Battery module equalization method, electronic device and storage medium in battery cycle

A battery module and balancing method technology, which is applied to battery circuit devices, charge balancing circuits, circuit devices, etc., can solve problems such as difficulty in accurately estimating the actual capacity of a battery cell, difficulty in ensuring accuracy and efficiency, and deviation in balancing effect, etc. The effect of considerable equalization

Active Publication Date: 2022-07-08
DONGGUAN AMPEREX TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing battery balancing technology may have the problem that the accuracy and efficiency are difficult to guarantee, and the balancing efficiency is affected
Or there is a problem that it is difficult to accurately estimate the actual capacity of the battery cell, resulting in a deviation in the equalization effect

Method used

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  • Battery module equalization method, electronic device and storage medium in battery cycle
  • Battery module equalization method, electronic device and storage medium in battery cycle
  • Battery module equalization method, electronic device and storage medium in battery cycle

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Embodiment Construction

[0051] The following are explanations for some technical terms appearing in this application to help understand this application.

[0052] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0053]It should be further noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a ser...

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Abstract

A method for balancing a battery module, comprising the steps of: acquiring a voltage value of each cell in a battery module including a plurality of cells; determining a preset voltage threshold of the cells in the battery module; When the voltage value of the battery cell is greater than or equal to the preset voltage threshold value, calculate the cumulative charging capacity (I*T) of the battery cell; when the lowest battery cell voltage in the battery module reaches the voltage threshold value , stop calculating the cumulative charging capacity; when the cumulative charging capacity of any of the cells is greater than or equal to the cell capacity threshold, perform equalization processing on the cells. The present application also provides an electronic device and a storage medium. By implementing the present application, the accumulative charging capacity of each battery cell can be accurately calculated, and the required equalization time to be turned on can be accurately calculated, which can improve the equalization effect of the battery module.

Description

technical field [0001] The present application relates to the field of battery technology, and in particular, to a battery module equalization method, an electronic device, and a storage medium. Background technique [0002] After the battery is used in a long-term cycle, the inconsistency between the single cells connected in series inside the battery module will be enlarged due to the difference in the use environment of the battery module. The inconsistency among the single cells includes inconsistency in cell capacity, inconsistency in internal resistance, and inconsistency in voltage. When charging, some single cells will be charged prematurely, while some single cells are not fully charged. This will cause the overall battery module to not be fully charged. When discharging, some single cells will appear undervoltage very early. This will cause the overall battery module to be unable to fully discharge its capacity, resulting in a loss of total capacity. Therefore,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H02J7/00
CPCH01M10/4207H02J7/0014H01M2010/4271Y02E60/10
Inventor 罗丕进曾思钟弟杨荣春
Owner DONGGUAN AMPEREX TECH
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