KR200305510Y1 - A electrolytic solution injection hole sealing structure of lithium thionyl chloride battery - Google Patents

A electrolytic solution injection hole sealing structure of lithium thionyl chloride battery Download PDF

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KR200305510Y1
KR200305510Y1 KR20020029009U KR20020029009U KR200305510Y1 KR 200305510 Y1 KR200305510 Y1 KR 200305510Y1 KR 20020029009 U KR20020029009 U KR 20020029009U KR 20020029009 U KR20020029009 U KR 20020029009U KR 200305510 Y1 KR200305510 Y1 KR 200305510Y1
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injection hole
battery
electrolyte
lithium thionyl
chromide
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KR20020029009U
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Korean (ko)
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조승옥
김상욱
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(주)에너렉스
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    • Y02E60/12

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  • Sealing Battery Cases Or Jackets (AREA)
  • Primary Cells (AREA)

Abstract

본 고안은 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인에 관한 것으로서, 더욱 상세하게는 전해액 주입구의 밀봉성을 향상시켜 누액에 의한 오염 및 전지 성능의 저하를 방지하여 안정성을 향상시킬 수 있는 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조에 관한 것이다.The present invention relates to sealing an electrolyte inlet of a lithium thionyl chromide battery, and more particularly, lithium thionyl, which can improve stability by improving sealing property of an electrolyte inlet and preventing contamination due to leakage and deterioration of battery performance. It relates to an electrolyte injection port sealing structure of a chromide battery.

본 고안의 목적은 전지해드의 주입구 밀봉을 위한 용접용 자재를 SUS BALL형상에서 리벳 타입으로 사용하여 SPOT 용접시 면접촉으로 인한 접촉 면적를 증가시켜 용접품질을 향상시킴으로서 전해액의 누설을 방지하고 전지성능을 향상시킬 수 있는 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조를 제공함에 있다.The purpose of the present invention is to use the welding material for sealing the battery head's inlet from the SUS ball shape to the rivet type to increase the contact area due to the surface contact during SPOT welding to improve the welding quality, thereby preventing the leakage of electrolyte and improving the battery performance. The present invention provides an electrolyte inlet sealing structure of a lithium thionyl chromide battery that can be improved.

상기의 목적을 달성하기 위한 본 고안의 구성은 전지해드의 전해액 주입구를 소정 용접용 자재를 이용하여 SPOT 용접하여 봉인하는 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조에 있어서, 상기 용접용 자재는 상기 주입구의 내주면에 접하여 삽입되는 원통형의 주입구 삽입부재와, 상기 주입구 삽입부재의 상부면에 접하여 일체로 형성된 판형상의 주입구 덮개로 구성되어 리벳형상을 가지는 것을 특징으로 한다.The constitution of the present invention for achieving the above object is in the electrolyte injection hole sealing structure of the lithium thionyl chromide battery sealing the electrolyte injection port of the battery head by using a predetermined welding material SPOT, the welding material is A cylindrical injection hole insertion member inserted in contact with the inner circumferential surface of the injection hole and a plate-shaped injection hole cover integrally formed in contact with the upper surface of the injection hole insertion member are characterized by having a rivet shape.

Description

리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조{A electrolytic solution injection hole sealing structure of lithium thionyl chloride battery}A electrolytic solution injection hole sealing structure of lithium thionyl chloride battery

본 고안은 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인에 관한 것으로서, 더욱 상세하게는 전해액 주입구의 밀봉성을 향상시켜 누액에 의한 오염 및 전지 성능의 저하를 방지하여 안정성을 향상시킬 수 있는 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조에 관한 것이다.The present invention relates to sealing an electrolyte inlet of a lithium thionyl chromide battery, and more particularly, lithium thionyl, which can improve stability by improving sealing property of an electrolyte inlet and preventing contamination due to leakage and deterioration of battery performance. It relates to an electrolyte injection port sealing structure of a chromide battery.

도 2는 일반적인 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조를 나타낸 측단면도이다.Figure 2 is a side cross-sectional view showing the electrolyte injection hole sealing structure of a typical lithium thionyl chromide battery.

일반적으로 상기 도면에 도시된 바와 같이 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조는 리튬 티오닐 크로라이드전지의 해드 상부 주입구(100)를 통해 전해액을 주입하고 주입구에 볼형상의 용접용 자재(SUS BALL)(200)을 놓고 소정 용접봉(300)으로 용접(SPOT 용접)을 하여 밀봉하였다.In general, as shown in the drawing, the electrolyte injection hole sealing structure of the lithium thionyl chloride battery is injected into the electrolyte through the head upper injection hole 100 of the lithium thionyl chloride battery, and the ball-shaped welding material (SUS) is injected into the injection hole. BALL) 200 was placed and sealed by welding (SPOT welding) with a predetermined electrode 300.

그러나, 용접용 자재가 볼형상을 이루어 SUS BALL과 주입구 모서리와의 접촉면이 선으로 이루어져 전지해드 상면의 평탄도 및 SUS BALL 외경의 균일성을 확보하여야 균일한 접촉에 의한 SPOT 용접이 가능하나, 전지해드의 주입구 타발시 상면이 변형될 수 있는 소지가 많았으며, 또한 SUS BALL도 균일한 외경을 유지하여야 하나 제품에 따라 조금씩 편차가 발생한다.However, the welding material is in the shape of a ball, and the contact surface between the SUS ball and the edge of the inlet is made of lines, so that the flatness of the upper surface of the battery head and the uniformity of the outer diameter of the SUS ball can be ensured. The upper surface of the head can be deformed when the injection hole is blown out. Also, the SUS ball must maintain a uniform outer diameter, but a slight variation occurs depending on the product.

따라서, SUS BALL을 이용하여 전지해드의 주입구를 SPOT 용접하게 되면 SUS BALL과, 주입구 모서리가 부분적으로 접촉이 되지 않은 상태에서 용접되게 되어 용접상태가 불균일하여 안정된 제품을 제조하기 어렵다.Therefore, when welding the injection hole of the battery head using the SUS BALL, the SUS BALL and the edge of the injection hole are welded in a state that is not partially in contact with each other, the welding state is uneven, it is difficult to produce a stable product.

특히, 리튬전지의 경우 주입구의 밀봉이 완전하지 못하면 전해액 증발로 인해 전지 성능의 저하를 가져오며전지의 경우 공기와 반응시 심한 부식성으로 전지와 사용기기의 부식을 가져 올 수 있다.In particular, in the case of a lithium battery, if the sealing of the inlet is not complete, electrolyte performance may be degraded due to evaporation of the electrolyte. In the case of batteries, they are highly corrosive when reacted with air, resulting in corrosion of batteries and equipment.

본 고안은 상기의 제반 문제점을 해결하기 위해 안출된 것으로서, 본 고안의목적은 전지해드의 주입구 밀봉을 위한 용접용 자재를 SUS BALL형상에서 리벳 타입으로 사용하여 SPOT 용접시 면접촉으로 인한 접촉 면적를 증가시켜 용접품질을 향상시킴으로서 전해액의 누설을 방지하고 전지성능을 향상시킬 수 있는 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조를 제공함에 있다.The present invention has been devised to solve the above problems, and the object of the present invention is to use a welding material for sealing the inlet of the battery head as a rivet type in the SUS ball shape to increase the contact area due to surface contact during SPOT welding. In order to improve the welding quality, it is possible to provide an electrolyte injection hole sealing structure of a lithium thionyl chromide battery which can prevent leakage of electrolyte and improve battery performance.

상기의 목적을 달성하기 위한 본 고안의 구성은 전지해드의 전해액 주입구를 소정 용접용 자재를 이용하여 SPOT 용접하여 봉인하는 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조에 있어서, 상기 용접용 자재는 상기 주입구의 내주면에 접하여 삽입되는 원통형의 주입구 삽입부재와, 상기 주입구 삽입부재의 상부면에 접하여 일체로 형성된 판형상의 주입구 덮개로 구성되어 리벳형상을 가지는 것을 특징으로 한다.The constitution of the present invention for achieving the above object is in the electrolyte injection hole sealing structure of the lithium thionyl chromide battery sealing the electrolyte injection port of the battery head by using a predetermined welding material SPOT, the welding material is A cylindrical injection hole insertion member inserted in contact with the inner circumferential surface of the injection hole and a plate-shaped injection hole cover integrally formed in contact with the upper surface of the injection hole insertion member are characterized by having a rivet shape.

도 1은 본 고안에 따른 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조를 나타낸 측단면도,1 is a side cross-sectional view showing an electrolyte injection hole sealing structure of a lithium thionyl chromide battery according to the present invention;

도 2는 일반적인 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조를 나타낸 측단면도.Figure 2 is a side cross-sectional view showing the electrolyte injection hole sealing structure of a typical lithium thionyl chromide battery.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10 : 주입구 20 : 용접용 자재10: injection hole 20: welding material

21 : 주입구 삽입부재 22 : 주입구 덮개21: injection hole insertion member 22: injection hole cover

30 : 용접봉30: welding rod

이하 첨부된 도면을 참조하여 본 고안의 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조에 대해 상세히 설명한다.Hereinafter, the electrolyte injection hole sealing structure of the lithium thionyl chromide battery of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 고안에 따른 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조를 나타낸 측단면도이다.1 is a side cross-sectional view showing an electrolyte injection hole sealing structure of a lithium thionyl chromide battery according to the present invention.

상기 도면에는 본 고안의 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조를 나타내고 있는데, 전지해드의 상부에 소정 직경을 가지고 관통형성된 주입구(10)에 SPOT 용접할 용접용 자재(20)를 구비하되, 상기 용접용 자재(20)는 상기 주입구(10)의 내주면에 접하여 삽입되는 원통형의 주입구 삽입부재(21)를 형성하고 상기 주입구 삽입부재(21)의 상부에는 상기 주입구(10)의 상부면에 상기주입구(10)를 포함하여 접하는 주입구 덮개(22)를 일체로 형성한 리벳형상을 가지도록 구비한다.The drawing shows the electrolyte injection hole sealing structure of the lithium thionyl chromide battery of the present invention, provided with a welding material 20 to be SPOT welded to the injection hole 10 having a predetermined diameter on the top of the battery head, The welding material 20 forms a cylindrical injection hole inserting member 21 which is inserted in contact with the inner circumferential surface of the injection hole 10 and the upper surface of the injection hole 10 is formed on the upper portion of the injection hole inserting member 21. Including the injection hole 10 is provided so as to have a rivet shape formed integrally with the injection hole cover 22 in contact.

상기와 같이 구성된 본 고안은 상기의 주입구 삽입부재(21)와 주입구 덮개(22)가 일체로 형성된 리벳형상의 용접용 자재를 전지해드의 주입구(10)에 구비하되, 상기 주입구 삽입부재(21)를 전지해드의 주입구(10)에 삽입하여 주입구(10) 내주면이 상기 주입구 삽입부재(21)의 외주면과 접촉되도록 하며, 상기 주입구 덮개(22)는 상기 주입구(10) 상부면에 접촉되도록 구비한다.The present invention configured as described above is provided with a rivet-shaped welding material formed integrally with the injection hole insertion member 21 and the injection hole cover 22 at the injection hole 10 of the battery head, and the injection hole insertion member 21. Is inserted into the injection hole 10 of the battery head so that the inner circumferential surface of the injection hole 10 is in contact with the outer circumferential surface of the injection hole insertion member 21, and the injection hole cover 22 is provided to be in contact with the upper surface of the injection hole 10. .

그런 다음, 소정 용접봉(30)으로 SPOT 용접하게 되는데, 이때 전지해드의 주입구(10) 내주면과 상기 주입구 삽입부재(21)의 외주면과 접촉되고, 상기 주입구 덮개(22)는 전지해드의 주입구(10) 상부면에 면접촉되어 용접용 자재가 선접촉이 아닌 면접촉을 이루어 용접되어 접촉면적이 증가하게 된다.Then, SPOT welding is performed with a predetermined electrode 30, in which the inner peripheral surface of the injection hole 10 of the battery head and the outer peripheral surface of the injection hole insertion member 21 are contacted, and the injection hole cover 22 is the injection hole 10 of the battery head. ) The surface area is contacted with the upper surface, and the welding material is welded by the surface contact instead of the line contact, and the contact area is increased.

따라서, 용접면적의 증가로 인해 밀봉효과가 증대되어 전지내에 주입되는 전해액의 누설되는 일이 발생되지 않으며, 전해액의 증발이 없어 전지의 성능을 향상시킬 수가 있게 된다.Therefore, the sealing effect is increased due to an increase in the welding area, so that leakage of the electrolyte solution injected into the battery does not occur, and there is no evaporation of the electrolyte solution, thereby improving battery performance.

상술한 바와 같이 본 고안은 기존의 전지해드의 주입구를 봉인하기 위한 용접봉 자재인 SUS BALL을 리벳형상으로 제작사용하여 주입구와의 접촉면을 증가하여 용접시 선접촉에서 면접촉되어 용접품질을 향상시킬 수 있어 전해액의 누설방지로 인한 전지의 성능을 향상시킬 수 있는 효과가 있다.As described above, the present invention uses SUS BALL, which is a welding rod material for sealing an injection hole of a conventional battery head, in a riveted shape to increase the contact surface with the injection hole, thereby improving the welding quality due to surface contact at the line contact during welding. There is an effect that can improve the performance of the battery due to the leakage of the electrolyte.

Claims (1)

전지해드의 전해액 주입구를 소정 용접용 자재를 이용하여 SPOT 용접하여 봉인하는 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조에 있어서,In the electrolyte injection hole sealing structure of the lithium thionyl chromide battery which SPOT welds and seals the electrolyte injection hole of the battery head using a predetermined welding material, 상기 용접용 자재는 상기 주입구(10)의 내주면에 접하여 삽입되는 원통형의 주입구 삽입부재(21)와,The welding material is a cylindrical inlet insert member 21 is inserted into contact with the inner peripheral surface of the inlet 10, 상기 주입구 삽입부재(21)의 상부면에 접하여 일체로 형성된 판형상의 주입구 덮개(22)로 구성되어 리벳형상을 가지는 것을 특징으로 하는 리튬 티오닐 크로라이드전지의 전해액 주입구 봉인구조.The electrolyte injection hole sealing structure of the lithium thionyl chromide battery, characterized in that it has a rivet shape consisting of a plate-shaped injection hole cover 22 integrally formed in contact with the upper surface of the injection hole insertion member (21).
KR20020029009U 2002-09-27 2002-09-27 A electrolytic solution injection hole sealing structure of lithium thionyl chloride battery KR200305510Y1 (en)

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