Battery packaging box, battery loading structure and battery transport vehicle

Abstract

The invention discloses a battery packaging box, a battery loading structure and a battery transport vehicle, the battery packaging box is located in a transport device, and the battery packaging box comprises a box body; the first electrodes of the plurality of batteries in the box body are electrically connected with one another, and the second electrodes of the plurality of batteries are electrically connected with one another. The battery packaging box is located in the transportation device, the voltage of the batteries in the battery packaging box can be balanced in the transportation process of the batteries, the voltage consistency before the batteries are grouped is guaranteed, and overcharging or overdischarging of the single batteries after the batteries are grouped is avoided. Meanwhile, the balance of the battery voltage is completed in the transportation process of the battery, a voltage testing device is not needed to detect the battery voltage, and the manufacturing cost of the battery is reduced.

Description

Technical Field

[0001] The present application relates to the field of batteries, and more specifically to a battery packaging box, a battery loading structure and a battery transportation vehicle. Background Art

[0002] There is a long turnaround time from the production of single cells to packaging and grouping. Due to the difference in self-discharge and equipment between single cells, the SOC (State of Charge) of each single cell will be inconsistent. The longer the time, the more obvious this phenomenon will be. After the batteries are grouped, there will be problems such as overcharging or over-discharging, causing damage to the batteries. Summary of the invention

[0003] The present invention is proposed to solve at least one of the above problems. According to a first aspect of the present application, a battery packaging box is provided, the battery packaging box is located in a transport device, and comprises: a box body; and second electrodes of a plurality of batteries are electrically connected to each other.

[0004] In one embodiment of the present application, the battery packaging box further includes: at least one partition; and the first electrodes of the plurality of batteries in the box are electrically connected via the partition.

[0005] In one embodiment of the present application, there are multiple partitions, including a first partition and a second partition that are opposite to and spaced apart from each other, and multiple batteries are arranged in a battery compartment between the first partition and the second partition. A first conductive circuit is provided on the surface or inside of the first partition, and the first electrodes of the multiple batteries are electrically connected to the first conductive circuit.

[0006] In one embodiment of the present application, a second conductive loop is provided on the surface or inside of the second separator, and the second electrodes of the plurality of batteries are electrically connected via the second conductive loop.

[0007] In one embodiment of the present application, the first conductive loop and the second conductive loop are S-shaped or spiral-shaped.

[0008] In one embodiment of the present application, the second partition is an insulating partition, the shells of the multiple batteries between the first partition and the second partition are conductive shells, the conductive shells serve as the second electrodes of the batteries, and the shells of the multiple batteries are in contact and electrically connected.

[0009] In one embodiment of the present application, the housing includes a first electrical interface and a second electrical interface; the partition is electrically connected to the first electrical interface, and the second electrodes of the plurality of batteries are electrically connected to the second electrical interface.

[0010] In one embodiment of the present application, the separator is a conductive separator made of a conductive material, the first electrodes of the plurality of batteries are electrically connected through one of the conductive separators they contact, and the second electrodes of the plurality of batteries are electrically connected through another conductive separator they contact.

[0011] In one embodiment of the present application, a conductive circuit is arranged in the partition, and a plurality of electrical connection parts are arranged on one side of the partition facing the corresponding plurality of batteries, the plurality of electrical connection parts are electrically connected to the conductive circuit, and each of the electrical connection parts is suitable for contacting and connecting a first electrode or a second electrode of the battery.

[0012] In one embodiment of the present application, when the number of the partitions is three or more, the multiple partitions divide the space in the battery packaging box into at least two battery compartments, and the partition between two adjacent battery compartments is suitable for electrically connecting electrodes of the same polarity of multiple batteries located in different battery compartments; or, the partition between two adjacent battery compartments has a first conductive layer and a second conductive layer, wherein the first conductive layer and the second conductive layer are electrically isolated, and the first conductive layer is suitable for electrically connecting the first electrodes of the multiple batteries in the battery compartment it faces, and the second conductive layer is suitable for electrically connecting the second electrodes of the multiple batteries in the battery compartment it faces.

[0013] In one embodiment of the present application, the battery is a flexible battery, and the partition includes a support plate and a connecting plate; a plurality of first limiting grooves, a plurality of second limiting grooves, a first sub-electrical interface and a second sub-electrical interface are provided on the connecting plate; the first pole ear of the flexible battery is placed in the first limiting groove, the second pole ear of the flexible battery is placed in the second limiting groove, and the flexible battery body is placed on the support plate; a plurality of the first pole ears are electrically connected to the first sub-electrical interface, and a plurality of the second pole ears are electrically connected to the second sub-electrical interface; the first electrical interface is electrically connected to the first sub-electrical interface, and the second electrical interface is electrically connected to the second sub-electrical interface.

[0014] In one embodiment of the present application, the first side plate and the second side plate of the box are made of conductive material, the first side plate serves as the first electrical interface, and the second side plate serves as the second electrical interface.

[0015] In one embodiment of the present application, the first electrical interface and the second electrical interface are arranged on different sides of the box.

[0016] In one embodiment of the present application, the batteries are stacked sideways in the battery compartment.

[0017] In one embodiment of the present application, the battery packaging box further includes: an elastic material, and the elastic material is arranged on the inner surface of the box body.

[0018] According to a second aspect of the present application, a battery loading structure is provided, comprising: a card board and a plurality of battery packaging boxes of any one of the above-mentioned types; the plurality of battery packaging boxes are arranged on the card board, and the plurality of battery packaging boxes are connected in parallel through the first electrical interface and the second electrical interface.

[0019] According to a third aspect of the present application, a battery transport vehicle is provided, comprising: at least one of the above-mentioned battery loading structures.

[0020] In one embodiment of the present application, the card board includes a third electrical interface and a fourth electrical interface; when there are multiple card boards, the multiple card boards are connected in parallel through the third electrical interface and the fourth electrical interface.

[0021] According to the battery packaging box, battery loading structure and battery transport vehicle provided in the embodiments of the present application, the battery packaging box of the present application is located in the transport device, and the battery voltage in the battery packaging box can be balanced during the transportation of the battery, thereby ensuring the voltage consistency before the battery is grouped and avoiding overcharging or over-discharging of a single battery after the battery is grouped. At the same time, the battery voltage is balanced during the battery transportation process, and there is no need for a voltage testing device to detect the battery voltage, thereby reducing the manufacturing cost of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0023] Figure 1 An exploded view of a battery packaging box provided by an embodiment of the present invention;

[0024] Figure 2 An exploded view of a battery packaging box provided by another embodiment of the present invention;

[0025] Figure 3 A schematic diagram of batteries stacked on their sides according to an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the structure of a partition provided by an embodiment of the present invention;

[0027] Figure 5 An exploded view of a partition provided in accordance with an embodiment of the present invention;

[0028] Figure 6 A schematic diagram of the connection of multiple partitions provided in one embodiment of the present invention;

[0029] Figure 7 A schematic diagram of connecting multiple partitions provided in another embodiment of the present invention;

[0030] Figure 8 A schematic diagram of the structure of a first conductive loop and a second conductive loop provided in one embodiment of the present invention;

[0031] Fig. 9 A schematic diagram of a battery loading structure provided by an embodiment of the present invention;

[0032] Fig.10 A schematic diagram of the structure of a battery transport vehicle provided by an embodiment of the present invention;

[0033] Fig.11 A schematic diagram of the connection of multiple battery loading structures provided by one embodiment of the present invention;

[0034] Fig.12 A schematic diagram of the connection of multiple battery loading structures provided by another embodiment of the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present invention more obvious, the exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments of the present invention, and it should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the protection scope of the present invention.

[0036] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0037] It should be understood that the present invention can be implemented in different forms and should not be interpreted as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the disclosure thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0038] In order to fully understand the present invention, a detailed structure will be presented in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail as follows, but in addition to these detailed descriptions, the present invention may also have other implementations.

[0039] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0040] The present application provides a battery packaging box, such as Figure 1 As shown, the battery packaging box 1000 is located in the transport device, and includes: a box body 10001, and the box body 10001 has a containing space for containing batteries.

[0041] It should be noted that the transport device can be a vehicle, ship or other transport tool. Since there is generally a long turnaround time from the production of batteries to grouping, the self-discharge of the batteries may cause voltage differences between the batteries during the turnaround time. The battery packaging box 1000 in the transport device can balance the voltages between the batteries, eliminating the need for additional voltage detection and voltage balancing operations before the batteries are grouped.

[0042] Specifically, the battery packaging box 1000 further includes at least one partition 10002 , and the first electrodes of the plurality of batteries in the box body 10001 are electrically connected via the partition 10002 .

[0043] More specifically, the housing 10001 includes a first electrical interface 100011 and a second electrical interface 100012. The partition 10002 is electrically connected to the first electrical interface 100011, and the second electrodes of the plurality of batteries are electrically connected to the second electrical interface 100012.

[0044] As an example, the second electrodes of a plurality of batteries may be electrically connected in sequence, wherein the second electrode of one of the batteries is electrically connected to the second electrical interface 100012 .

[0045] As another example, the first electrode may be a positive electrode and the second electrode may be a negative electrode.

[0046] Preferably, the first electrical interface 100011 and the second electrical interface 100012 are arranged on different sides of the box body 10001. By arranging the first electrical interface 100011 and the second electrical interface 100012 on different sides, mutual interference between the first electrical interface 100011 and the second electrical interface 100012 can be avoided, thereby improving the safety of the battery packaging box 1000.

[0047] The battery packaging box 1000 of the embodiment of the present invention is located in the transport device, and can balance the voltage of the batteries in the battery packaging box 1000 during the transportation of the batteries, thereby ensuring the voltage consistency of the batteries before grouping and avoiding overcharging or over-discharging of individual batteries after grouping. At the same time, the battery voltage is balanced during the transportation of the batteries, and there is no need for a voltage testing device to detect the battery voltage, thereby reducing the manufacturing cost of the batteries.

[0048] In some embodiments, Figure 2 As shown, there are multiple partitions 10002, and the multiple partitions 10002 include a first partition 100021 and a second partition 100022 that are opposite and spaced apart, and multiple batteries are arranged in the battery compartment between the first partition 100021 and the second partition 100022. A first conductive circuit is provided on the surface or inside of the first partition 100021, and the first electrodes of the multiple batteries are electrically connected to the first conductive circuit.

[0049] Specifically, a second conductive loop is provided on the surface or inside of the second separator 100022, and the second electrodes of the plurality of batteries are electrically connected via the second conductive loop.

[0050] In this embodiment, the electrical connection between the batteries is simplified by the first conductive loop and the second conductive loop, thereby improving the reliability and safety of the battery packaging box 1000 .

[0051] It should be noted that Figure 1 and Figure 2 The number of partitions 10002 given in the figure is 3, which is only an example. The specific number of partitions 10002 can be determined according to actual application conditions.

[0052] In some embodiments, Figure 1 As shown, the second separator 100022 is an insulating separator, and the shells of the multiple batteries between the first separator 100021 and the second separator 100022 are conductive shells, which serve as the second electrodes of the batteries. The shells of the multiple batteries are in contact and electrically connected.

[0053] As an example, the insulating partition may be made of glass fiber reinforced plastic or polytetrafluoroethylene.

[0054] In this embodiment, the conductive shell is directly used as the second electrode of the battery, so that the batteries can be directly connected through the shell without the need for additional electrode connectors, thereby reducing the manufacturing cost.

[0055] In some embodiments, separator 10002 is a conductive separator made of a conductive material, and the first electrodes of the plurality of batteries are electrically connected through one conductive separator that it contacts, and the second electrodes of the plurality of batteries are electrically connected through another conductive separator that it contacts.

[0056] As an example, if there are multiple battery compartments in the battery packaging box 1000, the polarities of the batteries connected to the batteries on both sides of the conductive partition are the same.

[0057] As another example, the conductive material may be a metal material, among which aluminum foil is a preferred material due to its light density, low resistivity and low price. It may also be a non-metallic material, such as graphite, conductive ink, etc.

[0058] In this embodiment, the voltage balance of each battery in the battery package 1000 is ensured by using a conductive separator.

[0059] In some embodiments, a conductive circuit is disposed in the partition 10002, and a plurality of electrical connection portions are disposed on one side of the partition 10002 facing the corresponding plurality of batteries. The plurality of electrical connection portions are electrically connected to the conductive circuit, and each electrical connection portion is suitable for contacting and connecting a first electrode or a second electrode of a battery.

[0060] As an example, the shape of the electrical connection portion may be a protrusion, and at the same time, the electrode of the battery may also be provided with a protrusion to facilitate the connection between the electrode of the battery and the conductive circuit.

[0061] In this embodiment, a plurality of electrical connection parts are provided on one side of the partition 10002 facing the corresponding plurality of batteries, so that each battery can form a good electrical connection with the partition 10002 .

[0062] In some embodiments, Figure 3 As shown, the batteries are stacked on their sides in the battery compartment.

[0063] It should be noted that when there are multiple battery compartments, the multiple battery compartments are arranged horizontally, and the partition 10002 is perpendicular to the horizontal plane.

[0064] In this embodiment, the batteries are stacked in the battery compartment, and due to gravity the batteries are close together, ensuring that the battery housings maintain good contact.

[0065] In some embodiments, the battery packaging box further includes: an elastic material, and the elastic material is disposed on the inner surface of the box body 10001 .

[0066] In this embodiment, the elastic material can make the batteries in the battery compartment close together. When the battery housing is the second electrode, it further ensures that the batteries maintain good electrical connection.

[0067] In some embodiments, when the number of partitions 10002 is three or more, multiple partitions 10002 divide the space in the battery packaging box into at least two battery compartments, and the partition 10002 between two adjacent battery compartments is suitable for electrically connecting electrodes of the same polarity of multiple batteries located in different battery compartments; or, the partition 10002 between two adjacent battery compartments has a first conductive layer and a second conductive layer, wherein the first conductive layer and the second conductive layer are electrically isolated, and the first conductive layer is suitable for electrically connecting the first electrodes of the multiple batteries in the battery compartment it faces, and the second conductive layer is suitable for electrically connecting the second electrodes of the multiple batteries in the battery compartment it faces.

[0068] It should be noted that the partition 10002 between two adjacent battery compartments can be a common conductive plate. For example, when the number of battery compartments is 2, three partitions are required, namely, a common conductive plate and two conductive partitions, the two conductive partitions are connected to the first electrodes of the batteries in the battery compartments, and the common conductive plate is connected to the second electrodes of the batteries in the battery compartments.

[0069] In this embodiment, the polarity of the batteries on one side or both sides of the partition 10002 can be set according to actual needs, thereby improving the flexibility of storing batteries.

[0070] In some embodiments, Figure 4 and Figure 5 As shown, the battery is a flexible battery, and the partition 10002 includes a support plate 100023 and a connecting plate 100024; a plurality of first limiting grooves 1000241, a plurality of second limiting grooves 1000242, a first sub-electrical interface 1000243 and a second sub-electrical interface 1000244 are provided on the connecting plate 100024; the first pole ear of the flexible battery is placed in the first limiting groove 1000241, the second pole ear of the flexible battery is placed in the second limiting groove 1000242, and the flexible battery body is placed on the support plate 100023; the plurality of first pole ears are electrically connected to the first sub-electrical interface 1000243, and the plurality of second pole ears are electrically connected to the second sub-electrical interface 1000244; the first electrical interface 100011 is electrically connected to the first sub-electrical interface 1000243, and the second electrical interface 100012 is electrically connected to the second sub-electrical interface.

[0071] It should be noted that Figure 4 and Figure 5 The number of the first limiting grooves 1000241 and the second limiting grooves 1000242 given in the figure is 4, which is only an example. The specific number of the first limiting grooves 1000241 and the second limiting grooves 1000242 can be determined according to the actual application situation.

[0072] As an example, the plurality of first limiting grooves 1000241 can electrically connect the first pole ears to each other through a built-in circuit, and the plurality of second limiting grooves 1000242 can also electrically connect the second pole ears to each other through a built-in circuit.

[0073] As another example, after the first pole tabs are placed in the first limiting groove 1000241, they can be connected to each other through a wire. After the second pole tabs are placed in the second limiting groove 1000242, they can also be connected to each other through a wire.

[0074] Preferably, if Figure 6As shown, when there are multiple partitions 10002, the first sub-electrical interfaces 1000243 in each connection board 100024 can be electrically connected in sequence through wires, and the second sub-electrical interfaces 1000244 in each connection board 100024 can be electrically connected in sequence through wires. Figure 7 As shown, the first limiting grooves 1000241 at corresponding positions in each connecting plate 100024 can also be connected together to the first limiting grooves 1000241 at one of the corresponding positions, and the second limiting grooves 1000242 at corresponding positions in each connecting plate 100024 can be connected together to the second limiting grooves 1000242 at one of the corresponding positions, so as to realize the mutual parallel connection of each flexible battery.

[0075] It should be noted that Figure 6 The number of partitions 10002 given in the figure is 2, which is only an example. The specific number of partitions 10002 can be determined according to actual application conditions.

[0076] In some embodiments, Figure 8 As shown, the first conductive loop and the second conductive loop are S-shaped or spiral-shaped.

[0077] It should be noted that the S-shape represents the shapes of the first conductive loop and the second conductive loop, and does not limit the number of times the first conductive loop and the second conductive loop are bent.

[0078] In this embodiment, each battery can maintain a good conduction state through the S-shaped or spiral-shaped first conductive loop and the second conductive loop, thereby ensuring the voltage consistency before the batteries are grouped.

[0079] In some embodiments, the partition may not be provided in the box, but one or more side plates of the box may be used to realize the electrical connection of the first electrodes of the multiple batteries and the electrical connection of the second electrodes of the multiple batteries. Some of the aforementioned structures of the partition may also be applicable to one or more side plates of the box.

[0080] In some embodiments, the first side plate and the second side plate of the box 10001 are made of conductive material, the first side plate serves as the first electrical interface 100011, and the second side plate serves as the second electrical interface 100012. The first side plate and the second side plate are electrically isolated from each other.

[0081] It should be noted that when there are multiple battery packaging boxes 1000 and they need to be connected in parallel, multiple first side plates can be electrically connected in sequence through wires, and multiple second side plates can also be electrically connected in sequence through wires.

[0082] In this embodiment, by directly using the first side plate as the first electrical interface 100011 and the second side plate as the second electrical interface 100012, there is no need to set an electrical interface on the outside of the box body 10001, thereby saving the overall manufacturing cost of the battery packaging box 1000.

[0083] In addition, the present application provides a battery loading structure, such as Fig. 9 As shown, the battery loading structure 100 includes: a card board 2000 and a plurality of any one of the above-mentioned battery packaging boxes 1000 .

[0084] It should be noted that Fig. 9 The number of battery packaging boxes 1000 given in the figure is 2, which is only an example. The specific number of battery packaging boxes 1000 can be determined according to actual application conditions.

[0085] A plurality of battery packaging boxes 1000 are disposed on the card board 2000 , and the plurality of battery packaging boxes 1000 are connected in parallel via the first electrical interface 100011 and the second electrical interface 100012 .

[0086] As an example, multiple first electrical interfaces 100011 can be electrically connected through wires, and multiple second electrical interfaces 100012 can also be electrically connected through wires.

[0087] The battery loading structure 100 of the embodiment of the present invention ensures the voltage consistency of the batteries before they are grouped by balancing the voltages of the multiple battery packaging boxes 1000, thereby avoiding overcharging or over-discharging of individual batteries after the batteries are grouped.

[0088] In addition, the present application provides a battery transport vehicle, such as Fig.10 As shown, the battery transport vehicle 10 includes: at least one battery loading structure 100 as described above.

[0089] As an example, Fig.11 As shown, when the number of battery loading structures 100 is 2, the first electrical interfaces 100011 on each battery packaging box 1000 are connected to each other through a wire, and the second electrical interfaces 100012 on each battery packaging box 1000 are also connected to each other through a wire.

[0090] The battery transport vehicle 10 of the embodiment of the present invention ensures the voltage consistency of the batteries before they are grouped by balancing the voltages of the multiple batteries inside, thereby avoiding overcharging or over-discharging of a single battery after the batteries are grouped.

[0091] In some embodiments, Fig.12As shown, the card board 2000 includes a third electrical interface 20001 and a fourth electrical interface 20002 ; when there are multiple card boards 2000 , the multiple card boards 2000 are connected in parallel via the third electrical interface 20001 and the fourth electrical interface 20002 .

[0092] It should be noted that Fig.11 and Fig.12 The number of the card boards 2000 given in the figure is 2, which is only an example. The specific number of the card boards 2000 can be determined according to the actual application situation.

[0093] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present application to this. Those of ordinary skill in the art may make various changes and modifications therein without departing from the scope and spirit of the present application. All these changes and modifications are intended to be included within the scope of the present application as required by the appended claims.

[0094] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0095] Similarly, it should be understood that in order to streamline the present application and help understand one or more of the various inventive aspects, in the description of the exemplary embodiments of the present application, the various features of the present application are sometimes grouped together into a single embodiment, figure, or description thereof. However, the method of the present application should not be interpreted as reflecting the following intention: the claimed application requires more features than the features clearly stated in each claim. More specifically, as reflected in the corresponding claims, the inventive point is that the corresponding technical problem can be solved with features less than all the features of a single disclosed embodiment. Therefore, the claims following the specific embodiment are hereby explicitly incorporated into the specific embodiment, wherein each claim itself serves as a separate embodiment of the present application.

[0096] It will be understood by those skilled in the art that, except for mutually exclusive features, all features disclosed in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device disclosed in this specification may be combined in any combination. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose.

[0097] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0098] It should be noted that the above embodiments illustrate the present application rather than limit the present application, and that those skilled in the art may design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets should not be constructed as a limitation to the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of multiple such elements. The present application may be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In a unit claim that lists several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names.

[0099] The above is only a specific implementation or description of a specific implementation of the present application, and the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. The protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A battery packaging box, characterized in that: The battery packaging box is located in the transport device and includes: a box body; The first electrodes of the plurality of batteries in the box are electrically connected to each other, and the second electrodes of the plurality of batteries are electrically connected to each other.

2. The battery packaging box according to claim 1, characterized in that: The battery packaging box further comprises: at least one partition; The first electrodes of the plurality of batteries in the box are electrically connected via one of the separators.

3. The battery packaging box according to claim 2, characterized in that: There are multiple partitions, including a first partition and a second partition that are opposite to and spaced apart from each other. Multiple batteries are arranged in a battery compartment between the first partition and the second partition. A first conductive circuit is provided on the surface or inside of the first partition, and the first electrodes of the multiple batteries are electrically connected to the first conductive circuit.

4. The battery packaging box according to claim 3, characterized in that: A second conductive loop is provided on the surface or inside of the second separator, and the second electrodes of the plurality of batteries are electrically connected via the second conductive loop.

5. The battery packaging box according to claim 4, characterized in that: The first conductive loop and the second conductive loop are S-shaped or spiral-shaped.

6. The battery packaging box according to claim 3, characterized in that: The second separator is an insulating separator, the shells of the plurality of batteries between the first separator and the second separator are conductive shells, the conductive shells serve as the second electrodes of the batteries, and the shells of the plurality of batteries are in contact and electrically connected.

7. The battery packaging box according to claim 2, characterized in that: The box includes a first electrical interface and a second electrical interface; The partition is electrically connected to the first electrical interface, and the second electrodes of the plurality of batteries are electrically connected to the second electrical interface.

8. The battery packaging box according to claim 2, characterized in that: The separator is a conductive separator made of a conductive material, the first electrodes of the plurality of batteries are electrically connected through one of the conductive separators they contact, and the second electrodes of the plurality of batteries are electrically connected through another conductive separator they contact.

9. The battery packaging box according to claim 2, characterized in that: A conductive circuit is arranged inside the partition, and a plurality of electrical connection parts are arranged on one side of the partition facing the corresponding plurality of batteries. The plurality of electrical connection parts are electrically connected to the conductive circuit, and each of the electrical connection parts is suitable for contacting and connecting a first electrode or a second electrode of the battery.

10. The battery packaging box according to claim 2, characterized in that: When the number of the partitions is three or more, the multiple partitions divide the space in the battery packaging box into at least two battery compartments, and the partition between two adjacent battery compartments is suitable for electrically connecting electrodes of the same polarity of multiple batteries located in different battery compartments; Alternatively, the partition between two adjacent battery compartments has a first conductive layer and a second conductive layer, wherein the first conductive layer and the second conductive layer are electrically isolated, the first conductive layer is suitable for electrically connecting the first electrodes of the plurality of batteries in the battery compartment it faces, and the second conductive layer is suitable for electrically connecting the second electrodes of the plurality of batteries in the battery compartment it faces.

11. The battery packaging box according to claim 7, characterized in that: The battery is a flexible battery, and the separator includes a supporting plate and a connecting plate; The connecting plate is provided with a plurality of first limiting grooves, a plurality of second limiting grooves, a first sub-electrical interface and a second sub-electrical interface; The first pole lug of the flexible battery is placed in the first limiting groove, the second pole lug of the flexible battery is placed in the second limiting groove, and the flexible battery body is placed on the support plate; A plurality of the first pole tabs are electrically connected to the first sub-electrical interface, and a plurality of the second pole tabs are electrically connected to the second sub-electrical interface; The first electrical interface is electrically connected to the first sub-electrical interface, and the second electrical interface is electrically connected to the second sub-electrical interface.

12. The battery packaging box according to claim 7, characterized in that: The first side plate and the second side plate of the box body are made of conductive material, the first side plate serves as the first electrical interface, and the second side plate serves as the second electrical interface.

13. The battery packaging box according to claim 7, characterized in that: The first electrical interface and the second electrical interface are arranged on different sides of the box.

14. The battery packaging box according to claim 6, characterized in that: The batteries are stacked sideways in the battery compartment.

15. The battery packaging box according to claim 1, characterized in that: The battery packaging box further comprises: an elastic material, wherein the elastic material is arranged on the inner surface of the box body.

16. A battery loading structure, characterized in that: include: A cardboard and a plurality of battery packaging boxes according to any one of claims 1 to 15; A plurality of the battery packaging boxes are arranged on the card board, and the plurality of the battery packaging boxes are connected in parallel via the first electrical interface and the second electrical interface.

17. A battery transport vehicle, characterized in that: include: At least one battery loading structure as claimed in claim 16.

18. The battery transport vehicle according to claim 17, characterized in that: The card board includes a third electrical interface and a fourth electrical interface; When there are multiple card boards, the multiple card boards are connected in parallel through the third electrical interface and the fourth electrical interface.

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