementations, the oblique directions of the deformation segments of two adjacent stretch structures are opposite.

[0018] When the battery cell expands, the opposite direction of the tilt deformation can offset part of the stress, thereby enhancing the stability of the whole conductive connection row in the thickness direction of the battery cell. In this way, the conductive connection row is prevented from being deformed or broken too much under the action of the expansion force of the battery cell.

[0019] In some possible implementation manners, the conductive connection row further includes an elastic reset member, the elastic reset member is arranged between the two tensile structures, and two ends of the elastic reset member are connected with the two tensile structures respectively.

[0020] When the battery cell expands or the conductive connection row is subjected to an external force to cause the tensile structure to deform, the elastic reset member can store energy and release the energy after the external force disappears, so that the tensile structure returns to the original position, ensuring the reset ability of the conductive connection row and helping to maintain the structural stability of the battery.

[0021] In some possible implementation manners, the elastic reset member includes an elastic section and a fixed section, the fixed section is two, and the two fixed sections are respectively located at two ends of the elastic section in the second direction and are fixedly connected with the corresponding tensile structure.

[0022] When the external force disappears, the wave-shaped structure can quickly release the stored energy, so that the elastic reset member returns to the original shape and realizes the reset function. In addition, the wave-shaped structure has good elastic performance and can maintain stable elasticity within a wide deformation range, thereby ensuring the elastic strength of the elastic section.

[0023] In some possible implementation manners, the conductive connection row includes a plurality of foil layers, and the plurality of foil layers are sequentially stacked in the thickness direction to form the deformation part.

[0024] The plurality of foil layers are stacked in the thickness direction, so that the deformation part can absorb and disperse stress through the relative movement and deformation of each foil layer when subjected to the expansion force of the battery cell. This design increases the flexibility and elasticity of the deformation part, reduces the risk of fracture caused by stress concentration, and prolongs the service life of the conductive connection row.

[0025] In some possible implementation manners, the foil layer is an aluminum foil layer.

[0026] The foil layer has good electrical conductivity, in addition to good ductility and deformation ability, corrosion resistance and oxidation resistance, light weight and easy processing, and the like, thereby improving the reliability of the conductive connection row.

[0027] In some possible implementation manners, the first connection part includes a first connection side plate and a second connection side plate.

[0028] The first connection side plate is connected between the second connection side plate and the deformation part.

[0029] The second connecting side plate is arranged at an angle with the first connecting side plate, and is used to connect with the electrode of the battery cell.

[0030] When the first connecting side plate can be deformed in the first direction with the stretching of the deformation part, the second connecting side plate does not directly participate in the deformation, and thus, the stable connection between the second connecting side plate and the electrode of the battery cell can be ensured, and the stability and safety of the battery as a whole are ensured.

[0031] In another aspect, the embodiments of the present application also provide an end plate assembly, which comprises a mounting plate and the conductive connecting row in any possible implementation manner described above, and the mounting plate is adapted to be arranged on the end surface of the battery cell along the thickness direction of the battery cell.

[0032] The conductive connecting row is mounted on the mounting plate.

[0033] The mounting plate provides physical support for the battery cell, preventing the battery cell from moving or being damaged due to external vibration or impact during operation. In addition, the mounting plate also provides a mounting basis for the conductive connecting row, ensuring the stability and reliability of the conductive connecting row in the battery. The mounting plate provides a common platform for the battery cell and the conductive connecting row, making the design of the battery more compact and efficient. For example, the material of the mounting plate can be plastic.

[0034] In some possible implementation manners, the mounting plate is provided with a clamping structure, and the clamping structure is clamped with the conductive connecting row.

[0035] The clamping structure firmly fixes the conductive connecting row in the mounting groove through physical clamping, effectively preventing the conductive connecting row from being pulled out of the mounting groove due to vibration, impact or other external forces, and improving the connection stability between the conductive connecting row and the mounting plate. For example, the clamping structure can be a fixed buckle, which limits the conductive connecting row when the conductive connecting row is mounted in the mounting groove.

[0036] In some possible implementation manners, the side of the mounting plate facing the conductive connecting row is provided with a plurality of reinforcing ribs.

[0037] The reinforcing ribs can effectively disperse and resist these stresses, preventing the mounting plate from bending or deforming, ensuring the load-bearing capacity of the mounting plate, and improving the stability and safety of the battery.

[0038] In some possible implementation manners, the plurality of reinforcing ribs are connected to each other to form a honeycomb shape.

[0039] The honeycomb structure has high mechanical performance and strong stability. By designing the reinforcing partition rib into a honeycomb shape, the mounting plate can more effectively disperse and resist the force from the battery cell, the conductive connecting row and the external environment, and can also uniformly disperse the force to the entire mounting plate, avoiding stress concentration and providing good rigid support for the mounting plate.

[0040] In some possible implementation manners, the mounting plate is provided with a mounting groove, and the conductive connecting row is embedded in the mounting groove.

[0041] The mounting groove enhances the connection strength between the conductive connecting row and the mounting plate, and improves the stability of the overall structure of the battery. In addition, the mounting groove provides accurate positioning for the conductive connecting row. In the assembly process, the conductive connecting row can be placed into the corresponding mounting groove to realize automatic alignment of the mounting position, thereby simplifying the assembly process and improving the accuracy and efficiency of assembly.

[0042] In some possible implementation manners, the mounting plate is provided with a clamping groove, the clamping groove penetrates through the mounting plate along a first direction, and the clamping groove is used for clamping a wire harness of the battery.

[0043] The clamping groove is arranged to fix and protect the wire harness, prevent damage of the wire harness caused by vibration, friction or other external forces, and ensure the orderliness of the battery structure.

[0044] In another aspect, the embodiment of the present application also provides a battery, which comprises a plurality of battery cells arranged along the thickness direction of the battery cells, and the conductive connecting row or the end plate assembly in any possible implementation manner described above, and the deformation part is arranged on the end surface of the battery cell along the thickness direction of the battery cell.

[0045] When the battery cell expands due to internal chemical reaction or external environmental factors during use, the middle part of the battery cell will expand outward. At this time, the deformation part of the conductive connecting row will elastically deform correspondingly to absorb the expansion amount of the battery cell, so that the first connecting part and the second connecting part remain connected with the electrodes at both ends of the battery cell. The expansion of the battery cell will not cause the disconnection of the conductive connecting row and the connection position of the battery cell, thereby avoiding the occurrence of the broken contact phenomenon. By arranging the conductive connecting row and the end plate assembly, the safety of the battery in use is ensured.

[0046] In some possible implementation manners, the battery cell comprises a first end and a second end opposite to each other along a first direction, the first end and the second end are each provided with a first electrode and a second electrode with opposite polarities, the first electrode and the second electrode of the battery cell at the same end are sequentially connected in series, and the plurality of battery cells include a first-end battery cell and a last-end battery cell.

[0047] The first connecting part and the second connecting part of one of the two conductive connecting rows are connected with the first electrodes at two ends of the head-end battery cell respectively, and the first connecting part and the second connecting part of the other of the two conductive connecting rows are connected with the second electrodes at two ends of the tail-end battery cell respectively.

[0048] The two first electrodes at two ends of the head-end battery cell are connected by one of the two conductive connecting rows, thereby realizing series connection between the positive electrodes of the head-end battery cell and forming a positive electrode output end; and the two second electrodes at two ends of the tail-end battery cell are connected by the other of the two conductive connecting rows, thereby realizing series connection between the negative electrodes of the tail-end battery cell and forming a negative electrode output end, and the series connection structure improves the total voltage of the battery.

[0049] In some possible implementation manners, the battery further includes an aerogel layer, the conductive connecting row is mounted on a side of the mounting plate away from the battery cell, and the aerogel layer is arranged between the battery cell and the mounting plate.

[0050] The aerogel is a lightweight nano-porous material and has an extremely low thermal conductivity, and therefore has good heat insulation performance. In the battery, the aerogel can effectively insulate the heat conduction of the battery cell, prevent heat accumulation and overheat of the battery cell, and improve the safety performance of the battery.

[0051] In some possible implementation manners, the battery further includes a connecting piece, a plurality of the connecting pieces are arranged at two ends of the battery cell in the first direction, and the first electrode and the second electrode of two adjacent battery cells at the same end are electrically connected by the connecting pieces.

[0052] The connecting pieces are arranged, thereby realizing that the current passes through each battery cell in sequence through the connecting pieces, and improving the total voltage and capacity of the battery module. The plurality of connecting pieces fix the battery cells together, prevent the battery cells from moving or mispositioning in the battery, and ensure the overall stability of the battery.

[0053] In another aspect, the embodiments of the present application also provide a power utilization device including the battery in any of the possible implementation manners.

[0054] The conductive connecting row is arranged, so that the expansion of the battery cell does not cause the conductive connecting row to be disconnected at the connection position of the electrical component of the battery, thereby avoiding the occurrence of the broken contact phenomenon, ensuring the normal use of the battery, and better supplying power to the power utilization device. BRIEF DESCRIPTION OF DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0056] Fig. 1 is a structural schematic diagram of a battery according to an embodiment of the present application;

[0057] Fig. 2 is an exploded view of the battery according to an embodiment of the present application;

[0058] Fig. 3 is a structural schematic diagram of the conductive connecting row in Fig. 2;

[0059] Fig. 4 is a structural schematic diagram of the connecting sheet in Fig. 1;

[0060] Fig. 5 is a structural schematic diagram of the mounting plate in Fig. 1 from one perspective;

[0061] Fig. 6 is a structural schematic diagram of the mounting plate in Fig. 1 from another perspective;

[0062] Fig. 7 is a structural schematic diagram of the conductive connecting row in Fig. 2 from another perspective;

[0063] Fig. 8 is a schematic diagram of an electric device according to an embodiment of the present application.

[0064] Legend of reference signs: 10 - battery; 100 - battery cell; 100a - first electrode; 100b - second electrode; 100A - first end battery cell; 100B - last end battery cell; 200 - conductive connecting row; 210 - first connecting part; 211 - first connecting side plate; 212 - second connecting side plate; 220 - second connecting part; 230 - deformation part; 230a - stretching structure; 231 - body segment; 232 - deformation segment; 240 - foil layer; 300 - connecting sheet; 310 - first side part; 320 - second side part; 330 - third side part; 400 - mounting plate; 410 - mounting groove; 420 - clamping structure; 430 - reinforcing partition; 440 - clamping groove; 500 - elastic reset member; 510 - elastic segment; 520 - fixed segment; 600 - fixing member; 700 - connecting member; 800 - electric device. DETAILED DESCRIPTION

[0065] In order to make the above objectives, characteristics and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0066] With the development of science and technology, more and more electrical equipment uses batteries as energy storage and supply devices, such as new energy vehicles, communication base stations, energy storage containers, etc. Among them, the blade battery has been widely used due to its high energy density, high safety and long service life.

[0067] The battery includes a plurality of battery cells arranged in the thickness direction. During long-term use, the large surface of the battery cell in the thickness direction is prone to generate a large expansion force. In some situations, the conductive row of the battery needs to cross the large surface of the battery cell in the thickness direction. The conductive row may be pushed open by the expansion force of the battery cell, causing the conductive row to be disconnected from the connection position of the electrical part of the battery, affecting normal use.

[0068] Therefore, the embodiments of the present application provide a conductive connection row, an end plate assembly, a battery and an electrical equipment. By arranging the conductive connection row, when the battery cell expands due to internal chemical reaction or external environmental factors during use, the middle part of the battery cell will expand outward. At this time, the deformation part of the conductive connection row will deform accordingly to absorb the expansion amount of the battery cell, so that the first connection part and the second connection part remain electrically connected with the electrical part of the battery. The expansion of the battery cell will not cause the conductive connection row to be disconnected from the connection position of the electrical part of the battery, thereby avoiding the occurrence of the disconnection phenomenon.

[0069] The conductive connection row provided by the embodiments of the present application will be described in detail below with reference to FIGS. 1-7.

[0070] In the illustration, x is the first direction, z is the second direction, and y is the third direction.

[0071] The conductive connection row 200 provided by the embodiments of the present application is used for the battery 10, as shown in FIGS. 1, 2 and 3. The conductive connection row 200 includes a first connection part 210, a deformation part 230 and a second connection part 220. The first connection part 210 and the second connection part 220 are respectively connected on both sides of the deformation part 230 along the first direction. The first connection part 210 and the second connection part 220 are respectively adapted to be electrically connected with the electrical part of the battery 10,

[0072] Optionally, the electrical component can be an electrode lead-out component, or can be a pole of the battery cell 100. For example, the first connecting portion 210 and the second connecting portion 220 are respectively connected to positive electrodes at two ends of the battery cell 100, or are respectively connected to negative electrodes at two ends of the battery cell 100.

[0073] Optionally, the deformation portion 230 can be elastically deformed, or can be flexibly deformed. In some other embodiments, the deformation portion 230 can also be plastically deformed.

[0074] The deformation portion 230 is a core part of the conductive connecting row 200, and is suitable to be arranged on an end surface of the battery cell 100 along a thickness direction of the battery cell 100. This design allows the conductive connecting row 200 to be deformed to adapt to a length change of the battery cell 100 during expansion of the battery cell 100, so as to maintain close connection between the conductive connecting row 200 and the battery cell 100.

[0075] Specifically, when the battery cell 100 expands due to internal chemical reactions or external environmental factors during use, the middle part of the battery cell 100 expands outward. At this time, the deformation portion 230 of the conductive connecting row 200 deforms correspondingly to absorb the expansion amount of the battery cell 100, so that the first connecting portion 210 and the second connecting portion 220 remain connected to the electrodes at two ends of the battery cell 100. The expansion of the battery cell 100 does not cause the conductive connecting row 200 to be disconnected at the connection position with the battery cell 100, thereby avoiding the occurrence of a broken contact phenomenon and ensuring normal use of the battery 10.

[0076] Optionally, an insulating layer can be arranged outside the conductive connecting row 200. The insulating layer is coated on the insulating connecting row by a hot-pressing process. Specifically, the insulating connecting row and the insulating material are combined by heating and applying pressure to improve the insulation performance of the insulating connecting row. It should be noted that conductive materials, corrosion-resistant materials, and the like can be coated on the conductive connecting row 200 by the hot-pressing process. The specific material and structure form can be selected according to actual needs, which are not limited herein.

[0077] In some embodiments, referring to FIGS. 2 and 3, the deformation portion 230 includes at least one stretch structure 230a configured to have a variable length in a first direction. When the battery cell 100 expands due to internal chemical reactions or external environmental factors, the stretch structure 230a can correspondingly elongate to absorb the length change caused by the expansion of the battery cell 100. Specifically, the stretch structure 230a needs to be made of a material having good elasticity and toughness, or a mechanical structure capable of realizing length adjustability. The specific material and structure form can be selected according to actual needs. It should be noted that any material or structure that can deform to adapt to or absorb the expansion amount of the battery cell 100 is within the protection scope of the present application, which is not limited herein.

[0078] In some embodiments, referring to FIG. 3, the tensile structure 230a includes a body segment 231 and a deformation segment 232, the body segment 231 extends along the first direction, the body segment 231 ensures the installation stability of the entire tensile structure 230a, and the body segment 231 is also the basis for the connection of the deformation segment 232, both ends of the body segment 231 are connected with the deformation segment 232, one end of the deformation segment 232 is connected with the body segment 231, and the other end extends obliquely relative to the body segment 231 and is connected with the first connecting part 210 or the second connecting part 220, the oblique extension design makes the deformation segment 232 more easily elastically deformed when subjected to external force, and the other ends of the two deformation segments 232 are respectively connected with the first connecting part 210 and the second connecting part 220, which ensures that the deformation of the tensile structure 230a can be transmitted to the first connecting part 210 and the second connecting part 220 when the battery cell 100 swells, and the first connecting part 210 and the second connecting part 220 ensure the strength and stability of the tensile structure 230a.

[0079] When the battery cell 100 swells, the force of the outward expansion of the middle part of the battery cell 100 acts on the conductive connection row 200, at this time, the deformation segment 232 of the tensile structure 230a will first feel the action of the swelling force and elastically deform obliquely. Since the deformation segment 232 is connected with the body segment 231, the body segment 231 will also deform to a certain extent accordingly, and this deformation will propagate along the length direction of the tensile structure 230a, realize the stretching to adapt to the deformation of the battery cell 100, and thus maintain the stability of the connection between the first connecting part 210 and the second connecting part 220 and the battery cell 100.

[0080] In some embodiments, referring to FIG. 3, the number of the tensile structure 230a is multiple, and the multiple tensile structures 230a are arranged relative to each other along the second direction (for example, the z direction), and the second direction is perpendicular to the first direction, so that the two tensile structures 230a can simultaneously bear the force generated when the battery cell 100 swells, disperse the stress, and further improve the operation stability of the conductive connection row 200, one of the deformation segments 232 of each tensile structure 230a is connected with the first connecting part 210, and the other deformation segment 232 of each tensile structure 230a is connected with the second connecting part 220, so as to ensure that the two tensile structures 230a can work cooperatively to adjust the distance between the first connecting part 210 and the second connecting part 220 when the battery cell 100 swells.

[0081] When the battery cell 100 expands, the outward expansion force of the middle part of the battery cell 100 acts uniformly on the two stretch structures 230a, and the two stretch structures 230a can simultaneously feel the force and elastically deform through the respective deformation sections 232. The deformation propagates along the length direction of the stretch structure 230a, so that the length of the overall structure of the conductive connection row 200 is elongated, the expansion of the battery cell 100 is adapted, and the stability of the connection between the first connection part 210 and the second connection part 220 and the battery cell 100 is maintained.

[0082] Further, referring to FIG. 3, the two stretch structures 230a form a stable middle frame structure. When the battery cell 100 expands, the middle region of the battery cell 100 is often the most serious bulging region. The middle frame structure avoids the middle segment of the battery cell 100 expansion, avoids excessive deformation of the conductive connection row 200, and prolongs the service life of the conductive connection row 200.

[0083] In some embodiments, referring to FIG. 2, the inclination directions of the deformation sections of the two adjacent stretch structures are opposite. In this way, when the inclination directions of the deformation sections of the two adjacent stretch structures are opposite, a mutual support structure is formed. When the battery cell 100 expands, the opposite direction inclination deformation cancels out part of the stress, thereby enhancing the stability of the entire conductive connection row 200 in the thickness direction of the battery cell 100. In this way, the conductive connection row 200 is prevented from being excessively deformed or broken under the action of the expansion force of the battery cell 100.

[0084] In addition, the deformation section design with opposite inclination directions enables the conductive connection row 200 to uniformly disperse stress when bearing the expansion force of the battery cell 100, reduces the stress concentration phenomenon, and improves the durability and service life of the conductive connection row 200.

[0085] In some embodiments, referring to FIGS. 2 and 6, the battery 10 further includes an elastic reset member 500. The elastic reset member 500 is arranged between the two stretch structures 230a, and the two ends of the elastic reset member 500 are connected to the two stretch structures 230a, respectively. The elastic reset member 500 provides elastic support between the two stretch structures 230a, ensures that the two stretch structures 230a can move relative to each other within a certain range, and maintains stable connection.

[0086] Specifically, when the battery cell 100 expands or the conductive connection row 200 is subjected to an external force to cause the stretch structure 230a to deform, the elastic reset member 500 can store energy and release the energy after the external force disappears, so that the stretch structure 230a returns to the original position, ensuring the reset ability of the conductive connection row 200 and helping to maintain the structural stability of the battery 10.

[0087] Exemplarily, the material of the elastic reset member 500 can be spring steel, rubber, silica gel, or other elastic materials. The specific material can be selected according to the specific requirements and working environment of the battery 10, and is not limited herein. In addition, exemplarily, the structure of the elastic reset member 500 can be a spiral spring, a leaf spring, a rubber pad, or other different structural forms. The specific material can be designed according to the specific requirements and working environment of the battery 10, and is not limited herein.

[0088] In some embodiments, referring to FIG. 6, the elastic reset member 500 includes an elastic section 510 and two fixed sections 520, the two fixed sections 520 are respectively located at the two ends of the elastic section 510 along the second direction, and are fixedly connected with the corresponding tensile structure 230a. The elastic section 510 is in a wave shape. The wave shape structure enables the elastic reset member 500 to be more easily elastically deformed and store energy when subjected to an external force. When the external force disappears, the wave shape structure can quickly release the stored energy, so that the elastic reset member 500 returns to the original shape and realizes the reset function. In addition, the wave shape structure has good elastic performance and can maintain stable elasticity within a wide deformation range, thereby ensuring the elastic strength of the elastic section 510.

[0089] In some embodiments, referring to FIG. 6, the elastic section 510 is fixed on the mounting plate 400, and the fixed position of the elastic section 510 is the middle part of the mounting plate 400. Exemplarily, the fixing mode can be bolting, riveting, welding, or the like. In an example, referring to FIG. 6, a fixing member 600 can be arranged between the elastic section 510 and the mounting plate 400. The fixing member 600 can be a bolt. The elastic section 510 and the mounting plate 400 are both provided with matching threads, and the connection and fixation between the elastic section 510 and the mounting plate 400 are realized through thread cooperation.

[0090] In this way, when the conductive connecting row 200 is subjected to an external force, the elastic section 510 can play the role of elastic reset, so that the tensile structure 230a is kept in a proper position, and the fixation among the elastic reset member 500, the mounting plate 400, and the conductive connecting row 200 is realized, thereby jointly inhibiting the swelling of the battery cell 100.

[0091] In some embodiments, referring to FIGS. 1, 2, and 7, the conductive connecting row 200 includes a plurality of foil layers 240, and the plurality of foil layers 240 are sequentially stacked along the thickness direction to form the deformation part 230. In this way, the plurality of foil layers 240 are stacked along the thickness direction, so that the deformation part 230 can absorb and disperse stress through the relative movement and deformation of each layer of foil when subjected to the swelling force of the battery cell 100. This design increases the flexibility and elasticity of the deformation part 230, reduces the risk of fracture caused by stress concentration, and prolongs the service life of the conductive connecting row 200.

[0092] In addition, the plurality of foil layers 240 are stacked to form a plurality of conductive paths. If one of the foil layers is broken or fails to make contact due to some reason, the other foil layers can still maintain the conductive connection, ensuring the conductive performance and stability of the entire conductive connection row 200.

[0093] In some embodiments, referring to FIG. 7, the foil layer 240 is an aluminum foil layer. In this way, the foil layer 240 has good conductivity, and in addition, has good ductility and deformation ability, corrosion resistance and oxidation resistance, light weight and easy processing, and the like, improving the reliability of the conductive connection row 200.

[0094] In some embodiments, referring to FIG. 3, the first connection portion 210 includes a first connection side plate 211 and a second connection side plate 212, the first connection side plate 211 is connected between the second connection side plate 212 and the deformation portion 230, and the second connection side plate 212 is arranged at an angle to the first connection side plate 211. Optionally, the second connection side plate 212 is perpendicular to the first connection side plate 211, and the second connection side plate 212 is used to connect with the electrode of the battery cell 100. The third direction is perpendicular to the first direction. In this way, the first connection side plate 211 and the second connection side plate 212 form an L-shaped structure. When the first connection side plate 211 can adaptively deform in the first direction with the stretching of the deformation portion 230, the second connection side plate 212 does not directly participate in the deformation. Therefore, the second connection side plate 212 and the electrode of the battery cell 100 can still ensure stable connection, ensuring the stability and safety of the battery 10 as a whole.

[0095] For example, the connection between the second connection side plate 212 and the battery cell 100 can be welding. The second connection side plate 212 is provided with a welding positioning hole. Before welding, the relative position between the second connection side plate 212 and the battery cell 100 is determined through the welding positioning hole, so as to improve the accuracy of the welding position.

[0096] In some embodiments, referring to FIGS. 3 and 4, the second connecting portion 220 includes an extension portion extending beyond the second end of the battery cell 100 in the first direction, and the conductive connecting strip 200 further includes a connecting tab 300, which includes a first side portion 310, a second side portion 320, and a third side portion 330, which are perpendicular to each other in pairs. The first side portion 310 is connected to the electrode of the second end of the battery cell 100, ensuring that the electrical energy of the battery cell 100 can be transmitted to the connecting tab 300. The second side portion 320 is connected to the extension portion, ensuring that the connecting tab 300 is firmly fixed on the battery 10 and can transmit the electrical energy of the battery cell 100 to the external circuit or other components of the battery 10 through the second connecting portion 220. The third side portion 330 is connected to the external circuit, realizing the electrical connection between the battery 10 and external devices. The design of the first side portion 310, the second side portion 320, and the third side portion 330 of the connecting tab 300 perpendicular to each other enables the connecting tab 300 to realize multi-dimensional connection in a limited space, improving the connection density and electrical transmission efficiency of the battery 10 module.

[0097] For example, the connecting mode between the connecting tab 300 and the conductive connecting strip 200 and the battery cell 100 is welding, and a plurality of welding positioning holes are formed on the connecting tab 300. Before welding, the relative positions between the holes are determined to improve the accuracy of the welding position. In addition, the connecting mode can also be bolt connection, riveting, etc., which can be determined according to actual needs, and is not limited here.

[0098] In some embodiments, the conductive connecting strip 200 can be an aluminum strip. Due to its material properties, the aluminum strip can withstand deformation to a certain extent without breaking or failing. In the battery 10, the battery cell 100 will expand and deform during the charging and discharging process. By setting the conductive connecting strip 200 as an aluminum strip, the deformation of the aluminum strip can effectively absorb and relieve these stresses, so that the expansion of the battery cell 100 will not cause the conductive connecting strip 200 to disconnect at the connecting position with the battery cell 100, thereby avoiding the occurrence of the broken contact phenomenon.

[0099] In addition, by setting the conductive connecting strip 200 as an aluminum strip, the circuit transmission between the electrical signal and the external circuit or adjacent battery cell 100 can be realized, ensuring the normal operation of the battery 10. In addition, aluminum has a lower density than other conductive materials such as copper, so using aluminum can reduce the overall weight of the battery 10. In addition, aluminum is one of the most common and abundant metals, and its price is relatively low, which can reduce the production cost of the battery 10.

[0100] In addition, the application also provides an end plate assembly, comprising a mounting plate and the conductive connecting row 200 in any of the above embodiments, the mounting plate is suitable for being arranged on the end surface of the battery cell 100 along the thickness direction (for example, the third direction, that is, the y direction) of the battery cell 100; and the conductive connecting row 200 is mounted on the mounting plate.

[0101] The mounting plate 400 provides physical support for the battery cell 100, preventing it from moving or being damaged due to external force vibration or impact during operation. In addition, it also provides a mounting basis for the conductive connecting row 200, ensuring the stability and reliability of the conductive connecting row 200 in the battery 10. The mounting plate 400 provides a common platform for the battery cell 100 and the conductive connecting row 200, making the design of the battery 10 more compact and efficient. For example, the material of the mounting plate 400 can be plastic.

[0102] It should be noted that the mounting plate 400 can also be mounted with temperature sensors, heat sinks and other components to assist the operation of the battery 10, which can be determined according to actual needs.

[0103] In some embodiments, referring to FIGS. 5 and 6, the edge of the mounting groove 410 is provided with a clamping structure 420 which is clamped with the conductive connecting row 200. The clamping structure 420 firmly fixes the conductive connecting row 200 in the mounting groove 410 by physical clamping, effectively preventing the conductive connecting row 200 from being pulled out of the mounting groove 410 due to vibration, impact or other external forces, and improving the connection stability between the conductive connecting row 200 and the mounting plate 400. For example, the clamping structure 420 can be a fixed buckle which limits the conductive connecting row 200 when it is installed in the mounting groove 410.

[0104] In some embodiments, referring to FIG. 5, the side of the mounting plate 400 facing the conductive connecting row 200 is provided with a plurality of reinforcing ribs 430 to enhance the strength of the mounting plate 400. During the operation of the battery 10, it may be subjected to stresses such as expansion force from the battery cell 100, external impact or vibration. The reinforcing ribs 430 can effectively disperse and resist these stresses, preventing the mounting plate 400 from bending or deforming, ensuring the load bearing capacity of the mounting plate 400 and improving the stability and safety of the battery 10.

[0105] In some embodiments, referring to FIGS. 2 and 5, the plurality of reinforcing ribs 430 are connected to each other to form a honeycomb shape. The honeycomb structure has high mechanical properties and strong stability. By designing the reinforcing ribs 430 into a honeycomb shape, the mounting plate 400 can more effectively disperse and resist the forces from the battery cell 100, the conductive connecting row 200 and the external environment, and can also evenly disperse the forces to the entire mounting plate 400, avoiding stress concentration and providing good rigid support for the mounting plate 400.

[0106] In some embodiments, referring to FIGS. 5 and 6, the mounting plate 400 is provided with mounting grooves 410, and the conductive connecting strips 200 are embedded in the mounting grooves 410. The mounting grooves 410 enhance the connection strength between the conductive connecting strips 200 and the mounting plate 400, and improve the stability of the overall structure of the battery 10. In addition, the mounting grooves 410 provide precise positioning for the conductive connecting strips 200. During assembly, the conductive connecting strips 200 can be placed into the corresponding mounting grooves 410 to achieve automatic alignment of the installation position, thereby simplifying the assembly process and improving the accuracy and efficiency of assembly.

[0107] Optionally, the opening of the mounting groove 410 is designed as an inclined angle, which can provide better guidance, so that the conductive connecting strip 200 can be more easily slid or clamped into the receiving groove during installation, thereby improving the installation efficiency.

[0108] In some embodiments, referring to FIGS. 2 and 4, the mounting plate is provided with a clamping groove 440, which penetrates the mounting plate along a first direction, and the clamping groove 440 is used to clamp the wire harness of the battery 10. The clamping groove 440 is provided to fix and protect the wire harness, prevent damage of the wire harness due to vibration, friction or other external forces, and ensure the orderliness of the structure of the battery 10.

[0109] In addition, the present application also provides a battery 10. It should be noted that the battery 10 can be a primary battery or a secondary battery. The primary battery refers to a battery that cannot be reused after discharge, and the secondary battery refers to a battery that can be reused by activating the active material through charging after discharge. The battery 10 can be a lithium ion battery, a sodium ion battery, a sodium-lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium ion battery, a nickel-cadmium battery, etc. The battery 10 can be a prismatic battery, a cylindrical battery, or a soft-pack battery, or other shapes. The present application is not limited in this regard, and the present application will be specifically described with a prismatic battery as an example.

[0110] The battery 10 includes a plurality of battery cells 100 arranged along the thickness direction of the battery 10, and the conductive connecting strip 200 or the end plate assembly in any of the above embodiments, and the deformed portion 230 is arranged on the end surface of the battery cell 100 along the thickness direction of the battery 10.

[0111] When the battery cell 100 expands due to internal chemical reaction or external environmental factors during use, the middle part of the battery cell 100 expands outward, at this time, the deformed part 230 of the conductive connecting row 200 deforms accordingly to absorb the expansion amount of the battery cell 100, so that the first connecting part 210 and the second connecting part 220 remain electrically connected with the electrical parts of the battery 10, and the expansion of the battery cell 100 will not cause the connection position of the conductive connecting row 200 and the electrical parts of the battery 10 to be disconnected, thereby avoiding the occurrence of the broken contact phenomenon. By arranging the conductive connecting row 200 and the end plate assembly, the safety of the battery 10 in use is ensured.

[0112] In some embodiments, referring to FIG. 1, the battery cell 100 includes a first end and a second end opposite in the first direction, and the first end and the second end are each provided with a first electrode 100a and a second electrode 100b with opposite polarities, the first electrodes 100a and the second electrodes 100b at the same end of the plurality of battery cells 100 are sequentially electrically connected to be in series, and the plurality of battery cells 100 includes a first-end battery cell 100A and a last-end battery cell 100B; the conductive connecting row 200 is two, and the first connecting part 210 and the second connecting part 220 of one of the conductive connecting rows 200 are respectively connected with the first electrodes 100a at the two ends of the first-end battery cell 100A, and the first connecting part 210 and the second connecting part 220 of the other conductive connecting row 200 are respectively connected with the second electrodes 100b at the two ends of the last-end battery cell 100B.

[0113] For example, the first electrode 100a is a positive electrode, and the second electrode 100b is a negative electrode.

[0114] Specifically, the two first electrodes 100a at the two ends of the first-end battery cell 100A are connected by one conductive connecting row 200 to realize the series connection between the positive electrodes of the first-end battery cell 100A, thereby forming a positive electrode output end, and the two second electrodes 100b at the two ends of the last-end battery cell 100B are connected by the other conductive connecting row 200 to realize the series connection between the negative electrodes of the last-end battery cell 100B, thereby forming a negative electrode output end, and the series connection structure improves the total voltage of the battery 10. It should be noted that the number of battery cells 100 or the arrangement mode of the battery cells 100 can be selected according to the actual required capacity and voltage parameters of the battery 10, and is not limited herein.

[0115] For example, the battery cell 100 can be a battery cell 100 of a blade battery, or can be a battery cell 100 of any battery cell module including two groups or even more groups of poles, and any battery 10 with an electric circuit design that realizes the series connection of the single-end electrodes of the battery cell 100 and then the parallel connection of the two ends of the battery cell 100 is within the protection scope of the present application, and the embodiments of the present application are not limited in this regard.

[0116] In addition, the battery cell 100 can be a battery cell 100 of a blade battery, or a battery cell 100 of any battery cell module including four pole posts. Any battery 10 that realizes the design of connecting the battery cell 100 in a single-end two-electrode series and then connecting the battery cell 100 in a two-end parallel electric circuit is within the protection scope of the present application, and the embodiments of the present application do not limit this.

[0117] Correspondingly, referring to FIGS. 1 and 2, the connecting piece 300 is provided with two, and the two connecting pieces 300 are connected to the two conductive connection rows 200 provided at the first end battery cell 100A and the last end battery cell 100B. During the current fast charging process, the current flowing from the positive output end will be shunted to the two sides of the battery cell 100, and the current will be halved. When the current is halved during the large current fast charging, the conductive connection row 200 will have a lower temperature and a smaller internal resistance.

[0118] In some embodiments, the battery 10 further includes an aerogel layer, the conductive connection row 200 is installed on the side of the mounting plate away from the battery cell 100, and the aerogel layer is arranged between the battery cell 100 and the mounting plate. Specifically, aerogel is a lightweight nano-porous material with extremely low thermal conductivity, and therefore has good heat insulation performance. In the battery 10, the aerogel can effectively insulate the heat conduction of the battery cell 100, prevent heat accumulation and overheating of the battery cell 100, and improve the safety performance of the battery 10.

[0119] In some embodiments, the battery 10 further includes an adhesive, and the mounting plate 400 is connected to the aerogel layer through the adhesive. Specifically, the adhesive can firmly adhere the mounting plate 400 to the aerogel layer, ensuring the stability of the position of the mounting plate 400 in the battery 10, and preventing loosening or falling off due to vibration or impact. Specifically, the core of the adhesive is an adhesive, and the material of the adhesive can be epoxy glue, silicone glue, polyurethane glue, etc. The specific material can be selected according to the specific requirements and working environment of the battery 10, which is not limited herein.

[0120] In some embodiments, in combination with FIGS. 2 and 4, the battery 10 further includes a connecting piece 700, and a plurality of connecting pieces 700 are arranged at the two ends of the plurality of battery cells 100 along the first direction, and the first electrode 100a and the second electrode 100b of the adjacent two battery cells 100 at the same end are electrically connected through the connecting piece 700. The arrangement of the connecting piece 700 realizes the flow of current through each battery cell 100 in turn through the connecting piece 700, and improves the total voltage and capacity of the battery 10 module. The plurality of connecting pieces 700 fix the battery cells 100 together, preventing the battery cells 100 from moving or misplacing inside the battery 10, and ensuring the overall stability of the battery 10. The connecting relationship between the connecting piece 700 and the battery cell 100 can be welding, bolt connection, buckle connection, etc., and the specific connection mode can be selected according to the specific requirements and working environment of the battery 10, which is not limited herein.

[0121] In addition, the application also provides a power consuming device 800 comprising any battery 10 mentioned in the above embodiments. The power consuming device 800 can be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, etc.

[0122] The vehicle can be a new energy vehicle, such as a pure electric vehicle (PEV / BEV), a range extended electric vehicle (REEV), a hybrid electric vehicle (HEV), a fuel cell electric vehicle, etc. The vehicle can also be any vehicle comprising the battery 10. The application does not specially limit the power consuming device 800.

[0123] Referring to FIG. 8, the power consuming device 800 of the present embodiment is provided with the conductive connecting row 200, so that the expansion of the battery cell 100 does not cause the conductive connecting row 200 to be disconnected from the connecting position of the electrical component of the battery 10, thereby avoiding the occurrence of the broken contact phenomenon, ensuring the normal use of the battery 10, and thus better supplying power to the power consuming device 800.

[0124] The embodiments or implementations in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be mutually referred to.

[0125] It should be noted that the embodiments referred to in the specification as “one embodiment”, “an embodiment”, “exemplary embodiment”, “some embodiments” and the like can include specific features, structures or characteristics, but not necessarily every embodiment includes the specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in combination with other embodiments that are explicitly or implicitly described.

[0126] Generally, the terms should be understood at least partly by the use in the context. For example, at least partly according to the context, the term “one or more” used in the specification can be used to describe any feature, structure or characteristic in the singular sense, or can be used to describe a combination of features, structures or characteristics in the plural sense. Similarly, at least partly according to the context, terms such as “a” or “an” can be understood to convey a singular usage or a plural usage.

[0127] It should be readily understood that "on," "over," and "above" in the present disclosure should be interpreted in the broadest manner such that "on" means not only "directly on" but also includes the meaning of "on" with intervening features or layers therebetween, and "over" or "above" includes not only the meaning of "over" or "above" but also the meaning of "over" or "above" with no intervening features or layers therebetween (i.e., directly on).

[0128] Finally, it should be noted that the above-described embodiments are merely intended to illustrate the technical solutions of the present application, but not to limit the same; even though the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions recorded in the foregoing embodiments, or equivalent replacements can be made to some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An electrically conductive busbar (200), characterized in that A battery (10) comprises: a first connecting portion (210), a deformation portion (230) and a second connecting portion (220), the first connecting portion (210) and the second connecting portion (220) are connected on both sides of the deformation portion (230) along a first direction respectively, the first connecting portion (210) and the second connecting portion (220) are adapted to be electrically connected with electrical components of the battery (10) respectively, and the deformation portion (230) is adapted to be arranged on an end surface of a cell (100) of the battery (10) along a thickness direction of the cell (100).

2. The electrically conductive busbar (200) according to claim 1, characterized in that The deformation portion (230) comprises at least one stretch structure (230a) which is configured to be variable in length along the first direction.

3. The electrically conductive busbar (200) according to claim 2, characterized in that The stretch structure (230a) comprises a body segment (231) and a deformation segment (232), the body segment (231) extends along the first direction, and both ends of the body segment (231) are connected with the deformation segment (232); One end of the deformation segment (232) is connected with the body segment (231), and the other end extends obliquely relative to the body segment (231), and the two deformation segments (232) are connected with the first connecting portion (210) and the second connecting portion (220) respectively.

4. The electrically conductive busbar (200) according to claim 3, characterized in that The number of the stretch structures (230a) is multiple, and the multiple stretch structures (230a) are oppositely arranged along a second direction, and the second direction is perpendicular to the first direction; One of the deformation segments (232) of each stretch structure (230a) is connected with the first connecting portion (210), and the other deformation segment (232) of each stretch structure (230a) is connected with the second connecting portion (220).

5. The electrically conductive busbar (200) according to claim 4, characterized in that The oblique directions of the deformation segments (232) of two adjacent stretch structures (230a) are opposite.

6. The electrically conductive busbar (200) according to claim 4, characterized in that Further comprising: a resilient reset member (500) arranged between two stretch structures (230a), and both ends of the resilient reset member (500) are connected with the two stretch structures (230a) respectively.

7. The electrically conductive busbar (200) according to claim 6, characterized in that The resilient reset member (500) comprises a resilient segment (510) and two fixed segments (520), and the two fixed segments (520) are located at both ends of the resilient segment (510) along the second direction and are fixedly connected with the corresponding stretch structures (230a).

8. The electrically conductive busbar (200) according to any one of claims 1-7, characterized in that, The conductive connecting row (200) comprises multiple foil layers (240), and the multiple foil layers (240) are sequentially stacked along the thickness direction to form the deformation portion (230).

9. The electrically conductive busbar (200) according to claim 8, characterized in that The foil layer (240) is an aluminum foil layer.

10. The electrically conductive busbar (200) according to any one of claims 1-7, characterized in that, The first connecting portion (210) comprises a first connecting side plate (211) and a second connecting side plate (212); The first connecting side plate (211) is connected between the second connecting side plate (212) and the deformation portion (230); The second connecting side plate (212) is arranged at an angle with the first connecting side plate (211), and the second connecting side plate (212) is used for electrode connection with the cell (100).

11. An end plate assembly characterized by, Comprise: The mounting plate (400) and the electrically conductive connecting strip (200) according to any one of claims 1-10, the mounting plate (400) is adapted to be arranged on the end surface of the battery cell (100) along the thickness direction of the battery cell (100). The electrically conductive connecting strip (200) is arranged on the mounting plate (400).

12. The end plate assembly of claim 11, wherein, The mounting plate (400) is provided with a clamping structure (420), and the clamping structure (420) is clamped and matched with the electrically conductive connecting strip (200).

13. The end plate assembly of claim 11, wherein, The side of the mounting plate (400) facing the electrically conductive connecting strip (200) is provided with a plurality of reinforcing ribs (430).

14. The end plate assembly of claim 13, wherein, The plurality of reinforcing ribs (430) are connected to each other to form a honeycomb shape.

15. An end plate assembly according to any one of claims 11-14, characterized in that The mounting plate (400) is provided with a mounting groove (410), and the electrically conductive connecting strip (200) is embedded in the mounting groove (410).

16. The end plate assembly of any one of claims 11-14, wherein, The mounting plate (400) is provided with a clamping groove (440), and the clamping groove (440) penetrates the mounting plate (400) along a first direction, and the clamping groove (440) is used for clamping a wire harness of the battery (10).

17. A battery (10) characterized by The battery (10) comprises a plurality of battery cells (100) arranged along the thickness direction of the battery cells (100), and the electrically conductive connecting strip (200) according to any one of claims 1-10 or the end plate assembly according to any one of claims 11-16, and the deformation part (230) is arranged on the end surface of the battery cell (100) along the thickness direction of the battery cell (100).

18. The battery (10) according to claim 17, characterized in that, The battery cell (100) comprises a first end and a second end opposite to each other along the first direction, and the first end and the second end are respectively provided with a first electrode (100a) and a second electrode (100b) with opposite polarities, the first electrode (100a) and the second electrode (100b) of the battery cells (100) at the same end are sequentially connected in series, and the battery cells (100) comprise a first-end battery cell (100A) and a last-end battery cell (100B). The electrically conductive connecting strip (200) is two, wherein the first connecting part (210) and the second connecting part (220) of one of the electrically conductive connecting strips (200) are respectively connected with the first electrode (100a) at the two ends of the first-end battery cell (100A), and the first connecting part (210) and the second connecting part (220) of the other electrically conductive connecting strip (200) are respectively connected with the second electrode (100b) at the two ends of the last-end battery cell (100B).

19. The battery (10) of claim 17, characterized in that Further comprising: An aerogel layer, the electrically conductive connecting strip (200) is arranged on the side of the mounting plate (400) away from the battery cell (100), and the aerogel layer is arranged between the battery cell (100) and the mounting plate (400).

20. The battery (10) of claim 18, characterized in that Further comprising: A connecting piece (700), a plurality of connecting pieces (700) are arranged at the two ends of the battery cells (100) along the first direction, and the first electrode (100a) and the second electrode (100b) of adjacent two battery cells (100) at the same end are electrically connected through the connecting piece (700).

21. An electrical device (800), characterized by The battery (10) according to any one of claims 17-20.

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