CN114335795A - Integrated battery assembly with double-layer module, electric vehicle and design method - Google Patents
Integrated battery assembly with double-layer module, electric vehicle and design method Download PDFInfo
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- CN114335795A CN114335795A CN202111444106.7A CN202111444106A CN114335795A CN 114335795 A CN114335795 A CN 114335795A CN 202111444106 A CN202111444106 A CN 202111444106A CN 114335795 A CN114335795 A CN 114335795A
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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
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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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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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
- H01M10/65—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/258—Modular batteries; Casings provided with means for assembling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an integrated battery assembly with double layers of modules, an electric vehicle and a design method, belonging to the technical field of automobiles, and comprising a battery box body and a battery pack arranged in the battery box body, wherein the battery pack comprises a plurality of battery modules which are arranged in an upper layer and a lower layer; the battery box body comprises a box body front end plate, a box body rear end plate, a box body side edge beam and a box body bottom plate, and a water cooling plate assembly is arranged between the two layers of battery modules; a water pipe connector is arranged on the front end plate of the box body, and the water pipe connector and a flow passage of the water cooling plate assembly form a cooling liquid loop; according to the invention, by the technical scheme that the modules are arranged in a double-layer manner, the water cooling plate assembly is provided with the porous flow channel, and the porous flow channel and the flow channel structures in the front end plate and the rear end plate of the box body form a closed heat management cooling liquid flow channel loop, the dry-wet separation in the battery pack can be realized, the design of a water pipe is omitted, the assembly performance is improved, and the leakage risk caused by the water pipe adapter is reduced.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to an integrated battery assembly with double layers of modules, an electric vehicle and a design method.
Background
Currently, the development prospect of new energy automobiles is very wide, but with the development of technologies, various new energy automobiles have frequent safety problems. The power battery is used as a key core part of a new energy automobile, and the integration of the power battery is always an industrial problem. At present, the parts of the lithium ion battery are complex and various, and the integrated design can not be realized.
CN209389112U the present invention provides a battery pack comprising more than two battery modules; the battery modules comprise frames and a plurality of battery monomers accommodated in the frames; a sleeve is fixedly arranged between the adjacent frames; the sleeve is provided with a channel for penetrating the fixing piece; the fixing piece is used for fixing the battery pack on the whole vehicle. The application provides a battery package, including more than two battery modules, when realizing that the battery package is lightweight, also improved the joint strength of battery package in whole car. However, the technical scheme adopted by the application has defects in the aspects of sealing and preventing heat diffusion.
Disclosure of Invention
Aiming at the problems that parts of a lithium ion battery are complex and various and the integrated design cannot be realized in the prior art, the invention aims to provide an integrated battery assembly with a double-layer module, an electric vehicle and a design method, wherein the high integration of a liquid cooling plate, a lower box body and a module fixing support is realized through the design of a module double-layer arrangement scheme; and through the technical scheme that the porous flow channel is arranged on the water cooling plate assembly and forms a closed heat management cooling liquid flow channel loop with the flow channel structures in the front end plate and the rear end plate of the box body, the dry-wet separation in the battery pack can be realized, the design of a water pipe is omitted, the assembly performance is improved, and the leakage risk caused by the water pipe adapter is reduced.
The invention is realized by the following technical scheme:
in a first aspect, the invention provides an integrated battery assembly with double layers of modules, which comprises a battery box body and a battery pack arranged in the battery box body, wherein the battery pack comprises a plurality of battery modules 1, and the plurality of battery modules 1 are arranged in an upper layer and a lower layer; the battery box body comprises a box body front end plate 4, a box body rear end plate 6, box body side beams 9 and a box body bottom plate, wherein the box body front end plate 4 is arranged at the front end of the battery pack, the box body rear end plate 6 is arranged at the rear end of the battery pack, and the box body side beams 9 are arranged at the left side and the right side of the battery pack and are arranged along the length direction of the battery pack; the box body bottom plate is arranged at the bottom of the battery pack; a water cooling plate assembly 3 is arranged between the two layers of battery modules 1, and a closed heat management cooling liquid flow channel loop is formed by a flow channel in the water cooling plate assembly 3 and flow channel structures in the box body front end plate 4 and the box body rear end plate 6; and a water pipe connector 7 is arranged on the front end plate 4 of the box body, and the water pipe connector 7 and a flow passage of the water cooling plate assembly 3 form a cooling liquid loop.
Furthermore, a box body cross beam 2 and a box body longitudinal beam 8 are arranged inside the battery box body, the box body cross beam 2 and the box body longitudinal beam 8 form a grid shape, the box body cross beam 2 is arranged along the width direction of the battery pack, and the box body longitudinal beam 8 is arranged along the length direction of the battery pack; the battery module 1 is located in a grid-like structure.
Further, 5 bonds through heat conduction structure glue between battery module 1 and the water- cooling board assembly 3, 5 are used for fixing and heat transfer to heat conduction structure glue, and heat transfer can all be carried out on the two sides of water-cooling board assembly 3, promotes thermal management efficiency.
Further, be provided with horizontal limit structure 801 on the box longeron 8, through horizontal limit structure 801 and battery module 1 joint, guarantee battery module 1's installation, promote battery module 1's installation accuracy, promote structural strength.
Further, the material of the water-cooling plate assembly 3 includes, but is not limited to, high-strength, easily-formed and good-heat-conducting metal materials such as aluminum alloy, iron alloy, titanium alloy and the like.
Furthermore, the number of the water pipe joints 7 is two, one is a water inlet, the other is a water outlet, one end of the water pipe joint 7 is connected with the flow channel of the water cooling plate assembly 3 and the front end plate 4 of the box body, and the other end is connected with the heat management system of the whole vehicle, so that a complete cooling liquid loop is formed.
Furthermore, the water cooling plate assembly 3 is formed by adopting an extrusion process, a porous flow channel is arranged on the water cooling plate assembly 3, and a closed heat management cooling liquid flow channel loop is formed by the porous flow channel and the flow channel structures in the front end plate 4 and the rear end plate 6 of the box body.
In a second aspect, the present invention provides an electric vehicle including an integrated battery assembly of a double-layered module.
In a third aspect, the present invention further provides a design method of an integrated battery assembly with a double-layer module, including the following steps:
a: taking the battery pack placement boundary and performance requirements as design inputs;
b: determining the number of single batteries according to the matching of the arrangement boundary of the battery pack and the performance requirement;
c: the size of the battery module is reasonably arranged according to the number of the battery monomers, and the length of the module can be adjusted according to the number of the battery monomers;
d: the number of the water cooling plate assemblies 3 is determined according to the number of the battery modules 1, wherein one battery module 1 is arranged on the upper surface and the lower surface of one water cooling plate assembly 3;
e: the size of the transverse side structure 801 is designed through the weight of the battery module 1, and the structural strength of the transverse side structure 801 is guaranteed to be within a safety coefficient range;
f: determining the thickness and the flow channel structure of the water cooling plate assembly 3 through CFD thermal management calculation and CAE strength calculation;
g: a flow channel inside the front end plate and the rear end plate is designed through a flow channel of the water cooling plate assembly 3 and is connected with a water pipe joint;
h: the sizes of the battery side edge beam, the front end plate and the rear end plate are designed according to the size height of the double-layer module;
i: and checking the electrical safety and the structural strength of the battery pack.
Furthermore, the sum of the lengths of the single batteries in the step C accounts for more than 95% of the length of the battery module, and if the length of the module needs to be lengthened or shortened, the number of the single batteries can be increased or decreased.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, through the structural design of the double-layer battery module, the high integration of the liquid cooling plate, the lower box body and the module fixing bracket is realized, and the problems that the existing battery parts are complicated and various and the integration cannot be realized are solved;
(2) according to the invention, the porous flow channel is arranged on the water cooling plate assembly, and the porous flow channel and the flow channel structures in the front end plate and the rear end plate of the box body form a closed heat management cooling liquid flow channel loop, so that dry-wet separation in the battery pack can be realized, the design of a water pipe is omitted, the assembly performance is improved, and the leakage risk caused by the water pipe adapter is reduced.
(3) The invention has simple structure and high integration level and can realize modular design.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural diagram of an integrated battery assembly with a double-layer module according to the present invention;
FIG. 2 is a schematic diagram of a battery pack inside a dual-layer module integrated battery assembly according to the present invention;
FIG. 3 is a partial top view of a two-layer module integrated battery assembly of the present invention;
FIG. 4 is a schematic view of a cooling circuit of a dual-layered modular integrated battery assembly according to the present invention;
in the figure:
a battery module 1;
a box body cross beam 2;
a water-cooled plate assembly 3;
a front end plate 4 of the box body;
5, heat-conducting structural adhesive;
a box body rear end plate 6;
a water pipe joint 7;
a box body longitudinal beam 8;
a lateral edge structure 801;
the case side member 9.
Detailed Description
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the invention is as follows by combining the attached drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Example 1
As shown in fig. 1, the embodiment provides an integrated battery assembly with double layers of modules, which includes a battery box and a battery pack disposed inside the battery box, where the battery pack includes a plurality of battery modules 1, and the plurality of battery modules 1 are disposed in an upper layer and a lower layer; the battery box body comprises a box body front end plate 4, a box body rear end plate 6, box body side beams 9 and a box body bottom plate, wherein the box body front end plate 4 is arranged at the front end of the battery pack, the box body rear end plate 6 is arranged at the rear end of the battery pack, and the box body side beams 9 are arranged at the left side and the right side of the battery pack and are arranged along the length direction of the battery pack; the box body bottom plate is arranged at the bottom of the battery pack; a water cooling plate assembly 3 is arranged between the two layers of battery modules 1, and a closed heat management cooling liquid flow channel loop is formed by a flow channel in the water cooling plate assembly 3 and flow channel structures in the box body front end plate 4 and the box body rear end plate 6; and a water pipe connector 7 is arranged on the front end plate 4 of the box body, and the water pipe connector 7 and a flow passage of the water cooling plate assembly 3 form a cooling liquid loop.
The material of the water cooling plate assembly 3 includes but is not limited to high-strength, easily-formed and good-heat-conducting metal materials such as aluminum alloy, iron alloy, titanium alloy and the like.
The water cooling plate assembly 3 is formed by adopting an extrusion process, a porous flow channel is arranged on the water cooling plate assembly 3, and a closed heat management cooling liquid flow channel loop is formed by the porous flow channel and the flow channel structures in the front end plate 4 and the rear end plate 6 of the box body.
As shown in fig. 2, a box beam 2 and a box longitudinal beam 8 are arranged inside the battery box, the box beam 2 and the box longitudinal beam 8 form a grid shape, the box beam 2 is arranged along the width direction of the battery pack, and the box longitudinal beam 8 is arranged along the length direction of the battery pack; the battery module 1 is located in a grid-like structure.
As shown in fig. 2, the battery module 1 and the water-cooling plate assembly 3 are bonded by the heat-conducting structural adhesive 5, the heat-conducting structural adhesive 5 is used for fixing and transferring heat, and both sides of the water-cooling plate assembly 3 can transfer heat, so that the heat management efficiency is improved.
As shown in fig. 3, the box longitudinal beam 8 is provided with a transverse edge structure 801, and the transverse edge structure 801 is connected with the battery module 1 in a clamping manner, so that the installation of the battery module 1 is ensured, the installation accuracy of the battery module 1 is improved, and the structural strength is improved.
As shown in fig. 4, there are two water pipe connectors 7, one is a water inlet, the other is a water outlet, one end of the water pipe connector 7 is connected to the flow channel of the water cooling plate assembly 3 and the front end plate 4 of the box body, and the other end is connected to the entire vehicle thermal management system, so as to form a complete coolant loop.
Example 2
The present embodiment provides an electric vehicle including the integrated battery assembly of the double-layer module of embodiment 1. The electric vehicle adopts the integrated battery assembly of the double-layer module in the embodiment 1, and the high integration of the liquid cooling plate, the lower box body and the module fixing support is realized by adopting the structural design of the double-layer battery module.
Example 3
The embodiment provides a design method of an integrated battery assembly of a double-layer module, which comprises the following steps:
a: taking the battery pack placement boundary and performance requirements as design inputs;
b: determining the number of single batteries according to the matching of the arrangement boundary of the battery pack and the performance requirement;
c: the size of the battery module is reasonably arranged according to the number of the battery monomers, and the length of the module can be adjusted according to the number of the battery monomers;
d: the number of the water cooling plate assemblies 3 is determined according to the number of the battery modules 1, wherein one battery module 1 is arranged on the upper surface and the lower surface of one water cooling plate assembly 3;
e: the size of the transverse side structure 801 is designed through the weight of the battery module 1, and the structural strength of the transverse side structure 801 is guaranteed to be within a safety coefficient range; the size of the transverse edge structure can be calculated through CAE simulation, and the size is increased if the strength is insufficient;
f: determining the thickness and the flow channel structure of the water cooling plate assembly 3 through CFD thermal management calculation and CAE strength calculation; CFD is temperature field simulation, CAE is structural strength simulation, the size of the structure is adjusted through a simulation model, whether the simulation result meets the design requirement is seen, and if the simulation result does not meet the requirement, the size is continuously adjusted in an iterative mode until the design requirement is met;
g: a flow channel inside the front end plate and the rear end plate is designed through a flow channel of the water cooling plate assembly 3 and is connected with a water pipe joint;
h: the sizes of the battery side edge beam, the front end plate and the rear end plate are designed according to the size height of the double-layer module;
i: and checking the electrical safety and the structural strength of the battery pack.
The sum of the lengths of the single batteries in the step C accounts for more than 95% of the length of the battery module, and if the length of the module needs to be lengthened or shortened, the number of the single batteries can be increased or decreased.
As shown in figure 1, the integrated battery assembly of double-layer modules designed by the design method comprises eight battery modules 1, wherein the battery packages are designed according to the layout boundary and performance requirements of the battery packages, the battery packages are arranged in an upper layer and a lower layer, four battery modules 1 are arranged on each layer, a water cooling plate assembly 3 is bonded at the bottom of each battery module 1, a porous flow channel is arranged on the water cooling plate assembly, a closed heat management cooling liquid flow channel loop is formed by the flow channel structure in the front end plate of a box body and the rear end plate of the box body, the dry-wet separation in the battery packages can be realized, the design of water-free pipes is realized, the assembly performance is improved, and the leakage risk caused by the water pipe adapter is reduced.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The integrated battery assembly of the double-layer module is characterized by comprising a battery box body and a battery pack arranged in the battery box body, wherein the battery pack comprises a plurality of battery modules (1), and the plurality of battery modules (1) are arranged in an upper layer and a lower layer; the battery box body comprises a box body front end plate (4), a box body rear end plate (6), box body side beams (9) and a box body bottom plate, wherein the box body front end plate (4) is arranged at the front end of the battery pack, the box body rear end plate (6) is arranged at the rear end of the battery pack, and the box body side beams (9) are arranged at the left side and the right side of the battery pack and are arranged along the length direction of the battery pack; the box body bottom plate is arranged at the bottom of the battery pack; a water cooling plate assembly (3) is arranged between the two layers of battery modules (1), and a closed heat management cooling liquid flow channel loop is formed by a flow channel in the water cooling plate assembly (3) and flow channel structures in the front end plate (4) and the rear end plate (6) of the box body; a water pipe connector (7) is arranged on the front end plate (4) of the box body, and a cooling liquid loop is formed by the water pipe connector (7) and a flow channel of the water cooling plate assembly (3).
2. The double-layer module integrated battery assembly according to claim 1, wherein the battery box is internally provided with box cross beams (2) and box longitudinal beams (8), the box cross beams (2) and the box longitudinal beams (8) form a grid shape, the box cross beams (2) are arranged along the width direction of the battery pack, and the box longitudinal beams (8) are arranged along the length direction of the battery pack; the battery module (1) is positioned in the grid-shaped structure.
3. The double-layer module integrated battery assembly according to claim 1, wherein the battery module (1) is bonded to the water-cooling plate assembly (3) through a heat-conducting structural adhesive (5), the heat-conducting structural adhesive (5) is used for fixing and heat transfer, and heat transfer can be performed on both sides of the water-cooling plate assembly (3), so that the heat management efficiency is improved.
4. The double-layer module integrated battery assembly according to claim 1, wherein the box body longitudinal beam (8) is provided with a transverse edge structure (801), and the transverse edge structure (801) is clamped with the battery module (1), so that the installation of the battery module (1) is ensured, the installation accuracy of the battery module (1) is improved, and the structural strength is improved.
5. The double-layered modular integrated battery assembly according to claim 1, wherein the water-cooled plate assembly (3) is made of an aluminum alloy, an iron alloy or a titanium alloy.
6. The double-layer module integrated battery assembly according to claim 1, wherein the water pipe connectors (7) are provided with two water inlets and one water outlet, one end of each water pipe connector (7) is connected with the flow channel of the water cooling plate assembly (3) and the front end plate (4) of the box body, and the other end of each water pipe connector is connected with the whole vehicle heat management system to form a complete cooling liquid loop.
7. The double-layer module integrated battery assembly according to claim 1, wherein the water-cooling plate assembly (3) is formed by an extrusion process, and porous flow channels are arranged on the water-cooling plate assembly (3) and form a closed heat management coolant flow channel loop with the flow channel structures inside the box front end plate (4) and the box rear end plate (6).
8. An electric vehicle comprising an integrated battery assembly of a two-layer module as set forth in any one of claims 1-7.
9. A design method of an integrated battery assembly of a double-layer module, which is used for designing the integrated battery assembly of any one of claims 1 to 7, and is characterized by comprising the following steps:
a: taking the battery pack placement boundary and performance requirements as design inputs;
b: determining the number of single batteries according to the matching of the arrangement boundary of the battery pack and the performance requirement;
c: the size of the battery module is reasonably arranged according to the number of the battery monomers, and the length of the module can be adjusted according to the number of the battery monomers;
d: the number of the water cooling plate assemblies (3) is determined according to the number of the battery modules (1), wherein one battery module (1) is arranged on each of the upper surface and the lower surface of one water cooling plate assembly 3;
e: the size of the transverse side structure (801) is designed through the weight of the battery module (1), and the structural strength of the transverse side structure 801 is guaranteed to be within a safety coefficient range;
f: determining the thickness and the flow channel structure of the water cooling plate assembly (3) through CFD thermal management calculation and CAE strength calculation;
g: a flow channel inside the front end plate and the rear end plate is designed through a flow channel of the water cooling plate assembly (3) and is connected with a water pipe joint;
h: the sizes of the battery side edge beam, the front end plate and the rear end plate are designed according to the size height of the double-layer module;
i: and checking the electrical safety and the structural strength of the battery pack.
10. The method as claimed in claim 9, wherein the total length of the battery cells in step C is greater than 95% of the length of the battery module, and the number of the battery cells can be increased or decreased if the length of the module is required to be increased or decreased.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111444106.7A CN114335795A (en) | 2021-11-30 | 2021-11-30 | Integrated battery assembly with double-layer module, electric vehicle and design method |
| PCT/CN2022/108505 WO2023098117A1 (en) | 2021-11-30 | 2022-07-28 | Integrated battery assembly having two layers of modules, and electric vehicle and design method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111444106.7A CN114335795A (en) | 2021-11-30 | 2021-11-30 | Integrated battery assembly with double-layer module, electric vehicle and design method |
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| CN114335795A true CN114335795A (en) | 2022-04-12 |
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| CN202111444106.7A Pending CN114335795A (en) | 2021-11-30 | 2021-11-30 | Integrated battery assembly with double-layer module, electric vehicle and design method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098117A1 (en) * | 2021-11-30 | 2023-06-08 | 中国第一汽车股份有限公司 | Integrated battery assembly having two layers of modules, and electric vehicle and design method |
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| CN114335795A (en) * | 2021-11-30 | 2022-04-12 | 中国第一汽车股份有限公司 | Integrated battery assembly with double-layer module, electric vehicle and design method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023098117A1 (en) * | 2021-11-30 | 2023-06-08 | 中国第一汽车股份有限公司 | Integrated battery assembly having two layers of modules, and electric vehicle and design method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023098117A1 (en) | 2023-06-08 |
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