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Battery module deformation prediction device

A battery module and prediction module technology, applied in the direction of measuring devices, measuring electrical variables, batteries, etc., can solve the problems of increasing deformation and reducing the stability of the overall battery module structure, and achieve the effect of stabilizing the structure of the battery module

Active Publication Date: 2019-04-02
LG ENERGY SOLUTION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this time, although the volume of each secondary battery is only slightly increased due to expansion, the amount of deformation of the entire battery module may be severely increased due to the accumulation of the increased volume of each secondary battery.
Therefore, the volume expansion caused by the expansion of each secondary battery may reduce the structural stability of the overall battery module

Method used

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Embodiment Construction

[0052] 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 the appended claims should not be construed as being limited to the usual or dictionary meanings, but should be interpreted based on the meanings and concepts corresponding to the technical aspects of the present disclosure, the principles of which It is to allow the inventor to define terms appropriately for best interpretation.

[0053] Therefore, the descriptions presented herein are only preferred examples for the purpose of illustration, and are not intended to limit the scope of the present disclosure, so it should be understood that other equivalent changes and modifications can be made thereto without departing from the scope of the present disclosure. .

[0054] For a battery module having at least one secondary battery in a module case,...

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Abstract

Disclosed is a device which can effectively and accurately predict a degree of deformation of a battery module in accordance with a swelling of a secondary battery. A battery module deformation prediction device according to the present invention is a device for predicting the deformation degree of the battery module in accordance with the swelling of the secondary battery in a battery module comprising one or more secondary battery within a module case thereof and comprises: a cell evaluation module which derives a relation between a thickness change amount and a reaction in relation to one secondly battery; a case evaluation module which derives a relation between a load applied to the module case and a width change amount of the module case; and a prediction module which predicts an amount of the deformation of the battery module by using the relation between the thickness change amount and the reaction of a battery, which has been derived by the cell evaluation module, and the relation between the load and the width change amount of the module case, which has been derived by the case evaluation module.

Description

technical field [0001] This application claims priority from Korean Patent Application No. 10-2017-0011229 filed on January 24, 2017, the contents of which are incorporated herein by reference. [0002] The present disclosure relates to a technique for predicting deformation of a battery module, and more particularly, to an apparatus capable of effectively and accurately predicting a degree of deformation of a battery module due to expansion due to use or deterioration of a secondary battery. Background technique [0003] Currently commercially available secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, nickel-zinc batteries, and lithium secondary batteries. Among them, compared with nickel-based secondary batteries, lithium secondary batteries have almost no memory effect, which can ensure free charge and discharge, and also have extremely low self-discharge rate and high energy density, so lithium secondary batteries have received much attent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/38H01M50/211
CPCG01R31/36H01M10/48H01M2220/20H01M50/211H01M50/204Y02E60/10H01M10/4285H01M10/38G01M5/0041
Inventor 金东延孔镇鹤崔容硕徐星源李润九姜达模文祯晤
Owner LG ENERGY SOLUTION LTD
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