KR0125258B1 - Manufacturing method for battery electrode - Google Patents

Manufacturing method for battery electrode

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Publication number
KR0125258B1
KR0125258B1 KR1019930008823A KR930008823A KR0125258B1 KR 0125258 B1 KR0125258 B1 KR 0125258B1 KR 1019930008823 A KR1019930008823 A KR 1019930008823A KR 930008823 A KR930008823 A KR 930008823A KR 0125258 B1 KR0125258 B1 KR 0125258B1
Authority
KR
South Korea
Prior art keywords
electrode
manufacturing
nickel
plating bath
plating
Prior art date
Application number
KR1019930008823A
Other languages
Korean (ko)
Other versions
KR940027209A (en
Inventor
최성수
Original Assignee
배순훈
대우전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자주식회사 filed Critical 배순훈
Priority to KR1019930008823A priority Critical patent/KR0125258B1/en
Publication of KR940027209A publication Critical patent/KR940027209A/en
Application granted granted Critical
Publication of KR0125258B1 publication Critical patent/KR0125258B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0438—Processes of manufacture in general by electrochemical processing
    • H01M4/045—Electrochemical coating; Electrochemical impregnation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0404—Methods of deposition of the material by coating on electrode collectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
    • H01M4/383—Hydrogen absorbing alloys
    • H01M4/385—Hydrogen absorbing alloys of the type LaNi5
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/70—Carriers or collectors characterised by shape or form
    • H01M4/72—Grids
    • H01M4/74—Meshes or woven material; Expanded metal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte
    • H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Cell Electrode Carriers And Collectors (AREA)

Abstract

A fabrication method of an electrode of battery is provided to prevent a stripping of electrode materials and improve a conductivity. The method comprises the steps of: mixing an alloying powder made of a plating solution of Ni and an electrode material of LaNi4.7Al0.3 to a plating bath(1); diluting the powder into 300g/l; supplying a power source having an anode composed of Ni plate and a cathode composed of Fe network to the plating bath(1); and supplying an air to the plating bath, thereby forming Ni plating films. Thereby, it is possible to prevent the stripping of electrode materials.

Description

건전지의 전극제조방법Electrode manufacturing method of battery

제1도는 본 발명의 제조를 위한 도금장치.1 is a plating apparatus for the production of the present invention.

제2도는 본 발명의 전극단면도.2 is a cross-sectional view of the electrode of the present invention.

본 발명은 니켈도금액과 전극재료인 LaNi4.7Al0.3합금분말을 혼합하여 철그물망에 도금하므로서 전극성형시 전극물질의 박리를 방지하고 전기전도성을 개선하고자 발명한 건전지의 전극제조방법에 관한 것이다.The present invention relates to a method for manufacturing an electrode of a battery invented by mixing a nickel plating solution and LaNi 4.7 Al 0.3 alloy powder, which is an electrode material, to plate on an iron mesh net to prevent peeling of electrode material and to improve electrical conductivity during electrode formation.

종래에는 소형 건전지용 전극을 제조하는 방법으로, 분말의 전극 물질을 유기물질과 혼합한 뒤 철그물망에 고압으로 압착하여 소결 제조하였던 것으로, 이는 단순히 고압에 의하여 활성물질이 압착되어 있어 제조후 그 활성물질이 이탈하거나 박리가 빈번하였고, 더욱이 건전지 케이스에 삽입할 때 전극을 원형으로 절곡성형하여야 되는데 이때 박리가 더욱 심하여 전기 전도성이 떨어지게 되는 결점이 있었다.Conventionally, as a method of manufacturing a small battery electrode, the electrode material of the powder was mixed with an organic material and then sintered by pressing at high pressure on a steel net, which is simply pressed by the high pressure to the active material, the active after manufacture The material was separated or peeled frequently, and when inserting into the battery case, the electrode had to be bent in a circular shape, at which time the peeling was more severe and the electrical conductivity was lowered.

본 발명은 이러한 종래의 전극제조방법을 개선하고자 하는 것으로, 도금조내에 니켈도금액과, LaNi4.7Al0.3합금분말을 혼합하고, 양극은 니켈판으로, 음극은 철그물망으로 하여 전원을 공급하므로서 철그물망에 합금분말과 니켈이 공석도금되어 전극이 형성되도록 하는 것이다.The present invention is to improve such a conventional electrode manufacturing method, by mixing a nickel plating solution and LaNi 4.7 Al 0.3 alloy powder in a plating bath, the anode is a nickel plate, the cathode is a wire mesh net to supply power to the iron The alloy powder and nickel are plated on the mesh to form an electrode.

본 발명의 효과는 전극의 절곡성형시 전극물질의 박리를 방지하여 전기 전도성을 향상시키고자 하는 것이다.An effect of the present invention is to improve the electrical conductivity by preventing the peeling of the electrode material during bending of the electrode.

이하 본 발명의 제조방법을 상세히 설명한다.Hereinafter, the manufacturing method of the present invention will be described in detail.

도금조(1)내에 니켈도금액(5)과 전극재료인 LaNi4.7Al0.3합금분말(6)을 혼합하여 300g/l의 농도로 현탁시키고, 이때 합금분말의 분산정도를 향상시키기 위해 공기공급관(2)을 통해 공기를 공급시키면서 양극은 니켈판(3)으로, 음극은 철그물망(4)으로 하여 전원을 공급한다.The nickel plating solution 5 and the LaNi 4.7 Al 0.3 alloy powder 6, which is an electrode material, are mixed in the plating bath 1 and suspended at a concentration of 300 g / l. At this time, an air supply pipe ( While supplying air through 2), the anode is supplied with nickel plate 3 and the cathode is iron net mesh 4 to supply power.

따라서 철그물망(4)에 LaNi4.7Al0.3분말입자와 니켈이 도금되어 니켈도금층(6)이 형성되어 전극(10)이 제조되는 것으로, 니켈도금층(6)은 분말입자가 고르게 분산 도금되어 있어 전극물질의 공석효과를 높힐 수가 있고, 건전지 케이스에 삽입하기 위하여 전극을 원형으로 절곡성형시 전극도금된 전극물질이 박리되지 않을 뿐만 아니라 니켈 도금층에 의한 전기전도성이 향상 될 수가 있는 것이다.Accordingly, LaNi 4.7 Al 0.3 powder particles and nickel are plated on the iron mesh net 4 to form a nickel plated layer 6 to form an electrode 10. The nickel plated layer 6 is uniformly dispersed and plated with powder particles. The vacancy effect of the material can be increased, and the electrode-plated electrode material can not only be peeled off when the electrode is bent in a circle to be inserted into the battery case, and the electrical conductivity by the nickel plating layer can be improved.

이때 전기도금시 도금조내의 온도를 온도조절기(7)도 자동조절하여 전극제조의 품질을 높히도록 한다.At this time, the temperature controller 7 also automatically adjusts the temperature in the plating bath during electroplating to increase the quality of electrode manufacturing.

이하 실시예를 설명하면 다음과 같다.Hereinafter, the embodiments will be described.

[실시예]EXAMPLE

도금조내에 니켈도금액과 전극재료인 LaNi4.7Al0.3합금분말을 혼합하여 300g/l의 농도로 현탁시키고, 그 도금조내에 양극은 니켈판으로, 음극은 철그물망으로 전원을 공급하여 전기도금을 시작하며, 이때 공기공급관을 통해 공기를 공급시켜 합금분말이 고르게 분산되어 철그물망에 고르게 니켈과 함께 도금되도록 하여 전극을 제조하였다.In the plating tank, nickel plating solution and LaNi 4.7 Al 0.3 alloy powder, which is an electrode material, are mixed and suspended at a concentration of 300 g / l. In the plating tank, the anode is supplied with a nickel plate and the cathode is supplied with an iron mesh net. At this time, the electrode was manufactured by supplying air through the air supply pipe so that the alloy powder was evenly distributed and plated with nickel evenly on the iron net.

제조된 전극은 원형으로 절곡성형시 전극물질이 박리되지 않았으며, 또 니켈도금층에 의한 전기전도성이 향상 되었음을 알았다.It was found that the prepared electrode was not peeled off when the electrode was bent in a circular shape, and the electrical conductivity by the nickel plated layer was improved.

Claims (1)

LaNi4.7Al0.3합금분말을 사용하여 전극을 제조하는 것에 있어서, 도금조(1)내에 니켈도금액(5)과 전극재료인 LaNi4.7Al0.3합금분말을 혼합하여 300g/l의 농도로 현탁시키고, 그 도금조(1)내에 양극은 니켈판(3)으로, 음극은 철그물망(4)으로 전원을 공급하는 동시에 공기를 공급시키면서 합금분말(6)이 고르게 분산되도록 하여 니켈도금층(6)이 형성되도록 하는 것을 특징으로 하는 건전지의 전극제조방법.In manufacturing an electrode using LaNi 4.7 Al 0.3 alloy powder, the nickel plating solution 5 and LaNi 4.7 Al 0.3 alloy powder as an electrode material are mixed and suspended in a plating bath 1 at a concentration of 300 g / l, In the plating bath 1, the nickel plated layer 6 is formed by uniformly dispersing the alloy powder 6 while supplying air to the iron mesh net 4 and supplying air to the cathode with the nickel plate 3. Electrode manufacturing method of a battery, characterized in that.
KR1019930008823A 1993-05-21 1993-05-21 Manufacturing method for battery electrode KR0125258B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930008823A KR0125258B1 (en) 1993-05-21 1993-05-21 Manufacturing method for battery electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930008823A KR0125258B1 (en) 1993-05-21 1993-05-21 Manufacturing method for battery electrode

Publications (2)

Publication Number Publication Date
KR940027209A KR940027209A (en) 1994-12-10
KR0125258B1 true KR0125258B1 (en) 1997-12-15

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Application Number Title Priority Date Filing Date
KR1019930008823A KR0125258B1 (en) 1993-05-21 1993-05-21 Manufacturing method for battery electrode

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Country Link
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Also Published As

Publication number Publication date
KR940027209A (en) 1994-12-10

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