Battery protection method and device, equipment, storage medium and product

Abstract

The invention discloses a battery protection method, device and equipment, a storage medium and a product, and relates to the technical field of battery protection, and the battery protection method comprises the following steps: in a battery charging process, detecting a charging cut-off signal; when the charging cut-off signal is detected, the current charging current is detected; when the current charging current is greater than a preset charging current, continuously charging the battery with the preset charging current, and recording the charging duration of continuous charging; and when the charging duration of continuous charging reaches a preset duration, ending charging. Compared with the prior art, the protection current trickle charging is added after the high-current charging of the battery is finished, so that the problem that the over-voltage or lithium precipitation risk of a battery cell is caused under a serious condition due to the fact that a relatively large voltage difference is easily generated between different branches after the high-current charging is finished and then a relatively large ring current is generated between the branches is solved.

Description

Technical Field

[0001] The present invention relates to the field of battery protection technology, and in particular to a battery protection method, device, equipment, storage medium and product. Background Art

[0002] As electric vehicles demand more battery life, battery pack capacity continues to increase, and multi-pack solutions are increasingly becoming one of the technical options. Among them, the traditional multi-pack parallel solution is compatible with other electrical appliances in the vehicle and does not require major adjustments to the vehicle, so it has become the first choice in the automotive industry. Affected by the process, there are differences in the internal resistance of the battery pack branches. After high-current charging, it is easy to generate a large voltage difference between different branches, which in turn generates a large circulation between the branches. In severe cases, it will cause overvoltage or lithium deposition risks in the battery cells.

[0003] The above contents are only used to assist in understanding the technical solution of the present invention and do not constitute an admission that the above contents are prior art. Summary of the invention

[0004] The main purpose of the present invention is to provide a battery protection method, device, equipment, storage medium and product, aiming to solve the technical problem that a large voltage difference is easily generated between different branches after high-current charging, and then a large circulation current is generated between the branches, which in severe cases may cause overvoltage or lithium plating risks in the battery cells.

[0005] To achieve the above object, the present invention provides a battery protection method, the method comprising:

[0006] During the battery charging process, a charging cut-off signal is detected;

[0007] When the charging cut-off signal is detected, detecting the current charging current;

[0008] When the current charging current is greater than the preset charging current, continue charging the battery with the preset charging current, and record the charging time of the continued charging;

[0009] When the charging time of the continued charging reaches a preset time, the charging is terminated.

[0010] In one embodiment, before the step of detecting the charging cut-off signal during the battery charging process, the step includes:

[0011] Get the battery cell voltage;

[0012] When it is detected that the cell voltage reaches the preset voltage, the battery is charged with the preset charging current, and the charging time for continued charging is recorded.

[0013] In one embodiment, before the step of detecting the current charging current when the charging cut-off signal is detected, the step includes:

[0014] Acquire a corresponding charging MAP table according to the battery;

[0015] The current charging current corresponding to the battery cell voltage is obtained according to the charging MAP table.

[0016] In one embodiment, after the step of charging the battery with the preset charging current when detecting that the battery cell voltage reaches the preset voltage and recording the charging time for continued charging, the method further comprises:

[0017] When it is detected that the charging time does not reach the preset time, the method returns to the step of charging the battery with the preset charging current and recording the charging time for continued charging.

[0018] In one embodiment, after the step of detecting the charging cut-off signal during the battery charging process, the method further comprises:

[0019] When the charging cut-off signal is not detected, the process returns to the step of obtaining the cell voltage of the battery.

[0020] In one embodiment, after the step of detecting the current charging current when the charging cut-off signal is detected, the following steps are included:

[0021] When the current charging current is not greater than the preset charging current, charging is terminated.

[0022] In addition, to achieve the above object, the present invention also provides a battery protection device, the device comprising:

[0023] A first detection module, used for detecting a charging cut-off signal during battery charging;

[0024] A second detection module, configured to detect a current charging current when the charging cut-off signal is detected;

[0025] A control module, configured to, when the current charging current is greater than a preset charging current, continue charging the battery with the preset charging current and record the charging time for continued charging;

[0026] The end module is used to end the charging when the charging time reaches a preset time.

[0027] In addition, to achieve the above objectives, the present invention also proposes a battery protection device, which includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the battery protection method described above.

[0028] In addition, to achieve the above-mentioned purpose, the present invention also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the battery protection method described above are implemented.

[0029] In addition, to achieve the above-mentioned purpose, the present invention further provides a computer program product, wherein the computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the battery protection method described above are implemented.

[0030] One or more technical solutions proposed in the present invention have at least the following technical effects:

[0031] The present invention detects the charging cut-off signal during the battery charging process; when the charging cut-off signal is detected, the current charging current is detected; when the current charging current is greater than the preset charging current, the battery is continuously charged with the preset charging current, and the charging duration of the continued charging is recorded; and the charging is terminated when the charging duration of the continued charging reaches the preset duration. Since the present invention adds a protective current trickle charging after the battery is charged with a large current, compared with the prior art, the present invention solves the problem that a large pressure difference is easily generated between different branches after the high-current charging, and then a large circulating current is generated between the branches, which in severe cases may cause the risk of overvoltage or lithium deposition of the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0034] Figure 1 A schematic diagram of a flow chart of a first embodiment of a battery protection method of the present invention;

[0035] Figure 2 A brief flowchart of a first embodiment of a battery protection method according to the present invention is provided;

[0036] Figure 3 A charging MAP table of the battery protection method of the present invention;

[0037] Figure 4 This is a schematic diagram of the module structure of a battery protection device according to an embodiment of the present invention;

[0038] Figure 5 The figure is a schematic diagram of the device structure of the hardware operating environment involved in the battery protection method in the embodiment of the present invention.

[0039] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0040] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present invention and are not used to limit the present invention.

[0041] In order to better understand the technical solution of the present invention, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0042] The main solution of the embodiment of the present invention is: during the battery charging process, detecting the charging cut-off signal; when the charging cut-off signal is detected, detecting the current charging current; when the current charging current is greater than the preset charging current, continuing to charge the battery with the preset charging current and recording the charging time of continued charging; and ending the charging when the charging time of continued charging reaches the preset time.

[0043] In this embodiment, for the convenience of description, the following description is made with the identification controller as the execution subject.

[0044] Due to the existing technology, after the vehicle is charged with a large current, a large voltage difference is easily generated between different branches, which in turn generates a large circulation current between the branches. In severe cases, it may cause the risk of battery cell overvoltage or lithium deposition.

[0045] The present invention provides a solution, by detecting a charging cut-off signal during battery charging; when the charging cut-off signal is detected, detecting the current charging current; when the current charging current is greater than a preset charging current, continuing to charge the battery with the preset charging current, and recording the charging duration of continued charging; and ending charging when the charging duration of continued charging reaches a preset duration. The present invention adds a protective current trickle charge to the battery after high-current charging. Compared with the prior art, the present invention solves the problem that a large pressure difference is easily generated between different branches after high-current charging, and then a large circulating current is generated between the branches, which in severe cases may cause overvoltage or lithium deposition risks in the battery cell.

[0046] It should be noted that the execution subject of this embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device capable of realizing the above functions, etc. The controller is taken as an example to illustrate this embodiment and the following embodiments.

[0047] Based on this, an embodiment of the present invention provides a battery protection method, referring to Figure 2 , Figure 2 A schematic diagram of a flow chart of a first embodiment of a battery protection method of the present invention.

[0048] In this embodiment, the battery protection method includes steps S10 to S40:

[0049] Step S10: During the battery charging process, a charging cut-off signal is detected.

[0050] It should be noted that the charging cut-off signal may be a wired signal or a wireless signal.

[0051] It is understandable that the above charging end signal represents a signal that the vehicle has completed charging and is about to enter the end charging preparation stage.

[0052] In a specific implementation, during the battery charging process, it is detected whether the above-mentioned charging end signal is received. If so, it is determined that the vehicle is about to enter the end charging preparation stage; if not, it is determined that the vehicle is still in the charging stage.

[0053] Step S20, detecting the current charging current when the charging cut-off signal is detected.

[0054] It should be noted that the above current charging current can be 1C or 1.2C, which is not limited in this embodiment.

[0055] It is understandable that the above current charging current is the current charging current of the battery when the charging preparation stage ends.

[0056] In a specific implementation, when the charging cut-off signal is detected, it is determined that the vehicle enters the charging end preparation phase, and at this time, the current charging current is detected.

[0057] Step S30, when the current charging current is greater than the preset charging current, continue charging the battery with the preset charging current, and record the charging time of the continued charging.

[0058] It should be noted that the above-mentioned preset charging current can be 0.1C or 0.2C, which can be calibrated, and this embodiment does not limit this;

[0059] It should be noted that the above charging time can be 30S or 40S, which is not limited in this embodiment.

[0060] It is understandable that the preset charging current and the charging time mentioned above are different in different types of vehicles, and this embodiment does not limit this.

[0061] In a specific implementation, when it is detected that the current charging current is greater than the preset charging current, the current charging current is switched to the preset charging current to continue charging the battery, that is, trickle charging, and the charging time of continued charging is recorded.

[0062] Step S40, ending the charging when the charging time reaches a preset time.

[0063] It should be noted that the above-mentioned preset time length can be 30S or 40S, which can be calibrated, and this embodiment does not limit this.

[0064] It is understandable that the above preset duration is a charging duration set to protect the battery during trickle charging.

[0065] In a specific implementation, when it is detected that the battery continues to be charged for a period of time that reaches the above-mentioned preset period of time, the battery charging ends.

[0066] This embodiment provides a battery protection method, which detects a charging cutoff signal during battery charging; detects the current charging current when the charging cutoff signal is detected; continues to charge the battery with the preset charging current when the current charging current is greater than the preset charging current, and records the charging time for continued charging; and ends charging when the charging time for continued charging reaches the preset time. Since the voltages applied to different branches during charging are the same, the voltages of each branch are also the same at this time, and they are all dynamic voltages. When charging is completed, the voltage applied to the branch is removed, and each branch will drop from the dynamic voltage back to the static voltage. The amplitude of the dynamic voltage drop to the static voltage is different, and the smaller the current, the smaller the amplitude of the change. Therefore, it is necessary to maintain trickle charging for a period of time before charging ends to prevent the battery cell from suddenly depolarizing at the end of high-current charging, resulting in a large pressure difference between branches, and then generating a large circulating current.

[0067] For example, to help understand the implementation process of the battery protection method obtained by combining this embodiment with the above-mentioned embodiment 1, please refer to Figure 2 , Figure 2 A brief flow chart of the first embodiment of the battery protection method of the present invention is provided:

[0068] In a feasible implementation manner, before step S10, steps S11' to S12' may be further included:

[0069] Step S11 ′, obtaining the cell voltage of the battery.

[0070] It should be noted that the cell voltage may be 2.5V or 3.65V, which is not limited in this embodiment.

[0071] It is understandable that the above-mentioned cell voltage is the cell voltage of the battery being charged, and the cell voltages of different types of batteries are different.

[0072] In a specific implementation, the cell voltage of the battery is first obtained before detecting the charging end signal.

[0073] Step S12': when it is detected that the cell voltage reaches a preset voltage, the battery is charged with the preset charging current, and the charging time for continued charging is recorded.

[0074] In a specific implementation, when it is detected that the cell voltage reaches the preset voltage, the battery is charged with the preset charging current, and the charging time for continued charging is recorded.

[0075] For example, to help understand the implementation process of the battery protection method obtained by combining this embodiment with the above-mentioned embodiment 1, please refer to Figure 3 , Figure 3 The charging MAP table of the battery protection method of the present invention is:

[0076] In a feasible implementation manner, before step S20, steps S21' to S22' may be further included:

[0077] Step S21', obtaining a corresponding charging MAP table according to the battery.

[0078] It should be noted that the above charging MAP table may be a charging MAP table for a lithium iron phosphate battery or a charging MAP table for a nickel-hydrogen battery, and this embodiment does not impose any limitation on this.

[0079] It is understandable that the lithium iron phosphate battery charging MAP table is used in this embodiment, and the charging MAP table is different in different types of vehicles.

[0080] In a specific implementation, the corresponding charging MAP table is obtained according to the battery.

[0081] Step S22', obtaining the current charging current corresponding to the cell voltage according to the charging MAP table.

[0082] In a specific implementation, the current charging current corresponding to the cell voltage is obtained according to the charging MAP table.

[0083] In a feasible implementation manner, step S22' may further include step S221':

[0084] Step S221', when it is detected that the charging time does not reach the preset time, return to the step of charging the battery with the preset charging current and recording the charging time for continued charging.

[0085] In a specific implementation, when it is detected that the charging time has not reached the preset time, the battery is controlled to continue charging with the preset charging current, and the previous timing time is reset and restarted until the charging time reaches the preset time before the next step is performed.

[0086] In a feasible implementation manner, step S10 may further include step S13':

[0087] Step S13': when the charging cut-off signal is not detected, return to the step of obtaining the battery cell voltage.

[0088] In a specific implementation, when the charging termination signal is not detected, it indicates that the vehicle's preparation for charging termination has not been completed. In order to ensure the safety of the battery, it is necessary to return to the step of obtaining the cell voltage of the battery.

[0089] In a feasible implementation manner, step S20 may further include step S23':

[0090] Step S23', ending charging when the current charging current is not greater than the preset charging current.

[0091] In a specific implementation, when it is detected that the charging current is not greater than the preset charging current, it indicates that the vehicle's charging preparation is completed and the trickle charging is completed, and the battery charging task is now completed.

[0092] It should be noted that the above examples are only used to understand the present invention and do not constitute a limitation on the battery protection method of the present invention. More simple transformations based on this technical concept are all within the protection scope of the present invention.

[0093] The present invention also provides a battery protection device, please refer to Figure 4 , the battery protection device comprises:

[0094] A first detection module 10 is used to detect a charging cut-off signal during battery charging;

[0095] A second detection module 20, configured to detect a current charging current when the charging cut-off signal is detected;

[0096] The control module 30 is used to continue charging the battery with the preset charging current when the current charging current is greater than the preset charging current, and record the charging time of the continued charging;

[0097] The ending module 40 is used to end the charging when the charging time reaches a preset time.

[0098] The battery protection device provided by the present invention adopts the battery protection method in the above embodiment to solve the technical problem of battery protection. Compared with the prior art, the beneficial effects of the battery protection device provided by the present invention are the same as the beneficial effects of the battery protection method provided by the above embodiment, and other technical features in the battery protection device are the same as the features disclosed in the above embodiment method, which will not be repeated here.

[0099] The present invention provides a battery protection device, which includes: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the battery protection method in the above-mentioned embodiment 1.

[0100] Reference below Figure 5 , which shows a schematic diagram of the structure of a battery protection device suitable for implementing an embodiment of the present invention. The battery protection device in the embodiment of the present invention may include, but is not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 5 The battery protection device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0101] like Figure 5As shown, the battery protection device may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM: Read Only Memory) 1002 or a program loaded from a storage device 1003 to a random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the battery protection device are also stored. The processing device 1001, ROM1002, and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the battery protection device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a battery protection device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or have alternatively.

[0102] In particular, according to the embodiments disclosed in the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present invention include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through a communication device, or installed from the storage device 1003, or installed from the ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present invention are executed.

[0103] The battery protection device provided by the present invention adopts the battery protection method in the above embodiment to solve the technical problem of battery protection. Compared with the prior art, the beneficial effects of the battery protection device provided by the present invention are the same as the beneficial effects of the battery protection method provided by the above embodiment, and other technical features in the battery protection device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0104] It should be understood that the various parts disclosed in the present invention can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0105] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

[0106] The present invention provides a computer-readable storage medium having computer-readable program instructions (ie, computer program) stored thereon, and the computer-readable program instructions are used to execute the battery protection method in the above-mentioned embodiment.

[0107] The computer-readable storage medium provided by the present invention may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0108] The computer-readable storage medium may be included in the battery protection device; or may exist independently without being assembled into the battery protection device.

[0109] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the battery protection device, the battery protection device: detects a charging cut-off signal during battery charging; detects a current charging current when the charging cut-off signal is detected; continues to charge the battery with the preset charging current when the current charging current is greater than a preset charging current, and records the duration of continued charging; and terminates charging when the duration of continued charging reaches a preset duration.

[0110] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0111] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present invention. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0112] The modules involved in the embodiments of the present invention may be implemented by software or hardware, wherein the name of the module does not limit the unit itself in some cases.

[0113] The readable storage medium provided by the present invention is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned battery protection method, and can solve the technical problem of battery protection. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided by the present invention are the same as the beneficial effects of the battery protection method provided by the above-mentioned embodiment, and will not be repeated here.

[0114] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the steps of the battery protection method as described above are implemented.

[0115] The computer program product provided by the present invention can solve the technical problem of battery protection. Compared with the prior art, the beneficial effects of the computer program product provided by the present invention are the same as the beneficial effects of the battery protection method provided by the above embodiment, which will not be described in detail here.

[0116] The above descriptions are only some embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A battery protection method, characterized in that: The battery protection method comprises: During the battery charging process, a charging cut-off signal is detected; When the charging cut-off signal is detected, detecting the current charging current; When the current charging current is greater than the preset charging current, continue charging the battery with the preset charging current, and record the charging time of the continued charging; When the charging time of the continued charging reaches a preset time, the charging is terminated.

2. The battery protection method according to claim 1, characterized in that: In the battery charging process, before the step of detecting the charging cut-off signal, the method includes: Get the battery cell voltage; When it is detected that the cell voltage reaches the preset voltage, the battery is charged with the preset charging current, and the charging time for continued charging is recorded.

3. The battery protection method according to claim 2, characterized in that: Before the step of detecting the current charging current when the charging cut-off signal is detected, the method includes: Acquire a corresponding charging MAP table according to the battery; The current charging current corresponding to the battery cell voltage is obtained according to the charging MAP table.

4. The battery protection method according to claim 2, characterized in that: After the step of charging the battery with the preset charging current when detecting that the cell voltage reaches the preset voltage and recording the charging time for continued charging, the method further comprises: When it is detected that the charging time does not reach the preset time, the method returns to the step of charging the battery with the preset charging current and recording the charging time for continued charging.

5. The battery protection method according to claim 2, characterized in that: After the step of detecting the charging cut-off signal during the battery charging process, the method further comprises: When the charging cut-off signal is not detected, the process returns to the step of obtaining the cell voltage of the battery.

6. The battery protection method according to claim 1, characterized in that: After the step of detecting the current charging current when the charging cut-off signal is detected, the method further comprises: When the current charging current is not greater than the preset charging current, charging is terminated.

7. A battery protection device, characterized in that: The device comprises: A first detection module, used for detecting a charging cut-off signal during battery charging; A second detection module, configured to detect a current charging current when the charging cut-off signal is detected; A control module, configured to, when the current charging current is greater than a preset charging current, continue charging the battery with the preset charging current and record the charging time for continued charging; The end module is used to end the charging when the charging time reaches a preset time.

8. A battery protection device, characterized in that: The device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the battery protection method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the battery protection method according to any one of claims 1 to 6 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the steps of the battery protection method according to any one of claims 1 to 6 are implemented.

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