CN112864508B - Battery energy storage module and battery energy storage device - Google Patents

Battery energy storage module and battery energy storage device Download PDF

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Publication number
CN112864508B
CN112864508B CN201911100205.6A CN201911100205A CN112864508B CN 112864508 B CN112864508 B CN 112864508B CN 201911100205 A CN201911100205 A CN 201911100205A CN 112864508 B CN112864508 B CN 112864508B
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China
Prior art keywords
energy storage
battery energy
storage module
cavity
battery
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CN201911100205.6A
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CN112864508A (en
Inventor
朱军
陆珂伟
周定贤
陈海平
刘书源
李钊
陈娅琪
曹训文
陈丰怿
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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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
    • H01M10/60—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
    • H01M10/62—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
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • 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
    • H01M10/659—Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
    • 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

A battery energy storage module and a battery energy storage device are provided, the battery energy storage module comprises: the structure comprises a structure body (101), a support (102) and an electric core group (103); a cavity for accommodating the electric core group (103) is formed inside the structure body (101), and the structure body (101) is provided with an opening; the electric core group (103) is arranged in the cavity of the structure body (101) through the opening of the structure body (101); the support (102) is used for supporting the structure body (101) to protect the electric core group (103) arranged in the cavity of the structure body (101). Because support piece (102) are used for supporting main structure body (101) are arranged in with protecting electric core group (103) in the cavity of main structure body (101), battery energy storage module can have stronger shock resistance, need not to set up can be applied to alone in the whole car environment in the protection tray.

Description

Battery energy storage module and battery energy storage device
Technical Field
The embodiment of the application relates to the technical field of batteries, in particular to a battery energy storage module and a battery energy storage device.
Background
With the increasing demand of various new energy vehicles for carrying electric quantity and the development of the battery energy storage industry, the energy density of various batteries represented by lithium ion batteries is continuously improved, and higher requirements on the aspects of the safety, the cost, the electric quantity integration efficiency and the like of the battery energy storage technology are provided. In the related art, the battery energy storage device has more parts and is complex to assemble.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a battery energy storage module and a battery energy storage device, which overcome all or part of the above-mentioned disadvantages.
In a first aspect, an embodiment of the present application provides a battery energy storage module, including: the structure comprises a structure body, a support piece and an electric core group; a cavity for accommodating the electric core group is formed inside the structure main body, and the structure main body is provided with an opening; the electric core group is arranged in the cavity of the structure body through the opening of the structure body; the supporting piece is used for supporting the structure body to protect the electric core group arranged in the cavity of the structure body.
Optionally, in an embodiment of the present application, the supporting member is a part of the structural body or is disposed on any outer wall of the structural body.
Optionally, in an embodiment of the present application, the structural body and the supporting member are integrally formed or assembled separately.
Optionally, in an embodiment of the present application, the structural body further includes a partition beam, where the partition beam partitions the cavity of the structural body into at least one sub-cavity, and the sub-cavity can accommodate at least one electric core pack.
Optionally, in an embodiment of the present application, the support and/or the partition beam is a cavity structure including at least one sub-chamber.
Optionally, in an embodiment of the present application, a thermal management medium channel is included in the cavity structure, and the thermal management medium channel is used for accommodating a thermal management medium for cooling the electric core pack.
Optionally, in an embodiment of the present application, the cavity of the structural body includes a thermal management medium channel, and the thermal management medium channel is used for accommodating a thermal management medium for cooling the electric core pack.
Optionally, in an embodiment of the present application, the method further includes: the end plate and the structure body seal the electric core group in a cavity of the structure body.
Optionally, in an embodiment of the present application, the end plate is located at an opening of the structural body at both sides.
Optionally, in an embodiment of the present application, at least one external interface is disposed on the end plate or the structural body, and the external interface is used for connecting an external device.
Optionally, in an embodiment of the present application, the battery cell group includes at least one battery cell and a constraining body; the restraining bodies are arranged at two ends of the battery cell group and play a restraining role on the battery cells.
Optionally, in an embodiment of the present application, the battery cell pack further includes a restraining strip, and the restraining strip is fixedly connected to the restraining body and plays a role in restraining and/or guiding the battery cell.
Optionally, in an embodiment of the present application, the battery cell group further includes a signal collecting assembly, and the signal collecting assembly is electrically connected to the battery cell.
Optionally, in an embodiment of the present application, the battery energy storage module further includes a battery cell monitoring unit, where the battery cell monitoring unit is electrically connected to the battery cell pack or is located on a battery cell of the battery cell pack.
Optionally, in an embodiment of the present application, the battery energy storage module further includes an electrical control unit, and the electrical control unit is electrically connected to the electric core pack or is located on the electric cores of the electric core pack.
Optionally, in an embodiment of the present application, a pressure relief valve for exhausting smoke is disposed on a structural body or an end plate of the battery energy storage module.
In a second aspect, an embodiment of the present application further provides a battery energy storage device, where the battery energy storage device includes at least one battery energy storage module, and the battery energy storage module is any one of the above battery energy storage modules.
Optionally, in an embodiment of the present application, the battery energy storage modules are connected in parallel or in series.
The battery energy storage module and the battery energy storage device of this application embodiment utilize the inside cavity of main structure body to hold electric core group, because support piece is used for supporting main structure body arranges in with the protection electric core group in main structure body's the cavity, battery energy storage module can have stronger shock resistance, need not to set up in the protection tray can be applied to alone in the whole car environment.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1a and fig. 1b are schematic structural diagrams of a battery energy storage module according to an embodiment of the present disclosure;
FIG. 2 a-FIG. 2g are schematic longitudinal sectional views of a structural body according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a structural body according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of the chamber structure of the present application;
FIG. 5 is a schematic view of a chamber structure of the present application for submerged cooling;
FIG. 6 is a schematic structural diagram of an end plate according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a battery energy storage module according to an embodiment of the present disclosure;
fig. 8 is a perspective view of a battery energy storage module according to an embodiment of the present disclosure;
fig. 9 is a schematic diagram illustrating an assembly manner of a battery energy storage module according to an embodiment of the present disclosure;
fig. 10 is a schematic connection diagram of a battery energy storage module according to an embodiment of the present disclosure.
Reference numerals:
a battery energy storage module 10;
a structural body 101;
a support 102;
the electric core group 103;
a partition beam 1011;
a battery cell 1031;
a restraint end plate 1032;
an elastic member 1033;
a slider bar 1034;
a signal acquisition component 1035;
an end plate 104;
an external connection interface 1041;
a cell monitoring unit 105;
an electrical control unit 106.
Detailed Description
It is not necessary for any particular embodiment of the invention to achieve all of the above advantages at the same time.
In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.
In one implementation, the battery energy storage device is integrated based on three levels of the battery core, the module and the battery pack, and relatively independent functions are realized through relatively independent parts. For example, relatively separate structural components are utilized to provide the function carried by the entire battery energy storage device; integrating a certain number of battery cores by using relatively independent battery module parts; cold plates are utilized to provide cooling functions, etc. The battery energy storage device has the advantages of multiple levels, multiple parts, multiple process types, complex structure, low integration efficiency, high cost and potential safety hazard.
In another implementation, the battery module level is weakened or cancelled, and the battery pack is directly integrated by using the battery core. For example, the cell is directly fixed to a cold plate or other structural parts by an adhesive. The battery energy storage device also realizes relatively independent functions through relatively independent parts, for example, relatively independent parts such as a tray, a cold plate and an upper cover still exist in the battery energy storage device, the integration efficiency is improved limitedly, the process is relatively complex, the number of parts is large, moreover, more battery cores in a battery pack are placed together, if one battery core is out of control due to heat, other battery cores can be spread, and the battery energy storage device has relatively large potential safety hazards.
And above two kinds of implementation methods, battery energy memory's electric quantity is comparatively fixed, and the difficult space and the later stage extension of realizing of product design. When the demands of the use scene on the physical boundary, the electric quantity and the like of the battery energy storage device are changed, flexible matching is difficult to realize, and the battery energy storage device generally needs to be developed again. The development cycle is long and the cost is high.
The following further describes specific implementations of embodiments of the present application with reference to the drawings of the embodiments of the present application.
Fig. 1a and fig. 1b are schematic structural diagrams of a battery energy storage module according to an embodiment of the present disclosure; as shown in fig. 1 and 1b, the battery energy storage module 10 includes: the structure body 101, the support member 102 and the electric core group 103;
a cavity for accommodating the electric core group 103 is formed inside the structure body 101, and the structure body 101 is provided with an opening;
the electric core group 103 is arranged in the cavity of the structure body 101 through the opening of the structure body 101;
the support 102 is used to support the structural body 101 to protect the electric core pack 103 placed in the cavity of the structural body 101.
The battery energy storage module and the battery energy storage device of this application embodiment utilize the inside cavity of main structure body to hold electric core group, because support piece is used for supporting main structure body arranges in with the protection electric core group in main structure body's the cavity, battery energy storage module can have stronger shock resistance, need not to set up in the protection tray can be applied to alone in the whole car environment.
Optionally, referring to fig. 2 a-2 g, the supporting member 102 is a part of the structural body 101 or is disposed on any outer wall of the structural body 101.
The supporting member 102 is a part of the structural body 101, and the supporting member 102 and other parts of the structural body 101 together form the cavity for accommodating the cell assembly 103, so that the impact resistance of the cavity is increased by the supporting member 102.
The combination of the support 102 and the structural body 101 is illustrated by way of example by means of fig. 2 a-2 g.
Fig. 2a shows that the structural body 101 and the supporting member 102 together form the cavity, the two are assembled, other side walls of the structural body 101 are of an integral structure, and the bottom of the structural body is opened to the supporting member 102 for assembly.
Fig. 2b shows that the structural body 101 and the supporting member 102 jointly form the cavity, and the structural body 101 and the supporting member 102 are assembled together, the structural body 101 is a T-shaped integral structure, the two ends of the structural body are detachable open end plates, and the bottom opening of the structural body is assembled with the supporting member 102.
Fig. 2c shows that the structural body 101 and the supporting member 102 together form the cavity, the structural body 101 and the supporting member 102 are of an integral structure, and the upper portion of the structural body 101 is a detachable open end plate.
Fig. 2d shows that the structure body 101 and the supporting member 102 are separate structures, the structure body 101 and the supporting member 102 are respectively an integral structure, and the supporting member 102 is located at the bottom of the structure body 101.
Fig. 2e shows that the structural body 101 and the supporting member 102 together form the cavity, and the structural body 101 is only an outer wall, a bottom opening, and a middle partition wall, and is assembled with the supporting member 102.
Fig. 2f shows the structure body 101 forming the cavity, and the supporting member 102 is disposed at the bottom of the structure body 101.
Fig. 2g shows that the structure body 101 and the supporting member 102 together form the cavity, the structure body 101 and the supporting member 102 are of an integral structure, and the supporting member 102 is a supporting entity with a groove at the bottom.
The supporting member 102 is disposed on any outer wall of the structural body 101, so that the impact resistance of the cavity can be increased by the supporting member 102 and the structural body 101.
Specifically, the structural body 101 and the supporting member 102 are integrally formed or assembled separately.
The structure body 101 and the supporting piece 102 are integrally formed, so that the complexity of the manufacturing process is reduced, the number of parts is reduced, and the stability of the structure is improved. For example, a typical implementation is to integrally form the metal plate by a metal extrusion process, which has a small number of parts, a strong overall structure and a low cost.
The structure body 101 and the supporting member 102 are assembled, so that the structure body 101 and the supporting member 102 can be manufactured separately, and flexibility of a production process is provided. For example, the components are combined into a whole by welding, bolting, etc., which is not limited in this application.
Fig. 3 is a schematic structural diagram of a structural main body provided in an embodiment of the present application, as shown in fig. 3, optionally, in an embodiment of the present application, the structural main body 101 further includes a partition beam 1011, where the partition beam 1011 partitions the cavity of the structural main body 101 into at least one sub-cavity, and each sub-cavity can accommodate at least one electric core pack 103.
Optionally, in the embodiment of the present application, the support 102 and/or the partition beam 1011 are a cavity structure including at least one sub-chamber.
The cavity structure plays a role in protection and buffering, the strength of the structure body 101 for resisting external collision is increased, and a buffering area is increased, so that the protection of the electric core assembly 103 in the cavity inside the structure body 101 is facilitated. As shown in fig. 4, the cavity structure of the support 102 is shown. In fig. 4, it is also observed that there may be at least one cavity inside the structural body 101, for example, the cavity inside the structural body 101 may be one cavity; or two cavities side by side; or three cavities side by side; or four cavities, two rows up and down, two cavities in each row; of course, this is merely an example and does not represent a limitation of the present application.
The cavity of the structural body 101 may be cylindrical, and the cross-section of the cavity (i.e., the longitudinal section of the inner wall of the structural body 101) may be circular, rectangular, body-shaped, etc., which is not limited in this application, and the longitudinal section of the outer wall of the structural body 101 may be the same as or different from the longitudinal section of the inner wall.
Optionally, in an embodiment of the present application, a thermal management medium channel is included in the cavity structure, the thermal management medium channel is used for accommodating a thermal management medium for cooling the electric core assembly 103, and the thermal management medium channel may be sealed, and may also communicate with an external thermal management component through a thermal management interface on the structure body 101.
The cavity structure not only can protect the electric core group 103, increase the buffer area, can also hold thermal management medium, lower the temperature to the electric core group 103, all utilize integrated cavity structure inside the main structure body 101 to realize safeguard function and cooling function, need not increase solitary protection component and thermal management component, further reduced the quantity of spare part, it is more convenient to make, and structural stability is better.
Optionally, in another embodiment of the present application, the cavity of the structural body 101 includes a thermal management medium channel for receiving a thermal management medium for cooling the electric core pack.
The cavity of the structural body 101 is a sealed cavity, and optionally, referring to fig. 5, the cavity is used as a thermal management medium channel, and a thermal management medium for cooling the electric core assembly is injected to form immersion cooling. The heat management medium is cooling liquid or phase-change material, the cavity volume of the structure body 101 can meet the requirement of immersion cooling, and the structure body is low in cost and high in reliability.
Optionally, in an embodiment of the present application, the present application further includes: the end plate 104 and the structural body 101 seal the electric core group 103 in a cavity of the structural body 101.
Specifically, for example, the structural body 101 is long, the openings of the structural body 101 are disposed at two ends of the structural body 101, and the structural body 101 may have two openings or may have one opening.
The opening of main structure body 101 sets up in the both ends of main structure body 101, and end plate 102 is connected in the opening part of main structure body 101, and consequently, the position size that needs to seal between end plate 102 and the main structure body 101 is very little, easily seals, and sealed effect is better, and battery energy storage module 10 only holds electric core group 103 moreover, and the size is less than ordinary battery energy memory far away, consequently, the leakproofness is compared in ordinary battery energy memory and can be further improved.
Fig. 6 is a schematic structural diagram of an end plate according to an embodiment of the present disclosure, as shown in fig. 6, optionally, in an embodiment of the present disclosure, at least one external interface 1041 is disposed on the end plate 104, and the external interface 1041 is used for connecting an external device.
The external interface 1041 may include an electrical external interface, a thermal management interface, a mechanical external interface, and the like, and the end plate 104 may further be provided with a maintenance window for maintenance. The electrical external interface can be connected with the electrical component, the thermal management external interface can be connected with the thermal management component, and the mechanical external interface can be connected with the mechanical component.
The end plate 104 may provide a restraining force on the electric core pack 103, restraining the position of the electric core pack 103 within the cavity of the structural body 101.
Referring to fig. 1b, optionally, in any embodiment of the present application, the battery pack 103 includes at least one battery cell 1031 and a restraining body 1032.
The battery cell refers to a single electrochemical unit containing a positive electrode and a negative electrode, and the battery cell can be divided into an aluminum shell battery cell, a soft package battery cell (also called a polymer battery cell), a cylindrical battery cell and the like.
Restraint bodies 1032 are arranged at two ends of the battery core group 103 to restrain the battery cells 1031.
Optionally, an elastic component 1033 is disposed between the battery cells, and the elastic component 1033 may reduce friction between the battery cells 1031, so as to protect the battery cells 1031.
Optionally, in any embodiment of the present application, as shown in fig. 1b, the battery cell group 103 further includes a restraining strip 1034, and the restraining strip 1034 is fixedly connected to the restraining body 1032 and is used for restraining the battery cell 1031. The constraint strip 1034 may be provided with protrusions to reduce the friction force when the electric core assembly 103 is pushed into the cavity of the structural body 101, or the surface of the constraint strip 1034 may be coated to reduce the friction coefficient. The constraint strip 1034 may be formed with a special shape to accommodate other high polymer materials as a contact surface when the electric core assembly 103 is pushed in, and there are many methods for reducing the friction between the constraint strip 1034 and the inner wall of the structural body 101. The way of assembling the electric core assembly 103 with the structure body 101 depends on the structure of the structure body 101, and the structure body 101 is integrally formed, so that the electric core assembly 103 can be pushed in from the opening of the structure body 101.
Optionally, in any embodiment of the present application, as shown in fig. 1b, the battery pack 103 further includes a signal collecting assembly 1035, and the signal collecting assembly 1035 is electrically connected to the battery cells 1031. The signal acquisition component 1035 may monitor the battery cell 1031, and issue a signal alarm in the event of an abnormal condition such as thermal runaway of the battery cell 1031.
Optionally, in any embodiment of the present application, as shown in fig. 1, the battery energy storage module 10 further includes a cell monitoring unit 105, where the cell monitoring unit 105 is electrically connected to the cell pack or located on a cell of the cell pack. The cell monitoring Unit 105 may be a Microcontroller Unit (MCU).
Optionally, in any embodiment of the present application, as shown in fig. 7, the battery energy storage module 10 further includes an electrical control unit 106, where the electrical control unit 106 is electrically connected to the electric core pack or is located on the electric cores of the electric core pack.
It should be noted that other functional modules can also be pushed into the structural body 101 in a manner similar to the electric core assembly 103, so that the battery energy storage module 10 has an expanded function, for example, as shown in fig. 7, the battery control module can be pushed into the cavity of the structural body 101 through the opening of the structural body 101, and the battery control module can be electrically connected with the electric core assembly 103.
The battery energy storage module 10 of the embodiment of the application utilizes the cavity inside the structure main body 101 to accommodate the battery pack, and because the opening is at the two ends of the structure main body 101, the size required to be sealed between the opening end plate 102 and the structure main body 101 is small, the process is easier to realize, and the sealing effect is better.
Example II,
Based on the battery energy storage module described in the first embodiment, the present application provides a battery energy storage device, where the battery energy storage device includes at least two battery energy storage modules 10, and the battery energy storage module 10 is the battery energy storage module 10 described in the first aspect or any one of the embodiments of the first aspect.
Optionally, in any embodiment of the present application, the battery energy storage modules 10 are connected in parallel or in series with each other in the battery energy storage modules 10.
As shown in fig. 8, fig. 8 is a perspective view of a battery energy storage module according to an embodiment of the present disclosure, and the battery energy storage module 10 in the present disclosure may be used alone as a battery energy storage device, or may be used by combining several modules with each other, or by combining with other functional modules as a battery energy storage device. The flexibility of the physical form and function change of the battery energy storage device is greatly improved, and the feasibility of application in different application scenes is easier to realize. Fig. 9 is a schematic view of a combination of a battery energy storage module according to an embodiment of the present disclosure, as shown in fig. 9, of course, fig. 9 is only an exemplary illustration, and does not represent that the present disclosure is limited thereto.
When a plurality of battery energy storage modules 10 are combined into a battery energy storage device, each battery energy storage module 10 can be independently subjected to logistics and installation, and the difficulty and cost of a supply chain and a manufacturing link are reduced. When a certain module is abnormal, the module can be independently repaired or replaced, and the repair time and cost are reduced.
When the battery energy storage modules 10 are connected in parallel to form the battery energy storage device, the number of the battery energy storage modules 10 can be flexibly increased or decreased according to the requirements of specific scenes. Certainly, the battery energy storage modules 10 may also be connected in series or combined in a series-combination-parallel manner, which is not limited in this application, as shown in fig. 10, fig. 10 is a schematic connection relationship diagram of the battery energy storage modules provided in the embodiment of the present application, and a customer may also freely select to increase or decrease the number of the energy storage modules according to the change of the actual electric quantity demand after purchasing a product.
Moreover, when the battery energy storage devices are combined by the plurality of battery energy storage modules 10, the internal electric quantity of each battery energy storage module 10 is reduced, and the structures of the battery energy storage modules 10 are relatively independent, so that the thermal runaway protection safety level can be improved.
Meanwhile, the battery energy storage module 10 in the embodiment of the application can effectively resist the influence of external impact on the electric core assembly 103 through the supporting piece 102.
The battery energy storage device of this application embodiment utilizes the inside cavity of main structure body to hold the group battery, because the opening is at main structure body both ends, consequently the size that need seal between opening part end plate and the main structure body is less, realizes more easily on the technology, and sealed effect is better moreover.
The product can execute the method provided by the embodiment of the application, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the methods provided in the embodiments of the present application.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (14)

1. A battery energy storage module comprising: the structure comprises a structure body, a support piece and an electric core group;
a cavity for accommodating the electric core group is formed inside the structure main body, and the structure main body is provided with an opening;
the electric core group is arranged in the cavity of the structure body through the opening of the structure body;
the supporting piece is a part of the structure body or arranged on any outer wall of the structure body and is used for supporting the structure body to protect the electric core group arranged in the cavity of the structure body, the supporting piece is a cavity structure comprising at least one sub-cavity, the cavity structure protects the electric core group and increases a buffer area, so that the impact resistance of the battery energy storage module is strong enough that the battery energy storage module can be independently applied to the whole vehicle environment without being arranged in a protection tray; the cavity of the structure main body is used as a heat management medium channel, a heat management medium for cooling the electric core group is injected into the heat management medium channel to form immersed cooling, and the heat management medium is cooling liquid or phase-change material; therefore, the cavity structure integrated in the structure body can simultaneously realize the protection function and the cooling function without adding a separate protection component and a separate thermal management component.
2. The battery energy storage module of claim 1,
the structure body and the support piece are integrally formed or respectively assembled.
3. The battery energy storage module of claim 2,
the structure main body further comprises a partition beam, the partition beam partitions the cavity of the structure main body into at least one sub-cavity, and the sub-cavity contains at least one electric core group.
4. The battery energy storage module of claim 1, further comprising: the end plate and the structure body seal the electric core group in a cavity of the structure body.
5. The battery energy storage module of claim 4, wherein the end plates are located at openings of the structural body at both sides.
6. The battery energy storage module of claim 4, wherein the end plate or structural body is provided with at least one external interface for connection to an external device.
7. The battery energy storage module of claim 1, wherein the battery pack comprises at least one battery cell, a restraint body, and a restraint bar;
the restraining bodies are arranged at two ends of the battery cell group and play a restraining role on the battery cells;
the restraint strip is fixedly connected with the restraint body, the battery cell group is pushed into a cavity of the structure main body, the restraint strip plays a role in restraining and guiding the battery cells, and a bulge or a coating for reducing friction force between the restraint strip and the inner wall of the structure main body is arranged on the restraint strip.
8. The battery energy storage module of claim 1, wherein the battery pack further comprises a signal acquisition assembly electrically connected to the cells.
9. The battery energy storage module of any of claims 1-8, further comprising a cell monitoring unit electrically connected to or located on the cells of the pack.
10. The battery energy storage module of any of claims 1-8, further comprising an electrical control unit electrically connected to or located on the cells of the pack.
11. A battery energy storage device, characterized in that the battery energy storage device comprises a battery energy storage module used alone or a plurality of battery energy storage modules used in combination with each other, and the battery energy storage module is the battery energy storage module according to any one of claims 1-10.
12. The battery energy storage device of claim 11, wherein the stand-alone battery energy storage module itself acts as a battery energy storage device.
13. The battery energy storage device of claim 11, wherein a plurality of battery energy storage modules form the battery energy storage device, wherein each battery energy storage module can be independently logistics and installation, and can be independently maintained or replaced with respect to the battery energy storage module.
14. The battery energy storage device of claim 11, wherein each of the battery energy storage modules are connected in parallel or in series with each other.
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