Self-adaptive charging method and system

A charging method and technology of a charging system, applied in secondary battery charging/discharging, charging/discharging current/voltage regulation, collectors, etc., can solve problems such as long charging time, increase charging current acceptance ratio, and improve charging efficiency , The effect of shortening the charging time

Active Publication Date: 2021-02-09
YUNENG ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, for normal charging, 8-hour or 10-hour charging rate constant current is used for charging, or the traditional three-stage or multi-stage charging mode is used, which requires a long charging time. Based on this, an adaptive charging method is urgently needed. and system to reduce charging time and improve charging efficiency

Method used

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Embodiment 1

[0026] This embodiment is used to provide an adaptive charging method, such as figure 1 Shown, described charging method comprises the steps:

[0027] Step 101: Determine the maximum acceptable charging current of the battery corresponding to each moment according to the Maas curve, and use the maximum acceptable charging current of the battery corresponding to each moment as the charging current at each charging moment to precharge the battery to obtain The maximum voltage value of the battery during the pre-charging process;

[0028] The Maas curve used in this embodiment is derived according to Maas's third law. Specifically, integrated Maas's three laws, it can be deduced that I=I 0 e αt this formula. In the formula, I is the charging current at any charging moment, and I 0 is the initial charging current, α is the charging acceptance rate, and t is the charging time. I 0 , The value of α is related to the battery type, structure and newness. Furthermore, the above...

Embodiment 2

[0064] This embodiment is used to provide an adaptive charging system, which uses the above-mentioned charging method to work, such as figure 2 As shown, the charging system includes a microcontroller, a drive circuit, a semiconductor conversion circuit, an application battery, and a battery sensor acquisition module;

[0065] The battery sensor acquisition module is respectively connected to the application battery and the microcontroller in communication; the battery sensor acquisition module is used to collect the battery status information of the application battery in real time, and send the battery status information to the The microcontroller; the battery status information includes the internal resistance and voltage of the application battery; an ADC converter is also arranged between the battery sensor acquisition module and the microcontroller, and the ADC converter is used to convert the analog signal into a digital signal .

[0066] The microcontroller, the driv...

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Abstract

The invention relates to a self-adaptive charging method and system, and belongs to the technical field of battery charging. The method comprises the steps of pre-charging a battery to obtain the maximum voltage value of the battery, determining the charging current at each charging moment in real time according to the maximum voltage value and the battery state information, charging the battery continuously by adopting a large charging current, so that active substances of the battery can be fully excited, the battery is fully charged in a short time, the charging speed is increased, the charging time is reduced, and the charging efficiency is improved. In addition, the self-adaptive charging method and system also controls the charging current not to exceed a maximum acceptable chargingcurrent of the battery, so that the battery can be prevented from generating a large amount of gas in the charging process, and the battery is prevented from being damaged due to violent gas outlet.

Description

technical field [0001] The invention relates to the technical field of battery charging, in particular to an adaptive charging method and system. Background technique [0002] If the battery is not charged in time when the battery is fully discharged, the active substances inside the battery will lose their activity permanently and an irreversible chemical reaction will occur. Generally, for normal charging, 8-hour or 10-hour charging rate constant current is used for charging, or the traditional three-stage or multi-stage charging mode is used, which requires a long charging time. Based on this, an adaptive charging method is urgently needed. And system to reduce charging time and improve charging efficiency. Contents of the invention [0003] The purpose of the present invention is to provide an adaptive charging method and system, which continuously charges the battery with a large charging current, fully stimulates the active material of the battery, fully fills the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00
CPCH01M10/44H02J7/007H02J7/007182Y02E60/10
Inventor 赵宗哲赵丽范云飞田小光付彦梅赵晶晶张涛涛陈亚璐
Owner YUNENG ELECTRIC
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