Method for rapid factory inspection of rechargeable battery

A rechargeable battery, factory inspection technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of long production cycle and achieve the effect of improving work efficiency

Inactive Publication Date: 2019-09-06
TIANNENG BATTERY WUHU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Before the rechargeable battery leaves the factory, the rechargeable battery needs to be tested for the open circuit voltage, the voltage after discharge

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] This embodiment provides a method for rapid factory inspection of rechargeable batteries, including the following steps:

[0014] Step 1: Place the finished rechargeable battery on the transmission channel, and discharge it with a high current of 1C for 2s to detect the open circuit voltage, discharged voltage and battery internal resistance of the rechargeable battery;

[0015] Step 2: Mark the detection information on the battery, and the battery whose detection value deviates from the given process range will be released directly;

[0016] Step 3: Pack the rechargeable batteries that pass the test and leave the factory.

[0017] In the first step, the rechargeable battery is detected in a dual-channel parallel manner, and the detection speed can reach 20 batteries per minute, and in the first step, a random inspection is used.

Embodiment 2

[0019] This embodiment provides a method for rapid factory inspection of rechargeable batteries, including the following steps:

[0020] Step 1: Place the finished rechargeable battery on the transmission channel, and use 3C high current to discharge for 3s to detect the open circuit voltage, discharged voltage and battery internal resistance of the rechargeable battery;

[0021] Step 2: Mark the detection information on the battery, and the battery whose detection value deviates from the given process range will be released directly;

[0022] Step 3: Pack the rechargeable batteries that pass the test and leave the factory.

[0023] In the first step, the rechargeable battery is detected in a dual-channel parallel manner, and the detection speed can reach 15 batteries per minute, and in the first step, a random inspection is used.

Embodiment 3

[0025] This embodiment provides a method for rapid factory inspection of rechargeable batteries, including the following steps:

[0026] Step 1: Place the finished rechargeable battery on the transmission channel, and discharge it with a high current of 5C for 5s to detect the open circuit voltage, discharged voltage and battery internal resistance of the rechargeable battery;

[0027] Step 2: Mark the detection information on the battery, and the battery whose detection value deviates from the given process range will be released directly;

[0028] Step 3: Pack the rechargeable batteries that pass the test and leave the factory.

[0029] In the first step, the rechargeable battery is detected in a dual-channel parallel manner, and the detection speed can reach 10 batteries per minute, and in the first step, a random inspection is used.

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PUM

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Abstract

The invention provides a method for rapid factory inspection of a rechargeable battery. The method comprises the following steps: S1, placing rechargeable batteries after production completion on a transmission channel and carrying out discharging for 2 to 5s b using heavy currents of 1C to 5C, thereby detecting an open circuit voltage, a post-discharge voltage and an internal resistance of each battery; step two, marking detection information on the battery and pushing out the battery with the detection value deviating from a given process range; step three, packaging the qualified rechargeable batteries and moving the batteries out of the factory. On the basis of a dual-channel parallel mode, the rechargeable batteries are detected and thus the detection speed can reach 10 to 20 per minute; with the spot checking mode, the produced rechargeable batteries are detected and discharging is performed for 2 to 5s by using eavy currents of 1C to 5C so as to detect the open circuit voltage,post-discharge voltage and internal resistance of each battery; and after detection completion, the information is marked on the battery. Therefore, the work efficiency and accuracy of the work are improved substantially.

Description

technical field [0001] The invention relates to the field of storage battery production, in particular to a method for rapid factory inspection of rechargeable batteries. Background technique [0002] Rechargeable batteries need to be tested for open circuit voltage, discharged voltage and internal resistance of the rechargeable battery before leaving the factory. Currently, these methods in the prior art require a lot of time for testing, resulting in a long production cycle. Therefore, how to provide a method for fast ex-factory inspection of rechargeable batteries to realize accurate detection and screening of rechargeable batteries is particularly important. Contents of the invention [0003] In view of the above problems, the present invention provides a method for rapid factory inspection of rechargeable batteries. The rechargeable batteries that have been produced are detected through the dual-channel delivery channel and the random inspection method is used, and th...

Claims

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Application Information

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IPC IPC(8): G01R31/385
CPCG01R31/385
Inventor 钦晓峰高洁候意来闫瑞虎范孝俊
Owner TIANNENG BATTERY WUHU
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