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Rechargeable battery

A technology for recharging and recharging batteries, which is applied to battery components, circuits, electrical components, etc., and can solve problems such as inability to obtain high-energy output and damage to rechargeable batteries

Active Publication Date: 2006-05-03
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above pressure reducing valve has a problem in that, once the pressure reducing valve breaks beyond its withstand pressure level, the air and moisture flowing in from the outside through the opening can cause damage to the rechargeable battery.
When the pressure reducing valve ruptures due to internal pressure changes, sufficient high-energy output cannot be obtained

Method used

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Embodiment Construction

[0021] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure is thorough, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.

[0022] It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present.

[0023] The rechargeable battery of the present invention can release gas generated ...

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PUM

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Abstract

A rechargeable battery includes an electrode assembly comprising a positive electrode, a negative electrode, and a separator interposed in between the electrodes, a case that houses the electrode assembly, and a unidirectional valve assembly that is installed at a side of the case, is connected through with the inside of the case, and releases gas only from the inside to the outside.

Description

technical field [0001] The present invention relates to a rechargeable battery having an extended service life by maintaining the pressure inside the case at a predetermined level. Background technique [0002] Generally, rechargeable batteries can be repeatedly charged and discharged, unlike non-rechargeable batteries that cannot be recharged. High energy rechargeable batteries with high energy density and using non-aqueous electrolytes have recently been developed. Low-capacity batteries including individual battery cells packaged in packs are used as power sources for small portable electronic devices such as mobile phones, laptop computers, and camcorders. Large batteries, which consist of multiple battery cells connected together, are used as a power source for electric motors that drive machines that require large amounts of electrical power, such as electric vehicles. [0003] Rechargeable batteries are classified into various types according to the external shape o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/12H01M2/04H01M2/34
CPCH01M50/325Y02E60/10
Inventor 林鸿燮
Owner SAMSUNG SDI CO LTD
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