CN222966246U - Battery and terminal equipment - Google Patents

Abstract

The present disclosure is a battery and a terminal device, belonging to the field of battery technology. The battery includes a cell assembly, a circuit protection assembly and an electrical connector. The cell assembly is used to store electrical energy. The cell assembly includes a shell and a cell. The shell is hollow inside to form a cell accommodation space that can accommodate the cell. The cell is arranged in the cell accommodation space. The outer surface of the shell has a recessed area that is recessed toward the inside of the shell and is connected to the shell. The circuit protection assembly is used to provide circuit protection for the cell. The circuit protection assembly is at least partially arranged in the recessed area. The electrical connector is electrically connected to the cell and the circuit protection assembly, respectively. The shell is recessed to a certain extent toward the inside of the shell in the recessed area to form an avoidance space for accommodating the circuit protection assembly, while other areas of the shell do not need to be recessed toward the inside of the shell, which can avoid the existence of idle space around the circuit protection assembly, thereby ensuring that the battery wastes less space inside the terminal device.

Description

Battery and terminal equipment

Technical Field

The disclosure relates to the technical field of batteries, and in particular relates to a battery and terminal equipment.

Background

With the popularization of electronic products, batteries are indispensable components for people's calendar life, and batteries generally consist of a battery cell and a protection plate for protecting or detecting the battery cell.

In the related art, a battery includes a battery cell having a rectangular case and a circuit board parallel to one end surface of the battery cell and connected to the case.

The area of the circuit board is smaller than the area corresponding to the end face of the battery cell, so that one side of the circuit board is provided with an idle space, and the idle space causes larger waste of the internal space of the terminal equipment.

Disclosure of utility model

The embodiment of the disclosure provides a battery and terminal equipment, which can solve the technical problems in the related art. The technical scheme is as follows:

in a first aspect, a battery is provided that includes a cell assembly, a circuit protection assembly, and an electrical connection;

The battery cell assembly is used for storing electric energy and comprises a shell and a battery cell, wherein a battery cell accommodating space capable of accommodating the battery cell is formed in the shell in a hollow mode, the battery cell is arranged in the battery cell accommodating space, and the outer surface of the shell is provided with a concave area which is concave towards the inside of the shell and is connected with the shell;

The circuit protection component is used for providing circuit protection for the battery cell and is at least partially arranged in the concave region;

The electric connecting piece is respectively and electrically connected with the electric core and the circuit protection component.

In one possible embodiment, the shape and size of the circuit protection component and the recessed region are matched so that the circuit protection component can be disposed entirely within the recessed region.

In one possible embodiment, the recessed region is disposed in the vicinity of the connection of the electrical connection to the electrical cell.

In one possible embodiment, the housing is in the shape of a cuboid, the housing has a first side wall and a second side wall opposite to each other, the first side wall is provided with the recessed area, the recessed area and the non-recessed area of the first side wall form a step structure, the step structure comprises a first step portion and a second step portion, and the distance between the first step portion and the second side wall is smaller than the distance between the second step portion and the second side wall.

In one possible embodiment, the cell accommodation space includes a first accommodation space between the first step portion and the second side wall and a second accommodation space between the second step portion and the second side wall;

the battery cell comprises a first battery cell and a second battery cell, wherein the first battery cell is located in the first accommodating space and is matched with the first accommodating space in size, and the second battery cell is located in the second accommodating space and is matched with the second accommodating space in size.

In one possible implementation manner, the first battery cell includes a first current collecting portion and a first tab portion, the first tab portion is located at an end portion of the first current collecting portion, which is close to the first side wall, and the first tab portion is electrically connected to the first current collecting portion and the electrical connection piece respectively.

In one possible implementation manner, the second battery cell includes a second current collecting portion and a second electrode ear, the second electrode ear is located at an end of the second current collecting portion, and the second electrode ear is electrically connected with the second current collecting portion and the electrical connection piece respectively.

In one possible embodiment, the second stepped portion has a through hole for receiving the electrical connector.

In one possible embodiment, the circuit protection assembly includes a circuit board connected to the housing and electrically connected to the electrical connector, and at least one protection element electrically connected to the circuit board.

In one possible embodiment, the circuit protection assembly further includes a protection layer covering the protection element.

In one possible embodiment, the circuit protection assembly is bonded to the housing.

In a second aspect, there is provided a terminal device comprising a battery according to any one of the first aspects.

The technical scheme provided by the embodiment of the disclosure has the beneficial effects that at least:

In this disclosed embodiment, the casing is at the concave region to the inside certain sunken of casing to form and be used for holding circuit protection subassembly dodge the space, and other regions of casing need not to be sunken to the casing inside, can avoid there being idle space around the circuit protection subassembly, and then reduce the waste of battery to terminal equipment inner space.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is one of the explosion diagrams of a battery provided in an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a second explosion of a battery according to an embodiment of the present disclosure;

Fig. 3 is one of schematic structural diagrams of a battery provided in an embodiment of the present disclosure;

FIG. 4 is a second schematic diagram of a battery according to an embodiment of the present disclosure;

Fig. 5 is a schematic view of a structure of a battery in the related art.

Reference numerals:

1. A cell assembly;

11. a housing 11a, a recessed area 11b, a first sidewall 11c, a second sidewall 11d, a non-recessed area;

111. a battery cell accommodation space 111a, a first accommodation space 111b, and a second accommodation space;

112. A step structure 1121, a first step portion 1122, a second step portion 1122a, and a through hole;

12. The battery comprises a battery cell, 121, a first battery cell, 1211, a first current collecting part, 12111, a first positive current collector, 12112, a first negative current collector, 12113, a first isolating film, 1212, a first lug part, 1212a, a first positive lug, 1212b and a first negative lug;

122. A second cell 1221, a second current collecting portion, 12211, a second positive current collector, 12212, a second negative current collector, 12213, a second separator 1222, a second electrode ear portion, 1222a, a second positive electrode ear portion, 1222b, and a second negative electrode ear portion;

2. A circuit protection component 21, a circuit board 22, a protection element 23 and a protection layer;

3. An electrical connection.

Detailed Description

With the popularization of electronic products, the requirements of people on battery parameters are higher and higher, and on the premise of keeping the space occupied by the battery unchanged, the improvement of the space utilization rate to increase the capacity of the battery is an important research direction of battery design.

Referring to fig. 5, in the related art, a battery may include a battery cell assembly 1 and a circuit board 21, the battery cell assembly 1 having a rectangular case 11, and the inside of the case 11 may be used to accommodate positive and negative electrode sheets and the like. The circuit board 21 is vertically placed at one side of the housing 11 and is connected to the housing 11.

The bottom of the vertically placed circuit board 21 has an empty space (i.e. the area where the dotted line frame is located in fig. 5), and this empty space causes waste of a partial area of the battery under the condition that the whole volume of the battery is fixed, which is not beneficial to improving the capacity of the battery.

For the purpose of making the objects, technical solutions and advantages of the present disclosure more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Referring to fig. 1, the disclosed embodiments provide a battery that may include a cell assembly 1, a circuit protection assembly 2, and an electrical connector 3.

The electric core assembly 1 is used for storing electric energy, the electric core assembly 1 comprises a shell 11 and an electric core 12, a battery core accommodating space 111 capable of accommodating the electric core 12 is formed in the shell 11 in a hollow mode, the electric core 12 is arranged in the battery core accommodating space 111, and a concave area 11a concave towards the inside of the shell 11 is formed in the outer surface of the shell 11.

The shell 11 can avoid the external foreign matters from entering the battery, so that the adverse phenomena of collision, friction, corrosion and the like to the internal elements of the battery are caused, and the shell 11 can also form a sealed space for containing electrolyte required by the normal operation of the battery.

The shape of the concave region 11a is not particularly limited in the present disclosure, and may be matched according to the shape of the housing 11, for example, the concave region 11a may be a rectangular parallelepiped region, a spherical region, a prismatic region, or the like.

The circuit protection component 2 is configured to provide circuit protection for the battery cell 12, and the circuit protection component 2 is at least partially disposed in the recess 11a and connected to the housing 11. The electrical connector 3 is electrically connected to the battery cell 12 and the circuit protection assembly 2, respectively.

In some embodiments, the shape and size of the circuit protection component 2 and the recessed region 11a are matched so that the circuit protection component 2 can be disposed entirely within the recessed region 11 a.

On the one hand, under the condition that the space of the concave region 11a is smaller than the volume of the circuit protection component 2, part of the circuit protection component 2 is suspended outside the concave region 11a, which is not beneficial to the stability of the circuit protection component 2, and on the other hand, under the condition that the space of the concave region 11a is far larger than the volume of the circuit protection component 2, the circuit protection component 2 is completely placed in the concave region 11a, and when the concave region 11a also has an idle space, the size of the battery cell accommodating space 111 is extruded, so that the accommodating space of the battery cell 12 is limited, which is not beneficial to the improvement of the capacity of the battery.

Referring to fig. 1, in some embodiments, recessed region 11a is disposed near the junction of electrical connector 3 and cell 12. If the distance between the junction between the recess 11a and the electrical connector 3 and the electrical core 12 is far, this means that the distance between the junction between the electrical connector 3 and the electrical connector 2 placed in the recess 11a and the junction between the electrical connector 3 and the electrical core 12 is far, and at the same time, the electrical connector 3 is electrically connected to the electrical core 12 and the electrical connector 2 respectively, which results in a longer connection length of the electrical connector 3, an increased volume of the electrical connector 3, and an increased manufacturing cost and space occupation of the electrical connector 3.

Therefore, the concave region 11a is arranged near the connection position of the electric connector 3 and the battery cell 12, which is beneficial to reducing the volume of the electric connector 3, thereby reducing the manufacturing cost and occupying space of the electric connector 3.

Referring to fig. 2, in some embodiments, the housing 11 is rectangular in shape, the housing 11 has a first side wall 11b and a second side wall 11c opposite to each other, the first side wall 11b is provided with a recessed region 11a, the recessed region 11a and a non-recessed region 11d of the first side wall 11b form a step structure 112, the step structure 112 includes a first step 1121 and a second step 1122, and a distance between the first step 1121 and the second side wall 11c is smaller than a distance between the second step 1122 and the second side wall 11 c. The concave region 11a corresponds to the first step 1121, and the non-concave region 11d corresponds to the second step 1122.

Referring to fig. 2, in some embodiments, the cell receiving space 111 may include a first receiving space 111a between the first stepped portion 1121 and the second sidewall 11c and a second receiving space 111b between the second stepped portion 1122 and the second sidewall 11 c.

The battery cells 12 may include a first battery cell 121 and a second battery cell 122, where the first battery cell 121 is located in the first accommodating space 111a and is sized to fit the first accommodating space 111a, and the second battery cell 122 is located in the second accommodating space 111b and is sized to fit the second accommodating space 111 b.

Since the distance between the first step 1121 and the second side wall 11c is smaller than the distance between the second step 1122 and the second side wall 11c, the length of the second cell 122 is longer than the length of the first cell 121 in the direction of the line connecting the first side wall 11b and the second side wall 11c (refer to the X-axis shown in fig. 1).

Meanwhile, the circuit protection device 2 is located in the recess 11a (i.e. the side of the first step 1121 away from the second sidewall 11 b) and is connected to the housing 11. Thus, the circuit protection device 2 is located in a space where the recessed region 11a is avoided with respect to the non-recessed region 11 d.

In the embodiment of the present disclosure, the space under the circuit protection component 2 is occupied by the second stepped portion 1122 and the second battery cell 122 placed in correspondence with the second stepped portion. Compared with the related art, in the embodiment of the disclosure, the space below the circuit protection component 2 is not wasted, but is occupied by the second battery core 122 with a correspondingly increased length, and the increase of the length of the second battery core 122 is beneficial to improving the capacity of the battery, so that the higher requirements of the user on the battery capacity and the cruising ability of the terminal equipment are met.

Referring to fig. 3, in some embodiments, the first electrical core 121 may include a first current collecting portion 1211 and a first tab portion 1212, where the first tab portion 1212 is located at an end of the first current collecting portion 1211, and the first tab portion 1212 is electrically connected to the first current collecting portion 1211 and the electrical connector 3, respectively.

The first current collector 1211 is used to organically connect the positive and negative electrodes together to form a closed circuit, so that it is ensured that current can smoothly flow from the positive electrode to the negative electrode, chemical reaction is generated inside the battery, and thus electric power is generated. The first current collector 1211 is made of a conductive material, and can help electrons flow from one electrode to the other electrode, thereby generating current. Meanwhile, the first current collector 1211 may also help the ions inside the battery to be transferred between the electrodes, thereby ensuring that the battery can continuously perform chemical reactions.

During the operation of the battery, the first current collector 1211 also plays a role in heat dissipation, and heat generated inside the battery can be conducted to the outside through the first current collector 1211, so that the temperature inside the battery is ensured to be suitable, thereby improving the service life and safety of the battery.

The first tab portion 1212 is a key element for electrically connecting the battery, and the first tab portion 1212 is configured to draw current generated by the first current collecting portion 1211 and sequentially transmit the current to the electrical connector 3 and the circuit protection assembly 2.

The connection position between the first tab portion 1212 and the first current collecting portion 1211 is not particularly limited in the present disclosure, and may be located on a side of the first current collecting portion 1211 adjacent to the first side wall 11b, or may be located on a side of the first current collecting portion 1211 adjacent to the second side wall 11 c.

Referring to fig. 3, in some embodiments, the first current collector 1211 includes a first positive current collector 12111, a first negative current collector 12112, and a first separation film 12113, the first separation film 12113 being positioned between the first positive current collector 12111 and the first negative current collector 12112, the first separation film 12113 may prevent electrons from directly moving from the positive electrode to the negative electrode inside the battery, thereby avoiding an internal short circuit of the battery.

The first tab portion 1212 includes a first positive tab 1212a and a first negative tab 1212b, the first positive tab 1212a is electrically connected to the first positive current collector 12111, and the first negative tab 1212b is electrically connected to the first negative current collector 12112.

The first positive current collectors 12111 are electrically connected to one electrical connector 3 through the first positive electrode tab 1212a, the electrical connector 3 corresponds to the positive electrode of the battery, and the first negative current collectors 12112 are electrically connected to the other electrical connector 3 through the first negative electrode tab 1212b, the electrical connector 3 corresponds to the negative electrode of the battery. It should be noted that fig. 3 only illustrates the electrical connection between the first negative electrode ear 1212b and one electrical connector 3, and the electrical connection between the first positive electrode ear 1212a and the other electrical connector 3 is not illustrated in fig. 3.

The shape and size of the first positive electrode tab 1212a and the first negative electrode tab 1212b are not particularly limited, and may be set according to the structure and size of the first positive current collector 12111 and the first negative current collector 12112, for example, the first positive electrode tab 1212a and the first negative electrode tab 1212b may be flat, stepped, bent, and the like.

Referring to fig. 3, in some embodiments, the second battery cell 122 may include a second current collecting portion 1221 and a second pole ear 1222, where the second pole ear 1222 is located at an end of the second current collecting portion 1221, and the second pole ear 1222 is electrically connected to the second current collecting portion 1221 and the electrical connector 3, respectively.

The second current collecting part 1221 is used to organically connect the positive and negative electrodes together to form a closed circuit, so that it is ensured that current can smoothly flow from the positive electrode to the negative electrode, chemical reaction is generated inside the battery, and thus electric energy is generated. The second current collecting part 1221 is made of a conductive material, and can help electrons flow from one electrode to the other electrode, thereby generating current. Meanwhile, the second current collecting part 1221 may also help the ions inside the battery to be transferred between the electrodes, thereby ensuring that the battery can continuously perform chemical reactions.

In the battery operation process, the second current collecting part 1221 can also play a role in heat dissipation, and heat generated in the battery can be conducted to the outside through the second current collecting part 1221, so that the temperature in the battery is ensured to be proper, and the service life and the safety of the battery are improved.

The second pole ear 1222 is a key element for realizing electrical connection of the battery, and the second pole ear 1222 is used for leading out the current generated by the second current collecting part 1221 and sequentially transmitting the current to the electrical connector 3 and the circuit protection component 2.

The connection position between the second pole ear 1222 and the second current collecting portion 1221 is not particularly limited in the present disclosure, and may be located on a side of the second current collecting portion 1221 near the first side wall 11b, or may be located on a side of the second current collecting portion 1221 near the second side wall 11 c.

Referring to fig. 3, in some embodiments, the second current collecting part 1221 may include a second positive current collector 12211, a second negative current collector 12212, and a second separator 12213. The second separator 12213 is positioned between the second positive current collector 12211 and the second negative current collector 12212, and the second separator 12213 may prevent electrons from directly moving from the positive electrode to the negative electrode inside the battery, thereby avoiding internal short circuits of the battery.

The second tab 1222 includes a second positive tab 1222a and a second negative tab 1222b, the second positive tab 1222a is electrically connected to the second positive current collector 12211, and the second negative tab 1222b is electrically connected to the second negative current collector 12212.

The second positive current collectors 12211 are electrically connected to one electrical connector 3 through the second positive tab 1222a, the electrical connector 3 corresponds to the positive electrode of the battery, and the second negative current collectors 12212 are electrically connected to the other electrical connector 3 through the second negative tab 1222b, the electrical connector 3 corresponds to the negative electrode of the battery. It should be noted that fig. 3 only illustrates the electrical connection between the second negative tab 1222b and one electrical connector 3, and the electrical connection between the second positive tab 1222a and the other electrical connector 3 is not shown in fig. 3.

The shape and size of the second positive tab 1222a and the second negative tab 1222b are not particularly limited in the present disclosure, and may be set to match the structure and size of the second positive current collector 12211 and the second negative current collector 12212, for example, the second positive tab 1222a and the second negative tab 1222b may be flat, stepped, bent, or the like.

In other embodiments, the second positive current collector 12211 may be electrically connected to the first positive current collector 12111 in the first current collector 1211 through the second positive tab 1222a, and the first positive current collector 12111 is electrically connected to one electrical connector 3 through the first positive tab 1212a, so as to electrically connect the second positive current collector 12211 to the electrical connector 3.

Based on the same principle, the second negative current collector 12212 may be electrically connected to the first negative current collector 12112 in the first current collector 1211 through the second negative electrode tab 1222b, and since the first negative current collector 12112 is electrically connected to the other electrical connector 3 through the first negative electrode tab 1212b, the electrical connection between the second negative current collector 12212 and the electrical connector 3 is achieved.

Referring to fig. 3, in some embodiments, the circuit protection assembly 2 may include a circuit board 21 and at least one protection element 22, wherein the circuit board 21 is connected with the housing 11 and electrically connected with the electrical connector 3, and the at least one protection element 22 is electrically connected with the circuit board 21.

The circuit board 21 is a printed circuit board (Printed Circuit Board, PCB), and the size and thickness of the circuit board 21 can be set according to the connection relation of the protection element 22, heat dissipation requirement, and other parameters. In the thickness direction of the battery (refer to the Y-axis shown in fig. 2), the upper surface of the circuit board 21 is lower than the upper surface of the first stepped portion 1121 to ensure that the circuit board 21 does not protrude from the upper surface of the case 11, thereby avoiding an increase in the overall installation space of the battery due to the size of the circuit board 21.

The protection elements 22 are electrically connected to the circuit board 21, and the protection elements 22 may form a plurality of functional circuits to provide protection or detection for the battery, such as a power circuit, a protection circuit, an electric quantity detection circuit, etc. The power loop can adjust the output power of the battery, the protection loop can realize the functions of overcharge protection, overdischarge protection, overcurrent protection and the like of the battery, and the electric quantity detection circuit can realize the calculation of the electric quantity of the battery through the detection result of the related elements.

The type and number of the protection elements 22 are not particularly limited, and can be set in a matching manner according to the requirements of different functional circuits, such as a precision resistor, a Metal-Oxide-Semiconductor Field-Effect Transistor (MOS) tube, an electricity meter, a capacitor, an inductor, and the like.

In some embodiments, the circuit protection assembly 2 further includes a protective layer 23, the protective layer 23 covering the protective element 22. The protective layer 23 can avoid the adverse phenomena of collision, damage, short circuit and the like of the protective element 22 caused by external foreign matters.

In addition, the protection layer 23 may be made of a material that is easily heat-conductive, so as to facilitate heat dissipation of the protection element 22. On the one hand, the protection layer 23 can ensure that the heat generated by the plurality of protection elements 22 can be uniformly transferred to the whole protection layer 23, and then the protection layer 23 can quickly transfer the heat to the outside air.

On the other hand, the protection layer 23 may balance the temperature of each area on the circuit board 21, so as to reduce the temperature difference between the plurality of protection elements 22, for example, the protection elements 22 in the first area of the circuit board 21 are more, the protection elements 22 in the second area are less, and the heat generated by the protection elements 22 in the first area can be transferred to the second area via the protection layer 23, so that the temperatures of each area of the circuit board 21 are substantially consistent, which is beneficial to improving the service life of the circuit board 21.

The protective layer 23 may cover the entire area of the circuit board 21 and is connected to the circuit board 21. The protective layer 23 may cover only a partial area of the circuit board 21 and be connected to the circuit board 21.

The material of the protective layer 23 is not particularly limited in this disclosure, for example, the material of the protective layer 23 is plastic. The protective layer 23 made of plastic material can be connected and fixed with the circuit board 21 by injection molding.

Referring to fig. 4, in some embodiments, the second step 1122 has a through hole 1122a, with the through hole 1122a being configured to receive the electrical connector 3. The electrical connector 3 passes through the through hole 1122a from the outside of the second step portion 1122 into the inside of the housing 11, and is electrically connected to the first tab portion 1212 and the second tab portion 1222.

The through-hole 1122a has a sealing member to prevent the electrolyte inside the case 11 from leaking out of the case 11 from the through-hole 1122a, thereby causing waste of the electrolyte or contamination of the surrounding environment of the battery.

In some embodiments, the circuit protection assembly 2 is bonded to the housing 11. For example, an adhesive layer (such as glue) exists between the circuit protection component 2 and the housing 11, or the circuit protection component 2 and the housing 11 are connected by injection molding or other process methods.

The specific position where the circuit protection module 2 is bonded to the housing 11 is not limited in the present disclosure, and at least one of the circuit board 21 and the housing 11 and the protection element 22 and the housing 11 may be bonded.

Based on the same conception, the embodiments of the present disclosure also provide a terminal device, which may include a battery as in the above embodiments.

The terminal device referred to in the present disclosure may also be referred to as a terminal, a mobile terminal, an electronic device, a User Equipment (UE), or the like. The terminal device may be a smart Phone (Mobile Phone), a tablet pc, a notebook computer, a wearable device (e.g. a smart watch), or may be a professional photographing device such as a digital camera, a single-lens/micro-lens, a pan-tilt camera, a motion camera, or an unmanned aerial vehicle, or may be a device such as an automobile or a mechanical arm that needs to be powered by a battery. It should be understood that the specific technology and specific device configuration employed by the terminal device are not specifically limited by the present disclosure. In the description of the above embodiments, the mobile phone is taken as an example, but the present disclosure is not limited thereto.

The battery of the terminal equipment reduces the volume of the idle space, and under the condition that the volume of the battery is the same, the further increase of the battery capacity can be realized, so that the design requirement of the large capacity of the battery can be realized, or under the condition that the volume of the battery is the same, the whole volume of the battery can be reduced, and the miniaturization and the light and thin of the battery are realized.

In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

It is understood that the term "plurality" in this disclosure means two or more, and other adjectives are similar thereto. "and/or" describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate that there are three cases of a alone, a and B together, and B alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It is further understood that the terms "first," "second," and the like are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the expressions "first", "second", etc. may be used entirely interchangeably. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.

It will be further understood that the terms "center," "longitudinal," "transverse," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present embodiments and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operate in a particular orientation.

It will be further understood that the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or in communication with each other, directly connected, without any other elements present therebetween, indirectly connected via an intervening medium, or in communication between two elements, or in an interaction relationship between two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

It will be further understood that although operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims (12)

1. A battery, comprising:

The battery cell assembly (1) is used for storing electric energy, the battery cell assembly (1) comprises a shell (11) and a battery cell (12), a battery cell accommodating space (111) capable of accommodating the battery cell (12) is formed in the shell (11) in a hollow mode, the battery cell (12) is arranged in the battery cell accommodating space (111), and a concave area (11 a) concave towards the inside of the shell (11) is formed on the outer surface of the shell (11);

The circuit protection component (2) is used for providing circuit protection for the battery cell (12), and the circuit protection component (2) is at least partially arranged in the concave area (11 a) and is connected with the shell (11);

and the electric connecting piece (3) is electrically connected with the electric core (12) and the circuit protection component (2) respectively.

2. The battery of claim 1, wherein the battery is configured to provide the battery with a plurality of cells,

The shape and size of the circuit protection component (2) and the concave region (11 a) are matched, so that the circuit protection component (2) can be arranged in the concave region (11 a) completely.

3. The battery of claim 1, wherein the battery is configured to provide the battery with a plurality of cells,

The concave region (11 a) is arranged near the connection part of the electric connecting piece (3) and the electric core (12).

4. The battery of claim 1, wherein the battery is configured to provide the battery with a plurality of cells,

The casing (11) shape is the cuboid, casing (11) have relative first lateral wall (11 b) and second lateral wall (11 c), first lateral wall (11 b) are provided with sunken district (11 a), sunken district (11 a) with non-sunken district (11 d) of first lateral wall (11 b) form step structure (112), step structure (112) include first ladder portion (1121) and second ladder portion (1122), first ladder portion (1121) with the distance of second lateral wall (11 c) is less than second ladder portion (1122) with the distance of second lateral wall (11 c).

5. The battery of claim 4, wherein the battery is provided with a plurality of electrodes,

The battery cell accommodation space (111) includes a first accommodation space (111 a) between the first step portion (1121) and the second side wall (11 c) and a second accommodation space (111 b) between the second step portion (1122) and the second side wall (11 c);

The battery cell (12) comprises a first battery cell (121) and a second battery cell (122), wherein the first battery cell (121) is located in the first accommodating space (111 a) and is matched with the first accommodating space (111 a) in size, and the second battery cell (122) is located in the second accommodating space (111 b) and is matched with the second accommodating space (111 b) in size.

6. The battery of claim 5, wherein the battery is configured to provide the battery with a battery cell,

The first battery cell (121) comprises a first current collecting part (1211) and a first lug part (1212), the first lug part (1212) is positioned at the end part of the first current collecting part (1211) close to the first side wall (11 b), and the first lug part (1212) is respectively and electrically connected with the first current collecting part (1211) and the electric connecting piece (3).

7. The battery of claim 5, wherein the battery is configured to provide the battery with a battery cell,

The second battery cell (122) comprises a second current collecting part (1221) and a second electrode lug (1222), the second electrode lug (1222) is positioned at the end part of the second current collecting part (1221), and the second electrode lug (1222) is electrically connected with the second current collecting part (1221) and the electric connecting piece (3) respectively.

8. The battery of claim 4, wherein the battery is provided with a plurality of electrodes,

The second step portion (1122) has a through hole (1122 a), the through hole (1122 a) being for accommodating the electrical connector (3).

9. The battery of claim 1, wherein the battery is configured to provide the battery with a plurality of cells,

The circuit protection assembly (2) comprises a circuit board (21) and at least one protection element (22), wherein the circuit board (21) is connected with the shell (11) and is electrically connected with the electric connecting piece (3), and the at least one protection element (22) is electrically connected with the circuit board (21).

10. The battery of claim 9, wherein the battery is configured to provide the battery with a plurality of cells,

The circuit protection assembly (2) further comprises a protective layer (23), the protective layer (23) covering the protective element (22).

11. The battery of claim 1, wherein the battery is configured to provide the battery with a plurality of cells,

The circuit protection component (2) is adhered to the shell (11).

12. A terminal device, characterized in that it comprises a battery according to any of claims 1-11.