Unlock instant, AI-driven research and patent intelligence for your innovation.

Pouch for secondary battery and secondary battery including the same

a secondary battery and pouch technology, applied in the field of pouch structure, can solve the problem of increasing the overall thickness of the pouch

Inactive Publication Date: 2015-05-28
LG CHEM LTD
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a pouch that can accommodate a high-capacity polymer battery. The pouch is designed to have a large number of stacks, which makes it suitable for storing large batteries. This improves the efficiency of the battery storage and allows for more batteries to be stored in a smaller space.

Problems solved by technology

However, with respect to a typical large-sized polymer battery, since the number of cell stacks constituting an electrode assembly may be high, an overall thickness may increase, and only a battery having a predetermined thickness (5 mm) or less may be prepared due to the forming limit of a pouch.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pouch for secondary battery and secondary battery including the same
  • Pouch for secondary battery and secondary battery including the same
  • Pouch for secondary battery and secondary battery including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029]Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the description with reference to the attached drawings, like reference numerals in the drawings denote like elements, and thus repetitive descriptions thereof will not be provided. Though terms like “first” and “second” are used to describe various components, the components are not limited to these terms. These terms are used only to differentiate one component from another.

[0030]FIG. 2 is a sectional conceptual view illustrating a structure of a pouch for a secondary battery according to the present invention.

[0031]Referring to FIG. 2, the pouch for a secondary battery according to the present invention may include an accommodation space of an electrode assembly, and may be formed by including an upper housing module 122, in which polymer layers 111 and 112 are formed on one surface or both surfaces of a base plate 110, and a lower pouch sheet 120 w...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided is a structure of a pouch which may be used in a high-capacity battery having high capacity and high stiffness, wherein the pouch may include an upper housing module which includes a metallic base plate having a concave-shaped accommodation space and polymer layers formed on one surface or both surfaces of the base plate, and a lower pouch sheet which is combined with a lower surface of the upper housing module to seal the accommodation space.

Description

TECHNICAL FIELD[0001]The present invention relates to a structure of a pouch which may be used in a high-capacity battery having high capacity and high stiffness.BACKGROUND ART[0002]Recently, lithium secondary batteries, which are chargeable / dischargeable and lightweight and have high energy density and high output density, have been widely used as energy sources for wireless mobile devices. Lithium secondary batteries have also attracted considerable attention as power sources for hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), battery electric vehicles (BEVs), and electric vehicles (EVs), which have been developed to solve limitations such as air pollution and green-house gases that are caused by existing internal combustion engine vehicles that use fossil fuels such as gasoline and diesel vehicles.[0003]Lithium secondary batteries are classified by electrode type into lithium ion batteries that use liquid electrolyte and lithium polymer batteries that u...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M2/02H01M2/06H01M50/105H01M50/119H01M50/126H01M50/133H01M50/548H01M50/55
CPCH01M2/06H01M2/0287H01M10/0525Y02E60/10H01M50/131H01M50/124Y02P70/50H01M50/126H01M50/133H01M50/105H01M50/55H01M50/548H01M50/119Y02T10/70
Inventor AHN, CHANG BUMKIM, HYUK SUKU, DAE GEUNLEE, HYANG MOK
Owner LG CHEM LTD