A battery matching method

A battery pack, battery technology, applied in the direction of measuring electricity, measuring electrical variables, measuring devices, etc., can solve problems such as blindness of batteries, and achieve the effect of avoiding screening deviation and widening practical value

Active Publication Date: 2017-09-15
HEFEI GUOXUAN HIGH TECH POWER ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the current battery matching is mainly to classify the batteries first and then group them according to the gears. Although this method can reduce the difference in battery capacity to a certain extent, due to the capacity difference between the battery gears and the selection of each The randomness of the batteries between the gears makes the matching of the batteries more blind

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Examples

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Embodiment Construction

[0040] In this example, take 50 batteries at random and make them into 6 parallel 7 strings as an example. The total capacity of the battery pack after grouping is required to be 124200±300mAH. The specific steps are as follows:

[0041] 1. First import the data of 50 batteries into the excel form by scanning the code;

[0042]

[0043] 2. Then divide the 50 batteries into 8 groups according to the code scanning sequence, the first to seventh groups have 6 batteries in each group, and the remaining batteries are the last group named battery replacement bank group, and calculate the total capacity of each group And the maximum difference in capacity, the specific data is as follows:

[0044]

[0045]

[0046] 3. The following conclusions can be drawn from the above table:

[0047]

[0048] Therefore, the first group, the second group, and the fifth group are directly matched successfully, and the third group, the fourth group, the sixth group, and the seventh group...

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Abstract

The invention discloses a method for grouping batteries. If the requirements for grouping are M and N series, the method directly divides redundant N*M batteries into N+1 groups, wherein the number of N groups is M in each group. , the remaining number of batteries in a group is the total number of batteries taken out minus the remaining number of N*M, and then verify whether the total capacity and the maximum capacity difference of the batteries meet the requirements sequentially from the first group, if all meet the requirements, the group of batteries is directly If the grouping is successful, if it does not meet the requirements, calculate which batteries need to be replaced, and then find out the batteries that meet the corresponding conditions from the remaining batteries, and replace them. After the replacement is completed, the reorganized battery grouping is successful. By accurately calculating the capacity of the battery to be replaced, the present invention can ensure that the capacity difference of the whole battery pack is minimized, thereby improving the stability and consistency of the battery pack, effectively prolonging the service life of the battery pack, and increasing the cruising range of the vehicle.

Description

technical field [0001] The invention belongs to the technical field of battery production, and in particular relates to a battery assembly method. Background technique [0002] At present, the voltage and capacity of a single battery cannot be directly put into practical use. It is necessary to increase the capacity and voltage of the battery through battery matching so that it can meet the requirements of practical use. However, the battery matching is through The series-parallel connection of single cells is realized, and due to the consistency of single cells, in order to ensure the consistency of the capacity of the battery pack, in order to ensure the stability and service life of the battery pack, it cannot be simply connected in series and parallel. Increase the voltage and capacity of the battery pack, so in the process of battery matching, it is necessary to minimize the capacity difference between the batteries and reduce the total capacity difference between the b...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01R31/36
Inventor王峰孟令奎徐小明武义兵曾强
OwnerHEFEI GUOXUAN HIGH TECH POWER ENERGY