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Secondary battery

A technology for secondary batteries and battery casings, which is applied to battery pack parts, battery boxes/covers, and battery box/cover materials, etc. It can solve problems such as poor strength, and achieve the effects of improving resistance and sealing efficiency

Inactive Publication Date: 2016-01-20
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In contrast, when the shell is formed from a composite aluminum bag, the shell typically has low strength while being light in weight.

Method used

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Examples

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Embodiment Construction

[0036] Now, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0037] figure 1 is an assembled perspective view of a secondary battery according to an embodiment of the present invention, figure 2 yes figure 1 An exploded perspective view of the secondary battery shown, image 3 is along figure 1 A cross-sectional view taken along line A-A'.

[0038] see figure 1 and figure 2 , The secondary battery 100 according to an embodiment of the present invention includes an electrode assembly 10 , a hard case (or battery case) 20 and a thermal adhesive layer (or adhesive layer) 50 . The secondary battery 100 may be electrically connected with an external electric device (not shown), thereby performing a charging operation supplied with electric energy or a discharging operation supplied with electric energy.

[0039] The electrode assembly 10 may be formed by winding or stacking a laminate of the first electrode pla...

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Abstract

A secondary battery comprising: an electrode assembly including a first electrode plate, a second electrode plate, and a separator interposed between the first electrode plate and the second electrode plate; and a battery case accommodating the electrode assembly, the battery The shell includes a first portion, a second portion, and an adhesive layer contacting a surface of the first portion and a surface of the second portion, wherein the adhesive layer is continuous between the first portion and the second portion.

Description

technical field [0001] Aspects of the invention relate to secondary batteries. Background technique [0002] A lithium secondary battery or rechargeable battery can be manufactured as a bare cell, which may include an electrode assembly having a positive electrode plate, a negative electrode plate, and a separator, and a case for accommodating the electrode assembly. [0003] In general, cases for bare cells are typically formed from aluminum cans or composite aluminum pouches. [0004] When the case is formed from an aluminum can, typically the case is heavy while having high strength. In contrast, when the case is formed from a composite aluminum bag, the case typically has low strength while being light in weight. [0005] Therefore, research is being conducted on a secondary battery having a hard and lightweight case. Contents of the invention [0006] Aspects of the present invention provide a secondary battery having improved resistance to external impact, light w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/02H01M50/105H01M50/119H01M50/121H01M50/124H01M50/193
CPCY02E60/10H01M50/103H01M50/124H01M50/105H01M50/121H01M50/193H01M50/119H01M50/133H01M50/409
Inventor 金哉亨
Owner SAMSUNG SDI CO LTD