CN-122001062-A - Battery charging method, electronic equipment and battery management device

CN122001062ACN 122001062 ACN122001062 ACN 122001062ACN-122001062-A

Abstract

The present disclosure provides a battery charging method, an electronic device, and a battery management apparatus. When a battery charging event is monitored, determining a basic charging voltage corresponding to the recorded battery charging cycle times, correcting the basic charging voltage according to the current first temperature of the battery to obtain a corrected voltage matched with the first temperature, adjusting an external power supply to the current charging voltage of the battery to be the corrected voltage, monitoring the temperature of the battery in the battery power supply process, if the current temperature of the battery is monitored to be changed compared with the first temperature, correcting the basic charging voltage according to the current temperature of the battery to obtain the corrected voltage matched with the current temperature, and adjusting the external power supply to the current charging voltage of the battery to be the corrected voltage. By adjusting the charging voltage in a self-adaptive manner according to the accumulated aging degree of the battery and the change of the real-time temperature in the charging process, the damage to the battery caused by neglecting the aging of the battery and insufficient temperature adaptability can be avoided.

Inventors

LIANG XIAOJU
WANG JIAN

Assignees

北京雪地软件开发有限公司

Dates

Publication Date: 20260508
Application Date: 20260126

Claims (10)

1. A battery charging method, comprising: determining a base charging voltage corresponding to the recorded number of battery charging cycles when a battery charging event is monitored; Correcting the basic charging voltage according to the current first temperature of the battery to obtain a corrected voltage matched with the first temperature, and adjusting an external power supply to adjust the current charging voltage of the battery to be the corrected voltage; And if the temperature change event of the battery is monitored in the battery power supply process, correcting the basic charging voltage according to the current temperature of the battery to obtain a corrected voltage matched with the current temperature, adjusting an external power supply to adjust the current charging voltage of the battery to be the corrected voltage, and returning to the step of monitoring the temperature of the battery in the battery power supply process.
2. The battery charging method according to claim 1, wherein the determining a base charging voltage corresponding to the recorded number of battery charging cycles comprises: And determining the basic charging voltage corresponding to the battery charging cycle times based on a mapping relation between the preset battery charging cycle times and the basic charging voltage.
3. The battery charging method of claim 1, wherein the number of battery charging cycles is inversely related to the base charging voltage, the greater the number of battery charging cycles, the less the base charging voltage.
4. The battery charging method according to claim 1, wherein said correcting the base charging voltage in accordance with the current temperature of the battery includes: Determining a voltage compensation value corresponding to the current temperature of the battery according to a mapping relation between a preset temperature and the voltage compensation value; And correcting the basic charging voltage according to the determined voltage compensation value.
5. The battery charging method according to claim 1, wherein the temperature is positively correlated with the voltage compensation value, the larger the temperature, the larger the voltage compensation value.
6. The method of claim 1, wherein the monitoring of the battery for a temperature change event during the battery power supply is: Obtaining a second temperature interval in which the current temperature of the battery is located from the existing temperature intervals, and determining that the battery is monitored to have a temperature change event if the second temperature interval is different from a first temperature interval in which the first temperature is located, the first temperature interval being a temperature interval in which the first temperature is located, which is found from the existing temperature intervals, or And obtaining a second temperature interval in which the current temperature of the battery is located from the existing temperature intervals, and determining that the battery is monitored to have a temperature change event if the second temperature interval is different from a third temperature interval in which the last temperature of the battery is located, wherein the third temperature interval is found from the existing temperature intervals, and the last temperature is located.
7. The method for charging a battery according to claim 1, wherein the method is applied to an electronic device including a charge control chip, The configuration parameters corresponding to the correction voltage are written into a voltage setting register of the charging control chip, and the charging control chip adjusts an external power supply to the current charging voltage of the battery according to the configuration parameters written into the voltage setting register so as to supply power to the battery through the correction voltage.
8. The battery charging method of claim 7, wherein the electronic device is a learning machine.
9. An electronic device comprising a battery, characterized in that the battery in the electronic device is charged by the battery charging method according to any one of claims 1 to 8.
10. The battery management device is characterized by comprising a battery and a battery management chip electrically connected with the battery, wherein the battery management chip comprises: An interface for connecting the temperature sensor to receive the temperature signal; a current measurement module for measuring a current flowing into or out of the battery; The processor is electrically connected with the current measurement module and the interface and is used for acquiring charge and discharge current data of the battery through the current measurement module, calculating the accumulated charge cycle times of the battery according to the charge and discharge current data and acquiring the temperature of the battery through the interface; The memory is electrically connected with the processor and is used for storing a preset mapping relation between the battery charging cycle times and the basic charging voltage, a mapping relation between the temperature and the voltage compensation value and the accumulated charging cycle times; The processor is further configured to determine a basic charging voltage corresponding to the battery charging cycle times according to the accumulated charging cycle times, correct the basic charging voltage according to a voltage compensation value determined by the current temperature of the battery, obtain a corrected voltage matched with the current temperature, and generate an instruction for adjusting the current charging voltage of the external power supply to be the corrected voltage.

Description

Battery charging method, electronic equipment and battery management device Technical Field The disclosure relates to the technical field of battery charging, and in particular relates to a battery charging method, electronic equipment and a battery management device. Background In the technical field of charging of electronic equipment, particularly for educational electronic equipment such as learning machines, a battery is used as a key power component, and a charging management strategy of the battery directly influences the service life, the safety and the user experience of the equipment. With the popularization of learning machines in educational scenes, users have put higher demands on the endurance, safety and reliability and long-term use stability of devices. Currently, a constant current and constant voltage charging method or a voltage-based charging current adjustment method is generally adopted for a battery in a learning machine. And in the constant current stage, the battery is charged by fixed current, and the constant voltage charging is performed after the battery voltage reaches a set threshold value until the charging current drops to the cut-off current, and then the charging is stopped. In the charging process, the battery is supposed to maintain an ideal state in the whole life cycle, and the charging parameters such as cut-off voltage, cut-off current and the like are often set to fixed values and are not dynamically adjusted along with the change of the state of the battery. However, the existing charging methods do not consider the effect of battery cycling aging on the charging process. As the number of times of battery use increases, the activity of the internal chemical material decreases and the internal resistance increases, if the initial charging parameters are still used, the safety problems such as bulge and gas production of the aged battery are easily caused in charging. Moreover, the lack of a fine adjustment mechanism based on temperature change cannot match the actual charge acceptance capability of the battery at different temperatures, and thus the comprehensive optimization adaptation of the battery state is difficult to realize. Disclosure of Invention In order to overcome the problems in the related art, the present disclosure provides a battery charging method, an electronic device, and a battery management apparatus. The battery charging method provided by the present disclosure includes: determining a base charging voltage corresponding to the recorded number of battery charging cycles when a battery charging event is monitored; Correcting the basic charging voltage according to the current first temperature of the battery to obtain a corrected voltage matched with the first temperature, and adjusting an external power supply to adjust the current charging voltage of the battery to be the corrected voltage; And if the temperature change event of the battery is monitored in the battery power supply process, correcting the basic charging voltage according to the current temperature of the battery to obtain a corrected voltage matched with the current temperature, adjusting an external power supply to adjust the current charging voltage of the battery to be the corrected voltage, and returning to the step of monitoring the temperature of the battery in the battery power supply process. In some embodiments, the determining a base charging voltage corresponding to the recorded number of battery charging cycles comprises: And determining the basic charging voltage corresponding to the battery charging cycle times based on a mapping relation between the preset battery charging cycle times and the basic charging voltage. In some embodiments, the number of battery charging cycles is inversely related to the base charging voltage, the greater the number of battery charging cycles, the smaller the base charging voltage. In some embodiments, said modifying said base charging voltage as a function of a current temperature of said battery comprises: Determining a voltage compensation value corresponding to the current temperature of the battery according to a mapping relation between a preset temperature and the voltage compensation value; And correcting the basic charging voltage according to the determined voltage compensation value. In some embodiments, the temperature is positively correlated with the voltage compensation value, the greater the temperature, the greater the voltage compensation value. In some embodiments, the monitoring of the battery for a temperature change event during the battery-powered process means: Obtaining a second temperature interval in which the current temperature of the battery is located from the existing temperature intervals, and determining that the battery is monitored to have a temperature change event if the second temperature interval is different from a first temperature interval in which the first temperature is located, the fi