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Battery cell balancing method, device and equipment

An equalization method and equalization technology, applied in circuit devices, charge equalization circuits, battery circuit devices, etc., can solve problems such as large battery voltage differences, reduced service life, and deterioration of battery pack performance, so as to improve equalization efficiency and accuracy and safety effects

Pending Publication Date: 2022-06-28
章鱼博士智能技术(上海)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the unbalanced battery pack is not balanced in time, the voltage difference between the battery cells will become larger and larger, resulting in the deterioration of the performance of the battery pack and the reduction of the service life, so the balance of the battery is particularly important

Method used

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  • Battery cell balancing method, device and equipment
  • Battery cell balancing method, device and equipment
  • Battery cell balancing method, device and equipment

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Embodiment Construction

[0022] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] see figure 1 and figure 2 , in one embodiment, a method for cell balancing, which specifically includes the following steps:

[0024] Step S101: Acquire cell information of the cells to be balanced, and divide the plurality of cells to be balanced into a plurality of balanced partitions based on the position of the collection board wher...

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Abstract

The invention discloses a battery cell equalization method, device and equipment, and the method comprises the steps: obtaining the battery cell information of to-be-equalized battery cells, and dividing a plurality of to-be-equalized battery cells into a plurality of equalization partitions based on the positions, represented by the battery cell information, of collection plates where the to-be-equalized battery cells are located; and balancing the to-be-balanced battery cells in each balancing partition based on the protection temperature of each balancing partition, wherein the protection temperature is the temperature upper limit of the balancing partition. According to the technical scheme provided by the invention, the to-be-equalized battery cells located on different acquisition boards are divided into different equalization partitions, so that the battery cells among the different equalization partitions can be equalized at the same time, the plurality of equalization partitions can be equalized at the same time and do not influence each other, and the battery cell equalization efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of new energy battery design, in particular to a method, device and equipment for cell balancing. Background technique [0002] In a power battery cluster composed of multiple battery cells in series, due to the inevitable differences in the manufacturing process of the battery cells, and in the use of the battery cluster, there are also differences in the heat dissipation, charge and discharge of each battery cell, which As a result, the voltages between the battery cells are different, which is the so-called unbalanced phenomenon of the battery cells. If the unbalanced battery pack is not balanced in time, the voltage difference between the battery cells will become larger and larger, resulting in the deterioration of the performance of the battery pack and the reduction of the service life. Therefore, the balance of the battery is particularly important. In the prior art, an unbalanced battery cell (ie, a cell wit...

Claims

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Application Information

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IPC IPC(8): H01M10/42H02J7/00
CPCH01M10/4207H02J7/007194H02J7/0014
Inventor 田扩张建彪仇惠惠杨红新钟凯
Owner 章鱼博士智能技术(上海)有限公司
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