Battery and battery replacement system

Abstract

The embodiment of the invention discloses a battery and a battery replacement system, the battery comprises a shell, a battery cell assembly and a positioning device, the battery cell assembly and the positioning device are arranged in the shell, a battery cell of the battery cell assembly is packaged in an inner shell, the positioning device is arranged outside the inner shell, and a positioning circuit is arranged in a protective shell; therefore, the positioning circuit in the positioning device can be better protected, the mutual influence and interference between the positioning device and the battery cell assembly can be reduced, the stable work of the positioning device can be ensured, and the management and theft prevention of the battery can be realized.

Description

Technical Field

[0001] The present invention relates to the field of battery technology, and in particular to a battery and a battery replacement system. Background Art

[0002] With the development of science and technology and the increasing emphasis on resource and environmental protection, electric vehicles have gradually become an important means of transportation for people's daily travel and are closely related to our lives. In order to solve the problem of not being able to use electric vehicles for travel during charging, electric vehicles that can be replaced by users themselves and related shared battery replacement equipment such as battery replacement cabinets are becoming more and more popular. In the battery replacement system, the service provider of the battery replacement system needs to manage a large number of batteries and the mobility of batteries is large, which poses a great challenge to battery management. Summary of the invention

[0003] In view of this, an object of the present invention is to provide a battery and a battery replacement system that is conducive to achieving good management of the battery.

[0004] In a first aspect, an embodiment of the present invention provides a battery, comprising an outer shell, a battery cell assembly and a positioning device; the battery cell assembly is arranged in the outer shell, the battery cell assembly comprises an inner shell and a battery cell, and the battery cell is arranged in the inner shell; the positioning device is arranged in the outer shell and is located outside the inner shell, the positioning device comprises a protective shell and a positioning circuit, and the positioning circuit is arranged in the protective shell.

[0005] In some embodiments, the housing has a first accommodating cavity and a second accommodating cavity, the battery cell assembly is disposed in the first accommodating cavity, the positioning device is disposed in the second accommodating cavity, and a first partition is disposed between the first accommodating cavity and the second accommodating cavity.

[0006] In some embodiments, the shell further has a third accommodating cavity, a second partition is provided between the third accommodating cavity and the first accommodating cavity, and the third accommodating cavity is spaced apart from the first accommodating cavity; the battery further includes a radio frequency identification tag, and the radio frequency identification tag is arranged in the third accommodating cavity.

[0007] In some embodiments, the battery further includes a radio frequency identification tag disposed in the housing and spaced apart from the battery cell assembly.

[0008] In some embodiments, the positioning device further includes a positioning power supply, which is disposed in the protective shell and electrically connected to the positioning circuit; and / or

[0009] The positioning device has an electric energy transmission interface, the electric energy transmission interface is electrically connected to the positioning circuit, and the electric energy transmission interface is electrically connected to the battery core assembly.

[0010] In some embodiments, the battery cell assembly also includes a battery management board, which is arranged in the inner shell. The battery management board is provided with an information acquisition circuit and a communication circuit. The battery management board has a plurality of spaced-apart connecting wings, and the positions of the connecting wings correspond to the pole ears of the battery cell. At least part of the connecting wings are electrically connected to the corresponding pole ears.

[0011] In some embodiments, the battery cell also has a plurality of support columns arranged at intervals, the positions of the support columns correspond to the connecting wings, and the connecting wings are arranged on the support columns; at least one of the connecting wings has a positioning hole, and at least one of the support columns has a positioning block corresponding to the positioning hole, and the positioning block is inserted into the corresponding positioning hole.

[0012] In some embodiments, the battery further includes a top electrical connector and a bottom electrical connector; the top electrical connector is disposed at the upper end of the battery and is electrically connected to the battery cell assembly; the bottom electrical connector is disposed at the lower end of the battery and is electrically connected to the battery cell assembly.

[0013] In some embodiments, there is a wire passing space between the inner shell and the outer shell, and the wire passing space extends from the wire outlet to the top electrical connector and the bottom electrical connector. The inner shell has a wire outlet, and the battery also includes a first connecting wire and a second connecting wire; one end of the first connecting wire is electrically connected to the battery cell assembly, and the other end passes through the inner shell from the wire outlet, passes through the wire passing space, and is electrically connected to the top electrical connector; one end of the second connecting wire is electrically connected to the battery cell assembly, and the other end passes through the inner shell from the wire outlet, passes through the wire passing space, and is electrically connected to the bottom electrical connector.

[0014] In some embodiments, the outer shell includes a first outer half shell and a second outer half shell connected to the first outer half shell, and the opening of the first outer half shell is arranged opposite to the opening of the second outer half shell; the inner shell includes a first inner half shell and a second inner half shell connected to the first inner half shell, and the opening of the first inner half shell is arranged opposite to the opening of the second inner half shell; wherein the opening direction of the first inner half shell is not parallel to the opening direction of the first outer half shell.

[0015] In a second aspect, an embodiment of the present invention further provides a battery replacement system, comprising a battery replacement device and at least one battery as described in the first aspect, wherein the battery replacement device has a plurality of battery compartments for accommodating batteries.

[0016] An embodiment of the present invention provides a battery and a battery replacement system, wherein the battery includes an outer shell, a battery cell assembly and a positioning device. The battery cell assembly and the positioning device are arranged in the outer shell, the battery cells of the battery cell assembly are encapsulated in an inner shell, the positioning device is arranged outside the inner shell and the positioning circuit is installed in a protective shell, thereby facilitating better protection of the positioning circuit in the positioning device, reducing mutual influence and interference between the positioning device and the battery cell assembly, ensuring that the positioning device can work stably, and thus facilitating battery management and theft prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0018] Figure 1 is a schematic diagram of a three-dimensional structure of a battery according to an embodiment of the present invention from one viewing angle;

[0019] Figure 2 is a schematic diagram of a three-dimensional structure of a battery according to an embodiment of the present invention from another viewing angle;

[0020] Figure 3 is a schematic diagram of the internal structure of a battery according to an embodiment of the present invention;

[0021] Figure 4 It is a schematic diagram of the installation of a battery cell assembly and a housing according to an embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of the exploded structure of a battery cell assembly according to an embodiment of the present invention;

[0023] Figure 6 is a schematic structural diagram of a battery management board according to an embodiment of the present invention;

[0024] Figure 7 is a schematic diagram of the connection between a battery management board and a battery cell according to an embodiment of the present invention;

[0025] Figure 8 It is a partial structural schematic diagram of the connection between a battery management board and a battery cell according to an embodiment of the present invention;

[0026] Fig. 9 It is an enlarged schematic diagram of point D of the connection diagram of the battery management board and the battery cell according to one embodiment of the present invention;

[0027] Fig.10 It is a schematic diagram of the connection between the battery cell assembly of a battery according to an embodiment of the present invention and the top connector and the bottom connector;

[0028] Fig.11 is a schematic diagram of the positions of a first accommodating cavity, a second accommodating cavity and a third accommodating cavity in a housing according to an embodiment of the present invention;

[0029] Fig.12 is a schematic diagram of the three-dimensional structure of a battery positioning device according to an embodiment of the present invention;

[0030] Fig.13 It is a schematic diagram of installing a battery positioning device in a housing according to an embodiment of the present invention;

[0031] Fig.14 is a schematic block diagram of the structure of a battery positioning device according to an embodiment of the present invention;

[0032] Fig.15 is a schematic diagram of installing a radio frequency identification tag of a battery in a housing according to an embodiment of the present invention;

[0033] Fig.16 It is a schematic diagram of a battery replacement system according to an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1-battery; 2-cord connector; 10-outer shell; 11-first outer half shell; 12-second outer half shell; 13-first accommodating chamber; 14-second accommodating chamber; 15-third accommodating chamber; 16-first partition; 17-second partition; 18-handle; 20-cell assembly; 21-inner shell; 211-first inner half shell; 212-second inner half shell; 213-outlet; 22-cell; 221-ear; 222-support column; 223-positioning block; 23-battery management board; 231-connecting wing; 232-positioning hole; 24-nickel sheet; 30-positioning device; 31-protective shell; 32-positioning circuit; 33-power transmission interface; 34-positioning power supply; 40-RFID tag; 50-top electrical connector; 60-bottom electrical connector; 70-first connecting line; 80-second connecting line; 90-battery replacement equipment; 91-battery compartment. DETAILED DESCRIPTION

[0036] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0037] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0038] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0040] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0041] Figure 1 and Figure 2 is a schematic diagram of the three-dimensional structure of a battery 1 according to an embodiment of the present invention, Figure 3 Schematic diagram of the internal structure of the battery 1 according to the embodiment of the present invention. Figures 1 to 3 The battery 1 of the embodiment of the present invention includes an outer shell 10 and a battery cell assembly 20 disposed in the outer shell 10. The outer shell 10 has a first accommodating cavity 13 capable of accommodating the battery cell assembly 20, and the battery cell assembly 20 is disposed in the first accommodating cavity 13. The battery cell assembly 20 includes an inner shell 21 and a battery cell 22 disposed in the inner shell 21. The battery cell 22 includes one or more battery 1 monomers arranged and connected in a predetermined manner to achieve energy conversion between electrical energy and chemical energy. By wrapping the inner shell 21 and the outer shell 10 in turn around the battery cell 22, it is beneficial to ensure the overall structural strength of the battery 1 and achieve good protection of the internal battery cell 22 and other components.

[0042] In some embodiments, reference Figure 1 and Figure 2The outer shell 10 may include a first outer half shell 11 and a second outer half shell 12. The first outer half shell 11 and the second outer half shell 12 respectively have openings on one side, and the opening of the first outer half shell 11 corresponds to the opening of the second outer half shell 12 in shape and size. By making the opening of the first outer half shell 11 and the opening of the second outer half shell 12 face each other, and then connecting the first outer half shell 11 and the second outer half shell 12, a relatively closed first accommodating cavity 13 can be formed to accommodate the battery cell assembly 20. The connection between the first outer half shell 11 and the second outer half shell 12 can be achieved by one or more of bayonet connection, screw connection, bonding or other connection methods. In order to facilitate the display of the positional relationship between the battery cell assembly 20 and the outer shell 10, Figure 3 and Figure 4 The first outer half shell 11 is hidden in the Figure 3 and Figure 4 The battery cell assembly 20 is installed in the housing 10, and the housing 10 may have a structure for limiting the battery cell assembly 20, so as to limit the position of the battery cell assembly 20 in the housing 10 and prevent the battery cell assembly 20 from shaking in the housing 10. Optionally, a handle 18 may be provided on the top of the housing 10 to facilitate carrying the battery 1. The handle 18 may be made in an integral manner with the first outer half shell 11 or the second outer half shell 12, or the handle 18 may be made separately from the first outer half shell 11 and the second outer half shell 12, and installed and fixed by snap connection, fastener connection or other means.

[0043] Figure 5 2 is a schematic diagram of the exploded structure of the battery cell assembly 20 of the battery 1 in some embodiments of the present invention. Figure 4 and Figure 5 In some embodiments, the inner shell 21 may include a first inner half shell 211 and a second inner half shell 212 connected to the first inner half shell 211. The first inner half shell 211 and the second inner half shell 212 each have an opening on one side, and the opening of the first inner half shell 211 corresponds to the opening of the second inner half shell 212 in shape and size. The opening of the first inner half shell 211 is arranged opposite to the opening of the second inner half shell 212. The first inner half shell 211 and the second inner half shell 212 form a relatively closed cavity to encapsulate the battery cell assembly 20. The opening direction of the first inner half shell 211 is not parallel to the opening direction of the first outer half shell 11, that is, the opening direction of the second inner half shell 212 is not parallel to the opening direction of the second outer half shell 12, so as to avoid the alignment of the joint gap of the inner shell 21 with the gap of the outer shell 10, thereby facilitating the waterproof and dustproof of the battery cell assembly 20. Wherein, the "opening direction" refers to the normal direction of the opening.

[0044] The battery cell assembly 20 may further include a battery management board 23, which is disposed in the inner shell 21 and disposed on one side of the battery cell 22. The battery management board 23 is electrically connected to the battery cell 22 to manage and control the operation of the battery cell 22. The battery management board 23 may include a printed circuit board (PCB), for example, a rigid circuit board, a flexible circuit board (FPC), or a structure formed by combining a rigid circuit board and a flexible circuit board.

[0045] In some embodiments, the battery management board 23 may be provided with an information collection circuit and a communication circuit. The information collection circuit is used to collect various relevant data when the battery cell assembly 20 is working, and is used to determine the state of the battery cell assembly 20. For example, the information collection circuit can collect data such as the voltage, charge and discharge current, temperature, and internal resistance of the battery cell 22. The communication circuit can be used to realize information interaction between the battery 1 and external devices, and / or between the battery cell assembly 20 and other components in the battery 1. For example, it can be used to realize functions such as the battery 1 sending its own power information to external devices, sending alarm information to the outside through the communication circuit when a fault occurs, and receiving control instructions from external devices. For example, in an application scenario, the communication circuit can be connected to a server for communication, and the communication circuit can upload status information related to the battery 1 (such as the power status of the battery cell collected by the information collection circuit, the operating temperature, etc.) to the server, and can receive control instructions from the server to realize the control of the battery 1. For another example, in another application scenario, the communication circuit can be connected to the control system of an electrical device (e.g., an electric two-wheeled vehicle) using the battery 1, and the communication circuit can send status information related to the battery 1 (e.g., the power status of the battery cell, the operating temperature, etc. collected by the information collection circuit) to the control system of the electrical device. The battery 1 of this embodiment integrates the information collection circuit and the communication circuit on the same battery management board 23, which is conducive to the rational use of the space in the inner shell 21, and is conducive to saving materials and reducing costs. In addition, other circuits related to realizing the functions of the battery 1 can also be set on the battery management board 23, such as a fault diagnosis circuit, a protection circuit, etc.

[0046] Figure 6 is a schematic diagram of the structure of the battery management board 23 of the battery cell assembly 20, Figure 7 is a schematic diagram of the connection between the battery management board 23 and the battery cell 22, Figure 8 yes Figure 5 The local enlarged schematic diagram of point C in the figure is as follows: Fig. 9 yes Figure 7 The enlarged schematic diagram of the D part in FIG. Figures 5 to 9In some embodiments, the battery management board 23 has a plurality of connection wings 231 arranged at intervals, and the positions of the connection wings 231 correspond to the pole ears 221 of the battery cell 22. At least a portion of the connection wings 231 of the plurality of connection wings 231 has an electrical connection structure, which may be a copper coating, a conductive through hole or other conductive structure on a printed circuit board. These connection wings 231 with corresponding electrical connection structures are electrically connected to the relevant circuits (such as information acquisition circuits) on the battery management board 23, and are electrically connected to the corresponding pole ears 221, thereby achieving electrical connection between the battery management board 23 and the battery cell 22. This arrangement is conducive to reducing the space occupied by the connection structure between the battery management board 23 and the battery cell 22, making the internal layout of the battery cell assembly 20 neater and the space utilization more reasonable.

[0047] The specific electrical connection method between the connecting wing 231 and the tab 221 can be selected according to the actual arrangement of the battery management board 23 and the battery cell 22. For example, the electrical connection can be achieved by soldering, connecting with conductive fasteners, connecting with nickel sheets, etc. In one implementation, refer to Figure 7 and Figure 8 The electrical connection between the connecting wing 231 and the corresponding tab 221 on the battery cell 22 can be achieved by welding the nickel sheet 24 .

[0048] In some embodiments, reference Figure 7 , the battery cell 22 also has a plurality of support columns 222 arranged at intervals. The support columns 222 are made of an electrically insulating material and are used as a support structure for the battery management board 23 to be installed on the battery cell 22. Optionally, a mounting bracket can be used as a container for a plurality of battery 1 monomers, and a plurality of battery 1 monomers are accommodated and arranged in the mounting bracket to form a battery cell 22, and a plurality of protruding structures are provided on the mounting bracket as support columns 222, and the battery management board 23 is placed on the plurality of support columns 222. In one embodiment, the positions of the plurality of support columns 222 correspond to the plurality of connecting wings 231 on the battery management board 23, and each connecting wing 231 can be placed on the corresponding support column 222. Each support column 222 can be arranged on one side of the pole ear 221 or between two adjacent pole ears 221, so that when the connecting wing 231 is placed on the support column 222, it can be conveniently electrically connected to the corresponding pole ear 221. In one embodiment, at least one connecting wing 231 is provided with a positioning hole 232, and at least one supporting column 222 is provided with a positioning block 223 corresponding to the positioning hole 232. When the battery management board 23 is installed on one side of the battery cell 22, the positioning block 223 is inserted into the corresponding positioning hole 232, so as to realize the positioning installation between the connecting wing 231 and the corresponding supporting column 222 and the pole ear 221.

[0049] The battery 1 also includes at least one electrical connector, and the battery cell assembly 20 is electrically connected to the at least one electrical connector to realize current transmission between the battery 1 and the outside world. For example, the battery cell assembly 20 can be discharged to an external electrical device through the electrical connector, or the battery cell assembly 20 can be charged by receiving electrical energy from the outside through the electrical connector. The position and number of the electrical connectors in the battery 1 can be selected according to the needs of the use scenario of the battery 1. In some embodiments, referring to Figure 2 The battery 1 has two electrical connectors, namely a top electrical connector 50 and a bottom electrical connector 60. The top electrical connector 50 is arranged at the upper end of the battery 1 and is electrically connected to the battery cell assembly 20, while the bottom connector is arranged at the lower end of the battery 1 and is electrically connected to the battery cell assembly 20. The top electrical connector 50 and the bottom electrical connector 60 can be used alone or in combination to connect to an external device to achieve the transmission of electrical energy. The top electrical connector 50 and the bottom electrical connector 60 can be of the same structure, or can be of different structures. By providing the top electrical connector 50 and the bottom electrical connector 60, when using the battery 1, the user can choose to connect the corresponding electrical connector on the electrical device or charging device to the top electrical connector 50 or the bottom electrical connector 60 according to the convenience of installation or connection, thereby making the battery 1 suitable for different electrical devices or charging devices, thereby improving the wide range of usage scenarios of the battery 1. For example, in one application scenario, the battery 1 of the embodiment of the present invention can be used as a power battery for an electric two-wheeled vehicle. By providing a top electrical connector 50 and a bottom electrical connector 60, the battery 1 can be used for an electric two-wheeled vehicle with a fixed electrical connector at the bottom of the battery compartment 91, and can also be used for an electric two-wheeled vehicle with a flexible wire connector 2 (see FIG. Figure 1 and Figure 2 ) realizes an electric two-wheeled vehicle connected to battery 1.

[0050] In some embodiments, the battery 1 further includes a first connecting line 70 and a second connecting line 80 , wherein the first connecting line 70 is used for electrical connection between the battery cell assembly 20 and the top electrical connector 50 , and the second connecting line 80 is used for electrical connection between the battery cell assembly 20 and the bottom electrical connector 60 . Fig.10 FIG. 1 is a schematic diagram of an embodiment of the present invention in which a battery cell assembly 20 is connected to a top electrical connector 50 via a first connection line 70 and to a bottom electrical connector 60 via a second connection line 80. For the sake of convenience, Fig.10 Only the structures and relative positions of the battery cell assembly 20, the first connection line 70, the second connection line 80, the top electrical connector 50 and the bottom electrical connector 60 are shown. Fig.10The inner shell 21 of the battery cell assembly 20 has a wire outlet 213, and there is a wire passing space (not shown in the figure) between the outer surface of the inner shell 21 and the inner wall of the outer shell 10 for the first connecting wire 70 and the second connecting wire 80 to pass through, and the wire passing space extends from the wire outlet 213 to the top electrical connector 50 and the bottom electrical connector 60. One end of the first connecting wire 70 is electrically connected to the battery management board 23 of the battery cell assembly 20 disposed in the inner shell 21, and the other end passes through the inner shell 21 from the wire outlet 213, extends in the wire passing space to the top electrical connector 50 and is electrically connected to the top electrical connector 50. One end of the second connecting wire 80 is electrically connected to the battery management board 23 disposed in the inner shell 21, and the other end passes through the inner shell 21 from the wire outlet 213, extends in the wire passing space to the bottom electrical connector 60 and is electrically connected to the bottom electrical connector 60. The position of the wire outlet 213 can be determined according to factors such as the position of the battery management board 23 and the spatial arrangement in the outer shell 10, for example Fig.10 The position of the outlet 213 is set at the upper end of the battery cell assembly 20. The first connecting line 70 and the second connecting line 80 can be connected to the battery management board 23 independently, or the first connecting line 70 and the second connecting line 80 can be connected to the same position of the battery management board 23. For example, the same set of wiring harnesses can be used to connect to the battery management board 23. After the wiring harness passes through the outlet 213, it is divided into two to form the first connecting line 70 and the second connecting line 80, which are respectively connected to the top electrical connector 50 and the bottom electrical connector 60.

[0051] In some embodiments, the battery 1 further includes a positioning device 30, which is used to realize the positioning of the geographical location of the corresponding battery 1. The positioning device 30 can realize the positioning function through one or more of satellite positioning, base station positioning, Bluetooth positioning or other positioning principles applicable to the battery 1. For example, the positioning device 30 can be a positioning device 30 that realizes positioning based on the Global Positioning System (GPS) or the Beidou satellite navigation system. Fig.12 is a schematic diagram of the three-dimensional structure of the positioning device 30 of this embodiment, Fig.13 yes Figure 3 The local enlarged structural diagram of A in the figure is as follows: Fig.14 3 is a schematic block diagram of the structure of the positioning device 30 of this embodiment. Figure 3 , Figure 12-14, the positioning device 30 is arranged in the outer shell 10 and outside the inner shell 21, or in other words, the positioning device 30 is arranged between the inner wall of the outer shell 10 and the outer wall of the inner shell 21. The positioning device 30 includes a protective shell 31 and a positioning circuit 32 arranged in the protective shell 31. The positioning circuit 32 may include an antenna and a digital signal processor, a microcontroller, a clock circuit, and one or more of other components for realizing the positioning function. Compared with arranging the positioning circuit 32 in the battery cell assembly 20, this embodiment is more conducive to waterproofing and other protections for the positioning device 30 by arranging the positioning device 30 outside the battery cell assembly 20 and encapsulating it through the protective shell 31. When the battery cell assembly 20 is damaged, the positioning device 30 can still maintain its working ability to realize the tracking of the position of the battery 1. For example, when the battery cell 22 overheats, if the positioning circuit 32 is arranged in the inner shell 21, the positioning circuit 32 may be damaged due to the high temperature and cannot work normally; while the positioning device 30 of this embodiment is arranged outside the inner shell 21 and a protective shell 31 is provided to protect the positioning circuit 32. The inner shell 21 and the protective shell 31 can isolate the temperature of the battery cell 22 to a certain extent, thereby ensuring that the positioning circuit 32 can work normally.

[0052] The housing 10 has a second accommodating cavity 14, and the positioning device 30 is disposed in the second accommodating cavity 14. The position of the second accommodating cavity 14 can be selected at an appropriate position in the housing 14 according to the need for the positioning device 30 to realize the positioning function, for example, Figure 3 and Fig.11 , the second accommodation chamber 14 can be arranged above the battery cell assembly 20 and away from the top connector. Figure 3 , Fig.11 and Fig.12 In some embodiments, a first partition 16 is provided between the first accommodating cavity 13 and the second accommodating cavity 14, and the first partition 16 can play a certain isolation effect between the positioning device 30 and the battery cell assembly 20. The positioning device 30 can be connected to the housing 10 and fixed in the second accommodating cavity 14 by snapping, bonding, fastener connection or other methods to prevent the positioning device 30 from shaking in the housing 10.

[0053] The electric energy required for the positioning device 30 to work can be provided by a built-in power supply, or can be provided by the battery cell assembly 20, and can be specifically provided according to the needs of the battery 1 function. In one embodiment, the positioning device 30 also includes a positioning power supply 34, and the positioning power supply 34 is arranged in the protective shell 31 and is electrically connected to the positioning circuit 32 to supply electric energy to the positioning circuit 32. In one embodiment, the positioning device 30 has an electric energy transmission interface 33, and the electric energy transmission interface 33 is electrically connected to the positioning circuit 32. The electric energy transmission interface 33 and the battery cell assembly 20 can be electrically connected by a cable or other means, so that the battery cell assembly 20 can supply electric energy to the positioning device 30. In one embodiment, referring to Fig.14 The positioning device 30 can be provided with both a positioning power supply 34 and a power transmission interface 33, and the positioning power supply 34 is a rechargeable power source; when the power transmission interface 33 is connected to the battery assembly 20, the battery assembly 20 can charge the positioning power supply 34 via the power transmission interface 33, and the battery assembly 20 can also directly supply power to the positioning circuit 32 to realize the positioning work, thereby ensuring the continuous endurance of the positioning device 30; and when the battery assembly 20 fails, the positioning circuit 32 can use the power of the positioning power supply 34 to perform positioning work, thereby ensuring the stability of the positioning device 30.

[0054] In some embodiments, the battery 1 further includes a Radio Frequency Identification (RFID) tag. Fig.15 yes Figure 3 The enlarged schematic diagram of the B part in the figure is shown in Figure 1. Figure 3 , Figure 4 and Fig.15 , the RFID tag 40 is arranged in the outer shell 10 and outside the battery cell assembly 20. Optionally, the RFID tag 40 can be spaced a certain distance from the positioning device 30 and the battery cell assembly 20 to avoid signal interference between them. The RFID tag 40 can be an active tag or a passive tag, which can be selected according to the needs of the battery 1 usage scenario. The unique identification information of the battery 1 can be stored in the RFID tag 40. Through the tag reader corresponding to the RFID tag 40, the unique identification information of the battery 1 can be read in a non-contact manner, thereby facilitating the identification and management of the battery 1. The outer shell 10 can also be provided with a third accommodating cavity 15, and the RFID tag 40 is arranged in the third accommodating cavity 15. A second partition 17 is provided between the third accommodating cavity 15 and the first accommodating cavity 13, and the third accommodating cavity 15 is spaced apart from the first accommodating cavity 13 so that the third accommodating cavity 15 forms a relatively independent space. The position of the third accommodating cavity 15 is set at a position convenient for the RFID tag 40 to be read, for example, with reference to Figure 4The third accommodating cavity 15 can be arranged above the battery cell assembly 20 and close to the top surface of the battery 1. The RFID tag 40 can be arranged in the third accommodating cavity 15 by bonding, fastener connection, etc., for example, Figure 4 The RFID tag 40 in the battery 1 can be bonded to the inner surface of the housing 10. By arranging the RFID tag 40 in the housing 10, the housing 10 can protect the RFID tag 40 and prevent the RFID tag 40 from being damaged during the use of the battery 1.

[0055] The battery 1 of the embodiment of the present invention can be used as a power source in a variety of scenarios. In one application scenario, the battery 1 of the embodiment of the present invention can be implemented as a power battery for an electric vehicle. Among electric vehicles, there are electric vehicles with replaceable batteries, such as electric two-wheeled vehicles with replaceable batteries. The battery 1 of the embodiment of the present invention can also be applied to electric vehicles with replaceable batteries. Furthermore, the battery 1 of the embodiment of the present invention can be applied to a battery replacement system. Fig.16 , the battery exchange system includes a battery exchange device 90 and a plurality of batteries 1, wherein the plurality of batteries 1 include at least one battery 1 in at least some embodiments of the present invention. The battery exchange device 90 has a plurality of battery compartments 91 capable of accommodating batteries 1, and the battery compartments 91 can be used to store batteries 1, and in some scenarios, the battery exchange device 90 can also charge the batteries 1 in the battery compartments 91. An example of the battery exchange device 90 is a battery exchange cabinet. By applying the battery 1 of at least some embodiments of the present invention to the battery exchange system, it is beneficial to ensure the working stability of the battery 1 in a shared scenario. In some embodiments, the battery 1 is provided with a positioning device 30 and the positioning device 30 is arranged between the inner shell 21 and the outer shell 10, and the positioning circuit 32 is separately packaged by the protective shell 31, so as to ensure the working stability of the positioning device 30. The use of the battery 1 in the battery exchange system can realize the positioning of the battery 1, and facilitate the management and anti-theft of the battery 1. In some embodiments, the battery 1 is provided with a radio frequency identification tag 40, and the use of the battery 1 in the battery exchange system can realize a rapid asset inventory of the battery 1.

[0056] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery, characterized in that: include: shell; A battery cell assembly is arranged in the outer shell, the battery cell assembly comprises an inner shell and a battery cell, and the battery cell is arranged in the inner shell; as well as A positioning device is arranged in the outer shell and outside the inner shell. The positioning device comprises a protective shell and a positioning circuit. The positioning circuit is arranged in the protective shell.

2. The battery according to claim 1, characterized in that The shell has a first accommodating chamber and a second accommodating chamber, the battery cell assembly is arranged in the first accommodating chamber, the positioning device is arranged in the second accommodating chamber, and a first partition is arranged between the first accommodating chamber and the second accommodating chamber.

3. The battery according to claim 2, characterized in that The housing further comprises a third accommodating chamber, a second partition is provided between the third accommodating chamber and the first accommodating chamber, and the third accommodating chamber is spaced apart from the first accommodating chamber; The battery further includes a radio frequency identification tag, and the radio frequency identification tag is arranged in the third accommodation cavity.

4. The battery according to claim 1, characterized in that The battery also includes: A radio frequency identification tag is arranged in the housing and spaced apart from the battery core assembly.

5. The battery according to claim 1, characterized in that The positioning device further includes a positioning power supply, which is disposed in the protective shell and electrically connected to the positioning circuit; and / or The positioning device has an electric energy transmission interface, the electric energy transmission interface is electrically connected to the positioning circuit, and the electric energy transmission interface is electrically connected to the battery core assembly.

6. The battery according to claim 1, characterized in that The battery cell assembly also includes: A battery management board is arranged in the inner shell. The battery management board is provided with an information collection circuit and a communication circuit. The battery management board has a plurality of spaced connection wings. The positions of the connection wings correspond to the tabs of the battery cells. At least part of the connection wings are electrically connected to the corresponding tabs.

7. The battery according to claim 6, characterized in that The battery cell also has a plurality of support columns arranged at intervals, the positions of the support columns correspond to the connecting wings, and the connecting wings are arranged on the support columns; At least one of the connecting wings has a positioning hole, and at least one of the supporting columns has a positioning block corresponding to the positioning hole, and the positioning block is inserted into the corresponding positioning hole.

8. The battery according to claim 1, characterized in that The battery also includes: A top electrical connector, disposed at the upper end of the battery and electrically connected to the battery cell assembly; and A bottom electrical connector is disposed at the lower end of the battery and is electrically connected to the battery cell assembly.

9. The battery according to claim 8, characterized in that A wire passing space is provided between the inner shell and the outer shell, the inner shell has a wire outlet, the wire passing space extends from the wire outlet to the top electrical connector and the bottom electrical connector, and the battery further includes a first connecting wire and a second connecting wire; One end of the first connecting wire is electrically connected to the battery core assembly, and the other end of the first connecting wire passes through the inner shell from the wire outlet, passes through the wire passing space and is electrically connected to the top electrical connector; One end of the second connecting line is electrically connected to the battery core assembly, and the other end of the second connecting line passes through the inner shell from the outlet, passes through the line passing space and is electrically connected to the bottom electrical connector.

10. The battery according to claim 1, characterized in that The housing comprises a first outer half shell and a second outer half shell connected to the first outer half shell, wherein an opening of the first outer half shell is arranged opposite to an opening of the second outer half shell; The inner shell comprises a first inner half shell and a second inner half shell connected to the first inner half shell, and the opening of the first inner half shell is arranged opposite to the opening of the second inner half shell; Wherein, the opening direction of the first inner half shell is not parallel to the opening direction of the first outer half shell.

11. A battery replacement system, characterized in that: include: At least one battery according to any one of claims 1 to 10; as well as The battery replacement device has multiple battery compartments for accommodating the batteries.

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