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Method and device for determining fracture of internal metal structure of storage battery

A technology of metal structure and determination method, applied in the direction of measurement device, measurement of electricity, measurement of electric variables, etc., can solve the problem of not being able to detect whether the tab or busbar is broken, not suitable for batteries, etc.

Pending Publication Date: 2021-03-30
SHENZHEN POWER SUPPLY BUREAU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the inspection of whether the tabs or busbars of the battery are broken mainly depends on manual inspection with an optical endoscope. Although this method is effective to a certain extent, it cannot detect whether the tabs or busbars in the part covered by the activated material of the battery are broken. And the manual optical endoscope detection method is not suitable for large-scale online battery detection

Method used

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  • Method and device for determining fracture of internal metal structure of storage battery
  • Method and device for determining fracture of internal metal structure of storage battery
  • Method and device for determining fracture of internal metal structure of storage battery

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Embodiment Construction

[0043] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0045] It can be understood that the terms "first", "second" and the like used in this application may be...

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Abstract

The invention relates to a method and a device for determining fracture of an internal metal structure of a storage battery. The method comprises the following steps: acquiring actual polarization capacitance, wherein the actual polarization capacitance is a polarization capacitance value of a to-be-tested storage battery under the conditions that the electric quantity is Q and the voltage is U; and according to the error between the actual polarization capacitance and the reference polarization capacitance and the standard polarization capacitance, judging whether the to-be-detected storage battery has a condition that an internal metal structure is broken. By detecting the polarization capacitance of the to-be-tested storage battery under the conditions that the electric quantity is Q and the voltage is U to obtain the actual polarization capacitance, and comparing the actual polarization capacitance with the polarization capacitance data of a reference storage battery with the samespecification under the same condition, namely comparing the actual polarization capacitance with the reference polarization capacitance and the standard polarization capacitance of the reference storage battery, whether the internal metal structure of the to-be-tested storage battery is broken or not is judged, namely whether the tab or the busbar falls off or is broken or not is judged.

Description

technical field [0001] The present application relates to the technical field of storage battery detection, in particular to a determination method and a determination device for the fracture of the internal metal structure of the storage battery. Background technique [0002] At present, lead-acid batteries are widely used in electric DC power systems, communication power supplies, computer room UPS (Uninterruptible Power Supply, uninterruptible power supplies), and new energy storage power stations. It is an important task for battery inspection, management and maintenance. Among them, the fracture of the tab or the fracture of the bus bar is one of the main faults of the battery. [0003] At present, the inspection of whether the tabs or busbars of the battery are broken mainly depends on manual inspection with an optical endoscope. Although this method is effective to a certain extent, it cannot detect whether the tabs or busbars in the part covered by the activated mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/389G01R31/385
CPCG01R31/389G01R31/385
Inventor 杨忠亮黄世回岑凯辛
Owner SHENZHEN POWER SUPPLY BUREAU
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