Battery grouping method and battery grouping system

A battery and matching technology, used in secondary batteries, secondary battery testing, secondary battery manufacturing, etc., can solve the problems of large errors, low efficiency, poor balance, etc., to prevent misjudgment, reduce misjudgment rate, Reduce the effect of inaccurate capacity

Active Publication Date: 2016-02-03
福建省致格新能源电池科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In summary, the existing battery matching method i...

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  • Battery grouping method and battery grouping system

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the embodiments and the accompanying drawings. It should be noted that the described embodiments are only intended to facilitate the understanding of the present invention, rather than limiting it in any way.

[0040] see figure 1 As shown, a battery matching method of the present invention includes the following steps:

[0041] S0. Use coding equipment to prepare coding information on the battery, and store the coding information in the computer; the coding equipment can be a scanning gun and a printer, and the battery identification information is printed on the surface of the battery through the printer, and then use the scanning gun Scan the battery to obtain coded information; before performing steps S1, S2 and S3, use a scanning device to scan and record the coded information on the battery, store the detection data and coded information of the battery in a database, and the computer include...

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Abstract

The invention relates to a battery grouping method and a battery grouping system. The battery grouping method comprises the following steps: S1, putting batteries into a secondary battery performance detection cabinet and carrying out first time of capacity grading according to effective data; S2, putting the batteries into the secondary battery performance detection cabinet again and carrying out second time of capacity grading according to the effective data; by taking a capacity which is detected at the second time as the standard, selecting batteries with abnormal capacities; by taking voltage drop as the standard, selecting batteries with abnormal voltage; S3, carrying out alternating-current internal resistance detection, direct-current internal resistance detection and voltage drop detection; grading according to a numerical value range of a discharging capacity which is detected at the second time; after grading, carrying out grading grouping on the batteries according to the voltage drop and the numerical value ranges of an alternating-current internal resistance value and a direct-current internal resistance value. The battery grouping method and the battery grouping system have the beneficial effects that by detecting the capacities, the voltage drop and the inner resistances for two times, bad battery single bodies can be selected and battery packs which meet actual working conditions to the greatest extent can be highly precisely grouped.

Description

technical field [0001] The invention relates to the technical field of battery detection and grouping, in particular to a battery grouping method and a battery grouping system. Background technique [0002] In practical applications, in order to meet the requirements of the load, it is often necessary to assemble dozens or even hundreds of battery cells together in series or parallel to meet the needs of high voltage and high capacity. In theory, it is required that the internal resistance, capacity and other parameters of these batteries should be as consistent as possible, so that the power released by the battery can be maximized. However, due to the influence of factors such as production conditions, manufacturing environment, material characteristics, and production equipment, the same batch of battery parameters (such as cell rated capacity, cell open circuit voltage, cell charging voltage platform, cell discharge voltage platform, cell Internal resistance, electroche...

Claims

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Application Information

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IPC IPC(8): H01M10/42H01M10/04
CPCH01M10/04H01M10/4207H01M10/4285Y02E60/10Y02P70/50
Inventor 杨和山陈湘彪
Owner 福建省致格新能源电池科技有限公司
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