A lithium battery charging management method and system

Abstract

The present invention discloses a lithium battery charging management method and system, the method comprising: starting a battery daemon thread when the device is turned on, and monitoring the battery status in real time; judging the connection status between the battery and the adapter, and when the battery is connected to the adapter, judging the battery charging mode and adjusting the charging current according to the real-time monitored battery temperature, battery power and battery charging time; judging the battery charging mode comprises: judging whether to enter the abnormal charging mode according to the real-time monitored battery temperature; judging whether to enter the short recharge mode and the long recharge mode according to the real-time battery power, battery charging time and real-time charging current; judging whether to enter the charging interruption mode according to the device usage scenario. The present invention intelligently adjusts the charging current or stops charging according to the battery indicators such as the real-time monitored battery temperature, battery power and battery charging time, protects the battery without affecting the operation of the device, slows down the battery attenuation cycle and prolongs the battery life.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery management, and in particular relates to a lithium battery charging management method and system. Background Art

[0002] Some existing Android devices (such as smart POS devices) are equipped with removable batteries, and users connect them to adapters for a long time when using them, which may cause the lithium battery to alternate between charging and discharging states, which is not conducive to the long-term use of the battery; in addition, these Android devices may also be used in special scenarios such as high temperature and high cold. Long-term use in the charging state and in special scenarios such as high temperature and high cold will have a significant impact on the attenuation of battery capacity and service life.

[0003] Therefore, the present application proposes a lithium battery charging management method to extend the battery life. Summary of the invention

[0004] In order to overcome one or more of the above-mentioned technical defects, the present invention provides a lithium battery charging management method and system, which intelligently adjusts the charging current or stops charging according to real-time monitored battery indicators such as battery temperature, battery power and battery charging time, thereby protecting the battery without affecting the operation of the equipment, slowing down the battery attenuation cycle and extending the battery life.

[0005] In order to solve the above problems, the first aspect of the present invention provides a lithium battery charging management method, comprising:

[0006] Start the battery daemon thread when the device is turned on and monitor the battery status in real time;

[0007] Determine the connection status between the battery and the adapter. When the battery is connected to the adapter, adjust the charging current according to the real-time monitored battery temperature, battery power and battery charging time.

[0008] Furthermore, when the battery is connected to the adapter, the charging current is adjusted according to the real-time monitored battery temperature, battery power and battery charging time, including:

[0009] Get real-time battery temperature when the adapter is connected;

[0010] If the real-time battery temperature reaches the preset first battery temperature, the charging current is adjusted to 0;

[0011] If the real-time battery temperature reaches a preset second battery temperature, the charging current is increased or decreased according to the real-time battery temperature.

[0012] Furthermore, when the battery is connected to the adapter, the charging current is adjusted according to the real-time monitored battery temperature, battery power and battery charging time, and further includes:

[0013] When the adapter is connected, obtain the real-time battery power, battery charging time and real-time charging current;

[0014] If the real-time battery power reaches the preset first battery power, it is determined that the charging mode enters the short recharge mode;

[0015] If the real-time charging current reaches a preset first stop-charging current or the battery charging time reaches a preset first charging time, the charging current is adjusted to 0.

[0016] Furthermore, when the battery is connected to the adapter, the charging current is adjusted according to the real-time monitored battery temperature, battery power and battery charging time, and further includes:

[0017] In short recharge mode, obtain real-time battery power;

[0018] If the real-time battery power is less than the preset first battery power, the charging current is adjusted to restart charging.

[0019] Furthermore, when the battery is connected to the adapter, the charging current is adjusted according to the real-time monitored battery temperature, battery power and battery charging time, and further includes:

[0020] If the short recharge mode lasts for more than or equal to 24 hours, the charging mode is judged to enter the long recharge mode;

[0021] Get real-time battery power, battery charging time and real-time charging current;

[0022] If the real-time charging current reaches the preset second stop-charging current or the charging duration reaches the preset second charging duration, the charging current is adjusted to 0;

[0023] If the real-time battery power is less than the preset second battery power, the charging current is adjusted to restart charging.

[0024] Furthermore, it also includes:

[0025] Real-time monitoring of equipment usage scenarios;

[0026] If the device is in sleep mode, increase the charging current.

[0027] If the device is in a high-power scenario and the charging IC does not support charging path management, adjust the charging current to 0.

[0028] Furthermore, it also includes:

[0029] If the battery temperature or charging IC is abnormal, an alarm will be sent to the device system.

[0030] A second aspect of the present invention provides a lithium battery charging management system for implementing the above-mentioned lithium battery charging management method, comprising:

[0031] Battery status monitoring module, used to monitor and obtain battery power, battery temperature and battery charging time in real time;

[0032] The current adjustment module is used to adjust the charging current according to the real-time monitored battery temperature, battery power and battery charging time when the device is connected to the adapter.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The present invention discloses a lithium battery charging management method and system, the method comprising starting a battery daemon thread when a device is turned on, and monitoring the battery status in real time; judging the connection status between the battery and an adapter, and when the battery is connected to the adapter, adjusting the charging current according to the real-time monitored battery temperature, battery power and battery charging time; intelligently adjusting the charging current or stopping charging according to battery indicators such as the real-time monitored battery temperature, battery power and battery charging time, thereby protecting the battery without affecting the operation of the device, slowing down the battery attenuation cycle and extending the battery service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0036] Figure 1 This is a flow chart of the lithium battery charging management method described in Example 1;

[0037] Figure 2 This is a flow chart of step S2 of the lithium battery charging management method described in Example 1;

[0038] Figure 3 This is a flow chart of step S21 of the lithium battery charging management method described in Example 1;

[0039] Figure 4 This is a flow chart of step S22 of the lithium battery charging management method described in Example 1. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Example 1

[0045] like Figure 1-4 This embodiment discloses a lithium battery charging management method, including:

[0046] S1. When the device is turned on, the battery daemon thread is started and the battery status is monitored in real time.

[0047] S2. Determine the connection status between the battery and the adapter. When the battery is connected to the adapter, determine the battery charging mode and adjust the charging current based on the real-time monitored battery temperature, battery power and battery charging time. When the adapter is not connected, the device is discharged normally and in standby mode.

[0048] Specifically, step S2 includes:

[0049] S21. Determine whether to enter an abnormal charging mode based on the monitored real-time battery temperature.

[0050] S22: Determine whether to enter the short recharge mode or the long recharge mode according to the real-time battery power, battery charging time and real-time charging current.

[0051] S23: Determine whether to enter the charging interruption mode according to the device usage scenario.

[0052] In this embodiment, step S21 includes:

[0053] When the adapter is connected, obtain the real-time battery temperature monitored by the NTC.

[0054] If the real-time battery temperature reaches the preset 60°C or -10°C, the charging current is adjusted to 0, i.e. charging is stopped.

[0055] If the real-time battery temperature reaches the preset 10℃, 30℃ or 50℃, the charging current is increased or decreased according to the real-time battery temperature, thereby achieving better charging efficiency and dynamic charging current adjustment. The preset temperature is set according to the actual battery specifications. The optimal operating temperature range of lithium batteries is 15℃-35℃. Within this temperature range, lithium batteries can maintain better energy efficiency and charging capacity. When the real-time battery temperature is in this temperature range, the charging current is increased in real time; if the real-time battery temperature is not in this temperature range, that is, the real-time battery temperature is greater than 35℃ or lower than 15℃, the charging current is gradually reduced.

[0056] In this embodiment, step S21 further includes:

[0057] If the battery temperature is abnormal, such as the real-time battery temperature reaches the preset 60℃ or -10℃, or the charging IC is abnormal, an alarm is sent to the device system; and the charging IC is enabled to output current to maintain normal operation of the device, ensuring the normal operation of the device system.

[0058] In this embodiment, step S22 includes:

[0059] Get real-time battery level, battery charging time, and real-time charging current when an adapter is connected.

[0060] If the real-time battery power reaches 92% after charging, it is determined that the charging mode enters the short recharge mode.

[0061] If the real-time charging current reaches the preset first stop-charge current, or the battery charging time reaches the preset first charging time (i.e., the time of connecting the adapter reaches the first charging time), the charging current is adjusted to 0, that is, charging is stopped. In this embodiment, the first stop-charge current is set to 200mA, and the first charging time is set to 2h, which can be set according to actual needs.

[0062] In this embodiment, step S22 further includes:

[0063] In short recharge mode, obtain real-time battery power.

[0064] When the device system is in standby mode or connected to other peripherals, the battery power is consumed normally. If the real-time battery power is less than 92%, the charging current is adjusted to resume charging.

[0065] In this embodiment, step S22 further includes:

[0066] If the short recharge mode lasts for more than or equal to 24 hours, it is determined that the charging mode enters the long recharge mode.

[0067] Get real-time battery power, battery charging time, and real-time charging current.

[0068] If the real-time charging current reaches the preset second stop-charge current or the charging duration reaches the preset second charging duration (i.e., the time of connecting the adapter reaches the second charging duration), the charging current is adjusted to 0, i.e., charging is stopped. In this embodiment, the second stop-charge current is set to 200mA, and the second charging duration is set to 2h, which can be set according to actual needs.

[0069] In long recharge mode, when the device system is in standby mode or connected to other peripherals, the battery power is consumed normally. If the real-time battery power is less than 80%, the charging current is adjusted to resume charging.

[0070] In this embodiment, step S23 includes:

[0071] Real-time monitoring of device usage scenarios, including sleep scenarios, high-power scenarios, etc.

[0072] If the device is in a sleep mode, increase the charging current. When the device is in use while charging, part of the charging current output by the adapter is used to charge the battery, and the other part is used to maintain the device. Therefore, when the device is in a sleep mode, the power consumption is reduced. Increasing the charging current can improve the charging speed and efficiency, and complete the charging faster.

[0073] If the device is in a high-power scenario and the charging IC does not support charging path management, adjust the charging current to 0. Some devices are equipped with instantaneous high-power modules such as built-in printers and card readers. If the charging IC does not support path management (that is, the current consumed is all from the adapter and there is no supplement from the battery) and the consumption of these instantaneous high-power modules is greater than the rated power of the adapter, it is necessary to stop charging and switch to battery power only to avoid damaging the charging IC and adapter, which may cause machine equipment failure.

[0074] When connected to the adapter, the battery charging mode is determined based on the monitored battery indicators, and the charging interruption mode is switched to handle emergencies, and the charging abnormality mode is used to handle extreme situations such as battery damage. After disconnecting from the adapter (i.e. unplugging the adapter), the battery enters the discharge mode.

[0075] By real-time monitoring of multiple battery indicators including battery temperature, battery power and battery charging time, different charging modes are judged, and the charging current is intelligently adjusted to achieve intelligent battery protection in multiple application scenarios. It can protect the battery without affecting the operation of the equipment, slow down the battery degradation cycle and extend the battery life, thereby extending the service life of the equipment using this lithium battery charging management method and ensuring the equipment is in good working condition.

[0076] Example 2

[0077] The present embodiment discloses a lithium battery charging management system, which is used to implement the lithium battery charging management method described in Example 1. The lithium battery charging management system includes a battery status monitoring module and a current adjustment module. The battery status monitoring module is used to monitor and obtain the battery power, battery temperature and battery charging time in real time; the current adjustment module is used to adjust the charging current according to the real-time monitored battery temperature, battery power and battery charging time when the device is connected to the adapter.

[0078] Please refer to Example 1 for specific implementation details, which will not be repeated here.

[0079] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A lithium battery charging management method, characterized in that: include: Start the battery daemon thread when the device is turned on and monitor the battery status in real time; Determine the connection status between the battery and the adapter. When the battery is connected to the adapter, adjust the charging current according to the real-time monitored battery temperature, battery power and battery charging time.

2. The lithium battery charging management method according to claim 1, characterized in that: When the battery is connected to the adapter, the charging current is adjusted according to the real-time monitored battery temperature, battery power and battery charging time, including: Get real-time battery temperature when the adapter is connected; If the real-time battery temperature reaches the preset first battery temperature, the charging current is adjusted to 0; If the real-time battery temperature reaches a preset second battery temperature, the charging current is increased or decreased according to the real-time battery temperature.

3. The lithium battery charging management method according to claim 1, characterized in that: When the battery is connected to the adapter, the charging current is adjusted according to the real-time monitored battery temperature, battery power and battery charging time, and further includes: When the adapter is connected, obtain the real-time battery power, battery charging time and real-time charging current; If the real-time battery power reaches the preset first battery power, it is determined that the charging mode enters the short recharge mode; If the real-time charging current reaches a preset first stop-charging current or the battery charging time reaches a preset first charging time, the charging current is adjusted to 0.

4. The lithium battery charging management method according to claim 3, characterized in that: When the battery is connected to the adapter, the charging current is adjusted according to the real-time monitored battery temperature, battery power and battery charging time, and further includes: In short recharge mode, obtain real-time battery power; If the real-time battery power is less than the preset first battery power, the charging current is adjusted to restart charging.

5. The lithium battery charging management method according to claim 3, characterized in that: When the battery is connected to the adapter, the charging current is adjusted according to the real-time monitored battery temperature, battery power and battery charging time, and further includes: If the short recharge mode lasts for more than or equal to 24 hours, the charging mode is judged to enter the long recharge mode; Get real-time battery power, battery charging time and real-time charging current; If the real-time charging current reaches the preset second stop-charging current or the charging duration reaches the preset second charging duration, the charging current is adjusted to 0; If the real-time battery power is less than the preset second battery power, the charging current is adjusted to restart charging.

6. The lithium battery charging management method according to claim 1, characterized in that: Also includes: Real-time monitoring of equipment usage scenarios; If the device is in sleep mode, increase the charging current. If the device is in a high-power scenario and the charging IC does not support charging path management, adjust the charging current to 0.

7. The lithium battery charging management method according to claim 2, characterized in that: Also includes: If the battery temperature or charging IC is abnormal, an alarm will be sent to the device system.

8. A lithium battery charging management system, used to implement the lithium battery charging management method according to any one of claims 1 to 7, characterized in that: include: Battery status monitoring module, used to monitor and obtain battery power, battery temperature and battery charging time in real time; The current adjustment module is used to adjust the charging current according to the real-time monitored battery temperature, battery power and battery charging time when the battery is connected to the adapter.

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