WO2019134701A1 - Battery cell, battery module and automobile - Google Patents

Battery cell, battery module and automobile Download PDF

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Publication number
WO2019134701A1
WO2019134701A1 PCT/CN2019/070665 CN2019070665W WO2019134701A1 WO 2019134701 A1 WO2019134701 A1 WO 2019134701A1 CN 2019070665 W CN2019070665 W CN 2019070665W WO 2019134701 A1 WO2019134701 A1 WO 2019134701A1
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WO
WIPO (PCT)
Prior art keywords
pole
expansion
battery unit
plate member
plates
Prior art date
Application number
PCT/CN2019/070665
Other languages
French (fr)
Chinese (zh)
Inventor
何龙
沈晞
江文锋
蒋露霞
胡世超
Original Assignee
比亚迪股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201810476328.9A external-priority patent/CN110021779A/en
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Publication of WO2019134701A1 publication Critical patent/WO2019134701A1/en

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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
    • H01M10/04—Construction or manufacture in general
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present application relates to the field of batteries, and relates to a battery unit, a battery module, and an automobile.
  • the battery includes a casing and a pole core disposed in the casing.
  • the volume of the battery unit determines the volume of the core core to a certain extent, and is an important determinant of the battery capacity.
  • the installation environment of the battery is basically determined. With the size of the space occupied by the battery, the overall volume of the battery is difficult to increase without limitation, and the capacity of the battery is also limited.
  • the present application provides a battery unit, wherein the battery unit includes a casing, a cover plate, a pole, and a pole core, the casing having an opening through which the opening is closed.
  • the pole is electrically connected to the pole core and extends through the cover plate
  • the pole core includes a pole core body having a expansion end
  • the expansion end is provided with a pole fitting region and is adapted to the pole a expansion area protruding along a protruding direction of the pole
  • the pole fitting area is recessed relative to the expansion area to form a pole mounting space
  • the pole is at least partially disposed at the pole
  • the cover plate includes a plurality of plate members sequentially connected in the longitudinal direction
  • the plurality of the plate members includes a first plate member covering the top surface of the expansion region, covering the pole fitting region a second plate member and a third plate member connecting the first plate member and the second plate member.
  • the outer casing includes a plurality of side plates, and the side plates and the first and third plates enclose a expansion chamber that accommodates the expansion area.
  • the expansion end is provided with one of the pole fitting regions located in the middle and two expansion zones respectively located at two sides of the pole fitting region, the second plate Both ends of the piece in the length direction are respectively connected to the two first plates by the third plate member.
  • the expansion end is provided with one of the expansion area in the middle and two pole fitting areas respectively located on two sides of the expansion area, the length of the first plate along the length Two ends of the direction are respectively connected to the two second plates by two of the third plates.
  • the two of the second panels are coplanar.
  • the expansion end is provided with three said expansion areas and two of the pole alignment areas, and one of the two adjacent expansion areas is provided with the pole alignment
  • the cover plate is provided with three first plate members, two second plate members and four third plate members, and one adjacent one of the two adjacent first plate members is disposed The second plate.
  • the pole is coupled to the pole core body and extends through the second panel.
  • the pole core includes a tab attached to the pole core body, the tab being coupled to the pole.
  • the battery unit includes an inner lead piece disposed on an inner surface of the cover plate, the pole is connected to the inner lead piece, and the pole is connected to the inner lead piece through the inner lead piece The tabs.
  • the present application also provides a battery module, wherein the battery module includes the battery unit described in the above scheme.
  • the present application also provides an automobile, wherein the automobile includes at least one battery module described in the above aspect.
  • a pole fitting region corresponding to the pole column and a expansion region protruding relative to the pole fitting region are respectively disposed, thereby increasing in a limited space near the pole column.
  • the volume of the pole core body increases the battery capacity, and the cover plate is formed in a multi-stage structure that matches the expansion end of the pole core body, simplifying the structure.
  • FIG. 1 is a perspective view of a battery unit according to an embodiment of the present application.
  • FIG. 2 is an exploded view of a battery unit according to an embodiment of the present application, in which a pole core is not shown;
  • FIG. 3 is a perspective view of a cover plate according to an embodiment of the present application.
  • FIG. 4 is a perspective view of a polar core according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a battery module according to an embodiment of the present application.
  • Fig. 6 is a schematic view of a car according to an embodiment of the present application.
  • the present application provides a battery unit 100, wherein the battery unit 100 includes a housing 3, a cover plate 4, a pole 5 and a pole core, the housing 3 having an opening 32 through which the opening 32 passes a cover, the pole 5 is electrically connected to the pole core and extends through the cover plate 4, the pole core comprises a pole core body 1 having a expansion end 11, and the expansion end 11 is provided with a pole a distribution area 112 and a expansion area 111 protruding along the protruding direction of the pole 5 with respect to the pole fitting area 112, the pole fitting area 112 is recessed with respect to the expansion area 111 to form a pole a column mounting space, the pole 5 is at least partially disposed in the pole mounting space, the cover plate 4 includes a plurality of plates sequentially connected in a length direction, and the plurality of the plates includes covering the expansion a first plate member 41 of a top surface of the region 111, a second plate member 42 covering the pole fitting region 112, and a third plate member 43 connecting the first plate member 41 and
  • the cover 4 and the outer casing 3 together form a housing that houses the pole core, wherein the cover 4 is used to mount the pole 5.
  • the pole core includes a pole core body 1 .
  • One end of the pole core body 1 is a expansion end 11
  • the expansion end 11 is provided with a pole fitting area 112 and a expansion area 111 .
  • the expansion area 111 is convex with respect to the pole fitting area 112 .
  • the space formed by the pole fitting region 112 recessed from the expansion region 111 is a pole mounting space, and at least a portion of the pole 5 is located in the pole mounting space.
  • the cover plate 4 for mounting the pole 5 is also formed substantially in a shape corresponding to the expansion end 11, as shown in FIG. 1, FIG. 2, FIG. a plurality of panels in the longitudinal direction, wherein the first panel 41 can be used to cover the top surface of the expansion area 111, and the second panel 42 is used to cover the pole fitting area 112, due to the expansion area 111 and the pole fitting area
  • the 112 has a height drop and is provided with a third plate member 43 connecting the first plate member 41 and the second plate member 42.
  • the multi-segment structure of the cover plate 4 is relatively simple and convenient for processing.
  • the expansion end 11 is provided with one of the pole fitting regions 112 located in the middle and two expansion regions 111 respectively located at two sides of the pole fitting region. Both ends of the second plate member 42 in the longitudinal direction are respectively connected to the two first plate members 41 through the third plate member 43.
  • the expansion end 11 is provided with a pole fitting area 112 and two expansion areas 111.
  • the cover plate 4 is provided with a second plate member 42 and two first plates 41, and passes through two third plates. 43 connects the two first plates 41 to both ends of the second plate member 42, so that the shape of the cover plate 4 corresponds to the shape of the expansion end 11.
  • the expansion end 11 is provided with one of the expansion area 111 located in the middle and two pole alignment areas 112 respectively located on opposite sides of the expansion area 111, Two ends of a plate member 41 in the longitudinal direction are respectively connected to the two second plate members 42 through the two third plate members 43.
  • the expansion area 111 is disposed at an intermediate position of the expansion end 11
  • a pole fitting area 112 is disposed on each side of the expansion area, and correspondingly, the cover 4 is disposed in the middle.
  • a plate member 41 and third plate members 43 on both sides, and two second plate members 42 are coupled to both ends of the first plate member 41 by two third plate members 43.
  • the two second panels 42 are coplanar.
  • the two second plates 42 correspond to the two pole fitting regions 112 of the pole core body 1, and the two pole fitting regions 112 are regions limited by the poles, the heights of which are the same, thus the two second plates 42 can be set to have the same height, ie coplanar settings.
  • the expansion end 11 is provided with three expansion regions 111 and two pole alignment regions 112, and a space between the two adjacent expansion regions 111 is disposed.
  • the pole fitting region 111 is provided with three first plates 41, two second plates 42 and four third plates 43 between the two adjacent first plates 41 A second plate member 42 is provided.
  • the expansion area 111 and the pole fitting area 112 are alternately arranged in a linear direction.
  • the cover plate 4 is provided with three first plates 41 and two second plates 42 disposed adjacent to each other. The two first plates 41 are alternately disposed, and the two ends of the second plate member 42 are respectively connected to the first plate member 41 through the third plate member 43.
  • the pole 5 is connected to the pole core body 1 and extends through the second plate 42.
  • the pole 5 extends through the second plate 42 to the outside for connection to an external electrical device.
  • the pole core comprises a tab 2 connected to the pole core body 1, the tab 2 being connected to the pole 5.
  • the pole core may comprise two tabs 2 respectively corresponding to the positive and negative poles, the tabs 2 being electrically connected to the pole core body 1, and the two poles 5 being respectively connected to the two tabs 2.
  • the battery unit 100 includes an inner lead piece 6 disposed inside the cover plate 4, the pole 5 is connected to the inner lead piece 6, and the pole 5 is connected to the inner lead piece 6 through the inner lead piece 6.
  • the tab 2 is.
  • the inner lead piece 6 is disposed on the inner side of the second plate member 42, and the pole piece 5 passes through the second plate member 42 to connect the inner lead piece 6, and is electrically connected to the tab 2 through the inner lead piece 6.
  • the tab 2 is disposed in the pole fitting region 112.
  • the tabs 2 can be connected to the pole fitting region 112 and all disposed in the pole fitting region 112, or can be connected to the expansion region 111 or other positions of the pole core body 1 and extend to the pole fitting region 112, so that Connected to the pole 5 .
  • the tab 2 is integrally formed with the pole core body 1.
  • the tab 2 and the pole core body 1 are integrally formed of a material made into a pole core, and the tab 2 includes two tabs as a positive electrode and a negative electrode.
  • the tab 2 can be additionally fabricated and attached to the pole core body 1.
  • the present application further provides an automobile 300, wherein the automobile 300 includes at least one battery module 200 described in the above scheme.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “below” the second feature may be the direct contact of the first and second features, or the first and second features are indirectly through the intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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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)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

A battery cell (100) comprises a housing (3), a cover plate (4), a terminal post (5) and an electrode core. The housing (3) comprises an opening (32) that is covered by the cover plate (4). The terminal post (5) is electrically connected to the electrode core and extends through the cover plate (4). The electrode core comprises an expansion end (11) provided with a terminal post fitting region (112) and an expansion region (111). The terminal post fitting region (112) is recessed with respect to the expansion region (111) to form a terminal post installation space. The terminal post (5) is at least partially disposed in the terminal post installation space. The cover plate (4) comprises a first plate member (41) covering a top surface of the expansion region (111), a second plate member (42) covering the terminal post fitting region (112) and a third plate member (43) connecting the first plate member (41) to the second plate member (42).

Description

电池单元、电池模组及汽车Battery unit, battery module and car
相关申请的交叉引用Cross-reference to related applications
本申请要求2018年1月8日递交的、申请号为201810015504.9、201810016060.0、201810015506.8、201810016052.6、201810015502.X、201810016520.X、201810015503.4、201810016056.4的中国专利申请的优先权；本申请要求2018年5月17日递交的、申请号为201810476328.9的中国专利申请的优先权。Priority is claimed on Chinese Patent Application No. 201810015504.9, No. 201810016060.0, No. 201810015506.8, 201810016052.6, 201810015502.X, 201810016520.X, 201810015503.4, 201810016056.4, filed on January 8, 2018; this application claims May 17, 2018 The priority of the Chinese patent application filed on the Japanese Patent Application No. 201810476328.9.
技术领域Technical field
本申请涉及电池领域，涉及一种电池单元、电池模组及汽车。The present application relates to the field of batteries, and relates to a battery unit, a battery module, and an automobile.
背景技术Background technique
随着科技的发展，各种电子设备、电动工具等得到广泛应用，例如手机、电动车辆等，作为核心部件，电池的性能对整体的性能及使用体验具有重要影响；其中，电池的容量决定了整体的续航，也是使用者的重要关注点。With the development of technology, various electronic devices, power tools, etc. are widely used, such as mobile phones, electric vehicles, etc. As a core component, the performance of the battery has an important impact on the overall performance and experience; among them, the capacity of the battery determines The overall battery life is also an important concern for users.
电池包括外壳和设置在外壳中的极芯，电池单元的体积从一定程度上决定了极芯的体积，是电池容量的重要决定因素，在电子设备、电动工具中，电池所在的安装环境基本决定了电池所占用的空间大小，电池的整体体积难以不受限制地增加，电池的容量因此也受到限制。The battery includes a casing and a pole core disposed in the casing. The volume of the battery unit determines the volume of the core core to a certain extent, and is an important determinant of the battery capacity. In electronic equipment and power tools, the installation environment of the battery is basically determined. With the size of the space occupied by the battery, the overall volume of the battery is difficult to increase without limitation, and the capacity of the battery is also limited.
申请内容Application content
本申请的目的是提供一种电池单元，以在存在空间限制的情况下增加电池容量。It is an object of the present application to provide a battery unit to increase battery capacity in the presence of space constraints.
为了实现上述目的，本申请提供了一种电池单元，其中，所述电池单元包括外壳、盖板、极柱以及极芯，所述外壳具有开口，所述开口通过所述盖板封盖，所述极柱与所述极芯电连接并延伸穿过所述盖板，所述极芯包括具有扩容端的极芯主体，所述扩容端设置有极柱适配区和相对于所述极柱适配区沿所述极柱的伸出方向凸出的扩容区，所述极柱适配区相对于所述扩容区凹陷而形成极柱安装空间，所述极柱至少部分地设置在所述极柱安装空间中，所述盖板包括沿长度方向依次连接的多个板件，多个所述板件包括覆盖所述扩容区的顶面的第一板件、覆盖所述极柱适配区的第二板件以及连接所述第一板件和所述第二板件的第三板件。In order to achieve the above object, the present application provides a battery unit, wherein the battery unit includes a casing, a cover plate, a pole, and a pole core, the casing having an opening through which the opening is closed. The pole is electrically connected to the pole core and extends through the cover plate, the pole core includes a pole core body having a expansion end, the expansion end is provided with a pole fitting region and is adapted to the pole a expansion area protruding along a protruding direction of the pole, the pole fitting area is recessed relative to the expansion area to form a pole mounting space, and the pole is at least partially disposed at the pole In the column installation space, the cover plate includes a plurality of plate members sequentially connected in the longitudinal direction, and the plurality of the plate members includes a first plate member covering the top surface of the expansion region, covering the pole fitting region a second plate member and a third plate member connecting the first plate member and the second plate member.
根据本申请的一些实施例，所述外壳包括多个侧板，所述侧板与所述第一板件、第三板 件围成容纳所述扩容区的扩容腔。According to some embodiments of the present application, the outer casing includes a plurality of side plates, and the side plates and the first and third plates enclose a expansion chamber that accommodates the expansion area.
根据本申请的一些实施例，所述扩容端设置有位于中间的一个所述极柱适配区和两个分别位于所述极柱适配区两侧的所述扩容区，所述第二板件沿长度方向的两端分别通过所述第三板件连接于两个所述第一板件。According to some embodiments of the present application, the expansion end is provided with one of the pole fitting regions located in the middle and two expansion zones respectively located at two sides of the pole fitting region, the second plate Both ends of the piece in the length direction are respectively connected to the two first plates by the third plate member.
根据本申请的一些实施例，所述扩容端设置有位于中间的一个所述扩容区和两个分别位于所述扩容区两侧的所述极柱适配区，所述第一板件沿长度方向的两端分别通过两个所述第三板件连接于两个所述第二板件。According to some embodiments of the present application, the expansion end is provided with one of the expansion area in the middle and two pole fitting areas respectively located on two sides of the expansion area, the length of the first plate along the length Two ends of the direction are respectively connected to the two second plates by two of the third plates.
根据本申请的一些实施例，两个所述第二板件共面设置。According to some embodiments of the present application, the two of the second panels are coplanar.
根据本申请的一些实施例，所述扩容端设置有三个所述扩容区和两个所述极柱适配区，相邻的两个所述扩容区之间设置有一个所述极柱适配区，所述盖板置有三个所述第一板件、两个所述第二板件以及四个所述第三板件，相邻的两个所述第一板件之间设置有一个所述第二板件。According to some embodiments of the present application, the expansion end is provided with three said expansion areas and two of the pole alignment areas, and one of the two adjacent expansion areas is provided with the pole alignment The cover plate is provided with three first plate members, two second plate members and four third plate members, and one adjacent one of the two adjacent first plate members is disposed The second plate.
根据本申请的一些实施例，所述极柱连接于所述极芯主体并延伸穿过所述第二板件。According to some embodiments of the present application, the pole is coupled to the pole core body and extends through the second panel.
根据本申请的一些实施例，所述极芯包括连接于所述极芯主体的极耳，所述极耳连接于所述极柱。According to some embodiments of the present application, the pole core includes a tab attached to the pole core body, the tab being coupled to the pole.
根据本申请的一些实施例，所述电池单元包括设置在所述盖板内表面的内引出片，所述极柱连接于所述内引出片，所述极柱通过所述内引出片连接于所述极耳。According to some embodiments of the present application, the battery unit includes an inner lead piece disposed on an inner surface of the cover plate, the pole is connected to the inner lead piece, and the pole is connected to the inner lead piece through the inner lead piece The tabs.
根据本申请的一些实施例，所述极耳设置在所述极柱适配区。According to some embodiments of the present application, the tab is disposed in the pole fitting region.
根据本申请的一些实施例，所述极耳与所述极芯主体一体成型。According to some embodiments of the present application, the tab is integrally formed with the pole core body.
另外，本申请还提供了一种电池模组，其中，所述电池模组包括以上方案所述的电池单元。In addition, the present application also provides a battery module, wherein the battery module includes the battery unit described in the above scheme.
另外，本申请还提供了一种汽车，其中，所述汽车包括至少一个以上方案所述的电池模组。In addition, the present application also provides an automobile, wherein the automobile includes at least one battery module described in the above aspect.
通过上述技术方案，在极芯主体的一些端面中，分别设置对应于极柱的极柱适配区和相对于极柱适配区凸出的扩容区，从而在极柱附近的有限空间内增加极芯主体的体积，提高了电池容量，并且盖板上形成为与极芯主体的扩容端匹配的多段式结构，简化了结构。According to the above technical solution, in some end faces of the pole core body, a pole fitting region corresponding to the pole column and a expansion region protruding relative to the pole fitting region are respectively disposed, thereby increasing in a limited space near the pole column. The volume of the pole core body increases the battery capacity, and the cover plate is formed in a multi-stage structure that matches the expansion end of the pole core body, simplifying the structure.
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。Additional aspects and advantages of the present invention will be set forth in part in the description which follows.
附图说明DRAWINGS
图1是本申请实施方式所述的电池单元的立体图；1 is a perspective view of a battery unit according to an embodiment of the present application;
图2是本申请实施方式所述的电池单元的***图，其中极芯未显示；2 is an exploded view of a battery unit according to an embodiment of the present application, in which a pole core is not shown;
图3是本申请实施方式所述的盖板的立体图；3 is a perspective view of a cover plate according to an embodiment of the present application;
图4是本申请实施方式所述的极芯主立体图；4 is a perspective view of a polar core according to an embodiment of the present application;
图5是本申请实施方式所述的电池模组的示意图；5 is a schematic diagram of a battery module according to an embodiment of the present application;
图6是本申请实施方式所述的汽车的示意图。Fig. 6 is a schematic view of a car according to an embodiment of the present application.
附图标记说明Description of the reference numerals
100   电池单元            200电池模组100 battery unit 200 battery module
300   汽车300 cars
1     极芯主体            2    极耳1 pole core body 2 pole
3     外壳                4    盖板3 housing 4 cover
5     极柱                6    内引出片5 pole 6 inner lead
11    扩容端11 expansion end
111扩容区              112极柱适配区111 expansion area 112 pole fitting area
32开口32 openings
41第一板件            42第二板件41 first plate 42 second plate
43第三板件43 third plate
具体实施方式Detailed ways
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本申请，而不能理解为对本申请的限制。The embodiments of the present application are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative, and are not to be construed as limiting.
本申请提供了一种电池单元100，其中，所述电池单元100包括外壳3、盖板4、极柱5以及极芯，所述外壳3具有开口32，所述开口32通过所述盖板4封盖，所述极柱5与所述极芯电连接并延伸穿过所述盖板4，所述极芯包括具有扩容端11的极芯主体1，所述扩容端11设置有极柱适配区112和相对于所述极柱适配区112沿所述极柱5的伸出方向凸出的扩容区111，所述极柱适配区112相对于所述扩容区111凹陷而形成极柱安装空间，所述极柱5至少部分地设置在所述极柱安装空间中，所述盖板4包括沿长度方向依次连接的多个板件，多个所述板件包括覆盖所述扩容区111的顶面的第一板件41、覆盖所述极柱适配区112的第二板件42以及连接所述第一板件41和所述第二板件42的第三板件43。The present application provides a battery unit 100, wherein the battery unit 100 includes a housing 3, a cover plate 4, a pole 5 and a pole core, the housing 3 having an opening 32 through which the opening 32 passes a cover, the pole 5 is electrically connected to the pole core and extends through the cover plate 4, the pole core comprises a pole core body 1 having a expansion end 11, and the expansion end 11 is provided with a pole a distribution area 112 and a expansion area 111 protruding along the protruding direction of the pole 5 with respect to the pole fitting area 112, the pole fitting area 112 is recessed with respect to the expansion area 111 to form a pole a column mounting space, the pole 5 is at least partially disposed in the pole mounting space, the cover plate 4 includes a plurality of plates sequentially connected in a length direction, and the plurality of the plates includes covering the expansion a first plate member 41 of a top surface of the region 111, a second plate member 42 covering the pole fitting region 112, and a third plate member 43 connecting the first plate member 41 and the second plate member 42 .
在本方案中，盖板4和外壳3共同组成容纳极芯的壳体，其中，盖板4用于安装极 柱5。所述极芯包括极芯主体1，极芯主体1的其中一端为扩容端11，扩容端11设置有极柱适配区112和扩容区111，扩容区111相对于极柱适配区112凸出而实现扩容，极柱适配区112相比于扩容区111凹陷而形成的空间为极柱安装空间，极柱5的至少一部分位于该极柱安装空间中。In the present solution, the cover 4 and the outer casing 3 together form a housing that houses the pole core, wherein the cover 4 is used to mount the pole 5. The pole core includes a pole core body 1 . One end of the pole core body 1 is a expansion end 11 , and the expansion end 11 is provided with a pole fitting area 112 and a expansion area 111 . The expansion area 111 is convex with respect to the pole fitting area 112 . To expand the capacity, the space formed by the pole fitting region 112 recessed from the expansion region 111 is a pole mounting space, and at least a portion of the pole 5 is located in the pole mounting space.
本方案的申请构思中，针对所述极芯安装极柱5的一端进行扩容即扩容端，在扩容端中，与极柱5配合的区域(即极柱适配区112)受极柱5的限制不能向外凸出，而其他区域由于没有被极柱5占用而存在可用空间，因此将这一部分区域的极芯主体1设置为向外凸出即扩容区111。扩容区111与极柱适配区112形成的落差空间即为用于安装极柱5的极柱安装空间，当然，极柱5可以全部设置在该极柱安装空间中，也可以仅一部分设置在该安装空间中。In the application concept of the solution, one end of the pole core mounting pole 5 is expanded or expanded, and in the expansion end, the area that fits the pole 5 (ie, the pole fitting area 112) is received by the pole 5 The restriction does not protrude outward, and other regions have available space because they are not occupied by the poles 5, so the pole core body 1 of this partial region is disposed to protrude outward, that is, the expansion region 111. The gap space formed by the expansion area 111 and the pole fitting area 112 is the pole mounting space for mounting the pole 5 . Of course, the poles 5 may all be disposed in the pole mounting space, or only a part of the poles may be disposed in the pole mounting space. In the installation space.
为了配合极芯主体1的扩容端11，用于安装极柱5的盖板4也大致形成为与扩容端11对应的形状，如图1、图2、图3所示，盖板4包括沿长度方向的多个板件，其中第一板件41可以用于覆盖扩容区111的顶面，第二板件42用于覆盖极柱适配区112，由于扩容区111与极柱适配区112具有高度落差，还设置了连接第一板件41和第二板件42的第三板件43，盖板4的多段式结构相对较为简单，便于加工制作。In order to fit the expansion end 11 of the pole core body 1, the cover plate 4 for mounting the pole 5 is also formed substantially in a shape corresponding to the expansion end 11, as shown in FIG. 1, FIG. 2, FIG. a plurality of panels in the longitudinal direction, wherein the first panel 41 can be used to cover the top surface of the expansion area 111, and the second panel 42 is used to cover the pole fitting area 112, due to the expansion area 111 and the pole fitting area The 112 has a height drop and is provided with a third plate member 43 connecting the first plate member 41 and the second plate member 42. The multi-segment structure of the cover plate 4 is relatively simple and convenient for processing.
另外，所述外壳3包括多个侧板，所述侧板与所述第一板件41、第三板件43围成容纳所述扩容区111的扩容腔。外壳3的多个所述侧板为与盖板4的边缘接合的板部，盖板4形成为多段式结构，因此，所述侧板的上边缘需要与盖板4的形状配合以彼此接合实现密封，相比于第二板件42而凸出的第一板件41和第三板件43与所述侧板围成腔体结构，即所述扩容腔，所述扩容腔可以容纳所述扩容区111的至少一部分。In addition, the outer casing 3 includes a plurality of side plates, and the side plates and the first plate member 41 and the third plate member 43 enclose a expansion cavity for the expansion area 111. A plurality of the side panels of the outer casing 3 are plate portions that engage the edges of the cover plate 4, and the cover plate 4 is formed in a multi-segment structure, and therefore, the upper edges of the side panels need to be fitted with the shape of the cover plate 4 to be engaged with each other. Achieving a seal, the first plate member 41 and the third plate member 43 protruding from the second plate member 42 and the side plate enclosing a cavity structure, that is, the expansion cavity, the expansion cavity can accommodate the cavity At least a portion of the expansion area 111 is described.
根据本申请的一种实施方式，所述扩容端11设置有位于中间的一个所述极柱适配区112和两个分别位于所述极柱适配区两侧的所述扩容区111，所述第二板件42沿长度方向的两端分别通过所述第三板件43连接于两个所述第一板件41。扩容端11设置有一个极柱适配区112和两个扩容区111，对应地，盖板4设置有一个第二板件42和两个第一板件41，并且通过两个第三板件43将两个第一板件41连接于第二板件42的两端，使得盖板4的形状与扩容端11的形状相对应。According to an embodiment of the present application, the expansion end 11 is provided with one of the pole fitting regions 112 located in the middle and two expansion regions 111 respectively located at two sides of the pole fitting region. Both ends of the second plate member 42 in the longitudinal direction are respectively connected to the two first plate members 41 through the third plate member 43. The expansion end 11 is provided with a pole fitting area 112 and two expansion areas 111. Correspondingly, the cover plate 4 is provided with a second plate member 42 and two first plates 41, and passes through two third plates. 43 connects the two first plates 41 to both ends of the second plate member 42, so that the shape of the cover plate 4 corresponds to the shape of the expansion end 11.
根据本申请的一种实施方式，所述扩容端11设置有位于中间的一个所述扩容区111和两个分别位于所述扩容区111两侧的所述极柱适配区112，所述第一板件41沿长度方向的两端分别通过两个所述第三板件43连接于两个所述第二板件42。如图1、图2、图3所示，扩容区111设置在扩容端11的中间位置，其两侧分别设置有一个极柱适配区112，相应的，盖板4设置有位于中间的第一板件41和两侧的第三板件43，并且两个第二板件42通过两个第三板件43连接于第一板件41的两端。According to an embodiment of the present application, the expansion end 11 is provided with one of the expansion area 111 located in the middle and two pole alignment areas 112 respectively located on opposite sides of the expansion area 111, Two ends of a plate member 41 in the longitudinal direction are respectively connected to the two second plate members 42 through the two third plate members 43. As shown in FIG. 1 , FIG. 2 and FIG. 3 , the expansion area 111 is disposed at an intermediate position of the expansion end 11 , and a pole fitting area 112 is disposed on each side of the expansion area, and correspondingly, the cover 4 is disposed in the middle. A plate member 41 and third plate members 43 on both sides, and two second plate members 42 are coupled to both ends of the first plate member 41 by two third plate members 43.
一些实施例中，两个所述第二板件42共面设置。两个第二板件42对应于极芯主体1的两个极柱适配区112，两个极柱适配区112为受到极柱限制的区域，其高度相同，因此两个第二板件42可以设置为具有相同的高度，即共面设置。In some embodiments, the two second panels 42 are coplanar. The two second plates 42 correspond to the two pole fitting regions 112 of the pole core body 1, and the two pole fitting regions 112 are regions limited by the poles, the heights of which are the same, thus the two second plates 42 can be set to have the same height, ie coplanar settings.
根据本申请的一种实施方式，所述扩容端11设置有三个所述扩容区111和两个所述极柱适配区112，相邻的两个所述扩容区111之间设置有一个所述极柱适配区111，所述盖板4设置有三个第一板件41、两个第二板件42以及四个第三板件43，相邻的两个第一板件41之间设置有一个第二板件42。扩容区111和极柱适配区112在直线方向上交替地设置，对应地，盖板4设置有三个第一板件41和两个第二板件42，第二板件42设置在相邻的两个第一板件41之间，即交替地设置，第二板件42的两端分别通过第三板件43连接于第一板件41。According to an embodiment of the present application, the expansion end 11 is provided with three expansion regions 111 and two pole alignment regions 112, and a space between the two adjacent expansion regions 111 is disposed. The pole fitting region 111 is provided with three first plates 41, two second plates 42 and four third plates 43 between the two adjacent first plates 41 A second plate member 42 is provided. The expansion area 111 and the pole fitting area 112 are alternately arranged in a linear direction. Correspondingly, the cover plate 4 is provided with three first plates 41 and two second plates 42 disposed adjacent to each other. The two first plates 41 are alternately disposed, and the two ends of the second plate member 42 are respectively connected to the first plate member 41 through the third plate member 43.
其中，所述极柱5连接于所述极芯主体1并延伸穿过所述第二板件42。极柱5穿过第二板件42延伸到外部，以与外部的用电设备连接。The pole 5 is connected to the pole core body 1 and extends through the second plate 42. The pole 5 extends through the second plate 42 to the outside for connection to an external electrical device.
另外，所述极芯包括连接于所述极芯主体1的极耳2，所述极耳2连接于所述极柱5。所述极芯可以包括两个分别对应于正极和负极的极耳2，极耳2与极芯主体1电连接，并且两个极柱5分别与两个极耳2连接。In addition, the pole core comprises a tab 2 connected to the pole core body 1, the tab 2 being connected to the pole 5. The pole core may comprise two tabs 2 respectively corresponding to the positive and negative poles, the tabs 2 being electrically connected to the pole core body 1, and the two poles 5 being respectively connected to the two tabs 2.
另外，所述电池单元100包括设置在所述盖板4内侧的内引出片6，所述极柱5连接于所述内引出片6，所述极柱5通过所述内引出片6连接于所述极耳2。具体的，内引出片6设置在第二板件42的内侧，极柱5穿过第二板件42而连接内引出片6，并通过内引出片6与极耳2电连接。In addition, the battery unit 100 includes an inner lead piece 6 disposed inside the cover plate 4, the pole 5 is connected to the inner lead piece 6, and the pole 5 is connected to the inner lead piece 6 through the inner lead piece 6. The tab 2 is. Specifically, the inner lead piece 6 is disposed on the inner side of the second plate member 42, and the pole piece 5 passes through the second plate member 42 to connect the inner lead piece 6, and is electrically connected to the tab 2 through the inner lead piece 6.
另外，所述极耳2设置在所述极柱适配区112。极耳2可以连接于极柱适配区112并全部设置在极柱适配区112，也可以连接于扩容区111或极芯主体1的其他位置并延伸到极柱适配区112，从而可以与极柱5连接。In addition, the tab 2 is disposed in the pole fitting region 112. The tabs 2 can be connected to the pole fitting region 112 and all disposed in the pole fitting region 112, or can be connected to the expansion region 111 or other positions of the pole core body 1 and extend to the pole fitting region 112, so that Connected to the pole 5 .
根据本申请的一些实施例，所述极耳2与所述极芯主体1一体成型。极耳2和极芯主体1由制成极芯的材料一体成型制成，极耳2包括作为正极和负极的两个极耳。当然，在其他实施方式中，极耳2也可以另外加工制成并连接到极芯主体1上。According to some embodiments of the present application, the tab 2 is integrally formed with the pole core body 1. The tab 2 and the pole core body 1 are integrally formed of a material made into a pole core, and the tab 2 includes two tabs as a positive electrode and a negative electrode. Of course, in other embodiments, the tab 2 can be additionally fabricated and attached to the pole core body 1.
另外，如图5所示，本申请还提供了一种电池模组200，其中，所述电池模组200包括以上方案所述的电池单元100。所述电池模组200可以包括多个所述电池单元100，多个电池单元100以串联或并联方式连接而供电。In addition, as shown in FIG. 5, the present application further provides a battery module 200, wherein the battery module 200 includes the battery unit 100 described in the above scheme. The battery module 200 may include a plurality of the battery cells 100, and the plurality of battery cells 100 are connected in series or in parallel to supply power.
另外，如图6所示，本申请还提供了一种汽车300，其中，所述汽车300包括至少一个以上方案所述的电池模组200。In addition, as shown in FIG. 6, the present application further provides an automobile 300, wherein the automobile 300 includes at least one battery module 200 described in the above scheme.
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、 “顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship of the indications of "radial", "circumferential", etc., is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present application and simplified description, and does not indicate or imply the indicated device or component. It must be constructed and operated in a particular orientation, and is therefore not to be construed as limiting.
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is two or more unless specifically and specifically defined.
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。In the present application, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。In the present application, the first feature "on" or "below" the second feature may be the direct contact of the first and second features, or the first and second features are indirectly through the intermediate medium, unless otherwise explicitly stated and defined. contact. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the application. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。While the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the present application. The embodiments are subject to variations, modifications, substitutions and variations.

Claims (13)

  1. 一种电池单元(100)，其特征在于，所述电池单元(100)包括外壳(3)、盖板(4)、极柱(5)以及极芯，所述外壳(3)具有开口(32)，所述开口(32)通过所述盖板(4)封盖，所述极柱(5)与所述极芯电连接并延伸穿过所述盖板(4)，所述极芯包括具有扩容端(11)的极芯主体(1)，所述扩容端(11)设置有极柱适配区(112)和相对于所述极柱适配区(112)沿所述极柱(5)的伸出方向凸出的扩容区(111)，所述极柱适配区(112)相对于所述扩容区(111)凹陷而形成极柱安装空间，所述极柱(5)至少部分地设置在所述极柱安装空间中，所述盖板(4)包括沿长度方向依次连接的多个板件，多个所述板件包括覆盖所述扩容区(111)的顶面的第一板件(41)、覆盖所述极柱适配区(112)的第二板件(42)以及连接所述第一板件(41)和所述第二板件(42)的第三板件(43)。A battery unit (100), characterized in that the battery unit (100) comprises a casing (3), a cover plate (4), a pole (5) and a pole core, the casing (3) having an opening (32) The opening (32) is covered by the cover plate (4), the pole (5) is electrically connected to the pole core and extends through the cover plate (4), the pole core comprises a pole core body (1) having a expansion end (11), the expansion end (11) being provided with a pole fitting region (112) and with respect to the pole fitting region (112) along the pole ( 5) a protruding area (111) protruding in a protruding direction, the pole fitting area (112) is recessed relative to the expansion area (111) to form a pole mounting space, and the pole (5) is at least Partially disposed in the pole mounting space, the cover plate (4) includes a plurality of plates connected in sequence along the length direction, and the plurality of the plates includes a top surface covering the expansion area (111) a first plate member (41), a second plate member (42) covering the pole fitting region (112), and a first connecting the first plate member (41) and the second plate member (42) Three plates (43).
  2. 根据权利要求1所述的电池单元(100)，其特征在于，所述外壳(3)包括多个侧板，所述侧板与所述第一板件(41)、第三板件(43)围成容纳所述扩容区(111)的扩容腔。The battery unit (100) according to claim 1, characterized in that the outer casing (3) comprises a plurality of side panels, the side panels and the first panel (41), the third panel (43) And enclosing a expansion chamber that accommodates the expansion area (111).
  3. 根据权利要求2所述的电池单元(100)，其特征在于，所述扩容端(11)设置有位于中间的一个所述极柱适配区(112)和两个分别位于所述极柱适配区两侧的所述扩容区(111)，所述第二板件(42)沿长度方向的两端分别通过所述第三板件(43)连接于两个所述第一板件(41)。The battery unit (100) according to claim 2, wherein the expansion end (11) is provided with one of the pole fitting regions (112) located in the middle and two of the poles respectively located at the poles The expansion area (111) on both sides of the distribution area, the two ends of the second plate member (42) along the length direction are respectively connected to the two first plates by the third plate member (43) ( 41).
  4. 根据权利要求2所述的电池单元(100)，其特征在于，所述扩容端(11)设置有位于中间的一个所述扩容区(111)和两个分别位于所述扩容区(111)两侧的所述极柱适配区(112)，所述第一板件(41)沿长度方向的两端分别通过两个所述第三板件(43)连接于两个所述第二板件(42)。The battery unit (100) according to claim 2, wherein the expansion end (11) is provided with one of the expansion zones (111) located in the middle and two of the expansion zones (111) respectively The pole fitting region (112) of the side, the two ends of the first plate member (41) in the longitudinal direction are respectively connected to the two second plates by two of the third plates (43) Piece (42).
  5. 根据权利要求4所述的电池单元(100)，其特征在于，两个所述第二板件(42)共面设置。The battery unit (100) according to claim 4, characterized in that the two second plates (42) are arranged coplanar.
  6. 根据权利要求2所述的电池单元(100)，其特征在于，所述扩容端(11)设置有三个所述扩容区(111)和两个所述极柱适配区(112)，相邻的两个所述扩容区(111)之间设置有一个所述极柱适配区(111)，所述盖板(4)置有三个所述第一板件(41)、两个所述第二板件(42)以及四个所述第三板件(43)，相邻的两个所述第一板件(41)之间设置 有一个所述第二板件(42)。The battery unit (100) according to claim 2, wherein the expansion end (11) is provided with three of the expansion area (111) and two of the pole alignment areas (112) adjacent to each other. Between the two expansion areas (111), a pole fitting area (111) is disposed, and the cover plate (4) is provided with three of the first plates (41), two of the The second plate member (42) and the four third plate members (43) are provided with one of the second plate members (42) disposed between two adjacent first plate members (41).
  7. 根据权利要求2所述的电池单元(100)，其特征在于，所述极柱(5)连接于所述极芯主体(1)并延伸穿过所述第二板件(42)。The battery unit (100) according to claim 2, characterized in that the pole (5) is connected to the pole core body (1) and extends through the second plate (42).
  8. 根据权利要求7所述的电池单元(100)，其特征在于，所述极芯包括连接于所述极芯主体(1)的极耳(2)，所述极耳(2)连接于所述极柱(5)。The battery unit (100) according to claim 7, wherein the pole core comprises a tab (2) connected to the pole core body (1), the tab (2) being connected to the Pole (5).
  9. 根据权利要求8所述的电池单元(100)，其特征在于，所述电池单元(100)包括设置在所述盖板(4)内表面的内引出片(6)，所述极柱(5)连接于所述内引出片(6)，所述极柱(5)通过所述内引出片(6)连接于所述极耳(2)。The battery unit (100) according to claim 8, wherein the battery unit (100) comprises an inner lead piece (6) disposed on an inner surface of the cover plate (4), the pole (5) ) is connected to the inner lead piece (6), and the pole (5) is connected to the tab (2) through the inner lead piece (6).
  10. 根据权利要求8所述的电池单元(100)，其特征在于，所述极耳(2)设置在所述极柱适配区(112)。The battery unit (100) according to claim 8, characterized in that the tab (2) is disposed in the pole fitting region (112).
  11. 根据权利要求8所述的电池单元(100)，其特征在于，所述极耳(2)与所述极芯主体(1)一体成型。The battery unit (100) according to claim 8, characterized in that the tab (2) is integrally formed with the pole core body (1).
  12. 一种电池模组(200)，其特征在于，所述电池模组(200)包括权利要求1-11中任意一项所述的电池单元(100)。A battery module (200), characterized in that the battery module (200) comprises the battery unit (100) according to any one of claims 1-11.
  13. 一种汽车(300)，其特征在于，所述汽车(300)包括至少一个权利要求12所述的电池模组(200)。A vehicle (300), characterized in that the vehicle (300) comprises at least one battery module (200) according to claim 12.
PCT/CN2019/070665 2018-01-08 2019-01-07 Battery cell, battery module and automobile WO2019134701A1 (en)

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
CN201810015502 2018-01-08
CN201810015506 2018-01-08
CN201810015503.4 2018-01-08
CN201810016520 2018-01-08
CN201810015502.X 2018-01-08
CN201810016056.4 2018-01-08
CN201810016056 2018-01-08
CN201810016052 2018-01-08
CN201810015504 2018-01-08
CN201810016052.6 2018-01-08
CN201810016060.0 2018-01-08
CN201810016520.X 2018-01-08
CN201810015503 2018-01-08
CN201810015506.8 2018-01-08
CN201810016060 2018-01-08
CN201810015504.9 2018-01-08
CN201810476328.9 2018-05-17
CN201810476328.9A CN110021779A (en) 2018-01-08 2018-05-17 Battery unit, battery modules and automobile

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CN205828568U (en) * 2016-07-06 2016-12-21 宁德时代新能源科技股份有限公司 Secondary cell
CN206727177U (en) * 2017-03-16 2017-12-08 宁德时代新能源科技股份有限公司 Secondary cell and battery bag

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CN201438492U (en) * 2009-06-18 2010-04-14 天津市捷威动力工业有限公司 Polymer lithium-ion traction battery
CN201717326U (en) * 2010-06-29 2011-01-19 超威电源有限公司 Battery with built-in connecting terminal
CN203351681U (en) * 2013-05-21 2013-12-18 宝钢发展有限公司 Storage battery and connecting wire thereof
CN205406647U (en) * 2016-03-11 2016-07-27 东风商用车有限公司 Lithium iron phosphate starting power supply
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