KR870001660B1 - Alkali battery in separator and the manufacture method - Google Patents

Alkali battery in separator and the manufacture method Download PDF

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Publication number
KR870001660B1
KR870001660B1 KR1019850003566A KR850003566A KR870001660B1 KR 870001660 B1 KR870001660 B1 KR 870001660B1 KR 1019850003566 A KR1019850003566 A KR 1019850003566A KR 850003566 A KR850003566 A KR 850003566A KR 870001660 B1 KR870001660 B1 KR 870001660B1
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South Korea
Prior art keywords
cylinder
battery
separator
fixing member
synthetic paper
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KR1019850003566A
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Korean (ko)
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KR860009506A (en
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이윤선
오화섭
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주식회사 서통
김순강
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Priority to KR1019850003566A priority Critical patent/KR870001660B1/en
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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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • 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
    • H01M10/24—Alkaline accumulators
    • H01M10/28—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/411—Organic material
    • H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

This invention relates to the manufacturing method of a separator for alkali battery which improves chemical stability of the alkali electrolyte and physical strength of the battery. The bottom (2) of cylindrical synthetic paper (1) is sealed up with a fixing material (5) and painted with a viscous material such as wax or hot melt. After this process. The synthetic paper (1) is fixed to the bottom (7) of the battery (3).

Description

알칼리 전지용 세퍼레이터(Separator) 및 그 제조방법Separator for alkaline battery and manufacturing method thereof

제1도는 본 발명 알칼리 전지의 단면도.1 is a cross-sectional view of the alkaline battery of the present invention.

제2(a)도-제2(d)도는 본 발명 세퍼레이터의 단면도.2 (a) to 2 (d) are cross-sectional views of the separator of the present invention.

제3(a)도-제3(d)도는 본 발명 세퍼레이터의 가공전의 단면도.3 (a) to 3 (d) are cross-sectional views of the separator of the present invention before processing.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 합성종이 원통 2 : 하단부1: synthetic paper cylinder 2: lower part

3 : 건전지 5 : 고정부재3: battery 5: fixing member

6 : 점성물질 7 : 저면고정부6: viscous substance 7: bottom solidification

A : 여유간격A: clearance

본 발명은 알칼리 전지용 세퍼레이터(Separator) 및 그 제조 방법에 관한 것이다.TECHNICAL FIELD This invention relates to a separator for alkaline batteries, and its manufacturing method.

일반적으로 원통형 알칼리 전지의 세퍼레이터는 그 재질이 합성고분자 물질이며, 이를 종이의 특성을 부여하여 원통형으로 가공하게 되는 것이며, 합성종이 원통의 하단부를 고정부재로 밀봉되게 하고 있는 것이다.In general, the separator of a cylindrical alkali battery is made of a synthetic polymer material, which gives the characteristics of paper and is processed into a cylindrical shape, and the synthetic species is to seal the lower end of the cylinder with a fixing member.

발명은 합성종이 원통의 하단부를 밀봉 시킴에 있어, 원통과 같은 재질로 일체 성형되게 한 일체 성형부나, 폴리비닐 알코올, 카르복메틸 셀루로즈, 접착제 등으로 접착고 정되는 고정부재에 왁스 또는 핫멜트 등의 점성물질이 일정 간격으로 도포되게 하여 양극 활물질 및 음극활물질이 통과하지 않도록 하므로서 알칼리 전해액에 화학적으로 안정되고 물리적 강도를 높일수 있게한 것이다. 또한 본 발명은 합성종이 원통의 하단부에 왁스 또는 핫멜트 등의 점성물질을 도포시켜 건전지내의 저면 고정부에 긴밀한 밀착력으로 유동없이 안정되어 위치 고정되게 조립 시킬수 있도록 하여, 건전지 제품의 자동화 공정에 불량품이 없는 제품을 양산할 수 있게 한 목적에 있는 것이다.The invention is to seal the lower end of the cylinder, the synthetic molded part integrally molded with a material such as a cylinder, or a wax or hot melt, such as a fixed member bonded to and fixed with polyvinyl alcohol, carboxymethyl cellulose, adhesives, etc. By applying a viscous material at regular intervals of the positive electrode active material and the negative electrode active material so as not to pass through it is chemically stable in the alkaline electrolyte and to increase the physical strength. In addition, the present invention by applying a viscous material such as wax or hot melt to the lower end of the synthetic paper cylinder can be assembled in a stable and fixed position without flow due to close adhesion to the bottom fixing portion in the battery, there is no defect in the automated process of battery products The purpose is to enable mass production of the product.

종래에는 합성고분자 물질의 합성종이를 여러겹으로 겹쳐 원통형으로 형성하여 원통의 접착 부위를 폴리비닐 알코올, 카르복시메틸셀루로즈, 접착제등으로 접착 봉합 시켰으며, 도면 제3(a)도와 같은 경우에는 원통의 하단부를 절곡시켜 단턱을 하여 동일 재질 또는 이질적인 재질의 원판이 삽입 고정되게 접착하여서 원통 하단부가 밀봉되게 하는 방법이 있었고, 도면 제3(b)도와 같이 원통의 하단부를 절곡 가공하지 않고 원주가 절곡된 환형캡이 하단부에 삽입 고정되게 접착시키는 방법이 있었던 것이다.Conventionally, by overlapping the synthetic paper of synthetic polymer material in multiple layers to form a cylinder, the adhesive site of the cylinder is adhesively sealed with polyvinyl alcohol, carboxymethyl cellulose, an adhesive, and the like. There was a method of bending the lower end of the cylinder to be stepped to attach and fix the disc of the same material or heterogeneous material so that the lower end of the cylinder was sealed. As shown in FIG. There was a method of adhering the annular cap is inserted into the lower end fixed.

그리고, 도면 제3(c)도와 같이 원통의 하단부에 원통의 내경 직경과 동일 직경으로 형성된 원판이 하단부의 내벽에 긴밀히 밀착 고정되게 하여서, 밀봉 되게 하는 방법이 있으며, 도면 제3(d)도와 같이 원통의 외경과 동일 직경으로 원판이 원통 하단부에 접착 고정되게 하는 방법이 있었던 것이다.As shown in FIG. 3 (c), the disc formed at the lower end of the cylinder with the same diameter as the inner diameter of the cylinder is tightly fixed to the inner wall of the lower end, thereby sealing the disc. As shown in FIG. There was a method for the disc to be adhesively fixed to the lower end of the cylinder with the same diameter as the outer diameter of the cylinder.

이러한 종래의 방법은 원통형으로 하단부에 원판 또는 환형캡의 접착성형으로 틈이 형성되기 쉽고, 알칼리 전해액(수산화칼륨, 수산화 나트륨의 용액)에 화학적으로 약하여, 형성된 틈으로 전해액이 누출함으로써 알칼리 전지의 누액불량 원인이 되였던 것이다.This conventional method has a cylindrical shape and easily forms a gap by adhesive molding of a disc or annular cap at the lower end, and is chemically weak in alkaline electrolyte solution (a solution of potassium hydroxide and sodium hydroxide). It was the cause of the failure.

본 발명은 종래의 결점들을 해결하기 위하여 합성종이 원통의 하단부에 원판 또는 환형캡으로 접착 고정시킴에 있어, 원통의 길이에 여유 간격을 주어 원통을 형성하고 원판 및 환형캡의 고정부재가 접착고정되게 한후, 여유 간격 만큼의 두께로 왁스 또는 핫멜트 등의 점성물질이 원통의 원판 또는 환형캡 저면에 도포 되도록 하여, 원통 하단부를 완벽하게 폐쇄 봉함시켜 건전지 내의 양극 활물질 및 음극활물질이 서로 통과치 못하게 하므로써 알칼리 전해액이 화학적으로 안정되고 물리적 강도를 높이도록 한 것이다. 이를 첨부 도면에 의하여 설명하면 다음과 같다.In the present invention, in order to solve the drawbacks of the conventional synthetic adhesive bond to the lower end of the cylinder with a disc or annular cap, give a clearance to the length of the cylinder to form a cylinder and the fixing member of the disc and the annular cap is fixed Afterwards, viscous material such as wax or hot melt is applied to the bottom of the cylinder or the bottom of the annular cap at the thickness of the clearance gap, and the bottom of the cylinder is completely sealed to prevent the positive electrode active material and the negative electrode active material in the battery from passing through each other. The electrolyte is chemically stable and increases physical strength. This will be described with reference to the accompanying drawings.

본 발명은 재질이 합성고분자 물질의 합성종이를 여러겹으로 겹쳐 말은 원통(1)을 형성함에 있어, 합성종이 원통(1)의 하단부(2)를 절곡하여 단턱이 형성되게 하는 도면 제2(a)도에 있어서는, 원통(1)의 하단부(2)를 절곡 시키면서 건전지(3)내에 세퍼레이터(4)로 설치되는 원통(1)의 길이에, 여유간격(A)을 주어, 하단부(2)에 원통(1)과 동일 재질 또는 이질적인 재질의 원판으로된 고정부재(5)를 접착 고정시킨후, 원통(1)의 하단부(2)에 여유간격(A)만큼으로 왁스 또는 핫멜트 등의 점성물질(6)이 도포되게 하고 있는 것이다.In the present invention, when the material forms a cylinder 1 in which multiple layers of synthetic paper of synthetic polymer material are rolled up, the synthetic paper bends the lower end 2 of the cylinder 1 so that a step is formed. In the a) diagram, the lower end portion 2 of the cylinder 1 is bent while giving the clearance A in the length of the cylinder 1 installed by the separator 4 in the battery 3 while bending the lower end portion 2 of the cylinder 1. After fixing the fixing member (5) made of a disc of the same material or heterogeneous material as that of the cylinder (1), the viscous material such as wax or hot melt on the lower end portion (2) of the cylinder (1) by the clearance gap (A). (6) is to be applied.

그리고 본 발명은 도면 제2(b)도와 같이 합성 종이원통(1)의 내경으로 삽입되는 캡의 고정부재(5)고정에 있어서도, 원통(1)의 길이에 여유간격(A)을 두어 캡을 원통(1)의 내벽 저면에 접착 고정시킨후, 여유간격(A)만큼 점성물질(6)에 도포되게 하여 밀봉 되도록 하며, 도면 제2(c)도, 제2(d)도에 있어서도 원통(1)의 길이에 여유간격(A)을 주어 원판의 고정부재(5)를 원통(1)의 하단부(2)에 접착 고정시킨후, 여유 간격(A)만큼 점성물질(6)이 도포되게 하고 있는 것이다. 즉, 본 발명은 합성수지 원통(1)의 하단부(2)를 밀봉되게한 고정부재(5)에 왁스 또는 핫멜트 등의 점성물질(6)을 일정두께로 도포하여 도면 제1도와 같이 건전지(3)내의 저면 고정부(7)에 밀착 고정시킬수 있는세 퍼레이터(4)를 제공할 수 있는 것이다. (8)은 나일론 폴리에틸렌 혹은 고무등으로 된 팩킹이며, 그 하부에 양극(9)(이산화 망간과 흑연)이 형성 되고, 세퍼레이터(4)의 내에는 카르복시메틸 셀룰로스, 가성칼리산화 아연, 아연분말 및 물의 혼합물로된 음극(10)이 형성되어 있고, 세퍼레이터(4)내에 금속접전자(11)가 설치되여 있는 것이다.In addition, in the present invention, in the fixing of the fixing member 5 of the cap inserted into the inner diameter of the synthetic paper cylinder 1, as shown in FIG. 2 (b), the cap is provided with the clearance gap A in the length of the cylinder 1. After adhesively fixing to the bottom of the inner wall of the cylinder (1), it is applied to the viscous material (6) by the clearance gap (A) so as to be sealed, and also in the drawing (2) (c) and 2 (d) By giving the clearance (A) to the length of 1) to fix the fixing member (5) of the disc to the lower end (2) of the cylinder (1), and then to apply the viscous material (6) by the clearance (A) It is. That is, according to the present invention, the viscous material 6 such as wax or hot melt is applied to the fixing member 5 which seals the lower end 2 of the synthetic resin cylinder 1 to a predetermined thickness, and thus the battery 3 is shown in FIG. It is possible to provide the separator 4 which can be tightly fixed to the bottom fixing part 7 inside. (8) is a packing made of nylon, polyethylene or rubber, and an anode 9 (manganese dioxide and graphite) is formed at the bottom thereof, and in the separator 4, carboxymethyl cellulose, caustic zinc oxide, zinc powder and A cathode 10 made of a mixture of water is formed, and a metal contact 11 is provided in the separator 4.

이와 같은 본 발명은 합성종이 원통(1)의 하단부(2)에 고정부재(5)가 접착 고정되게 하면서 도면 제1도와 같이 건전지(3)내에 설치하는 원통(1)의 길이보다 작게 여유간격(A)을 두고 고정부재(5)를 원통(1)의 하단부(2)에 접착제로 접착 고정되게 1차 가공을하며, 1차 가공 상태에서는 원통(1)과 고정부재(5)의 접착에 서로 틈이 생길 염려가 있는 것이고, 완벽한 밀봉 상태가 될수 없는 것이다.In the present invention as described above, while the fixing member 5 is adhesively fixed to the lower end 2 of the cylinder 1, as shown in FIG. 1, the clearance is smaller than the length of the cylinder 1 installed in the battery 3 ( A) and the fixing member 5 to the lower end (2) of the cylinder (1) to the first processing to be fixed with an adhesive, in the first processing state, the adhesion between the cylinder 1 and the fixing member (5) There is a risk of cracking, and it cannot be sealed.

따라서 본 발명은 원통(1)에 고정부재(5)의 접착제 고정이 끝난후 건조시켜 원통(1)하단부 (2)의 고정부재(5)주위와 고정부재(5)접착부위의 틈새를 왁스 또는 핫멜트 등의 점성물질(6)로 상기 여유 간격(A)의 두께만큼 도모시키므로써, 고정부재(5)의 접착에서 발생 할수 있는 틈색를 완벽에 가깝게 밀봉시킬 수 있는 것이므로, 알칼리 전해액(수산화칼륨, 수산화 나트륨의 용액)의 누출로 인한 알칼리 전지푸액불량의 요인을 제거 시켜주는 것이다. 또한, 원통(1)하단부(2)에 여유간격(A)의 두께로 점성력이 우수한 점성물질(6)이 건전지(3)내의 저면 고정부(7)와 밀착접촉되어 합성 종이 원통(1)의 밀봉 효과의 유동없는 안정성을 크게 높여 주는 효과가 있는 것이다.Accordingly, the present invention is dried after the fixing of the fixing member 5 to the cylinder (1) is dried and the wax or the gap between the fixing member (5) around the fixing member (5) of the lower end of the cylinder (1) By promoting the thickness of the clearance gap (A) with a viscous material (6) such as hot melt, it is possible to seal the gap color that may occur in the adhesion of the fixing member 5 to almost perfect, so that the alkaline electrolyte solution (potassium hydroxide, It is to eliminate the cause of alkaline battery failure caused by leakage of sodium hydroxide solution). In addition, a viscous material (6) having excellent viscous force at the thickness of the clearance gap (A) at the lower end (2) of the cylinder (1) is brought into close contact with the bottom fixing part (7) in the battery (3) so that the synthetic paper cylinder (1) There is an effect that greatly improves the flow-free stability of the sealing effect.

그리고 본 발명은 도면 제1도와 같은 알칼리 건전지(3)에 있어서 종래의 구조를 가진 세퍼레이터를 사용한 건전지와 본 발명의 구조를 가진 세퍼레이터를 사용한 건전지 각각 152개를 시험 제조하여 온도 45±2℃상태 습도 65±20℃에서 30일간 저장후 건전지 외부에 나타나는 누액을 조사 하였는바 다음과 같았다.In the present invention, in the alkaline battery 3 as shown in FIG. 1, 152 batteries using a separator having a conventional structure and 152 batteries using a separator having the structure of the present invention were tested and manufactured at a temperature of 45 ± 2 ° C. After leakage for 30 days at 65 ± 20 ℃, the leakage of the battery was investigated.

Figure kpo00001
Figure kpo00001

이상과 같이 본 발명의 세퍼레이터를 사용한 알칼리 건전지를 원통의 하단부를 완벽하게 폐쇄 봉함하였기 때문에 누액의 우려가 없을뿐만 아니라, 화학적으로 안정되고 물리적 강도를 더욱 높일수 있음을 알수 있는 것이다.As described above, since the alkaline battery using the separator of the present invention was completely closed and sealed at the lower end of the cylinder, there is no fear of leakage, and it can be seen that the chemical stability is stable and the physical strength can be further increased.

Claims (2)

(정정) 합성종이 원통(1)의 길이에 여유간격(A)을 주어 원통(1)의 하단부(2)에 고정부재(5)가 형성되게 한후 하단부(2)에 여유간격(A)만큼 왁스, 또는 핫멜트(Hot Melt)등의 점성물질(6)이 도포되게 함을 특징으로 한 알칼리 전지용 세퍼레이터(Separator)의 제조방법.(Correction) Synthetic paper gives the clearance (A) to the length of the cylinder (1) to form a fixing member (5) on the lower end (2) of the cylinder (1) and then wax as much as the clearance (A) on the lower end (2) And / or a viscous material (6) such as hot melt. (정정) 합성종이 원통(1)의 하단부 (2)를 밀봉 되게한 고정부재(5)에 왁스, 또는 핫멜트(Hot Melt)등의 점성물질(6)을 일정 두께로 도포하여 건전지(3) 내의 저면고 정부(7)에 밀착 고정되게한 알칼리 전지용 세퍼레이터(Separator).(Correction) A viscous material 6 such as wax or hot melt is applied to the fixing member 5 in which the synthetic paper seals the lower end 2 of the cylinder 1 to a predetermined thickness, thereby allowing the inside of the battery 3 to be fixed. Separator for alkali batteries which was made to adhere and fixed to the bottom solid state part 7.
KR1019850003566A 1985-05-23 1985-05-23 Alkali battery in separator and the manufacture method KR870001660B1 (en)

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