CN115395170B - Battery module for a vehicle, vehicle and method for producing a battery module - Google Patents

Battery module for a vehicle, vehicle and method for producing a battery module Download PDF

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Publication number
CN115395170B
CN115395170B CN202211198275.1A CN202211198275A CN115395170B CN 115395170 B CN115395170 B CN 115395170B CN 202211198275 A CN202211198275 A CN 202211198275A CN 115395170 B CN115395170 B CN 115395170B
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CN
China
Prior art keywords
battery module
front side
side cover
voltage signal
pole
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Active
Application number
CN202211198275.1A
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Chinese (zh)
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CN115395170A (en
Inventor
陆珂伟
葛海龙
李钊
孙昌瑞
陈秋云
李雪萌
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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Priority to CN202211198275.1A priority Critical patent/CN115395170B/en
Publication of CN115395170A publication Critical patent/CN115395170A/en
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Classifications

    • 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
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6553—Terminals or leads
    • 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
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

Abstract

The application provides a battery module for a vehicle, comprising: a package assembly having an interior cavity; and a battery cell assembly configured to be disposed in the interior cavity of the package assembly; wherein, the encapsulation subassembly includes: the shell forms the top surface, the bottom surface, the left side surface and the right side surface of the packaging assembly; a front side cover forming a front side of the package assembly; and a rear side cover forming a rear side of the package assembly; wherein the housing, front side cover and rear side cover are configured to together define and enclose an interior cavity of the enclosure assembly; and wherein the front side cover includes: a front side cover body configured to be adapted to be connected to the case and having thermal conductivity so as to facilitate heat dissipation of the battery module; the front side voltage signal acquisition electrode is connected to the front side cover body; the battery cell component is electrically communicated with and dissipates heat to the voltage signal acquisition electrode through the voltage sampling sheet. The application also provides a manufacturing method and a vehicle.

Description

Battery module for a vehicle, vehicle and method for producing a battery module
Technical Field
The present application relates to a battery module, and more particularly, to a battery module for a vehicle. Additionally, the application relates to a vehicle. Additionally, the present application relates to a method of manufacturing a battery module.
Background
In the field of vehicle manufacturing, new energy vehicles are being vigorously developed. Many new energy vehicles use electrical energy as the motive power (e.g., full power or at least a portion of the motive power) to drive the vehicle. Thus, batteries have been introduced as a source of power to provide this.
However, the batteries used in the prior art still have a number of problems. For example, the heat dissipation capability of the battery is still deficient. This drawback is particularly pronounced in situations where rapid charging of the vehicle is required. For example, this may result in the inability to quickly, effectively, and efficiently dissipate heat generated inside the battery during the required time. Failure to dissipate heat in a timely manner can have serious adverse effects on the battery, even on vehicles incorporating such batteries (e.g., performance degradation, reduced life, reduced safety, and high cost, etc.).
One of the reasons for this problem is that the battery module itself is limited in structure, which results in that the battery module cannot sufficiently use all surfaces for heat dissipation. In the prior art, it has never been proposed to use the face provided with the connection terminals as a heat transfer face, and thus, the entire six-face heat transfer of the battery module cannot be achieved. For example, in the structure of a battery module of the related art, since there are poles, explosion-proof valves, bus bars, and/or low-voltage harnesses, etc., at the parts located inside the battery module near the top surface of the battery module, the top surface of the battery module cannot serve as an effective heat dissipation surface.
This prior art design affects the heat dissipation efficiency of the battery module and thus limits further increases in the fast charge rate. The resulting increase in charging time is highly desirable.
In view of, but not limited to, the above, it would be desirable to provide a novel battery module to overcome at least the above problems.
Disclosure of Invention
The present application aims to provide a battery module which is advantageous in at least one respect over the prior art.
To this end, the present application provides, in one aspect, a battery module for a vehicle, including: a package assembly having an interior cavity; and a battery cell assembly configured to be disposed in the interior cavity of the package assembly; wherein the package assembly comprises: the shell forms a top surface, a bottom surface, a left side surface and a right side surface of the packaging assembly; a front side cover forming a front side of the package assembly; and a rear side cover forming a rear side of the package assembly; wherein the housing, front side cover and rear side cover are configured to together define and enclose an interior cavity of the enclosure assembly; and wherein the front side cover includes: a front side cover body configured to be adapted to be connected to a housing and having thermal conductivity so as to facilitate heat transfer of the battery module; the front side voltage signal acquisition pole is connected to the front side cover body; the battery cell assembly is electrically communicated with the voltage signal acquisition electrode and conducts heat transfer with the voltage signal acquisition electrode through the voltage sampling sheet, so that the top surface, the bottom surface, the left side surface, the right side surface, the front side surface and the rear side surface of the packaging assembly (X) form six heat transfer surfaces for heat dissipation and heating of the battery module.
Optionally, in one embodiment, the battery module further includes: a thermally conductive fill medium positioned between the cells and the housing of the cell assembly and facilitating heat transfer from the cells and the housing.
Optionally, in one embodiment, the plurality of cells of the cell assembly are connected to each other in series and/or parallel without the need for a buss bar.
Optionally, in one embodiment, the rear side cover is provided with a rear side voltage signal acquisition pole configured to be adapted to acquire a voltage signal indicative of a voltage value of the battery cell.
Optionally, in one embodiment, the rear side cover is provided with a rear side explosion-proof valve configured to facilitate avoiding explosion of the battery module.
Optionally, in one embodiment, the front side cover further includes a battery module positive output electrode and a battery module negative output electrode; and wherein the battery module positive output pole is configured to be adapted to be in electrical communication with a battery cell assembly body positive output pole of the battery cell assembly and the battery module negative output pole is configured to be adapted to be in electrical communication with a battery cell assembly body negative output pole of the battery cell assembly.
Optionally, in one embodiment, the front side cover further comprises an electrical isolation member, and wherein the electrical isolation member is disposed between the battery module positive output pole and the front side cover body and is configured to electrically isolate the front side cover body relative to the battery module positive output pole.
Optionally, in one embodiment, the front side cover further comprises an electrical isolation component, and wherein the electrical isolation component is disposed between the front side voltage signal acquisition pole and the front side cover body and is configured to electrically isolate the front side cover body relative to the front side voltage signal acquisition pole.
The present application may also include, in another aspect, a vehicle comprising: at least one battery module for a vehicle as described above; and a vehicle body configured to be suitable for mounting a battery module thereon.
The present application may also include, in yet another aspect, a method of manufacturing a battery module, wherein the battery module is the battery module for a vehicle described above.
Six sides (i.e., all outer sides) of the battery module according to the present application can serve as effective heat transfer surfaces (a heat radiating surface and a heating surface). This not only increases the area for outward heat dissipation, but also reduces the thermal resistance of the overall system. In this way, heat generated in the battery module can be effectively, efficiently and safely dissipated outward during the process of charging the battery module, particularly during the rapid charging of the battery module. This design is particularly advantageous in vehicle designs where rapid charging is required. In addition, this design also has the beneficial effect of heating the battery module to raise its temperature when it encounters low temperatures. For example, in a scenario requiring heating, six sides (i.e., all outer surfaces) of the battery module may also serve as heating surfaces, facilitating rapid warm-up of the battery module. In addition, the battery module of the application is only connected with the voltage signal acquisition electrode in an electric communication way through the voltage sampling sheet (without any wire harness and/or buffer piece), and the battery cell assembly is directly in heat transfer with the voltage signal acquisition electrode, so that the battery module is compact in structure and high in heat transfer efficiency. On the other hand, in the battery module according to the present application, the plurality of battery cells are electrically connected to each other in series and/or parallel without a bus plate or the like. This further facilitates an integrated, compact structural design, and increases the efficiency of the battery module itself and the systems in which the battery module resides.
Drawings
Fig. 1 illustrates a battery module according to one embodiment of the present application, wherein a package assembly is shown.
Fig. 2 shows an exploded view of a battery module according to an embodiment of the present application.
Fig. 3 illustrates a battery module according to one embodiment of the present application, wherein the cell assembly is shown and the package assembly is omitted.
Fig. 4a illustrates the inner and outer sides of the front side cover of the battery module according to one embodiment of the present application.
Fig. 4b illustrates the inner and outer sides of the rear side cover of the battery module according to an embodiment of the present application.
Fig. 5 shows a longitudinal section of a cell assembly of a battery module according to one embodiment of the present application.
Fig. 6 shows a cross-section of a cell assembly of a battery module according to one embodiment of the present application.
Fig. 7 shows a configuration of a plurality of battery modules according to an embodiment of the present application.
Detailed Description
Some possible embodiments of the present application are described below with reference to the accompanying drawings. It is noted that the figures are not drawn to scale. Some details may be exaggerated for clarity of presentation and some details not necessarily shown have been omitted.
The application discloses a battery module. Such a battery module is particularly suitable for use in and powering a vehicle. Therefore, such a battery module may also be referred to as a power battery module.
As shown in fig. 1 and 2, a battery module M according to an embodiment of the present application is shown. Battery module M may include a package assembly X and a cell assembly 800. The package assembly X is formed to function to seal the battery assembly 800 and to enhance the structural strength of the battery module M.
As shown in fig. 1, a package assembly X of a battery module M is shown. The package assembly X has an internal cavity and the cell assembly is disposed in the internal cavity.
The package assembly X may include a housing 5. The housing 5 forms the top, bottom, left and right sides of the package assembly X.
Preferably, the material constituting the housing 5 may include a material having a high thermal conductivity; optionally a metal-containing material; such as a metal material, an alloy material, or the like; specific examples are aluminum, steel, etc.
The encapsulation assembly X may further comprise a front side cover 1 and a rear side cover 9. The front side cover 1 and the rear side cover 9 are configured to be adapted to be arranged opposite to each other. The front side cover 1 forms the front side of the package assembly. The rear cover 9 forms the rear side of the package assembly X.
The housing 5, front side cover 1 and rear side cover 9 are configured to together define and enclose an interior cavity of the enclosure assembly X.
As shown in fig. 3, a cell assembly 800 of a battery module according to one embodiment of the present application is shown. The cell assembly may include a cell assembly body 802, and a cell assembly body positive output pole 801 and a cell assembly body negative output pole 803 extending from the cell assembly body 802, respectively. The battery module body 802 is capable of storing electrical energy for use as a power source. The electrical energy stored in the cell assembly body 802 is output outward via the cell assembly body positive output pole 801 and the cell assembly body negative output pole 803 to provide power for driving the vehicle.
As shown in fig. 4a, which illustrates the front side cover 1 of the battery module according to an embodiment of the present application, wherein the left side portion of fig. 4a illustrates the front side cover 1 as seen from the outside inward, and the right side portion of fig. 4a illustrates the front side cover 1 as seen from the inside outward.
The front side cover 1 may include a front side cover body 104. The front side cover body 104 is configured and adapted to be connected to the housing 5. The front side cover body 104 is configured to facilitate heat dissipation. In this way, at least a portion of the heat inside the battery module M may be released to the outside of the battery module M through the front side cover body 104, thereby facilitating the reduction of the temperature of the battery module M.
Preferably, the material comprising the front side cover body 104 may comprise a material having a relatively high thermal conductivity. Alternatively, the material comprising the front side cover body 104 may comprise a metal-containing material. For example, the material comprising the front side cover body 104 may include aluminum alloy, steel, and/or (some specific) plastic, etc. In this way, heat dissipation can be facilitated. It is also preferred that the front side cover body 104 be further configured with an electrically isolating coating (e.g., electrically isolating paint) and/or an electrically isolating film. In this way, adverse effects such as leakage of electricity can be prevented.
The front side cover 1 may further include a battery module positive output pole 101 and a battery module negative output pole 102. The battery module positive output pole 101 and the battery module negative output pole 102 are respectively connected to the front side cover body 104. The battery module positive output pole 101 is configured to be adapted to be in electrical communication with the cell assembly body positive output pole 801. The battery module negative output pole 102 is configured to be adapted to be in electrical communication with the cell assembly body negative output pole 802. By this configuration, the battery module positive output pole 101 and the battery module negative output pole 102 can output the electric energy stored in the battery module body 802 to the outside to provide the power for driving the vehicle, using the electrical communication between the battery module positive output pole 101 and the battery module body positive output pole 801 and the electrical communication between the battery module negative output pole 102 and the battery module body negative output pole 802.
Preferably, the battery module positive output electrode 101 may have a protrusion protruding toward the internal chamber.
Such a projection facilitates the manufacturing process. In addition, the presence of such protrusions may allow the battery module positive output pole 101 to more effectively electrically communicate to the cell assembly body positive output pole 801.
Preferably, the battery module negative output pole 102 may have a protrusion protruding toward the internal chamber.
Such a projection facilitates the manufacturing process. In addition, the presence of such protrusions may enable the battery module negative output pole 102 to more effectively electrically communicate to the cell assembly body negative output pole 802.
The front side cover 1 may further include a front side voltage signal acquisition pole 103. The front side voltage signal sampling electrode 103 is connected to the front side cover body 104; for example, the front side voltage signal sampling electrode 103 is directly fixed to the front side cover body 104; for another example, the front side voltage signal sampling electrode 103 is indirectly fixed to the front side cover body 104. Optionally, the front side voltage signal sampling electrode 103 is arranged between the battery module positive output electrode 101 and the battery module negative output electrode 102.
The front side voltage signal acquisition pole 103 is configured to be adapted to acquire a voltage signal indicative of a voltage value of the cell assembly body 802. In this manner, via the front side voltage signal sampling pole 103, the voltage values of the cell assemblies and/or one or more cells in the battery module M can be obtained and/or monitored, facilitating awareness of the battery module M by the vehicle and/or the person using the vehicle, thereby facilitating prediction of the situation and/or taking corresponding action.
The front side voltage signal sampling pole 103 is additionally configured to facilitate heat dissipation. In this way, at least a portion of the heat inside the battery module M may be released to the outside of the battery module M through the front-side voltage signal sampling electrode 103, thereby facilitating the lowering of the temperature of the battery module M.
Preferably, the front side voltage signal acquisition pole 103 may have a protrusion protruding towards the interior chamber. The presence of such protrusions may enable the front side voltage signal acquisition pole 103 to more effectively and/or more conveniently acquire the voltage values of the cell assemblies and/or one or more cells in the battery module M.
As shown in fig. 4a, the front side voltage signal sampling pole 103 is configured as one voltage signal sampling pole. In an embodiment not shown, the front side voltage signal sampling pole 103 may be a plurality of voltage signal sampling poles.
In embodiments where the front side voltage signal sampling pole 103 is a plurality of voltage signal sampling poles, the number of the plurality of voltage signal sampling poles may be configured to correlate to the number of cells in the cell assembly body 802. For example, the number of voltage signal sampling poles may be equal to the number of cells. For another example, the number of voltage signal sampling poles may be less than the number of cells. As another example, the number of voltage signal sampling poles may be equal to the number of cells minus 1.
In embodiments where the front side voltage signal sampling pole 103 is a plurality of voltage signal sampling poles, the arrangement of the plurality of voltage signal sampling poles may be configured to correlate to the arrangement of the cells in the cell assembly body 802. For example, adjacent two voltage signal sampling poles among the plurality of voltage signal sampling poles may be arranged equidistantly apart. For another example, the plurality of voltage signal sampling poles may be arranged in parallel. For another example, the plurality of voltage signal sampling poles may be staggered. In addition, it is understood that the arrangement of the plurality of voltage signal sampling poles may be any suitable combination of the above.
The front side cover 1 may further include a front side explosion proof valve 105. The front side explosion proof valve 105 may be configured to be connected to the front side cover body 104. The configuration of the front-side explosion protection valve 105 to the battery module M may be advantageous in avoiding explosion of the battery module, and in particular, in avoiding explosion caused by the excessively high temperature of the battery module M.
In an alternative embodiment, the front side explosion proof valve 105 may be configured remotely from the battery module positive output pole 101, the battery module negative output pole 102, and/or the front side voltage signal sampling pole 103.
In an alternative embodiment, the front side explosion proof valve 105 may be a plurality of front side explosion proof valves.
In embodiments where the front side explosion proof valve 105 is a plurality of front side explosion proof valves, the plurality of front side explosion proof valves may be configured to be associated with the cell assembly body 802 and/or the cells in the cell assembly body 802. For example, the number of the plurality of front side explosion protection valves may correspond to the number of cells in the cell assembly body 802. For another example, the positioning of the plurality of front side explosion protection valves may correspond to the positioning of the cells in the cell assembly body 802. For another example, the arrangement of the plurality of front side explosion proof valves may correspond to the arrangement of the cells in the cell assembly body 802.
The battery cell assembly body 802 may include a plurality of battery cells. Each cell has a cell positive output pole and a cell negative output pole. In two adjacent electric cores, the electric core positive output electrode of one electric core is electrically communicated with the electric core negative output electrode of the other electric core. When the battery module M outputs electric power to provide power, the temperature at the junction of such positive and negative output poles may rise sharply.
In one embodiment, the front side explosion proof valve 105 may be configured to be disposed at or near the junction of such positive and negative output poles. In this way, the safety of the battery module M can be further improved.
The front side cover 1 may further comprise an electrically isolating member 106. The electrical isolation member 106 may be disposed between the battery module positive output electrode 101 and the front side cover body 104. The electrical isolation member 106 may also be arranged to electrically isolate the front side cover body 104 relative to the battery module positive output pole 101. In this way, it is possible to prevent the current for supplying power, which is transmitted through the battery module positive output electrode 101, from leaking to the front side cover body 104, thereby improving the safety of the battery module M.
Additionally, alternatively or additionally, the electrical isolation member 106 may also be disposed between the battery module negative output pole 102 and the front side cover body 104. The electrical isolation member 106 may also be arranged to electrically isolate the front side cover body 104 relative to the battery module negative output pole 102. In this way, it is possible to prevent the current for supplying power, which is transmitted through the battery module negative output electrode 101, from leaking to the front side cover body 104, thereby improving the safety of the battery module M.
In addition, the electrical isolation member 106 may alternatively or additionally be arranged between the front side voltage signal sampling electrode 103 and the front side cover body 104. The electrical isolation member 106 may also be arranged to electrically isolate the front side cover body 104 relative to the front side voltage signal sampling pole 103. In this way, it is possible to prevent current transmitted through the front-side voltage signal sampling electrode 103 for providing a voltage signal from leaking to the front-side cover body 104, thereby improving the safety of the battery module M.
In one embodiment, it is understood that the electrical isolation member 106 is necessary when the material comprising the front side cover body 104 is an electrically conductive material (e.g., metal, among others). In another embodiment, it is understood that where the material comprising the front side cover body 104 is a non-conductive material (e.g., plastic, among others), the electrical isolation member 106 is not necessary, and preferably, the electrical isolation member 106 may be omitted.
The battery module M may further include a positive output tab 2. The positive output electrode connecting piece 2 is configured to: the battery module positive output electrode 101 is electrically connected to the cell assembly body positive output electrode 801 via the positive output electrode connection sheet 2. Preferably, the battery module positive output 101 must be electrically connected to the cell assembly body positive output 801 via positive output tab 2. In this way, easier assembly can be achieved.
The positive output pole connection piece 2 has an outer side and an inner side opposite the outer end. The outer side of the positive output tab 2 has a shape and/or size suitable to fit the positive output 101 of the battery module. The inside of the positive output terminal connection piece 2 has a shape and/or size suitable for mating with the positive output terminal 801 of the cell assembly body.
Preferably, the material constituting the positive output electrode connecting piece 2 may include: conductive material and electrically isolating material. The conductive material is, for example, a metal material. For example, the positive output pole connection piece 2 may include: a conductive portion formed of a conductive material and an electrically isolated portion formed of an electrically isolated material partially covered by the conductive material. In the positive output terminal connection pad 2, a conductive material is used to electrically connect to the positive output terminal 801 of the cell assembly body, and an electrically isolating material is used to electrically isolate the portion composed of the conductive material from surrounding components.
Preferably, the conductive portion of the positive output electrode tab 2 is connected to the positive output electrode 801 of the cell assembly body via laser welding. Alternatively or additionally, the electrically isolating portion and the electrically conductive portion form a unitary structure by injection molding.
The battery module M may further include a negative output terminal connecting piece 3. The negative output electrode connecting piece 3 is configured to: the battery module negative output electrode 102 is electrically connected to the cell assembly body negative output electrode 802 via the negative output electrode connection sheet 3. Preferably, the battery module negative output electrode 102 must be electrically connected to the cell assembly body negative output electrode 802 via the negative output electrode connection tab 3. In this way, easier assembly can be achieved.
The negative output terminal connecting piece 3 has an outer side and an inner side opposite to the outer end. The outer side of the negative output pole connecting piece 3 has a shape and/or size adapted to fit the negative output pole 102 of the battery module. The inner side of the negative output pole connecting piece 3 has a shape and/or size suitable for matching the shape and/or size of the negative output pole 802 of the cell assembly body.
Preferably, the material constituting the negative output electrode connecting piece 3 may include: conductive material and electrically isolating material. The conductive material is, for example, a metal material. For example, the negative output pole connection piece 3 may comprise a conductive portion composed of a conductive material and an electrically isolated portion of an electrically isolated material partially covered by the conductive material. In the negative output terminal connection pad 3, a conductive material is used to electrically connect to the cell assembly body negative output terminal 802, and an electrically isolating material is used to electrically isolate the portion composed of the conductive material from surrounding components.
Preferably, the conductive portion of the negative output electrode tab 3 is connected to the cell assembly body negative output electrode 802 via laser welding. Alternatively or additionally, the electrically isolating portion and the electrically conductive portion form a unitary structure by injection molding.
The battery module M may further include a voltage sampling sheet 4. The voltage sampling sheet 4 is configured to: via the voltage sampling pad 4, the front side voltage signal sampling pole 103 is able to acquire and/or monitor the voltage values of the cell components and/or one or more cells in the battery module M.
Preferably, the material constituting the sampling sheet 4 may include: a conductive material. The conductive material is, for example, a metal material, preferably a metal material having a high thermal conductivity. In this way, the heat generated in the cells 8 can be dissipated outwards, for example to a top cover.
Preferably, the constituent voltage sampling pieces 4 are connected to the front side voltage signal sampling electrode 103 via laser welding.
As shown in fig. 4b, which illustrates the rear side cover 9 of the battery module according to an embodiment of the present application, wherein the left side portion of fig. 4b illustrates the rear side cover 9 as seen from the outside to the inside, and the right side portion of fig. 4b illustrates the rear side cover 9 as seen from the inside to the outside.
The rear cover 1 may include a rear cover body 904. The rear cover body 904 is configured and adapted to be connected to the housing 5. The rear cover body 904 is configured to facilitate heat dissipation. In this way, at least a portion of the heat inside the battery module M may be released to the outside of the battery module M through the rear side cover body 904, thereby advantageously reducing the temperature of the battery module M.
Preferably, the material comprising the rear cover body 904 may comprise a material having a relatively high thermal conductivity. Alternatively, the material comprising the rear cover body 904 may include a metal-containing material. For example, the material comprising the rear cover body 104 may include aluminum alloy, steel, and/or (some specific) plastic, etc. In this way, heat dissipation can be facilitated. It is also preferred that the rear cover body 904 be further configured with an electrically isolating coating (e.g., electrically isolating paint) and/or an electrically isolating film. In this way, adverse effects such as leakage of electricity can be prevented.
The rear cover 9 may also include a rear voltage signal acquisition pole 903. The rear side voltage signal sampling electrode 903 is connected to the rear side cover body 904; for example, the rear side voltage signal sampling electrode 903 is directly fixed to the rear side cover body 904; for another example, the rear side voltage signal sampling electrode 903 is indirectly fixed to the rear side cover body 904.
Alternatively, the rear side cover 9 may not have the battery module positive output pole 101 and/or the battery module negative output pole 102. Alternatively, the back side voltage signal acquisition pole 903 may be an alternative to the front side voltage signal acquisition pole 104. Alternatively, the rear voltage signal acquisition pole 903 may be complementary to the front voltage signal acquisition pole.
The backside voltage signal sampling electrode 903 may have a commensurate configuration, size and/or construction depending on the configuration and construction of the frontside voltage signal sampling electrode 103.
The backside voltage signal acquisition electrode 903 may be configured to be adapted to acquire a voltage signal indicative of a voltage value of the cell 8 and/or the cell assembly body 802. In this manner, via the rear side voltage signal sampling electrode 903, the voltage values of the cell assemblies and/or one or more cells in the battery module M can be obtained and/or monitored, facilitating knowledge of the battery module M by the vehicle and/or the person using the vehicle, thereby facilitating prediction of the situation and/or taking corresponding action.
The back side voltage signal sampling electrode 903 is additionally configured to facilitate heat dissipation. In this way, at least a portion of the heat inside the battery module M may be released to the outside of the battery module M through the rear side voltage signal sampling electrode 903, thereby facilitating the lowering of the temperature of the battery module M.
Preferably, the rear side voltage signal acquisition electrode 903 may have a protrusion protruding toward the inner chamber. Such a projection facilitates the manufacturing process. In addition, the presence of such protrusions may enable the back side voltage signal acquisition electrode 903 to more effectively and/or more conveniently acquire the voltage value of the cell assembly and/or one or more cells in the battery module M.
As shown in fig. 4b, the rear side voltage signal sampling electrode 903 is configured as two voltage signal sampling electrodes. In an embodiment not shown, the rear side voltage signal sampling electrode 903 may be one rear side voltage signal sampling electrode 903 or three or more voltage signal sampling electrodes.
In embodiments where the backside voltage signal sampling electrode 903 is a plurality of voltage signal sampling electrodes, the number of the plurality of voltage signal sampling electrodes may be configured to correlate to the number of cells in the cell assembly body 802. For example, the number of voltage signal sampling poles may be equal to the number of cells. For another example, the number of voltage signal sampling poles may be less than the number of cells. As another example, the number of voltage signal sampling poles may be equal to the number of cells minus 1.
In addition, in embodiments in which both the rear side voltage signal sampling electrode 903 and the front side voltage signal sampling electrode 103 are present in the battery module M, the total number of rear side voltage signal sampling electrodes 903 and front side voltage signal sampling electrodes 103 may be configured to be associated with the number of cells in the cell assembly body 802; or the number of back side voltage signal sampling poles 903 and/or the number of front side voltage signal sampling poles 103, respectively, may be configured to correlate to the number of cells in the cell assembly body 802.
For example, the total number of rear side voltage signal sampling poles 903 and front side voltage signal sampling poles 103 may be equal to the number of cells; or the number of rear side voltage signal sampling poles 903 and/or front side voltage signal sampling poles 103, respectively, may be equal to the number of cells.
For another example, the total number of back side voltage signal sampling poles 903 and front side voltage signal sampling poles 103 may be less than the number of cells; or the number of rear side voltage signal sampling poles 903 and/or front side voltage signal sampling poles 103, respectively, may be less than the number of cells.
For another example, the total number of back side voltage signal sampling poles 903 and front side voltage signal sampling poles 103 may be equal to the number of cells minus 1; or the number of rear side voltage signal sampling poles 903 and/or front side voltage signal sampling poles 103 is equal to the number of cells minus 1, respectively.
In embodiments in which the back side voltage signal sampling electrode 903 is a plurality of back side voltage signal sampling electrodes, the arrangement of the plurality of back side voltage signal sampling electrodes may be configured to correlate to the arrangement of the cells in the cell assembly body 802. For example, adjacent two of the plurality of rear-side voltage signal sampling poles may be arranged equidistantly apart. For another example, the plurality of rear side voltage signal sampling poles may be arranged in parallel. For another example, the plurality of backside voltage signal sampling poles may be staggered. In addition, it is understood that the arrangement of the plurality of rear side voltage signal sampling poles may be any suitable combination of the above.
The rear cover 9 may also include a rear explosion proof valve 905. The rear side explosion proof valve 905 may have a commensurate configuration, size and/or configuration.
A rear explosion proof valve 905 may be configured to be connected to the rear cover body 904. The rear explosion protection valve 905 is configured such that the battery module M can be advantageous in avoiding explosion of the battery module, particularly in avoiding explosion caused by the excessively high temperature of the battery module M.
In an alternative embodiment, the back side explosion proof valve 905 may be disposed remotely from the back side voltage signal sampling electrode 903.
In an alternative embodiment, the rear explosion proof valve 905 may be a plurality of rear explosion proof valves.
In embodiments where the backside explosion protection valve 905 is a plurality of backside explosion protection valves, the plurality of backside explosion protection valves may be configured to be associated with the cell assembly body 802 and/or the cells in the cell assembly body 802. For example, the number of the plurality of backside explosion protection valves may correspond to the number of cells in the cell assembly body 802. For another example, the positioning of the plurality of backside explosion proof valves may correspond to the positioning of the cells in the cell assembly body 802. For another example, the arrangement of the plurality of backside explosion proof valves may correspond to the arrangement of the cells in the cell assembly body 802.
The rear cover 9 may also include an electrical isolation member 906. The electrical isolation member 106 may be disposed between the rear side voltage signal sampling electrode 903 and the rear side cover body 904. The electrical isolation member 106 may also be arranged to electrically isolate the rear side cover body 904 relative to the rear side voltage signal sampling electrode 903. In this way, it is possible to prevent current transmitted through the rear side voltage signal sampling electrode 903 for providing a voltage signal from leaking to the rear side cover body 904, thereby improving the safety of the battery module M.
In one embodiment, it is appreciated that electrical isolation member 906 is necessary when the material comprising rear cover body 904 is an electrically conductive material (e.g., metal, among others). In another embodiment, it is understood that where the material comprising the rear cover body 904 is a non-conductive material (e.g., plastic, among others), the electrical isolation member 906 is not required, and preferably the electrical isolation member 906 may be omitted.
In an alternative embodiment, the voltage sampling pad 4 may additionally be configured to: via the voltage sampling tab 4, the rear side voltage signal sampling electrode 903 is capable of acquiring and/or monitoring the voltage value of the cell assembly and/or one or more cells in the battery module M.
Preferably, the constituent voltage sampling pieces 4 are connected to the front side voltage signal sampling electrode 103 via laser welding.
In one embodiment, it is understood that the rear side cover 9 of the battery module may have the same or similar configuration as the front side cover 1 of the battery module, partially or entirely. And will not be described in detail herein.
Fig. 5 and 6 show cross-sectional views of a cell assembly 800 of a battery module according to an embodiment of the present application in two directions perpendicular to each other, wherein fig. 5 shows a longitudinal section of the cell assembly 800 and fig. 6 shows a cross section of the cell assembly 800.
The cell assembly 800 may include at least one cell 8. The at least one cell 8 may include a positive electrode coating, a positive electrode current collector, a separator, a negative electrode coating, and a negative electrode current collector.
The at least one battery cell can be further provided with a battery cell packaging structure. Such a cell package structure serves to seal and electrically isolate the cell 8 from the outside. Alternatively, the material constituting the cell package structure may include polypropylene (PP), polyethylene (PE). Optionally, an aluminum plastic film can be adopted to construct the cell packaging structure.
As shown in fig. 5, the front side voltage signal acquisition pole 103 acquires the voltage value of the at least one cell 8 via the voltage sampling piece 4. The at least one cell 8 may be a plurality of cells 8. For example, as shown in fig. 6, 4 cells 8 are shown (of course, it is understood that the number of cells may be any suitable number as desired). Alternatively, the plurality of battery cells 8 may be connected in series with each other. Alternatively, the plurality of battery cells 8 may be connected in parallel with each other. Preferably, the plurality of cells 8 may be connected in a combination of series and parallel. Preferably, the plurality of cells 8 are connected to each other without a bus bar.
The cell assembly 800 may also include a thermally conductive filler medium 6. The thermally conductive filler medium 6 is configured to facilitate heat dissipation from the battery cells 8 in a direction toward the housing 5. The thermally conductive filler medium 6 is configured to contact the battery cell 8 and the housing 5. For example, a first face portion of the thermally conductive filler medium 6 contacts the battery cell 8 and a second face portion of the thermally conductive filler medium contacts the housing 5, wherein the first face portion is different from the second face portion. Optionally, the first face portion is opposite the second face portion. Alternatively, the first face portion may comprise a plurality of first face portions. Alternatively, the second face portion may comprise a plurality of second face portions. Preferably, the size and/or shape of the first face portion is configured to correspond to the size and/or shape of the second face portion. Optionally, the size and/or shape of the first face portion is configured to be substantially equal to the size and/or shape of the second face portion.
In an alternative embodiment, the thermally conductive filler medium 6 may be arranged at the top surface of the electrical cell 8. In a further alternative embodiment, the thermally conductive filler medium 6 may be arranged (individually) at the bottom side of the battery cell 8. In a further alternative embodiment, the thermally conductive filler medium 6 may be arranged in the internal cavity of the battery module M, except for the space occupied by the cells 8. For example, the thermally conductive filler medium 6 substantially completely fills (e.g., by potting) the internal cavity of the battery module M, except for the space occupied by the cells 8.
In an alternative embodiment, the thermally conductive filler medium 6 may be fixed to the cell 8. For example, the thermally conductive filler medium 6 may be fixed to the battery cell 8 by means of bonding.
Preferably, the material constituting the heat conductive filling medium may include a heat conductive paste, such as Polyurethane (PU), epoxy material, or the like.
Returning to fig. 2, the battery module M may further include an elastic member 7. The number of elastic elements 7 may be one or more. The elastic element 7 has a property of expanding and contracting spatially when subjected to an external force. The elastic member 7 may be configured to facilitate the assembly of the battery cell assembly 800 into the internal cavity of the battery module M. Alternatively or additionally, the elastic element 7 may be configured to be able to absorb and/or resist expansion of the cell 8 during use (e.g. due to excessive temperatures).
The elastic element 7 may be arranged between the cell assembly 800 and the inner wall of the housing 5. Alternatively, the elastic member 7 may be arranged to be located between the left side of the cell assembly 800 and the inner wall of the left side of the housing 5 and/or between the right side of the cell assembly 800 and the inner wall of the right side of the housing 5. Alternatively, the elastic element 7 may be arranged between one cell and another cell, wherein the other cell is adjacent to the one cell.
Preferably, the material constituting the elastic element 7 may comprise Polyurethane (PU), foam, or the like.
As shown in fig. 7, which illustrates a configuration of a plurality of battery modules according to one embodiment of the present application. Fig. 7 shows 9 battery modules therein. Of course, it is understood that the number of battery modules may be any suitable number as desired. A plurality of battery modules are arranged together in any suitable manner. For example, as shown in fig. 7, a plurality of battery modules are horizontally arranged in a direction perpendicular to the front-rear direction. In addition, heat dissipation harmonica pipes A1 and A2 are arranged facing the front side and the rear side, respectively. Facing the top surface and the ground, water cooling plates A3 and A4 are arranged. In this way, heat dissipation of the battery module M can be further facilitated.
The application also discloses a manufacturing method of the battery module. The battery module is any one of the battery modules described above.
The plurality of cells and the elastic element 7 are stacked together.
The plurality of cells 8 are electrically connected via series and/or parallel connections. Wherein adjacent cells 8 are connected via their matched output poles to form a conductive loop.
The output electrode connected as described above is further connected to the voltage sample plate 4 by means of soldering.
Connecting the cell assembly body positive output electrode 801 (e.g., via positive output electrode connection piece 2) to the battery module positive output electrode 101 of the front side cover 1; connecting the cell assembly body 802 (e.g., via the negative output tab 3) to the battery module negative output 102 of the front side cover 1; and connecting the voltage sampling pad 4 to the front side voltage signal acquisition pole 103. Thereby forming a whole.
The whole is inserted into the housing 5.
The case 5 is welded to the front side cover 1.
Welding the voltage sampling plate 4 and the voltage sampling electrode 903 of the rear side cover 9 to each other; for example: the voltage sampling tab 4 is welded to the voltage sampling electrode 903 of the rear side cover 9.
The housing 5 is welded to the rear side cover 9.
In the above manner, the battery module M can be obtained.
The present application also discloses a vehicle that may include a battery module according to the present application. The vehicle may further include a vehicle body configured to be suitable for the battery module M to be mounted thereon.
Preferably, the vehicle may be a new energy vehicle. For example, the vehicle may be a pure electric vehicle or a hybrid vehicle. The electric-only vehicle is powered entirely by electrical energy to drive the vehicle. Hybrid vehicles may employ both conventional energy sources (e.g., gasoline or natural gas or ethanol, etc.) and electrical energy to provide motive power to drive the vehicle.
The vehicle may be of any suitable vehicle type. Preferably, the vehicle is a passenger car or sedan.
The battery module and/or the cell material of the battery module of the present application may be a lead-acid battery, a nickel-cadmium battery, a nickel-hydrogen battery or a lithium ion battery.
According to the battery module, the charging time can be shortened, and the rapid charging with higher multiplying power compared with the scheme in the prior art can be supported.
In the battery module according to the present application, the battery module has 6 effective heat dissipation surfaces because it has an innovative front side cover design. In this way, the heat dissipation rate of the battery module according to the present application is improved, thereby effectively and efficiently dissipating heat during the rapid charging process and improving the user-friendliness. In addition, the voltage sampling sheet of the battery module is configured to be capable of effectively transferring heat of the battery cells to the side cover area of the module so as to be taken away by a cold source, and therefore local highest temperature points are reduced. Therefore, in the battery module, the heat transfer efficiency from the cell output electrode area to the cold source is higher, and the local temperature is more favorably reduced. In addition, the battery module of the application is only connected with the voltage signal acquisition electrode in an electric communication way through the voltage sampling sheet (without any wire harness and/or buffer piece), and the battery cell assembly is directly in heat transfer with the voltage signal acquisition electrode, so that the battery module is compact in structure and high in heat transfer efficiency. In addition, since in the battery module according to the present application, a plurality of battery cells are connected to each other in series and/or in parallel. Compared with the prior art that extra bus bars are needed when the battery cells of the battery module are externally connected, the system reduces the number of parts of the system of the battery module. Therefore, the integration efficiency of the battery module according to the present application increases and the cost (e.g., material cost, manufacturing cost, etc.) decreases. This not only prolongs the cycle life of the battery cells, but also increases the energy density of the battery module.
In this application, it is to be understood that the terms "front", "rear", "left" and "right" refer to the locations illustrated in the drawings, and that such terms are intended to be illustrative and not limiting.
In the present application, it is understood that the terms "inner" and "inner" correspond to directions directed from the external environment toward the internal cavity of the battery module, and correspondingly, the terms "outer" and "outer" correspond to directions directed from the internal cavity of the battery module toward the external environment.
As used herein, the term "comprising" is open ended and includes one or more stated features, elements, components, or functions, but does not preclude the presence or addition of one or more other features, elements, components, functions, or groups thereof.
Within the scope of the present application it is expressly intended that the various aspects, embodiments, examples and alternatives listed in the preceding paragraphs, claims and/or in the following description and drawings, and in particular the individual features thereof, may be carried out independently or in any combination. That is, features of all embodiments and/or any embodiments may be combined in any manner and/or combination unless such features are incompatible. Applicant reserves the right to correspondingly change any originally presented claim or submit any new claim, including modifying any originally presented claim to depend on and/or incorporate any feature of any other claim, although not originally claimed in this manner.
Although the present application is described herein with reference to specific embodiments, the scope of the application is not intended to be limited to the details shown. Various modifications may be made to these details without departing from the underlying principles of the present application.
Reference marks：
1-front side cover;
2-positive output electrode connecting pieces;
3-a negative output electrode connecting sheet;
4-voltage sampling sheet;
5-a housing;
6-a thermally conductive filler medium;
7-an elastic element;
8-an electric core;
9-rear side covers;
101-a positive output electrode of the battery module;
102-a battery module negative output electrode;
103-a front side voltage signal acquisition pole;
104-a front side cover body;
105-front side explosion valve;
106-an insulating part;
801-positive output electrode of the battery cell assembly body;
802-a cell assembly body;
803-negative output electrode of the battery cell assembly body;
903—voltage sampling pole;
904-rear side cover body;
905-rear explosion valve;
906-insulating parts;
a1, a front side radiating harmonica tube;
a2-a rear side heat dissipation harmonica tube;
b1-top side water cooling plate;
b2-bottom side water cooling plate.

Claims (10)

1. A battery module for a vehicle, comprising:
a packaging assembly (X) having an internal cavity; and
a battery cell assembly (800), the battery cell assembly (800) being configured to be adapted to be disposed in an interior cavity of a packaging assembly and configured to be capable of storing electrical energy for use as a power source for providing power for driving a vehicle;
Wherein the package assembly (X) comprises:
a housing (5), the housing (5) forming a top surface, a bottom surface, a left side surface and a right side surface of the package assembly (X);
a front side cover (1), the front side cover (1) forming a front side of the package assembly (X); and
a rear side cover (9), the rear side cover (9) forming a rear side of the package assembly (X);
wherein the housing (5), the front side cover (1) and the rear side cover (9) are configured to together define and enclose an interior cavity of the packaging assembly (X);
and wherein the front side cover (1) comprises:
a front side cover body (104), the front side cover body (104) being configured to be adapted to be connected to a housing (5) and having thermal conductivity to facilitate heat transfer of the battery module; and
a front side voltage signal acquisition pole (103), the front side voltage signal acquisition pole (103) being connected to a front side cover body (104); wherein, through voltage sampling piece (4) and need not pencil and/or bolster, electric core subassembly (800) and voltage signal acquisition pole (103) electric intercommunication and directly carry out the heat transfer with voltage signal acquisition pole (103), from this make the whole surface of encapsulation subassembly (X) constitute six heat transfer surfaces, make whole surface homoenergetic be as effective heat transfer surface, thereby in battery module charging process, can effectively, high-efficient, safely outwards dispel the heat that produces in the battery module, and can be convenient for battery module when meeting low temperature to battery module heating in order to rise its temperature, wherein, whole surface includes: top, bottom, left, right, front and back sides;
The battery module (M) further includes: -a resilient element (7), the resilient element (7) being arranged between the cell assembly (800) and an inner wall of the housing (5) and between two adjacent cells, the resilient element (7) being configured to facilitate fitting of the cell assembly (800) into an internal cavity of the battery module (M) and being configured to be able to absorb and/or resist expansion of the cells (8) due to excessive temperatures during use.
2. The battery module for a vehicle according to claim 1, wherein the battery module (M) further comprises: a thermally conductive filler medium (6), the thermally conductive filler medium (6) being positioned between the cells (8) and the housing (5) of the cell assembly (800) and facilitating heat transfer between the cells (8) and the housing (5).
3. Battery module for a vehicle according to any of claims 1-2, wherein a plurality of cells (8) of the cell assembly (800) are connected to each other in series and/or parallel without a bus bar.
4. A battery module for a vehicle according to any one of claims 1-3, wherein the rear side cover (9) is provided with a rear side voltage signal acquisition pole (903), the rear side voltage signal acquisition pole (903) being configured to be adapted to acquire a voltage signal indicative of the voltage value of the electrical cell (8).
5. Battery module for a vehicle according to any of the claims 1-4, wherein the rear side cover (9) is provided with a rear side explosion protection valve (905), the rear side explosion protection valve (905) being configured to facilitate avoiding an explosion of the battery module (M).
6. The battery module for a vehicle according to any one of claims 1 to 5, wherein the front side cover (1) further includes a battery module positive output pole (101) and a battery module negative output pole (102); and wherein the battery module positive output pole (101) is configured to be adapted to be in electrical communication with a battery cell assembly body positive output pole (801) of the battery cell assembly (800), and the battery module negative output pole (102) is configured to be adapted to be in electrical communication with a battery cell assembly body negative output pole (802) of the battery cell assembly (800).
7. The battery module for a vehicle according to claim 6, wherein the front side cover (1) further comprises an electrical isolation member (106), and wherein the electrical isolation member (106) is arranged between the battery module positive output pole (101) and the front side cover body (104) and is configured to electrically isolate the front side cover body (104) with respect to the battery module positive output pole (101).
8. The battery module for a vehicle according to any one of claims 1-7, wherein the front side cover (1) further comprises an electrical isolation member (106), and wherein the electrical isolation member (106) is arranged between the front side voltage signal acquisition pole (103) and the front side cover body (104) and is configured to electrically isolate the front side cover body (104) with respect to the front side voltage signal acquisition pole (103).
9. A vehicle, comprising: at least one battery module (M) for a vehicle according to any one of claims 1 to 8; and a vehicle body configured to be suitable for mounting the battery module (M) thereon.
10. A method of manufacturing a battery module, wherein the battery module is a battery module for a vehicle according to any one of claims 1 to 8.
CN202211198275.1A 2022-09-29 2022-09-29 Battery module for a vehicle, vehicle and method for producing a battery module Active CN115395170B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102356504A (en) * 2009-04-01 2012-02-15 株式会社Lg化学 Battery module having improved safety
CN106803608A (en) * 2016-09-29 2017-06-06 蔚来汽车有限公司 Battery modules and new-energy automobile
US10164304B1 (en) * 2014-10-31 2018-12-25 The United States Of America, As Represented By The Secretary Of The Navy Thermally dissipative electrochemical cell
CN209447871U (en) * 2017-12-26 2019-09-27 Sk新技术株式会社 Battery module
CN209860115U (en) * 2017-06-27 2019-12-27 株式会社Lg化学 Battery module
CN111129413A (en) * 2020-04-01 2020-05-08 惠州亿纬锂能股份有限公司 Battery module heating and collecting device, battery module and vehicle
CN111341954A (en) * 2020-03-13 2020-06-26 苏州清陶新能源科技有限公司 Soft package battery module and assembly method thereof
CN111587496A (en) * 2018-07-03 2020-08-25 株式会社Lg化学 Battery module including heat shrinkable tube

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101219253B1 (en) * 2011-03-31 2013-01-09 삼성에스디아이 주식회사 Battery pack

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102356504A (en) * 2009-04-01 2012-02-15 株式会社Lg化学 Battery module having improved safety
US10164304B1 (en) * 2014-10-31 2018-12-25 The United States Of America, As Represented By The Secretary Of The Navy Thermally dissipative electrochemical cell
CN106803608A (en) * 2016-09-29 2017-06-06 蔚来汽车有限公司 Battery modules and new-energy automobile
CN209860115U (en) * 2017-06-27 2019-12-27 株式会社Lg化学 Battery module
CN209447871U (en) * 2017-12-26 2019-09-27 Sk新技术株式会社 Battery module
CN111587496A (en) * 2018-07-03 2020-08-25 株式会社Lg化学 Battery module including heat shrinkable tube
CN111341954A (en) * 2020-03-13 2020-06-26 苏州清陶新能源科技有限公司 Soft package battery module and assembly method thereof
CN111129413A (en) * 2020-04-01 2020-05-08 惠州亿纬锂能股份有限公司 Battery module heating and collecting device, battery module and vehicle

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