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Charging method and device

A charging method and charging technology, which are applied in the electronic field, can solve problems such as battery polarization cannot be alleviated, charging speed drops, battery heating, etc., and achieve the effects of alleviating heating, reducing superimposed effects, and prolonging service life

Active Publication Date: 2022-07-01
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Problems solved by technology

When using constant current charging to charge the battery, the high current will lead to greater polarization of the battery, resulting in a decrease in charging speed, and the high current will cause the battery to heat up. In related technologies, in order to alleviate the phenomenon of battery heating, the battery will be charged After constant current charging for a period of time, continue to charge the battery with a reduced charging current value. However, in this case, the polarization of the battery cannot be alleviated, and it is very likely to be further aggravated, which will further lead to charging speed drop

Method used

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  • Charging method and device

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Embodiment Construction

[0058]Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

[0059] figure 1 It is a flow chart of a charging method according to an exemplary embodiment. The method can be applied to a charging control module, and the charging control module can be, for example, a charging control circuit or a charging control chip, and the embodiment of the present disclosure does not limit the type of the charging control module. like figure 1 As shown, the method may i...

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Abstract

The present disclosure relates to a charging method and device, including: using a first charging mode to charge a battery; during the process of using the first charging mode to charge the battery, perform the following operations: from a first time to a later time than a first time At the second moment of time, the battery is charged with constant current with the first current value; from the second time to the third time later than the second time, the battery is depolarized. During the depolarization operation, the battery is depolarized. The current value of the battery is less than the second current value, and the second current value is less than the first current value; from the third time to the fourth time later than the third time, the battery is charged with a constant current with the second current value. It can effectively alleviate the polarization generated by the battery, thereby effectively improving the charging speed of the battery. In addition, in the process of depolarizing the battery, the current value of the battery is less than the second current value, which can also effectively alleviate the battery heating phenomenon, which is beneficial to Extend battery life.

Description

technical field [0001] The present disclosure relates to the field of electronic technology, and in particular, to a charging method and device. Background technique [0002] Generally speaking, the charging method of the battery can include constant current charging and constant voltage charging. The constant current charging can be expressed as keeping the charging current unchanged during the charging process until the charging voltage value of the battery reaches a preset value. Constant voltage charging can be expressed as, during the charging process, the voltage of the charging power supply keeps a constant value throughout the charging time, and as the battery terminal voltage gradually increases, the current gradually decreases. When using constant current charging to charge the battery, the high current will cause the battery to generate a large polarization, resulting in a decrease in the charging speed, and the high current will cause the battery to heat up. Af...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/007H01M10/44Y02E60/10
Inventor 高锃陈仁杰魏学文王宗强
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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