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Composite separator equipped in battery cell and method for manufacturing the same

A composite diaphragm and single cell technology, which is applied in the direction of secondary batteries, battery pack components, circuits, etc., can solve the problems of inability to cut off the current properly, not closed, single cell burning, etc.

Inactive Publication Date: 2016-12-07
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high heat resistance of the material, the pores may not close under such conditions
As a result, the current may not be properly cut off when overcharging occurs, so charging continues, resulting in combustion, explosion, etc. of the cells

Method used

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  • Composite separator equipped in battery cell and method for manufacturing the same
  • Composite separator equipped in battery cell and method for manufacturing the same
  • Composite separator equipped in battery cell and method for manufacturing the same

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Embodiment Construction

[0035] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not meant to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are meant to include the plural forms as well, unless the context clearly dictates otherwise. It should be further understood that when used in this specification, the terms "comprising" and / or "comprising" indicate the existence of the described features, integers, steps, operations, elements and / or components, but do not exclude the existence or addition of a One or more other features, integers, steps, operations, elements, components and / or combinations thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] Unless expressly stated or obvious from context, as used herein, the term "about" is understood as within a range of normal tolerance in the art, eg, within 2 standard deviations of th...

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Abstract

The present invention provides a composite separator for a battery cell and a method for manufacturing the same. In particular, the composite separator equipped in a battery cell includes a non-woven separator comprising a high heat resistant polymer fiber that comprises a thermal deformation material on a high heat resistant polymer material. Accordingly, thermal contraction of the separator can be prevented in the high temperature condition which occurs when the battery cell is overcharged, and change of the shape of the separator can be prevented.

Description

[0001] Cross References to Related Applications [0002] This application is based on and claims the benefit of priority from Korean Patent Application No. 10-2014-0157929 filed with the Korean Intellectual Property Office on November 13, 2014, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to a composite separator for a single cell and a method of manufacturing the same. In particular, the composite separator can be equipped in a single cell to prevent the risk of burning and explosion occurring when the lithium ion single cell is overcharged, and to provide a safety feature for the lithium ion single cell. Background technique [0004] Separators in single cells have been used to prevent the risk of combustion and explosion in the single cell due to the heat generation that occurs when the cathode and anode are in contact by cutting off the physical contact between the cathode and anode. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/16H01M10/0525H01M50/403H01M50/414H01M50/451H01M50/469H01M50/489
CPCH01M10/0525Y02E60/10H01M50/44H01M50/403H01M50/469H01M50/451H01M50/414H01M50/489H01M50/417H01M50/454D01D5/0007Y02P70/50
Inventor 李尚埈郑竝早金思钦
Owner HYUNDAI MOTOR CO LTD