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Battery charging method and electronic equipment

A technology for electronic equipment and battery charging, applied in different battery charging, battery circuit devices, current collectors, etc., to solve problems such as high power consumption, battery temperature rise, and heat generation

Active Publication Date: 2021-11-30
HONOR DEVICE CO LTD
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AI Technical Summary

Problems solved by technology

[0005] In the scenario where electronic devices are charged for a long time, especially when the electronic devices consume a lot of power during operation, so that they need to be frequently taken from the battery, if the recharge voltage is close to the rated full charge voltage or the recharge amount is close to the full charge capacity , then the current general power management technology will cause the battery voltage or power to quickly reach the recharge threshold and be recharged frequently, causing the battery to remain in a state of high power or high voltage for a long time
At the same time, the charging conversion efficiency during recharging will generate heat, which will cause the temperature of the battery to rise, accelerate battery aging and failure, and cause safety risks such as swelling.

Method used

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  • Battery charging method and electronic equipment
  • Battery charging method and electronic equipment

Examples

Experimental program
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Effect test

example 1

[0278] Example 1, such as Figure 12 As shown, after the first recharging is completed, the full charging threshold is lowered from the initial Q11 to Q12, and the recharging threshold is lowered from the initial Q21 to Q22; after the second recharging is completed, the full charging threshold is lowered from Q21 It is lowered to Q31, and the recharge threshold is lowered from Q22 to Q32. That is to say, in this stage, every time the number of recharges increases, the full charge threshold and the recharge threshold are lowered by one time, that is, the cycle m=1.

[0279] Starting from the third recharge, after the third recharge and the fourth recharge are completed in sequence, the full charge threshold is lowered from Q31 to Q41, and the recharge threshold is lowered from Q32 to Q42. That is to say, in this stage, every time the number of recharging times increases by 2, the full charging threshold and the recharging threshold are lowered once, that is, the cycle m=2.

example 2

[0280] Example 2, such as Figure 13 As shown, after the first recharging is completed, the full charging threshold is lowered from the initial Q11 to Q12, and the recharging threshold is lowered from the initial Q21 to Q22. That is to say, in this stage, if the number of recharges is increased by one, the full charge threshold and the recharge threshold are lowered by one time, that is, the cycle m=1.

[0281] Starting from the second recharge, after the second recharge and the third recharge are completed in sequence, the full charge threshold is lowered from Q21 to Q31, and the recharge threshold is lowered from Q22 to Q32. That is to say, in this stage, the recharging times are increased by 2 times, and then the full charging threshold and the recharging threshold are lowered once, that is, the period m=2.

[0282] Starting from the 4th recharge, after the 4th to 6th recharges are completed in sequence, the full charge threshold is lowered from Q31 to Q41, and the recharg...

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Abstract

The invention provides a battery charging method and electronic equipment, relates to the technical field of battery charging, and aims to dynamically and intelligently adjust two charging thresholds, avoid frequent recharging of a battery in a high-voltage or high-electric-quantity state, improve the charging conversion efficiency in recharging and reduce battery heating. therefore, the service life of the battery can be effectively prolonged, and safety risks such as battery swelling are avoided. The electronic equipment can count the number of times of re-charging of the battery in at least one single charging process, and / or obtain the temperature of the battery in re-charging. And then, the electronic equipment can lower the full charging threshold and the recharging threshold according to the number of times of recharging and / or the temperature, and adopts the lower full charging threshold and the lower recharging threshold to control recharging.

Description

technical field [0001] The present application relates to the technical field of battery charging, in particular to a battery charging method and electronic equipment. Background technique [0002] As an important energy storage device, batteries (such as lithium batteries) are widely used in consumer electronics (such as mobile phones, computers) and electric vehicles. At the same time, battery life is mainly affected by the state of charge (or voltage state) it is in and temperature. For example, if the battery is in a state of high power or high temperature for a long time, it is easy to accelerate the aging and failure of the battery, causing safety hazards such as battery expansion. [0003] In some actual scenarios, electronic devices may be charged for a long time. In one case, in order to ensure the battery life of the electronic device in a high power consumption scenario, the electronic device may be plugged in for a long time. For example, use the mobile phone ...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/007182H02J7/0029H02J7/0047Y02B40/00H02J7/00714
Inventor 徐小华周海滨李鹏朱华
Owner HONOR DEVICE CO LTD
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