Novel battery module capable of discharging tabs from two sides and battery system

Abstract

The utility model discloses a novel battery module capable of discharging tabs from two sides and a battery system. The battery module comprises a battery module main body, the battery module main body comprises a plurality of battery cell modules; each battery cell module is provided with a soft package battery cell; tabs are respectively arranged on the front side and the rear side of each soft package battery cell; die-casting end plates are respectively arranged on the left and right sides of the battery module main body; a first insulating plate is arranged between the right side of the battery module main body and the adjacent die-casting end plate; a second insulating plate is arranged between the left side of the battery module main body and the adjacent die-casting end plate; an output side battery cell connecting assembly and a series side battery cell connecting assembly are respectively arranged on the front side and the rear side of the battery module main body; the plurality of soft package battery cells are connected in series through the output side battery cell connecting assembly and the series side battery cell connecting assembly, and current output is realized through the output side battery cell connecting assembly. According to the utility model, a plurality of soft package battery cells of which the tabs are formed on the two sides can be firmly and reliably assembled together, so that the battery module assembling efficiency and the overall structural strength are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a novel battery module and a battery system with double-sided electrode tabs. Background Art

[0002] Lithium-ion batteries have the advantages of high specific energy, many cycle times, long storage time, etc. They are widely used not only in portable electronic devices (such as mobile phones, digital video cameras, and laptop computers), but also in large and medium-sized electric devices such as electric vehicles, electric bicycles, and electric tools.

[0003] In order to meet the requirements of automobile manufacturers, limited by the vehicle chassis, the design of battery cells tends to be flattened, and it is required that the positive and negative electrode tabs are led out from both sides of the battery cell. For a battery module composed of multiple soft-pack batteries, due to structural limitations of the soft-pack battery cells, it is difficult to improve the grouping efficiency during the module assembly and welding process.

[0004] Currently, there is no battery module that can firmly and reliably assemble multiple soft-pack battery cells with double-sided electrode tabs together to ensure the grouping efficiency of the battery module and the overall structural strength of the battery module to meet the requirements of automobile manufacturers. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a novel battery module with double-sided electrode tabs in view of the technical defects existing in the prior art.

[0006] To this end, the utility model provides a novel battery module with double-sided electrode tabs, which includes a battery module main body;

[0007] The battery module main body includes a plurality of cell modules arranged longitudinally in parallel;

[0008] Each cell module is provided with a soft-pack battery cell;

[0009] Each soft-pack battery cell is provided with an electrode tab on each of its front and back sides;

[0010] On the left and right sides of the battery module main body, there is respectively provided a vertically distributed die-casting end plate;

[0011] A first insulating plate is provided between the right side of the battery module main body and the adjacent die-casting end plate;

[0012] A second insulating plate is provided between the left side of the battery module main body and the adjacent die-casting end plate;

[0013] On the front and back sides of the battery module main body, there are respectively provided an output-side cell connection assembly and a series-side cell connection assembly;

[0014] A plurality of soft-pack battery cells are connected in series through an output-side battery cell connection assembly and a series-side battery cell connection assembly, and current output is achieved through the output-side battery cell connection assembly.

[0015] In addition, the present utility model further provides a battery system, which includes the novel battery module with double-sided electrode tabs as described above.

[0016] As can be seen from the technical solutions provided by the present utility model above, compared with the prior art, the present utility model provides a novel battery module and a battery system with double-sided electrode tabs. Its structural design is scientific, and it can firmly and reliably assemble a plurality of soft-pack battery cells with double-sided electrode tabs together, ensuring the grouping efficiency of the battery module and the overall structural strength of the battery module to meet the requirements of automobile manufacturing enterprises, and has great practical significance in production. Description of the Drawings

[0017] Figure 1 It is a three-dimensional exploded decomposition schematic diagram of a novel battery module with double-sided electrode tabs provided by the present utility model;

[0018] Figure 2a It is a three-dimensional assembled structure schematic diagram of a transfer aluminum row and a plastic bracket in a novel battery module with double-sided electrode tabs provided by the present utility model; Figure 1 ;

[0019] Figure 2b It is the second three-dimensional assembled structure schematic diagram of a transfer aluminum row and a plastic bracket in a novel battery module with double-sided electrode tabs provided by the present utility model;

[0020] Figure 3 It is a three-dimensional assembled structure schematic diagram of a battery cell module in a novel battery module with double-sided electrode tabs provided by the present utility model;

[0021] Figure 4 It is a disassembled structure schematic diagram of a battery cell module in a novel battery module with double-sided electrode tabs provided by the present utility model;

[0022] Figure 5 It is a structure schematic diagram when a plurality of soft-pack battery cells are stacked in a novel battery module with double-sided electrode tabs provided by the present utility model;

[0023] Figure 6 It is a three-dimensional assembly schematic diagram of a novel battery module with double-sided electrode tabs provided by the present utility model. Detailed Embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0026] In the description of this patent, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise clearly and specifically defined.

[0028] See Figure 1 、 Figures 2a to 2b 、 Figures 3 to 6 , the present utility model provides a new type of battery module with double-sided tab output, including a battery module main body;

[0029] The battery module main body includes a plurality of battery cell modules 4 arranged longitudinally in parallel;

[0030] In each battery cell module 4, a soft-pack battery cell 9 is provided;

[0031] On the front and rear sides of each soft-pack battery cell 9, a tab is respectively provided (the tabs on both sides are the positive tab 901 and the negative tab 902 respectively);

[0032] A vertically distributed die-cast end plate 2 is provided on the left and right sides of the battery module body;

[0033] A first insulating plate 6 is provided between the right side of the battery module body and the adjacent die-cast end plate 2;

[0034] A second insulating plate 8 is provided between the left side of the battery module body and the adjacent die-cast end plate 2;

[0035] The front and rear sides of the battery module body are respectively provided with an output side cell connection (CCS) assembly 3 and a series side cell connection (CCS) assembly 7;

[0036] A plurality of soft-pack battery cells 9 are connected in series through an output-side battery cell connection (CCS) assembly 3 and a series-connection-side battery cell connection (CCS) assembly 7 , and current output is achieved through the output-side battery cell connection (CCS) assembly 3 .

[0037] In the present utility model, the specific implementation is as follows: Figure 3 , Figure 4 Each battery cell module 4 includes a soft-pack battery cell 9, a transfer aluminum bar 401 and a plastic bracket 402;

[0038] The tabs on the front and rear sides of the soft-pack battery cell 9 are respectively welded to a transfer aluminum bar 401;

[0039] Each transfer aluminum bar 401 is respectively arranged in an aluminum bar installation groove reserved on a plastic bracket 402 .

[0040] For specific implementation, see Figure 4 As shown, the transfer aluminum bar 401 is provided with two circular holes 4011 symmetrically distributed up and down;

[0041] The right side of the transfer aluminum bar 401 has a tab welding surface 4012;

[0042] The tab welding surface 4012 is welded to the tab on one side of the soft-pack battery cell 9 (specifically, laser welding);

[0043] A series row welding plane 4013 is provided at one end of the transfer aluminum bar 401 away from the soft-pack battery cell 9;

[0044] The series row welding plane 4013 is used for welding and connecting with the output side cell connection (CCS) assembly 3 or the series side cell connection (CCS) assembly 7 .

[0045] The plastic bracket 402 is provided with a cylindrical protrusion 4021 at a position corresponding to each circular hole 4011;

[0046] The cylindrical protrusion 4021 is embedded in the circular hole 4011 .

[0047] It should be noted that after the round hole 4011 passes through the cylindrical protrusion 4021, the aluminum row 401 and the plastic bracket 402 are formed into a component and integrated through ultrasonic hot melting.

[0048] It should be noted that the positive electrode tab 901 and the negative electrode tab 902 are placed on the tab welding surfaces 4012 of the two output aluminum rows 401 and fixed by laser welding.

[0049] Specifically, on the left and right sides of the soft-pack battery cell 9, there are respectively large cell surfaces 903.

[0050] Furthermore, at the upper and lower ends of the plastic bracket 402, a first groove 4023 and a boss 4022 are respectively symmetrically arranged on the left and right.

[0051] The first groove 4023 on the plastic bracket 402 of each battery cell module 4 is used for corresponding plug-in connection with the boss 4022 on the plastic bracket 402 of the adjacent battery cell module 4.

[0052] It should be noted that on both sides of the plastic bracket 402, there are symmetrically arranged a first groove 4023 and a boss 4022. When multiple battery cell modules 4 are stacked, the groove 4023 and the boss 4022 are mutually matched and limited.

[0053] Furthermore, at the upper and lower ends of the plastic bracket 402, a first through hole 4024 penetrating transversely is respectively arranged.

[0054] In the present utility model, specifically, at the four corner positions of the first insulating plate 6, a semi-circular notch 601 is respectively provided.

[0055] The semi-circular notch 601 is correspondingly arranged with the first through hole 4024 on the plastic bracket 402 of the battery cell module 4.

[0056] It should be noted that the insulating plate 6 is pasted on the double-sided adhesive foam buffer plate 5 and positioned through the semi-circular notch 601 and the first through hole 4024.

[0057] In the present utility model, specifically, on the front and back sides of the second insulating plate 8, two C-shaped notches 801 are symmetrically arranged.

[0058] The C-shaped notch 801 is correspondingly arranged with the boss 4022 on the plastic bracket 402 of the battery cell module 4.

[0059] The C-shaped notch 801 is clamped with the boss 4022 on the plastic bracket 402 of the adjacent battery cell module 4.

[0060] It should be noted that the insulating epoxy board 28 is pasted on the double-sided adhesive foam buffer plate 5 and positioned through the C-shaped notch 801 and the boss 4022.

[0061] In the present utility model, specifically, both the first insulating plate 6 and the second insulating plate 8 are insulating epoxy plates.

[0062] In the present utility model, specifically, a foam buffer plate 5 is respectively arranged between the first insulating plate 6 and the battery module main body and between the second insulating plate 8 and the battery module main body.

[0063] Furthermore, the left and right side surfaces of the foam buffer plate 5 respectively have adhesives.

[0064] Both sides of the foam buffer plate 5 are respectively bonded to one side of the first insulating plate 6 or the second insulating plate 8 and one side of the battery module main body.

[0065] In the present utility model, specifically, a foam buffer plate 5 is arranged between any two adjacent cell modules 4.

[0066] Furthermore, the left and right side surfaces of the foam buffer plate 5 respectively have adhesives.

[0067] Both sides of the foam buffer plate 5 are respectively bonded to the opposite sides of two adjacent cell modules 4. Specifically, the foam buffer plate 5 is bonded to the large surface 903 of the soft-pack cell 9 in the cell module 4.

[0068] It should be noted that specifically, the foam buffer plate 5 is a buffer plate made of PU foam (polyurethane foam) and is a double-sided adhesive plate.

[0069] In the present utility model, specifically, a second groove 201 is respectively arranged in the middle of the front and rear sides of the die-cast end plate 2.

[0070] The second groove 201 is used to arrange the module output support 1.

[0071] A second through hole 202 penetrating horizontally is respectively arranged at the four corner positions of the die-cast end plate 2.

[0072] The second through hole 202 on the die-cast end plate 2 is arranged corresponding to the first through hole 4024 on the plastic bracket 402 of the cell module 4.

[0073] The second insulating plate 8 is provided with an insulating plate through hole at a position corresponding to the first through hole 4024 on the plastic bracket 402 of the cell module 4.

[0074] The two die-cast end plates 2 and the front and rear ends of the battery module main body are respectively fixedly connected together by two fastening bolts (long bolts) distributed up and down.

[0075] It should be noted that one end of the screw rod of each fastening bolt, which is far away from the nut, is threadedly and fixedly connected to a fastening nut. The screw rod of the fastening bolt horizontally penetrates through the insulating plate through-hole on the second insulating plate 8 and the semi-circular notch 601 on the first insulating plate 6.

[0076] Further, the fastening bolt sequentially penetrates through the second through-hole 202 on the right-side die-casting end plate 2, the semi-circular notch 601 on the first insulating plate 6, the first through-hole 4024 on multiple battery cell modules 4, the insulating plate through-hole on the second insulating plate 8, and the second through-hole on the left-side die-casting end plate 2 from right to left, and then is threadedly and fixedly connected to a fastening nut.

[0077] Specifically, on the opposite sides (i.e., the outer sides) of the two die-casting end plates 2, there are respectively arranged criss-cross reinforcing ribs 203;

[0078] At the front and rear ends of each die-casting end plate 2, there are respectively arranged vertically penetrating oval through-holes 204, and two vertically penetrating and front-back symmetric third grooves 205;

[0079] It should be noted that the two die-casting end plates 2 are respectively placed on the outer sides of the first insulating plate 6 and the second insulating plate 8, and the second through-hole 202 is positioned with the first through-hole 4024;

[0080] It should be noted that the module output support 1 is placed in the second groove 201.

[0081] Specifically, the oval through-holes 204 are used for module fixing, for example, through fastening bolts, and are threadedly connected to the threaded holes reserved on the external battery module placement platform.

[0082] It should be noted that the criss-cross reinforcing ribs 203 on the die-casting end plate 2 play the roles of weight reduction and strengthening; the vertically penetrating oval through-holes 204 on the die-casting end plate 2 can be penetrated by long screw rods, thus playing the role of fixing the module; the two front-back symmetric third grooves 205 on the die-casting end plate 2 can place external fixtures, playing the role of restricting the module size, and facilitating the subsequent removal of the fixtures.

[0083] Specifically, an iron block 101 is embedded inside the module output support 1;

[0084] The iron block 101 is provided with three threaded holes (i.e., tapped threaded holes);

[0085] The iron block 101 is used for leading out current.

[0086] In the present utility model, specifically, as shown in Figure 1 the output-side cell connection (CCS) assembly 3 includes a positive output aluminum row 301, a negative output aluminum row 302, a first series aluminum row 303, and a first blister film 304 that are spaced apart from each other;

[0087] The upper and lower ends of the positive output aluminum bar 301, the negative output aluminum bar 302, and multiple first series-connected aluminum bars 303 are respectively fixedly connected together through a horizontally distributed first blister film 304.

[0088] The multiple first series-connected aluminum bars 303 are equally spaced.

[0089] The multiple first series-connected aluminum bars 303 are located between the positive output aluminum bar 301 and the negative output aluminum bar 302.

[0090] It should be noted that the first series-connected aluminum bar 303 is used to connect the pole ears (including a positive pole ear and a negative pole ear) with different polarities on the same side (i.e., the front side) of two soft-pack batteries 9 in two adjacent battery cell modules 4.

[0091] The positive output aluminum bar 301 is used to connect the positive pole ear 901 on the front side of the soft-pack battery 9 in the battery cell module 4 located on the rightmost side.

[0092] The negative output aluminum bar 302 is used to connect the negative pole ear 902 on the front side of the soft-pack battery 9 in the battery cell module 4 located on the leftmost side.

[0093] It should be noted that the positive output aluminum bar 301, the negative output aluminum bar 302, and the first series-connected aluminum bar 303 can be adjusted accordingly in terms of specification dimensions and quantity according to the series-parallel requirements of the module; the positive output aluminum bar 301, the negative output aluminum bar 302, and the first series-connected aluminum bar 303 are fixed into an integral component through the blister operation of the first blister films 304 on both sides.

[0094] Specifically, the output-side battery cell connection (CCS) component 3 is electrically conductively connected to the pole ears on the front side of the soft-pack battery 9 through the adapter aluminum bar 401 in the battery cell module 4.

[0095] Furthermore, the positive output aluminum bar 301 in the output-side battery cell connection (CCS) component 3 is welded to the adapter aluminum bar 401 at the front end of a battery cell module 4 directly behind it.

[0096] The negative output aluminum bar 302 in the output-side battery cell connection (CCS) component 3 is welded to the adapter aluminum bar 401 at the front end of a battery cell module 4 directly behind it.

[0097] Each first series-connected aluminum bar 303 in the output-side battery cell connection (CCS) component 3 is respectively welded to the adapter aluminum bars 401 at the front ends of two battery cell modules 4 directly behind it.

[0098] Further, the positive output aluminum bar 301, the negative output aluminum bar 302, and the first series aluminum bar 303 are specifically welded (fused together by laser welding) to the series row welding plane 4013 on the transfer aluminum bar 401 in the battery cell module 4.

[0099] Specifically, the positive output aluminum bar 301 in the output-side cell connection (CCS) assembly 3 is threadedly and fixedly connected to the iron block 101 in the module output support 1 on the die-cast end plate 2 directly behind it through three fastening screws.

[0100] The negative output aluminum bar 302 in the output-side cell connection (CCS) assembly 3 is threadedly and fixedly connected to the iron block 101 in the module output support 1 on the die-cast end plate 2 directly behind it through three fastening screws.

[0101] In the present utility model, specifically, the series-side cell connection (CCS) assembly 7 includes a plurality of second series aluminum bars 701 and a second blister film 702.

[0102] The plurality of second series aluminum bars 701 are equally spaced.

[0103] The upper and lower ends of the plurality of second series aluminum bars 701 are respectively fixedly connected together through a laterally distributed second blister film 702.

[0104] It should be noted that the second series aluminum bar 701 is used to connect the different-polarity ear tabs (including one positive ear tab and one negative ear tab) on the same side (i.e., the rear side) of two soft-pack battery cells 9 in two adjacent battery cell modules 4.

[0105] It should be noted that the second series aluminum bar 701 can adjust the specification size and quantity according to the series-parallel requirements; the second series aluminum bar 701 is fixed as a whole component through the second blister films 702 on both sides.

[0106] Specifically, the series-side cell connection (CCS) assembly 7 is electrically connected to the ear tabs on the rear side of the soft-pack battery cell 9 through the transfer aluminum bar 401 in the battery cell module 4.

[0107] Further, each second series aluminum bar 701 in the series-side cell connection (CCS) assembly 7 is respectively welded to the transfer aluminum bar 401 at the rear ends of the two battery cell modules 4 directly in front of it.

[0108] Further, the second series aluminum bar 701 is specifically welded (fused together by laser welding) to the series row welding plane 4013 on the transfer aluminum bar 401 in the battery cell module 4.

[0109] To more clearly understand the technical solution of the present utility model, the assembly process of the present utility model is described below.

[0110] First, if Figure 2a , Figure 2b As shown, the plastic bracket 402 is an open-mold plastic part to ensure the size and structural stability, and a boss 4022 is symmetrically provided in the middle of the plastic bracket 402. The transfer aluminum bar 401 is placed inside the plastic bracket 402, and the cylindrical protrusion 4021 passes through the circular hole 4011 for positioning, and the plastic bracket 402 and the transfer aluminum bar 401 are fixed as a whole by ultrasonic welding.

[0111] Then, if Figure 3 , Figure 4 As shown, the soft-pack battery cell 9 is placed inside an integrated component composed of two plastic brackets 402 and two transfer aluminum bars 401; the positive pole tab 901 and the negative pole tab 902 are placed on the tab welding surface 4012 of the two transfer aluminum bars 401 and fixed by laser welding; the double-sided adhesive foam buffer plate 5 is pasted on the large surface 903 of the battery cell to form an integral component (i.e., the battery cell module 4);

[0112] like Figure 5 As shown, according to the series and parallel requirements, multiple Figure 3 The battery cell modules 4 shown are stacked;

[0113] like Figure 1 As shown, the first insulating plate 6 and the second insulating plate 8 are placed Figure 5 The die-cast end plate 2 is placed outside the first insulating plate 6 and the second insulating plate 8, and then clamped with an existing clamping tool located outside; then, the module output support 1 is placed in the second groove 201 on the die-cast end plate 2; then, the output side cell connection (CCS) component 3 and the series side cell connection (CCS) component 7 are placed on the series row welding plane 4013 of the front and rear distributed transfer aluminum bars 401, and fixed by laser welding;

[0114] Through the above installation and fixation, a module structure can be realized in which the soft-pack battery cells with double-side output tabs are connected in series multiple times. The existing module structure can greatly improve the degree of automation and the module size matching is high.

[0115] It should be noted that for the existing conventional battery module assembly process, the soft-pack battery cells need to be pre-treated before welding. The conventional pre-treatment process includes tab cutting, tab flattening, passing the tab through the gap of the carrier component, tab bending, and tab flattening. Only after the above processing can welding be started. For the present invention, based on the technical solution of the present invention, the pre-treatment process required for the tabs of the present invention is tab cutting, tab flattening, and placing the battery cell. During the pre-treatment process, not only the number of processing steps is reduced, especially the tab does not need to pass through the gap of the carrier component as in the prior art (at this time, this step needs to be manually operated because the tab is relatively soft), which reduces the installation difficulty and makes automated assembly possible, and the efficiency is significantly improved.

[0116] In addition, for the present invention, the foam buffer plate 5 has double-sided adhesive, which can bond and pre-fix the battery cells to ensure dimensional accuracy. Especially when the whole is fixed and subjected to extrusion, the movement of the battery cells needs to overcome the shear force of the glue, and the shear force is stronger than the peel force. In addition, when the whole battery module is fixed in the PACK (battery pack, i.e., battery system), there is a thermally conductive structural adhesive between the battery module and the bottom of the battery box to achieve the functions of heat conduction and fixation. Through the above two solutions, the overall structural strength of the battery module can be effectively guaranteed.

[0117] In terms of specific implementation, for the present invention, the positive and negative distributions of the tabs on the soft-pack battery cell 9 can be arranged according to the series or series-parallel requirements of the actual battery module.

[0118] Based on the novel battery module with double-sided tab output provided by the above-mentioned present invention, the present invention also provides a battery system, including at least one novel battery module with double-sided tab output as described above.

[0119] In terms of specific implementation, when the battery system includes multiple novel battery modules, the multiple novel battery modules are connected in parallel, series, or series-parallel.

[0120] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A new type of battery module with double-sided tabs, characterized in that: including a battery module body; The battery module body comprises a plurality of battery cell modules (4) arranged in parallel in a longitudinal direction; Each battery cell module (4) is provided with a soft-pack battery cell (9); Each soft-pack battery cell (9) is provided with a pole ear on both the front and rear sides respectively; A vertically distributed die-cast end plate (2) is respectively provided on the left and right sides of the battery module body; A first insulating plate (6) is arranged between the right side of the battery module body and the adjacent die-cast end plate (2); A second insulating plate (8) is provided between the left side of the battery module body and the adjacent die-cast end plate (2); An output side battery cell connection assembly (3) and a series side battery cell connection assembly (7) are respectively arranged on the front and rear sides of the battery module body; A plurality of soft-pack battery cells (9) are connected in series via an output-side battery cell connection component (3) and a series-connection-side battery cell connection component (7), and current output is achieved via the output-side battery cell connection component (3).

2. The novel battery module with double-sided tabs as claimed in claim 1, characterized in that: Each battery cell module (4) comprises a soft-pack battery cell (9), a transfer aluminum bar (401) and a plastic bracket (402); The tabs on the front and rear sides of the soft-pack battery cell (9) are respectively welded to a transfer aluminum bar (401); Each transfer aluminum bar (401) is respectively arranged in an aluminum bar installation groove reserved on a plastic bracket (402).

3. The novel battery module with double-sided tabs as claimed in claim 2, characterized in that: The transfer aluminum bar (401) is provided with two circular holes (4011) symmetrically distributed up and down; The right side of the transfer aluminum bar (401) has a tab welding surface (4012); The tab welding surface (4012) is welded to the tab on one side of the soft-pack battery cell (9); A series row welding plane (4013) is provided at one end of the transfer aluminum bar (401) away from the soft-pack battery cell (9); A series row welding plane (4013) used for welding and connecting with an output side battery cell connection component (3) or a series side battery cell connection component (7); The plastic support (402) is provided with a cylindrical protrusion (4021) at a position corresponding to each circular hole (4011); The cylindrical protrusion (4021) is embedded in the circular hole (4011).

4. The novel battery module with double-sided tabs as claimed in claim 2, characterized in that: The upper and lower ends of the plastic bracket (402) are respectively symmetrically provided with a first groove (4023) and a boss (4022); The first groove (4023) on the plastic support (402) of each battery cell module (4) is used for correspondingly plugging with the boss (4022) on the plastic support (402) of an adjacent battery cell module (4); The upper and lower ends of the plastic bracket (402) are respectively provided with a first through hole (4024) extending transversely therethrough; and / or, A semicircular notch (601) is respectively provided at the four corners of the first insulating plate (6); The semicircular notch (601) is arranged corresponding to the first through hole (4024) on the plastic support (402) of the battery cell module (4); and / or, Two C-shaped notches (801) are symmetrically arranged on the front and rear sides of the second insulating plate (8); The C-shaped notch (801) is arranged correspondingly to the boss (4022) on the plastic support (402) of the battery cell module (4); The C-shaped notch (801) is snap-fitted to a boss (4022) on a plastic support (402) of an adjacent battery cell module (4).

5. The novel battery module with double-sided tabs as claimed in claim 1, characterized in that: A foam buffer plate (5) is provided between the first insulating plate (6) and the battery module body, and between the second insulating plate (8) and the battery module body, respectively; The left and right sides of the foam cushioning plate (5) are respectively provided with adhesive; Two sides of the foam buffer plate (5) are respectively bonded to one side of the first insulating plate (6) or the second insulating plate (8) and one side of the battery module body; and / or, A foam buffer plate (5) is provided between any two adjacent battery core modules (4); Furthermore, the left and right sides of the foam cushioning plate (5) are respectively provided with adhesive; Both sides of the foam buffer plate (5) are respectively bonded to opposite sides of two adjacent battery core modules (4).

6. The novel battery module with double-sided tabs as claimed in claim 1, characterized in that: A second groove (201) is respectively provided in the middle of the front and rear sides of the die-cast end plate (2); The second groove (201) is used to set the module output support (1); A second through hole (202) extending transversely therethrough is respectively provided at four corners of the die-cast end plate (2); The second through hole (202) on the die-cast end plate (2) is arranged correspondingly to the first through hole (4024) on the plastic support (402) of the battery cell module (4); The second insulating plate (8) is provided with an insulating plate through hole at a position corresponding to the first through hole (4024) on the plastic support (402) of the battery cell module (4); The two die-cast end plates (2) and the front and rear ends of the battery module body are fixedly connected together by two fastening bolts distributed up and down.

7. The novel battery module with double-sided tabs as claimed in claim 6, characterized in that: The fastening bolts are passed through the second through hole (202) on the right die-cast end plate (2), the semicircular notch (601) on the first insulating plate (6), the first through holes (4024) on the plurality of battery cell modules (4), the insulating plate through holes on the second insulating plate (8) and the second through holes on the left die-cast end plate (2) in sequence from right to left, and are then threadedly fixedly connected with a fastening nut; and / or, An iron block (101) is embedded inside the module output support (1); The iron block (101) is provided with three threaded holes; and / or, The two die-cast end plates (2) are respectively provided with crisscross reinforcing ribs (203) on opposite sides thereof; Each die-cast end plate (2) is respectively provided with a waist-shaped through hole (204) that penetrates vertically at both ends, and two third grooves (205) that penetrate vertically and are symmetrical in front and back.

8. The novel battery module with double-sided tabs as claimed in claim 1, characterized in that: An output-side battery cell connection assembly (3) comprises a positive electrode output aluminum bar (301), a negative electrode output aluminum bar (302), a first series-connected aluminum bar (303) and a first blister film (304) that are spaced apart from each other; The upper and lower ends of the positive electrode output aluminum bar (301), the negative electrode output aluminum bar (302) and the plurality of first series-connected aluminum bars (303) are respectively fixedly connected together by a transversely distributed first blister film (304); A plurality of first series-connected aluminum bars (303) are distributed at equal intervals; A plurality of first series-connected aluminum bars (303), located between the positive electrode output aluminum bar (301) and the negative electrode output aluminum bar (302); The positive electrode output aluminum bar (301), the negative electrode output aluminum bar (302) and the first series connection aluminum bar (303) are welded to the series connection welding plane (4013) on the transfer aluminum bar (401) in the battery cell module (4); The positive electrode output aluminum bar (301) is threadedly fixedly connected to the iron block (101) in the module output support (1) on the die-cast end plate (2) located directly behind it through three fastening screws; The negative electrode output aluminum bar (302) is threadedly fixedly connected to the iron block (101) in the module output support (1) on the die-cast end plate (2) located directly behind it through three fastening screws.

9. The novel battery module with double-sided tabs as claimed in claim 1, characterized in that: A series-side battery cell connection assembly (7), comprising a plurality of second series-connected aluminum bars (701) and a second blister film (702); A plurality of second series-connected aluminum bars (701) are distributed at equal intervals; The upper and lower ends of the plurality of second series-connected aluminum bars (701) are respectively fixedly connected together by a second blister film (702) distributed transversely; The second series aluminum bar (701) is welded to the series aluminum bar welding plane (4013) on the transfer aluminum bar (401) in the battery cell module (4).

10. A battery system, characterized in that: A novel battery module comprising double-sided output tabs as described in any one of claims 1 to 9.

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