Battery module equalization method in battery circulation, electronic device and storage medium
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 balancing the effect of efficiency. The effect of considerable equalization
Active Publication Date: 2021-06-04
DONGGUAN AMPEREX TECH
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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
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[0051] The following are explanations of some technical terms that appear in this application to help understand the application.
[0052] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0053]It is further to be noted that in this document, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not o...
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The invention discloses a battery module equalization method, and the method comprises the following steps: acquiring a voltage value of each battery cell in a battery module comprising a plurality of battery cells; determining a preset voltage threshold value of a battery cell in the battery module; when the voltage value of any one battery cell is greater than or equal to the preset voltage threshold value, calculating the accumulated charging capacity (I * T) of the battery cell; when the lowest battery cell voltage in the battery module reaches the voltage threshold value, stopping calculating the accumulated charging capacity; and when the accumulated charging capacity of any battery cell is greater than or equal to a battery cell capacity threshold value, performing equalization processing on the battery cell. The invention further provides an electronic device and a storage medium. According to the invention, the accumulated charging capacity of each battery cell can be accurately calculated, the equalization time required to be started can be accurately calculated, and the equalization effect of the battery module can be improved.
Description
technical field [0001] The present application relates to the technical field of batteries, in particular to a battery module equalization method, an electronic device and a storage medium. Background technique [0002] After the battery is used for a long time, due to the difference in the environment of the battery module, the inconsistency between the single cells connected in series inside the battery module will be enlarged. 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 will not be fully charged. This will cause the overall battery module to be fully charged. When discharging, some single cells will appear undervoltage very early. This will cause the overall battery module to not fully discharge its capacity, resulting in a loss of total capacity. Therefore, as the inconsistency ...
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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