WO2018099352A1 - 电池组件及电池模组 - Google Patents

电池组件及电池模组 Download PDF

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Publication number
WO2018099352A1
WO2018099352A1 PCT/CN2017/113176 CN2017113176W WO2018099352A1 WO 2018099352 A1 WO2018099352 A1 WO 2018099352A1 CN 2017113176 W CN2017113176 W CN 2017113176W WO 2018099352 A1 WO2018099352 A1 WO 2018099352A1
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WO
WIPO (PCT)
Prior art keywords
heat dissipation
battery
frame
heat
dissipation plate
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Application number
PCT/CN2017/113176
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English (en)
French (fr)
Inventor
张上富
黄银成
钱木
牛少军
田丰
余凯勤
Original Assignee
宁德时代新能源科技股份有限公司
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Publication of WO2018099352A1 publication Critical patent/WO2018099352A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the technical field of battery structures, and in particular, to a battery assembly and a battery module.
  • the battery module in the conventional technology mainly includes a battery assembly including a battery and a fixing bracket.
  • the fixing bracket includes a frame and a heat dissipation plate, and the frame and the heat dissipation plate are separately processed and then fixed together.
  • such an assembly method may cause a large assembly error of the frame and the heat sink, and thus the heat dissipation effect of the battery module is not satisfactory.
  • the application provides a battery assembly and a battery module to improve the heat dissipation effect of the battery module.
  • a first aspect of the present application provides a battery assembly including a battery and a fixing bracket, the battery being mounted on the fixing bracket, the fixing bracket including a frame and a heat dissipation plate, the frame being integrated with the heat dissipation plate Forming, the heat sink includes a first portion located inside the frame, and a second portion exposed relative to the frame, the first portion being fixedly coupled to the second portion, the second portion being along The battery extends in the thickness direction.
  • an outer surface of the frame extending along a thickness direction of the battery is a heat dissipation contact surface, and a groove is formed on the heat dissipation contact surface, and the groove extends to the second portion.
  • the groove extends along an intersection of the second portion and the heat dissipation contact surface, and opposite ends of the groove penetrate to an edge of the heat dissipation contact surface.
  • the second portion is higher than the heat dissipation contact surface in a height direction of the battery assembly.
  • the plurality of heat dissipation plates are, wherein a first portion of one of the heat dissipation plates is in contact with a first portion of another of the heat dissipation plates, and the one of the heat dissipation plates is in contact with the first portion of the heat dissipation plate.
  • the second portion of the hot plate extends in opposite directions from the second portion of the other of the heat sink plates.
  • a first portion of the one of the heat dissipation plates includes a first protrusion
  • a first portion of the other of the heat dissipation plates includes a second protrusion
  • the first The convex direction of the convex portion is opposite to the convex direction of the second convex portion.
  • a space is formed between the first protrusion and the second protrusion.
  • a second aspect of the present application provides a battery module including a housing and a plurality of battery assemblies mounted in the housing, the battery assembly being the battery assembly of any of the above.
  • a thermal pad disposed between two adjacent battery modules is further included.
  • the insulating mat is a foam.
  • the frame and the heat dissipation plate are integrally formed, and the arrangement can avoid the problem that the heat dissipation effect is not satisfactory after the assembly error between the frame and the heat dissipation plate. Therefore, the heat dissipation effect of the battery pack is better.
  • FIG. 1 is an exploded view of a battery assembly according to an embodiment of the present application.
  • FIG. 2 is a schematic structural view of a fixing bracket provided by an embodiment of the present application.
  • FIG. 3 is an exploded view of a fixing bracket provided by an embodiment of the present application.
  • FIG. 4 is a front view of a battery assembly according to an embodiment of the present application.
  • Figure 5 is a cross-sectional view taken along line A-A of Figure 4.
  • Figure 6 is an enlarged view of a portion B of Figure 5;
  • FIG. 7 is a schematic structural diagram of another fixing bracket provided by an embodiment of the present application.
  • Figure 8 is an exploded view of the structure shown in Figure 7;
  • FIG. 9 is a schematic structural diagram of still another fixing bracket provided by an embodiment of the present application.
  • Figure 10 is an exploded view of the structure shown in Figure 9;
  • FIG. 11 is a schematic diagram of a plurality of battery components according to an embodiment of the present application.
  • Figure 12 is an exploded view of the structure shown in Figure 11;
  • Figure 13 is a plan view of the structure shown in Figure 11;
  • Figure 14 is a cross-sectional view taken along line A-A of the structure shown in Figure 13 when an insulating cotton is used;
  • Figure 15 is an enlarged view of a portion C of Figure 14;
  • Figure 16 is a cross-sectional view taken along line A-A of the structure shown in Figure 13 when foam is used;
  • Fig. 17 is an enlarged view of a portion D of Fig. 16;
  • the embodiment of the present application provides a battery assembly including a battery 10 and a fixing bracket 20.
  • the battery 10 can be mounted on the fixing bracket 20 by double-sided tape or structural adhesive.
  • the fixing bracket 20 may include a frame 200 and a heat dissipation plate 201 integrally formed with the heat dissipation plate 201.
  • the heat dissipation plate 201 includes a first portion 201a located inside the frame 200, and a second portion 201b exposed with respect to the frame 200. A portion 201a is fixedly coupled to the second portion 201b, and the second portion 201b extends in the thickness direction of the battery 10.
  • the frame 200 is integrally formed with the heat dissipation plate 201.
  • This arrangement can avoid the problem that the heat dissipation effect is not satisfactory after the assembly error between the frame 200 and the heat dissipation plate 201 is present. Therefore, the heat dissipation effect of the battery pack is better.
  • the arrangement of the frame 200 and the heat sink 201 integrally formed can better ensure the overall strength of the fixing bracket 20.
  • the second portion 201b of the heat dissipation plate 201 is exposed, so that the heat can be better dissipated through the second portion 201b, and the heat dissipation effect of the battery assembly can be improved.
  • the thermal contact surface between the fixing bracket 20 and other portions has greater strength and flatness, It can ensure the effective heat dissipation of the entire battery assembly.
  • the frame 200 is made of a plastic material, and the heat dissipation plate 201 can be made of an aluminum plate.
  • the outer surface of the frame 200 extending along the thickness direction of the battery 10 is a heat dissipation contact surface, and the heat dissipation A groove 200a is formed in the contact surface, and the groove 200a extends to the second portion 201b, that is, a side of the groove 200a extending to the second portion 201b is an open structure.
  • the groove 200a extends along the junction of the second portion 201b and the heat dissipation contact surface, and the opposite ends of the groove 200a penetrate to the edge of the heat dissipation contact surface.
  • the groove 200a is a U-shaped groove, thereby increasing the effective area of the groove 200a, thereby reinforcing the aforementioned technical effects.
  • the second portion 201b is higher than the heat dissipation contact surface of the frame 200 in the height direction of the battery assembly.
  • the heat dissipation plate 201 protrudes relative to the frame 200, which not only helps to determine whether the heat dissipation plate 201 is in reliable contact with other parts, but also ensures the force between the heat dissipation plate 201 and other parts to ensure better protection.
  • the heat dissipation area of the heat dissipation plate 201 is not only helps to determine whether the heat dissipation plate 201 is in reliable contact with other parts, but also ensures the force between the heat dissipation plate 201 and other parts to ensure better protection.
  • the heat dissipation plates 201 may be provided in one or a plurality of heat dissipation plates 201. After the heat dissipation plates 201 are disposed in plurality, the heat dissipation plates 201 can provide a larger heat dissipation area, thereby enhancing the heat dissipation effect.
  • the first portion 201a of one of the heat dissipation plates 201 is in contact with the first portion 201a of the other heat dissipation plate 201, and the second portion 201b of one of the aforementioned heat dissipation plates 201
  • the second portion 201b of the other heat dissipation plate 201 extends in the opposite direction.
  • the heat dissipation plate 201 may be disposed in two.
  • the two heat dissipation plates 201 are a first heat dissipation plate 201c and a second heat dissipation plate 201d, respectively, and the first portion 201a of the first heat dissipation plate 201c and the first portion
  • the first portion 201a of the second heat dissipation plate 201d is in contact, and the second portion 201b of the first heat dissipation plate 201c and the second portion 201b of the second heat dissipation plate 201d extend in opposite directions.
  • the heat dissipation plates 201 when the heat dissipation plates 201 are provided in plurality, the heat dissipation plates 201 can be divided into two groups as a whole, and the two heat dissipation plates 201 are disposed away from each other such that the heat dissipation plates 201 can be compactly mounted in the frame 200.
  • the first part of one of the heat dissipation plates 201 is packaged
  • the first protruding portion is included
  • the first portion of the other heat dissipation plate 201 includes a second protruding portion
  • the protruding direction of the first protruding portion is opposite to the protruding direction of the second protruding portion.
  • the first protruding portion and the second protruding portion can apply a force to the battery, thereby realizing pre-fixing of the battery, thereby enhancing the structural strength of the battery module.
  • the first protruding portion and the second protruding portion may or may not be in contact with each other.
  • a space will be formed between the first protruding portion and the second protruding portion.
  • the space here can provide space for the expansion of the cell, thereby releasing the expansion force of the cell, making the housing of the battery module less susceptible to the expansion force of the cell.
  • the embodiment of the present application further provides a battery module including a housing and a plurality of battery assemblies mounted in the housing, the battery assembly being the battery assembly described in any of the above embodiments.
  • the battery module may further include a heat insulating pad 30 disposed between the adjacent two battery components.
  • the heat insulating mat 30 can adopt the heat insulating cotton as shown in FIG. 14 and FIG. 15 , and the heat insulating cotton can have the effect of thermal runaway protection, but the heat insulating cotton usually has a large hardness, so the insulating cotton is installed. After being between the battery components, the heat insulating cotton itself occupies a large space, resulting in an increase in the expansion force of the battery module.
  • the heat insulating mat 30 can be provided as a foam as shown in FIGS. 16 and 17. The foam has the advantages of being easily compressed, light, and resistant to high temperatures.
  • the first protruding portion or the second protruding portion when the first protruding portion or the second protruding portion is disposed on the heat dissipation plate 201 of the battery assembly, the first protruding portion or the second protruding portion can apply a pressing force to the foam, so that the foam is generated.
  • the anti-deformation force provides anti-vibration protection for the battery.
  • a pressing force is further applied to the foam, and a pressing force is applied to the first protruding portion or the second protruding portion of the heat dissipation plate 201 to release the expansion force of the battery module, thereby maximizing Limit the expansion force of the battery module to increase the mechanical strength of the battery module.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

一种电池组件及电池模组，电池组件包括电池（10）和固定支架（20），所述电池（10）安装于所述固定支架（20）上，所述固定支架（20）包括框架（200）和散热板（201），所述框架（200）与所述散热板（201）一体成型设置，所述散热板（201）包括位于所述框架（200）内部的第一部分（201a），以及相对于所述框架（200）外露的第二部分（201b），所述第一部分（201a）与所述第二部分（201b）固定连接，所述第二部分（201b）沿着所述电池（10）的厚度方向延伸。在电池组件中，框架（200）与散热板（201）一体成型设置，此种设置方式可以避免框架（200）与散热板（201）之间存在装配误差以后，导致的散热效果不理想的问题。因此，该电池组件的散热效果更好。

Description

电池组件及电池模组 技术领域
本申请涉及电池结构技术领域，尤其涉及一种电池组件及电池模组。
背景技术
随着新能源技术的不断推广，采用电池模组作为能源已经成为比较常见的方式。传统技术中的电池模组主要包括电池组件，电池组件包括电池、和固定支架，固定支架包括框架和散热板，框架与散热板单独加工后再固定到一起。但是，此种装配方式会导致框架和散热板的装配误差较大，进而致使电池模组的散热效果并不理想。
发明内容
本申请提供了一种电池组件及电池模组，以提高电池模组的散热效果。
本申请的第一方面提供了一种电池组件，其包括电池和固定支架，所述电池安装于所述固定支架上，所述固定支架包括框架和散热板，所述框架与所述散热板一体成型设置，所述散热板包括位于所述框架内部的第一部分，以及相对于所述框架外露的第二部分，所述第一部分与所述第二部分固定连接，所述第二部分沿着所述电池的厚度方向延伸。
优选地，所述框架上沿所述电池的厚度方向延伸的外表面为散热接触面，所述散热接触面上开设凹槽，所述凹槽延伸至所述第二部分处。
优选地，所述凹槽沿着所述第二部分与所述散热接触面的相接处延伸，且所述凹槽的相对两端均贯通至所述散热接触面的边缘。
优选地，在所述电池组件的高度方向上，所述第二部分高于所述散热接触面。
优选地，所述散热板为多个，各所述散热板中，其中一个所述散热板的第一部分与另一个所述散热板的第一部分相接触，所述其中一个所述散 热板的第二部分与所述另一个所述散热板的第二部分沿着相反的方向延伸。
优选地，各所述散热板中，所述其中一个所述散热板的第一部分包括第一凸出部，所述另一个所述散热板的第一部分包括第二凸出部，所述第一凸出部的凸出方向和所述第二凸出部的凸出方向相反。
优选地，所述第一凸出部与所述第二凸出部之间形成间隔空间。
本申请的第二方面提供了一种电池模组，其包括壳体和安装于所述壳体内的多个电池组件，所述电池组件为上述任一项所述的电池组件。
优选地，还包括设置于相邻的两个所述电池组件之间的隔热垫。
优选地，所述隔热垫为泡棉。
本申请提供的技术方案可以达到以下有益效果：
本申请所提供的电池组件中，框架与散热板一体成型设置，此种设置方式可以避免框架与散热板之间存在装配误差以后，导致的散热效果不理想的问题。因此，该电池组件的散热效果更好。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本申请。
附图说明
图1为本申请实施例提供的电池组件的爆炸图；
图2为本申请实施例提供的固定支架的结构示意图；
图3为本申请实施例提供的固定支架的爆炸图；
图4为本申请实施例提供的电池组件的主视图；
图5为图4的A-A向剖视图；
图6为图5的B部分放大图；
图7为本申请实施例提供的另一固定支架的结构示意图；
图8为图7所示结构的爆炸图；
图9为本申请实施例提供的又一固定支架的结构示意图；
图10为图9所示结构的爆炸图；
图11为本申请实施例提供的多个电池组件叠加后的示意图；
图12为图11所示结构的爆炸图；
图13为图11所示结构的俯视图；
图14为采用隔热棉时图13所示结构的A-A向剖视图；
图15为图14的C部分放大图；
图16为采用泡棉时图13所示结构的A-A向剖视图；
图17为图16的D部分放大图。
附图标记：
10-电池；
20-固定支架；
200-框架，200a-凹槽，201-散热板，201a-第一部分，201b-第二部分，201c-第一散热板，201d-第二散热板；
30-隔热垫。
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本申请的实施例，并与说明书一起用于解释本申请的原理。
具体实施方式
下面通过具体的实施例并结合附图对本申请做进一步的详细描述。需要说明的是，下文中的“厚度方向”、“高度方向”均以图中所示状态为参照。
如图1-17所示，本申请实施例提供了一种电池组件，其包括电池10和固定支架20，电池10可以通过双面胶或者结构胶等安装于固定支架20上。该固定支架20可包括框架200和散热板201，框架200与散热板201一体成型设置，散热板201包括位于框架200内部的第一部分201a，以及相对于框架200外露的第二部分201b，此第一部分201a与第二部分201b固定连接，第二部分201b沿着电池10的厚度方向延伸。
上述电池组件中，框架200与散热板201一体成型设置，此种设置方式可以避免框架200与散热板201之间存在装配误差以后，导致的散热效果不理想的问题。因此，该电池组件的散热效果更好。同时，框架200与散热板201一体成型的设置方式，还可以更好地保证固定支架20的整体强度。而散热板201的第二部分201b外露，因此可以通过该第二部分201b更好地将热量散出，同样可以提升电池组件的散热效果。
另外，采用上述的一体设置方式之后，由于固定支架20的结构强度大大增加，因此电池模组装配后，固定支架20与其他部分之间的热接触面上具有较大的强度及平整性，也能够保证整个电池组件的有效散热。
通常，框架200采用塑胶材料，散热板201可以采用铝板。在制造框架200时，为了便于框架200的注塑成型，同时便于散热板201的固定和封胶，可以采用如下设置：框架200上沿电池10的厚度方向延伸的外表面为散热接触面，该散热接触面上开设凹槽200a，该凹槽200a延伸至第二部分201b处，即，凹槽200a延伸至第二部分201b的一侧为开口结构。进一步地，凹槽200a沿着第二部分201b与散热接触面的相接处延伸，且凹槽200a的相对两端均贯通至散热接触面的边缘。此时，凹槽200a为U形槽，以此增加凹槽200a的作用面积，进而强化前述的技术效果。
为了保证散热板201可以可靠地与其他部分接触以实现散热，在电池组件的高度方向上，第二部分201b高于框架200的散热接触面。采用此种结构后，散热板201相对于框架200凸出，不仅有利于确定散热板201与其他部分是否可靠接触，还可以通过控制散热板201与其他部分之间的作用力，较好地保证散热板201的散热面积。
上述散热板201可以设置为一个，也可以设置为多个，将散热板201设置为多个后，各散热板201能够提供更大的散热面积，进而强化散热效果。当散热板201设置为多个时，各散热板201中，其中一个散热板201的第一部分201a与另一个散热板201的第一部分201a相接触，前述的其中一个散热板201的第二部分201b与另一个散热板201的第二部分201b沿着相反的方向延伸。
例如，如图7-10所示，散热板201可以设置为两个，这两个散热板201分别为第一散热板201c和第二散热板201d，第一散热板201c的第一部分201a与第二散热板201d的第一部分201a相接触，第一散热板201c的第二部分201b与第二散热板201d的第二部分201b沿着相反的方向延伸。也就是说，当散热板201设置为多个时，各散热板201整体可分为两组，此两组散热板201相背离地设置，使得各散热板201可以紧凑地安装于框架200中。
进一步地，上述各散热板201中，其中一个散热板201的第一部分包 括第一凸出部，另一个散热板201的第一部分包括第二凸出部，该第一凸出部的凸出方向和第二凸出部的凸出方向相反。此处的第一凸出部和第二凸出部可以向电池施加作用力，以此实现电池的预固定，进而增强电池模组的结构强度。具体地，各散热板201安装完成后，第一凸出部和第二凸出部可以贴合在一起，也可以不接触。当第一凸出部与第二凸出部不接触时，第一凸出部与第二凸出部之间将形成一间隔空间。此处的间隔空间可以为电芯的膨胀提供空间，以此释放电芯的膨胀力，使得电池模组的壳体更不容易受到电芯膨胀力的影响。
基于上述结构，本申请实施例还提供一种电池模组，该电池模组包括壳体和安装于该壳体内的多个电池组件，该电池组件为上述任一实施例所描述的电池组件。
为了缓解各电池组件之间的热量干扰，上述电池模组还可以包括隔热垫30，该隔热垫30设置于相邻的两个电池组件之间。此隔热垫30可以采用如图14和图15所示的隔热棉，该隔热棉可以起到热失控保护的效果，但是隔热棉通常具有较大的硬度，因此将隔热棉安装于电池组件之间后，隔热棉本身会占据较大的空间，导致电池模组的膨胀力增加。为了缓解这一问题，可以将隔热垫30设置为如图16和图17所示的泡棉。该泡棉具有容易被压缩、轻、耐高温等优点。尤其当电池组件的散热板201上设置前述的第一凸出部或者第二凸出部时，第一凸出部或者第二凸出部可以对泡棉施加挤压力，使得泡棉产生一定的抗变形作用力，进而对电池起到防振保护作用。同时，当电池出现热膨胀后，对泡棉进一步施加挤压力，并对散热板201的第一凸出部或者第二凸出部施加挤压力，释放电池模组的膨胀力，以此最大限度地释放电池模组的膨胀力，提高电池模组的机械强度。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种电池组件，其特征在于，包括电池和固定支架，所述电池安装于所述固定支架上，所述固定支架包括框架和散热板，所述框架与所述散热板一体成型设置，所述散热板包括位于所述框架内部的第一部分，以及相对于所述框架外露的第二部分，所述第一部分与所述第二部分固定连接，所述第二部分沿着所述电池的厚度方向延伸。
  2. 根据权利要求1所述的电池组件，其特征在于，所述框架上沿所述电池的厚度方向延伸的外表面为散热接触面，所述散热接触面上开设凹槽，所述凹槽延伸至所述第二部分处。
  3. 根据权利要求2所述的电池组件，其特征在于，所述凹槽沿着所述第二部分与所述散热接触面的相接处延伸，且所述凹槽的相对两端均贯通至所述散热接触面的边缘。
  4. 根据权利要求2所述的电池组件，其特征在于，在所述电池组件的高度方向上，所述第二部分高于所述散热接触面。
  5. 根据权利要求1所述的电池组件，其特征在于，所述散热板为多个，各所述散热板中，其中一个所述散热板的第一部分与另一个所述散热板的第一部分相接触，所述其中一个所述散热板的第二部分与所述另一个所述散热板的第二部分沿着相反的方向延伸。
  6. 根据权利要求5所述的电池组件，其特征在于，各所述散热板中，所述其中一个所述散热板的第一部分包括第一凸出部，所述另一个所述散热板的第一部分包括第二凸出部，所述第一凸出部的凸出方向和所述第二凸出部的凸出方向相反。
  7. 根据权利要求6所述的电池组件，其特征在于，所述第一凸出部与所述第二凸出部之间形成间隔空间。
  8. 一种电池模组，其特征在于，包括壳体和安装于所述壳体内的多个电池组件，所述电池组件为权利要求1-7中任一项所述的电池组件。
  9. 根据权利要求8所述的电池模组，其特征在于，还包括设置于相邻的两个所述电池组件之间的隔热垫。
  10. 根据权利要求9所述的电池模组，其特征在于，所述隔热垫为泡棉。
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