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Battery cell having improved battery safety by using inert particles

A technology of battery cells and inert particles, which is applied to lithium batteries, electrical components, battery electrodes, etc., and can solve problems such as reducing the space utilization of devices

Active Publication Date: 2016-08-17
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] However, in the case where a battery cell or a battery pack configured to have a rectangular hexahedron shape is mounted in a device designed to have the above-mentioned curved portion or a device that can be bent, space utilization in the device may be reduced.

Method used

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  • Battery cell having improved battery safety by using inert particles
  • Battery cell having improved battery safety by using inert particles
  • Battery cell having improved battery safety by using inert particles

Examples

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Embodiment Construction

[0081] Now, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted, however, that the scope of the present invention is not limited to the illustrated embodiments.

[0082] image 3 To illustrate a plan view of a battery cell 100 according to an embodiment of the present invention, Figure 4 is typically shown based on image 3 A side view of the internal structure of the battery cell 100 of the embodiment of the battery cell 100 .

[0083] Referring to these drawings, a battery cell 100 according to the present invention is configured to have the following structure: an electrode assembly 110 includes a positive electrode 111, a negative electrode 112, and a separator 113 interposed between the positive electrode 111 and the negative electrode 112, respectively, and in In the state where the electrode assembly 110 is impregnated with an electrolyte, the electrode assembly 110 is installed i...

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Abstract

The present invention provides a battery cell being flexibly deformable according to the shape of a device on which to mount and having a structure in which an electrode assembly is embedded in a variable cell case while impregnated with an electrolyte, wherein an electrode at the top and / or the bottom of the electrode assembly on the basis of the stacking direction of electrodes is configured such that an electrode composition comprising inert particles is applied on an electrode current collector facing the inside of the cell case and that 10% to 100% of the inert particles are distributed at the surface of the electrode composition, thereby forming a curve on the surface of the electrode composition as seen in a vertical cross section, or that a coating part comprising inert particles is formed on an electrode composition layer facing the inside of the cell case.

Description

technical field [0001] The present invention relates to battery cells with improved safety using inert particles. Background technique [0002] With the remarkable development of information technology (IT), various portable information communication devices have been popularized. Therefore, in the 21st century, we are moving towards a popular society where high-quality information services can be provided anytime and anywhere. [0003] Lithium secondary batteries are very important for realizing such a pervasive society. In particular, lithium secondary batteries that can be charged and discharged have been widely used as energy sources for wireless mobile devices. In addition, lithium secondary batteries have also been used as energy sources for electric vehicles and hybrid electric vehicles to solve problems such as air pollution caused by existing gasoline vehicles and diesel vehicles using fossil fuels. The problem. [0004] As described above, since the devices to ...

Claims

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Application Information

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IPC IPC(8): H01M10/04H01M4/62H01M4/04H01M4/13H01M10/058H01M2/02H01M50/119H01M50/121H01M50/124H01M50/136
CPCH01M4/13H01M4/62H01M4/0404H01M10/0436H01M10/052H01M10/0585Y02E60/10Y02P70/50H01M50/121H01M50/124H01M50/136H01M50/119H01M50/103H01M4/622H01M10/0525
Inventor 姜重求李镇树成周桓尹星弼金性旻金周彬林惠珍禹昇希
Owner LG ENERGY SOLUTION LTD
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