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Pouch case, pouch type secondary battery and manufacturing method thereof

A secondary battery, pouch-shaped technology, applied in secondary battery manufacturing, secondary battery, electrolyte battery manufacturing, etc., can solve the problems of specific shape change, productivity reduction, frequent changes in size and design, etc.

Pending Publication Date: 2021-03-30
SK ON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In this case, due to the increase of the corresponding facilities and processes, the productivity decreases, and the size and design of the secondary battery must be changed as frequently as the development speed of electronic equipment, causing a problem that in the secondary battery bag The specific shape of the receiving part etc. formed on the will also be changed

Method used

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  • Pouch case, pouch type secondary battery and manufacturing method thereof
  • Pouch case, pouch type secondary battery and manufacturing method thereof
  • Pouch case, pouch type secondary battery and manufacturing method thereof

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Embodiment Construction

[0036] Hereinafter, the technical spirit of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are merely illustrations showing examples to describe the technical spirit of the present invention in detail by way of example, and thus the technical spirit of the present invention is not limited to the form of the drawings.

[0037] Before the description, in the claims and Figure 2-Figure 7 In the description of the electrode assembly and the pouch case in the instructions, the figure 2The coordinate system shown indicates the vertical direction, horizontal direction and height direction as a reference. The vertical direction, the horizontal direction, and the height direction represent directions extending to both sides in the display direction.

[0038] Embodiment of the pouch type secondary battery according to the present invention

[0039] see figure 2 , the pouch type secondary battery of the pr...

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Abstract

Provided are a pouch case for a pouch type secondary battery in which one corner is in close contact with a cooling plate and a pouch type secondary battery including the same. In the pouch case, by controlling a shape relation among a forming portion formed to have a non-zero depth determined in advance at a center to accommodate one side of an electrode assembly, a receiving portion in surface contact with a side surface of the electrode assembly at the time of sealing the pouch case, and a sealing portion for sealing opposing ends of the forming portion and the electrode assembly, a size ofa sealing protrusion formed after the electrode assembly is packaged through mechanical properties of a metal laminate sheet and a simplified die and punch may be minimized.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2019-0121140 filed with the Korean Intellectual Property Office on September 30, 2019, the entire contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to a pouch-shaped case, a pouch-type secondary battery and a manufacturing method thereof, in particular to a pouch-type secondary battery in which one side is in close contact with a cooling plate and a manufacturing method thereof. Background technique [0004] A secondary battery cell is formed by encapsulating an electrode assembly including an anode and a cathode, a separator, and an electrolyte in a case. The electrode assembly can be classified into a wound jelly-roll type, which is wound with a separator interposed between a sheet-like anode and a sheet-like cathode coated with an active material; a stacked jelly-roll ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/105H01M50/183
CPCH01M50/105H01M10/058Y02E60/10Y02P70/50H01M10/0436H01M50/557H01M50/548H01M50/178H01M50/124H01M10/6554H01M10/647H01M10/613H01M50/119B29C51/08B29L2031/7146H01M10/0585H01M50/183H01M50/531H01M50/543
Inventor 姜熙京金泰日
Owner SK ON CO LTD