CN110600666B - Battery pack and method for manufacturing same - Google Patents
Battery pack and method for manufacturing same Download PDFInfo
- Publication number
- CN110600666B CN110600666B CN201910898831.8A CN201910898831A CN110600666B CN 110600666 B CN110600666 B CN 110600666B CN 201910898831 A CN201910898831 A CN 201910898831A CN 110600666 B CN110600666 B CN 110600666B
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- battery module
- battery
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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
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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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
Abstract
The present disclosure provides a battery pack and a method of manufacturing the same. The battery pack includes: the battery module comprises at least two battery modules, wherein the types of the battery modules of the two adjacent battery modules are different from each other, the positive terminal and the negative terminal of each battery module are respectively provided with a symbol associated with the corresponding battery module type, and the at least two battery modules are arranged according to a preset sequence; and the electric connector is arranged between two adjacent battery modules and is used for electrically connecting two terminals with the same sign and opposite polarities on the two adjacent battery modules. The battery pack can effectively avoid the short circuit condition between adjacent battery modules in the battery pack.
Description
Technical Field
The present disclosure relates to the field of batteries, and more particularly, to a battery pack and a method of manufacturing the same.
Background
Currently, a plurality of battery modules are provided in a battery pack. Between two adjacent battery modules, the positive electrode of one battery module is electrically connected with the negative electrode of the other battery module, so that the series connection of the battery modules is realized, and the battery pack can provide larger working voltage.
Disclosure of Invention
The inventors have noted that the battery pack includes a plurality of battery modules therein, and that a worker may easily make a connection error when connecting the battery modules in series, thereby causing a short circuit condition to occur.
For this reason, the present disclosure provides a solution capable of effectively avoiding the occurrence of short circuits of each battery module in the battery pack during the series connection.
According to a first aspect of embodiments of the present disclosure, there is provided a battery pack including: the battery module comprises at least two battery modules, wherein the types of the battery modules of the two adjacent battery modules are different from each other, the positive terminal and the negative terminal of each battery module are respectively provided with a symbol associated with the corresponding battery module type, and the at least two battery modules are arranged according to a preset sequence; and the electric connector is arranged between two adjacent battery modules and is used for electrically connecting two terminals with the same sign and opposite polarities on the two adjacent battery modules.
In some embodiments, in the at least two battery modules, a positive terminal that is not electrically connected to a negative terminal of an adjacent battery module is taken as a positive terminal of the battery pack, and a negative terminal that is not electrically connected to a positive terminal of an adjacent battery module is taken as a negative terminal of the battery pack.
In some embodiments, the positive and negative terminals of each battery module are located on either side of each battery module.
In some embodiments, the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type; in the case that the first battery module belongs to the first battery module type, a first symbol is arranged on a positive terminal of the first battery module, and a second symbol is arranged on a negative terminal of the first battery module; in the case that the second battery module belongs to the second battery module type, a second symbol is arranged on the positive electrode terminal and the negative electrode terminal of the second battery module; in the case that the third battery module belongs to the third battery module type, a second symbol is arranged on the positive terminal of the third battery module, and a first symbol is arranged on the negative terminal of the third battery module; in the case that the fourth battery module is of the fourth battery module type, the positive terminal and the negative terminal of the fourth battery module are provided with first symbols.
In some embodiments, the predetermined sequence includes at least one of the following set conditions: if the battery pack comprises a first battery module, the second battery module is arranged adjacent to the first battery module in a preset direction; if the battery pack comprises a second battery module, the third battery module is arranged adjacent to the second battery module in the preset direction; if the battery pack comprises a third battery module, the fourth battery module is arranged adjacent to the third battery module in the preset direction; and if the battery pack comprises a fourth battery module, arranging the first battery module and the fourth battery module adjacently in the preset direction.
In some embodiments, in two adjacent battery modules, the positive terminal of one battery module is on the same side as the negative terminal of the other battery module, and the negative terminal of the one battery module is on the same side as the positive terminal of the other battery module.
In some embodiments, the positive and negative terminals of each battery module are located on the same side of each battery module, respectively.
In some embodiments, the battery module types include a fifth battery module type and a sixth battery module type; in the case that the fifth battery module belongs to a fifth battery module type, a first symbol is arranged on a negative terminal of the fifth battery module, and a second symbol is arranged on a positive terminal of the fifth battery module; in the case that the sixth battery module is of the sixth battery module type, a second symbol is provided on the negative terminal of the sixth battery module, and a first symbol is provided on the positive terminal of the sixth battery module.
In some embodiments, the predetermined sequence comprises: the sixth battery module is disposed adjacent to the fifth battery module.
In some embodiments, in two adjacent battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module.
According to a second aspect of embodiments of the present disclosure, there is provided a method of manufacturing a battery pack, including: providing at least two battery modules, wherein the types of the battery modules of the two adjacent battery modules are different from each other, the positive terminal and the negative terminal of each battery module are respectively provided with a symbol associated with the corresponding battery module type, and the at least two battery modules are arranged according to a preset sequence; two terminals having the same sign and opposite polarities on two adjacent battery modules are electrically connected.
In some embodiments, the positive terminal and the negative terminal of each battery module are respectively positioned at two sides of each battery module; the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type; in the case that the first battery module belongs to the first battery module type, a first symbol is arranged on a positive terminal of the first battery module, and a second symbol is arranged on a negative terminal of the first battery module; in the case that the second battery module belongs to the second battery module type, a second symbol is arranged on the positive electrode terminal and the negative electrode terminal of the second battery module; in the case that the third battery module belongs to the third battery module type, a second symbol is arranged on the positive terminal of the third battery module, and a first symbol is arranged on the negative terminal of the third battery module; in the case that the fourth battery module is of the fourth battery module type, the positive terminal and the negative terminal of the fourth battery module are provided with first symbols.
In some embodiments, the predetermined sequence includes at least one of the following set conditions: if the battery pack comprises a first battery module, the second battery module is arranged adjacent to the first battery module; if the battery pack comprises a second battery module, the third battery module is arranged adjacent to the second battery module; if the battery pack comprises a third battery module, the fourth battery module is arranged adjacent to the third battery module; if the battery pack comprises a fourth battery module, the first battery module and the fourth battery module are adjacently arranged; in two adjacent battery modules, the positive electrode terminal of one battery module and the negative electrode terminal of the other battery module are positioned on the same side, and the negative electrode terminal of the one battery module and the positive electrode terminal of the other battery module are positioned on the same side.
In some embodiments, the positive terminal and the negative terminal of each battery module are respectively located on the same side of each battery module; the battery module types include a fifth battery module type and a sixth battery module type; in the case that the fifth battery module belongs to a fifth battery module type, a first symbol is arranged on a negative terminal of the fifth battery module, and a second symbol is arranged on a positive terminal of the fifth battery module; in the case that the sixth battery module is of the sixth battery module type, a second symbol is provided on the negative terminal of the sixth battery module, and a first symbol is provided on the positive terminal of the sixth battery module.
In some embodiments, the predetermined sequence comprises: disposing the sixth battery module adjacent to the fifth battery module; in adjacent two battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module.
Other features of the present disclosure and its advantages will become apparent from the following detailed description of exemplary embodiments of the disclosure, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present disclosure, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic structural view of a battery pack according to an embodiment of the present disclosure;
fig. 2 is a schematic structural view of a battery pack according to another embodiment of the present disclosure;
fig. 3 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure;
fig. 4 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure;
fig. 5 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure;
fig. 6 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure;
fig. 7 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure;
fig. 8 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure;
fig. 9 is a flowchart illustrating a method of manufacturing a battery pack according to an embodiment of the present disclosure.
Detailed Description
The following description of the technical solutions in the embodiments of the present disclosure will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art without inventive effort, based on the embodiments in this disclosure are intended to be within the scope of this disclosure.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless it is specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Fig. 1 is a schematic structural view of a battery pack according to an embodiment of the present disclosure. As shown in fig. 1, at least two battery modules are included in the battery pack.
In the embodiment shown in fig. 1, the positive and negative terminals of each battery module are located on both sides of each battery module, respectively.
Here, the battery module types of two adjacent battery modules are different from each other, and the positive electrode terminal and the negative electrode terminal of each battery module are respectively provided with symbols associated with the corresponding battery module types. The battery modules in the battery pack are arranged in a predetermined order.
The battery pack further includes an electrical connector disposed between two adjacent battery modules for electrically connecting two terminals of the same sign and opposite polarity on the two adjacent battery modules.
In some embodiments, as shown in fig. 1, the battery module 11 is of a first battery module type, i.e., AB type. The positive electrode terminal of the battery module 11 is provided with a first symbol a, and the negative electrode terminal of the battery module 11 is provided with a second symbol B.
Battery module 12 is of a second battery module type, namely BB type. A second symbol B is provided on the positive terminal of the battery module 12, and a second symbol B is provided on the negative terminal of the battery module 12.
The battery module 13 is of a third battery module type, i.e., BA type. The positive terminal of the battery module 13 is provided with a second symbol B, and the negative terminal of the battery module 13 is provided with a first symbol a.
The battery module 14 is of the fourth battery module type, AA-type. The positive terminal of the battery module 14 is provided with a first symbol a, and the negative terminal of the battery module 14 is provided with a first symbol a.
The battery module 15 is of a first battery module type, AB type, which is the same type as the battery module 11. Battery module 16 is of a second battery module type, BB type, which is the same type as battery module 12.
In some embodiments, in two adjacent battery modules, the positive terminal of one battery module is on the same side as the negative terminal of the other battery module, and the negative terminal of one battery module is on the same side as the positive terminal of the other battery module. Thereby facilitating electrical connection between the corresponding terminals of the neighboring battery modules.
For example, as shown in fig. 1, the negative electrode of the battery module 11 and the positive electrode of the battery module 12 are positioned on the same side and electrically connected by an electrical connector 101. The negative electrode of the battery module 12 and the positive electrode of the battery module 13 are positioned on the same side and electrically connected by an electrical connector 102. The negative electrode of the battery module 13 and the positive electrode of the battery module 14 are positioned on the same side and electrically connected by an electrical connector 103. The negative electrode of the battery module 14 and the positive electrode of the battery module 15 are positioned on the same side and electrically connected by an electrical connector 104. The negative electrode of the battery module 15 and the positive electrode of the battery module 16 are positioned on the same side and electrically connected by an electrical connector 105.
The positive electrode terminal of the battery module 11, which is not electrically connected to the negative electrode terminal of the adjacent battery module, is used as the positive electrode terminal of the battery pack, and the negative electrode terminal of the battery module 16, which is not electrically connected to the positive electrode terminal of the adjacent battery module, is used as the negative electrode terminal of the battery pack.
Here, in the case where the battery modules have AB type, BB type, BA type, and AA type, the battery modules are arranged in the order of [ AB type, BB type, BA type, AA type ], and the AB type battery module is taken as the next battery module adjacent to the AA type battery module, and so on. For example, as shown in fig. 1, in the case where the first battery module 11 is of the AB type, the BB type battery module 12 is disposed adjacent to the battery module 11 in a predetermined direction in a predetermined order (for example, the battery module 12 is disposed on the right side of the battery module 11). Next, the BA-type battery module 13 is disposed adjacent to the battery module 12 in a predetermined direction (e.g., the battery module 13 is disposed on the right side of the battery module 12), and the AA-type battery module 14 is disposed adjacent to the battery module 13 in a predetermined direction (e.g., the battery module 14 is disposed on the right side of the battery module 13). Next, still in the above-described order, the AB-type battery module 15 is selected to be disposed adjacent to the battery module 14 in a predetermined direction (for example, the battery module 15 is disposed on the right side of the battery module 14), and the AB-type battery module 16 is selected to be disposed adjacent to the battery module 15 in a predetermined direction (for example, the battery module 16 is disposed on the right side of the battery module 15), and so on, whereby a predetermined number of battery modules are disposed in the battery pack.
For convenience of explanation, 6 battery modules are included in the battery pack shown in fig. 1. It should be noted that the battery pack may include four or more battery modules, or only two battery modules or three battery modules may be provided in one battery pack as needed. In this case, the battery modules are still arranged in the above-described order.
Fig. 2 is a schematic structural view of a battery pack according to another embodiment of the present disclosure.
Fig. 2 is different from fig. 1 in that in the embodiment shown in fig. 2, two battery modules are provided in the battery pack. In the case where the first battery module 11 is of the AB type, the BB type battery module 12 is disposed adjacent to the battery module 11 in a predetermined direction in a predetermined order (for example, the battery module 12 is disposed on the right side of the battery module 11), and the negative electrode of the battery module 11 is electrically connected to the positive electrode of the battery module 12 through the electrical connector 101.
Fig. 3 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure.
Fig. 3 is different from fig. 2 in that in the embodiment shown in fig. 3, three battery modules are provided in the battery pack. In the case where the first battery module 11 is of the AB type, the BB type battery module 12 is disposed adjacent to the battery module 11 in a predetermined direction in a predetermined order (for example, the battery module 12 is disposed on the right side of the battery module 11), and the negative electrode of the battery module 11 is electrically connected to the positive electrode of the battery module 12 through the electrical connector 101. Next, the BA-type battery module 13 is disposed adjacent to the battery module 12 in a predetermined direction (e.g., the battery module 13 is disposed on the right side of the battery module 12), and the negative electrode of the battery module 12 is electrically connected to the positive electrode of the battery module 13 through the electrical connector 102.
Here, in the embodiments of fig. 1 to 3, the AB type battery module is taken as the first battery module in the battery pack, and then the corresponding battery modules are disposed in a predetermined order after the AB type battery module. In some embodiments, the BB type battery module, the BA type battery module, or the AA type battery module may be used as the first battery module in the battery pack. After the first battery module is determined, the different types of battery modules are sequentially arranged in the above order.
Fig. 4 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure.
Fig. 4 is different from fig. 1 in that in the embodiment shown in fig. 4, the first battery module in the battery pack is a BB type battery module. For ease of illustration, 6 battery modules are shown in fig. 4.
In the case where the first battery module 41 is of the BB type, the BA-type battery module 42 is disposed adjacent to the battery module 41 in a predetermined direction in a predetermined order (for example, the battery module 42 is disposed on the right side of the battery module 41), and the negative electrode of the battery module 41 is electrically connected to the positive electrode of the battery module 42 through the electrical connector 401. Next, the AA-size battery module 43 is disposed adjacent to the battery module 42 in a predetermined direction (e.g., the battery module 43 is disposed on the right side of the battery module 42), and the negative electrode of the battery module 42 is electrically connected to the positive electrode of the battery module 43 through the electrical connector 402. The AB-type battery module 44 is disposed adjacent to the battery module 43 in a predetermined direction (for example, the battery module 44 is disposed on the right side of the battery module 43), and the negative electrode of the battery module 43 is electrically connected to the positive electrode of the battery module 44 through the electrical connection member 403. The BB type battery module 45 is disposed adjacent to the battery module 44 in a predetermined direction (e.g., the battery module 45 is disposed on the right side of the battery module 44), and the negative electrode of the battery module 44 is electrically connected to the positive electrode of the battery module 45 through the electrical connector 404. The BA-type battery module 46 is disposed adjacent to the battery module 45 in a predetermined direction (e.g., the battery module 46 is disposed on the right side of the battery module 45), and the negative electrode of the battery module 45 is electrically connected to the positive electrode of the battery module 46 through the electrical connector 405.
Fig. 5 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure.
Fig. 5 is different from fig. 1 in that in the embodiment shown in fig. 5, the first battery module in the battery pack is a BA-type battery module. For ease of illustration, 6 battery modules are shown in fig. 5.
In the case where the first battery module 51 is of the BA type, AA-sized battery modules 52 are disposed adjacent to the battery modules 51 in a predetermined direction in a predetermined order (for example, the battery modules 52 are disposed on the right side of the battery modules 51), and the negative electrode of the battery modules 51 and the positive electrode of the battery modules 52 are electrically connected by the electrical connection members 501. Next, the AB-type battery module 53 is disposed adjacent to the battery module 52 in a predetermined direction (for example, the battery module 53 is disposed on the right side of the battery module 52), and the negative electrode of the battery module 52 is electrically connected to the positive electrode of the battery module 53 through the electrical connector 502. The BB type battery module 54 is disposed adjacent to the battery module 53 in a predetermined direction (for example, the battery module 54 is disposed on the right side of the battery module 53), and the negative electrode of the battery module 53 is electrically connected to the positive electrode of the battery module 54 through the electrical connection member 503. The BA-type battery module 55 is disposed adjacent to the battery module 54 in a predetermined direction (e.g., the battery module 55 is disposed on the right side of the battery module 54), and the negative electrode of the battery module 54 is electrically connected to the positive electrode of the battery module 55 through the electrical connection 504. The BB type battery module 56 is disposed adjacent to the battery module 55 in a predetermined direction (for example, the battery module 56 is disposed on the right side of the battery module 55), and the negative electrode of the battery module 55 is electrically connected to the positive electrode of the battery module 56 through the electrical connector 505.
Fig. 6 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure.
Fig. 6 is different from fig. 1 in that in the embodiment shown in fig. 6, the first battery module in the battery pack is an AA-type battery module. For ease of illustration, 6 battery modules are shown in fig. 6.
In the case where the first battery module 61 is of the AA type, the AB type battery module 62 is disposed adjacent to the battery module 61 in a predetermined direction (for example, the battery module 62 is disposed on the right side of the battery module 61) in a predetermined order, and the negative electrode of the battery module 61 is electrically connected to the positive electrode of the battery module 62 through the electrical connector 601. Next, the BB type battery module 63 is disposed adjacent to the battery module 62 in a predetermined direction (for example, the battery module 63 is disposed on the right side of the battery module 62), and the negative electrode of the battery module 62 is electrically connected to the positive electrode of the battery module 63 through the electrical connection 602. The BA-type battery module 64 is disposed adjacent to the battery module 63 in a predetermined direction (e.g., the battery module 64 is disposed on the right side of the battery module 63), and the negative electrode of the battery module 63 is electrically connected to the positive electrode of the battery module 64 through the electrical connector 603. The AA-size battery module 65 is disposed adjacent to the battery module 64 in a predetermined direction (e.g., the battery module 65 is disposed on the right side of the battery module 64), and the negative electrode of the battery module 64 is electrically connected to the positive electrode of the battery module 65 through the electrical connection 604. The AB-type battery module 66 is disposed adjacent to the battery module 65 in a predetermined direction (for example, the battery module 66 is disposed on the right side of the battery module 65), and the negative electrode of the battery module 65 is electrically connected to the positive electrode of the battery module 66 through the electrical connector 605.
Fig. 7 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure. Fig. 7 is different from fig. 1 in that in the embodiment shown in fig. 7, the positive and negative terminals of each battery module are located on the same side of each battery module, respectively.
As shown in fig. 7, the battery module 71 is of a fifth battery module type, i.e., AB type. The positive terminal of the battery module 71 is provided with a first symbol a, and the negative terminal of the battery module 71 is provided with a second symbol B.
The battery module 72 is of a sixth battery module type, i.e., BA type. The positive terminal of the battery module 72 is provided with a second symbol B, and the negative terminal of the battery module 72 is provided with a second symbol B.
The battery modules 73, 75 are of a fifth battery module type, AB type, which is the same type as the battery module 71. The battery module 74 is of a sixth battery module type, BA-type, which is the same type as the battery module 72.
In some embodiments, as shown in fig. 7, in two adjacent battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module. Thereby facilitating electrical connection between the corresponding terminals of the neighboring battery modules.
For example, as shown in fig. 7, the positive electrode terminal of the battery module 71 and the negative electrode terminal of the battery module 72 are adjacent to each other and electrically connected by an electrical connector 701. The positive terminal of the battery module 72 and the negative terminal of the battery module 73 are adjacent to each other and electrically connected by an electrical connection 702. The positive terminal of the battery module 73 is adjacent to the negative terminal of the battery module 74 and is electrically connected thereto by an electrical connection 703. The positive terminal of the battery module 74 and the negative terminal of the battery module 75 are adjacent and electrically connected by an electrical connection 704.
The negative electrode terminal of the battery module 71 that is not electrically connected to the positive electrode terminal of the adjacent battery module is referred to as the negative electrode terminal of the battery pack, and the positive electrode terminal of the battery module 75 that is not electrically connected to the negative electrode terminal of the adjacent battery module is referred to as the positive electrode terminal of the battery pack.
Here, in the case where the battery modules have the AB type and BA type, the battery modules are arranged in the order of [ AB type, BA type ], and the AB type battery module is taken as the next battery module adjacent to the BA type battery module, and so on. For example, as shown in fig. 7, in the case where the first battery module 71 is of the AB type, the BA-type battery module 72 is disposed adjacent to the battery module 71 in a predetermined direction in a predetermined order (for example, the battery module 72 is disposed on the right side of the battery module 71). Next, the AB-type battery module 73 is disposed adjacent to the battery module 72 in a predetermined direction (e.g., the battery module 73 is disposed on the right side of the battery module 72), and the BA-type battery module 74 is disposed adjacent to the battery module 73 in a predetermined direction (e.g., the battery module 74 is disposed on the right side of the battery module 73). Next, still in the above-described order, the AB-type battery module 75 is selected to be disposed adjacent to the battery module 74 in a predetermined direction (for example, the battery module 75 is disposed on the right side of the battery module 74), and so on, whereby a predetermined number of battery modules are disposed in the battery pack.
For convenience of explanation, 5 battery modules are included in the battery pack shown in fig. 7. It should be noted that the battery pack may include two or more battery modules, and each battery module is still arranged in a corresponding order.
Here, in the embodiment of fig. 7, the AB type battery module is taken as the first battery module in the battery pack, and then the corresponding battery modules are disposed in a predetermined order after the AB type battery module. In some embodiments, the BA-type battery module may be used as the first battery module in the battery pack. After the first battery module is determined, the different types of battery modules are sequentially arranged in the above order.
Fig. 8 is a schematic structural view of a battery pack according to still another embodiment of the present disclosure.
Fig. 8 is different from fig. 8 in that in the embodiment shown in fig. 8, the first battery module in the battery pack is a BA-type battery module. For ease of illustration, 5 battery modules are shown in fig. 8.
In the case where the first battery module 81 is of the BA type, the AB type battery module 82 is disposed adjacent to the battery module 81 in a predetermined direction in a predetermined order (for example, the battery module 82 is disposed on the right side of the battery module 81), and the positive electrode of the battery module 81 is electrically connected to the negative electrode of the battery module 82 through the electrical connection member 801. Next, the BA-type battery module 83 is disposed adjacent to the battery module 82 in a predetermined direction (e.g., the battery module 83 is disposed on the right side of the battery module 82), and the positive electrode of the battery module 82 is electrically connected to the negative electrode of the battery module 83 via the electrical connection 802. The AB type battery module 84 is disposed adjacent to the battery module 83 in a predetermined direction (for example, the battery module 84 is disposed on the right side of the battery module 83), and the positive electrode of the battery module 83 is electrically connected to the negative electrode of the battery module 84 through the electrical connection 803. The BA-type battery module 85 is disposed adjacent to the battery module 84 in a predetermined direction (e.g., the battery module 85 is disposed on the right side of the battery module 84), and the positive electrode of the battery module 84 is electrically connected to the negative electrode of the battery module 85 via the electrical connector 804.
Fig. 9 is a flowchart illustrating a method of manufacturing a battery pack according to an embodiment of the present disclosure.
In step 901, at least two battery modules are provided, wherein the battery module types of two adjacent battery modules are different from each other, the positive terminal and the negative terminal of each battery module are respectively provided with symbols associated with the corresponding battery module types, and the at least two battery modules are arranged in a predetermined order.
In step 902, two terminals of the same sign and opposite polarity on adjacent battery modules are electrically connected.
In some embodiments, in at least two battery modules, a positive terminal that is not electrically connected to a negative terminal of an adjacent battery module is taken as a positive terminal of a battery pack, and a negative terminal that is not electrically connected to a positive terminal of an adjacent battery module is taken as a negative terminal of the battery pack.
In some embodiments, as shown in fig. 1-6, the positive and negative terminals of each battery module are located on either side of each battery module, respectively.
As shown in fig. 1 to 6, in adjacent two battery modules, the positive electrode terminal of one battery module is located on the same side as the negative electrode terminal of the other battery module, and the negative electrode terminal of one battery module is located on the same side as the positive electrode terminal of the other battery module.
In some embodiments, the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type.
In the case that the first battery module is of the first battery module type, a first symbol a is provided on the positive terminal of the first battery module, and a second symbol B, i.e., AB type, is provided on the negative terminal of the first battery module. In the case that the second battery module is of the second battery module type, a second symbol B, i.e., BB type, is provided on both the positive terminal and the negative terminal of the second battery module. In the case that the third battery module is of the third battery module type, a second symbol B is provided on the positive terminal of the third battery module, and a first symbol a, i.e., a BA type, is provided on the negative terminal of the third battery module. In the case that the fourth battery module is of the fourth battery module type, the positive and negative terminals of the fourth battery module are provided with a first symbol a, i.e., AA size.
In some embodiments, as shown in fig. 1-6, if a first battery module is included in the battery pack, a second battery module is disposed adjacent to the first battery module. If the battery pack comprises a second battery module, the third battery module is arranged adjacent to the second battery module. If the battery pack comprises a third battery module, the fourth battery module is arranged adjacent to the third battery module. If the battery pack comprises a fourth battery module, the first battery module and the fourth battery module are adjacently arranged. I.e. in a sequential loop of [ AB type, BB type, BA type, AA type ].
In some embodiments, as shown in fig. 1-6, the positive and negative terminals of each battery module are located on the same side of each battery module, respectively.
In some embodiments, the battery module types include a fifth battery module type and a sixth battery module type.
In the case that the fifth battery module is of the fifth battery module type, a first symbol a is provided on the negative terminal of the fifth battery module, and a second symbol B, i.e., a BA type, is provided on the positive terminal of the fifth battery module. In the case that the sixth battery module is of the sixth battery module type, the negative terminal of the sixth battery module is provided with the second symbol B, and the positive terminal of the sixth battery module is provided with the first symbol a, i.e., the AB type.
As shown in fig. 7-8, the sixth battery module is disposed adjacent to the fifth battery module. Wherein, in two adjacent battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module. I.e. set up in a cyclic manner in the order of [ AB type, BA type ].
According to the method, the terminals of the battery modules of different types are correspondingly identified, the battery modules of different types are arranged according to the preset sequence, and two terminals with the same symbols and opposite polarities in two adjacent battery modules are electrically connected. Therefore, the occurrence of short circuit in the series connection process of the battery modules in the battery pack can be effectively avoided, and the safety and the assembly efficiency of the battery module connection are enhanced.
The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. A battery pack, comprising:
the battery module comprises at least two battery modules, wherein the types of the battery modules of the two adjacent battery modules are different from each other, the positive terminal and the negative terminal of each battery module are respectively provided with a symbol associated with the corresponding battery module type, and the at least two battery modules are arranged according to a preset sequence;
the electric connecting piece is arranged between two adjacent battery modules and is used for electrically connecting two terminals which are provided with the same symbols and opposite in polarity on the two adjacent battery modules;
wherein, in the case that the positive electrode terminal and the negative electrode terminal of each battery module are respectively located at the same side of each battery module, the battery module types include a fifth battery module type and a sixth battery module type, a first symbol is disposed on the negative electrode terminal of the fifth battery module in the case that the fifth battery module belongs to the fifth battery module type, a second symbol is disposed on the positive electrode terminal of the fifth battery module, a second symbol is disposed on the negative electrode terminal of the sixth battery module in the case that the sixth battery module belongs to the sixth battery module type, a first symbol is disposed on the positive electrode terminal of the sixth battery module, and the predetermined sequence includes disposing the sixth battery module adjacent to the fifth battery module.
2. The battery pack according to claim 1, wherein:
in the at least two battery modules, a positive electrode terminal that is not electrically connected to a negative electrode terminal of an adjacent battery module is used as a positive electrode terminal of the battery pack, and a negative electrode terminal that is not electrically connected to a positive electrode terminal of an adjacent battery module is used as a negative electrode terminal of the battery pack.
3. The battery pack according to claim 1 or 2, wherein:
the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type in a case where the positive and negative terminals of each battery module are located at both sides of each battery module, respectively;
in the case that the first battery module belongs to the first battery module type, a first symbol is arranged on a positive terminal of the first battery module, and a second symbol is arranged on a negative terminal of the first battery module;
in the case that the second battery module belongs to the second battery module type, a second symbol is arranged on the positive electrode terminal and the negative electrode terminal of the second battery module;
in the case that the third battery module belongs to the third battery module type, a second symbol is arranged on the positive terminal of the third battery module, and a first symbol is arranged on the negative terminal of the third battery module;
in the case that the fourth battery module is of the fourth battery module type, the positive terminal and the negative terminal of the fourth battery module are provided with first symbols.
4. A battery pack according to claim 3, wherein the predetermined sequence includes at least one of the following setting conditions:
if the battery pack comprises a first battery module, the second battery module is arranged adjacent to the first battery module in a preset direction;
if the battery pack comprises a second battery module, the third battery module is arranged adjacent to the second battery module in the preset direction;
if the battery pack comprises a third battery module, the fourth battery module is arranged adjacent to the third battery module in the preset direction;
and if the battery pack comprises a fourth battery module, arranging the first battery module and the fourth battery module adjacently in the preset direction.
5. The battery pack according to claim 4, wherein,
in the case that the positive electrode terminal and the negative electrode terminal of each battery module are respectively located at both sides of each battery module, in the adjacent two battery modules, the positive electrode terminal of one battery module is located at the same side as the negative electrode terminal of the other battery module, and the negative electrode terminal of the one battery module is located at the same side as the positive electrode terminal of the other battery module.
6. The battery pack according to claim 1, wherein,
in case that the positive and negative terminals of each battery module are located at the same side of each battery module, respectively, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module in the adjacent two battery modules.
7. A method of manufacturing a battery pack, comprising:
providing at least two battery modules, wherein the types of the battery modules of the two adjacent battery modules are different from each other, the positive terminal and the negative terminal of each battery module are respectively provided with a symbol associated with the corresponding battery module type, and the at least two battery modules are arranged according to a preset sequence;
electrically connecting two terminals with the same sign and opposite polarities on two adjacent battery modules;
wherein, in the case that the positive electrode terminal and the negative electrode terminal of each battery module are respectively located at the same side of each battery module, the battery module type includes a fifth battery module type and a sixth battery module type;
in the case that the fifth battery module belongs to a fifth battery module type, a first symbol is arranged on a negative terminal of the fifth battery module, and a second symbol is arranged on a positive terminal of the fifth battery module;
in the case that the sixth battery module belongs to a sixth battery module type, a second symbol is arranged on the negative terminal of the sixth battery module, and a first symbol is arranged on the positive terminal of the sixth battery module;
the predetermined sequence includes disposing the sixth battery module adjacent to the fifth battery module.
8. The method of claim 7, wherein:
the positive electrode terminal and the negative electrode terminal of each battery module are respectively positioned at two sides of each battery module;
the battery module types include a first battery module type, a second battery module type, a third battery module type, and a fourth battery module type;
in the case that the first battery module belongs to the first battery module type, a first symbol is arranged on a positive terminal of the first battery module, and a second symbol is arranged on a negative terminal of the first battery module;
in the case that the second battery module belongs to the second battery module type, a second symbol is arranged on the positive electrode terminal and the negative electrode terminal of the second battery module;
in the case that the third battery module belongs to the third battery module type, a second symbol is arranged on the positive terminal of the third battery module, and a first symbol is arranged on the negative terminal of the third battery module;
in the case that the fourth battery module is of the fourth battery module type, the positive terminal and the negative terminal of the fourth battery module are provided with first symbols.
9. The method of claim 8, wherein the predetermined order includes at least one of the following setup conditions:
if the battery pack comprises a first battery module, the second battery module is arranged adjacent to the first battery module in a preset direction;
if the battery pack comprises a second battery module, the third battery module is arranged adjacent to the second battery module in the preset direction;
if the battery pack comprises a third battery module, the fourth battery module is arranged adjacent to the third battery module in the preset direction;
if the battery pack comprises a fourth battery module, the first battery module and the fourth battery module are adjacently arranged in the preset direction;
wherein, in two adjacent battery modules, the positive electrode terminal of one battery module and the negative electrode terminal of the other battery module are positioned on the same side, and the negative electrode terminal of one battery module and the positive electrode terminal of the other battery module are positioned on the same side.
10. The method of claim 7, wherein the predetermined sequence comprises, with the positive and negative terminals of each battery module being located on the same side of each battery module, respectively:
in adjacent two battery modules, the positive terminal of one battery module is adjacent to the negative terminal of the other battery module.
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