Lithium Ion battery voltage, internal resistance and shell resistance comprehensive test device

A lithium-ion battery, comprehensive testing technology, applied in measuring devices, measuring resistance/reactance/impedance, measuring electricity, etc., can solve the problems of low efficiency and high leakage detection rate, achieve high efficiency, low cost, and prevent bad batteries from leaking. Effect

Inactive Publication Date: 2013-10-02
TIANJIN LISHEN BATTERY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Very low efficiency and high missed detection rate

Method used

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  • Lithium Ion battery voltage, internal resistance and shell resistance comprehensive test device
  • Lithium Ion battery voltage, internal resistance and shell resistance comprehensive test device
  • Lithium Ion battery voltage, internal resistance and shell resistance comprehensive test device

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Embodiment

[0021] see attached Figure 1-3 , the present invention provides a lithium-ion battery voltage, internal resistance and shell resistance comprehensive testing device, including a probe testing mechanism 4 and a test digital display 3, the probe testing mechanism includes a detection probe 1, a cylinder 2, a switch and a test control The test circuit is composed of the test main circuit and the control circuit; the test main circuit realizes the on-off switching of the test main circuit through the normally open and normally closed contacts of the intermediate relay, and controls the voltage internal resistance test and the shell resistance test respectively. Switching operation; the control circuit realizes the conversion between the test main circuit and the control circuit through the self-locking on and off of the intermediate relay and the delay on and off function of the time relay; the time relay in the control circuit realizes the battery The timing when the positive po...

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PUM

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Abstract

The invention relates to a lithium Ion battery voltage, internal resistance and shell resistance comprehensive test device which is characterized by comprising a probe testing mechanism and a testing digital display, the probe testing mechanism comprises a testing probe, a cylinder, a switch and a testing control circuit, the testing control circuit is composed of a testing main circuit and a control circuit; the testing main circuit realizes through/break switch through the opening of an intermediate relay normally open normally closed contact, and controls the switching of voltage inner resistance testing and shell resistance testing respectively; the control circuit realizes the switch between the testing main circuit and the control circuit through the self-locking through/break of the intermediate relay and the through/break function of a time relay. The device has the advantages of improving testing efficiency and badness detecting capacity, realizing combining operation of voltage inner resistance testing and shell resistance testing, and increasing unqualified battery alarming, so as to avoid unqualified battery leakage.

Description

technical field [0001] The invention belongs to a detection device for a lithium battery, in particular to a comprehensive testing device for the voltage internal resistance and shell resistance of a lithium ion battery. Background technique [0002] Polymer flexible packaging lithium-ion batteries have the advantages of high voltage, high specific energy, many cycle times, and long storage time. Compared with other types of lithium-ion batteries, they have wider application prospects. [0003] The flexible packaging of the polymer flexible packaging lithium-ion battery is an aluminum-plastic packaging case, which is a flexible material with good insulation, and can completely isolate the battery cell from the air and moisture outside the battery when it is completely sealed. However, the inside of the casing is easily damaged, resulting in the exposed aluminum layer. The presence of HF in the electrolyte can strongly corrode the exposed aluminum layer, resulting in liquid l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36G01R27/02
Inventor 王富强张晶张政涛
Owner TIANJIN LISHEN BATTERY
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