• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an electrical energy store (1), in particular for an electric vehicle, which has a plurality of electrically interconnected, in particular flat and substantially plate-shaped battery cells (4a, 4b), which in at least one stack (3a, 3b) next to each other or one above the other in each case two adjacent battery cells (4a, 4b) have cell planes (4 ', 4 ") arranged essentially parallel to one another and are stacked with alternating polarities of the cell poles (++, -). It is proposed that at least two stacks (3a, 3b) of battery cells (4a, 4b) are arranged next to one another, wherein in each case one battery cell (4a) of a first stack (3a) and one battery cell (4b) of a second stack (3b) common cell plane (4 ', 4 ") are arranged and are electrically connected in series.
    公开号:AT512028A1
    申请号:T1485/2011
    申请日:2011-10-13
    公开日:2013-04-15
    发明作者:Kurt Ing Klammler；Martin Michelitsch；Harald Stuetz；Dietmar Niederl；Oliver Urem
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    1 56250 ·· ··· «i« * * ft * ·
    The invention relates to an electrical energy storage, in particular for an electric vehicle, which has a plurality of electrically interconnected, in particular flat and substantially plate-shaped battery cells, which are arranged in at least one stack next to each other or one above the other, each two adjacent battery cells arranged substantially parallel to each other Cell levels and are stacked with alternating polarities of the cell poles.
    From DE 10 2009 035463 Al a battery with a plurality of flat substantially plate-shaped battery single cells is known. The battery cells are stacked in a cell stack and surrounded by a battery case. The individual battery cells are formed in frame flat construction with metallic sheets and a frame made of insulating material.
    Also known from WO 2008/048751 A2 is a battery module with a multiplicity of plate-shaped battery cells arranged side by side in a stack, which are accommodated in a housing.
    WO 2010/053689 A2 describes a battery arrangement with a housing and a plurality of lithium-ion cells, which are arranged next to one another. The housing is flowed through for cooling with a thermally conductive, electrically insulating fluid.
    EP 1 530 247 A2 describes a battery having a plurality of stacks of battery cells stacked on top of each other, wherein two adjacent battery cells of a stack with alternating polarities are arranged one on top of the other and serially connected in series in a serpentine manner. Each stack is further electrically connected in series with the adjacent stack. The disadvantage is that many individual steps are required for the assembly and the production of the electrical connections and many individual parts for the battery.
    The object of the invention is to reduce the assembly costs for an electrical energy storage.
    According to the invention this is achieved in that at least two stacks of battery cells are arranged side by side, wherein each one battery cell 2 * * Ι · Μ · a first stack and a battery cell eiaeszvieitert St'apfclsrin biner * ······· fl * common cell plane arranged are and are electrically connected in series.
    It is preferably provided that unlike cell poles of two adjacent battery cells arranged in a cell plane of adjacent stacks face each other.
    It is particularly advantageous if at least one first group of battery cells arranged in a first cell plane is electrically connected in series with at least one second group of battery cells arranged in a second cell plane, wherein the second cell plane is arranged parallel to the first cell plane, preferably adjacent thereto ,
    At least one first stack and at least one second stack of battery cells can form a common battery module, wherein preferably the battery lines of stacked in the common battery module stack between two each for the stack common end plates are arranged. At least two adjacent battery modules can be electrically interconnected within the electrical energy storage.
    The electrical connection between the battery cells can advantageously be done by clinch connections.
    The interconnection of the cells thus does not take place within a single stack, that is to say along the stack, but instead takes place in a serpentine fashion, transversely to and fro, between two adjacent stacks. This type of circuit arrangement has the advantage that the cell poles of the pouch cells can first be aligned vertically during assembly in order to be able to be connected directly to each other or via cell connectors using the method of clinching. Thereafter, the cell poles can be folded, bent or aligned in a certain predefined (same for all cell poles) direction.
    It is preferably provided that each battery cell consists of at least two parallel-connected basic cells. Each battery cell thus has a parallel circuit of two arranged within a pouch cell base cells (2p circuit). In an analogous way, 3p and 4p circuits of 3 • ♦
    Basic cells for the battery cells realized weeden, ivcibet three trier basic cells • · · · · · - are connected in parallel.
    The invention is explained in more detail below with reference to FIGS.
    1 shows a battery module of an energy store according to the invention in an oblique view from above and FIG. 2 shows the detail II of the battery module from FIG. 1.
    The energy storage device 1 formed by a rechargeable battery has at least one battery module 2. Each battery module 2 has in the interior at least two stacks 3a, 3b of juxtaposed plate-shaped battery cells 4a, 4b (pouch cells), which are pressed by pressure plates 5 to each other. Each battery cell is designed as a double cell, wherein a 2p circuit (parallel connection of two basic cells) can be provided within a double cell.
    In each case two stacked in the stacking direction 3 'or juxtaposed battery cells 4a and 4b of each stack 3a and 3b have substantially parallel to each other arranged Zeliebenen 4' and are stacked with alternating polarities ++ / -.
    The two stacks 3a, 3b are arranged next to one another, wherein in each case one battery cell 4a of a first stack 3a and one battery cell 4b of a second stack 3b are arranged in a common cell plane 4 '. Two adjacent battery cells 4a, 4b of adjacent stacks 3a, 3b arranged in one cell plane 4 'are rectified (ie all cell poles have "++" pointing in one direction) - unlike cell poles "++". or adjacent battery cells facing each other - and electrically connected in series.
    At least a first group A of battery cells 4a, 4b arranged in a first cell level 4 'is connected to at least one second group B of in an adjacent second cell level 4 " arranged battery cells 4a, 4b are electrically connected in series, the second cell level 4 " is arranged parallel and adjacent to the first cell level 4 '. 4
    The energy storage device 1 can have a plurality of battery cells 2, wherein adjacent battery modules 2 are interconnected electrically in series or in parallel via connectors 6.
    The electrical connection of interconnected battery cells 4 a, 4 b is advantageously carried out by clinch connections 7.
    The interconnection of the battery cells 4a, 4b thus does not take place within a single stack 3a, 3b, that is to say along the stack 3a, 3b, but takes place serpentinely back and forth between two adjacent stacks 3a, 3b. This type of circuit arrangement has the advantage that the cell poles ++, - of the pouch cells 4a, 4b can be aligned vertically at first during assembly in order to be connected directly to each other or via cell connectors 8 using the method of clinching can. Thereafter, the cell poles 4a, 4b can be folded, bent or aligned in a specific predefined direction (identical for all cell poles 4a, 4b). This makes it possible, for example, to fix a cooler on the cell poles ++ / - the pouch cells with the largest possible area or the largest possible cross-section, for example, to glue.
    In the exemplary embodiment, the invention is shown with reference to 2p circuits, which transversely between the two stacks 3a, 3b back and forth. It is equally possible to implement two stacks 3a, 3b, so-called 3p or 4p circuits, in which three or four basic cells are connected in parallel instead of two adjacent basic cells in a battery cell 4a4b of a stack 3a, wherein a serial connection to the second stack 3b takes place.
    权利要求:
    Claims (8)
    [1]
    1. Electrical energy storage device (1), in particular for an electric vehicle, which has a multiplicity of electrically interconnected, in particular flat, substantially plate-shaped battery cells (4a, 4b), which are arranged side by side or one above the other in at least one stack (3a, 3b), wherein in each case two adjacent battery cells (4a, 4b) have cell planes (4 ', 4 ") arranged substantially parallel to one another and with alternating polarities of the cell poles (++, -) are stacked, characterized in that at least two stacks (3a, 3b) of battery cells (4a, 4b) are arranged side by side, wherein in each case a battery cell (4a) of a first stack (3a) and a battery cell (4b) of a second stack (3b) are arranged in a common cell plane (4 ', 4 ") and are electrically connected in series.
    [2]
    2. energy store (1) according to claim 1, characterized in that unequal cell poles (++, -) each of two in a cell level (4 ', 4 ") arranged adjacent battery cells (4a. 4b) of adjacent stacks (3a, 3b) facing each other.
    [3]
    3. Energy store (1) according to claim 1 or 2, characterized in that at least a first group (A) arranged in a first cell level (4 ') battery cells (4a, 4b) with at least a second group (B) of in a 4 c) are electrically connected in series, the second cell plane (4 ") being arranged parallel to, preferably adjacent to, the first cell plane (4 ').
    [4]
    4. energy store (1) according to one of claims 1 to 3, characterized in that at least a first stack (3a) and at least a second stack (3b) of battery cells (4a, 4b) belong to a common battery module (2).
    [5]
    5. energy store (1) according to claim 4, characterized in that the battery cells (4a, 4b) arranged in the common battery module (2) stacks (3a, 3b) between two in each case for the stack (3a, 3b) common pressure plates (5 ) are arranged. 6 6 έ Φ Φ · Φ ·· φ Φ Φ Φ
    [6]
    6. energy storage device (1) according to claims 4 ojlei; S ^ d ^ dpcch 'characterized, φ · φφ · * φ φ φ φ * ♦ · that at least two adjacent battery module (2) are electrically interconnected.
    [7]
    7. Energy store (1) according to one of claims 1 to 6, characterized in that at least two electrically interconnected battery cells (4a, 4b) by a clinch connection (8) are electrically connected to each other.
    [8]
    8. energy store (1) according to one of claims 1 to 7, characterized in that each battery cell (4a, 4b) consists of at least two parallel-connected basic cells.

    2011-10-13 Fu
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
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    AT504402012A| AT512029A3|2011-10-13|2012-10-11|Electric energy storage|
    EP12784487.6A| EP2766941B1|2011-10-13|2012-10-11|Electrical energy accumulator|
    PCT/EP2012/070191| WO2013053842A1|2011-10-13|2012-10-11|Electrical energy accumulator|
    KR1020147012769A| KR102068108B1|2011-10-13|2012-10-11|Electrical energy accumulator|
    CN201280050307.1A| CN103999256B|2011-10-13|2012-10-11|Accumulator|
    JP2014535080A| JP6106679B2|2011-10-13|2012-10-11|Electric energy accumulator|
    US14/351,409| US20140302360A1|2011-10-13|2012-10-11|Electrical energy accumulator|
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