CN115579563A - Battery module, battery package, power consumption device and equipment for manufacturing battery module - Google Patents
Battery module, battery package, power consumption device and equipment for manufacturing battery module Download PDFInfo
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- CN115579563A CN115579563A CN202211105382.5A CN202211105382A CN115579563A CN 115579563 A CN115579563 A CN 115579563A CN 202211105382 A CN202211105382 A CN 202211105382A CN 115579563 A CN115579563 A CN 115579563A
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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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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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
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
-
- 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
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery module, a battery pack, an electric device and equipment for manufacturing the battery module, and relates to the technical field of batteries. The battery module comprises a core assembly and a bottom plate; the battery cell assembly comprises a plurality of battery cells which are stacked, each battery cell is provided with a pole side and an explosion-proof side, a positive pole and a negative pole of each battery cell are arranged on the pole sides, and an explosion-proof valve of each battery cell is arranged on the explosion-proof side; the bottom plate package rubbing board body with accept the pipeline, the plate body is used for from explosion-proof side support electric core subassembly, the plate body and the relative position homoenergetic of every explosion-proof valve crack under the impact that corresponds electric core thermal runaway, accept the pipeline and set up in the back of plate body and a plurality of explosion-proof valve relative position for accept the melting material from corresponding electric core jet department when the plate body cracks. The battery module can effectively improve the safety performance and the service performance while controlling the cost.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery module, a battery pack, an electric device and equipment for manufacturing the battery module.
Background
Traditional battery module is piled up by a plurality of electric cores and is formed, and when any thermal runaway in a plurality of electric cores, easy diffusion to other electric cores. For this reason, prior art's battery module provides the thermal management structure that can adjust electric core temperature, can carry out the thermal management when thermal runaway appears in single electric core to reduce the probability of diffusing to other electric cores. However, providing a separate thermal management structure for cell thermal management may increase the cost of the battery module, and may even reduce the weight energy density of the battery module, affecting the performance of the battery module.
Disclosure of Invention
The invention aims to provide a battery module and a battery pack which have relatively high safety performance and service performance and can effectively control the production cost.
Another object of the present invention is to provide an electric device, which is powered by the battery pack or the battery module. Therefore, the novel adhesive has the advantages of high safety performance and usability and low cost.
Another object of the present invention is to provide an apparatus for manufacturing a battery module, which is used to manufacture the above battery module. Therefore, the apparatus also has the advantage of low cost.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a battery module including:
the battery comprises a battery assembly, wherein the battery assembly comprises a plurality of batteries which are stacked, each battery is provided with a pole side and an explosion-proof side, a positive pole and a negative pole of each battery are arranged on the pole sides, and an explosion-proof valve of each battery is arranged on the explosion-proof side;
the bottom plate comprises a plate body and accommodating pipelines, wherein the plate body is used for supporting the electric core assembly from an anti-explosion side, the position of the plate body relative to each anti-explosion valve can be split under the impact of thermal runaway of a corresponding electric core, and the accommodating pipelines are arranged on the back of the plate body relative to a plurality of anti-explosion valves and used for accommodating molten substances sprayed from the corresponding electric core when the plate body is split.
In an alternative embodiment, a split part is formed on the plate body opposite to each explosion-proof valve through a first stress line in an enclosing mode, and the projection of each explosion-proof valve in the direction perpendicular to the plate body completely falls into the corresponding split part.
In an alternative embodiment, at least one second stress line is also provided within the cleavage portion, the second stress line being connected to the first stress line.
In an optional embodiment, the second stress line is disposed in an arc or a straight line, and both ends of the second stress line are connected to the first stress line.
In an alternative embodiment, the thickness of the plate body is less than the thickness of the wall of the pipe for accommodating the pipeline;
and/or the presence of a gas in the atmosphere,
the thickness of the split portion is smaller than that of the plate body.
In an optional embodiment, the accommodating pipeline is provided with a drainage port, and a joint is detachably arranged at the drainage port.
In an optional embodiment, a lightening hole is formed in the position, which is not opposite to the explosion-proof valve, of the plate body.
In an optional embodiment, the battery module comprises a plurality of electric core assemblies, a plurality of explosion-proof valves of each electric core assembly are arranged in rows, and a containing pipeline is arranged on the back face of the opposite position of the bottom plate and each row of explosion-proof valves.
In optional embodiment, the battery module still includes two end plates, and two end plates set up respectively in the both ends of the orientation of piling up of a plurality of electric cores, and first mounting hole has all been seted up to every end plate, has seted up the second mounting hole on the corresponding position of bottom plate, and the battery module still includes the fastener that matches with first mounting hole quantity, and the fastener is used for passing behind first mounting hole and the second mounting hole that corresponds fastening the battery module in the installation face.
In an optional embodiment, the end plate has a first top end and a first bottom end, the first top end is arranged adjacent to the side of the pole column, the first bottom end is arranged adjacent to the explosion-proof side, the first bottom end is convexly provided with a limiting protrusion in the direction away from the first top end, and the end of the bottom plate is abutted to the limiting protrusion.
In an optional embodiment, the battery module further includes two side plates, the two side plates are respectively disposed at two ends of each battery cell in the width direction, each side plate has a second top end and a second bottom end, the second top end is disposed adjacent to the pole side, the second bottom end is disposed adjacent to the explosion-proof side, the second bottom end is provided with a bending support portion in a bending manner, and one side of the plate body departing from the battery cell is supported on the bending support portion.
In an optional embodiment, an embedded groove is formed in the plate body at a position opposite to the bending support portion, the embedded groove is a groove recessed towards the side of the pole column, the recessed depth is greater than or equal to the thickness of the bending support portion, and the bending support portion is inserted into the embedded groove.
In an optional embodiment, the battery module further includes a CCS assembly, the CCS assembly includes a wiring harness isolation plate, a connection bar and an FPC, the wiring harness isolation plate is disposed on the side of the electrode posts, openings exposing the positive electrode post and the negative electrode post of each electrical core are formed in the wiring harness isolation plate, the positive electrode post and the negative electrode post of each electrical core can stretch out through the corresponding openings, the positive electrode posts and the negative electrode posts of the plurality of electrical cores are electrically connected through the plurality of connection bars, and the FPC assembly is electrically connected with each connection bar.
In an alternative embodiment, a first heightening pad is arranged on one side of the wire harness isolation plate close to the pole side, and the height of the first heightening pad is smaller than or equal to the height of the positive pole and the negative pole of the battery cell.
In an optional embodiment, the FPC assembly includes an FPC main body and a plurality of connection pieces provided in one-to-one correspondence with the plurality of connection rows, each connection piece having one end connected to the FPC main body and the other end connected to a corresponding connection row;
one side of the FPC part close to the pole column side is provided with a second heightening pad, and the second heightening pad is used for enabling the connecting sheet and the corresponding connecting row to be located at the same horizontal height.
In an optional embodiment, the battery module further comprises a top plate, the top plate covers the CCS assembly, and the top plate is detachably matched with the wiring harness isolation plate.
In an alternative embodiment, one of the top plate and the harness isolation plate has a slide groove, and the other of the top plate and the harness isolation plate is in sliding fit with the slide groove.
In a second aspect, the present invention provides a battery pack comprising: one or more of the aforementioned battery modules.
In a third aspect, the present invention provides an electric device, which includes an electric mechanism, and the aforementioned battery module or the aforementioned battery pack, where the battery module or the battery pack is used to supply power to the electric mechanism.
In a fourth aspect, the present invention provides an apparatus for manufacturing a battery module, comprising:
the method comprises the steps of providing a module, wherein the module is used for providing an electric core assembly, the electric core assembly comprises a plurality of electric cores which are stacked, each electric core is provided with a pole side and an explosion-proof side, a positive pole and a negative pole of each electric core are arranged on the pole sides, and an explosion-proof valve of each electric core is arranged on the explosion-proof side; the providing module is also used for providing a bottom plate, the bottom plate comprises a plate body and a containing pipeline, and the containing pipeline is arranged on the plate body;
the mounting module is used for mounting the explosion-proof side of the electric core assembly on the plate body; the position that plate body and every explosion-proof valve are relative all can split under the impact of corresponding electric core thermal runaway, accept the pipeline and set up in the back of plate body and a plurality of explosion-proof valve relative position for accept the melting material from corresponding electric core injection department when the plate body splits.
The embodiment of the invention has at least the following advantages or beneficial effects:
an embodiment of the present invention provides a battery module including a core assembly and a base plate; the battery cell assembly comprises a plurality of battery cells which are stacked, each battery cell is provided with a pole side and an explosion-proof side, a positive pole and a negative pole of each battery cell are arranged on the pole sides, and an explosion-proof valve of each battery cell is arranged on the explosion-proof side; the bottom plate includes the plate body and accepts the pipeline, and the plate body is used for supporting the core subassembly from explosion-proof side, and the plate body can split under the impact that corresponds electric core thermal runaway with every explosion-proof valve relative position homoenergetic, accepts the pipeline and sets up in the back of plate body and a plurality of explosion-proof valve relative position for accept the melting material from corresponding electric core injection department when the plate body splits.
On one hand, the pole side and the explosion-proof side of the battery cell are separately arranged, so that electric-heat separation can be realized, the safety of the battery cell can be improved, the diffusion of the battery cell during thermal runaway can be reduced, and the safety performance of a battery module can be ensured; meanwhile, the plate body can crack when the battery core is out of control due to heat, so that the accommodating pipeline can accommodate molten substances, the splashing of the molten substances can be reduced, the influence of the out of control due to heat on other battery cores and other assemblies can be reduced, and the safety performance of the battery module can be further improved; on the other hand, the bottom plate both had been as the bearing structure who supports electric core subassembly, and the control structure who slows down electric core thermal runaway and stretch again can make full use of battery module original structure, reduces manufacturing cost, and can guarantee battery module compactness of structure, reduces battery module weight, improves battery module's energy density.
The embodiment of the invention also provides a battery pack which comprises the battery module. Therefore, the novel adhesive has the advantages of high safety performance and usability and low cost.
The embodiment of the invention also provides an electric device which supplies power through the battery pack or the battery module. Therefore, the novel fabric has the advantages of high safety performance and usability and low cost.
Embodiments of the present invention also provide an apparatus for manufacturing a battery module, which is used to manufacture the above-described battery module. Therefore, the apparatus also has the advantage of low cost.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a first schematic structural diagram of a battery module according to an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a battery module according to an embodiment of the present invention;
fig. 3 is an exploded view of a battery module according to an embodiment of the present invention;
fig. 4 is a first schematic structural diagram of a battery cell of a battery module according to an embodiment of the present invention;
fig. 5 is a second schematic structural diagram of a battery cell of the battery module according to the embodiment of the present invention;
fig. 6 is a first schematic structural diagram of a bottom plate of a battery module according to an embodiment of the present invention;
fig. 7 is a second schematic structural diagram of a bottom plate of a battery module according to an embodiment of the present invention;
fig. 8 is a third schematic structural diagram of a bottom plate of a battery module according to an embodiment of the present invention;
fig. 9 is a fourth schematic structural diagram of a bottom plate of a battery module according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a CCS assembly of a battery module according to an embodiment of the present invention;
fig. 11 is a schematic structural view of an FPC assembly of the battery module according to an embodiment of the present invention;
fig. 12 is a schematic structural view illustrating an end plate of a battery module according to an embodiment of the present invention;
fig. 13 is a schematic structural view of a side plate of a battery module according to an embodiment of the present invention.
Icon: 10-a battery module; 103-a backplane; 105-side plates; 107-end plate; 109-a top plate; 111-a plate body; 113-a containment duct; 114-a receiving cavity; 115-electric core assembly; 117-electric core; 119-CCS component; 121-positive post; 123-negative pole column; 125-liquid injection hole; 127-an explosion-proof valve; 129-circumferential flange; 131-a split; 133-first stress line; 135-second stress line; 137-an evacuation port; 139-a linker; 141-lightening holes; 143-first mounting holes; 145-second mounting hole; 147-a first top end; 149-a first bottom end; 151-limit protrusions; 153-second top end; 155-a second bottom end; 157-bending support parts; 159-embedded groove; 161-a harness isolation plate; 163-a connection row; 165-FPC part; 167-a first booster pad; 169-opening holes; 171-polar side; 173-explosion-proof side; 175-FPC body; 177-connecting pieces; 179-second booster pad.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the present product is conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the correlation technique, traditional battery module is piled up by a plurality of electric cores and is formed, and when any thermal runaway in a plurality of electric cores, easy diffusion is to other electric cores. For this reason, prior art's battery module provides the thermal management structure that can adjust electric core temperature, can carry out the thermal management when thermal runaway appears in single electric core to reduce the probability of diffusing to other electric cores. However, providing a separate thermal management structure for cell thermal management may increase the cost of the battery module, and may even reduce the weight energy density of the battery module, affecting the performance of the battery module.
In view of this, the present embodiment provides a battery module and a battery pack, which can utilize the original structure of the battery module to perform thermal management, so that the safety performance and the service performance can be effectively improved on the premise of ensuring the cost. The structure of the battery module and the battery pack will be described in detail below.
Fig. 1 is a first schematic structural diagram of a battery module 10 provided in this embodiment; fig. 2 is a second schematic structural diagram of the battery module 10 provided in this embodiment; fig. 3 is an exploded view of the battery module 10 according to the present embodiment; fig. 4 is a first schematic structural diagram of a battery cell 117 of the battery module 10 provided in this embodiment; fig. 5 is a second schematic structural diagram of the battery cell 117 of the battery module 10 provided in this embodiment. Referring to fig. 1 to 5, the present embodiment provides a battery module 10, which includes a battery cell assembly 115, a base plate 103, and a CCS assembly 119.
The cell assembly 115 includes a plurality of cells 117 stacked in a first direction (i.e., an ab direction in fig. 3, which is also a horizontal direction), and the first direction is a thickness direction of each cell 117. The width direction of each cell 117 is the cd direction in fig. 3, the height direction of each cell 117 is the ef direction in fig. 3, and along the ef direction, each cell 117 has a pole side 171 and an explosion-proof side 173, the pole side 171 is the upper side of the ef direction, the explosion-proof side 173 is the lower side of the ef direction, the positive pole 121 and the negative pole 123 of each cell 117 are disposed on the pole side 171, and the pole side 171 is further provided with a liquid injection hole 125 for injecting electrolyte. The burst-proof valve 127 of each cell 117 is disposed on the burst-proof side 173. Through setting up positive post 121 and negative pole post 123 in utmost point post side 171, set up explosion-proof valve 127 in explosion-proof side 173 for explosion-proof valve 127 and utmost point post separation, consequently reducible explosion-proof valve 127 erupts the influence of fused mass to electric core 117 itself and the utmost point post of neighbouring electric core 117 when electric core 117 thermal runaway, can improve the security of battery module 10 to a certain extent.
Fig. 6 is a first schematic structural diagram of a bottom plate 103 of the battery module 10 provided in this embodiment; fig. 7 is a second schematic structural diagram of the bottom plate 103 of the battery module 10 provided in this embodiment; fig. 8 is a third schematic structural diagram of the bottom plate 103 of the battery module 10 provided in this embodiment. Referring to fig. 3, 6 to 8, in the present embodiment, the bottom plate 103 is a supporting structure of the entire battery module 10. The bottom plate 103 includes a plate body 111 and a housing duct 113. The plate 111 is used for supporting the cell assembly 115 from the explosion-proof side 173 to ensure the safety and stability of each cell 117, thereby further ensuring the safety and stability of the battery module 10 and ensuring the normal operation of charging and discharging the battery module 10. Meanwhile, the plate 111 and each explosion-proof valve 127 can be cracked under the impact of thermal runaway of the corresponding battery cell 117, the accommodating pipe 113 is arranged on the back surface of the plate 111 opposite to the explosion-proof valves 127, and an accommodating cavity 114 is formed inside the accommodating pipe and used for accommodating the molten material sprayed from the corresponding battery cell 117 when the plate 111 is cracked. And, the receiving pipe 113 may be provided in a long rectangular structure to be simultaneously opposite to the plurality of explosion-proof valves 127 of each electric core module 115, so that one receiving pipe 113 is correspondingly provided to each electric core module 115. Of course, in other embodiments, the accommodating pipe 113 may have a cylindrical shape or other square shapes, which can serve the purpose of accommodating, and this embodiment is not limited.
On one hand, the plate 111 can be cracked when the battery cell 117 is out of control thermally, so that the accommodating pipeline 113 can accommodate molten substances, the splashing of the molten substances can be reduced, the influence of the out of control thermally on other battery cells 117 and other components can be reduced, and the safety performance of the battery module 10 can be further improved; on the other hand, the bottom plate 103 serves as a supporting structure for supporting the battery cell assembly 115 and also serves as a control structure for slowing down the thermal runaway propagation of the battery cell 117, the original structure of the battery module 10 can be fully utilized, the manufacturing cost is reduced, the structural compactness of the battery module 10 can be ensured, the weight of the battery module 10 is reduced, and the energy density of the battery module 10 is improved. Meanwhile, the bottom plate 103 can protect the explosion-proof side 173 of the battery cell 117, so as to reduce the probability of the explosion-proof valve 127 being damaged by impact, and the accommodating pipeline 113 is convexly arranged on the plate body 111, so that the convex structure can also be used as a buffer structure of the battery cell 117, that is, the original structure can be utilized to realize the buffer function of the battery cell 117, so as to further reduce the cost and ensure the safety performance of the battery cell 117.
It should be noted that, in order to ensure that the plate body 111 can smoothly support the explosion-proof side 173 of the battery cell 117, in this embodiment, a circumferential flange 129 is disposed on the circumference of the explosion-proof side 173 of the battery cell 117, a protruding direction of the circumferential flange 129 is a direction protruding away from the pole side 171, the explosion-proof side 173 is recessed due to the disposition of the circumferential flange 129, and the explosion-proof valve 127 can be located at a recessed portion of the recessed structure, so that the circumferential flange 129 can be attached to the plate body 111, and the direct contact between the explosion-proof valve 127 and the plate body 111 is reduced, so as to ensure the safety of the explosion-proof valve 127, and at the same time, a pressure relief space is also increased, so as to ensure the reliability and safety of the pressure relief operation.
It should be noted that, in the present embodiment, the battery module 10 may be configured to include a plurality of cell assemblies 115. A plurality of electric core assemblies 115 are commonly supported on one plate body 111, but each electric core assembly 115 individually uses one receiving duct 113. As shown in fig. 7, when the number of the electric core assemblies 115 is two, two electric core assemblies 115 are supported on the plate body 111, and the plurality of explosion-proof valves 127 of each electric core assembly 115 are arranged in rows, the back of the position of the bottom plate 103 opposite to each row of explosion-proof valves 127 is provided with a receiving pipe 113, and the receiving pipe 113 can receive the molten material discharged when the electric core assembly 115 in the corresponding position is out of thermal control. By the arrangement, the number of the accommodating pipelines 113 can be increased or reduced according to the number of the electric core assemblies 115, the cost is controllable, and the cost and the space are not wasted.
In addition, in order to further prevent the diffusion of thermal runaway, in this embodiment, a heat insulation pad may be further disposed between any two adjacent battery cells 117, the heat insulation pad may be made of a plastic material with good heat insulation performance, and the area of the heat insulation pad is adapted to the size of the large surface of the battery cell 117, so as to fully ensure the heat insulation effect, and thus reduce the diffusion of thermal runaway.
Referring to fig. 6 to 8 again, in order to ensure that the positions of the plate 111 opposite to each explosion-proof valve 127 can be cracked when the corresponding battery cell 117 is in thermal runaway, in the embodiment, the positions of the plate 111 opposite to each explosion-proof valve 127 are surrounded by the first stress line 133 to form the cracked portion 131, and the first stress line 133 is a line drawn or traced on the plate 111 in advance by a force with a preset intensity, and can be cracked when the force reaches a preset value (for example, an impact force when the normal battery cell 117 is in thermal runaway). And a projection of each explosion-proof valve 127 in a direction perpendicular to the plate body 111 (also in the ef direction in fig. 3) falls completely inside the corresponding cleavage portion 131.
On one hand, the first stress line 133 is arranged, so that the split part 131 is approximately elliptical, and the shape of the split part 131 can be matched with the elliptical shape of the conventional explosion-proof valve 127, so that the split part 131 can be split along the extension of the first stress line 133 when the explosion-proof valve 127 is decompressed, the purposes of decompressing and collecting molten materials are achieved, and the safety of the battery module 10 is ensured; on the other hand, the projection of each explosion-proof valve 127 in the direction perpendicular to the plate body 111 completely falls into the corresponding split part 131, which means that the circumferential area of the split part 131 is larger than that of the explosion-proof valve 127, so that when pressure relief is ensured, the molten material ejected from the whole explosion-proof valve 127 can be effectively introduced into the accommodating pipeline 113 through the hole formed after the split part 131 is split, the collection effect of the molten material can be ensured, the safety of the battery cell 117 and the battery module 10 can be further improved, and the diffusion of thermal runaway can be reduced. Meanwhile, through the establishment of the stress lines, compared with the adoption of an additional heat management structure, such as an external fire extinguishing agent spraying structure, no new impurities are introduced, the expenditure can be reduced, the cost can be controlled, and the safety performance and the service performance of the battery module 10 can be effectively ensured under the condition of ensuring lower cost.
As an alternative, referring to fig. 6 again, in the present embodiment, at least one second stress line 135 is further disposed in the cleavage portion 131, and the second stress line 135 is connected to the first stress line 133. The forming mode of second stress line 135 is the same as the forming mode of first stress line 133, makes splitting part 131 changeably split when electric core 117 thermal runaway through setting up of second stress line 135 to can guarantee the timeliness and the reliability of pressure release operation, can further improve battery module 10's security performance.
It should be noted that, in this embodiment, the second stress lines 135 are semicircular arcs, the number of the second stress lines 135 is two, the two second stress lines 135 are symmetrically disposed, the arc bottom positions of the two second stress lines intersect, and both ends of each second stress line 135 are connected to the first stress line 133. Through the setting of the second stress line 135 of two semicircular arc lines, can be convenient for split when electric core 117 thermal runaway, simultaneously, because the both ends of every second stress line 135 all intersect with first stress line 133, therefore can guarantee to split portion 131 regularity and controllability when splitting, guarantee the timeliness and the reliability of pressure release operation, can further improve battery module 10's security performance. Of course, in other embodiments, the shape of the second stress line 135 may also be adjusted according to requirements, for example, the second stress line may be provided in a straight line, and when the second stress line is provided as a straight stress line, the structure surrounded by the first stress lines 133 may be divided into two parts to sufficiently ensure the effect of splitting, which is not limited in this embodiment.
It should be noted that, referring to fig. 8 again, in order to ensure that the splitting portion 131 is easy to split and the accommodating tube 113 is not easy to break after being accommodated, in the present embodiment, the plate body 111 and the accommodating tube 113 can be limited in terms of both material and thickness. In a first aspect, the plate 111 is required to meet both the supporting requirement and the rupture requirement for supporting the cell 117, and therefore the plate 111 may be selected from a material with a lower melting point (e.g., 800 ℃) but a certain supporting strength, such as an aluminum alloy material, which can melt or rupture when the cell 117 is thermally out of control, so as to ensure that the rupture portion 131 can work normally. The receiving pipe 113 needs to be stably stored or drawn out after receiving a high-temperature molten material, and thus it needs to be made of a material having a high melting point (for example, higher than 1000 ℃), such as a steel material. Of course, the plate 111 and the accommodating duct 113 may be made of a material having a high melting point, and only the split portion 131 of the plate 111 may be made of a material having a low melting point, which will not be described herein. On the other hand, the thickness of the plate 111 can be reduced relative to the thickness of the pipe wall of the accommodating pipe 113, so as to satisfy the supporting requirement of the supporting cell 117 and the breaking requirement of the splitting part 131. For example, the thickness a of the plate 111 may be set to 2mm-5mm, and the thickness B of the wall of the accommodating pipe 113 may be set to 2.5mm-5.5mm, so as to ensure that B is greater than a. Of course, in other embodiments, the thickness of the plate body 111 and the thickness of the accommodating pipe 113 may also be set to be the same, and at this time, only the thickness of the split portion 131 needs to be set to be smaller than the thickness of the plate body 111, which is not described herein again.
Optionally, in this embodiment, a drain hole 137 is disposed on one side or both sides of the accommodating duct 113, in this embodiment, the drain hole 137 is disposed on one side, a connector 139 is detachably disposed at the drain hole 137, and the connector 139 can be connected to an external exhaust structure of the battery module 10 to discharge the molten material. Through the arrangement, when thermal runaway occurs, the internal air pressure of the accommodating pipeline 113 rises, and the internal air is pumped out of the pipeline through the drain port 137, so that the pipeline can be prevented from being damaged, the service life of the accommodating pipeline 113 can be prolonged, and the cost is reduced. Wherein, the connector 139 can be set as the connector 139 with electromagnetic valve, the electromagnetic valve can be selected as the one-way valve, to ensure that only the outer row can not be input inwards.
Further optionally, fig. 9 is a fourth schematic structural diagram of the bottom plate 103 of the battery module 10 provided in this embodiment. Referring to fig. 9, in the present embodiment, a lightening hole 141 is formed at a position of the plate body 111 not opposite to the explosion-proof valve 127. The lightening holes 141 may be through holes penetrating the plate body 111, or may be blind holes reduced in thickness with respect to the plate body 111. The shape of the lightening hole 141 may be rectangular, circular or other shapes. The number of the lightening holes 141 may be plural or one. For example, as shown in fig. 9, the lightening holes 141 are all long rectangular holes, the extending direction is the stacking direction of the battery cells 117, and the number of the long rectangular holes is three. The weight of the bottom plate 103 can be reduced through the lightening holes 141, so that the energy density of the battery module 10 is improved, and the battery core 117 can dissipate heat conveniently, so that the safety and the reliability of the battery module 10 can be further ensured.
It should be noted that a liquid cooling or water cooling structure may be further disposed at the position where the lightening hole 141 is formed, so as to dissipate heat from the battery cell 117, so as to sufficiently ensure the safety of the battery module 10, which is not described in detail in this embodiment.
Fig. 10 is a schematic structural diagram of a CCS assembly 119 of the battery module 10 according to the present embodiment; fig. 11 is a schematic structural view of the FPC 165 of the battery module 10 according to this embodiment. Referring to fig. 3, 10 and 11, in the present embodiment, since the number of the electrical core assemblies 115 is two, the number of the FPC 165 of the CCS assembly 119 is also two, but the two electrical core assemblies 115 may share one harness isolation plate 161 to save the cost. Meanwhile, one side of the wire harness isolation plate 161 close to the pole side 171 is provided with two first heightening pads 167, the number of the first heightening pads 167 is two, the two first heightening pads 167 are arranged at intervals, each first heightening pad 167 is in a strip sheet shape, and the height of the first heightening pad 167 is smaller than or equal to the height of the positive pole 121 and the negative pole 123 of the battery cell 117. Through the first setting that increases pad 167, can fill the space on the one hand, provide shock-absorbing function, on the other hand can also protect utmost point post, avoids utmost point post to stretch out too much to cause the risk of electrocution.
Alternatively, the FPC member 165 includes an FPC main body 175 and a plurality of connection pieces 177 provided in one-to-one correspondence with the plurality of connection rows 163. The FPC main body 175 is a flexible circuit board, the connection pieces 177 may be nickel pieces, and one end of each connection piece 177 is connected to the FPC main body 175 and the other end is connected to the corresponding connection row 163. The FPC 165 is provided with a second heightening pad 179 at a side close to the pole side 171, and the second heightening pad 179 serves to make the connection piece 177 at the same level as the corresponding connection row 163. The second heightening pad 179 can be also arranged in a long strip sheet type, and the contact surface of the connecting sheet 177 is consistent with the height of the upper surface of the connecting row 163 due to the arrangement of the second heightening pad 179, so that the convenience of connection and the reliability after connection can be ensured.
Further optionally, in order to protect the CCS assembly 119, in this embodiment, the battery module 10 further includes a top plate 109, the top plate 109 covers the CCS assembly 119, and the top plate 109 is detachably engaged with the harness isolation plate 161. On one hand, the CCS assembly 119 can be protected by arranging the top plate 109, so that the safety and stability of the CCS assembly 119 are ensured, and the normal operation of charging and discharging operations of the battery module 10 is ensured; on the other hand, the cooperation can be dismantled to top cap and pencil division board 161, can guarantee the stability of top cap, guarantees that the top cap can shelter from FPC spare 165 all the time to further improve battery module 10's security performance. Of course, in other embodiments, when the battery module 10 is further provided with the side plate 105 and the end plate 107, the top plate 109 may also be matched with the side plate 105 and the end plate 107 according to requirements, so as to further improve the safety and stability of the top plate 109, and the description is omitted here.
It should be noted that, in this embodiment, the matching manner of the top plate 109 and the wiring harness isolation plate 161 may be fastening, sliding groove fastening, gluing, etc., and when it is selected as sliding groove fastening, one of the top plate 109 and the wiring harness isolation plate 161 has a sliding groove, and the other of the top plate 109 and the wiring harness isolation plate 161 is in sliding fit with the sliding groove, which is not described in this embodiment again.
Fig. 12 is a schematic structural view of an end plate 107 of the battery module 10 according to the present embodiment. Referring to fig. 3 and 12, in the present embodiment, the battery module 10 further includes two end plates 107, the two end plates 107 are respectively disposed at two ends of the stacking direction of the plurality of battery cells 117, and an output electrode base is mounted on any one of the two end plates 107, and the output electrode base is used for mounting a connection row 163 serving as an output, so as to ensure stability and reliability of the charging and discharging operations of the battery module 10. Meanwhile, each end plate 107 is approximately in a thin-sheet rectangular structure, each end plate 107 is provided with a first mounting hole 143, each first mounting hole 143 is a long-strip hole penetrating through the bottom plate 103 from top to bottom along the ef direction, a second mounting hole 145 is formed in a corresponding position of the bottom plate 103, the battery module 10 further comprises fasteners matched with the first mounting holes 143 in number, the fasteners can be selected as fastening bolts, and the fasteners are used for fastening the battery module 10 on a mounting surface after penetrating through the first mounting holes 143 and the corresponding second mounting holes 145. Through setting up like this for the stability of end plate 107 and bottom plate 103 obtains improving, thereby can guarantee the security and the reliability of electric core subassembly 115, and simultaneously, the installation of the output pole base of also being convenient for guarantees battery module 10 charge-discharge operation's stability and reliability.
In detail, each end plate 107 has a first top end 147 and a first bottom end 149 in the ef direction. The first top end 147 is an upstream end in the ef direction, and the first bottom end 149 is a downstream end in the ef direction. And the first top end 147 is disposed adjacent the pole side 171 and the first bottom end 149 is disposed adjacent the blast resistant side 173. The first bottom end 149 is provided with a stopper projection 151 protruding in a direction away from the first top end 147, and the end of the plate body 111 of the bottom plate 103 abuts against the stopper projection 151. That is, can realize the ascending spacing of plate body 111 through setting up of fastener, can also realize the ascending spacing of plate body 111 and location through spacing protruding 151 to can fully guarantee the stability of plate body 111, and then can guarantee whole battery module 10's stability, reliability and security.
It should be noted that, one or more limiting protrusions 151 may be disposed on each end plate 107, or only one of the two end plates 107 may be disposed with the limiting protrusion 151, so as to sufficiently ensure the stability and reliability of the plate body 111, which is not limited in this embodiment.
As an alternative, fig. 13 is a schematic structural diagram of a side plate 105 of the battery module 10 provided in this embodiment. Referring to fig. 3 and 13, in the present embodiment, the battery module 10 further includes two side plates 105. Two curb plates 105 set up respectively in every electric core 117 width direction's both ends, but curb plate 105 and end plate 107 arc welding also can bond the cooperation, can set up between curb plate 105, roof 109 and the end plate 107 and connect the cooperation relation to guarantee the stability of whole frame, here is no longer repeated. Simultaneously, along the ef direction, every curb plate 105 all has second top 153 and second bottom 155, second top 153 is the ascending upper end of ef side, second bottom 155 is the ascending lower extreme of ef side, the adjacent utmost point post side 171 setting in second top 153, the adjacent explosion-proof side 173 setting in second bottom 155, second bottom 155 buckles and is provided with bending support portion 157, bending support portion 157 is spoon column structure, one side that plate body 111 deviates from electric core 117 supports in bending support portion 157. By supporting the plate body 111 on the bending support portion 157, the stability and reliability of the plate body 111 can be further improved, and the stability of the entire frame can be improved, so as to ensure the stability, safety and reliability of the core assembly 115.
It should be noted that, along the extending direction of the side plates 105, the side plates 105 are provided with a plurality of bending supporting portions 157 at intervals, and the plurality of bending supporting portions 157 can ensure the stability and reliability of each position in the length direction of the plate body 111, thereby sufficiently ensuring the stability and reliability of the core assembly 115.
Further alternatively, referring to fig. 6, fig. 7 and fig. 13 again, in the present embodiment, an insertion groove 159 is formed at a position of the plate 111 opposite to the bending supporting portion 157. The insertion groove 159 is a groove recessed toward the pole side 171, the recessed depth is greater than or equal to the thickness of the bending support portion 157, and the bending support portion 157 is inserted into the insertion groove 159. By the provision of the insertion groove 159, the fitting of the side plate 105 to the bottom plate 103 is made tighter and more reliable, the frame of the entire battery module 10 is made more stable, and the safety performance of the battery module 10 is made higher. Meanwhile, the depth of the insertion groove 159 is set so that the bent support portion 157 does not protrude from the rear surface of the battery module 10, thereby reducing damage, and ensuring the service life of the entire battery module 10 to save cost.
It should be noted that, in this embodiment, heat insulation pads may be disposed between the side plate 105 and the battery cell 117 and between the end plate 107 and the battery cell 117 as required, so as to ensure the safety of the battery cell 117 and further improve the safety performance and the usability of the battery module 10, which is not limited in this embodiment.
The present embodiment also provides a battery pack including one or more of the above battery modules 10. And when it includes a plurality of the above-described battery modules 10, the connection rows 163 of the plurality of battery modules 10 are electrically connected. Since the battery module 10 has advantages of low cost, high safety performance and usability, the battery pack also has advantages of high safety performance and usability, and low cost.
The embodiment of the invention further provides an electric device, which comprises an electric mechanism, and the battery module 10 or the battery pack. The electricity utilization mechanism can be selected from a vehicle, a ship, a spacecraft and the like. The electric mechanism can be powered by the battery pack or the battery module 10. Therefore, the novel adhesive has the advantages of high safety performance and usability and low cost.
An embodiment of the present invention also provides an apparatus for manufacturing a battery module, which is used to manufacture the above-described battery module 10. The apparatus for manufacturing a battery module includes a providing module and a mounting module. Wherein, a module is provided for providing the cell assembly 115, the cell assembly 115 includes a plurality of cells 117 arranged in a stack, and each cell 117 has a pole side 171 and an explosion-proof side 173, the positive pole 121 and the negative pole 123 of each cell 117 are arranged on the pole side 171, and the explosion-proof valve 127 of each cell 117 is arranged on the explosion-proof side 173; the providing module is also used for providing a bottom plate 103, the bottom plate 103 comprises a plate body 111 and a containing pipeline 113, and the containing pipeline 113 is arranged on the plate body 111; the mounting module is used for mounting the explosion-proof side 173 of the electric core assembly 115 to the plate body 111; the plate 111 and each explosion-proof valve 127 are located at positions opposite to each other and can be cracked under the impact of thermal runaway of the corresponding battery cell 117, and the accommodating pipeline 113 is arranged on the back of the plate 111 and the positions opposite to the explosion-proof valves 127 and used for accommodating the molten material sprayed from the corresponding battery cell 117 when the plate 111 is cracked. The apparatus can produce the battery module 10 having advantages of low cost, high safety performance and high usability.
It should be noted that, in the embodiment of the present invention, the apparatus for manufacturing a battery module is an apparatus for providing and installing to form the battery module 10, and the structure and the operation principle of the apparatus are adjusted and changed with the structural design of the battery module 10, for example, when the electric core assembly 115 of the battery module 10 includes a plurality of electric cores 117 arranged in a stacked manner, the providing module includes a manufacturing structure for manufacturing the electric cores 117, the installing module includes a stacked structure for stacking the electric cores 117 together, for example, when the bottom plate 103 of the battery module 10 is provided with the receiving conduit 113, the providing module includes a molding structure for molding the receiving conduit 113 on the bottom plate 103, and the installing module includes an installing structure for opposing the receiving conduit 113 to the explosion-proof valve 127. For some other related structures besides the providing module and the installing module of the device for manufacturing the battery module, for example, a cell and module cleaning structure, a welding structure, a module testing and detecting structure, etc., the embodiment of the present invention is not described in detail again.
The following describes in detail the mounting process, the operation principle and the beneficial effects of the battery module 10 according to the embodiment of the present invention, by taking the structure shown in fig. 3 as an example:
when this battery module 10 carries out the installation operation, can be earlier with the end plate 107 that does not set up the output pole base and bottom plate 103 carry out the equipment cooperation, then pile up a plurality of electric cores 117 and set up on the plate body 111 of bottom plate 103, make explosion-proof valve 127 of electric core 117 relative with the part 131 that splits on the plate body 111, and install remaining end plate 107 that has the output pole base in plate body 111, then install the pencil division board 161 and the connector bank 163 of CCS subassembly 119 in the utmost point post side 171 of electric core 117, peg graft curb plate 105 with bottom plate 103, and weld with end plate 107, carry out module extrusion operation, install FPC spare 165 afterwards, it can with the cooperation of pencil division board 161 finally to go on the top cap.
In the above process, on one hand, the pole side 171 and the explosion-proof side 173 of the battery cell 117 are separately arranged, so that electric-thermal separation can be realized, the safety of the battery cell 117 can be improved, diffusion during thermal runaway of the battery cell 117 can be reduced, and the safety performance of the battery module 10 can be ensured; meanwhile, the plate body 111 can be cracked when the battery cell 117 is out of control by heat, so that the accommodating pipeline 113 can accommodate molten substances, and can also reduce splashing of the molten substances, and can reduce the influence of the out of control by heat on other battery cells 117 and other components, so as to further improve the safety performance of the battery module 10; on the other hand, the bottom plate 103 serves as a supporting structure for supporting the battery cell assembly 115 and also serves as a control structure for slowing down the thermal runaway propagation of the battery cell 117, the original structure of the battery module 10 can be fully utilized, the manufacturing cost is reduced, the structural compactness of the battery module 10 can be ensured, the weight of the battery module 10 is reduced, and the energy density of the battery module 10 is improved.
In summary, the embodiments of the present invention provide a battery module 10 and a battery pack with relatively high safety performance and usability, and can effectively control the production cost. The embodiment of the invention provides an electric device which is powered by the battery pack or the battery module 10. Therefore, the novel adhesive has the advantages of high safety performance and usability and low cost. An embodiment of the present invention provides an apparatus for manufacturing a battery module, which is used to manufacture the above-described battery module 10. Therefore, the apparatus also has the advantage of low cost.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (20)
1. A battery module, comprising:
the battery core assembly comprises a plurality of battery cores which are stacked, each battery core is provided with a pole column side and an explosion-proof side, a positive pole column and a negative pole column of each battery core are arranged on the pole column sides, and an explosion-proof valve of each battery core is arranged on the explosion-proof side;
the bottom plate comprises a plate body and accommodating pipelines, wherein the plate body is used for supporting the battery cell assembly from the explosion-proof side, the position, corresponding to the explosion-proof valve, of the plate body can be cracked under the impact of thermal runaway of the battery cell, and the accommodating pipelines are arranged on the back face, corresponding to the positions, corresponding to the explosion-proof valves, of the plate body and used for accommodating the molten substances corresponding to the positions sprayed by the battery cell when the plate body is cracked.
2. The battery module according to claim 1, wherein:
the plate body and every all enclose through first stress line and establish on the position that explosion-proof valve is relative and be formed with the part that splits, and every explosion-proof valve is in the perpendicular to the projection in the direction of plate body falls into the correspondence completely in the part that splits.
3. The battery module according to claim 2, wherein:
at least one second stress line is further arranged in the splitting part and connected with the first stress line.
4. The battery module according to claim 3, wherein:
the second stress line is arranged in an arc shape or a straight line, and two end parts of the second stress line are connected with the first stress line.
5. The battery module according to claim 2, wherein:
the thickness of the plate body is smaller than the thickness of the pipe wall of the accommodating pipeline;
and/or the presence of a gas in the gas,
the thickness of the cleavage part is smaller than that of the plate body.
6. The battery module according to any one of claims 1 to 5, wherein:
the accommodating pipeline is provided with a drain outlet, and a joint is detachably arranged at the drain outlet.
7. The battery module according to any one of claims 1 to 5, wherein:
and lightening holes are formed in the plate body at positions which are not opposite to the anti-explosion valve.
8. The battery module according to any one of claims 1 to 5, wherein:
the battery module includes a plurality of electricity core subassembly, every a plurality of electricity core subassembly the explosion-proof valve is row's setting, the bottom plate all is provided with one with every row the back of explosion-proof valve relative position accept the pipeline.
9. The battery module according to any one of claims 1 to 5, wherein:
the battery module is characterized by further comprising two end plates, wherein the two end plates are arranged at two ends of the stacking direction of the battery cores respectively, each end plate is provided with a first mounting hole, the corresponding position of the bottom plate is provided with a second mounting hole, the battery module further comprises fasteners matched with the first mounting holes in number, and the fasteners are used for penetrating through the first mounting holes and the corresponding second mounting holes and then fastening the battery module on a mounting surface.
10. The battery module according to claim 9, wherein:
the end plate has first top and first bottom, first top is close to the utmost point post side sets up, first bottom is close to explosion-proof side sets up, first bottom is to keeping away from the protruding spacing arch that is equipped with of direction on first top, the tip of bottom plate with spacing protruding butt.
11. The battery module according to any one of claims 1 to 5, wherein:
the battery module is characterized by further comprising two side plates, wherein the two side plates are arranged at two ends of the width direction of the battery cell respectively and are provided with a second top end and a second bottom end respectively, the second top end is adjacent to the pole column side, the second bottom end is adjacent to the explosion-proof side, the second bottom end is provided with a bending supporting portion in a bending mode, and one side of the battery cell is supported on the bending supporting portion.
12. The battery module according to claim 11, wherein:
the plate body with the embedded groove has been seted up to the relative position of supporting part of buckling, the embedded groove be to the sunken recess of utmost point post side, and sunken degree of depth is more than or equal to the thickness of supporting part of buckling, the supporting part of buckling with the embedded groove is pegged graft.
13. The battery module according to any one of claims 1 to 5, wherein:
the battery module still includes the CCS subassembly, the CCS subassembly includes pencil division board, connector bar and FPC spare, the pencil division board set up in the utmost point post side, set up on the pencil division board and expose every the trompil of the anodal post of electric core and negative pole post, every the anodal post of electric core and negative pole post homoenergetic are through corresponding the trompil is stretched out, and is a plurality of the anodal post and the negative pole post of electric core are through a plurality of the connector bar electricity is connected, FPC spare and every the equal electricity of connector bar is connected.
14. The battery module according to claim 13, wherein:
the pencil division board is close to one side of utmost point post side is provided with the first pad that increases, just the first height that increases the pad is less than or equal to the height of the positive post of electric core and negative pole post.
15. The battery module according to claim 13, wherein:
the FPC part comprises an FPC main body and a plurality of connecting pieces which are arranged in one-to-one correspondence with the connecting rows, one end of each connecting piece is connected with the FPC main body, and the other end of each connecting piece is connected with the corresponding connecting row;
one side of the FPC part close to the pole side is provided with a second heightening pad, and the second heightening pad is used for enabling the connecting piece and the corresponding connecting row to be located at the same horizontal height.
16. The battery module according to claim 13, wherein:
the battery module further comprises a top plate, the top plate cover is arranged outside the CCS assembly, and the top plate is detachably matched with the wiring harness isolation plate.
17. The battery module according to claim 16, wherein:
one of the top plate and the wire harness isolation plate has a slide groove, and the other of the top plate and the wire harness isolation plate is in sliding fit with the slide groove.
18. A battery pack comprising one or more battery modules according to any one of claims 1 to 17.
19. An electric device, comprising:
an electricity utilization mechanism;
the battery module of any one of claims 1 to 17, or the battery pack of claim 18, the battery module or the battery pack being configured to power the electricity consuming mechanism.
20. An apparatus for manufacturing a battery module, comprising:
the method comprises the steps of providing a module, wherein the module is used for providing an electric core assembly, the electric core assembly comprises a plurality of electric cores which are arranged in a stacked mode, each electric core is provided with a pole column side and an explosion-proof side, a positive pole column and a negative pole column of each electric core are arranged on the pole column side, and an explosion-proof valve of each electric core is arranged on the explosion-proof side; the providing module is also used for providing a bottom plate, the bottom plate comprises a plate body and a containing pipeline, and the containing pipeline is arranged on the plate body;
the mounting module is used for mounting the explosion-proof side of the electric core assembly on the plate body; the position of the plate body opposite to each explosion-proof valve can be cracked under the impact of thermal runaway of the corresponding battery cell, and the containing pipeline is arranged on the back of the position of the plate body opposite to the explosion-proof valves and used for containing the molten material sprayed from the corresponding battery cell when the plate body is cracked.
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| CN202211105382.5A CN115579563A (en) | 2022-09-09 | 2022-09-09 | Battery module, battery package, power consumption device and equipment for manufacturing battery module |
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| CN113161674A (en) * | 2021-02-19 | 2021-07-23 | 上海兰钧新能源科技有限公司 | Battery pack and electric vehicle |
| CN214227064U (en) * | 2021-03-08 | 2021-09-17 | 蜂巢能源科技有限公司 | Battery pack and energy storage unit |
| CN114094240A (en) * | 2021-09-29 | 2022-02-25 | 岚图汽车科技有限公司 | Design method of battery and battery |
| CN216958403U (en) * | 2021-12-27 | 2022-07-12 | 江苏正力新能电池技术有限公司 | Battery core and battery module |
| CN217062334U (en) * | 2022-02-23 | 2022-07-26 | 蜂巢能源科技股份有限公司 | Battery pack |
| CN114843697A (en) * | 2022-07-04 | 2022-08-02 | 广东采日能源科技有限公司 | Battery module |
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| CN110600787A (en) * | 2019-09-30 | 2019-12-20 | 芜湖天弋能源科技有限公司 | Power battery mould group becomes device |
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