WO2023241015A1 - 单体电池与电池包 - Google Patents

单体电池与电池包 Download PDF

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Publication number
WO2023241015A1
WO2023241015A1 PCT/CN2022/144145 CN2022144145W WO2023241015A1 WO 2023241015 A1 WO2023241015 A1 WO 2023241015A1 CN 2022144145 W CN2022144145 W CN 2022144145W WO 2023241015 A1 WO2023241015 A1 WO 2023241015A1
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WO
WIPO (PCT)
Prior art keywords
connection part
battery
hole
box
battery pack
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PCT/CN2022/144145
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English (en)
French (fr)
Inventor
杨伟
Original Assignee
欣旺达惠州动力新能源有限公司
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Publication of WO2023241015A1 publication Critical patent/WO2023241015A1/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
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch 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 energy storage devices, and in particular, to a single battery and a battery pack.
  • This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a single battery that can be connected to the busbar after the single battery is placed in the box of the battery pack to prevent the connection position between the single battery and the busbar from being torn during the transfer process.
  • This application also proposes a battery pack using the above-mentioned single cell.
  • the single cell in the first embodiment of the present application includes:
  • Battery core assembly located in the housing
  • a battery terminal is provided at one end of the housing.
  • the battery terminal includes a first connection part and a second connection part.
  • the second connection part is connected to the battery core assembly.
  • the first connection part is connected to the battery core assembly.
  • the second connection part is electrically connected and extends in a direction away from the housing, and the first connection part is used to connect a busbar.
  • the cell terminal is provided with a first connection portion protruding from the casing, so that the connection part between the bus bar and the cell terminal can be adjusted to an easy-to-operate position to facilitate connecting the bus after the single battery is placed in the box.
  • a first connection portion protruding from the casing, so that the connection part between the bus bar and the cell terminal can be adjusted to an easy-to-operate position to facilitate connecting the bus after the single battery is placed in the box.
  • the first connecting portion extends along the length direction of the housing.
  • first connecting part and the second connecting part are connected to form an integrated structure.
  • the width of the cell terminal is no greater than the width of the housing.
  • the box has an opening at the top
  • the single cell is located in the box, and there are multiple single cells, and the plurality of single cells are sequentially distributed along the width direction;
  • bus bars connect two adjacent first connecting parts, and the connection position between the bus bar and the first connecting parts can be exposed from the opening.
  • the box body includes side plates, and the side plates are lower than the first connecting part.
  • the battery pack further includes an insulating member located at least between the box and the first connection part.
  • the first connection part has a first through hole
  • the bus bar has a second through hole
  • the first through hole and the second through hole are provided correspondingly, so that the The first connecting part and the bus bar are positioned through the first through hole and the second through hole.
  • the first connecting part is connected to an end of the second connecting part close to the opening.
  • the bus bar and the first connection part are welded and fixed, and the welding part between the bus bar and the first connection part can be exposed from the opening;
  • the battery pack further includes a threaded fastener
  • the threaded fastener includes a head and a rod, the head is connected to one end of the rod, and the first connection part has a threaded hole
  • the bus bar has a third through hole, the threaded hole is provided correspondingly to the third through hole, the rod portion is passed through the third through hole and is threadedly connected to the threaded hole, and the head portion can be exposed through the opening.
  • Figure 1 is a three-dimensional schematic diagram of a single battery in an embodiment of the present application.
  • Figure 2 is an enlarged schematic diagram of area A in Figure 1;
  • Figure 3 is a three-dimensional schematic diagram of the battery pack in the embodiment of the present application.
  • Figure 4 is an enlarged schematic diagram of area B in Figure 3;
  • the cell terminals are arranged on both sides of the battery in the length direction.
  • the distance between the cell terminals and the side plates of the box is very small.
  • the welding equipment cannot perform welding operations from the side, so the common practice is to first arrange multiple bar-shaped batteries in order on the outside of the box, and then connect the busbars by welding between the cell terminals of adjacent batteries. , and finally put multiple bar-shaped batteries into the box as a whole. Due to the large number of batteries, it is difficult to support each battery during the transfer process. Therefore, there is a risk of sinking of unsupported batteries, resulting in single cells and The connection between the busbars is torn.
  • this application proposes a single battery, the cell terminal 120 of which includes a first connection part 121 protruding from the battery case, and the bus bar 300 can be placed above the first connection part 121 , so that the connection operation of the bus bar 300 can be performed after the single battery 100 is placed in the box, and the risk of tearing when multiple batteries are moved into the box as a whole is avoided.
  • a single battery 100 in an embodiment of the present application includes a case 110, a cell assembly (not shown) and a cell terminal 120.
  • the case 110 can be a rectangular case in the figure, and The size in the length direction (left and right direction in the figure) is much larger than the size in the width direction (front and back direction in the figure) and height direction (up and down direction in the figure), making the single cell 100 as a whole elongated.
  • the battery core assembly is located in the housing 110 and includes a battery core, a positive pole and a negative pole. The positive pole and the negative pole are respectively connected to both ends of the battery core along the length direction.
  • the single battery 100 includes two cell terminals 120 , and the two cell terminals 120 are respectively located at opposite ends of the housing 110 along the length direction of the housing 110 , for example, FIG. 1 The left and right ends of . Both cell terminals 120 are electrically connected to the cell assembly. Specifically, one cell terminal 120 is connected to the positive pole of the cell assembly, and the other cell terminal 120 is connected to the negative pole of the cell assembly. The cell terminal 120 For connection with bus 300.
  • the battery terminal 120 of this embodiment is provided with a first connection portion 121 protruding from the housing 110, so that the connection portion between the bus bar 300 and the battery terminal 120 can be adjusted to an easy-to-operate position. It is convenient to connect the busbar 300 after the single battery 100 is placed in the box 200 .
  • the first connecting portion 121 extends along the length direction of the housing 110 , that is, the first connecting portion 121 extends horizontally, so as to better carry the bus bar 300 .
  • the first connecting part 121 and the second connecting part 122 may be connected to form an integrated structure.
  • the cell terminal 120 is a metal plate, and a part of the metal plate is bent to form the first connecting part 121, and the unbent part serves as the second connecting part 121.
  • the connection portion 122 and the cell terminal 120 may also be an integral structure formed by a process such as casting molding.
  • the width of the cell terminal 120 is no greater than the width of the housing 110 . That is to say, both sides of the cell terminal 120 in the width direction will not exceed the housing 110 , which facilitates the installation of multiple single cells 100 . arranged closely across the width. It can be understood that, without exceeding the casing 110, the width of the cell terminal 120 can be close to the width of the casing 110, so as to increase the connection area between the first connection part 121 and the bus bar 300 and enhance the connection between the busbars 300 and the first connection part 121. Row 300 of support.
  • This application also proposes a battery pack.
  • a battery pack Referring to Figures 3 and 4, it includes a box 200, a busbar 300 and the single cells 100 of the above embodiments.
  • the top of the box 200 has an opening, and the single battery 100 can Put it into the box 200 through this opening.
  • the battery pack also includes a box cover (not shown in the figure), which can be connected with the box body 200 to close the opening.
  • the battery pack includes a plurality of single cells 100.
  • the plurality of single cells 100 are located in the box 200 and are sequentially distributed along the width direction.
  • the battery pack includes a plurality of bus bars 300.
  • One bus bar 300 connects two adjacent ones respectively.
  • the connection position between the bus bar 300 and the first connecting part 121 can be exposed from the opening, which facilitates the connection of the bus bar. 300 and the single battery 100 in the box 200.
  • the connection position that can be exposed from the opening includes: the connection position is located outside the box 200, and the connection position is located inside the box 200, and the connection tool can extend into the box 200 through the opening and contact the connection position. .
  • the head part 510 is connected to one end of the rod part 520, the head part 510 has a matching structure that can cooperate with the tool, such as a slot, a cross groove, etc., and the rod part 520 has a thread.
  • the first connecting part 121 has a threaded hole 124
  • the bus bar 300 has a third through hole 320
  • the threaded hole 124 is provided correspondingly to the third through hole 320.
  • the head 510 of the threaded fastener 500 is set upward to be exposed from the opening, so that the tool can operate the head 510 of the threaded fastener 500 from above to realize the connection between the bus bar 300 and the first Fixing of the connecting part 121.
  • the box 200 includes a bottom plate 210 and a side plate 220.
  • the side plates 220 are connected to the circumference of the bottom plate 210 and jointly define a cavity for placing the single battery 100. It should be noted that in Figure 3, only Two side plates 220 are shown corresponding to the cell terminals 120.
  • the side plates 220 when the single cell 100 is placed and fixed on the bottom plate 210, the side plates 220 are lower than the first connecting portion 121, so that the A connecting part 121 and the bus bar 300 are located outside the box 200. In this way, the connecting tool can not only connect the first connecting part 121 and the bus bar 300 from above, but also connect the first connecting part 121 and the bus bar from the side. 300, thus further increasing the operating space for connecting tools.
  • the first connection part 121 has a first through hole 123
  • the bus bar 300 has a second through hole 310
  • the first through hole 123 and the second through hole 310 are provided correspondingly.
  • the first connecting part 121 is connected to an end of the second connecting part 122 close to the opening, such as the upper end in the figure, which can facilitate extending the first connecting part 121 to the box 200
  • the first connection can be reduced. The distance between the portion 121 and the opening is thereby reduced, thereby reducing the distance that the connecting tool extends into the box 200 .
  • the battery pack further includes an insulating member 400 located between the second connecting part 122 and the box 200 to prevent the second connecting part 122 from directly contacting the box 200 .
  • the second connecting part 122 is parallel to the side plate 220 of the box 200
  • the insulating member 400 covers the outside of the second connecting part 122 .
  • the insulator 400 can also achieve isolation between the casing 110 and the box 200 of the single cell 100. Taking the same example as shown in FIGS.
  • the insulating member 400 also includes a second part and a third part respectively located on the upper and lower sides of the first part.
  • the second part covers the shell 110 above the second connecting part 122
  • the third part covers the shell below the second connecting part 122 .
  • Body 110 It should be noted that the insulating member 400 may also be covered on the inner wall of the box 200 or disposed in the gap between the housing 110 and the side plate 220 .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请公开了一种单体电池与电池包，单体电池包括壳体、电芯组件与电芯端子，电芯组件位于壳体内，电芯端子设置于壳体的一端，电芯端子包括第一连接部和第二连接部，第二连接部与电芯组件电连接，第一连接部与第二连接部连接且向远离壳体的方向延伸，第一连接部用于连接汇流排。电芯端子设置有从壳体上伸出的第一连接部，使得汇流排与电芯端子之间的连接部位能够调整至易于操作的位置，便于在单体电池放置在箱体内后再连接汇流排，与先在箱体外部将多个单体电池与汇流排进行固定，然后再整体转移至箱体内的方式相比，能够避免单体电池与汇流排的连接位置在转移过程中发生撕裂。

Description

单体电池与电池包
相关申请的交叉引用
本申请要求于2022年06月13日提交中国专利局、申请号为202221469942.0、发明名称为“单体电池与电池包”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及储能器件技术领域，尤其是涉及一种单体电池与电池包。
背景技术
随着新能源汽车行业的蓬勃发展，动力电池愈发追求高能量密度、低成本，去模组化、高集成化成为未来发展趋势，因此长电池应运而生。相关技术中，批量长电池在组装至箱体之前，通常会先通过汇流排进行串联，然后再整体放入箱体，搬运过程中，未被支撑的电池存在下沉风险，导致连接位置发生撕裂。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此，本申请提出一种单体电池，能够在单体电池放置于电池包的箱体内后再连接汇流排，避免单体电池与汇流排之间的连接位置在转移过程中发生撕裂。
本申请还提出了一种应用上述单体电池的电池包。
根据本申请第一实施例中的单体电池，包括：
壳体；
电芯组件，位于所述壳体内；
电芯端子，设置于所述壳体的一端，所述电芯端子包括第一连接部和第二连接部，所述第二连接部与所述电芯组件连接，所述第一连接部与所述第二连接部电连接且向远离所述壳体的方向延伸，所述第一连接部用于连接汇流排。
根据本申请实施例的电池包，至少具有如下有益效果：
电芯端子设置有从壳体上伸出的第一连接部，使得汇流排与电芯端子之间的连接部位能 够调整至易于操作的位置，便于在单体电池放置在箱体内后再连接汇流排，与先在箱体外部将多个单体电池与汇流排进行固定，然后再整体转移至箱体内的方式相比，能够避免单体电池与汇流排的连接位置在转移过程中发生撕裂。
在本申请的其他实施例中，所述第一连接部沿所述壳体的长度方向延伸设置。
在本申请的其他实施例中，所述第一连接部与所述第二连接部连接为一体结构。
在本申请的其他实施例中，所述电芯端子的宽度不大于所述壳体的宽度。
根据本申请第二实施例中的电池包，包括：
箱体，顶部具有开口；
所述的单体电池，位于所述箱体内，所述单体电池设置有多个，多个所述单体电池沿宽度方向依次分布；
汇流排，所述汇流排设置有多个，所述汇流排连接相邻两个所述第一连接部，且所述汇流排与所述第一连接部的连接位置能够从所述开口露出。
在本申请的其他实施例中，所述箱体包括侧板，所述侧板低于所述第一连接部。
在本申请的其他实施例中，所述电池包还包括绝缘件，所述绝缘件至少位于所述箱体与所述第一连接部之间。
在本申请的其他实施例中，所述第一连接部具有第一通孔，所述汇流排具有第二通孔，所述第一通孔与所述第二通孔对应设置，以使所述第一连接部与所述汇流排通过所述第一通孔与所述第二通孔进行定位。
在本申请的其他实施例中，所述第一连接部连接于所述第二连接部靠近所述开口的一端。
在本申请的其他实施例中，所述汇流排与所述第一连接部之间焊接固定，且所述汇流排与所述第一连接部之间的焊接部位能够从所述开口露出；
或者，所述电池包还包括螺纹紧固件，所述螺纹紧固件包括头部与杆部，所述头部连接于所述杆部的一端，所述第一连接部具有螺纹孔，所述汇流排具有第三通孔，所述螺纹孔与所述第三通孔对应设置，所述杆部穿设于所述第三通孔，并与所述螺纹孔螺纹连接，所述头部能够从所述开口露出。
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。
附图说明
下面结合附图和实施例对本申请做进一步的说明，其中：
图1为本申请实施例中单体电池的立体示意图；
图2为图1中A区域的放大示意图；
图3为本申请实施例中电池包的立体示意图；
图4为图3中B区域的放大示意图；
图5为图3中电池包的剖面示意图；
图6为本申请另一实施例中电池包的剖面示意图。
附图标记：
单体电池100、壳体110、电芯端子120、第一连接部121、第二连接部122、第一通孔123、螺纹孔124；
箱体200、底板210、侧板220；
汇流排300、第二通孔310、第三通孔320；
绝缘件400；
螺纹紧固件500、头部510、杆部520。
具体实施方式
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，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右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。
在本申请的描述中，若干的含义是一个以上，多个的含义是两个以上，大于、小于、超过等理解为不包括本数，以上、以下、以内等理解为包括本数。如果有描述到第一、第二只是用于区分技术特征为目的，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或者隐含指明所指示的技术特征的先后关系。
本申请的描述中，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本申请中的具体含义。
本申请的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“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一定指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何的一个或多个实施例或示例中以合适的方式结合。
对于例如条形电池的电池而言，其电芯端子设置于电池的长度方向的两侧，当条形电池放置于箱体内时，电芯端子与箱体的侧板之间的距离很小，导致焊接设备无法从侧向执行焊接操作，因此通常的做法是先在箱体的外部将多个条形电池按序排列，然后在相邻电池的电芯端子之间通过焊接等方式连接汇流排，最后将多个条形电池整体放入箱体内，由于电池的数量较多，转移过程中难以对每个电池都进行支撑，因此未被支撑的电池存在下沉的风险，导致单体电池与汇流排的连接处发生撕裂。基于上述问题，本申请提出了一种单体电池，其上的电芯端子120包括有从电池壳体上伸出的第一连接部121，汇流排300能够放置在第一连接部121的上方，从而能够在单体电池100放置于箱体内后执行汇流排300的连接操作，避免多个电池整体移入箱体时的撕裂风险，以下结合附图进行具体说明。
参照图1、图2，本申请一实施例中的单体电池100包括壳体110、电芯组件(未示出)与电芯端子120，壳体110可以是图中的矩形壳体，且其长度方向(如图中的左右方向)的尺寸远大于宽度方向(如图中的前后方向)以及高度方向(如图中的上下方向)的尺寸，使得单体电池100整体为长条形。电芯组件位于壳体110内，其包括电芯、正极柱与负极柱，正极柱与负极柱沿长度方向分别连接于电芯的两端。
对应于电芯组件的正极柱与负极柱，单体电池100包括两个电芯端子120，两个电芯端子120沿壳体110的长度方向分别位于壳体110的相对两端，例如图1中的左端与右端。两个电芯端子120均与电芯组件电连接，具体的，一个电芯端子120与电芯组件的正极柱连接，另一个电芯端子120与电芯组件的负极柱连接，电芯端子120用于与汇流排300连接。
两个电芯端子120的形状可以相同，以图1中左端的电芯端子120为例，其包括第一连接部121和第二连接部122，第二连接部122与电芯组件连接，例如，第二连接部122平行于壳体110的左侧面设置，并与电芯组件左侧的极柱连接。第一连接部121与第二连接部122连接，且第一连接部121且向远离壳体110的方向延伸，也就是说，第一连接部121从壳体110的左侧面伸出，如此，汇流排300从上向下移动即可放置于第一连接部121上，便于沿竖直方向连接汇流排300与第一连接部121。
基于以上描述，本实施例的电芯端子120设置有从壳体110上伸出的第一连接部121，使得汇流排300与电芯端子120之间的连接部位能够调整至易于操作的位置，便于在单体电池100放置在箱体200内后再连接汇流排300。
在另一些实施例中，第一连接部121沿壳体110的长度方向延伸设置，也就是说，第一连接部121水平伸出，从而能够更好的承载汇流排300。第一连接部121与第二连接部122可以连接为一体结构，例如，电芯端子120为金属板，将金属板的一部分弯折后形成第一连接部121，未弯折的部分作为第二连接部122，此外，电芯端子120也可以是通过例如浇注成型等工艺形成的一体结构。
在另一些实施例中，电芯端子120的宽度不大于壳体110的宽度，也就是说，电芯端子120沿宽度方向的两侧均不会超出壳体110，便于多个单体电池100沿宽度方向紧密排列。能够理解的是，在不超出壳体110的情况下，电芯端子120的宽度可以接近于壳体110的宽度，以便增加第一连接部121与汇流排300之间的连接面积，加强对汇流排300的支撑。
本申请还提出了一种电池包，参照图3、图4，其包括箱体200、汇流排300与上述各实施例的单体电池100，箱体200的顶部具有开口，单体电池100能够通过该开口放入箱体200内。电池包还包括图中未示出的箱盖，箱盖能够与箱体200连接以封闭开口。
电池包包括多个单体电池100，多个单体电池100位于箱体200内，且沿宽度方向依次分布，相应的，电池包包括多个汇流排300，一个汇流排300分别连接相邻两个单体电池100的同一端的两个第一连接部121，从而实现各单体电池100的串联。如图3所示，当单体电池100位于箱体200内，且箱盖未连接在箱体200上时，汇流排300与第一连接部121的连接位置能够从开口露出，便于连接汇流排300与箱体200内的单体电池100。需要说明的是，连接位置能够从开口露出包括：连接位置位于箱体200外部的情形，以及连接位置位于箱体200内，且连接工具能够通过开口伸入箱体200内并接触连接位置的情形。
需要说明的是，为便于汇流排300与电芯端子120的连接，各第一连接部121的高度保持相等。
汇流排300与电芯端子120之间可以通过多种方式进行连接，作为二者连接的一种方式，汇流排300与电芯端子120之间通过焊接的方式连接，具体参照图5，由于竖直方向的空间不受限制，因此焊接设备可以从上方对汇流排300进行焊接。作为二者连接的另一种方式，汇流排300与电芯端子120之间通过螺纹紧固件连接，具体参照图6，电池包还包括螺纹紧固件500，螺纹紧固件500包括头部510与杆部520，头部510连接于杆部520的一端，头部510具有能够与工具配合的配合结构，例如一字槽、十字槽等，杆部520具有螺纹。相应的，第一连接部121具有螺纹孔124，汇流排300具有第三通孔320，螺纹孔124与第三通孔320对应设置。装配时，汇流排300先放置于第一连接部121上，并保证螺纹孔124与第三通孔320对正，然后将螺纹紧固件500的杆部520竖直穿过第三通孔320，并旋入螺纹孔124内， 螺纹紧固件500的头部510朝上设置以从开口露出，如此，工具能够从上方操作螺纹紧固件500的头部510，实现汇流排300与第一连接部121的固定。
参照图3、图4，箱体200包括底板210与侧板220，侧板220连接于底板210的周向，共同限定出放置单体电池100的腔体，需要说明的是，图3中仅示出了与电芯端子120对应设置的两块侧板220，在一些实施例中，当单体电池100放置并固定在底板210上时，侧板220低于第一连接部121，使得第一连接部121与汇流排300位于箱体200的外部，如此，连接工具除了能够从上方连接第一连接部121与汇流排300之外，还能够从侧向连接第一连接部121与汇流排300，从而进一步增加了连接工具的操作空间。需要说明的是，本实施例中，箱盖的边沿具有朝箱体200伸出的凸缘，且凸缘的伸出距离大于单体电池100高于侧板220的距离，以避免箱盖与单体电池100之间发生干涉。
在一些实施例中，参照图4与图5，第一连接部121具有第一通孔123，汇流排300具有第二通孔310，第一通孔123与第二通孔310对应设置，当汇流排300放置于第一连接部121时，第一连接部121与汇流排300之间可以通过第一通孔123与第二通孔310进行定位，便于进行后续的焊接。
在一些实施例中，参照图4与图5，第一连接部121连接于第二连接部122靠近开口的一端，例如图中的上端，可以便于将第一连接部121伸出在箱体200的外部，另一方面，即使第一连接部121位于箱体200的内部，与第一连接部121连接于其他位置(例如连接于第二连接部122的下端)相比，能够减少第一连接部121与开口之间的距离，进而减少连接工具伸入箱体200的距离。
在一些实施例中，参照图5与图6，电池包还包括绝缘件400，绝缘件400位于第二连接部122与箱体200之间，避免第二连接部122直接接触箱体200。以图5与图6所示为例，第二连接部122平行于箱体200的侧板220，绝缘件400覆盖在第二连接部122的外侧。此外，绝缘件400还能够实现单体电池100的壳体110与箱体200之间的隔离，同样以图5与图6所示为例，除了覆盖第二连接部122的第一部分之外，绝缘件400还包括位于分别位于第一部分的上下两侧的第二部分与第三部分，第二部分覆盖第二连接部122上方的壳体110，第三部分覆盖第二连接部122下方的壳体110。需要说明的是，绝缘件400也可以覆盖在箱体200的内壁，或者设置于壳体110与侧板220之间的间隙内。
所述上面结合附图对本申请实施例作了详细说明，但是本申请不限于上述实施例，在所属技术领域普通技术人员所具备的知识范围内，还可以在不脱离本申请宗旨的前提下作出各种变化。此外，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。

Claims (11)

  1. 单体电池，其特征在于，包括：
    壳体；
    电芯组件，位于所述壳体内；
    电芯端子，设置于所述壳体的一端，所述电芯端子包括第一连接部和第二连接部，所述第二连接部与所述电芯组件电连接，所述第一连接部与所述第二连接部连接且向远离所述壳体的方向延伸，所述第一连接部用于连接汇流排。
  2. 根据权利要求1所述的单体电池，其特征在于，所述第一连接部沿所述壳体的长度方向延伸设置。
  3. 根据权利要求1所述的单体电池，其特征在于，所述第一连接部与所述第二连接部连接为一体结构。
  4. 根据权利要求1所述的单体电池，其特征在于，所述电芯端子的宽度不大于所述壳体的宽度。
  5. 电池包，其特征在于，包括：
    箱体，顶部具有开口；
    权利要求1至4中任一项所述的单体电池，位于所述箱体内，所述单体电池设置有多个，多个所述单体电池沿宽度方向依次分布；
    汇流排，所述汇流排设置有多个，所述汇流排连接相邻两个所述第一连接部，且所述汇流排与所述第一连接部的连接位置能够从所述开口露出。
  6. 根据权利要求5所述的电池包，其特征在于，所述箱体包括侧板，所述侧板低于所述第一连接部。
  7. 根据权利要求5所述的电池包，其特征在于，所述电池包还包括绝缘件，所述绝缘件至少位于所述箱体与所述第一连接部之间。
  8. 根据权利要求6所述的电池包，其特征在于，所述第一连接部具有第一通孔，所述汇流排具有第二通孔，所述第一通孔与所述第二通孔对应设置，以使所述第一连接部与所述汇流排通过所述第一通孔与所述第二通孔进行定位。
  9. 根据权利要求5所述的电池包，其特征在于，所述第一连接部连接于所述第二连接部靠近所述开口的一端。
  10. 根据权利要求5所述的电池包，其特征在于，所述汇流排与所述第一连接部之间焊接固定，且所述汇流排与所述第一连接部之间的焊接部位能够从所述开口露出。
  11. 根据权利要求5所述的电池包，其特征在于，所述电池包还包括螺纹紧固件，所述螺纹紧固件包括头部与杆部，所述头部连接于所述杆部的一端，所述第一连接部具有螺纹孔，所述汇流排具有第三通孔，所述螺纹孔与所述第三通孔对应设置，所述杆部穿设于所述第三通孔，并与所述螺纹孔螺纹连接，所述头部能够从所述开口露出。
PCT/CN2022/144145 2022-06-13 2022-12-30 单体电池与电池包 WO2023241015A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150214530A1 (en) * 2014-01-28 2015-07-30 Samsung Sdi Co., Ltd. Battery pack
CN112055897A (zh) * 2018-12-26 2020-12-08 株式会社Lg化学 被构造成防止异物进入的电池模块以及包括其的电池组和机动车
CN214505729U (zh) * 2021-03-31 2021-10-26 蜂巢能源科技有限公司 电池模组、电池包以及车辆
CN114039172A (zh) * 2021-11-12 2022-02-11 欣旺达电动汽车电池有限公司 单体电池及电池包
CN216850226U (zh) * 2022-03-16 2022-06-28 中创新航科技股份有限公司 电池组

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150214530A1 (en) * 2014-01-28 2015-07-30 Samsung Sdi Co., Ltd. Battery pack
CN112055897A (zh) * 2018-12-26 2020-12-08 株式会社Lg化学 被构造成防止异物进入的电池模块以及包括其的电池组和机动车
CN214505729U (zh) * 2021-03-31 2021-10-26 蜂巢能源科技有限公司 电池模组、电池包以及车辆
CN114039172A (zh) * 2021-11-12 2022-02-11 欣旺达电动汽车电池有限公司 单体电池及电池包
CN216850226U (zh) * 2022-03-16 2022-06-28 中创新航科技股份有限公司 电池组

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