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Sealing device for battery case with increased pressing and heat application area

A technology for sealing equipment and battery cells, used in sealing materials, lithium storage batteries, secondary batteries, etc., can solve problems such as short circuit of electrode components, leakage of electrolyte solution, and failure of sealing predetermined parts to be tightly sealed.

Active Publication Date: 2018-06-08
LG ENERGY SOLUTION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The process problem that the portion to be sealed is not tightly sealed as described above causes a serious problem that the electrolytic solution leaks, or moisture or foreign matter penetrates into the manufactured battery cell, and thus the electrode assembly is short-circuited.
[0014] In this case, the above-mentioned problem (that is, the problem that the sealing intended portion of the portion adjacent to the electrode lead is not tightly sealed) becomes more serious

Method used

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  • Sealing device for battery case with increased pressing and heat application area
  • Sealing device for battery case with increased pressing and heat application area
  • Sealing device for battery case with increased pressing and heat application area

Examples

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Embodiment Construction

[0108] Hereinafter, the present invention will be described with reference to the accompanying drawings according to examples of the present invention, which are provided for better understanding of the present invention, and thus, the scope of the present invention is not limited by the accompanying drawings.

[0109] image 3 shows a schematic diagram of a sealing device according to an example of the present invention, Figure 4 shows a plan view of the sealing device, and Figure 5 A vertical cross-sectional view of the sealing device is shown.

[0110] Referring to these figures, the sealing device 100 is a sealing block for applying heat and pressure to a sealing intended portion 150 of a battery cell, and includes a first block 110 and a second block 120 at upper and lower portions facing each other.

[0111] Each of the first block 110 and the second block 120 includes a pair of protrusions 300 extending outward from one side end and a pair of protrusions (not shown)...

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Abstract

The present invention provides a sealing device having a structure in which a pressed area and a heat application area are increased by means of a pair of sealing blocks and a pressing part extendingfrom the sealing block. The sealing device according to the present invention can apply heat and pressure to a part to be sealed or an insulating film which is stretched when the part to be sealed ispressed on the basis of the above structure, to thereby be able to firmly bond an electrode lead and the part to be sealed adjacent thereto.

Description

technical field [0001] This application claims priority and the benefit of Korean Patent Application No. 10-2015-0179813 filed with the Korean Intellectual Property Office on December 16, 2015, the entire contents of which are hereby incorporated by reference. The invention relates to a sealing device for battery housings with increased pressure and heat application areas. Background technique [0002] Recently, with the technical development of mobile devices and the increase in demand, the demand for secondary batteries capable of charging and discharging as an energy source has rapidly increased, and therefore, a lot of research has been conducted on secondary batteries that can meet various needs . [0003] In addition, secondary batteries have attracted attention as power sources for electric vehicles (EV), hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PLUG-IN HEV), etc., as a solution to the use of fossil fuels. A solution to air pollution from ex...

Claims

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Application Information

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IPC IPC(8): H01M2/06H01M2/10H01M10/052H01M2/08H01M50/124H01M50/178H01M50/183H01M50/548H01M50/557
CPCH01M10/0404Y02E60/10H01M50/557Y02P70/50H01M50/183H01M50/124H01M50/178H01M50/548B29C66/83221B29C66/1122B29C66/433B29C66/81431B29L2031/3468B29C65/18B29C66/81425H01M10/0525
Inventor 林圣伦
Owner LG ENERGY SOLUTION LTD
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