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Secondary battery and method for manufacturing the same

A secondary battery and electrode technology, which is applied in secondary battery manufacturing, secondary batteries, small flat batteries/batteries, etc., and can solve problems such as deterioration of battery performance

Active Publication Date: 2015-09-30
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Stacked electrode assemblies may have deteriorated battery performance due to abnormal reactions in the outermost part of the electrodes

Method used

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  • Secondary battery and method for manufacturing the same
  • Secondary battery and method for manufacturing the same
  • Secondary battery and method for manufacturing the same

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Embodiment Construction

[0020] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the disclosure are shown. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

[0021] In the drawings, the thickness of layers, films, panels, regions, etc., may be exaggerated for clarity. The same reference numerals denote the same elements throughout the description. 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.

[0022] refer to figure 1 with figure 2 , a secondary battery according to one embodi...

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Abstract

Disclosed is a rechargeable battery which includes a first electrode, a second electrode and a third electrode sequentially stacked therein, and separators each interposed between the first electrode, the second electrode, and the third electrode, and a case for housing the electrode assembly. The outermost layer of the electrode assembly includes an inactive material layer.

Description

technical field [0001] The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. Background technique [0002] The battery converts the chemical energy generated by the electrochemical redox reaction of the chemicals in the battery into electrical energy. Such batteries can be classified into primary batteries that should be discarded after the energy in the battery is exhausted, and secondary batteries that can be recharged more than once. A secondary battery can be charged / discharged more than once based on reversible conversion between chemical energy and electrical energy. Recent developments in the high-tech electronics industry have resulted in smaller and lighter electronic devices, which has led to an increase in portable electronic devices. As a power source of such portable electronic devices, there is an increasing demand for batteries with high energy density, and many studies have been directed to the developmen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/76H01M4/04H01M10/04H01M4/02H01M4/13H01M4/131H01M4/134H01M4/1391H01M4/1395H01M10/052H01M10/058H01M10/0585
CPCY02E60/122Y10T29/49108H01M4/62H01M10/4235H01M10/0436Y02E60/10Y02P70/50H01M10/0585H01M4/13H01M10/052H01M4/525H01M4/505H01M2200/00
Inventor 鲁世源金性洙金兑根洪琎圭崔南顺金俊植韩万锡李宗勋
Owner SAMSUNG SDI CO LTD