CN220253434U - Battery and electricity utilization device - Google Patents

Abstract

The application relates to a battery and power consumption device, the battery includes: a battery cell having an electrode terminal; the sampling piece and the electric connecting piece are arranged on the electrode terminal in a layer and are integrally connected with the electrode terminal; wherein projections of the electrode terminal, the sampling member, and the electrical connection member in the thickness direction respectively overlap each other at least partially. According to the battery, the sampling piece and the electric connecting piece are mutually overlapped on the electrode terminal of the battery, the projection of the electrode terminal in the thickness direction, the projection of the sampling piece in the thickness direction and the projection of the electric connecting piece in the thickness direction are at least partially overlapped, the integral connection of the electrode terminal, the sampling piece and the electric connecting piece can be realized in one step, the assembly connection procedure of the electrode terminal, the sampling piece and the electric connecting piece is effectively simplified, the equipment investment is reduced, and the production efficiency of the battery is improved.

Description

Battery and electricity utilization device

Technical Field

The present disclosure relates to battery technology, and in particular, to a battery and an electric device.

Background

In the use process of the battery system, parameter information such as the temperature, the voltage and the like of the battery needs to be acquired so as to monitor the state of the battery in real time and ensure the safe operation of the battery system.

In the related art, the assembly and connection procedures of a battery sampling structure for collecting parameter information such as temperature and voltage of a battery and the battery are complicated, the setting input cost is high, and the production efficiency of the battery is low.

Disclosure of Invention

Embodiments of the present application aim to solve at least one of the technical problems existing in the prior art. Therefore, the embodiment of the application provides a battery and an electric device, which can realize the integral connection of an electrode terminal, a sampling piece and an electric connecting piece in one step, and improve the production efficiency of the battery.

In a first aspect, embodiments of the present application provide a battery, including:

a battery cell having an electrode terminal;

the sampling piece and the electric connecting piece are arranged on the electrode terminal in a layer and are integrally connected with the electrode terminal;

wherein projections of the electrode terminal, the sampling member, and the electrical connection member in the thickness direction respectively overlap each other at least partially.

The battery according to the first aspect of the embodiment of the application has at least the following beneficial effects:

according to the battery, the sampling piece and the electric connecting piece are mutually overlapped on the electrode terminal of the battery, the projection of the electrode terminal in the thickness direction, the projection of the sampling piece in the thickness direction and the projection of the electric connecting piece in the thickness direction are at least partially overlapped, the integral connection of the electrode terminal, the sampling piece and the electric connecting piece can be realized in one step, the assembly connection procedure of the electrode terminal, the sampling piece and the electric connecting piece is effectively simplified, the equipment investment is reduced, and the production efficiency of the battery is improved.

In some embodiments, the sampling member is disposed between the electrode terminal and the electrical connection member.

By the arrangement, the sampling piece and the electrode terminal can be directly connected in a laminated mode, the contact area of the sampling piece and the electrode terminal is increased, and the accuracy of acquiring parameter information of the battery cell by the sampling piece is improved.

In some embodiments, the electrical connection is provided between the electrode terminal and the sampling member.

So set up, the sampling piece passes through the free electrode terminal of electric connector connection battery to gather the free parameter information of battery, simultaneously, electric connector and electrode terminal direct range upon range of connection increases the area of contact of electric connector and electrode terminal, improves the conductibility of electric connector, and then improves the holistic reliability of battery.

In some embodiments, the projection of the sampling member in the thickness direction covers the projection of the electrode terminal in the thickness direction; and/or

The projection of the electrical connection member in the thickness direction covers the projection of the electrode terminal in the thickness direction.

So set up for sample piece and electric connection spare range upon range of area each other is greater than electrode terminal's area, effectively reduces the probability that sample piece and/or electric connection spare and electrode terminal appear the rosin joint, has also reduced the probability that sample piece and electric connection spare appear the rosin joint, has improved electrode terminal, sample piece and electric connection spare integrated connection's efficiency, has also improved holistic stability and reliability of battery.

In some embodiments, the electrode terminal, the sampling member and the electrical connector are made of the same material.

The device can effectively improve the quality of the integrated connection of the electrode terminal, the sampling piece and the electric connecting piece, and further improve the reliability of the whole battery.

In some embodiments, the electrode terminal, the sampling member and the electrical connector are all made of aluminum.

By the arrangement, the production cost of the battery can be reduced to a certain extent.

In some embodiments, the sampling member is provided with a first detection hole, the electrical connecting member is provided with a second detection hole, the first detection hole and the second detection hole are in alignment communication, and the center of the first detection hole is coaxial with the center of the electrode terminal.

The device is convenient for later detection of the connection quality of the electrode terminal, the sampling piece and the electric connecting piece.

In some embodiments, the sampling member includes a sampling body and a pin portion protruding from an outer periphery of the sampling body.

So set up, the controller communication connection of convenient sampling piece and battery.

In some embodiments, the sampling member and the electrical connection member are each configured as a sheet-like structure.

So set up, can increase the area of connection of sampling piece and/or electric connection piece and battery cell's electrode terminal, also increased the area of connection of sampling piece and electric connection piece, make things convenient for battery cell's electrode terminal, sampling piece and electric connection piece three body coupling, also further improved the holistic reliability of battery.

In some embodiments, a bending part is arranged on one side of the electric connecting piece, which is close to the electrode terminal, and the bending part abuts against the battery cell.

So set up for the kink can bear the single expansion stress of battery or strike stress, reduces the single electrode terminal of battery, sampling piece and the probability that the connection appears becoming flexible between the electric connection spare three, further improves holistic structural stability and the reliability of battery.

In a second aspect, an embodiment of the present application provides an electrical device, where the electrical device includes the battery described above, and the battery is configured to provide electrical energy.

The electric device according to the embodiment of the second aspect of the application has at least the following beneficial effects:

the power utilization device provided by the embodiment of the application has the same technical effect as that of the battery because the battery is configured, namely, the integrated connection of the electrode terminal, the sampling piece and the electric connecting piece of the battery can be realized in one step, the assembly connection procedure of the electrode terminal, the sampling piece and the electric connecting piece is effectively simplified, the equipment investment is reduced, and the production efficiency of the battery is improved.

The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

fig. 1 is a schematic structural view of a vehicle according to an embodiment of the present application.

Fig. 2 is a schematic exploded view of the battery according to the embodiment of the present application.

Fig. 3 is a schematic view of a part of the structure of a battery cell according to an embodiment of the present application.

Fig. 4 is a partially exploded view of a battery cell according to an embodiment of the present application.

Fig. 5 is a partial structural sectional view of a battery cell according to an embodiment of the present application.

Fig. 6 is a partial enlarged view at a in fig. 5.

Fig. 7 is a schematic view of another part of the structure of a battery cell according to an embodiment of the present application.

Fig. 8 is another partially exploded view of a battery cell according to an embodiment of the present application.

Fig. 9 is a cross-sectional view of another part of the structure of a battery cell according to an embodiment of the present application.

Fig. 10 is a partial enlarged view at B in fig. 9.

Fig. 11 is a schematic structural view of a sampling member according to an embodiment of the present application.

Fig. 12 is a schematic view of a partial structure of a battery according to an embodiment of the present application.

Reference numerals illustrate: a vehicle 1000; a battery 10; a case 11; a controller 20; a connection line 21; a motor 30; a battery cell 100; an electrode terminal 110; a sampling member 200; a first detection hole 210; a sampling body 220; a lead portion 230; an electrical connector 300; a second detection hole 310; bending portion 320.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Currently, the more widely the application of power cells. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and various fields such as aerospace and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

At present, the new energy automobile market is rapidly developed, a battery is used as a power source of the new energy automobile, and the reliability of the battery is crucial to the whole vehicle system. In the use process of the battery system, parameter information such as the temperature, the voltage and the like of the battery needs to be acquired so as to monitor the state of the battery in real time and ensure the safe operation of the battery system.

In the related art, a battery sampling structure for acquiring parameter information such as temperature and voltage of a battery needs to be welded on a conductive sheet, and then the battery sampling structure welded with the conductive sheet is welded on an electrode terminal of the battery, and the battery sampling structure can be assembled on the battery only through two welding procedures, so that equipment investment cost is high, and production efficiency is low.

Aiming at the problems that the assembly and connection procedures of the current battery sampling structure and a battery are complex and the production efficiency of the battery is low, the embodiment of the application provides a battery and an electricity utilization device.

The battery disclosed in the embodiments of the present application may be used in, but not limited to, electric devices such as vehicles, ships or aircraft.

For convenience of description, the following embodiment will take an electric device according to an embodiment of the present application as an example of the vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to an embodiment of the present application. The vehicle 1000 may be a fuel oil vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or a range-extended vehicle. The battery 10 is provided in the interior of the vehicle 1000, and the battery 10 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 10 may be used for power supply of the vehicle 1000, for example, the battery 10 may serve as an operating power source of the vehicle 1000. The vehicle 1000 may also include a controller 20 and a motor 30, the controller 20 being configured to control the battery 10 to power the motor 30, for example, for operating power requirements during start-up, navigation, and travel of the vehicle 1000.

In some embodiments of the present application, the battery 10 may not only serve as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, instead of or in part instead of fuel oil or natural gas, to provide driving power for the vehicle 1000.

Referring to fig. 2, fig. 2 is an exploded view of the structure of the battery 10 provided in the embodiment of the present application. The battery 10 includes a case 11 and a battery cell 100, and the battery cell 100 is accommodated in the case 11. The case 11 is used to provide an accommodating space for the battery cell 100, and the case 11 may have various structures. In some embodiments, the case 11 includes an upper case and a lower case that are covered with each other, and the upper case and the lower case together define a receiving space for receiving the battery cell 100. The case 11 formed by the upper case and the lower case may be various shapes such as a cylinder, a rectangular parallelepiped, etc.

In the battery 10, the number of the battery cells 100 may be plural, and the plural battery cells 100 may be connected in series, parallel, or series-parallel, where series-parallel refers to both of the plural battery cells 100 being connected in series and parallel. The plurality of battery cells 100 can be directly connected in series, in parallel or in series-parallel, and then the whole body formed by the plurality of battery cells 100 is accommodated in the box 11. Of course, the battery 10 may also be a battery module form formed by connecting a plurality of battery cells 100 in series or parallel or series-parallel connection, and then connecting a plurality of battery modules in series or parallel or series-parallel connection to form a whole and be accommodated in the case 11. The battery 10 may also include other structures, for example, the battery 10 may also include electrical connections for making electrical connection between the plurality of battery cells 100.

Wherein each battery cell 100 may be a secondary battery or a primary battery; but not limited to, lithium sulfur batteries, sodium ion batteries, or magnesium ion batteries. The battery cell 100 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, etc.

Referring to fig. 3, 4, 5 and 6, fig. 3 is a schematic view illustrating a part of the structure of a battery cell according to an embodiment of the present application. Fig. 4 is a partially exploded view of a battery cell according to an embodiment of the present application. Fig. 5 is a partial structural sectional view of a battery cell according to an embodiment of the present application. Fig. 6 is a partial enlarged view at a in fig. 5.

Referring to fig. 3 to 6, the battery 10 provided in the embodiment of the present application includes a battery cell 100, a sampling member 200, and an electrical connector 300.

Wherein the battery cell 100 has an electrode terminal 110. The sampling member 200 and the electrical connector 300 are each layered on the electrode terminal 110, and projections of the electrode terminal 110, the sampling member 200 and the electrical connector 300 in the thickness direction are at least partially overlapped with each other.

The sampling member 200, the electrical connector 300, and the electrode terminal 110 are integrally connected.

In this application, the electrical connector 300 may connect two or more adjacent battery cells 100 in series or in parallel to perform a conductive connection function. The electrical connector 300 may be made of conductive materials such as aluminum bar and copper bar.

In this application, the sampling member 200 may be a flexible circuit board, and an acquisition circuit for acquiring parameter information such as voltage and temperature of the battery cell 100 is integrated on the sampling member 200. The battery 10 is provided with a controller 20, and a connecting wire on the controller 20 is connected with the sampling piece 200, so that parameter information of the battery cell 100 collected by the sampling piece 200 is transmitted to the controller 20 on the battery 10, so that the real-time monitoring of the battery state is realized.

It is understood that, in the present application, the sampling member 200 and the electrical connector 300 are both disposed on the electrode terminal 110, and the projection of the electrode terminal 110 in the thickness direction, the projection of the sampling member 200 in the thickness direction, and the projection of the electrical connector 300 in the thickness direction at least partially overlap with each other can be understood as: the electrode terminals 110 of the battery cells 100, the sampling member 200, and the electrical connection members 300 are sequentially stacked in the thickness direction of the battery cells 100, i.e., in the up-down direction, from bottom to top, as in the structure of the battery cells illustrated in fig. 3 or 4; or the electrode terminals 110, the electrical connection members 300, and the sampling members 200 of the battery cells 100 are sequentially stacked from bottom to top, as in the structure of the battery cells illustrated in fig. 7 or 8.

The electrode terminal 110, the sampling member 200, and the electrical connector 300 of the battery cell 100 are stacked on each other, and after the projection of the electrode terminal 110 in the thickness direction, the projection of the sampling member 200 in the thickness direction, and the projection of the electrical connector 300 in the thickness direction are at least partially overlapped with each other, the electrode terminal 110, the sampling member 200, and the electrical connector 300 can be integrally connected by means of connection methods such as laser welding, laser filling welding, and laser 3D printing connection.

Thus, the electrode terminal, the sampling member and the electric connector are integrally connected in one step, the multi-step connecting process is not needed, the assembly connecting process of the electrode terminal 110, the sampling member 200 and the electric connector 300 can be effectively simplified, the equipment investment is reduced, and the production efficiency of the battery is improved.

It can be appreciated that, in the battery of the embodiment of the application, the sampling member 200 and the electrical connector 300 are mutually stacked on the electrode terminal 110 of the battery unit 100, and the projection of the electrode terminal 110 in the thickness direction, the projection of the sampling member 200 in the thickness direction and the projection of the electrical connector 300 in the thickness direction are at least partially overlapped, so that the integral connection of the electrode terminal, the sampling member and the electrical connector can be realized in one step, the assembly connection procedure of the electrode terminal 110, the sampling member 200 and the electrical connector 300 is effectively simplified, the equipment investment is reduced, and the production efficiency of the battery is improved.

Referring again to fig. 3-6, in some embodiments of the present application, the sampling member 200 is disposed between the electrode terminal 110 and the electrical connection member 300.

That is, the electrode terminals 110 of the battery cells 100, the sampling member 200, and the electrical connection member 300 are sequentially stacked from bottom to top and integrally connected.

Specifically, in one embodiment, referring to fig. 4, the battery 10 has a plurality of battery cells 100, each battery cell 100 having two electrode terminals, a first electrode terminal and a second electrode terminal, respectively, which may be understood as positive and negative electrode posts of the battery cell 100. The electrical connector 300 has two opposite connection parts integrally connected with the first electrode terminal and the second electrode terminal of the battery cell 100 through the two sampling members 200, respectively. The adjacent two battery cells 100 are connected by the electrical connector 300 thereon, so that the adjacent two battery cells 100 on the battery 10 are connected in parallel.

Of course, in another embodiment, one connection part of the electrical connector 300 is connected to the first electrode terminal of one battery cell 100 through one sampling member 200, and the other connection part is connected to the second electrode terminal of the adjacent battery cell 100 through the other sampling member 200, so that the adjacent two battery cells 100 of the battery 10 are connected in series.

In this way, the single electric connector 300 can be integrally connected with two electrode terminals through two sampling pieces 200, so that the accuracy of acquiring parameter information of the battery cell 100 by the sampling pieces 200 is improved, the efficiency of assembling and connecting the electrode terminals 110 of the battery cell 100, the sampling pieces 200 and the electric connector 300 is also improved, and the production efficiency of the battery 10 is further improved.

It should be further noted that, according to the present application, the sample piece 200 is laminated between the electrode terminal 110 and the electrical connector 300, so that the sample piece 200 and the electrode terminal 110 are directly laminated and connected, the contact area between the sample piece 200 and the electrode terminal 110 is increased, and the accuracy of acquiring the parameter information of the battery cell 100 by the sample piece 200 is improved.

In some embodiments of the present application, referring to fig. 7 to 10, an electrical connector 300 is provided between the electrode terminal 110 and the sampling member 200.

It can be understood that the electrode terminals 110 of the battery cells 100, the electrical connection members 300, and the sampling members 200 are sequentially stacked and integrally connected from bottom to top.

So set up, sampling piece 200 passes through the electrode terminal 110 of electric connector 300 connection battery cell 100 to gather the parameter information of battery cell 100, simultaneously, electric connector 300 and electrode terminal 110 direct range upon range of connection increases the area of contact of electric connector 300 and electrode terminal 110, improves the conductive properties of electric connector 300, and then improves the holistic reliability of battery 10.

In some embodiments of the present application, referring again to fig. 3 to 6 or 7 to 10, the projection of the sampling member 200 in the thickness direction covers the projection of the electrode terminal 110 in the thickness direction. And/or the projection of the electrical connector 300 in the thickness direction covers the projection of the electrode terminal 110 in the thickness direction.

Specifically, referring to fig. 3 to 6, the electrode terminal 110, the sampling member 200, and the electrical connector 300 are sequentially laminated and integrally connected as an example. When the battery 10 is produced, the sampling member 200 and the electrical connector 300 are laminated on the electrode terminal 110 in this order, and at this time, the surface of the sampling member 200 on the side close to the electrode terminal 110 completely covers the electrode terminal 110, and the projection of the electrical connector 300 in the thickness direction also completely covers the electrode terminal 110. Then, the electrode terminal 110, the sample 200, and the electrical connector 300 are integrally welded by means of connection such as laser welding, laser filling welding, and laser 3D printing connection.

It will be appreciated that in the process of integrally connecting the electrode terminal 110, the sample 200 and the electrical connector 300, positioning and assembly errors may cause the electrode terminal 110, the sample 200 and the electrical connector 300 to slide and be dislocated relatively during the connection process, resulting in poor welding and unstable connection of the electrode terminal 110, the sample 200 and the electrical connector 300.

Based on this, the projection of the sampling member 200 in the thickness direction covers the projection of the electrode terminal 110 in the thickness direction, and/or the projection of the electric connector 300 in the thickness direction covers the projection of the electrode terminal 110 in the thickness direction, so that the stacking area of the sampling member 200 and the electric connector 300 is larger than the area of the electrode terminal 110, the probability of the occurrence of cold joint between the sampling member 200 and/or the electric connector 300 and the electrode terminal 110 is effectively reduced, the probability of the occurrence of cold joint between the sampling member 200 and the electric connector 300 is also reduced, the integral connection efficiency of the electrode terminal 110, the sampling member 200 and the electric connector 300 is improved, and the integral stability and reliability of the battery 10 are also improved.

In some embodiments of the present application, the material of the electrode terminal 110, the material of the sampling member 200, and the material of the electrical connector 300 are the same.

It will be understood that, when the materials of the electrode terminal 110, the sample member 200 and the electrical connector 300 are different, the welding will be unstable and even crack, which affects the reliability of the battery 10 as a whole, due to the incompatibility of the dissimilar materials and the electrochemical reaction of the dissimilar materials.

Accordingly, the electrode terminal 110, the sampling member 200, and the electrical connector 300 are made of the same material, so that the quality of the integrated connection of the electrode terminal 110, the sampling member 200, and the electrical connector 300 can be effectively improved, and the reliability of the entire battery 10 can be further improved.

Further, the electrode terminal 110, the sampling member 200 and the electrical connector 300 are made of aluminum, and the metal aluminum has good electrical conductivity, and the material cost of the metal aluminum is low, so that the production cost of the battery 10 can be reduced to a certain extent.

Referring again to fig. 3 and 4 or fig. 7 and 8, in some embodiments of the present application, the sampling member 200 is provided with a first detection hole 210, the electrical connector 300 is provided with a second detection hole 310, the first detection hole 210 and the second detection hole 310 are in alignment communication, and the center of the first detection hole 210 is coaxial with the center of the electrode terminal 110.

Specifically, the first detection hole 210 on the sampling member 200 and the second detection hole 310 on the electrical connector 300 are circular holes. When the electrode terminal 110, the sample 200, and the electrical connector 300 of the battery cell 100 are integrally welded, the welding position does not extend to the center position of the electrode terminal 110, the first detection hole 210 on the sample 200, and the second detection hole 310 on the electrical connector 300, that is, the center position of the electrode terminal 110, the first detection hole 210 on the sample 200, and the second detection hole 310 on the electrical connector 300 are not filled with the welding material.

Thus, when the sample 200 and the electrical connector 300 are sequentially stacked on the electrode terminal 110 of the battery cell 100, and the three are integrally welded, the quality of the integral connection of the three can be detected by detecting whether there is a weld between the center position of the electrode terminal 110 and the first detection hole 210 on the sample 200 and between the first detection hole 210 on the sample 200 and the second detection hole 310 on the electrical connector 300.

For example, when it is detected that there is a weld between the center position of the electrode terminal 110 and the first detection hole 210 on the sample piece 200 and/or between the first detection hole 210 on the sample piece 200 and the second detection hole 310 on the electrical connector 300, that is, it is indicated that the electrode terminal 110, the sample piece 200 and the electrical connector 300 are not completely overlapped, corresponding compensation measures can be taken, that is, the connection quality of the electrode terminal 110, the sample piece 200 and the electrical connector 300 is correspondingly improved.

Obviously, the first detection hole 210 is formed in the sampling piece 200, the second detection hole 310 is formed in the electric connecting piece 300, the first detection hole 210 and the second detection hole 310 are in alignment communication, the center of the first detection hole 210 is coaxial with the center of the electrode terminal 110, and the later detection of the connection quality of the electrode terminal 110, the sampling piece 200 and the electric connecting piece 300 is facilitated.

In some embodiments of the present application, reference is made to fig. 3 and 11, where fig. 11 is a schematic structural diagram of a sampling member 200 according to an embodiment of the present application. The sampling member 200 includes a sampling body 220 and a pin part 230, the pin part 230 protruding from an outer circumference of the sampling body 220.

Specifically, referring to fig. 12, fig. 12 is a schematic partial structure of a battery 100 according to an embodiment of the present application. It can be understood that after the electrode terminals 110 of the battery cells 100, the sampling main body 220 and the electrical connector 300 are sequentially stacked and integrally connected, the lead portions 230 protruding from the outer periphery of the sampling main body 220 are connected with the connecting wires of the controller 20 of the battery 10, so that the function of transmitting the collected parameter information of the battery cells 100 to the controller 20 of the battery 10 in real time is realized, and the controller 20 is convenient for monitoring the running state of the battery 10 for the battery 10 in real time.

It should be noted that, the pin portion 230 may be connected to the connection line of the controller 20 by a clamping, pressing, or other method, or may be connected to the connection line of the controller 20 by a direct welding method, which is not particularly limited.

It is apparent that the present application facilitates the communication connection of the sampling member 200 with the controller 20 of the battery 10 by providing the sampling member 200 with the outer peripheral lead portion 230 protruding from the sampling body 220.

Referring again to fig. 3, 4 or 8, 9, in some embodiments of the present application, both the sampling member 200 and the electrical connector 300 are configured as sheet-like structures.

By the arrangement, the connection area of the sampling piece 200 and/or the electric connecting piece 300 and the electrode terminal 110 of the battery cell 100 can be increased, the connection area of the sampling piece 200 and the electric connecting piece 300 is also increased, the electrode terminal 110 of the battery cell 100, the sampling piece 200 and the electric connecting piece 300 are conveniently connected integrally, and the overall reliability of the battery 10 is further improved.

Referring to fig. 3, 5 or 7 and 9, in some embodiments of the present application, a bending portion 320 is disposed on a side of the electrical connector 300 near the electrode terminal 110, and the bending portion 320 abuts against the battery cell 100.

Specifically, the battery cell 100 has an end cap at one end near the electrode terminal 110, and the bent portion 320 of the electrical connector 300 protrudes toward the end cap to form a groove with an opening facing upward and the bottom abutting the end cap.

When the battery 10 is in actual use, it expands or is impacted by external force, and the bending part 320 is arranged, so that the bending part 320 can bear the expansion stress or impact stress of the battery 100, the probability of loose connection among the electrode terminal 110, the sampling piece 200 and the electric connecting piece 300 of the battery 100 is reduced, and the overall structural stability and reliability of the battery 10 are further improved.

In addition, the embodiment of the application also provides an electric device, which comprises the battery 10, wherein the battery 10 is used for providing electric energy.

Specifically, the electric device may be a vehicle, a mobile phone, a portable apparatus, a notebook computer, a ship, a spacecraft, an electric toy, an electric tool, or the like. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle; spacecraft including airplanes, rockets, space planes, spacecraft, and the like; the electric toy includes fixed or mobile electric toys, such as a game machine, an electric car toy, an electric ship toy, and an electric airplane toy; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railroad power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete shakers, and electric planers, among others. The embodiment of the application does not limit the electric device in particular.

Obviously, the power utilization device of the embodiment of the present application has the same technical effects as those of the battery because the above-mentioned battery is configured, that is, the integrated connection of the electrode terminal 110, the sampling member 200 and the electrical connector 300 of the battery cell 100 can be realized in one step, so that the assembly and connection procedures of the electrode terminal 110, the sampling member 200 and the electrical connector 300 are effectively simplified, the equipment investment is reduced, and the production efficiency of the battery 10 is improved.

Referring to fig. 1 to 12, an embodiment of the present application provides a battery and an electric device, the battery including: a battery cell 100, the battery cell 100 having an electrode terminal 110; the sampling member 200 and the electrical connector 300 are respectively arranged on the electrode terminal 110 and are integrally connected with the electrode terminal 110; wherein projections of the electrode terminal 110, the sampling member 200, and the electrical connection member 300 in the thickness direction respectively overlap each other at least partially.

The battery and the power consumption device of the embodiment of the application can realize the integral connection of the electrode terminal 110, the sampling piece 200 and the electric connecting piece 300 of the battery monomer 100 in one step, effectively simplify the assembly connection procedure of the electrode terminal 110, the sampling piece 200 and the electric connecting piece 300, reduce equipment investment and improve the production efficiency of the battery 10.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (11)

1. A battery (10), characterized by comprising:

a battery cell (100), the battery cell (100) having an electrode terminal (110);

a sampling member (200) and an electrical connection member (300) which are both provided on the electrode terminal (110) and are integrally connected to the electrode terminal (110);

wherein projections of the electrode terminal (110), the sampling member (200) and the electrical connector (300) in the thickness direction at least partially overlap each other, and the projection of the sampling member (200) in the thickness direction covers the projection of the electrode terminal (110) in the thickness direction.

2. The battery (10) of claim 1, wherein the sampling member (200) is disposed between the electrode terminal (110) and the electrical connection member (300).

3. The battery (10) of claim 1, wherein the electrical connection (300) is disposed between the electrode terminal (110) and the sampling member (200).

4. The battery (10) according to claim 1, wherein,

a projection of the electrical connector (300) in the thickness direction covers a projection of the electrode terminal (110) in the thickness direction.

5. The battery (10) according to claim 1, wherein the electrode terminal (110), the sampling member (200) and the electrical connector (300) are made of the same material.

6. The battery (10) of claim 5, wherein the electrode terminal (110), the sampling member (200) and the electrical connector (300) are all made of aluminum.

7. The battery (10) of claim 1, wherein the sampling member (200) is provided with a first detection hole (210), the electrical connection member (300) is provided with a second detection hole (310), the first detection hole (210) and the second detection hole (310) are in alignment communication, and the center of the first detection hole (210) is coaxial with the center of the electrode terminal (110).

8. The battery (10) of any of claims 1-7, wherein the sampling member (200) comprises a sampling body (220) and a pin portion (230), the pin portion (230) protruding from an outer periphery of the sampling body (220).

9. The battery (10) according to any one of claims 1 to 7, wherein the sampling member (200) and the electrical connection member (300) are each configured as a sheet-like structure.

10. The battery (10) according to any one of claims 1 to 7, wherein a bending portion (320) is provided on a side of the electrical connection member (300) adjacent to the electrode terminal (110), the bending portion (320) being abutted against the battery cell (100).

11. An electrical device comprising a battery (10) according to any one of claims 1 to 10, said battery (10) being adapted to provide electrical energy.