Device and method for measuring insulation resistor of lithium ion battery cell

Abstract

The invention discloses a method for measuring the insulation resistor of a lithium ion battery cell. The method comprises the following steps of: setting testing parameters of an insulation resistor tester; adjusting a testing gear of direct-current voltage on a multimeter; adjusting the testing position of a photoelectric sensor to detect a voltage value of the multimeter; using an insulation resistor test instrument pen to contact the positive pole and the negative pole of the battery cell; displaying the voltage value between the positive pole and the negative pole of the battery cell in step 4 by the multimeter; sending a signal after the voltage value displayed on the multimeter in step 5 is sensed by a photoelectric sensor; and sending out a prompting sound after the signal in step 6 is received by a buzzer. According to the method, the insulation resistor of the lithium ion battery cell can be effectively measured, the missing measurement or the invalid measurement is avoided, the device can operate automatically and is high in operability by the design that a digital display instrument and the photoelectric sensing are combined, and the testing efficiency and the testing validity are improved.

Description

technical field [0001] The invention relates to lithium battery production technology, in particular to a test for the insulation resistance of a lithium battery core. Background technique [0002] In the lithium-ion battery production process, before the electrolyte is injected, the insulation resistance between the positive and negative electrodes of the lithium battery needs to meet certain specifications in order to ensure the performance and safety of the battery. At present, the insulation resistance tester is widely used to check whether the insulation resistance of the battery core is qualified, but there is a defect that it cannot confirm whether the test pen is in effective contact with the product under test, so that the validity of the test cannot be guaranteed. [0003] This shows that the above-mentioned existing lithium-ion battery core insulation resistance measuring device and measuring method obviously still have inconvenience and defects in use, and need t...

AI Technical Summary

Problems solved by technology

At present, the insulation resistance tester is widely used to test whether the insulation resistance of the battery core is qualified, but there is a defect, that is, it cannot be confirmed whether the test pen is in effective contact with the product under test, so that the validity of the test cannot be guaranteed.

[0003] This shows that the above-mentioned existing lithium-ion battery core insulation resistance measuring device and measuring method obviously still have inconvenience and defects in use, and need to be further improved urgently

In order to solve the problems existing in the measurement of the insulation resistance of lithium-ion battery cores, relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and there is no suitable structure for general products to solve the above problems. The problem is obviously a problem that the relevant industry is eager to solve

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