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Second battery

一种二次电池、电极的技术，应用在二次电池领域，能够解决阻碍安全、爆发火灾、低机械强度等问题，达到安全性改善、防止热量和火花的效果

Active Publication Date: 2018-06-08
LG ENERGY SOLUTION LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a problem that when the battery case has low mechanical strength and the sealing part is separated, pyrotechnic substances such as electrolyte leak to increase the risk of fire
In addition, in the case where a foreign object such as a nail and the like penetrates the battery, when the positive and negative electrodes directly contact each other, sudden current flows between the positive and negative electrodes to generate heat, sparks, and the like, and thus cause fire broke out
[0011] In a medium-sized or large-sized battery pack in which a plurality of unit cells are electrically connected to each other for the purpose of high power and large capacity, the above-mentioned fire is a very serious risk factor, which hinders safety.

Method used

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Embodiment Construction

[0028] The objects, specific advantages, and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. It should be noted that the components of the drawings in this specification are given the same reference numerals as much as possible even if these reference numerals are also shown in other drawings. Also, the invention may be embodied in different forms and should not be construed as limited to only the embodiments set forth herein. In the following description of the present invention, detailed descriptions of related arts that may unnecessarily obscure the gist of the present invention will be omitted.

[0029] figure 1 is a perspective view of a secondary battery according to an embodiment of the present invention.

[0030] refer to figure 1 , The secondary battery 100 according to an embodiment of the present invention includes an electrode stack 110 and a ground p...

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Abstract

The present invention relates to a second battery, and the secondary battery according to the present invention comprises: an electrode laminate formed by joining electrodes and separation membranes;and a grounding part for grounding the electrode laminate to the outside, wherein the grounding part comprises a grounding member which is located on one side of the separation membrane and into whichabnormal current, flowing out from the electrodes to one side of the separation membrane, is pulled in.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims the benefit of priority from Korean Patent Application No. 10-2016-0096316 filed on Jul. 28, 2016, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to a secondary battery. Background technique [0004] Unlike primary batteries, secondary batteries are rechargeable and have a high possibility of being compact in size and high in capacity. Therefore, recently, many studies on secondary batteries are underway. With technological development and increasing demand for mobile devices, demand for secondary batteries as energy sources is rapidly increasing. [0005] In addition, secondary batteries are classified into button type batteries, cylindrical type batteries, prismatic type batteries, and pouch type batteries according to the shape of the battery case. In such a secondary battery, an electrode assembly ins...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/34H01M10/0585H01M10/052H01M50/463H01M50/572
CPCH01M10/052H01M2200/00H01M10/0413Y02E60/10H01M50/572Y02P70/50H01M50/463H01M10/0585H01M2220/20H01M50/46
Inventor 林圣伦崔渼金
Owner LG ENERGY SOLUTION LTD
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