Battery and electric device

Abstract

The invention provides a battery and a power utilization device, and belongs to the technical field of batteries. The battery comprises a box body, a plurality of battery monomer groups, a heat management part and a protection part, the box body is provided with a first wall in the first direction. The plurality of battery monomer groups are accommodated in the box body, the plurality of battery monomer groups are arranged along a second direction, each battery monomer group comprises at least one battery monomer, and the second direction intersects with the first direction. In the second direction, a heat management part is arranged between every two adjacent battery monomer groups, and the heat management parts are configured to exchange heat with the battery monomers. The protection part is arranged between the first wall and the plurality of battery monomer groups along the first direction and is used for transmitting external force borne by the first wall to the battery monomer groups so as to protect the heat management part, so that the influence of collision force generated on the first wall on the heat management part can be reduced; therefore, risks of liquid leakage and the like of the heat management component in the use process are reduced, and the use reliability and the service life of the battery are improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery and an electrical device. Background Art

[0002] In recent years, new energy vehicles have experienced rapid development. In the field of electric vehicles, power batteries play an irreplaceable and important role as the power source of electric vehicles. The battery consists of a housing and multiple battery cells contained within the housing. As a core component of new energy vehicles, batteries have high requirements in terms of both reliability and service life. Among them, the battery cells in the battery generate a large amount of heat during the continuous charging and discharging process. Therefore, a thermal management system is installed in the housing to regulate the temperature of the battery cells to alleviate the temperature rise inside the battery. However, the existing battery thermal management system is prone to damage during use, which may cause the battery to leak, thereby hindering the reliability and service life of the battery. Summary of the Invention

[0003] The embodiments of the present application provide a battery and an electrical device that can effectively improve the reliability and service life of the battery.

[0004] In the first aspect, an embodiment of the present application provides a battery, comprising a case, a plurality of battery cell groups, a thermal management component and a protective member; the case has a first wall in a first direction; a plurality of the battery cell groups are accommodated in the case, and the plurality of the battery cell groups are arranged along a second direction, the battery cell group including at least one battery cell, and the second direction intersects with the first direction; along the second direction, the thermal management component is arranged between two adjacent battery cell groups, and the thermal management component is configured to exchange heat with the battery cell; the protective member is arranged between the first wall and the plurality of the battery cell groups along the first direction, and the protective member is used to transfer external force exerted on the first wall to the battery cell group to protect the thermal management component.

[0005] In the above technical solution, a protective member is provided between the first wall of the box and a plurality of battery cell groups, and the protective member is used to transfer the external force exerted on the first wall to the battery cell group, so that when the battery collides and causes the first wall to be deformed or damaged, the collision force transmitted from the first wall to the inside of the battery can be distributed to a plurality of battery cell groups through the protective member, so that the protective member can play a certain protective role on the thermal management component, thereby reducing the impact of the collision force generated on the first wall on the thermal management component, and alleviating the phenomenon that the thermal management component is deformed or damaged due to collision or impact, thereby effectively reducing the risk of leakage of the thermal management component during use, which is beneficial to improving the reliability and service life of the battery.

[0006] In some embodiments, along the first direction, the protective member abuts against the plurality of battery cell groups, a side of the protective member facing the battery cell group is provided with an avoidance groove, and one end of the thermal management component is provided in the avoidance groove.

[0007] In the above technical solution, the protective member is arranged to be in a structure that abuts against multiple battery cell groups along a first direction, and an avoidance groove for inserting a heat management component is provided on the side of the protective member facing the battery cell group, so that the external impact force exerted on the first wall can be directly distributed to the multiple battery cell groups through the protective member, thereby playing a protective role on the heat management component through the avoidance groove, reducing the phenomenon that the heat management component is subjected to external force impact, and making it convenient for the protective member to transmit and distribute the external force exerted on the first wall to the multiple battery cell groups, thereby realizing the protective role of the protective member on the heat management component.

[0008] In some embodiments, the protective member includes a main body and multiple abutment portions; the main body is arranged between the first wall and the multiple battery cell groups along the first direction; the multiple abutment portions are arranged at intervals along the second direction on the side of the main body facing the battery cell group, each of the abutment portions abuts against one of the battery cell groups along the first direction, and the avoidance groove is formed between each two adjacent abutment portions.

[0009] In the above technical solution, the protective member includes a main body and a plurality of abutment portions arranged along a first direction on a side of the main body facing the battery cell group, and the plurality of abutment portions are arranged at intervals along a second direction, so that an avoidance groove for inserting the heat management component can be formed between each two adjacent abutment portions, and each abutment portion corresponds to abutting against a battery cell group, so that when the battery collides, the external impact force exerted on the first wall can be distributed to multiple battery cell groups through the plurality of abutment portions. The structure is simple, easy to assemble, and can provide better protection for the heat management component.

[0010] In some embodiments, along the first direction, the thermal management component is spaced apart from the main body.

[0011] In the above technical solution, the thermal management component is arranged to have a structure with a gap between it and the main body of the protective element in the first direction, so that the thermal management component and the bottom surface of the avoidance groove are not in contact in the first direction, thereby reducing the phenomenon of the protective element transferring stress to the thermal management component along the first direction when the first wall is collided, and forming a buffer space between the main body and the thermal management component. Even if the main body of the protective element is deformed, the squeezing of the thermal management component by the main body can be reduced, which is conducive to further enhancing the protective effect of the protective element on the thermal management component.

[0012] In some embodiments, the abutting portion is adhered to the corresponding battery cell group.

[0013] In the above technical solution, by setting the abutting portion and the corresponding battery cell group as a mutually bonded structure, the effect of the abutting portion abutting on the battery cell group can be further improved, and the protective part and the battery cell group can be formed into a whole, which is convenient for assembly on the one hand, and can improve the effect of the abutting portion in transmitting the impact force exerted on the first wall to the battery cell group on the other hand.

[0014] In some embodiments, the battery includes a plurality of the thermal management components arranged at intervals along the second direction; the battery also includes a delivery pipe, the delivery pipe is arranged between the first wall and the plurality of battery cell groups along the first direction, the delivery pipe extends along the second direction, the delivery pipe is connected to the plurality of the thermal management components, and the delivery pipe is configured to provide heat exchange medium to the thermal management components; wherein, the abutting portion includes a first part, along the first direction, the first part has a first surface abutting against the battery cell group, the first surface is provided with a receiving groove, the receiving groove passes through the side surfaces of the first part on both sides opposite to each other in the second direction along the second direction, and the delivery pipe is received in the receiving groove.

[0015] In the above technical solution, the battery is further provided with a delivery pipe for delivering a heat exchange medium to the thermal management component, and the delivery pipe is structured to extend along the second direction, thereby facilitating communication between the delivery pipe and a plurality of thermal management components spaced apart along the second direction. Specifically, by providing a receiving groove in the first portion of the plurality of abutting portions abutting against the first surface of the battery cell group, and the receiving groove extending along the second direction through the side surfaces of the first portion of the abutting portions on opposite sides thereof, the delivery pipe can be received within the receiving groove in the first portion of the plurality of abutting portions. Thus, the protective member can provide a certain degree of protection for the delivery pipe, allowing external impact forces applied to the first wall to be distributed to the plurality of battery cell groups through the plurality of abutting portions of the protective member, thereby reducing the impact of the impact forces generated on the first wall on the delivery pipe. This effectively mitigates deformation or damage to the delivery pipe caused by collisions or impacts, thereby reducing the risk of leakage during use of the delivery pipe, and thereby improving the reliability and service life of the battery. Furthermore, the delivery pipe and the first portion can share a portion of space in the first direction, thereby improving the internal space utilization of the battery.

[0016] In some embodiments, along the first direction, a depth of the accommodating groove is greater than an outer diameter of the conveying tube.

[0017] In the above technical solution, by setting the groove depth of the accommodating groove in the first direction to be greater than the outer diameter of the conveying tube, after the abutting portion abuts against the battery cell group along the first direction, the distance between the groove bottom surface of the accommodating groove and the battery cell group in the first direction is greater than the outer diameter of the conveying tube, so that the conveying tube and the groove bottom surface of the accommodating groove and at least one of the conveying tube and the battery cell group are all clearance-fit structures in the first direction, thereby alleviating the phenomenon of hard contact or hard collision between the conveying tube and the protective member, so that when the first wall is collided, the phenomenon of the protective member transferring stress to the conveying tube along the first direction can be reduced, and a buffer space can be formed between the groove bottom surface of the accommodating groove and the conveying tube, so that even if the abutting portion is deformed, the squeezing of the conveying tube by the abutting portion can be reduced, which is conducive to further enhancing the protective effect of the protective member on the conveying tube.

[0018] In some embodiments, the first surface is connected to the side surface of the accommodating groove through an arc surface.

[0019] In the above technical solution, by setting the first surface of the first part and the groove side of the accommodating groove to be connected by an arc surface, the groove side of the accommodating groove and the first surface of the first part are an arc transition structure. On the one hand, the phenomenon of sharp angles formed between the first surface and the groove side of the accommodating groove can be reduced, so as to reduce the risk of the first part puncturing the battery cell. On the other hand, the first part of the abutting part can better transfer the external impact force exerted on the first wall to the battery cell group, so as to reduce the stress concentration phenomenon.

[0020] In some embodiments, the abutting portion also includes a second part; the second part is connected to one side of the first part in the third direction, the second part extends along the third direction in a direction away from the first part, and the second part abuts against the battery cell group along the first direction, the first direction, the second direction and the third direction are not coplanar and intersect with each other.

[0021] In the above technical solution, the abutting portion is further provided with a second portion connected to one side of the first portion in the third direction, and the second portion extends along the third direction and abuts against the battery cell group along the first direction, so that the first portion and the second portion of the abutting portion are both structures abutting against the battery cell group, which is beneficial to increase the contact area between the abutting portion and the battery cell group, so as to increase the force-bearing area of the battery cell group, and further when the abutting portion transfers the external impact force exerted on the first wall to the battery cell group, it can alleviate the phenomenon of excessive force concentration on the battery cell group, so as to reduce the risk of the battery cells of the battery cell group being crushed.

[0022] In some embodiments, the plurality of abutting portions include a first abutting portion, the first abutting portion further includes a third portion, the third portion is connected to a side of the first portion that faces away from the second portion in the third direction, the third portion extends along the third direction away from the first portion, and the third portion abuts against the battery cell group along the first direction.

[0023] In the above technical solution, the multiple abutting parts also include a first abutting part, and the first abutting part is further provided with a third part connected to the side of the first part away from the second part in the third direction. The third part extends along the third direction and abuts on the battery cell group along the first direction, so that the first part, the second part and the third part of the first abutting part are all structures abutting on the battery cell group, which is beneficial to further increase the contact area between the first abutting part and the battery cell group, so as to further increase the force-bearing area of the corresponding battery cell group, and then when the first abutting part transfers the external impact force exerted on the first wall to the corresponding battery cell group, it can alleviate the phenomenon of excessive force concentration on the battery cell group, so as to reduce the risk of the battery cells of the battery cell group being crushed.

[0024] In some embodiments, the protective element further includes a reinforcement portion; the reinforcement portion connects the third portions of at least two of the first abutting portions.

[0025] In the above technical solution, the protective member is also provided with a reinforcement portion, and the reinforcement portion connects the third part of at least two first abutting portions. On the one hand, it can improve the structural strength and structural stability of the first abutting portions arranged at intervals along the second direction. On the other hand, the reinforcement portion can identify the installation direction of the protective member in the third direction to play the role of error-proof design, which is conducive to reducing assembly errors of the protective member when it is assembled into the box.

[0026] In some embodiments, along the third direction, the reinforcement portion is connected to an end of the third portion away from the first portion.

[0027] In the above technical solution, by arranging the reinforcement part at one end of the third part away from the first part in the third direction, on the one hand, the interference between the reinforcement part and the thermal management component arranged in the avoidance groove can be reduced, so as to reduce the phenomenon of the reinforcement part squeezing or damaging the thermal management component. On the other hand, it is convenient to assemble the protective part between the first wall and multiple battery cell groups, which is conducive to reducing the difficulty of assembling the protective part.

[0028] In some embodiments, the box body includes a box body and a box cover; a accommodating cavity with an opening is formed inside the box body, and the accommodating cavity is used to accommodate multiple battery cell groups, the opening is arranged on one side of the box body in the third direction, and the box body has the first wall in the first direction; the box cover covers the opening; wherein, along the third direction, the third part is connected to the side of the first part facing the box cover.

[0029] In the above technical solution, the box body is provided with a box body and a box cover, the box body is formed with an opening on one side in the third direction, and the box cover is covered on the opening of the box body to accommodate multiple battery cell groups, wherein, by arranging the third part of the first abutting portion on the side of the first part of the first abutting portion facing the box cover in the third direction, the reinforcing portion is a structure located on the side of the first part facing the box cover in the third direction, thereby facilitating the assembly of the protective member between the first wall and the multiple battery cell groups along the third direction, which is beneficial to reducing the difficulty of assembling the protective member, and on the other hand, facilitating direct observation of the reinforcing portion from the opening of the box body, so as to facilitate identification of the installation direction of the protective member in the third direction.

[0030] In some embodiments, the battery further includes a main pipe and a plurality of connecting pipes; the main pipe is arranged between the first wall and the plurality of battery cell groups along the first direction, and the main pipe extends along the second direction; the plurality of connecting pipes are arranged at intervals along the second direction, and the connecting pipes connect the main pipe and the delivery pipe, and the main pipe is configured to provide the heat exchange medium to the delivery pipe.

[0031] In the above technical solution, the battery is further provided with a main pipe and a plurality of connecting pipes. The main pipe is a structure extending along the second direction, and the plurality of connecting pipes are structures arranged at intervals on the main pipe along the second direction, so that the main pipe is a structure connected to the delivery pipe through the plurality of connecting pipes at intervals, so that the main pipe can form a plurality of delivery points for providing heat exchange medium on the delivery pipe through the plurality of connecting pipes, which is beneficial to improving the balance of the flow rate and pressure of the heat exchange medium at various positions in the second direction in the delivery pipe, and thus making the flow rate and pressure of the heat exchange medium provided by the delivery pipe to the plurality of thermal management components more balanced, so that the heat exchange capacity between the plurality of thermal management components is close, which is beneficial to alleviating the phenomenon of local temperature rise of the plurality of battery cell groups in the battery.

[0032] In some embodiments, along the third direction, the main pipe is located on one side of the first portion, and the first direction, the second direction, and the third direction are not coplanar and intersect with each other.

[0033] In the above technical solution, by arranging the main pipeline on one side of the first part in the third direction, on the one hand, it is convenient to assemble the main pipeline, which is beneficial to reducing the difficulty of assembling the main pipeline, and enables the main pipeline and the first part to share part of the space in the first direction, which is beneficial to improving the internal space utilization of the battery. On the other hand, it can realize the mutual separation between the delivery pipe and the main pipeline, which is beneficial to reducing the interference and extrusion between the main pipeline and the delivery pipe.

[0034] In some embodiments, the plurality of abutting portions include a first abutting portion, the first abutting portion further includes a third portion, the third portion is connected to the side of the first portion facing the main pipe in the third direction, the third portion extends along the third direction in a direction away from the first portion, and the third portion abuts against the battery cell group along the first direction; wherein, along the first direction, the main pipe is located between the first wall and the third portion.

[0035] In the above technical solution, the multiple abutting parts also include a first abutting part, and the first abutting part is also provided with a third part connected to the side of the first part facing the main pipe in the third direction. The third part extends along the third direction and abuts on the battery cell group along the first direction. By arranging the main pipe between the first wall and the third part in the first direction, the protective part can also play a certain protective role on the main pipe, so that the external impact force exerted on the first wall can be directly distributed to the multiple battery cell groups through the multiple abutting parts of the protective part, thereby reducing the impact of the collision force generated on the first wall on the main pipe, so as to alleviate the deformation or damage of the main pipe caused by collision or impact, and thus effectively reduce the risk of leakage of the main pipe during use, which is beneficial to improving the reliability and service life of the battery.

[0036] In some embodiments, along the first direction, a minimum distance between the first wall and the third portion is greater than an outer diameter of the main pipe.

[0037] In the above technical solution, by setting the minimum distance between the first wall and the third part in the first direction to be greater than the outer diameter of the main pipe, the main pipe and the first wall, as well as at least one of the main pipe and the third part, are all clearance-fitted structures in the first direction, thereby alleviating the phenomenon of hard contact or hard collision between the main pipe and the first wall, so that when the first wall is collided, the phenomenon of the protective part transferring stress to the main pipe along the first direction can be reduced, and a buffer space can be formed between the first wall and the main pipe. Even if the first wall is deformed, the squeezing of the main pipe by the first wall can be reduced, which is conducive to further enhancing the protective effect of the protective part on the main pipe.

[0038] In some embodiments, the plurality of abutting portions further include a second abutting portion, and along the third direction, the accommodating groove of the second abutting portion passes through the first part of the second abutting portion facing the side of the main pipe, and the second abutting portion corresponds one-to-one with the connecting pipe, and the connecting pipe is arranged in the accommodating groove of the second abutting portion.

[0039] In the above technical solution, the abutment portion corresponding to the position of the connecting pipe among the multiple abutment portions is the second abutment portion, and the accommodating groove of the second abutment portion passes through the side of the first part facing the main pipe along the third direction, so that the connecting pipe can be arranged in the accommodating groove along the third direction and connect the delivery pipe and the main pipe. On the one hand, it is beneficial to reduce the difficulty of the connecting pipe connecting the delivery pipe and the main pipe, so as to reduce the difficulty of assembling the battery. On the other hand, the connecting pipe is a structure accommodated in the accommodating groove, so that the protective part can also play a certain protective role on the connecting pipe, so that the external impact force exerted on the first wall can be directly distributed to the multiple battery cell groups through the multiple abutment portions of the protective part, thereby reducing the impact of the collision force generated on the first wall on the connecting pipe, so as to alleviate the phenomenon that the connecting pipe is deformed or damaged due to collision or impact, and thus can effectively reduce the risk of leakage of the connecting pipe during use, which is beneficial to improving the reliability and service life of the battery.

[0040] In some embodiments, along the first direction, the protective element is spaced apart from the first wall.

[0041] In the above technical solution, the protective member and the first wall of the box are arranged to be spaced apart along the first direction, so that the protective member and the first wall are in a clearance-fitting structure. On the one hand, it is convenient to assemble the protective member between the first wall and multiple battery cell groups, which is beneficial to reduce the difficulty of assembling the protective member. On the other hand, a certain buffer space can be formed between the first wall and the protective member to reduce the phenomenon that the stress of the first wall acts on the battery cell group through the protective member.

[0042] In some embodiments, the battery further includes a delivery tube; the delivery tube is arranged between the first wall and the plurality of battery cell groups along the first direction, the delivery tube extends along the second direction, and the delivery tube is connected to the thermal management component, and the delivery tube is configured to provide a heat exchange medium to the thermal management component; wherein, the protective member is provided with an assembly groove on the side facing the battery cell group in the first direction, and the assembly groove penetrates the protective member along the second direction, and the delivery tube is accommodated in the assembly groove.

[0043] In the above technical solution, the battery is also provided with a delivery pipe for delivering heat exchange medium to the thermal management component, and the delivery pipe is a structure extending along the second direction, so that the delivery pipe and the thermal management component are connected to each other, wherein, by providing an assembly groove on the side of the protective member facing the battery cell group along the first direction, and the assembly groove is a structure that penetrates the protective member along the second direction, so that the delivery pipe can be accommodated in the assembly groove of the protective member, on the one hand, the protective member can play a certain protective role on the delivery pipe, so that the external impact force exerted on the first wall can be directly distributed to multiple battery cell groups through the protective member, so as to reduce the impact of the collision force generated on the first wall on the delivery pipe, and thus can effectively alleviate the phenomenon of deformation or damage of the delivery pipe due to collision or impact, so as to reduce the risk of leakage of the delivery pipe during use, which is beneficial to improving the reliability and service life of the battery, and on the other hand, the delivery pipe and the protective member can share part of the space in the first direction, which is beneficial to improving the internal space utilization of the battery.

[0044] In some embodiments, along the first direction, the box has two opposite first walls, and the multiple battery cell groups are located between the two first walls; wherein the battery includes two protective members, the two protective members are arranged opposite to each other along the first direction, and the two protective members are respectively located between the two first walls and the multiple battery cell groups.

[0045] In the above technical solution, the box body has two first walls arranged opposite to each other in the first direction, and the two first walls are respectively located on both sides of the multiple battery cell groups in the first direction, and a protective member is provided between each first wall and the multiple battery cell groups, so that the two protective members can protect both ends of the thermal management component in the first direction, which is conducive to further improving the protective effect of the thermal management component, thereby reducing the phenomenon that the collision force generated on the two first walls on both sides of the box body in the first direction directly acts on the thermal management component, so as to further alleviate the deformation or damage of the thermal management component due to collision or impact, and further reduce the risk of leakage of the thermal management component during use, so as to further improve the reliability and service life of the battery.

[0046] In a second aspect, an embodiment of the present application further provides an electrical device comprising the above-mentioned battery, wherein the battery is used to provide electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0048] Figure 1 A schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0049] Figure 2 A schematic diagram of the structure of a battery provided in some embodiments of the present application;

[0050] Figure 3 An exploded view of the structure of a battery provided in some embodiments of the present application;

[0051] Figure 4 for Figure 3 A partial enlarged view of the battery shown at A;

[0052] Figure 5 A schematic diagram of the assembly of a battery protective member and a battery cell group provided in some embodiments of the present application;

[0053] Figure 6 A schematic diagram of the partial assembly of a battery protective member and a battery cell group provided in some embodiments of the present application;

[0054] Figure 7 A schematic structural diagram of a battery protective member provided in some embodiments of the present application;

[0055] Figure 8 for Figure 7 A partial enlarged view of position B of the protective member shown;

[0056] Figure 9 A partial cross-sectional view of a battery provided in some embodiments of the present application;

[0057] Figure 10 Schematic diagram of the assembly of the delivery pipe and the thermal management component provided in some embodiments of the present application;

[0058] Figure 11 A schematic diagram of the assembly of a protective member and a delivery pipe provided in some embodiments of the present application;

[0059] Figure 12 A front view of a battery protection member provided in some embodiments of the present application in a second direction;

[0060] Figure 13 A cross-sectional view of a first abutting portion of a protective member provided in some embodiments of the present application;

[0061] Figure 14 A cross-sectional view of a second abutment portion of a protective member provided in some embodiments of the present application.

[0062] Icons: 1000-vehicle; 100-battery; 10-box; 11-box body; 111-opening; 112-accommodation chamber; 113-bottom wall; 114-first wall; 115-second wall; 12-box cover; 20-battery cell group; 21-battery cell; 30-thermal management component; 40-protective member; 41-avoidance groove; 42-body; 43-abutment portion; 431-first portion; 4311-first surface; 4312-accommodation groove; 43 12a-side surface of the accommodating groove; 4313-arc surface; 432-second portion; 4321-second surface; 433-first abutting portion; 4331-third portion; 4331a-third surface; 434-second abutting portion; 44-assembly groove; 45-reinforcement portion; 50-adhesive; 60-delivery pipe; 70-main pipe; 80-connecting pipe; 200-controller; 300-motor; X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0063] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0064] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0065] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments.

[0066] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0067] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0068] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0069] The term "plurality" used in this application refers to two or more (including two).

[0070] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0071] The battery cells can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-hydrogen batteries, nickel-cadmium batteries, lead-acid batteries, etc., which are not limited in the embodiments of the present application.

[0072] A battery cell typically includes an electrode assembly. This assembly includes a positive electrode, a negative electrode, and a separator. During the charge and discharge process of a battery cell, active ions (such as lithium ions) are inserted and removed between the positive and negative electrodes. The separator, placed between the positive and negative electrodes, prevents short circuits between the positive and negative electrodes while allowing the active ions to pass through.

[0073] In some embodiments, the positive electrode may be a positive electrode sheet, which may include a positive electrode current collector and a positive electrode active material disposed on at least one surface of the positive electrode current collector.

[0074] As an example, the positive electrode current collector has two surfaces facing each other in its thickness direction, and the positive electrode active material is provided on either or both of the two facing surfaces of the positive electrode current collector.

[0075] As an example, the positive electrode current collector may be a metal foil or a composite current collector. For example, as the metal foil, aluminum with a silver-plated surface, stainless steel with a silver-plated surface, stainless steel, copper, aluminum, nickel, carbon electrode, carbon, nickel or titanium, etc. may be used. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0076] As an example, the positive electrode active material may include at least one of the following materials: lithium-containing phosphates, lithium transition metal oxides and their respective modified compounds. However, the present application is not limited to these materials, and other traditional materials that can be used as battery positive electrode active materials may also be used. These positive electrode active materials may be used alone or in combination of two or more. Among them, examples of lithium-containing phosphates may include but are not limited to at least one of lithium iron phosphate (such as LiFePO4 (also referred to as LFP)), a composite material of lithium iron phosphate and carbon, lithium manganese phosphate (such as LiMnPO4), a composite material of lithium manganese phosphate and carbon, lithium iron manganese phosphate, and a composite material of lithium iron manganese phosphate and carbon. Examples of lithium transition metal oxides may include but are not limited to lithium cobalt oxide (such as LiCoO2), lithium nickel oxide (such as LiNiO2), lithium manganese oxide (such as LiMnO2, LiMn2O4), lithium nickel cobalt oxide, lithium manganese cobalt oxide, lithium nickel manganese oxide, lithium nickel cobalt manganese oxide (such as LiNi 1 / 3 Co 1 / 3 Mn 1 / 3 O2 (also referred to as NCM 333 ), LiNi 0.5 Co 0.2 Mn 0.3 O2 (also referred to as NCM 523 ), LiNi 0.5 Co 0.25 Mn 0.25 O2 (also referred to as NCM 211 ), LiNi 0.6 Co 0.2 Mn 0.2 O2 (also referred to as NCM 622 ), LiNi 0.8 Co 0.1 Mn 0.1 O2 (also referred to as NCM 811 ), lithium nickel cobalt aluminum oxide (such as LiNi 0.85 Co 0.15 Al 0.05O2) and at least one of its modified compounds, etc.

[0077] In some embodiments, a positive electrode may utilize a metal foam. The metal foam may include nickel foam, copper foam, aluminum foam, alloy foam, or the like. When a metal foam is used as the positive electrode, the surface of the metal foam may or may not include a positive electrode active material. For example, a lithium source material, potassium metal, or sodium metal may be filled or / and deposited within the metal foam, where the lithium source material is lithium metal and / or a lithium-rich material.

[0078] In some embodiments, the negative electrode may be a negative electrode sheet, and the negative electrode sheet may include a negative electrode current collector.

[0079] As an example, the negative electrode current collector may be a metal foil, a metal foam, or a composite current collector. For example, as the metal foil, aluminum or stainless steel treated with silver, stainless steel, copper, aluminum, nickel, carbon electrode, nickel, or titanium, etc. may be used. The metal foam may be nickel foam, copper foam, aluminum foam, alloy foam, etc. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector may be formed by forming a metal material (copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0080] As an example, the negative electrode sheet may include a negative electrode current collector and a negative electrode active material disposed on at least one surface of the negative electrode current collector.

[0081] As an example, the negative electrode current collector has two surfaces facing each other in its thickness direction, and the negative electrode active material is provided on either or both of the two facing surfaces of the negative electrode current collector.

[0082] As an example, the negative electrode active material may adopt the negative electrode active material for battery cells that is well known in the art. As an example, the negative electrode active material may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, lithium titanate, etc. The silicon-based material may be selected from at least one of elemental silicon, silicon oxide compounds, silicon-carbon composites, silicon-nitrogen composites, and silicon alloys. The tin-based material may be selected from at least one of elemental tin, tin oxide compounds, and tin alloys. However, the present application is not limited to these materials, and other traditional materials that can be used as negative electrode active materials for batteries may also be used. These negative electrode active materials may be used alone or in combination of two or more.

[0083] In some embodiments, the material of the positive electrode current collector may be aluminum, and the material of the negative electrode current collector may be copper.

[0084] In some embodiments, the electrode assembly further includes a separator disposed between the positive electrode and the negative electrode.

[0085] In some embodiments, the separator is a separator membrane. There are many types of separator membranes, and any known separator membrane with a porous structure having good chemical stability and mechanical stability can be selected.

[0086] As an example, the separator can be made of at least one of fiberglass, non-woven fabric, polyethylene, polypropylene, and polyvinylidene fluoride. The separator can be a single-layer film or a multi-layer composite film. In the case of a multi-layer composite film, the materials of each layer can be the same or different. The separator can be a separate component positioned between the positive and negative electrodes, or it can be attached to the surfaces of the positive and negative electrodes.

[0087] In some embodiments, the separator is a solid electrolyte, which is disposed between the positive electrode and the negative electrode and serves to transport ions and isolate the positive and negative electrodes.

[0088] In some embodiments, the battery cell further includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. The electrolyte can be liquid, gel, or solid. Liquid electrolytes include an electrolyte salt and a solvent.

[0089] In some embodiments, the electrolyte salt may include at least one of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium perchlorate, lithium hexafluoroarsenate, lithium bisfluorosulfonyl imide, lithium bistrifluoromethanesulfonyl imide, lithium trifluoromethanesulfonate, lithium difluorophosphate, lithium difluorooxalatoborate, lithium bisoxalatoborate, lithium difluorodioxalatophosphate, and lithium tetrafluorooxalatophosphate.

[0090] In some embodiments, the solvent may include at least one of ethylene carbonate, propylene carbonate, ethyl methyl carbonate, diethyl carbonate, dimethyl carbonate, dipropyl carbonate, methylpropyl carbonate, ethylpropyl carbonate, butylene carbonate, fluoroethylene carbonate, methyl formate, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate, propyl propionate, methyl butyrate, ethyl butyrate, 1,4-butyrolactone, cyclopentane, dimethyl sulfone, methyl ethyl sulfone and diethyl sulfone. The solvent may also be an ether solvent. The ether solvent may include one or more of ethylene glycol dimethyl ether, ethylene glycol diethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, 1,3-dioxolane, tetrahydrofuran, methyltetrahydrofuran, diphenyl ether and crown ether.

[0091] Among them, the gel electrolyte includes a skeleton network with a polymer as the electrolyte, combined with an ionic liquid-lithium salt.

[0092] Among them, solid electrolytes include polymer solid electrolytes, inorganic solid electrolytes, and composite solid electrolytes.

[0093] As an example, the polymer solid electrolyte may be polyether (polyethylene oxide), polysiloxane, polycarbonate, polyacrylonitrile, polyvinylidene fluoride, polymethyl methacrylate, a single ion polymer, polyionic liquid-lithium salt, cellulose, or the like.

[0094] As an example, the inorganic solid electrolyte may include an oxide solid electrolyte (crystalline perovskite, sodium superconducting ion conductor, garnet, amorphous LiPON film), a sulfide solid electrolyte (crystalline lithium superion conductor (lithium germanium phosphosulfide, silver germanium sulfide), amorphous sulfide) and one or more of a halide solid electrolyte, a nitride solid electrolyte and a hydride solid electrolyte.

[0095] As an example, a composite solid electrolyte is formed by adding an inorganic solid electrolyte filler to a polymer solid electrolyte.

[0096] In some embodiments, the electrode assembly is a wound structure, wherein the positive electrode sheet and the negative electrode sheet are wound into the wound structure.

[0097] In some embodiments, the electrode assembly is a laminate structure.

[0098] As an example, multiple positive electrode sheets and multiple negative electrode sheets can be provided respectively, and the multiple positive electrode sheets and the multiple negative electrode sheets can be alternately stacked.

[0099] As an example, a plurality of positive electrode sheets may be provided, and the negative electrode sheet may be folded to form a plurality of stacked folded segments, with a positive electrode sheet being sandwiched between adjacent folded segments.

[0100] As an example, both the positive electrode sheet and the negative electrode sheet are folded to form a plurality of stacked folded segments.

[0101] As an example, a plurality of separators may be provided, each of which is disposed between any adjacent positive electrode sheets or negative electrode sheets.

[0102] As an example, the separator may be provided continuously, and may be provided between any adjacent positive electrode sheets or negative electrode sheets by folding or winding.

[0103] In some embodiments, the shape of the electrode assembly can be cylindrical, flat, or polygonal.

[0104] In some embodiments, the electrode assembly is provided with tabs that can conduct current from the electrode assembly. The tabs include a positive tab and a negative tab.

[0105] In some embodiments, a battery cell may include a housing. The housing is used to encapsulate components such as the electrode assembly and the electrolyte. The housing may be a steel housing, an aluminum housing, a plastic housing (e.g., polypropylene), a composite metal housing (e.g., a copper-aluminum composite housing), or an aluminum-plastic film.

[0106] As an example, the battery cells may be cylindrical, prismatic, soft-pack or other shaped battery cells. Prismatic battery cells include but are not limited to square-shell, blade-shaped, and polygonal batteries, such as hexagonal batteries.

[0107] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.

[0108] In some embodiments, the battery may be a battery module. When there are multiple battery cells, the multiple battery cells are arranged and fixed to form a battery module.

[0109] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are housed in the case.

[0110] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0111] In some embodiments, the battery may be an energy storage device, including an energy storage container, an energy storage cabinet, and the like.

[0112] Batteries, with their outstanding advantages such as high energy density, low environmental pollution, high power density, long service life, wide adaptability, and low self-discharge coefficient, are a vital component of today's new energy development. The development of battery technology requires simultaneous consideration of multiple design factors, including performance parameters such as energy density, cycle life, discharge capacity, and charge / discharge rate. Furthermore, battery safety must be considered.

[0113] In battery technology, a battery usually includes a casing and a plurality of battery cells arranged in the casing. In order to improve the energy density of the battery, the plurality of battery cells are arranged in an array structure and accommodated in the casing. However, the battery cells in the casing will generate a large amount of heat during the continuous charging and discharging process, which will cause a greater risk of battery use, and excessively high temperature will affect the performance of the battery. Therefore, in related technologies, a thermal management system for managing the temperature of the battery cells is usually provided in the battery casing. The thermal management system usually includes a delivery pipe and a plurality of thermal management components. The plurality of thermal management components are arranged at intervals in the casing, and a thermal management component is provided between two adjacent rows of battery cells. The delivery pipe is located on one side of the plurality of battery cells, and the delivery pipe is connected to the plurality of thermal management components, so that the delivery pipe can provide a heat exchange medium for the thermal management component, so that the thermal management component can exchange heat with the battery cells, thereby adjusting the temperature of the battery cells accommodated in the casing to alleviate the phenomenon of excessively high internal temperature of the battery during use. However, in batteries of this structure, due to the complex operating environment of the batteries, the batteries are prone to collision or bumping with the external environment during use. When a collision occurs, the force applied to the battery will directly act on the thermal management components and the delivery pipe through the casing, which may easily cause deformation or damage to the thermal management components and the delivery pipe. In particular, when the area of the casing that is affected by the collision is deformed or collapsed, the deformed or collapsed area of the casing will directly squeeze the thermal management components and the delivery pipe, causing the thermal management components and the delivery pipe to rupture or break, thereby causing the battery's thermal management system to be at risk of leakage during use, which is not conducive to improving the reliability and service life of the battery.

[0114] Based on the above considerations, in order to solve the problems of low reliability and short service life of batteries, an embodiment of the present application provides a battery, which includes a casing, a plurality of battery cell groups, a thermal management component and a protective member. The casing has a first wall in the first direction. The plurality of battery cell groups are accommodated in the casing, and the plurality of battery cell groups are arranged along the second direction. The battery cell group includes at least one battery cell, and the second direction intersects with the first direction. Along the second direction, a thermal management component is provided between two adjacent battery cell groups, and the thermal management component is configured to exchange heat with the battery cell. The protective member is provided between the first wall and the plurality of battery cell groups along the first direction, and the protective member is used to transfer the external force exerted on the first wall to the battery cell group to protect the thermal management component.

[0115] In a battery of this structure, a protective member is provided between the first wall of the box and a plurality of battery cell groups, and the protective member is used to transfer the external force exerted on the first wall to the battery cell group. When the battery collides and causes the first wall to be deformed or damaged, the collision force transmitted from the first wall to the inside of the battery can be distributed to the plurality of battery cell groups through the protective member, so that the protective member can play a certain protective role for the thermal management component, thereby reducing the impact of the collision force generated on the first wall on the thermal management component, and alleviating the phenomenon of deformation or damage of the thermal management component due to collision or impact, thereby effectively reducing the risk of leakage of the thermal management component during use, which is beneficial to improving the reliability and service life of the battery.

[0116] The batteries disclosed in the embodiments of this application can be used, but are not limited to, in electrical devices such as vehicles, ships, or aircraft. A power supply system comprising the batteries disclosed in this application can be used to alleviate the problem of battery leakage during use, thereby improving the reliability and service life of the batteries.

[0117] The present invention provides an electric device that uses a battery as a power source. The electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric car, a ship, a spacecraft, etc. The electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc. The spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0118] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device according to an embodiment of the present application.

[0119] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of the present application. Figure 2 Schematic diagram of the structure of the battery 100 provided for some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. The interior of the vehicle 1000 is provided with a battery 100. The battery 100 can be arranged at the bottom of the vehicle 1000, or at the head of the vehicle 1000, or at the tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can be used as an operating power source or a power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0120] In some embodiments of the present application, the battery 100 can not only serve as the operating power source or usage power source of the vehicle 1000, but also serve as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0121] Reference Figure 2 , and please refer to Figure 3 , Figure 3 This is an exploded view of the structure of a battery 100 provided in some embodiments of the present application. The battery 100 includes a housing 10 and multiple battery cell groups 20. Multiple battery cells 21 are housed within the housing 10. Each battery cell group 20 includes multiple battery cells 21 arranged along a first direction X, and the multiple battery cell groups 20 are spaced apart along a second direction Y. For example, the first direction X and the second direction Y are perpendicular to each other.

[0122] The box 10 is used to provide an assembly space for the battery cell group 20. The box 10 can adopt various structures. Figure 3 As shown, the box body 10 may include a box body 11 and a box cover 12. The box body 11 defines an accommodating cavity 112 with an opening 111. The box cover 12 covers the opening 111, so that the box body 11 and the box cover 12 together define an assembly space for accommodating the battery cell group 20. The box cover 12 may have various structures, including a hollow structure with one end open or a plate-like structure.

[0123] Of course, the box body 11 and the box cover 12 can be formed into a variety of shapes, such as a cylinder, a cuboid or a cube. Figure 2 In the embodiment, the box body 10 is in the shape of a cuboid.

[0124] exist Figure 3In the figure, the box body 11 includes a bottom wall 113, two first walls 114 and two second walls 115. The two first walls 114 are arranged opposite to each other along the first direction X, and the two second walls 115 are arranged opposite to each other along the second direction Y. The bottom wall 113 and the box cover 12 are arranged opposite to each other along the third direction Z. One first wall 114, one second wall 115, another first wall 114 and another second wall 115 are connected end to end in sequence so that the side wall formed by the two first walls 114 and the two second walls 115 is arranged around the bottom wall 113. One end of the two first walls 114 and the two second walls 115 in the third direction Z is connected to the bottom wall 113, and the other end is enclosed to form an opening 111 for the box cover 12 to cover, so that the bottom wall 113, the two first walls 114 and the two second walls 115 jointly define a accommodating cavity 112 for accommodating the battery cell group 20. Exemplarily, the first direction X, the second direction Y, and the third direction Z are perpendicular to each other, the first direction X is the width direction of the battery 100 , the second direction Y is the length direction of the battery 100 , and the third direction Z is the height direction of the battery 100 .

[0125] Each battery cell group 20 includes a plurality of battery cells 21 arranged along a first direction X, and the plurality of battery cell groups 20 are spaced apart along a second direction Y. That is, the case 10 of the battery 100 accommodates a plurality of battery cells 21 arranged in an array, and the case 10 of the battery 100 accommodates a plurality of rows of battery cells 21 spaced apart along the second direction Y, and each row of battery cells 21 includes a plurality of battery cells 21 arranged along the first direction X.

[0126] In the battery 100, the multiple battery cells 21 can be connected in series, in parallel, or in a hybrid configuration. A hybrid configuration refers to a combination of series and parallel configurations within the multiple battery cells 21. The multiple battery cells 21 can be directly connected in series, in parallel, or in a hybrid configuration, and then the entire structure formed by the multiple battery cells 21 is housed within the housing 10. Alternatively, the battery 100 can be constructed by first connecting multiple battery cells 21 in series, in parallel, or in a hybrid configuration to form a battery module. The multiple battery modules are then connected in series, in parallel, or in a hybrid configuration to form a single structure, which is then housed within the housing 10.

[0127] In some embodiments, the battery 100 may further include other structures. For example, the battery 100 may further include a busbar component, which is used to connect the multiple battery cells 21 to achieve electrical connection between the multiple battery cells 21 .

[0128] Each battery cell 21 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 21 can be in the shape of a cuboid, a cylinder, a prism or other shapes. For example, in Figure 3 In the figure, the battery cell 21 is a rectangular parallelepiped structure.

[0129] According to some embodiments of the present application, referring to Figure 3 , and please refer to Figure 4 、 Figure 5 and Figure 6 , Figure 4 for Figure 3 The enlarged view of the battery 100 at point A is shown. Figure 5 Schematic diagram of the assembly of the protective member 40 of the battery 100 and the battery cell group 20 provided in some embodiments of the present application, Figure 6 Schematic diagram of partial assembly of a protective member 40 and a battery cell group 20 of a battery 100 provided in some embodiments of the present application. The present application provides a battery 100, comprising a housing 10, a plurality of battery cell groups 20, a thermal management component 30, and a protective member 40. The housing 10 has a first wall 114 in a first direction X. The plurality of battery cell groups 20 are housed within the housing 10, and the plurality of battery cell groups 20 are arranged along a second direction Y. The battery cell groups 20 include at least one battery cell 21, and the second direction Y intersects with the first direction X. Along the second direction Y, a thermal management component 30 is provided between two adjacent battery cell groups 20, and the thermal management component 30 is configured to exchange heat with the battery cell 21. The protective member 40 is provided between the first wall 114 and the plurality of battery cell groups 20 along the first direction X. The protective member 40 is used to transfer external forces acting on the first wall 114 to the battery cell groups 20 to protect the thermal management component 30.

[0130] The box body 10 has a first wall 114 in the first direction X, that is, the wall on one side of the box body 10 in the first direction X is the first wall 114. For example, Figure 3 In the embodiment, the box body 10 includes a box body 11 and a box cover 12 . The box body 11 has two opposite first walls 114 in a first direction X, and the plurality of battery cell groups 20 are located between the two first walls 114 in the first direction X.

[0131] Along the second direction Y, a thermal management component 30 is provided between two adjacent battery cell groups 20. That is, the thermal management component 30 is clamped between the two adjacent battery cell groups 20. The thermal management component 30 is used to abut against the battery cells 21 of the battery cell group 20 so as to perform heat exchange with the battery cells 21. Optionally, the structure of the thermal management component 30 can be various, such as a harmonica tube or a water-cooled plate.

[0132] See also Figure 3 、 Figure 4 and Figure 5 As shown, the thermal management component 30 is a plate-shaped structure, and the length direction of the thermal management component 30 is the first direction X, the thickness direction of the thermal management component 30 is the second direction Y, and the height direction of the thermal management component 30 is the third direction Z.

[0133] Exemplarily, the battery 100 includes a plurality of thermal management components 30 , which are arranged at intervals along the second direction Y, and a battery cell group 20 is disposed between every two adjacent thermal management components 30 .

[0134] Exemplarily, both ends of the thermal management component 30 in the first direction X extend beyond both sides of the battery cell groups 20 , so as to facilitate assembly of the thermal management component 30 with other components and increase the contact area between the thermal management component 30 and the battery cell groups 20 .

[0135] The protection member 40 is disposed between the first wall 114 and the plurality of battery cell groups 20 along the first direction X. That is, along the first direction X, the protection member 40 is located between the first wall 114 and the plurality of battery cell groups 20 , so that the protection member 40 can separate the first wall 114 and the plurality of battery cell groups 20 .

[0136] The protective member 40 is used to transfer the external force exerted on the first wall 114 to the battery cell group 20 to protect the thermal management component 30. That is, when the first wall 114 is collided, the protective member 40 can transfer the collision force exerted on the first wall 114 to the battery cell group 20 to achieve the purpose of impacting the thermal management component 30.

[0137] For example, in Figure 5 In the embodiment, two protective members 40 are provided in the box 10 of the battery 100. The two protective members 40 are respectively located on both sides of the multiple battery cell groups 20 along the first direction X, and the two protective members 40 are mirror-symmetrically arranged on both sides of the multiple battery cell groups 20, so that protective members 40 are provided between the two first walls 114 and the multiple battery cell groups 20, so as to protect the two ends of the thermal management component 30 in the first direction X.

[0138] Optionally, the protective member 40 may be made of a metal material, such as steel, aluminum, or copper, or a non-metallic insulating material, such as rubber, plastic, or silicone. Exemplarily, the protective member 40 is made of a non-metallic insulating material, thereby reducing the risk of short circuits between the battery cell group 20 and the first wall 114.

[0139] In this embodiment, a protective member 40 is provided between the first wall 114 of the box body 10 and the multiple battery cell groups 20, and the protective member 40 is used to transfer the external force exerted on the first wall 114 to the battery cell group 20. When the battery 100 collides and causes the first wall 114 to be deformed or damaged, the protective member 40 can distribute the collision force transmitted from the first wall 114 to the inside of the battery 100 to the multiple battery cell groups 20, so that the protective member 40 can play a certain protective role on the thermal management component 30, thereby reducing the impact of the collision force generated on the first wall 114 on the thermal management component 30, thereby alleviating the phenomenon that the thermal management component 30 is deformed or damaged due to collision or impact, and further effectively reducing the risk of leakage of the thermal management component 30 during use, which is beneficial to improving the reliability and service life of the battery 100.

[0140] According to some embodiments of the present application, referring to Figure 5 and Figure 6 , and please refer to Figure 7 and Figure 8 , Figure 7 This is a schematic structural diagram of the protective member 40 of the battery 100 provided in some embodiments of the present application. Figure 8 for Figure 7 The protective member 40 is shown in a partially enlarged view at B. Along the first direction X, the protective member 40 abuts against the plurality of battery cell groups 20. A side of the protective member 40 facing the battery cell group 20 is provided with an escape groove 41, and one end of the thermal management component 30 is disposed in the escape groove 41.

[0141] Among them, the protective member 40 abuts against the multiple battery cell groups 20, that is, the protective member 40 and the multiple battery cell groups 20 are in abutment with each other in the first direction X, and the protective member 40 abuts against the battery cell 21 closest to the protective member 40 in the first direction X among the multiple battery cells 21 of the battery cell group 20. It should be noted that the protective member 40 can be directly abutted against the multiple battery cell groups 20 along the first direction X, that is, the protective member 40 is in direct contact with the battery cell group 20. Of course, the protective member 40 can also be indirectly abutted against the multiple battery cell groups 20 along the first direction X, that is, the protective member 40 is in indirect contact with the multiple battery cell groups 20 through other components.

[0142] Optionally, the protective member 40 may be a structure that only abuts against the multiple battery cell groups 20, or the protective member 40 may be a structure that both abuts against and is interconnected with the multiple battery cell groups 20. For example, the protective member 40 may be bonded to the multiple battery cell groups 20, that is, a tape or adhesive layer may be provided between the protective member 40 and the battery cell group 20, so that the protective member 40 and the battery cell group 20 are bonded to each other, and the protective member 40 is a structure that indirectly abuts against the battery cell group 20 through a tape or adhesive layer.

[0143] In some embodiments, reference Figure 9 , Figure 9 A partial cross-sectional view of a battery 100 provided in some embodiments of the present application, wherein an adhesive member 50 is further provided between the protective member 40 and the battery cell group 20 along the first direction X, and the adhesive member 50 connects the protective member 40 and the battery cell group 20, so that the protective member 40 is connected to the battery cell 21 closest to the protective member 40 in the first direction X among the multiple battery cells 21 of the battery cell group 20 through the adhesive member 50, and the protective member 40 is a structure that indirectly abuts against the battery cell group 20 through the adhesive member 50.

[0144] For example, the adhesive member 50 may be glue or double-sided tape disposed between the protective member 40 and the battery cell group 20 .

[0145] A side of the protective member 40 facing the battery cell group 20 is provided with an avoidance groove 41, and one end of the thermal management component 30 is provided in the avoidance groove 41. That is, the protective member 40 is provided with an avoidance groove 41 on the surface for abutting against the battery cell group 20, and the avoidance groove 41 can be used for inserting one end of the thermal management component 30 in the first direction X, so that the thermal management component 30 will not be impacted by external force when the protective member 40 transfers the external force exerted on the first wall 114 to the battery cell group 20.

[0146] In some embodiments, Figure 6 In the embodiment, the battery 100 includes a plurality of thermal management components 30 arranged at intervals along the second direction Y. Figure 6 and Figure 7 As shown, the protective member 40 is provided with a plurality of avoidance grooves 41 on the side facing the battery cell group 20 in the first direction X. The plurality of avoidance grooves 41 are arranged at intervals along the second direction Y, and each avoidance groove 41 is provided for one end of a thermal management component 30 to be inserted, so that the portion of the thermal management component 30 extending out of one end of the plurality of battery cell groups 20 in the first direction X can be accommodated in the avoidance groove 41, so as to reduce the impact of the external force exerted on the first wall 114 on the thermal management component 30.

[0147] For example, in Figure 8 In the embodiment, the avoidance groove 41 runs through both sides of the protective member 40 along the third direction Z, so that the thermal management component 30 can be inserted into the avoidance groove 41, and the protective member 40 can be assembled between the first wall 114 and the multiple battery cell groups 20, which is beneficial to reduce the difficulty of assembling the battery 100.

[0148] In this embodiment, the protective member 40 is provided with a structure that abuts against the multiple battery cell groups 20 along the first direction X, and an avoidance groove 41 for inserting the heat management component 30 is provided on the side of the protective member 40 facing the battery cell group 20, so that the external impact force exerted on the first wall 114 can be directly distributed to the multiple battery cell groups 20 through the protective member 40, thereby protecting the heat management component 30 through the avoidance groove 41, thereby reducing the phenomenon of the heat management component 30 being subjected to external force impact, and facilitating the protective member 40 to transmit and distribute the external force exerted on the first wall 114 to the multiple battery cell groups 20, thereby realizing the protective effect of the protective member 40 on the heat management component 30.

[0149] According to some embodiments of the present application, see Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown, the protective member 40 includes a main body 42 and a plurality of abutting portions 43. The main body 42 is disposed between the first wall 114 and the plurality of battery cell groups 20 along the first direction X. The plurality of abutting portions 43 are spaced apart along the second direction Y on the side of the main body 42 facing the battery cell groups 20. Each abutting portion 43 abuts against a battery cell group 20 along the first direction X, and an escape groove 41 is formed between each two adjacent abutting portions 43.

[0150] Among them, the plurality of abutting portions 43 are all protruding from the side of the main body 42 facing the battery cell group 20 in the first direction X. Optionally, the main body 42 and the abutting portion 43 can be an integrally formed structure or a separately provided structure. For example, Figure 7 In the embodiment, the main body 42 and the abutting portion 43 are integrally formed, that is, the main body 42 and the abutting portion 43 are a one-piece structure, that is, the main body 42 and the abutting portion 43 are made by a one-piece forming process such as stamping, casting, or milling. Of course, in other embodiments, the main body 42 and the abutting portion 43 can also be separate structures, and the abutting portion 43 can be connected to the surface of the main body 42 on the side facing the battery cell group 20 in the first direction X by welding, clamping, or bonding.

[0151] A plurality of abutment portions 43 are arranged at intervals along the second direction Y on the side of the main body portion 42 facing the battery cell group 20, and an avoidance groove 41 is formed between each two adjacent abutment portions 43. That is to say, the plurality of abutment portions 43 are arranged at intervals along the second direction Y, so that a gap is formed between each two adjacent abutment portions 43, so that the main body portion 42 and the two adjacent abutment portions 43 jointly define an avoidance groove 41 for inserting one end of the heat management component 30.

[0152] Each abutting portion 43 abuts against one battery cell group 20 along the first direction X. That is, the abutting portions 43 and the battery cell groups 20 are arranged in a one-to-one correspondence. Each abutting portion 43 abuts against one battery cell group 20 along the first direction X.

[0153] It should be noted that in the embodiment where the battery cell group 20 includes a plurality of battery cells 21 arranged along the first direction X, each abutting portion 43 abuts against the battery cell 21 closest to the abutting portion 43 among the plurality of battery cells 21 of the corresponding battery cell group 20 .

[0154] In this embodiment, the protective member 40 includes a main body portion 42 and a plurality of abutment portions 43 arranged along the first direction X on the side of the main body portion 42 facing the battery cell group 20, and the plurality of abutment portions 43 are arranged at intervals along the second direction Y, so that an avoidance groove 41 for inserting the heat management component 30 can be formed between each two adjacent abutment portions 43, and each abutment portion 43 corresponds to abutting against a battery cell group 20, so that when the battery 100 collides, the external impact force exerted on the first wall 114 can be distributed to the plurality of battery cell groups 20 through the plurality of abutment portions 43. The structure is simple, easy to assemble, and can provide better protection for the heat management component 30.

[0155] In some embodiments, see Figure 6 and Figure 9 As shown, the thermal management component 30 is spaced apart from the main body 42 along the first direction X. That is, in the first direction X, a gap is formed between the thermal management component 30 and the main body 42 of the protective member 40 so that the thermal management component 30 and the main body 42 of the protective member 40 do not contact each other in the first direction X. In other words, the thermal management component 30 is spaced apart from the bottom surface of the avoidance groove 41 in the first direction X.

[0156] In this embodiment, by setting the thermal management component 30 to a structure with a gap formed between it and the main body 42 of the protective member 40 in the first direction X, the thermal management component 30 is not in contact with the bottom surface of the avoidance groove 41 in the first direction X, thereby reducing the phenomenon of the protective member 40 transferring stress to the thermal management component 30 along the first direction X when the first wall 114 is collided, and forming a buffer space between the main body 42 and the thermal management component 30. Even if the main body 42 of the protective member 40 is deformed, the squeezing of the thermal management component 30 by the main body 42 can be reduced, which is conducive to further enhancing the protective effect of the protective member 40 on the thermal management component 30.

[0157] According to some embodiments of the present application, see Figure 9 As shown, the contact portion 43 is bonded to the corresponding battery cell group 20. In other words, the protective member 40 is bonded to the battery cell group 20 via the contact portion 43.

[0158] Among them, along the first direction X, an adhesive member 50 is provided between the abutting portion 43 and the corresponding battery cell group 20, and the abutting portion 43 is bonded to the corresponding battery cell group 20 through the adhesive member 50, so that the abutting portion 43 is indirectly abutted on the corresponding battery cell group 20 through the adhesive member 50.

[0159] For example, the adhesive member 50 may be glue or double-sided tape disposed between the abutting portion 43 and the corresponding battery cell group 20 .

[0160] In this embodiment, by setting the abutment portion 43 and the corresponding battery cell group 20 as a mutually bonded structure, the effect of the abutment portion 43 abutting on the battery cell group 20 can be further improved, and the protective member 40 and the battery cell group 20 can be formed into a whole, which is convenient for assembly on the one hand, and can improve the effect of the abutment portion 43 in transmitting the impact force exerted on the first wall 114 to the battery cell group 20 on the other hand.

[0161] According to some embodiments of the present application, referring to Figure 6 、 Figure 8 and Figure 9 , and please refer to Figure 10 and Figure 11 , Figure 10 This is a schematic diagram of the assembly of the delivery pipe 60 and the thermal management component 30 provided in some embodiments of the present application. Figure 11 Schematic diagram of the assembly of the protective member 40 and the delivery tube 60 provided in some embodiments of the present application. The battery 100 includes a plurality of thermal management components 30 arranged at intervals along the second direction Y. The battery 100 also includes a delivery tube 60, which is arranged between the first wall 114 and the plurality of battery cell groups 20 along the first direction X. The delivery tube 60 extends along the second direction Y and is in communication with the plurality of thermal management components 30. The delivery tube 60 is configured to provide a heat exchange medium to the thermal management components 30. The abutting portion 43 includes a first portion 431. Along the first direction X, the first portion 431 has a first surface 4311 that abuts the battery cell group 20. The first surface 4311 is provided with a receiving groove 4312. The receiving groove 4312 extends along the second direction Y through the side surfaces of the first portion 431 on opposite sides in the second direction Y. The delivery tube 60 is received in the receiving groove 4312.

[0162] In which, the delivery pipe 60 is located between the first wall 114 and the multiple battery cell groups 20 in the first direction X, and the delivery pipe 60 passes through the multiple thermal management components 30 in sequence along the second direction Y and is connected to the multiple thermal management components 30. The portion of the thermal management component 30 extending out of the multiple battery cell groups 20 in the first direction X is interconnected with the delivery pipe 60, so that the two ends of the thermal management component 30 are respectively connected to the delivery pipe 60.

[0163] Exemplarily, the battery 100 includes two delivery pipes 60, which are respectively located on both sides of the multiple battery cell groups 20 in the first direction X, so that a delivery pipe 60 is provided between the two first walls 114 and the multiple battery cell groups 20. One of the two delivery pipes 60 is used to input heat exchange medium into the thermal management component 30, and the other delivery pipe 60 is used to supply the heat exchange medium in the thermal management component 30 to flow out, and the two ends of the thermal management component 30 in the first direction X extend from both sides of the multiple battery cell groups 20, so that the two ends of the thermal management component 30 are respectively connected to the two delivery pipes 60.

[0164] The first portion 431 has a first surface 4311 that abuts against the battery cell group 20 . That is, the surface of the first portion 431 of the abutting portion 43 that abuts against the corresponding battery cell group 20 in the first direction X is the first surface 4311 .

[0165] The first surface 4311 is provided with a receiving groove 4312, and the receiving groove 4312 passes through the side surfaces of the first part 431 on opposite sides in the second direction Y along the second direction Y. That is, the first parts 431 of the multiple abutting portions 43 of the protective member 40 are all provided with a receiving groove 4312, and each receiving groove 4312 passes through the first part 431 of the corresponding abutting portion 43 on opposite sides in the second direction Y along the second direction Y, so that the projections of the receiving grooves 4312 of the first parts 431 of the multiple abutting portions 43 in the second direction Y at least partially overlap, so that the receiving grooves 4312 of the first parts 431 of the multiple abutting portions 43 jointly form an assembly groove 44 extending along the second direction Y, and the conveying pipe 60 is accommodated in the assembly groove 44 along the first direction X, that is, the conveying pipe 60 is accommodated in the receiving grooves 4312 of the first parts 431 of the multiple abutting portions 43 along the first direction X.

[0166] In this embodiment, the battery 100 is further provided with a delivery pipe 60 for delivering heat exchange medium to the thermal management component 30, and the delivery pipe 60 is a structure extending along the second direction Y, so as to facilitate the communication between the delivery pipe 60 and the multiple thermal management components 30 arranged at intervals along the second direction Y. Specifically, the first portions 431 of the plurality of abutting portions 43 abut against the first surface 4311 of the battery cell group 20 to form receiving grooves 4312. The receiving grooves 4312 extend through the side surfaces of the first portions 431 of the abutting portions 43 along the second direction Y, allowing the delivery tube 60 to be received within the receiving grooves 4312 of the first portions 431 of the plurality of abutting portions 43. Thus, the protective member 40 can provide a certain degree of protection for the delivery tube 60. External impact forces exerted on the first wall 114 can be distributed to the plurality of battery cell groups 20 via the plurality of abutting portions 43 of the protective member 40, thereby reducing the impact of the collision force generated on the first wall 114 on the delivery tube 60. This effectively alleviates deformation or damage to the delivery tube 60 caused by collisions or impacts, thereby reducing the risk of leakage during use of the delivery tube 60, thereby improving the reliability and service life of the battery 100. Furthermore, the delivery tube 60 and the first portion 431 can share a portion of space in the first direction X, thereby improving the internal space utilization of the battery 100.

[0167] In some embodiments, see Figure 9 As shown, along the first direction X, the depth of the accommodating groove 4312 is greater than the outer diameter of the delivery tube 60. In other words, the distance between the bottom surface of the accommodating groove 4312 and the first surface 4311 in the first direction X is greater than the size of the delivery tube 60 in the first direction X. This allows the delivery tube 60 to not protrude beyond the first surface 4311 in the first direction X. This allows the delivery tube 60 to be spaced apart from the battery cell group 20 in the first direction X while also being spaced apart from the bottom surface of the accommodating groove 4312 in the first direction X.

[0168] In this embodiment, by setting the groove depth of the accommodating groove 4312 in the first direction X to be greater than the outer diameter of the delivery tube 60, after the abutting portion 43 abuts the battery cell group 20 in the first direction X, the distance between the groove bottom surface of the accommodating groove 4312 and the battery cell group 20 in the first direction X is greater than the outer diameter of the delivery tube 60. This ensures that the delivery tube 60 and the groove bottom surface of the accommodating groove 4312, as well as at least one of the delivery tube 60 and the battery cell group 20, have a clearance fit in the first direction X. This can alleviate the phenomenon of hard contact or hard collision between the delivery tube 60 and the protective member 40. When the first wall 114 is impacted, the stress transferred from the protective member 40 to the delivery tube 60 in the first direction X is reduced. In addition, a buffer space can be formed between the groove bottom surface of the accommodating groove 4312 and the delivery tube 60. Even if the abutting portion 43 is deformed, the squeezing of the abutting portion 43 on the delivery tube 60 can be reduced, which helps to further enhance the protective effect of the protective member 40 on the delivery tube 60.

[0169] According to some embodiments of the present application, referring to Figure 8 and Figure 9 , and please refer to Figure 12 and Figure 13 , Figure 12 A front view of the protective member 40 of the battery 100 provided in some embodiments of the present application in the second direction Y, Figure 13 This is a cross-sectional view of the first abutting portion 433 of the protective member 40 provided in some embodiments of the present application. The first surface 4311 is connected to the groove side surface 4312a of the accommodating groove through the arc surface 4313.

[0170] Among them, the first surface 4311 is connected to the groove side 4312a of the accommodating groove through the arc surface 4313, that is, a rounded corner structure is formed between the first surface 4311 of the first part 431 and the groove side 4312a of the accommodating groove, so that the first surface 4311 of the first part 431 and the groove side 4312a of the accommodating groove are an arc transition structure.

[0171] In this embodiment, by setting the first surface 4311 of the first part 431 and the groove side 4312a of the accommodating groove to be connected by the arc surface 4313, the groove side 4312a of the accommodating groove and the first surface 4311 of the first part 431 are formed into an arc transition structure. On the one hand, the phenomenon of forming a sharp angle between the first surface 4311 and the groove side 4312a of the accommodating groove can be reduced, thereby reducing the risk of the first part 431 puncturing the battery cell 21. On the other hand, the first part 431 of the abutting portion 43 can better transfer the external impact force exerted on the first wall 114 to the battery cell group 20, thereby reducing the stress concentration phenomenon.

[0172] According to some embodiments of the present application, see Figure 7、 Figure 8 、 Figure 9 and Figure 12 As shown, the abutting portion 43 may further include a second portion 432, the second portion 432 being connected to one side of the first portion 431 in the third direction Z, the second portion 432 extending along the third direction Z in a direction away from the first portion 431, and the second portion 432 abutting against the battery cell group 20 along the first direction X, the first direction X, the second direction Y and the third direction Z being non-coplanar and intersecting with each other.

[0173] In which, the second part 432 is connected to one side of the first part 431 in the third direction Z, and the second part 432 extends along the third direction Z in a direction away from the first part 431, that is, the second part 432 is a strip structure extending along the third direction Z, and the second part 432 is connected to the surface of one side of the first part 431 in the third direction Z.

[0174] Optionally, the first portion 431 and the second portion 432 may be an integrally formed structure or a separately formed structure. For example, Figure 8 In the embodiment, the first portion 431 and the second portion 432 are integrally formed, that is, the first portion 431 and the second portion 432 are a one-piece structure, that is, the first portion 431 and the second portion 432 are made by a one-piece forming process such as stamping, casting, or milling. Of course, in other embodiments, the first portion 431 and the second portion 432 may also be separate structures, and the second portion 432 may be connected to the surface of the first portion 431 on one side in the third direction Z by welding, clamping, or bonding.

[0175] For example, in Figure 9 In the embodiment, the second portion 432 is connected to a side of the first portion 431 that faces away from the box cover 12 in the third direction Z.

[0176] The second portion 432 abuts against the battery cell group 20 along the first direction X, that is, the first portion 431 and the second portion 432 of the abutting portion 43 are both abutted against the corresponding battery cell group 20 in the first direction X. For example, Figure 12 and Figure 13 In the embodiment, the second portion 432 has a second surface 4321 abutting against the battery cell group 20 in the first direction X, and the second surface 4321 of the second portion 432 is coplanar with the first surface 4311 of the first portion 431, thereby facilitating the effect of both the first portion 431 and the second portion 432 abutting against the battery cell group 20.

[0177] In this embodiment, the abutting portion 43 is further provided with a second portion 432 connected to one side of the first portion 431 in the third direction Z. The second portion 432 extends along the third direction Z and abuts against the battery cell group 20 along the first direction X, so that the first portion 431 and the second portion 432 of the abutting portion 43 are both structures abutting against the battery cell group 20, which is beneficial to increase the contact area between the abutting portion 43 and the battery cell group 20, thereby increasing the force-bearing area of the battery cell group 20, and further, when the abutting portion 43 transfers the external impact force exerted on the first wall 114 to the battery cell group 20, it can alleviate the phenomenon of excessive force concentration on the battery cell group 20, thereby reducing the risk of the battery cells 21 of the battery cell group 20 being crushed.

[0178] According to some embodiments of the present application, see Figure 8 、 Figure 9 、 Figure 12 and Figure 13 As shown, the multiple abutting portions 43 include a first abutting portion 433, the first abutting portion 433 also includes a third portion 4331, the third portion 4331 is connected to the side of the first portion 431 away from the second portion 432 in the third direction Z, the third portion 4331 extends along the third direction Z in a direction away from the first portion 431, and the third portion 4331 abuts against the battery cell group 20 along the first direction X.

[0179] The plurality of abutting portions 43 include a first abutting portion 433, that is, the plurality of abutting portions 43 include at least one first abutting portion 433. For example, Figure 7 In the figure, the multiple abutting portions 43 include multiple first abutting portions 433 and two second abutting portions 434. The two abutting portions 43 located at both ends of the multiple abutting portions 43 in the second direction Y are both second abutting portions 434, and the multiple first abutting portions 433 are located between the two second abutting portions 434 in the second direction Y.

[0180] The third part 4331 is connected to the side of the first part 431 in the third direction Z that faces away from the second part 432, and the third part 4331 extends along the third direction Z in a direction away from the first part 431, that is, the third part 4331 is a strip structure extending along the third direction Z, and the third part 4331 is connected to the surface of the first part 431 in the third direction Z that faces away from the second part 432.

[0181] For example, in Figure 9 In the embodiment, the third portion 4331 is connected to a side of the first portion 431 facing the box cover 12 in the third direction Z.

[0182] The third portion 4331 abuts against the battery cell group 20 along the first direction X, that is, the first portion 431, the second portion 432 and the third portion 4331 of the first abutting portion 433 are all structures that abut against the corresponding battery cell group 20 in the first direction X. For example, Figure 12 and Figure 13 In the embodiment, the third portion 4331 has a third surface 4331a abutting against the battery cell group 20 in the first direction X, and the third surface 4331a of the third portion 4331 is coplanar with the first surface 4311 of the first portion 431, thereby facilitating the effect of both the first portion 431 and the third portion 4331 abutting against the battery cell group 20.

[0183] Optionally, the first portion 431 and the third portion 4331 may be an integrally formed structure or a separately formed structure. For example, Figure 8 In the embodiment, the first portion 431 and the third portion 4331 are integrally formed, that is, the first portion 431 and the third portion 4331 are a one-piece structure, that is, the first portion 431 and the third portion 4331 are made by a one-piece forming process such as stamping, casting, or milling. Of course, in other embodiments, the first portion 431 and the third portion 4331 may also be separate structures, and the third portion 4331 may be connected to the surface of the first portion 431 on the side facing away from the second portion 432 in the third direction Z by welding, clamping, or bonding.

[0184] In this embodiment, the plurality of abutting portions 43 further include a first abutting portion 433. The first abutting portion 433 is further provided with a third portion 4331 connected to the first portion 431 on a side facing away from the second portion 432 in the third direction Z. The third portion 4331 extends along the third direction Z and abuts against the battery cell group 20 along the first direction X. As a result, the first portion 431, the second portion 432, and the third portion 4331 of the first abutting portion 433 are all structures that abut against the battery cell group 20. This is beneficial for further increasing the contact area between the first abutting portion 433 and the battery cell group 20, thereby further increasing the force-bearing area of the corresponding battery cell group 20. As a result, when the first abutting portion 433 transmits the external impact force exerted on the first wall 114 to the corresponding battery cell group 20, the phenomenon of excessive force concentration on the battery cell group 20 can be alleviated, thereby reducing the risk of the battery cells 21 of the battery cell group 20 being crushed.

[0185] According to some embodiments of the present application, see Figure 7 and Figure 8 As shown, the protective member 40 may further include a reinforcing portion 45 , and the reinforcing portion 45 connects the third portions 4331 of at least two first abutting portions 433 .

[0186] For example, in Figure 7In the embodiment, the reinforcing portion 45 is used to connect the third portions 4331 of two adjacent first abutting portions 433 , and the reinforcing portion 45 is connected between the third portions 4331 of at least one group of two adjacent first abutting portions 433 .

[0187] For example, see Figure 7 As shown, three reinforcing portions 45 are provided on each protective member 40, and the three reinforcing portions 45 are arranged at intervals along the second direction Y. Each reinforcing portion 45 is a group of third portions 4331 of two adjacent first abutting portions 433. Of course, in other embodiments, the number of reinforcing portions 45 provided on each protective member 40 may also be one, two, four or five, etc.

[0188] Optionally, the reinforcing portion 45 and the third portion 4331 may be an integrally formed structure or a separately provided structure. For example, Figure 8 In the embodiment, the reinforcing portion 45 and the third portion 4331 are integrally formed, that is, the reinforcing portion 45 and the third portion 4331 are a one-piece structure, that is, the reinforcing portion 45 and the third portion 4331 are made by a one-piece molding process such as stamping, casting, or milling. Of course, in other embodiments, the reinforcing portion 45 and the third portion 4331 can also be separate structures, and the reinforcing portion 45 can be connected to the third portion 4331 by welding, clamping, or bonding.

[0189] In this embodiment, the protective member 40 is also provided with a reinforcement portion 45, and the reinforcement portion 45 connects the third portion 4331 of at least two first abutting portions 433. On the one hand, it can improve the structural strength and structural stability of the first abutting portions 433 arranged at intervals along the second direction Y. On the other hand, the reinforcement portion 45 can be used to identify the installation direction of the protective member 40 in the third direction Z, so as to play the role of error-proof design, thereby helping to reduce assembly errors of the protective member 40 when it is assembled into the box body 10.

[0190] In some embodiments, see Figure 7 and Figure 8 As shown, along the third direction Z, the reinforcing portion 45 is connected to an end of the third portion 4331 away from the first portion 431 .

[0191] In this embodiment, by arranging the reinforcing portion 45 at one end of the third portion 4331 away from the first portion 431 in the third direction Z, on the one hand, the interference between the reinforcing portion 45 and the thermal management component 30 arranged in the avoidance groove 41 can be reduced, so as to reduce the phenomenon of the reinforcing portion 45 squeezing or damaging the thermal management component 30. On the other hand, it is convenient to assemble the protective member 40 between the first wall 114 and the multiple battery cell groups 20, which is beneficial to reduce the difficulty of assembling the protective member 40.

[0192] According to some embodiments of the present application, see Figure 3 、 Figure 8 and Figure 9 As shown, the box body 10 may include a box body 11 and a box cover 12. The box body 11 has an interior formed with a receiving cavity 112 having an opening 111. The receiving cavity 112 is used to accommodate multiple battery cell groups 20. The opening 111 is provided on one side of the box body 11 in the third direction Z. The box body 11 has a first wall 114 in the first direction X. The box cover 12 covers the opening 111. Along the third direction Z, the third portion 4331 is connected to the side of the first portion 431 facing the box cover 12.

[0193] The box body 11 has a first wall 114 in the first direction X, that is, the wall on one side of the box body 11 in the first direction X is the first wall 114. Figure 3 In the figure, the box body 11 includes a bottom wall 113, two first walls 114 and two second walls 115. The bottom wall 113 is arranged opposite to the end cover along the third direction Z, the two first walls 114 are arranged opposite to each other along the first direction X, and the two second walls 115 are arranged opposite to each other along the second direction Y. One first wall 114, one second wall 115, another first wall 114 and another second wall 115 are connected end to end in sequence, so that the side wall formed by the two first walls 114 and the two second walls 115 is arranged around the bottom wall 113. One end of the two first walls 114 and the two second walls 115 in the third direction Z is connected to the bottom wall 113, and the other end is enclosed to form an opening 111 for the box cover 12 to cover, so that the bottom wall 113, the two first walls 114 and the two second walls 115 jointly define a accommodating cavity 112 for accommodating the battery cell group 20.

[0194] Along the third direction Z, the third part 4331 is connected to the side of the first part 431 facing the box cover 12, that is, the third part 4331 of the first abutting portion 433 is located on the side of the first part 431 facing the box cover 12 in the third direction Z, so that the second part 432 is located on the side of the first part 431 away from the box cover 12 in the third direction Z. Correspondingly, the reinforcing portion 45 is connected to one end of the third part 4331 close to the box cover 12 in the third direction Z, thereby facilitating the assembly of the protective member 40 between the first wall 114 and the multiple battery cell groups 20 from the opening 111 of the box body 11 along the third direction Z, and enabling one end of the thermal management component 30 to be correspondingly arranged in the avoidance groove 41 formed between the two adjacent abutting portions 43 during the process of the protective member 40 being assembled between the first wall 114 and the multiple battery cell groups 20 along the third direction Z.

[0195] Exemplarily, in the third direction Z, the heat management component 30 and the reinforcement portion 45 are arranged at intervals.

[0196] In this embodiment, the box body 10 is provided with a box body 11 and a box cover 12, and the box body 11 is formed with an opening 111 on one side in the third direction Z, and the box cover 12 covers the opening 111 of the box body 11 to accommodate multiple battery cell groups 20, wherein, by arranging the third part 4331 of the first abutting portion 433 on the side of the first part 431 of the first abutting portion 433 facing the box cover 12 in the third direction Z, the reinforcing portion 45 is a structure located on the side of the first part 431 facing the box cover 12 in the third direction Z, thereby facilitating the assembly of the protective member 40 between the first wall 114 and the multiple battery cell groups 20 along the third direction Z, which is beneficial to reducing the difficulty of assembling the protective member 40, and on the other hand, facilitating direct observation of the reinforcing portion 45 from the opening 111 of the box body 11, so as to facilitate identification of the installation direction of the protective member 40 in the third direction Z.

[0197] According to some embodiments of the present application, see Figure 3 、 Figure 4 、 Figure 9 and Figure 11 As shown, the battery 100 may further include a main conduit 70 and a plurality of connecting conduits 80. The main conduit 70 is disposed between the first wall 114 and the plurality of battery cell groups 20 along a first direction X, and the main conduit 70 extends along a second direction Y. The plurality of connecting conduits 80 are spaced apart along the second direction Y, and the connecting conduits 80 connect the main conduit 70 and the delivery conduit 60. The main conduit 70 is configured to provide a heat exchange medium to the delivery conduit 60.

[0198] Exemplarily, the battery 100 includes two main pipes 70, which are respectively located on both sides of the multiple battery cell groups 20 in the first direction X, so that a main pipe 70 is provided between the two first walls 114 and the multiple battery cell groups 20. The main pipes 70 and the delivery pipes 60 are arranged in a one-to-one correspondence, and each main pipe 70 is connected to the corresponding delivery pipe 60 through a plurality of connecting pipes 80. One of the two main pipes 70 is used to input heat exchange medium into the delivery pipe 60, and the other main pipe 70 is used to allow the heat exchange medium in the delivery pipe 60 to flow out, so as to realize heat exchange between the thermal management component 30 and the battery cell 21.

[0199] Of course, in other embodiments, the battery 100 may not be provided with the main pipe 70 and the connecting pipe 80 , and the delivery pipe 60 may be directly connected to a device for storing a heat exchange medium outside the battery 100 .

[0200] Multiple connecting pipes 80 are arranged at intervals along the second direction Y, and the connecting pipes 80 connect the main pipeline 70 and the delivery pipe 60. That is, multiple connecting pipes 80 are structures arranged at intervals on the main pipeline 70 along the second direction Y, so that different positions of the main pipeline 70 in the second direction Y are connected to the connecting pipes 80, and different positions of the delivery pipe 60 in the second direction Y are connected to the main pipeline 70 through the connecting pipes 80.

[0201] In this embodiment, the battery 100 is further provided with a main pipe 70 and a plurality of connecting pipes 80. The main pipe 70 is a structure extending along the second direction Y, and the plurality of connecting pipes 80 are structures arranged at intervals on the main pipe 70 along the second direction Y, so that the main pipe 70 is a structure connected to the delivery pipe 60 at intervals through the plurality of connecting pipes 80, so that the main pipe 70 can form a plurality of delivery points on the delivery pipe 60 for providing heat exchange medium through the plurality of connecting pipes 80, which is beneficial to improving the balance of the flow rate and pressure of the heat exchange medium at various positions in the delivery pipe 60 in the second direction Y, and thereby making the flow rate and pressure of the heat exchange medium provided by the delivery pipe 60 to the plurality of thermal management components 30 more balanced, so that the heat exchange capacity between the plurality of thermal management components 30 is close, which is beneficial to alleviating the phenomenon of local temperature rise among the plurality of battery cell groups 20 in the battery 100.

[0202] In some embodiments, see Figure 9 and Figure 11 As shown, along the third direction Z, the main pipe 70 is located on one side of the first portion 431 , and the first direction X, the second direction Y and the third direction Z are not coplanar and intersect with each other.

[0203] The main pipe 70 can be located on the side of the first portion 431 facing the box cover 12 in the third direction Z, or on the side of the first portion 431 facing away from the box cover 12 in the third direction Z. For example, Figure 9 In the embodiment, the main conduit 70 is arranged on the side of the first portion 431 facing the box cover 12 in the third direction Z, so that the main conduit 70 can be easily assembled and maintained from the opening 111 of the box body 11 .

[0204] In this embodiment, by arranging the main pipe 70 on one side of the first part 431 in the third direction Z, on the one hand, it is convenient to assemble the main pipe 70, which is beneficial to reducing the difficulty of assembling the main pipe 70, and enables the main pipe 70 and the first part 431 to share part of the space in the first direction X, which is beneficial to improving the internal space utilization rate of the battery 100. On the other hand, it can realize the mutual separation between the delivery pipe 60 and the main pipe 70, which is beneficial to reducing the interference and extrusion between the main pipe 70 and the delivery pipe 60.

[0205] According to some embodiments of the present application, see Figure 8 、 Figure 9 and Figure 11 As shown, the plurality of abutting portions 43 may include a first abutting portion 433, the first abutting portion 433 further including a third portion 4331. The third portion 4331 is connected to a side of the first portion 431 facing the main duct 70 in the third direction Z. The third portion 4331 extends away from the first portion 431 along the third direction Z, and the third portion 4331 abuts against the battery cell group 20 along the first direction X. Along the first direction X, the main duct 70 is located between the first wall 114 and the third portion 4331.

[0206] In which, the third part 4331 is connected to the side of the first part 431 facing the main pipe 70 in the third direction Z, and the third part 4331 extends along the third direction Z in a direction away from the first part 431, that is, the third part 4331 is a strip structure extending along the third direction Z, and the third part 4331 is connected to the surface of the side of the first part 431 facing the main pipe 70 in the third direction Z.

[0207] Exemplarily, the main duct 70 is disposed on a side of the first portion 431 facing the tank cover 12 , and correspondingly, the third portion 4331 is connected to a side of the first portion 431 facing the tank cover 12 .

[0208] Along the first direction X, the main duct 70 is located between the first wall 114 and the third portion 4331 . That is, an accommodation space for accommodating the main duct 70 is formed between the third portion 4331 of the first abutting portion 433 and the first wall 114 of the box body 11 .

[0209] In this embodiment, the plurality of abutting portions 43 further include a first abutting portion 433, and the first abutting portion 433 is further provided with a third portion 4331 connected to the side of the first portion 431 facing the main conduit 70 in the third direction Z. The third portion 4331 extends along the third direction Z and abuts against the battery cell group 20 along the first direction X. By arranging the main conduit 70 between the first wall 114 and the third portion 4331 in the first direction X, the protective member 40 can also provide a certain degree of protection for the main conduit 70, so that the external impact force exerted on the first wall 114 can be directly distributed to the multiple battery cell groups 20 through the plurality of abutting portions 43 of the protective member 40, thereby reducing the impact of the collision force generated on the first wall 114 on the main conduit 70, thereby alleviating deformation or damage of the main conduit 70 caused by collision or impact, and thus effectively reducing the risk of leakage of the main conduit 70 during use, which is beneficial to improving the reliability and service life of the battery 100.

[0210] In some embodiments, see Figure 9As shown, along the first direction X, the minimum distance between the first wall 114 and the third portion 4331 is greater than the outer diameter of the main pipe 70. In other words, the minimum distance between the first wall 114 and the third portion 4331 of the first abutting portion 433 in the first direction X is greater than the size of the main pipe 70 in the first direction X. This allows the main pipe 70 to be spaced apart from the third portion 4331 in the first direction X and also spaced apart from the first wall 114 in the first direction X.

[0211] In this embodiment, by setting the minimum distance between the first wall 114 and the third part 4331 in the first direction X to be greater than the outer diameter of the main pipe 70, the main pipe 70 and the first wall 114, as well as the main pipe 70 and at least one of the third part 4331, are clearance-fit structures in the first direction X, thereby alleviating the phenomenon of hard contact or hard collision between the main pipe 70 and the first wall 114, so that when the first wall 114 is collided, the phenomenon of the protective part 40 transferring stress to the main pipe 70 along the first direction X can be reduced, and a buffer space can be formed between the first wall 114 and the main pipe 70. Even if the first wall 114 is deformed, the squeezing of the main pipe 70 by the first wall 114 can be reduced, which is conducive to further enhancing the protective effect of the protective part 40 on the main pipe 70.

[0212] According to some embodiments of the present application, referring to Figure 7 、 Figure 8 and Figure 11 , and please refer to Figure 14 , Figure 14 A cross-sectional view of a second abutting portion 434 of a protective member 40 provided in some embodiments of the present application. The plurality of abutting portions 43 may further include a second abutting portion 434. Along the third direction Z, a receiving groove 4312 of the second abutting portion 434 extends through the side of the first portion 431 of the second abutting portion 434 facing the main pipe 70. The second abutting portion 434 corresponds one-to-one with the connecting pipe 80, and the connecting pipe 80 is disposed within the receiving groove 4312 of the second abutting portion 434.

[0213] The second abutting portion 434 corresponds to the connecting pipe 80 one by one, that is, the abutting portion 43 corresponding to the position of the connecting pipe 80 among the plurality of abutting portions 43 is the second abutting portion 434. Figure 11 Among the multiple abutment portions 43, the two abutment portions 43 located at both ends in the second direction Y are both second abutment portions 434, and the abutment portion 43 located between the two second abutment portions 434 among the multiple abutment portions 43 is both first abutment portions 433. Correspondingly, the connecting pipe 80 is correspondingly arranged at both ends of each protective member 40.

[0214] Along the third direction Z, the receiving groove 4312 of the second abutting portion 434 penetrates the side of the first portion 431 of the second abutting portion 434 facing the main pipe 70, that is, see Figure 11 and Figure 14 As shown, the accommodating groove 4312 provided on the first surface 4311 of the first part 431 of the second abutting portion 434 extends in the third direction Z to the surface of the first part 431 facing the main pipe 70, so that the first part 431 of the first abutting portion 433 is formed with a notch for inserting the connecting pipe 80 on the side facing the main pipe 70 in the third direction Z, so that the connecting pipe 80 can be inserted into the accommodating groove 4312 from the side facing the main pipe 70 of the first part 431 of the first abutting portion 433 along the third direction Z, thereby realizing that the connecting pipe 80 connects the delivery pipe 60 and the main pipe 70, and there is no need to set the connecting pipe 80 as a special-shaped structure to bypass the abutting portion 43, which is beneficial to reducing the manufacturing difficulty and assembly difficulty of the connecting pipe 80.

[0215] In this embodiment, the abutting portion 43 corresponding to the position of the connecting pipe 80 among the multiple abutting portions 43 is the second abutting portion 434, and the receiving groove 4312 of the second abutting portion 434 passes through the side of the first portion 431 facing the main pipe 70 along the third direction Z, so that the connecting pipe 80 can be arranged in the receiving groove 4312 along the third direction Z and connect the delivery pipe 60 and the main pipe 70. On the one hand, it is conducive to reducing the difficulty of connecting the connecting pipe 80 to the delivery pipe 60 and the main pipe 70, thereby reducing the difficulty of assembling the battery 100. On the other hand, the connecting pipe 80 is accommodated in the receiving groove 4312. The structure within 312 enables the protective member 40 to also play a certain protective role on the connecting tube 80, so that the external impact force exerted on the first wall 114 can be directly distributed to the multiple battery cell groups 20 through the multiple abutment portions 43 of the protective member 40, thereby reducing the impact of the collision force generated on the first wall 114 on the connecting tube 80, thereby alleviating the phenomenon of deformation or damage of the connecting tube 80 caused by collision or impact, and further effectively reducing the risk of leakage of the connecting tube 80 during use, which is beneficial to improving the reliability and service life of the battery 100.

[0216] According to some embodiments of the present application, see Figure 9 As shown, the protection member 40 is spaced apart from the first wall 114 along the first direction X. That is, a gap is formed between the protection member 40 and the first wall 114 in the first direction X, so that the body 42 of the protection member 40 does not contact the first wall 114 in the first direction X.

[0217] In this embodiment, the protective member 40 and the first wall 114 of the box body 10 are arranged to be spaced apart along the first direction X, so that the protective member 40 and the first wall 114 are a clearance-fit structure. On the one hand, it is convenient to assemble the protective member 40 between the first wall 114 and the multiple battery cell groups 20, which is conducive to reducing the difficulty of assembling the protective member 40. On the other hand, a certain buffer space can be formed between the first wall 114 and the protective member 40 to reduce the phenomenon that the stress of the first wall 114 is continuously exerted on the battery cell group 20 through the protective member 40.

[0218] According to some embodiments of the present application, see Figure 7 、 Figure 8 、 Figure 9 and Figure 11 As shown, the battery 100 may further include a delivery tube 60, which is disposed between the first wall 114 and the plurality of battery cell groups 20 along the first direction X. The delivery tube 60 extends along the second direction Y and is in communication with the thermal management component 30. The delivery tube 60 is configured to provide a heat exchange medium to the thermal management component 30. The protective member 40 is provided with an assembly groove 44 on a side facing the battery cell group 20 in the first direction X. The assembly groove 44 penetrates the protective member 40 along the second direction Y, and the delivery tube 60 is accommodated in the assembly groove 44.

[0219] In this embodiment, the battery 100 is further provided with a delivery pipe 60 for delivering a heat exchange medium to the thermal management component 30, and the delivery pipe 60 is a structure extending along the second direction Y, so that the delivery pipe 60 and the thermal management component 30 are connected to each other. In this embodiment, an assembly groove 44 is provided on the side of the protective member 40 facing the battery cell group 20 along the first direction X, and the assembly groove 44 is a structure penetrating the protective member 40 along the second direction Y, so that the delivery pipe 60 can be accommodated in the assembly groove 44 of the protective member 40. On the one hand, the protective member 40 can provide a certain degree of protection for the delivery pipe 60, so that The external impact force exerted on the first wall 114 can be directly distributed to the multiple battery cell groups 20 through the protective member 40, so as to reduce the impact of the collision force generated on the first wall 114 on the delivery tube 60, thereby effectively alleviating the deformation or damage of the delivery tube 60 caused by collision or impact, thereby reducing the risk of leakage of the delivery tube 60 during use, which is beneficial to improving the reliability and service life of the battery 100. On the other hand, the delivery tube 60 and the protective member 40 can share part of the space in the first direction X, which is beneficial to improving the internal space utilization of the battery 100.

[0220] In some embodiments, see Figure 7 、 Figure 8 、 Figure 9 and Figure 11As shown, the protective member 40 may include a plurality of abutting portions 43 arranged at intervals along the second direction Y. An escape groove 41 is formed between each two adjacent abutting portions 43. One end of the thermal management component 30 is disposed within the escape groove 41, and each abutting portion 43 abuts against a battery cell group 20 along the first direction X. Along the first direction X, a receiving groove 4312 is provided on the side of the abutting portion 43 facing the battery cell group 20. The receiving groove 4312 extends through the abutting portion 43 along the second direction Y. The receiving grooves 4312 of the plurality of abutting portions 43 form an assembly groove 44.

[0221] In which, the accommodating grooves 4312 of multiple abutting portions 43 form an assembly groove 44, that is, the projections of the accommodating grooves 4312 of multiple abutting portions 43 on the second direction Y at least partially overlap, so that the accommodating grooves 4312 of multiple abutting portions 43 jointly form an assembly groove 44 extending along the second direction Y, so that the conveying pipe 60 can be accommodated in the assembly groove 44 along the first direction X.

[0222] It should be noted that in an embodiment where the protective member 40 is not provided with the abutment portion 43 and the protective member 40 is a plate-shaped structure, correspondingly, the assembly groove 44 is a groove provided on the side of the protective member 40 facing the battery cell group 20, and the groove is a structure extending along the second direction Y and passing through both ends of the protective member 40.

[0223] In this embodiment, the protective member 40 includes a plurality of abutting portions 43 arranged at intervals along the second direction Y, each abutting portion 43 correspondingly abuts against a battery cell group 20, and an avoidance groove 41 for inserting the heat management component 30 is formed between each two adjacent abutting portions 43, so that when the battery 100 collides, the collision force exerted on the first wall 114 can be distributed to the plurality of battery cell groups 20 through the plurality of abutting portions 43, so as to reduce the phenomenon that the thermal management component 30 is subjected to external force impact. In particular, by providing a receiving groove 4312 on one side of the abutting portion 43 abutting against the battery cell group 20 along the first direction X, and the receiving groove 4312 is a structure that penetrates the abutting portion 43 along the second direction Y, so that the receiving grooves 4312 of the plurality of abutting portions 43 jointly form an assembly groove 44 for accommodating the delivery pipe 60, thereby enabling the protective member 40 to provide better protection for both the thermal management component 30 and the delivery pipe 60, with a simple structure and easy manufacturing and assembly.

[0224] According to some embodiments of the present application, see Figure 3 and Figure 4 As shown, the housing 10 has two opposing first walls 114 along a first direction X, with the plurality of battery cell groups 20 located between the two first walls 114. The battery 100 includes two protective members 40, which are disposed opposite each other along the first direction X and are respectively located between the two first walls 114 and the plurality of battery cell groups 20.

[0225] The two protection members 40 are disposed opposite to each other along the first direction X, that is, the two protection members 40 are mirror-symmetrical structures and are respectively disposed on both sides of the plurality of battery cell groups 20 .

[0226] It should be noted that, in the embodiment where the battery 100 includes two delivery pipes 60 and two main pipes 70 , each delivery pipe 60 and each main pipe 70 is assembled to a corresponding protective member 40 .

[0227] In this embodiment, the box body 10 has two first walls 114 arranged opposite to each other in the first direction X. The two first walls 114 are respectively located on both sides of the multiple battery cell groups 20 in the first direction X, and a protective member 40 is provided between each first wall 114 and the multiple battery cell groups 20. Therefore, the two protective members 40 can protect both ends of the thermal management component 30 in the first direction X, which is conducive to further improving the protective effect of the thermal management component 30, thereby reducing the phenomenon that the collision force generated on the two first walls 114 on both sides of the box body 10 in the first direction X directly acts on the thermal management component 30, thereby further alleviating the deformation or damage of the thermal management component 30 due to collision or impact, and further reducing the risk of leakage of the thermal management component 30 during use, thereby further improving the reliability and service life of the battery 100.

[0228] According to some embodiments of the present application, the present application further provides an electrical device, which includes the battery 100 of any of the above solutions, and the battery 100 is used to provide electrical energy to the electrical device.

[0229] The power-consuming device may be any of the aforementioned devices or systems using the battery 100 .

[0230] According to some embodiments of the present application, see Figures 2 to 14As shown, the present application provides a battery 100, which includes a housing 10, a plurality of battery cell groups 20, a plurality of thermal management components 30, two delivery pipes 60, two main pipes 70, a plurality of connecting pipes 80, and two protective members 40. The housing 10 includes a housing body 11 and a cover 12. The housing body 11 defines a receiving cavity 112 having an opening 111 therein. The opening 111 is provided on one side of the housing body 11 in a third direction Z. The housing body 11 has two first walls 114 disposed opposite each other in a first direction X. The cover 12 covers the opening 111. A plurality of battery cell groups 20 are spaced apart within the receiving cavity 112 along a second direction Y. Each battery cell group 20 includes a plurality of battery cells 21 arranged along the first direction X. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. Multiple thermal management components 30 are spaced apart within the accommodating cavity 112 along the second direction Y. A thermal management component 30 is disposed between each pair of adjacent battery cell groups 20. The thermal management component 30 is configured to exchange heat with the battery cells 21. Along the first direction X, the ends of the thermal management components 30 extend beyond the sides of the multiple battery cell groups 20. Two delivery pipes 60 are disposed along the first direction X on either side of the multiple battery cell groups 20, respectively. The delivery pipes 60 are located between the first wall 114 and the multiple battery cell groups 20. The delivery pipes 60 extend along the second direction Y, passing through the multiple thermal management components 30 and communicating with them. The delivery pipes 60 are configured to provide a heat exchange medium to the thermal management components 30. Two main conduits 70 are disposed on either side of the plurality of battery cell groups 20 along the first direction X, and are located between the first wall 114 and the plurality of battery cell groups 20. The main conduits 70 extend along the second direction Y. Multiple connecting pipes 80 are connected to each main conduit 70. The connecting pipes 80 are spaced apart along the second direction Y. The connecting pipes 80 connect the main conduits 70 with the delivery pipe 60, and the main conduits 70 are configured to supply heat exchange medium to the delivery pipe 60. Two protective members 40 are disposed opposite each other along the first direction X, and are located between the two first walls 114 and the plurality of battery cell groups 20, respectively. The protective members 40 are spaced apart from the first wall 114 in the first direction X. The protective member 40 includes a main body 42 and multiple abutting portions 43. The main body 42 is arranged between the first wall 114 and the multiple battery cell groups 20 along the first direction X. The multiple abutting portions 43 are arranged at intervals along the second direction Y on the side of the main body 42 facing the battery cell group 20. Each abutting portion 43 abuts against a battery cell group 20 along the first direction X and is adhered to the battery cell group 20, and an avoidance groove 41 is formed between each two adjacent abutting portions 43. Along the first direction X, one end of the thermal management component 30 is arranged in the avoidance groove 41, and the thermal management component 30 is spaced apart from the main body 42.The abutting portion 43 includes a first portion 431 and a second portion 432. The first portion 431 abuts the corresponding battery cell group 20 along the first direction X. The first portion 431 has a first surface 4311 that abuts the battery cell group 20. The first surface 4311 is provided with a receiving groove 4312. The receiving groove 4312 extends along the second direction Y through the side surfaces of the first portion 431 on opposite sides in the second direction Y. The receiving grooves 4312 of the first portions 431 of the abutting portion 43 collectively form an assembly groove 44. The delivery tube 60 is received within the assembly groove 44. The main conduit 70 is located on the side of the first portion 431 that faces the tank cover 12 in the third direction Z. Along the first direction X, the depth of the receiving groove 4312 is greater than the outer diameter of the delivery tube 60. The first surface 4311 is connected to the groove side surface 4312a of the receiving groove via an arcuate surface 4313. The second portion 432 is connected to a side of the first portion 431 facing away from the cover 12 in the third direction Z. The second portion 432 extends away from the first portion 431 along the third direction Z and abuts the battery cell stack 20 along the first direction X. The second portion 432 has a second surface 4321 that abuts the battery cell stack 20, and the second surface 4321 is coplanar with the first surface 4311. The plurality of abutting portions 43 include a first abutting portion 433, which further includes a third portion 4331 and a reinforcing portion 45. The third portion 4331 is connected to a side of the first portion 431 facing the main conduit 70 in the third direction Z. The third portion 4331 extends away from the first portion 431 along the third direction Z and abuts the battery cell stack 20 along the first direction X. The third portion 4331 has a third surface 4331a that abuts the battery cell stack 20, and the third surface 4331a is coplanar with the first surface 4311. The reinforcement portion 45 connects the third portions 4331 of at least two of the first abutting portions 433 and is connected to one end of the third portion 4331 that is distal from the first portion 431 in the third direction Z. Along the first direction X, the main conduit 70 is located between the first wall 114 and the third portion 4331, and the minimum distance between the first wall 114 and the third portion 4331 is greater than the outer diameter of the main conduit 70. The plurality of abutting portions 43 further include a second abutting portion 434. Along the third direction Z, a receiving groove 4312 of the second abutting portion 434 extends through the side of the first portion 431 of the second abutting portion 434 facing the main conduit 70. The second abutting portion 434 corresponds one-to-one with the connecting pipe 80, and the connecting pipe 80 is disposed within the receiving groove 4312 of the second abutting portion 434.

[0231] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0232] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A battery, characterized in that: include: The box has a first wall in a first direction; a plurality of battery cell groups, each contained in the box, the plurality of battery cell groups being arranged along a second direction, the battery cell group including at least one battery cell, the second direction intersecting the first direction; a heat management component, disposed between two adjacent battery cell groups along the second direction, the heat management component being configured to exchange heat with the battery cells; as well as A protective member is provided between the first wall and the plurality of battery cell groups along the first direction, and is used to transfer external force exerted on the first wall to the battery cell groups to protect the thermal management component.

2. The battery according to claim 1, characterized in that Along the first direction, the protection member abuts against the plurality of battery cell groups. A relief groove is provided on a side of the protection member facing the battery cell group, and one end of the thermal management component is disposed in the relief groove.

3. The battery according to claim 2, characterized in that The protective element comprises: a main body portion, disposed between the first wall and the plurality of battery cell groups along the first direction; A plurality of abutting portions are spaced apart along the second direction on a side of the main body facing the battery cell group. Each abutting portion abuts against one battery cell group along the first direction, and the avoidance groove is formed between every two adjacent abutting portions.

4. The battery according to claim 3, characterized in that Along the first direction, the heat management component is spaced apart from the main body.

5. The battery according to claim 3, characterized in that The contact portion is bonded to the corresponding battery cell group.

6. The battery according to any one of claims 3 to 5, characterized in that The battery includes a plurality of thermal management components spaced apart along the second direction, and the battery further includes: a delivery pipe, disposed between the first wall and the plurality of battery cell groups along the first direction, the delivery pipe extending along the second direction, the delivery pipe communicating with the plurality of thermal management components, and configured to provide a heat exchange medium to the thermal management components; In which, the abutting portion includes a first part, and along the first direction, the first part has a first surface abutting against the battery cell group, and the first surface is provided with a receiving groove, and the receiving groove passes through the side surfaces of the first part on both sides opposite to each other in the second direction along the second direction, and the conveying pipe is accommodated in the receiving groove.

7. The battery according to claim 6, characterized in that Along the first direction, the depth of the accommodating groove is greater than the outer diameter of the conveying pipe.

8. The battery according to claim 6, characterized in that The first surface is connected to the side surface of the accommodating groove through an arc surface.

9. The battery according to claim 6, characterized in that The abutting portion further includes: The second portion is connected to one side of the first portion in the third direction, the second portion extends along the third direction in a direction away from the first portion, and the second portion abuts against the battery cell group along the first direction, and the first direction, the second direction and the third direction are not coplanar and intersect with each other.

10. The battery according to claim 9, characterized in that The plurality of abutting portions include a first abutting portion, and the first abutting portion further includes: The third portion is connected to a side of the first portion in the third direction away from the second portion, extends along the third direction away from the first portion, and abuts against the battery cell group in the first direction.

11. The battery according to claim 10, characterized in that The protective element further comprises: The reinforcing portion connects the third portions of at least two of the first abutting portions.

12. The battery according to claim 11, characterized in that Along the third direction, the reinforcement portion is connected to an end of the third portion away from the first portion.

13. The battery according to claim 11, characterized in that The box includes: A box body, wherein a receiving cavity with an opening is formed inside, the receiving cavity is used to receive the plurality of battery cell groups, the opening is provided on one side of the box body in the third direction, and the box body has the first wall in the first direction; a box cover, covering the opening; Wherein, along the third direction, the third part is connected to a side of the first part facing the box cover.

14. The battery according to claim 6, characterized in that The battery further comprises: a main conduit, disposed between the first wall and the plurality of battery cell groups along the first direction, and extending along the second direction; A plurality of connecting pipes are arranged at intervals along the second direction, and the connecting pipes connect the main pipe and the delivery pipe. The main pipe is configured to provide the heat exchange medium to the delivery pipe.

15. The battery according to claim 14, characterized in that Along the third direction, the main pipe is located on one side of the first portion, and the first direction, the second direction and the third direction are not coplanar and intersect with each other.

16. The battery according to claim 15, characterized in that The plurality of abutting portions include a first abutting portion, and the first abutting portion further includes: a third portion connected to a side of the first portion facing the main pipe in the third direction, the third portion extending along the third direction away from the first portion, and abutting against the battery cell group along the first direction; Wherein, along the first direction, the main pipe is located between the first wall and the third part.

17. The battery according to claim 16, characterized in that Along the first direction, a minimum distance between the first wall and the third portion is greater than an outer diameter of the main pipe.

18. The battery according to claim 15, characterized in that The multiple abutment portions also include a second abutment portion. Along the third direction, the accommodating groove of the second abutment portion passes through the first part of the second abutment portion facing the side of the main pipeline. The second abutment portion corresponds one-to-one to the connecting pipe, and the connecting pipe is arranged in the accommodating groove of the second abutment portion.

19. The battery according to claim 1, characterized in that Along the first direction, the protective element is spaced apart from the first wall.

20. The battery according to claim 1, characterized in that The battery further comprises: a delivery pipe, disposed along the first direction between the first wall and the plurality of battery cell groups, the delivery pipe extending along the second direction and communicating with the thermal management component, the delivery pipe being configured to provide a heat exchange medium to the thermal management component; The protective member is provided with an assembly groove on a side facing the battery cell group in the first direction, and the assembly groove penetrates the protective member along the second direction, and the delivery pipe is accommodated in the assembly groove.

21. The battery according to claim 1, characterized in that Along the first direction, the box has two opposite first walls, and the plurality of battery cell groups are located between the two first walls; Wherein, the battery includes two protective members, the two protective members are arranged opposite to each other along the first direction, and the two protective members are respectively located between the two first walls and the plurality of battery cell groups.

22. An electrical device, characterized in that: The invention comprises a battery according to any one of claims 1 to 21, wherein the battery is used to provide electrical energy.

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