CN218101582U - Battery pack case cover and battery pack - Google Patents
Battery pack case cover and battery pack Download PDFInfo
- Publication number
- CN218101582U CN218101582U CN202221531080.XU CN202221531080U CN218101582U CN 218101582 U CN218101582 U CN 218101582U CN 202221531080 U CN202221531080 U CN 202221531080U CN 218101582 U CN218101582 U CN 218101582U
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- cover plate
- cover
- battery pack
- apron
- cavity
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- 230000003014 reinforcing effect Effects 0.000 claims description 10
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- 238000009413 insulation Methods 0.000 abstract description 18
- 238000004321 preservation Methods 0.000 abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 4
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- 208000010392 Bone Fractures Diseases 0.000 description 2
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- 239000011324 bead Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery package case lid and battery package, this battery package case lid include first apron and second apron, are provided with the recess on the first apron, and the second apron lid is established on the recess to with first cover connection, be formed with the cavity between first apron and the second apron, pack thermal-insulated gas in the cavity, with the heat transfer between first apron of separation and the second apron. Compare in conventional individual layer apron structure, the utility model discloses a bilayer structure of first apron and second apron has promoted its structural strength greatly, insulates against heat through the cavity simultaneously, has effectively obstructed the inside and outside heat transfer of battery cover to avoid thermal a large amount of losing, thermal insulation performance is good, has improved battery system's heat preservation ability effectively.
Description
Technical Field
The utility model relates to a battery technology field particularly, relates to a battery package case lid and battery package.
Background
Along with the quick development of new energy automobile, the continuation of the journey of electric automobile under low temperature environment becomes the focus problem of being paid attention to, because electric automobile's power battery is low temperature resistant characteristic not, leads to the continuation of the journey of automobile under low temperature environment to shorten greatly, seriously restricts electric automobile's emergence, brings relatively poor experience for the user.
The research of the inventor finds that the existing battery cover has poor heat-insulating capability due to the adoption of a single-layer structure, and the requirement on low-temperature resistance of the battery is difficult to realize. Therefore, a new way to improve the thermal insulation performance of the power battery pack is needed, so as to alleviate the low-temperature thermal insulation capability of the battery system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a battery package case lid and battery package, its thermal insulation performance is good, can effectively improve battery system's heat preservation ability, promotes the structural strength and the anti-seismic performance of battery cover simultaneously by a wide margin.
The embodiment of the utility model is realized like this:
in a first aspect, the utility model provides a battery case lid, including first apron and second apron, be provided with the recess on the first apron, the second apron lid is established on the recess, and with first cover connection, first apron with be formed with the cavity between the second apron, pack thermal-insulated gas in the cavity, with the separation first apron with heat transfer between the second apron.
In an alternative embodiment, the first cover plate comprises a cover plate body and a connecting flange, wherein at least a partial area of the cover plate body is recessed towards a direction away from the second cover plate to form the groove, and the connecting flange is arranged on the periphery of the cover plate body and is connected with the periphery of the second cover plate.
In an alternative embodiment, the recess extends over the entire area of the cover body, which is spaced apart from the second cover plate, so that the cavity is formed between the cover body and the second cover plate.
In an alternative embodiment, the first cover plate is a metal plate, and the second cover plate is a non-metal plate and is disposed near the core.
In an alternative embodiment, the connecting flange is glued or welded to the periphery of the second cover plate.
In an alternative embodiment, a plurality of reinforcing ribs protruding towards the first cover plate are arranged on the second cover plate, and the plurality of reinforcing ribs are distributed in the cavity at intervals to prevent the first cover plate from collapsing.
In an alternative embodiment, the thickness of the cavity is the same as the height of each rib protruding relative to the second cover plate, so that each rib abuts against the surface of the first cover plate.
In an alternative embodiment, each of the ribs has a protrusion height of between 2 and 5mm with respect to the second cover plate.
In an alternative embodiment, the cross-sectional shape of the reinforcing bar is oval, # -shaped or strip-shaped.
In a second aspect, the present invention provides a battery pack, including electric core, casing and as in any one of the above embodiments the battery pack case lid, the electric core holding is in the casing, just the casing is provided with an opening for the electric core to pack into, the battery pack case lid sets up on the opening.
The utility model discloses beneficial effect includes:
the utility model provides a battery package case lid and battery package, its bilayer structure through setting up interconnect's first apron and second apron to be formed with the cavity between first apron and the second apron, the cavity intussuseption is filled with thermal-insulated gas, can separate the heat transfer between first apron and the second apron. Compare in conventional individual layer apron structure, the utility model discloses a bilayer structure of first apron and second apron has promoted its structural strength greatly, insulates against heat through the cavity simultaneously, has effectively obstructed the inside and outside heat transfer of battery cover to avoid thermal a large amount of losing, thermal insulation performance is good, has improved battery system's heat preservation ability effectively.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is an exploded schematic view of a battery pack case cover according to a first embodiment of the present invention;
FIG. 2 is a schematic view of the first cover in FIG. 1;
fig. 3 is a schematic view of the overall structure of the battery pack case cover according to the first embodiment of the present invention.
An icon:
100-battery pack case cover; 110-a first cover plate; 111-a cover plate body; 113-connecting a flanging; 130-a second cover plate; 131-reinforcing ribs; 150-a groove; 151-cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
Referring to fig. 1 to 3, the present invention provides a battery pack case cover 100, which can effectively improve the heat transfer resistance externally connected to the inside of the battery pack, improve the low temperature heat preservation capability of the battery system, effectively improve the strength of the battery system, and improve the anti-seismic performance of the battery cover. And can greatly reduce the risk of battery cover fracture, play double-deck safeguard function, promote the protect function to electric core. Meanwhile, thermal shock can be effectively blocked after thermal runaway, so that the whole vehicle is free from the risk of thermal runaway shock.
The battery pack case cover 100 provided by this embodiment includes a first cover plate 110 and a second cover plate 130, a groove 150 is disposed on the first cover plate 110, the second cover plate 130 is disposed on the groove 150 and connected to the first cover plate 110, a cavity 151 is formed between the first cover plate 110 and the second cover plate 130, and a heat insulating gas is filled in the cavity 151 to block heat transfer between the first cover plate 110 and the second cover plate 130.
In this embodiment, the battery pack case cover 100 is suitable for a power battery pack, and is covered on a casing of the battery pack, so that an internal battery cell is separated from the outside, the battery pack case cover is formed by a double-layer structure of a first cover plate 110 and a second cover plate 130 which are connected with each other, a cavity 151 is formed between the first cover plate 110 and the second cover plate 130, and a heat insulation gas is filled in the cavity 151, so that heat transfer between the first cover plate 110 and the second cover plate 130 can be blocked. Compare in conventional individual layer apron structure, the utility model discloses a bilayer structure of first apron 110 and second apron 130 has promoted its structural strength greatly, insulates against heat through cavity 151 simultaneously, and effective separation has the inside and outside heat transfer of battery cover to avoid thermal in a large number to lose, thermal insulation performance is good, has improved battery system's heat preservation ability effectively.
It should be noted that, during the actual installation process, the first cover plate 110 is located at the upper side, the second cover plate 130 is located at the lower side, that is, the second cover plate 130 is located relatively closer to the internal electric core, the first cover plate 110 has a convex outer side protruding upwards, wherein the heat insulating gas filled in the cavity 151 may be air, and the formed air layer can effectively isolate the heat transfer between the first cover plate 110 and the second partition plate, thereby achieving the heat preservation. Of course, in other preferred embodiments of the present invention, the first cover plate 110 may be located at the lower side, and the second cover plate 130 may be located at the upper side, that is, the first cover plate 110 is relatively closer to the internal battery cell, which can also achieve the effects of heat insulation and heat preservation, and the installation manner thereof is not limited in detail herein.
In the present embodiment, the first cover plate 110 includes a cover plate body 111 and a connection flange 113, at least a partial region of the cover plate body 111 is recessed toward a direction away from the second cover plate 130 to form a groove 150, and the connection flange 113 is disposed at a periphery of the cover plate body 111 and connected to a periphery of the second cover plate 130. Specifically, the connecting flange 113 is arranged around the cover plate body 111, and the connecting flange 113 and the cover plate body 111 are integrally arranged, so that when the connecting flange 113 is installed, the connecting flange 113 is attached to the edge of the second cover plate 130 and connected to the edge, and therefore the second cover plate 130 can be covered on the groove 150 to form a cavity 151 structure.
In the present embodiment, the groove 150 extends to the entire region of the cover plate body 111, and the cover plate body 111 is spaced apart from the second cover plate 130, so that a cavity 151 is formed between the cover plate body 111 and the second cover plate 130. Specifically, the entire cover plate body 111 may be upwardly protruded and the groove 150 may be formed at the inner side, so that the cover plate body 111 and the second cover plate 130 are not in contact with each other, and the heat insulation effect is further ensured.
It is worth noting that, here, the cavity 151 is transversely disposed between the cover plate body 111 and the second cover plate 130, and completely separates the heat transfer between the two, in other preferred embodiments of the present invention, a plurality of grooves 150 may also be disposed on the cover plate body 111, that is, the grooves 150 are formed on the cover plate body 111 by locally sinking, and there is also a partial connection relationship between the cover plate body 111 and the second cover plate 130, which can also achieve a good heat insulation effect.
In this embodiment, one of the first cover plate 110 and the second cover plate 130 is a non-metal plate, and the other is a metal plate, the non-metal plate is used to be disposed close to the electric core, and the shapes of the first cover plate 110 and the second cover plate 130 are matched, so that the edge of the connecting flange 113 is flush with the edge of the second cover plate 130. Specifically, the first cover plate 110 is a metal plate, the second cover plate 130 is a non-metal plate, the second cover plate 130 is disposed near the battery cell, and the first cover plate 110 and the second cover plate 130 are made of different materials. First apron 110 specifically can adopt materials such as aluminium, steel, and second apron 130 specifically can adopt materials such as glass fiber, carbon fiber, SMC (sheet molding compound), and because the thermal insulation performance under the low temperature environment is good, so second apron 130 is less with the inside difference in temperature of battery package in the in-service use process, can effectively avoid appearing the problem of condensation on the second apron 130, and then has avoided the risk of condensation drippage on electric core.
It should be noted that in the present embodiment, the first cover plate 110 is made of a metal material, so the groove 150 can be formed by stamping or machining, and the second cover plate 130 is made of a non-metal material, so the groove can be formed by machining or die machining.
It should be noted that, in this embodiment, the second cover plate 130 is made of a non-metal material, the temperature resistance range of which is generally 200 to 600 ℃, the first cover plate 110 is made of a metal material, the temperature resistance range of which is 600 to 1200 ℃, when the thermal runaway of the battery pack occurs, the temperature of a substance sprayed from the battery core sometimes reaches 1000 ℃, and the non-metal material is difficult to block, but due to the double-layer design, the time for the thermal runaway flame to rush out of the battery pack case cover 100 can be delayed, a longer escape time is provided for passengers, and the safety is better.
In the present embodiment, the connection flange 113 is bonded to the periphery of the second cover plate 130. Specifically, the first cover plate 110 and the second cover plate 130 are fixed by bonding, which may be achieved by structural adhesive, and the tensile strength of the structural adhesive should be greater than 20Mpa, so as to ensure the strength of the connection structure between the first cover plate 110 and the second cover plate 130.
In other preferred embodiments of the present invention, the connecting flange 113 may also be welded to the periphery of the second cover plate 130. Specifically, the first cover plate 110 and the second cover plate 130 are fixed by welding, and the temperature of the welding is close to the melting point temperature of the non-metallic material of the second cover plate 130, that is, the welding temperature range is between 200 ℃ and 600 ℃, so as to ensure a good welding effect.
In this embodiment, the second cover plate 130 is provided with a plurality of ribs 131 protruding toward the first cover plate 110, and the plurality of ribs 131 are distributed in the cavity 151 at intervals to prevent the first cover plate 110 from collapsing. Specifically, a plurality of strengthening ribs 131 are evenly distributed on the second cover plate 130 in an array manner and protrude upwards, so that a good supporting effect can be achieved, the first cover plate 110 is prevented from collapsing downwards, and the overall structural strength is improved.
In the present embodiment, the thickness of the cavity 151 is the same as the protruding height of each rib 131 relative to the second cover plate 130, so that each rib 131 abuts against the surface of the first cover plate 110. Specifically, the reinforcing ribs 131 abut against the inner side surface of the first cover plate 110, so that a better supporting effect can be achieved, and the overall structural strength can be further improved.
It should be noted that, here, the ribs 131 are protruded on the second cover plate 130 and intrude into the cavity 151, and in order to ensure the heat insulation effect of the cavity 151, the volume of all the ribs 131 does not exceed 30% of the entire volume of the cavity 151.
In the present embodiment, the height of each bead 131 is 2-5mm with respect to the second cover plate 130. Preferably, the protruding height of each rib 131 with respect to the second cover plate 130 is 3mm, that is, the thickness of the cavity 151 is also 3mm, so that the heat insulation effect is ensured, and the bulge volume of the whole battery pack case cover 100 is not too large. And when the external environment temperature is too high or too low, the influence of the external environment temperature can be effectively prevented due to the air layer in the middle.
In the present embodiment, the cross-sectional shape of the reinforcing beads 131 is an ellipse, a well, or a bar. Preferably, each of the reinforcing ribs 131 in this embodiment has a strip-shaped cross section, so as to achieve a good supporting effect. The first cover plate 110 and the second cover plate 130 are jointed by arranging the reinforcing ribs 131, so that the overall structural strength is improved, and the risk of cracking is reduced.
It should be noted that, in order to avoid a large amount of heat transfer between the reinforcing ribs 131 and the first cover plate 110, an insulating mat (not shown) may be additionally disposed on the top surfaces of the reinforcing ribs 131 in this embodiment.
In this embodiment, a hollow double-layer cover structure is adopted, the first cover plate 110 is made of a metal material, the second cover plate 130 is made of a non-metal material, the heat insulation performance is better, the conventional common upper cover and the hollow upper cover are subjected to thermal resistance comparison analysis, the thermal resistance is larger, and the heat transfer is slower, for example:
common single layer upper cap thermal resistance: delta 1 /λ 1 ；
Thermal resistance of the hollow upper cover: delta. For the preparation of a coating 1 /λ 1 (thermal resistance of metallic Material) + Delta 2 /λ 2 (intermediate air layer thermal resistance) + δ 3 /λ 3 (non-metallic material thermal resistance);
therefore, the hollow material greatly increases the heat transfer resistance, delta, because the air layer in the middle is a poor heat conductor 1 /λ 1 ＜(δ 1 /λ 1 +δ 2 /λ 2 +δ 3 /λ 3 ) So that the design of the utility model is superior to the design of the common single-layer upper cover; where δ represents the thickness of the material and λ represents the thermal conductivity of the material.
In summary, in the battery pack case lid 100 provided by the present embodiment, the first cover plate 110 and the second cover plate 130 are connected to each other, and the cavity 151 is formed between the first cover plate 110 and the second cover plate 130, and the heat insulation gas is filled in the cavity 151, so that the heat transfer between the first cover plate 110 and the second cover plate 130 can be blocked. Simultaneously, through design strengthening rib 131, can effectively promote holistic structural strength, avoid the fracture risk. In addition, the temperature difference between the second cover plate 130 and the internal battery core is small, so that the condensation phenomenon can be effectively reduced, and the safety risk caused by the dripping of the condensation is avoided. Compare in conventional individual layer apron structure, the utility model discloses a bilayer structure of first apron 110 and second apron 130 has promoted its structural strength greatly, insulates against heat through cavity 151 simultaneously, and effective separation has the inside and outside heat transfer of battery cover to avoid thermal in a large number to lose, thermal insulation performance is good, has improved battery system's heat preservation ability effectively.
Second embodiment
The present embodiment provides a battery pack, which includes a battery pack case cover 100, wherein the basic structure and principle of the battery pack case cover 100 and the generated technical effects are the same as those of the first embodiment, and for the sake of brief description, reference may be made to corresponding contents in the first embodiment to the points that are not mentioned in this embodiment.
In this embodiment, the battery pack includes a battery cell, a casing, and a battery pack case cover 100, the battery cell is accommodated in the casing, the casing is provided with an opening for the battery cell to be inserted, and the battery pack case cover 100 is disposed on the opening. The battery pack case cover 100 includes a first cover plate 110 and a second cover plate 130, the first cover plate 110 is provided with a groove 150, the second cover plate 130 is covered on the groove 150 and connected with the first cover plate 110, a cavity 151 is formed between the first cover plate 110 and the second cover plate 130, and the cavity 151 is filled with a heat insulation gas to block heat transfer between the first cover plate 110 and the second cover plate 130.
It should be noted that the battery pack in this embodiment may be a vehicle-scale power battery pack, and is used by an electric vehicle.
In the battery pack provided by the present embodiment, the battery pack case cover 100 is adopted as a battery cover plate, a double-layer structure of the first cover plate 110 and the second cover plate 130 connected to each other is provided, a cavity 151 is formed between the first cover plate 110 and the second cover plate 130, and the cavity 151 is filled with a heat insulating gas, so that heat transfer between the first cover plate 110 and the second cover plate 130 can be blocked. Compared with a conventional battery with a single-layer cover plate structure, the battery has the advantages that the structural strength is greatly improved through the double-layer structure of the first cover plate 110 and the second cover plate 130, heat insulation is realized through the cavity 151, heat transfer inside and outside the battery cover is effectively blocked, accordingly, a large amount of heat loss is avoided, the heat preservation performance is good, and the heat preservation capacity of a battery system is effectively improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The battery pack case cover is characterized by comprising a first cover plate and a second cover plate, wherein a groove is formed in the first cover plate, the second cover plate is arranged on the groove in a covering mode and connected with the first cover plate, and a cavity is formed between the first cover plate and the second cover plate to block heat transfer between the first cover plate and the second cover plate.
2. The battery pack case cover according to claim 1, wherein the first cover plate includes a cover plate body at least a part of which is recessed away from the second cover plate to form the recess, and a connecting flange provided at a periphery of the cover plate body and connected to a periphery of the second cover plate.
3. The battery pack case lid according to claim 2, wherein the groove extends to the entire area of the cover body such that the cavity is formed between the cover body and the second cover.
4. The battery pack case cover of claim 2, wherein the first cover plate is a metal plate and the second cover plate is a non-metal plate and is disposed adjacent to the battery cell.
5. The battery pack case cover according to claim 2, wherein the connecting flanges are bonded or welded to the periphery of the second cover plate.
6. The battery pack case cover according to any one of claims 1 to 5, wherein the second cover plate is provided with a plurality of ribs protruding toward the first cover plate, and the plurality of ribs are distributed at intervals in the cavity to prevent the first cover plate from collapsing.
7. The battery pack case cover according to claim 6, wherein the thickness of the cavity is the same as the height of each of the ribs protruding relative to the second cover plate, so that each of the ribs abuts against the surface of the first cover plate.
8. The battery pack case cover according to claim 7, wherein each of the ribs has a protrusion height of between 2 and 5mm with respect to the second cover plate.
9. The battery pack case cover according to claim 6, wherein the cross-sectional shape of the reinforcing rib is oval, # -shaped or strip-shaped.
10. A battery pack comprising a cell, a housing and a battery pack cover as claimed in any one of claims 1 to 9, the cell being housed within the housing, the housing being provided with an opening into which the cell fits, the battery pack cover being provided over the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221531080.XU CN218101582U (en) | 2022-06-17 | 2022-06-17 | Battery pack case cover and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221531080.XU CN218101582U (en) | 2022-06-17 | 2022-06-17 | Battery pack case cover and battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN218101582U true CN218101582U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221531080.XU Active CN218101582U (en) | 2022-06-17 | 2022-06-17 | Battery pack case cover and battery pack |
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| CN (1) | CN218101582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024141199A1 (en) * | 2022-12-26 | 2024-07-04 | Stellantis Auto Sas | Battery pack assembly for vehicle and vehicle |
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2022
- 2022-06-17 CN CN202221531080.XU patent/CN218101582U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024141199A1 (en) * | 2022-12-26 | 2024-07-04 | Stellantis Auto Sas | Battery pack assembly for vehicle and vehicle |
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Address after: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 No. 68, Xin'anjiang Road, Southeast street, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |