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Apparatus and method for conducting nail penetration test for secondary battery

A technology of secondary batteries and nails, applied in the field of equipment and methods for performing nail puncture tests on secondary batteries

Active Publication Date: 2018-01-02
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present disclosure is to solve the problems in the related field, therefore, the present disclosure relates to providing a method and an apparatus for performing a nail puncture test on a secondary battery, which can predict the Changes in the magnitude of the short-circuit current flowing inside the battery and quantitatively analyze the heat generation characteristics of the nail puncture point

Method used

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  • Apparatus and method for conducting nail penetration test for secondary battery
  • Apparatus and method for conducting nail penetration test for secondary battery
  • Apparatus and method for conducting nail penetration test for secondary battery

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Embodiment Construction

[0060] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Before the description, it should be understood that the terms used in the specification and appended claims should not be construed as limited to the ordinary and dictionary meanings based on the principle of allowing the inventors to properly define the terms for best interpretation, but It should be interpreted based on meanings and concepts corresponding to the technical aspects of the present disclosure. Therefore, the descriptions presented herein are for illustrative purposes only, and are merely preferred examples, and are not intended to limit the scope of the present disclosure, so it should be understood that other modifications can be made thereto without departing from the scope of the present disclosure. Effects and modifications.

[0061] figure 1 is a block diagram schematically illustrating a configuration of an appara...

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Abstract

Disclosed are an apparatus and method for conducting a nail penetration test for a secondary battery. The apparatus for conducting a nail penetration test, according to the present invention, comprises: a stage for fixing a secondary battery subject to the nail penetration test; a nail penetration unit including a means for lifting and lowering a nail; a voltage measurement unit that repeatedly measures the short-circuit voltage of the secondary battery with a time interval while the nail penetration test is being conducted; and a control unit coupled to the voltage measurement unit to operatetogether. The control unit: periodically receives the short-circuit voltage from the voltage measurement unit; determines a short-circuit current to form the input short-circuit voltage between the outermost nodes of an equivalent circuit, which is obtained by modeling the secondary battery, every time the short-circuit voltage is input; and visually outputs, through a display, a change in the determined short-circuit current value according to time.

Description

technical field [0001] The present disclosure relates to an apparatus and method for performing a nail puncture test on a secondary battery, and more particularly, to an apparatus and method for performing a nail puncture test that when a nail punctures into a secondary battery, the The apparatus and method can easily predict a change in short-circuit current flowing through a secondary battery by using an equivalent circuit of the secondary battery. [0002] This application claims priority from Korean Patent Application No. 10-2015-0127839 filed in Korea on September 9, 2015, the disclosure of which is incorporated herein by reference. Background technique [0003] Secondary batteries generate electrical energy through electrochemical oxidation and reduction reactions, and are widely used for various purposes. The scope of use of secondary batteries is gradually expanding. For example, secondary batteries are used in devices carried by human hands—such as mobile phones, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36H01M10/42H01M10/48
CPCG01R31/36H01M10/48H01M10/4285H01M10/488Y02E60/10Y02P70/50G01R31/389G01R31/367G01R31/385
Inventor 林振馨徐世旭高友涵崔容硕
Owner LG ENERGY SOLUTION LTD
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