CN115528386A

CN115528386A - Battery module, control method thereof, electronic device and storage medium

Info

Publication number: CN115528386A
Application number: CN202110705456.8A
Authority: CN
Inventors: 魏学文
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-12-27

Abstract

The present disclosure relates to a battery module, a control method thereof, an electronic device, and a storage medium, the battery module including: the electric core group; a first lug is arranged on the first end surface of the electric core group, and a second lug is arranged on the second end surface; the second end face is an opposite surface of the first end face; the first circuit is connected with the first lug and is used for charging the battery core group from the first end surface; and the second circuit is connected with the second pole lug and is used for charging the battery pack from the second end surface.

Description

Battery module, control method thereof, electronic device and storage medium

Technical Field

The present disclosure relates to the field of battery technologies, and in particular, to a battery module, a control method thereof, an electronic device, and a storage medium.

Background

Along with the continuous development of intelligent equipment, the requirement of a user on the charging speed of the intelligent equipment is higher and higher, and various quick charging technologies are generated.

However, with the rapid charging technique, the charging current is gradually increased, and the heat generated during charging is large due to the inevitable line impedance of the charging path, which not only causes high heat generation of the battery, but also affects the charging efficiency of the battery.

Disclosure of Invention

In view of this, the disclosed embodiments provide a battery module, a control method thereof, an electronic device and a storage medium.

According to a first aspect of the embodiments of the present disclosure, there is provided a battery module including:

the battery cell group comprises one battery cell or a plurality of battery cells which are arranged in a stacked mode;

a first pole lug is arranged on the first end surface of the electric core group, and a second pole lug is arranged on the second end surface; the second end face is an opposite surface of the first end face;

the first circuit is connected with the first tab and is used for charging the battery cell group from the first end face;

and the second circuit is connected with the second pole lug and is used for charging the battery pack from the second end surface.

In one embodiment, the first circuit is further configured to:

and power is supplied to the outside from the first end surface of the electric core group.

In one embodiment, the electric core group comprises:

the first protrusion comprises a first connecting part and a first bent part, the first connecting part is connected with the first end face, and the first bent part is connected with the first connecting part and is parallel to the first end face;

the second protrusion comprises a second connecting part and a second bending part, the second connecting part is connected with the second end face, and the second bending part is connected with the second connecting part and is parallel to the second end face.

In one embodiment, the first circuit comprises:

the first protection plate is arranged on the end face, far away from the first end face, of the first bending part, is connected with the first tab and is used for controlling the on and off of the first circuit;

the second circuit includes:

and the second protection plate is arranged on the end face of the second bending part far away from the second end face, is connected with the second pole lug and is used for controlling the on-off of the second circuit.

In one embodiment, the width of the first protection plate does not exceed the thickness of the electric core group;

and/or the presence of a gas in the gas,

the width of the second protection plate does not exceed the thickness of the electric core group.

In one embodiment, the first circuit comprises:

and the electricity meter is used for determining the electric quantity of the first circuit and/or the second circuit for charging the electric core group.

According to a second aspect of the embodiments of the present disclosure, there is provided a battery module control method including:

when detecting that the battery module is connected with an external power supply, controlling a first circuit and a second circuit of the battery module to be conducted, wherein the first circuit is connected with a first pole lug arranged on a first end face of the electric core group, the second circuit is connected with a second pole lug arranged on a second end face of the electric core group, and the second end face is the opposite surface of the first end face;

and the cell group is charged through the conducted first circuit and the conducted second circuit.

In one embodiment, the method further comprises:

controlling an electricity meter of the first circuit to detect voltage at two ends of the electric core group and first charging current on the first circuit;

determining a first charging capacity of the battery cell group based on the voltage;

calculating a second charging capacity for charging the cell group by the first circuit based on the first charging current;

and calculating the current charging capacity of the battery pack charged by the second circuit based on the first charging capacity and the second charging capacity.

In one embodiment, the method further comprises:

detecting a charging current of the first circuit and/or the second circuit;

and controlling the charging state of the cell group according to the charging current, wherein different charging states adopt different circuits to charge the cell group or adopt different charging modes to charge the cell group.

In one embodiment, the controlling the charging state of the battery cell group according to the charging current comprises at least one of the following steps:

when the sum of the charging currents of the first circuit and the second circuit is detected to be larger than a first threshold value, controlling the cell group to enter a charging state of simultaneously charging through the first circuit and the second circuit;

when the sum of the charging currents of the first circuit and the second circuit is detected to be smaller than a first threshold value and larger than a second threshold value, controlling the battery pack to enter a charging state of being charged through the first circuit alone;

when the sum of the charging currents of the first circuit and the second circuit is detected to be smaller than a first threshold value and larger than a second threshold value, controlling the battery pack to enter a charging state of being charged through the second circuit independently;

when the charging current which is charged through the first circuit alone is detected to be smaller than the second threshold value, the battery pack is controlled to enter a constant voltage charging mode through the first circuit alone;

and when the charging current which is charged through the second circuit alone is detected to be smaller than the second threshold value, controlling the battery pack to enter a constant voltage charging mode through the second circuit alone.

According to a third aspect of the embodiments of the present disclosure, there is provided an electronic apparatus including an apparatus body and the battery module described in any one of the above, the battery module being mounted in the apparatus body.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the battery module control method of any one of the above.

The battery module that this example embodiment provided through set up utmost point ear simultaneously at a pair of opposite surface of electric core group to and correspondingly set up first circuit and second circuit and be connected with an utmost point ear respectively, can realize carrying out heavy current charging to battery module, charge electric core group with this heavy current reposition of redundant personnel from two opposite surfaces of electric core group. This exemplary embodiment will carry out the heavy current reposition of redundant personnel that charges to battery module and charge simultaneously from two opposite terminal surfaces of electric core group, compare in carrying out heavy current charging to battery module from same terminal surface of electric core group, when guaranteeing the charge efficiency to battery module, improve because carry out the higher problem of local heating that heavy current charges and lead to from same terminal surface.

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 embodiments of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the embodiments of the disclosure.

Fig. 1 is a schematic view illustrating the structure of a battery module according to an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating the structure of a first circuit according to an exemplary embodiment;

FIG. 3 is a schematic diagram illustrating a second circuit configuration according to an exemplary embodiment;

fig. 4 is a schematic structural view illustrating another battery module according to an exemplary embodiment;

fig. 5 is a schematic flow diagram illustrating a battery module control method according to an exemplary embodiment;

fig. 6 is a schematic flow chart illustrating another battery module control method according to an exemplary embodiment;

fig. 7 is a schematic structural view illustrating still another battery module according to an exemplary embodiment;

fig. 8 is a block diagram illustrating a component structure of an electronic device according to an example embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with embodiments of the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosed embodiments, as detailed in the appended claims.

The terminology used in the embodiments of the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present disclosure. As used in the disclosed embodiments and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information in the embodiments of the present disclosure, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. 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 embodiments of the present disclosure. The word "if," as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination," depending on the context.

The disclosed battery module is a rechargeable battery, such as a lithium ion battery, a lead storage battery, a nickel-cadmium storage battery, a nickel-hydrogen storage battery or a solar battery, and can be applied to include: mobile phones, notebook computers, portable electric tools, and the like.

Fig. 1 is a schematic structural view illustrating a battery module 100 according to an exemplary embodiment, and as shown in fig. 1, the battery module 100 includes:

the battery pack 110 comprises one battery cell or a plurality of battery cells arranged in a stacked manner;

a first lug 1101 is arranged on the first end surface of the electric core group 110, and a second lug 1102 is arranged on the second end surface; the second end face is an opposite surface of the first end face;

a first circuit 120 connected to the first tab 1101 and used for charging the battery pack 110 from the first end surface;

and the second circuit 130 is connected with the second pole ear 1102 and is used for charging the electric core pack 110 from the second end surface.

It is to be understood that the structure illustrated in the present embodiment does not constitute a specific limitation on the battery module 100. In other embodiments of the present disclosure, the battery module 100 may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components.

In the present exemplary embodiment, the battery pack 110 may include one battery cell, or, when a plurality of battery cells are included, a plurality of battery cells may be disposed in parallel and connected in parallel and/or in series.

In an exemplary embodiment, all the cells of the cell group 110 may be connected to form a rectangular parallelepiped, a cylinder, or the like.

The first end surface and the second end surface of the electric core pack 110 may be opposite surfaces of the electric core pack 110. For example, the electric core assembly 110 is a cuboid, and the first end surface and the second end surface of the electric core assembly 110 may be two end surfaces at two ends in the width direction of the cuboid, two end surfaces at two ends in the length direction of the cuboid, or two end surfaces at two ends in the height direction of the cuboid; for another example, the electric core assembly 110 is a cylinder, and the first end surface and the second end surface of the electric core assembly 110 may be two bottom surfaces of the cylinder.

In the present exemplary embodiment, a first tab 1101 is disposed on the first end surface of the electric core set 110, and the first tab 1101 is used for leading out the electrodes of the electric core set 110. The first circuit 120 is connected to the first tab 1101 for charging the electric core pack 110 from the first end surface. For example, the first tab 1101 includes a first positive tab for leading out a first positive electrode of the electric core assembly 110 and a first negative tab for leading out a first negative electrode of the electric core assembly 110, a first end of the first circuit 120 is connected to the first positive tab, and a second end of the first circuit 120 is connected to the first negative tab. Therefore, when charging, a first charging loop is formed by the first positive electrode lug, the external power supply, the first circuit, the first negative electrode lug and the electric core group together, and the electric core group is charged.

Meanwhile, the second end face of the electric core set 110 is provided with a second pole ear 1102, and the second pole ear 1102 is also used for leading out the electrodes of the electric core set 110. The second circuit 130 is connected to the second pole ear 1102 for charging the electric core pack 110 from the second end surface. For example, the second tab 1102 includes a second positive tab and a second negative tab, the second positive tab is used for leading out a second positive electrode of the electric core assembly 110, the second negative tab is used for leading out a second negative electrode of the electric core assembly 110, the first end of the second circuit 130 is connected with the second positive tab, and the second end of the second circuit 130 is connected with the second negative tab, so that, when charging, the second positive tab, the external power supply, the second circuit, the second negative tab and the electric core assembly jointly form a second charging loop, thereby realizing charging of the electric core assembly.

In one exemplary embodiment, the first circuit 120 includes: the first charging circuit 1201 charges the first circuit 120 from the first end surface to the electric core pack 110 through the first charging circuit 1201.

In one exemplary embodiment, the second circuit 130 includes: and the second charging circuit 1301, and the second circuit 130 charges the electric core set 110 from the second end surface through the second charging circuit 1301.

Here, the battery module 100 may charge the electric core pack 110 from the first end surface of the electric core pack 110 through the first circuit 120 and/or charge the electric core pack 110 from the second end surface of the electric core pack 110 through the second circuit 130.

The battery module that this example embodiment provided sets up utmost point ear simultaneously at a pair of opposite surface of electric core group to and corresponding first circuit of setting and second circuit are connected with an utmost point ear respectively, in order to realize simultaneously charging electric core group through first circuit and second circuit simultaneously, when carrying out heavy current charging to battery module, charges electric core group with this heavy current reposition of redundant personnel from two opposite surfaces of electric core group. This exemplary embodiment will carry out the heavy current reposition of redundant personnel that charges to battery module and charge simultaneously from two opposite terminal surfaces of electric core group, compare in carrying out heavy current charging to battery module from same terminal surface of electric core group, when guaranteeing the charge efficiency to battery module, improve because carry out the higher problem of local heating that heavy current charges and lead to from same terminal surface.

In an exemplary embodiment, the first circuit 120 is further configured to: the power is supplied from the first end surface of the electric core set 110.

In this embodiment, the electric core set 110 supplies power to the outside, and includes: power is supplied to the main board and/or other components of the electronic device in which the battery module 100 is located.

It is understood that the second circuit 130 may also be used to: power is supplied from the second end surface of the electric core pack 110.

Here, the battery module 100 may supply power from the first end surface of the electric core pack 110 to the outside through the first electric circuit 120, and/or supply power from the second end surface of the electric core pack 110 to the outside through the second electric circuit 130.

In an exemplary embodiment, considering that the discharging speed requirement of the electric core pack 110 for supplying power to the outside is not as strict as the charging speed requirement, the electric core pack 110 is charged through the first and second circuits 120 and 130, and at the same time, power is supplied to the outside only through the first circuit 120.

Fig. 2 is a schematic diagram illustrating a structure of a first circuit 120 according to an exemplary embodiment, where, as shown in fig. 2, the first circuit 120 includes: the first discharging circuit 1202 and the first circuit 120 supply power from the first end surface of the electric core group 110 through the first discharging circuit 1202.

Fig. 3 is a schematic diagram illustrating a structure of a second circuit 130 according to an exemplary embodiment, where, as shown in fig. 3, the second circuit 130 includes: and the second discharging circuit 1302, the second circuit 130 supplies power from the second end surface of the electric core assembly 110 through the second discharging circuit 1302.

Fig. 4 is a schematic structural view illustrating another battery module 100 according to an exemplary embodiment, and as shown in fig. 4, in an exemplary embodiment, the electric core pack 110 includes:

the first bump 1103 includes a first connection portion 11031 and a first bending portion 11032, the first connection portion 11031 is connected to the first end surface, and the first bending portion 11032 is connected to the first connection portion 11031 and parallel to the first end surface;

the second protrusion 1104 includes a second connection portion 11041 and a second bending portion 11042, the second connection portion 11041 is connected to the second end surface, and the second bending portion 11042 is connected to the second connection portion 11041 and parallel to the second end surface.

Here, the first bending portion 11032 is formed by bending the extending section of the first connection portion 11031 toward the first end surface side, and after bending, the first bending portion 11032 forms a first included angle with the first end surface, where the first included angle is smaller than a preset threshold, for example, the first bending portion 11032 is parallel to the first end surface.

The second bending portion 11042 is formed by bending the extending section of the second connecting portion 11041 toward the second end surface, after bending, a second included angle is formed between the second bending portion 11042 and the second end surface, and the second included angle is smaller than a preset threshold, for example, the second bending portion 11042 is parallel to the second end surface.

In the related art, after the encapsulation of the electric core assembly 110 is completed, a protrusion is formed on each of the first end surface and the second end surface, and the protrusion is connected to the first end surface or the second end surface and is perpendicular to the first end surface and/or the second end surface. Due to the existence of the protrusion, the length of the protrusion also directly prolongs the length of the electric core group 110, and correspondingly, the volume of the electric core group 110 is also increased, which is not beneficial to the miniaturization installation requirement of the electric core group.

In order to reduce the elongation of the protrusions to the length of the electric core assembly 110, in the present embodiment, the protrusions are bent toward the first end surface or the second end surface, respectively, to shorten the extension length of the protrusions toward the electric core assembly 110 in the direction perpendicular to the first end surface or the second end surface. Specifically, after bending the protrusions at the two ends of the electric core assembly 110, a first protrusion 1103 connected to the first end surface and a protrusion 1104 connected to the second end surface are formed, wherein the first protrusion 1103 includes a first connection portion 11031 that is not bent and a first bent portion 11032 that is bent, and the first bent portion 11032 that is bent remains connected to the first connection portion 11031 and is bent from being originally perpendicular to the first end surface to being parallel to the first end surface; the second protrusion 1104 includes a second connection portion 11041 that is not bent and a second bent portion 11042 that is bent, the second bent portion 11042 that is bent still remains connected to the second connection portion 11041 and is bent from being originally perpendicular to the second end surface to being parallel to the second end surface.

Referring to fig. 4, the first tab 1101 is disposed on the first bending portion 11032, and the second tab 1102 is disposed on the second bending portion 11042.

With continued reference to fig. 4, the first circuit 120 includes:

a first protection plate 1203, disposed on an end surface of the first bending portion 11032 away from the first end surface, connected to the first tab 1101, and configured to control on and off of the first circuit 120;

the second circuit 130 includes:

the second protection plate 1303 is disposed on the end surface of the second bending portion 11042 away from the second end surface, and connected to the second tab 1102 for controlling the on/off of the second circuit 130.

In this embodiment, the first protection plate 1203 is disposed in a plane parallel to the first end surface, and an orthogonal projection of the first protection plate 1203 on the first end surface is included in the first end surface.

The second protection plate 1303 is disposed in a plane parallel to the second end face, and an orthographic projection of the second protection plate 1303 on the second end face is contained in the second end face.

In one exemplary embodiment, the width of the first protective plate 1203 does not exceed the thickness of the electric core pack 110;

and/or the presence of a gas in the gas,

the width of the second protective plate 1303 does not exceed the thickness of the electric core assembly 110.

In this way, it is ensured that the volume of the entire electric core group 110 is not affected in the width and thickness directions by the arrangement of the first protection plate 1203 or the second protection plate 1303. Here, the width of the electric core pack 110 corresponds to the length of the first end surface or the second end surface, and the thickness corresponds to the width of the first end surface or the second end surface, and the length is the distance from the first end surface to the second end surface.

In one exemplary embodiment, the first protective plate 1203 includes:

a first switch module, configured to turn on or off the first circuit 120 according to a first control signal;

the first detecting module is used for detecting the charging state, the discharging state and/or the temperature of the electric core group 110 in real time and generating a control signal based on the charging state, the discharging state and/or the temperature so as to switch on or switch off the first circuit 120.

In another exemplary embodiment, the first charging circuit 1201 and/or the first discharging circuit 1202 are provided on the first protective plate 1203.

In one exemplary embodiment, the second protection plate 1303 includes:

a second switch module, configured to turn on or off the second circuit 130 according to a second control signal;

and a second detection module for detecting the charging state, the discharging state and/or the temperature of the electric core assembly 110 in real time and generating a second control signal based on the charging state, the discharging state and/or the temperature to turn on or off the second circuit 130.

In another exemplary embodiment, the second charging circuit 1301 and/or the second discharging circuit 1302 are disposed on the second protection plate 1303.

In one exemplary embodiment, the first circuit 120 includes:

and the electricity meter 120 is used for determining the electric quantity of the first circuit 120 and/or the second circuit 130 for charging the electric core group 110.

In the present embodiment, the electricity meter 120 detects the current of the current detecting element in the first circuit 120, and determines the amount of electricity charged to the electric core group 110 according to the current.

Here, the current sensing element may be a wire in the first circuit 120.

Fig. 5 is a diagram illustrating another battery module control method according to an exemplary embodiment, and as shown in fig. 5, the battery module control method includes:

step 101: when detecting that the battery module is connected with an external power supply, controlling a first circuit and a second circuit of the battery module to be conducted, wherein the first circuit is connected with a first pole lug arranged on a first end face of the electric core group, the second circuit is connected with a second pole lug arranged on a second end face of the electric core group, and the second end face is the opposite surface of the first end face;

step 102: and the cell group is charged through the conducted first circuit and the conducted second circuit.

In an exemplary embodiment, when the main board of the electronic device where the battery module is located detects that the battery module is powered on by the external power source, the first circuit and the second circuit of the battery module are controlled to be both turned on, so that the external power source can simultaneously charge the electric core pack from the first end of the electric core pack through the first circuit and charge the electric core pack from the second end of the electric core pack through the second circuit.

Thereby, when carrying out heavy current to battery module and charging, can charge the electric core group from two opposite surfaces of electric core group with this heavy current reposition of redundant personnel, compare and carry out heavy current charging to battery module in the same terminal surface of following electric core group, when guaranteeing the charge efficiency to battery module, improve because the local higher problem of generating heat that leads to of carrying out heavy current charging from the same terminal surface of electric core group.

In an exemplary embodiment, as illustrated in fig. 6, the method further includes:

step 103: controlling an electricity meter of the first circuit to detect voltage at two ends of the electric core group and first charging current on the first circuit;

step 104: determining a first charging capacity of the cell group based on the voltage;

step 105: calculating a second charging capacity for charging the cell group by the first circuit based on the first charging current;

step 106: and calculating the current charging capacity of the battery pack charged by the second circuit based on the first charging capacity and the second charging capacity.

In the embodiment, on one hand, the voltage at two ends of the electric core group is detected through an electricity meter in the first circuit, and the first charging electric quantity of the electric core group is determined according to the preset corresponding relation between the voltage and the residual electric quantity; on the other hand, according to the detected first charging current on the first circuit, calculating a second charging electric quantity for charging the cell group by the first circuit through integral accumulation; and finally, calculating the current charging capacity for charging the cell group by the second circuit based on the first charging capacity and the second charging capacity. The control method of the battery module can respectively determine the charging electric quantity of the first circuit and the second circuit to the battery cell group, and quantizes the contribution of the two charging circuits in the charging process, so as to be beneficial to further optimizing the circuits and the control method.

In one exemplary embodiment, the method further comprises:

step 107: detecting a charging current of the first circuit and/or the second circuit;

step 108: and controlling the charging state of the cell group according to the charging current, wherein different charging states adopt different circuits to charge the cell group or adopt different charging modes to charge the cell group.

In this embodiment, according to the current total charging current of the electric core group, the charging state of the electric core group is controlled, so that the maximum charging circuit of the electric core group is controlled while the electric core group is rapidly charged, and the safety of the electric core group is ensured.

In an exemplary embodiment, the step 108 includes at least one of:

when the sum of the charging currents of the first circuit and the second circuit is detected to be larger than a first threshold value, controlling the battery pack to enter a charging state of being charged through the first circuit and the second circuit simultaneously;

In this embodiment, according to the comparison between the sum of the charging currents of the first circuit and the second circuit and the preset threshold, the charging state of the electric core group charged through the first circuit and/or the second circuit is controlled, so as to ensure that the electric core group can reach the electric quantity maximization and the service life maximization in a safe state.

The embodiment of the invention also provides electronic equipment which comprises an equipment body and the battery module provided in one or more technical schemes, wherein the battery module is arranged in the equipment body.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the battery module control method provided in one or more of the foregoing technical solutions.

One specific example is provided below in connection with any of the embodiments described above:

as shown in fig. 7, the present exemplary embodiment charges the electric core pack from the head (i.e., the first end surface) and the tail (i.e., the second end surface) of the electric core pack through the charge management circuit (i.e., the first circuit) of the main board and the charge management circuit (i.e., the second circuit) of the small board, respectively, and is applicable to all the dual-charge fast-charging scheme designs. Therefore, by controlling the head and the tail to be charged simultaneously, the physical impedance of the battery cell can be reduced by half, and the charging speed is improved.

In the specific implementation process, for a 120W single cell of the battery module, the head protection plate and the tail protection plate (i.e., the first protection plate and the second protection plate) can be split into 60W, including double ICs and double MOS.

For a 67W single cell battery module, the head protection plate and the tail protection plate (i.e., the first protection plate and the second protection plate) can be split into 33W, including double ICs and double MOSs.

The head protection plate is provided with an electricity meter and is used for charging and discharging; the tail protection plate is only used for charging and has no ammeter. The head protection plate and the tail protection plate are mutually independent and do not influence each other.

Simultaneously, in the aspect of the structure, buckle the crest (i.e. first protrusion and second protrusion) of electric core group, the protection shield of being convenient for can transversely place, reduces the shared volume of whole battery module. Wherein, the width of the protection plate does not exceed the thickness of the electric core group.

In addition, the following description will be given of the charging control of the battery module, taking the battery module as a 67W single cell as an example:

step 1: the charging management circuit of the mainboard and the charging management circuit of the small plate work simultaneously, and the charging is carried out through the head and the tail of the battery module, and the current distribution proportion is 1:1;

and the electricity meter calculates the current flowing into the battery module by accessing the current output from the register corresponding to the charge, and calculates the electric quantity in the battery charging mode by combining an OCV algorithm of the electricity meter.

Step 2: when the charging current is less than 6A, the charging management circuit of the small plate is closed, and the charging management circuit of the main board is kept unchanged; when the coulometer detects that the output current of the register corresponding to the chargeable charge is 0, the head charging mode is switched to through a smoothing algorithm, and the charging electric quantity is calculated;

and step 3: and when the charging current is less than 2A, switching to the platform PMIC for charging to realize charging of the hardware CV.

Through experimental comparison, it is found that, compared with the technical scheme of charging from only one end face in the related art, the technical scheme of charging from two opposite end faces of the electric core group by using the embodiment has the following beneficial effects:

the battery capacity gain is more than or equal to 2 percent;

the charging speed is increased by more than or equal to 5min;

the charging temperature rise is low, and the temperature control is not triggered during the whole charging process;

the protection function is more reliable, and the current of the two protection plates is reduced to half of the original current.

With regard to the electronic device in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.

FIG. 8 is a block diagram illustrating an electronic device in accordance with an example embodiment. For example, the electronic device may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.

Referring to fig. 8, the electronic device may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the electronic device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the electronic device. Examples of such data include instructions for any application or method operating on the electronic device, contact data, phonebook data, messages, pictures, videos, and the like. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 806 provides power to various components of the electronic device. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for an electronic device.

The multimedia component 808 includes a screen that provides an output interface between the electronic device and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the electronic device is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the electronic device is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the electronic device. For example, the sensor assembly 814 may detect an open/closed state of the electronic device, the relative positioning of components, such as a display and keypad of the electronic device, the sensor assembly 814 may also detect a change in the position of the electronic device or a component of the electronic device, the presence or absence of user contact with the electronic device, orientation or acceleration/deceleration of the electronic device, and a change in the temperature of the electronic device. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the electronic device and other devices. The electronic device may access a wireless network based on a communication standard, such as WiFi,4G or 5G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the electronic device may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as the memory 804 including instructions, executable by the processor 820 of the electronic device to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosed embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the embodiments of the disclosure following, in general, the 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 disclosed embodiments being indicated by the following claims.

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

Claims

1. A battery module, comprising:

the battery pack comprises one battery cell or a plurality of battery cells which are stacked;

a first lug is arranged on the first end surface of the electric core group, and a second lug is arranged on the second end surface; the second end face is an opposite surface of the first end face;

the first circuit is connected with the first lug and is used for charging the battery core group from the first end surface;

and the second circuit is connected with the second pole lug and is used for charging the electric core group from the second end surface.

2. The battery module of claim 1, wherein the first circuit is further configured to:

3. The battery module according to claim 1, wherein the electric core pack comprises:

4. The battery module according to claim 3,

the first circuit includes:

the second circuit includes:

5. The battery module according to claim 4,

the width of the first protection plate does not exceed the thickness of the electric core group;

and/or the presence of a gas in the gas,

6. The battery module according to claim 1, wherein the first circuit comprises:

7. A battery module control method is characterized by comprising the following steps:

when detecting that the battery module is connected with an external power supply, controlling a first circuit and a second circuit of the battery module to be conducted, wherein the first circuit is connected with a first pole lug arranged on a first end face of a battery core group, the second circuit is connected with a second pole lug arranged on a second end face of the battery core group, and the second end face is the opposite surface of the first end face;

8. The method of claim 7, further comprising:

determining a first charging capacity of the cell group based on the voltage;

9. The method of claim 7, further comprising:

detecting a charging current of the first circuit and/or the second circuit;

10. The method according to claim 9, wherein the controlling the charging state of the battery pack according to the charging current comprises at least one of:

when the charging current which is charged through the second circuit alone is detected to be smaller than the second threshold value, the battery pack is controlled to enter a constant voltage charging mode through the second circuit alone.

11. An electronic apparatus, characterized by comprising an apparatus body and the battery module according to any one of claims 1 to 6, the battery module being mounted in the apparatus body.

12. A computer-readable storage medium on which a computer program is stored, the program implementing the battery module control method according to any one of claims 7 to 10 when executed by a processor.