KR100778407B1 - Secondary Battery with Indicating Paper - Google Patents

Secondary Battery with Indicating Paper Download PDF

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Publication number
KR100778407B1
KR100778407B1 KR1020020010892A KR20020010892A KR100778407B1 KR 100778407 B1 KR100778407 B1 KR 100778407B1 KR 1020020010892 A KR1020020010892 A KR 1020020010892A KR 20020010892 A KR20020010892 A KR 20020010892A KR 100778407 B1 KR100778407 B1 KR 100778407B1
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South Korea
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identification
case
identification sheet
secondary battery
paper
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KR1020020010892A
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Korean (ko)
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KR20030071264A (en
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서경원
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삼성에스디아이 주식회사
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

식별지를 정확한 위치에 부착하는 것이 가능하고 식별지의 불필요한 소모를 방지할 수 있도록, 정확한 위치에 케이스에 형성된 투시창 또는 확인구멍 부분에 식별잉크가 외부를 향하여 위치하도록 식별지를 부착하고, 케이스와 전극군의 조립작업을 행하여 제조하는 식별지를 부착한 이차전지를 제공한다.In order to be able to attach the identification sheet to the correct position and to prevent unnecessary consumption of the identification sheet, attach the identification sheet so that the identification ink is located outward on the viewing window or the confirmation hole formed in the case at the correct position, Provided is a secondary battery provided with an identification sheet produced by performing assembly work.

식별지는 케이스에 형성된 확인구멍의 크기보다 넓은 면적으로 형성되는 바탕지와, 바탕지의 한쪽면에 케이스에 형성된 확인구멍의 크기에 대응하는 크기로 인쇄되고 수분이 흡수되면 변색이 이루어지는 식별잉크와, 바탕지의 한쪽면에 도포되고 케이스에 형성된 확인구멍의 크기에 대응하는 부분을 제외하고 나머지부분에 형성되는 접착층과, 접착층을 보호하기 위하여 분리가능하게 접착층에 부착되는 이형지를 포함한다.The identification sheet is formed of a base paper formed with a larger area than the size of the identification hole formed in the case, an identification ink printed on one side of the substrate corresponding to the size of the identification hole formed in the case and discolored when water is absorbed, and An adhesive layer formed on the remaining portion except for a portion applied to one side of the paper and corresponding to the size of the confirmation hole formed in the case, and a release paper detachably attached to the adhesive layer to protect the adhesive layer.

이차전지, 식별지, 침수지, 수분, 변색, 수성잉크, 접착제, 케이스, 이형지Rechargeable Battery, Identification Paper, Immersion Paper, Moisture, Discoloration, Water-based Ink, Adhesive, Case, Release Paper

Description

식별지를 부착한 이차전지 {Secondary Battery with Indicating Paper}Secondary Battery with Identification Paper {Secondary Battery with Indicating Paper}

도 1은 본 발명에 따른 식별지를 부착한 이차전지의 일실시예를 나타내는 부분확대 측면도이고,1 is a partially enlarged side view showing an embodiment of a secondary battery having an identification sheet according to the present invention;

도 2는 도 1의 A-A선 확대 단면도이고,2 is an enlarged sectional view taken along the line A-A of FIG.

도 3은 본 발명에 따른 식별지를 부착한 이차전지의 일실시예에 있어서 식별지를 나타내는 단면도이고,3 is a cross-sectional view showing an identification sheet in one embodiment of a secondary battery having an identification sheet according to the present invention;

도 4는 본 발명에 따른 식별지를 부착한 이차전지의 일실시예에 있어서 이형지를 제거한 상태의 식별지를 나타내는 평면도이고,4 is a plan view illustrating the identification paper in a state in which a release paper is removed in an embodiment of a secondary battery provided with an identification paper according to the present invention;

도 5는 종래 이차전지에 사용하는 식별지의 일예를 나타내는 단면도이다.5 is a cross-sectional view showing an example of an identification sheet used in a conventional secondary battery.

본 발명은 식별지를 부착한 이차전지에 관한 것으로서, 식별지를 부착하는 작업이 정확하게 이루어지고 식별지의 소모를 절감할 수 있도록 식별지를 케이스에 설치한 다음 전극군을 조립하는 식별지를 부착한 이차전지에 관한 것이다.The present invention relates to a secondary battery having an identification sheet, and to a secondary battery having an identification sheet installed on the case and then assembled with an electrode group so that the operation of attaching the identification sheet can be made accurately and the consumption of the identification sheet can be reduced. will be.

일반적으로 이차전지는 충전과 방전을 반복하면서 장기간에 걸쳐 사용하는 전지로서, 수명의 장기화가 필요하다. In general, secondary batteries are batteries that are used for a long time while repeating charging and discharging.                         

상기한 이차전지에 있어서 내부에 수분이 유입되는 경우에는 성능이 저하될 뿐만 아니라 내구수명이 현저하게 단축된다.In the secondary battery, when moisture is introduced into the secondary battery, not only the performance is deteriorated but also the durability life is significantly shortened.

그러나 이차전지의 경우에는 케이스가 금속으로 이루어져 있으므로 내부에 수분이 유입되었느지의 여부를 확인할 수 없어, 전지의 성능이 저하된 경우에 원인을 정확하게 파악하는 것이 매우 힘들다.However, in the case of the secondary battery, since the case is made of metal, it is impossible to determine whether moisture is introduced into the battery, and it is very difficult to accurately determine the cause when the performance of the battery is degraded.

따라서 종래 이차전지에 있어서 내부로 수분이 유입되었는지의 여부를 확인하기 위하여 수분을 흡수하는 경우에는 변색이 되는 수성잉크가 인쇄된 식별지를 내부에 부착하고, 이 식별지를 외부에서 확인할 수 있도록 케이스에는 투시창 또는 확인구멍을 설치한다.Therefore, in a conventional secondary battery, when absorbing moisture to check whether water has flowed into the inside, a water-based ink that is discolored is attached to the inside of an identification sheet printed thereon, and a viewing window is provided on the case so that the identification sheet can be checked from the outside. Or install a confirmation hole.

종래 이차전지는 도 5에 나타낸 바와 같이, 바탕지(2)의 한쪽면에는 수분을 흡수하면 변색되는 수성잉크(4)를 인쇄하고, 바탕지(2)의 반대쪽면에는 접착제(6)를 도포하고 이형지(8)를 부착한 식별지를 사용한다.In the conventional secondary battery, as shown in FIG. 5, one side of the base paper 2 is printed with an aqueous ink 4 which is discolored when water is absorbed, and an adhesive 6 is applied to the opposite side of the base paper 2. And an identification sheet with a release paper 8 attached thereto.

먼저 식별지의 이형지(8)를 제거한 다음, 전극군의 케이스에 형성된 투시창 또는 확인구멍의 위치에 대응되는 부분에 접착제(6)를 이용하여 식별지를 부착하고, 케이스에 전극군을 조립한다.First, the release paper 8 of the identification sheet is removed, and then the identification sheet is attached to the portion corresponding to the position of the viewing window or the confirmation hole formed in the case of the electrode group using the adhesive 6, and the electrode group is assembled to the case.

상기와 같이 조립하면 투시창 또는 확인구멍으로 식별지의 수성잉크(4)부분이 보이게 되고, 수성잉크(4)부분이 변색되는지의 여부에 의해 전지 내부로 수분이 유입되었는지의 여부를 판단할 수 있다.When assembled as described above, the aqueous ink 4 portion of the identification sheet is visible through the see-through window or the confirmation hole, and it is possible to determine whether water has flowed into the battery by whether the aqueous ink 4 portion is discolored.

상기와 같이 이루어지는 종래 이차전지에 있어서는 식별지를 전극군에 부착 한 다음 케이스에 조립하므로, 투시창 또는 확인구멍의 위치와 식별지의 부착위치를 정확하게 일치시키는 것이 매우 어렵다.In the conventional secondary battery as described above, since the identification sheet is attached to the electrode group and then assembled in the case, it is very difficult to exactly match the position of the viewing window or the confirmation hole with the attachment position of the identification sheet.

따라서 확실하게 투시창 또는 확인구멍으로 식별지의 수성잉크(4)부분이 보이도록 하기 위하여 식별지를 투시창 또는 확인구멍의 크기보다 훨씬 넓게 형성하여 부착한다. 이와 같이 하는 경우에는 식별지의 소모가 많다.Therefore, the identification sheet is formed to be much wider than the size of the viewing window or identification hole and attached so that the aqueous ink 4 portion of the identification sheet can be clearly seen through the viewing window or identification hole. In this case, a lot of identification paper is consumed.

본 발명의 목적은 상기와 같은 문제점을 해결하기 위한 것으로서, 케이스에 식별지를 부착한 상태에서 전극군을 조립하도록 이루어지므로 일정한 위치에 정확하게 식별지를 부착하는 것이 가능하고 식별지의 불필요한 낭비를 최소화하는 것이 가능한 식별지를 부착한 이차전지를 제공하기 위한 것이다.An object of the present invention is to solve the above problems, it is made to assemble the electrode group in the state attached to the identification sheet, it is possible to accurately attach the identification sheet in a certain position and it is possible to minimize unnecessary waste of the identification sheet It is to provide a secondary battery with an identification sheet.

본 발명이 제안하는 식별지를 부착한 이차전지는 케이스에 형성된 투시창 또는 확인구멍 부분에 식별잉크가 외부를 향하여 위치하도록 식별지를 부착하고, 케이스와 전극군의 조립작업을 행하여 제조한다.The secondary battery having the identification sheet proposed by the present invention is manufactured by attaching the identification sheet to the viewing window or the confirmation hole portion formed in the case so that the identification ink is located outward and assembling the case and the electrode group.

상기한 식별지는 케이스에 형성된 투시창 또는 확인구멍의 크기보다 넓은 면적으로 형성되는 바탕지와, 상기한 바탕지의 한쪽면에 케이스에 형성된 투시창 또는 확인구멍의 크기에 대응하는 크기로 인쇄되고 수분이 흡수되면 변색이 이루어지는 식별잉크와, 상기한 바탕지의 한쪽면에 도포되고 케이스에 형성된 투시창 또는 확인구멍의 크기에 대응하는 부분을 제외하고 나머지부분에 형성되는 접착층을 포함한다.When the identification sheet is printed with a size corresponding to the size of the base paper formed in a wider area than the size of the viewing window or the confirmation hole formed in the case, and the size of the viewing window or the confirmation hole formed in the case on one side of the base paper, the moisture is absorbed. It is included in the identification ink to be discolored, and the adhesive layer formed on the remaining portion except for a portion applied to one side of the base paper and corresponding to the size of the viewing window or confirmation hole formed in the case.

상기한 식별지는 상기한 접착층을 보호하기 위하여 분리가능하게 상기한 접 착층에 부착되는 이형지를 더 포함한다.The identification sheet further includes a release paper detachably attached to the adhesive layer to protect the adhesive layer.

다음으로 본 발명에 따른 식별지를 부착한 이차전지의 바람직한 실시예를 도면을 참조하여 상세하게 설명한다.Next, a preferred embodiment of a secondary battery having an identification sheet according to the present invention will be described in detail with reference to the drawings.

먼저 본 발명에 따른 식별지를 부착한 이차전지의 일실시예는 도 1 및 도 2에 나타낸 바와 같이, 케이스(20)에 형성된 확인구멍(22) 부분에 식별잉크(14)가 외부를 향하여 위치하도록 식별지(10)를 부착하고, 케이스(20)와 전극군(30)의 조립작업을 행하여 제조한다.First, according to an embodiment of the secondary battery having an identification sheet according to the present invention, as shown in FIGS. 1 and 2, the identification ink 14 is positioned toward the outside in a part of the confirmation hole 22 formed in the case 20. The identification sheet 10 is attached and manufactured by assembling the case 20 and the electrode group 30.

상기한 식별지(10)는 도 3 및 도 4에 나타낸 바와 같이, 케이스(20)에 형성된 확인구멍(22)의 크기보다 넓은 면적으로 형성되는 바탕지(12)와, 상기한 바탕지(12)의 한쪽면에 케이스(20)에 형성된 확인구멍(22)의 크기에 대응하는 크기로 인쇄되고 수분이 흡수되면 변색이 이루어지는 식별잉크(14)와, 상기한 바탕지(12)의 한쪽면에 도포되고 케이스(20)에 형성된 확인구멍(22)의 크기에 대응하는 부분을 제외하고 나머지부분에 형성되는 접착층(16)을 포함한다.As shown in FIGS. 3 and 4, the identification sheet 10 includes a base paper 12 formed with a larger area than the size of the confirmation hole 22 formed in the case 20, and the base paper 12 described above. On one side of the backing paper 12 and the identification ink 14, which is printed on a side corresponding to the size of the confirmation hole 22 formed on the case 20 and absorbed by water, and discolors. The adhesive layer 16 is formed on the remaining portion except for a portion applied and corresponding to the size of the confirmation hole 22 formed in the case 20.

상기한 식별지(10)는 상기한 접착층(16)을 보호하기 위하여 분리가능하게 상기한 접착층(16)에 부착되는 이형지(18)를 더 포함한다.The identification sheet 10 further includes a release paper 18 that is detachably attached to the adhesive layer 16 to protect the adhesive layer 16.

상기와 같이 이루어지는 식별지(10)에 있어서 이형지(18)를 제거하고, 상기한 식별잉크(14) 부분이 확인구멍(22)으로 노출된 상태에서 케이스(20)의 내면에 접착층(16)을 밀착시켜 부착하고, 케이스(20)에 전극군(30)을 조립한다.The release sheet 18 is removed from the identification sheet 10 formed as described above, and the adhesive layer 16 is applied to the inner surface of the case 20 while the identification ink 14 portion is exposed to the identification hole 22. The electrode group 30 is assembled to the case 20 in close contact with each other.

즉 식별지(10)를 케이스(20)의 확인구멍(22)에 정확하게 위치시켜 접착 고정한 상태에서 전극군(30)을 조립하므로, 전극군(30)을 조립하는 과정에서 식별지(10)의 위치를 확인할 필요가 없다.That is, since the electrode group 30 is assembled in the state in which the identification sheet 10 is correctly positioned and fixed to the confirmation hole 22 of the case 20, the identification sheet 10 is assembled in the process of assembling the electrode group 30. There is no need to check the location.

상기와 같이 식별지(10)를 부착하는 경우에는 수분이 유입되는 경우에는 식별잉크(14)가 변색되므로 상기한 확인구멍(22)을 통하여 이를 육안으로 확인할 수 있으며, 전지의 수명과 성능을 예측하는 것이 가능하다.In the case of attaching the identification sheet 10 as described above, the identification ink 14 is discolored when moisture is introduced, so it can be visually confirmed through the identification hole 22, and the life and performance of the battery are predicted. It is possible to do

상기에서는 케이스(20)에 확인구멍(22)을 형성하는 것으로 설명하였지만, 확인구멍(22) 대신에 내부를 볼 수 있는 투시창을 설치하는 것도 가능하다.In the above description, the confirmation hole 22 is formed in the case 20, but instead of the confirmation hole 22, it is also possible to provide a see-through window for viewing the inside.

상기에서는 본 발명에 따른 식별지를 부착한 이차전지의 바람직한 실시예에 대하여 설명하였지만, 본 발명은 이에 한정되는 것이 아니고 특허청구범위와 발명의 상세한 설명 및 첨부한 도면의 범위 안에서 여러가지로 변형하여 실시하는 것이 가능하고, 이 또한 본 발명의 범위에 속한다.In the above, a preferred embodiment of a secondary battery having an identification sheet according to the present invention has been described. However, the present invention is not limited thereto, and the present invention is not limited thereto. It is possible and this also belongs to the scope of the present invention.

상기와 같이 이루어지는 본 발명에 따른 식별지를 부착한 이차전지에 의하면, 식별지를 케이스의 확인구멍 또는 투시창쪽에 부착하여 설치하므로, 항상 정확한 위치에 식별지를 부착하는 것이 가능하고, 이 때문에 불필요하게 식별지를 크게 형성하지 않아도 되므로 종래에 비하여 식별지의 소모가 크게 절감된다.According to the secondary battery with the identification sheet according to the present invention made as described above, the identification sheet is attached to the confirmation hole or the viewing window side of the case, so that the identification sheet can be attached at the correct position at all times. Since it is not necessary to form, the consumption of the identification sheet is greatly reduced as compared with the prior art.

그리고 본 발명에 따른 식별지를 부착한 이차전지에 의하면, 식별지가 정확한 위치에 부착된 상태에서 전극군의 조립이 이루어지므로, 종래 전극군을 조립하면서 식별지의 위치를 케이스의 확인구멍쪽에 맞추기 위한 작업이 불필요하여, 조립공정이 간단하고 용이하게 이루어지며, 생산성이 크게 향상된다.In addition, according to the secondary battery having the identification sheet according to the present invention, since the assembly of the electrode group is made in the state where the identification sheet is attached at the correct position, the operation for matching the position of the identification sheet to the confirmation hole of the case while assembling the conventional electrode group is performed. Since it is unnecessary, the assembly process is simple and easy, and productivity is greatly improved.

Claims (3)

케이스에 형성된 투시창 또는 확인구멍 부분에 식별잉크가 외부를 향하여 위치하도록 식별지를 부착하고,The identification sheet is attached to the viewing window or the confirmation hole formed in the case so that the identification ink is located outward. 케이스와 전극군의 조립작업을 행하여 제조하는 식별지가 부착된 이차전지.A secondary battery with an identification sheet produced by assembling the case and the electrode group. 제 1 항에 있어서,The method of claim 1, 상기한 식별지는 케이스에 형성된 투시창 또는 확인구멍의 크기보다 넓은 면적으로 형성되는 바탕지와;The identification sheet includes a base sheet formed with a larger area than the size of the viewing window or confirmation hole formed in the case; 상기한 바탕지의 한쪽면에 케이스에 형성된 투시창 또는 확인구멍의 크기에 대응하는 크기로 인쇄되고 수분이 흡수되면 변색이 이루어지는 식별잉크; 및An identification ink which is printed on one side of the base paper with a size corresponding to the size of a viewing window or confirmation hole formed in the case and is discolored when water is absorbed; And 상기한 바탕지의 한쪽면에 도포되고 케이스에 형성된 투시창 또는 확인구멍의 크기에 대응하는 부분을 제외하고 나머지부분에 형성되며 케이스의 내면에 접착고정되는 접착층An adhesive layer applied to one side of the base paper and formed on the remaining portion except for a portion corresponding to the size of a viewing window or a confirmation hole formed in the case and fixed to the inner surface of the case. 을 포함하는 식별지가 부착된 이차전지.Secondary battery is attached to the identification including a. 제 2 항에 있어서,The method of claim 2, 상기한 식별지는 상기한 접착층을 보호하기 위하여 분리가능하게 상기한 접착층에 부착되고 케이스의 내면에 접착층을 접착시킬 때에 제거하는 이형지를 더 포함하는 식별지가 부착된 이차전지.The identification sheet is a secondary battery attached to the identification sheet further comprises a release paper detachably attached to the adhesive layer in order to protect the adhesive layer and removed when adhering the adhesive layer to the inner surface of the case.
KR1020020010892A 2002-02-28 2002-02-28 Secondary Battery with Indicating Paper KR100778407B1 (en)

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KR101074784B1 (en) 2010-05-13 2011-10-19 삼성에스디아이 주식회사 Battery pack
US9034498B2 (en) 2010-12-14 2015-05-19 Samsung Sdi Co., Ltd. Secondary battery

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KR100965691B1 (en) 2007-11-13 2010-06-24 삼성에스디아이 주식회사 Recahgeable battery
JP5945435B2 (en) * 2012-03-16 2016-07-05 本田技研工業株式会社 Battery module

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KR101074784B1 (en) 2010-05-13 2011-10-19 삼성에스디아이 주식회사 Battery pack
US8604749B2 (en) 2010-05-13 2013-12-10 Samsung Sdi Co., Ltd. Battery pack
US9034498B2 (en) 2010-12-14 2015-05-19 Samsung Sdi Co., Ltd. Secondary battery

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