KR100362431B1 - Secondary battery - Google Patents

Secondary battery Download PDF

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Publication number
KR100362431B1
KR100362431B1 KR1019950014842A KR19950014842A KR100362431B1 KR 100362431 B1 KR100362431 B1 KR 100362431B1 KR 1019950014842 A KR1019950014842 A KR 1019950014842A KR 19950014842 A KR19950014842 A KR 19950014842A KR 100362431 B1 KR100362431 B1 KR 100362431B1
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South Korea
Prior art keywords
active material
material support
electrode
secondary battery
battery
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KR1019950014842A
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Korean (ko)
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KR970004119A (en
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한경호
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삼성에스디아이 주식회사
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Priority to KR1019950014842A priority Critical patent/KR100362431B1/en
Priority to DE19538834A priority patent/DE19538834B4/en
Priority to CN95119139A priority patent/CN1075903C/en
Priority to FR9512389A priority patent/FR2734950B1/en
Priority to JP8040216A priority patent/JPH08329936A/en
Publication of KR970004119A publication Critical patent/KR970004119A/en
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Publication of KR100362431B1 publication Critical patent/KR100362431B1/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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/36—Accumulators not provided for in groups H01M10/05-H01M10/34
    • H01M10/38—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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/24—Electrodes for alkaline accumulators
    • H01M4/26—Processes of manufacture
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/24—Alkaline accumulators
    • H01M10/30—Nickel accumulators
    • 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

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

Abstract

PURPOSE: A secondary battery which has improved lifetime by preventing active materials from being separated, high electro-conductivity, and increased electrode strength is provided. CONSTITUTION: The secondary battery comprises: a can(10) having a predetermined size wherein an electrode part(18) is made by inserting a separator(16) between anode and cathode plates(12,14) and winding and electrolyte solution is injected therein; and a cap assembly(20) located on the top of the can(10). The electrode member(18) comprises an active material support, active materials applied to the support, and a secondary active material support made of electro-conductive materials which is deposited into the active materials and positioned on the active material support.

Description

2차 전지Secondary battery

이 발명은 2차 전지에 관한 것으로서, 더욱 상세하게 말하자면, 재충전이 가능한 알카리 2차 전지 전극 제조시에 하나 이상의 집전체를 사용하여 제조됨으로써 도전성을 향상시킬 수 있는 2차 전지에 관한 것이다.The present invention relates to a secondary battery, and more particularly, to a secondary battery capable of improving conductivity by being manufactured using one or more current collectors in the manufacture of rechargeable alkaline secondary battery electrodes.

근래에 들어와서는 모든 전자 기기가 소형화되는 추세에 있다. 그에 따라 동력원으로 사용되는 전지의 소형화 및 대용량화가 필수적으로 요구되고 있으며, 그 주종을 이루는 것으로서 재충전이 가능한 2차 전지가 사용되고 있다.In recent years, all electronic devices have been miniaturized. Accordingly, miniaturization and large capacity of a battery used as a power source are indispensable, and a secondary battery that can be recharged is used as the main battery.

상기한 2차 전지의 하나로서 니켈-카드뮴 전지가 주로 사용되고 있으나, 이는 가격이 저렴하고 메모리 효과를 갖는 반면에, 상기 메모리 효과에 의한 충전 용량의 감소와 공해 물질인 카드뮴에 의한 환경 오염을 초래하는 문제점을 발생시킨다.Nickel-cadmium batteries are mainly used as one of the secondary batteries, but they are inexpensive and have a memory effect. However, nickel-cadmium batteries have a low cost and have a memory effect. Cause problems.

따라서, 근자에는 니켈-카드뮴 전지에 비하여 30∼50% 이상의 충전 용량을 가지며, 비공해 물질인 수소 저장 합금을 사용하는 니켈-수소 전지로서의 전환이 이루어지고 있는 추세이다.Therefore, in recent years, there is a trend that conversion to a nickel-hydrogen battery having a charge capacity of 30 to 50% or more as compared with a nickel-cadmium battery and using a non-polluting hydrogen storage alloy.

상기한 알카리 축전지인 밀폐형 니켈 수소 전지는, 양극으로 금속 산화물을 사용하고 음극으로는 수소 흡장 합금을 사용하여, 충전시 음극에서 발생되는 수소를 수소 흡장합금이 흡수하고 방진시 필요한 수소를 전해액 내로 방출함으로써 충전 및 방전하여 사용되는 전지로서, 그 단위 중량당 출력 밀도가 높다는 장점을 지니고 있다.In the sealed nickel-metal hydride battery, which is an alkaline storage battery, a metal oxide is used as a positive electrode and a hydrogen absorbing alloy is used as a negative electrode. The hydrogen-absorbing alloy absorbs hydrogen generated at the negative electrode during charging and releases hydrogen required for dustproofing into the electrolyte. As a battery used by charging and discharging, the battery has an advantage of high output density per unit weight.

일반적인 밀폐형 니켈 수조 전지의 구성은, 일정 크기의 캔 내부에, 양.음극판 사이로 세퍼레이터를 개재하여 이를 와인딩(Winding)한 전극부를 삽입하고 이에 전해액을 주입한 다음, 상기 캔 상단 부위에 캡 어셈블리를 장착시켜 이루어진다.In general, a sealed nickel-tank battery is configured to insert an electrode part wound through a separator between positive and negative electrode plates in a can of a predetermined size, inject an electrolyte therein, and then attach a cap assembly to an upper portion of the can. Is done.

상기와 같은 알카리 2차 전지에 있어서는, 전극 제조시에 전극 활물질(Ni(OH)2, 수소 저장 합금)을 지지하며 주며 집전체의 역할도 겸하는 활물질지지체가 필요하다.In the alkaline secondary battery as described above, an active material support that supports an electrode active material (Ni (OH) 2 , a hydrogen storage alloy) and also serves as a current collector during electrode production is required.

활물질 지지체의 종류에는 Ni-foam, Ni-파이버(fiber), 펀치드 메탈(punched metal) 등이 있다.Examples of the active material support include Ni-foam, Ni-fiber, punched metal, and the like.

첨부한 도면을 참조로 하여 종래의 알카리 2차 전이에 있어서 펀치드 메탈을 이용하여 전극을 제조하는 방법을 설명하면 다음과 같다.Referring to the accompanying drawings, a method of manufacturing an electrode using a punched metal in a conventional alkali secondary transition is as follows.

제1도의 (가)와 (나)는 종래의 2차 전지의 전극 단면도이다.(A) and (b) of FIG. 1 is sectional drawing of the electrode of the conventional secondary battery.

첨부한 제1도에 도시되어 있듯이 종래의 알카리 2차 전지의 활물질 지지체는 표면이 매끄러운 강철에 니켈을 도금한 다음 일정 간격을 홀(hole)을 형성하고, 전지의 반응 물질을 슬러리(slurry) 상태로 도포한 다음, 건조시켜 절단을 하여 극판으로 사용한다.As shown in the accompanying FIG. 1, the active material support of the conventional alkaline secondary battery is plated with nickel on a smooth surface of a steel, and then forms holes at a predetermined interval, and the reaction material of the battery is in a slurry state. After coating, it is dried, cut and used as a pole plate.

종래의 Ni-foam, Ni-파이버를 이용하여 지지체를 형성하는 경우에는, 활물질 지지체의 3차원적 구조로 인하여 도전성이 떨어지는 문제점이 발행하지 않으나, 첨부한 제1도에 도시되어 있는 바와 같이 펀치드 메탈을 이용하는 경우에는 중앙의 활물질 지지체(2)와 외곽부의 활물질(1)과는 도전성이 떨어지게 된다.In the case of forming a support using conventional Ni-foam and Ni-fibers, the problem of inferior conductivity is not caused due to the three-dimensional structure of the active material support, but is punched as shown in FIG. In the case of using a metal, conductivity is inferior to the active material support 2 in the center and the active material 1 in the outer portion.

또한, 외곽부에 도포한 활물질(1)은 전지의 충방전 중에 탈락되기 쉬우며, 탭(tab)을 사용하여 전지의 캔(can)고 용접시켜 주지 않고, 캔 내부와 접촉식으로 연결할 때 활물질의 산화와 전극 제조시에 들어가는 바인더(binder)와 증첨제 등의 물질로 인하여 표면의 전도성이 떨어져 전지 효율이 저하되며, 전극 제조 공정시에 활물질이 탈락될 가능성이 큰 단전이 있다.In addition, the active material 1 applied to the outer portion is easy to fall off during the charging and discharging of the battery, and does not weld to the can of the battery using a tab. Due to oxidation of the material and materials such as binders and thickeners that are used during electrode production, the surface conduction is degraded and battery efficiency is lowered, and there is a high possibility that the active material is dropped during the electrode manufacturing process.

그러므로, 이 발명의 목적은 상기한 종래의 단점을 해결하기 위한 것으로,알카리 2차 전지의 전극 제조시에, 전극의 한 면이나 또는 양면에 전도성이 우수한 재질로 이루어진 집전체를 하나 이상 더 포함시켜 구성하므로써, 활물질 탈락을 방지하여 전지의 수명을 향상시키고, 전극 강도를 높여 생산을 용이하도록 하기 위한 2차 전지를 제공하자 하는데 있다.Therefore, an object of the present invention is to solve the above-mentioned disadvantages, and when manufacturing an electrode of an alkaline secondary battery, by including at least one current collector made of a material having excellent conductivity on one side or both sides of the electrode The present invention provides a secondary battery that prevents dropping of an active material to improve battery life and to increase electrode strength to facilitate production.

상기 목적을 달성하기 위한 이 발명의 구성은,The configuration of the present invention for achieving the above object,

일정 크기의 캔 내부에 양극판과 음극판 사이로 격리판을 개재하여 이를 권취시킨 전극부를 삽입하고 이에 전해액을 주입한 다음, 상기 캔의 상단부에 캡 어셈블리를 장착시켜 형성되는 구조로 이루어진 2차 전지에 있어서,In a secondary battery having a structure formed by inserting an electrode portion wound between the positive electrode plate and a negative electrode plate between a positive electrode plate and a negative electrode plate and injecting an electrolyte therein, and then attaching a cap assembly to an upper end of the can,

상기 전극부가,The electrode unit,

활물질 지지체와;An active material support;

상기 활물질 지지체에 도포되는 활물질과;An active material applied to the active material support;

도전체로 이루어져 상기 활물질 내에 침적되어 상기 활물질 지지체 위에 배치되는 2차 활물질 지지체를 포함하여 이루어진다.It comprises a secondary active material support made of a conductor and deposited in the active material disposed on the active material support.

상기 구성에 의한 이 발명을 용이하게 실시할 수 있는 가장 바람직한 실시예를 첨부된 도면을 참조로 하여 설명하면 다음과 같다.Referring to the accompanying drawings, the most preferred embodiment which can easily practice this invention by the said structure is as follows.

제2도는 이 발명이 실시예에 따른 2차 전지의 전극 단면도이고,2 is a cross-sectional view of an electrode of a secondary battery according to an embodiment of the present invention.

제3도는 이 발명의 실시예에 따른 전극의 2차 집전체의 형상도이고,3 is a shape diagram of a secondary current collector of an electrode according to an embodiment of the present invention,

제4도는 이 방향의 실시예에 따른 전극 사용시의 전지의 방전 곡선 특성도이고,4 is a discharge curve characteristic diagram of a battery when an electrode is used according to the embodiment in this direction,

제5도는 이 발명의 실시예에 따른 2차 전지의 단면도이다.5 is a cross-sectional view of a secondary battery according to an embodiment of the present invention.

첨부한 제5도에 도시되어 있듯이, 이 발명의 실시예에 따른 2차 전지는 일정 크기의 캔(10) 내부에 양, 음극판(12,14) 사이로 세퍼레이터(16)를 개재하여 이를 권취시킨 전극부(18)를 삽입하고 이에 전해액을 주입한 다음, 상기 캔(10)의 상단부에 캡 어셈블리(20)를 장착시켜 형성되는 구조로 이루어진다.As shown in FIG. 5, the secondary battery according to the exemplary embodiment of the present invention has an electrode wound around a separator 16 between positive and negative electrode plates 12 and 14 in a can 10 of a predetermined size. After inserting the portion 18 and injecting the electrolyte solution, the cap assembly 20 is mounted on the upper end of the can 10.

상기 구성에 의한 이 발명의 실시예에 따른 2차 전지의 전극 제조 방법을 설명하면 다음과 같다.Referring to the electrode manufacturing method of a secondary battery according to an embodiment of the present invention by the above configuration is as follows.

첨부한 제2도에 도시되어 있듯이 알카리 2차 전지의 활물질 지지체(2)는 표면이 매끄러운 강철에 일정 간격으로 홀(3)을 형성하고, 전지의 활물질(1)을 슬러리 상태로 도포시킨다.As shown in the accompanying FIG. 2, the active material support 2 of the alkaline secondary battery forms holes 3 at regular intervals in a smooth steel, and applies the active material 1 of the battery in a slurry state.

상기에서 활물질 지지체(2)의 표면에 활물질(1)을 도포시켜 전극을 제조한 다음, 건조로로 투입시켜 열풍을 불어 넣어 건조시킨다.The active material 1 is coated on the surface of the active material support 2 to prepare an electrode, and then introduced into a drying furnace to blow hot air to dry.

이 발명의 실시예에서는 상기와 같이 활물질 지지체(2)에 활물질을 도포시킨 다음, 건조시키기 전이나 건조 중에 즉, 활물질이 완전히 건조되기 전에 도전성이 우수한 재질로 이루어진 2차 활물질 지지체(4)를 침적시켜 전극을 제조한다.In the embodiment of the present invention, the active material is applied to the active material support 2 as described above, and then the secondary active material support 4 made of a material having excellent conductivity is deposited before or during drying, that is, before the active material is completely dried. To produce an electrode.

상기에서 침적되는 2차 활물질 지지체(4)는 재질이나 형상에 상관없이 도전성이 우수한 재질로 이루어진다.The secondary active material support 4 deposited in the above is made of a material having excellent conductivity regardless of material or shape.

이 발명의 실시예에 따라 상기 전극 제조 공정 중에 침적되는 2차 활물질 지지체(4)는 첨부한 제3도에 도시되어 있듯이 망사 구조로 이루어진다.According to an embodiment of the present invention, the secondary active material support 4 deposited during the electrode manufacturing process has a mesh structure as shown in FIG.

상기와 같이 망사 구조로 이루어진 2차 활물질 지지체(4)를 첨부한 제2도에 도시되어 있듯이 활물질 지지체(2)에 활물질(1) 도포된 위에 침적시킨 다음, 활물질(1)을 완전히 건조시킨다.As shown in FIG. 2 attached to the secondary active material support body 4 having the mesh structure as described above, the active material support 1 is deposited on the active material support 2, and then the active material 1 is completely dried.

상기와 같은 구조로 전극을 제조한 다음 전류를 인가시키면, 2차 활물질 지지체(4)가 도전성이 떨어지는 활물질(1)의 도전체 역할을 하며 전류가 흐르는 통로를 형성하게 된다.When the electrode is manufactured with the structure as described above, and then a current is applied, the secondary active material supporter 4 serves as a conductor of the active material 1 having low conductivity and forms a passage through which the current flows.

따라서, 첨부한 제3도에 도시되어 있는 2차 활물질 지지체(4)의 망사 구조를 이루는 각각의 사면의 길이(a,b)가 짧으면 짧을수록 도전성이 높아지게 된다.Therefore, the shorter the length (a, b) of each slope forming the mesh structure of the secondary active material support body 4 shown in FIG. 3, the shorter the conductivity becomes.

또한, 2차 활물질 지지체(4)의 각각의 사면의 길이가 짧아지면 짧아질수록 활물질(1)이 탈락되는 비율이 감소하게 된다.In addition, the shorter the length of each slope of the secondary active material support 4, the shorter the rate at which the active material 1 is dropped.

그러나, 상기에 비례하여 전극의 단위 부피당 용량을 감소시키므로, 각 전극에 맞는 재질과 형상을 가지는 2차 활물질 지지체를 침적시키는 것이 효과가 증가하게된다.However, since the capacity per unit volume of the electrode is reduced in proportion to the above, it is effective to deposit the secondary active material support having a material and shape suitable for each electrode.

상기한 실시예와 달리, 활물질 지지체(2) 이외의 도전성이 높은 2차 활물질 지지체(4)를 전극의 한쪽면 뿐만 아니라 양쪽면 모두에 첨가할 수 있으며, 활물질 지지체(2)의 전부 또는 일부분에 2차 활물질 지지체(4)를 첨가할 수도 있다.Unlike the above embodiment, the secondary active material support 4 having high conductivity other than the active material support 2 can be added to both sides as well as one side of the electrode, and to all or part of the active material support 2. The secondary active material support 4 can also be added.

상기와 같이 이 발명의 실시예에 따라 도전성이 강한 2차 활물질 지지체를 첨가하여 전극을 제조하므로써. 첨부한 제4도에 도시되어 있듯이 방전 특성이 향상되어 전지의 충방전 사이클이 약 8% 정도 향상된다.By producing an electrode by adding a secondary active material support having a high conductivity according to the embodiment of the present invention as described above. As shown in FIG. 4, the discharge characteristic is improved, and the charge / discharge cycle of the battery is improved by about 8%.

이상에서와 같이 이 발명의 실시예에 따라, 알카리 2차 전지의 전극 제조시에, 전극의 한 면이나 또는 양면에 전도성이 우수한 재질로 이루어진 집전체를 하나 이상 더 포함시켜 구성하므로써, 전해액에 유화되고 충방전시의 부피 변화에 따른 손상으로 인한 활물질 탈락을 방지하여 전지의 수명을 향상시킬 수 있다.As described above, according to the embodiment of the present invention, at the time of manufacturing an electrode of an alkaline secondary battery, one or more current collectors comprising one or more current collectors made of a material having excellent conductivity are emulsified in the electrolyte solution. In addition, the life of the battery may be improved by preventing the active material from falling off due to the damage caused by the volume change during charge and discharge.

또한, 전극 제조시에 탭을 사용하지 않고 캔 접촉식으로 연결을 하면서도 높은 도전률을 가진 전극 제조가 가능하여, 고율 충방전에 유리하다.In addition, it is possible to manufacture an electrode having a high conductivity while connecting in a can contact without using a tab at the time of electrode production, which is advantageous for high rate charging and discharging.

또한, 2차 활물질 지지체를 첨가하여 전극 강도를 높여 수율 확보 및 생산성이 용이한 효과를 가지는 2차 전지를 제공할 수 있다.In addition, it is possible to provide a secondary battery having an effect of securing a yield and increasing productivity by adding a secondary active material support to increase electrode strength.

제1도의 (가)와 (나)는 종래의 2차 전지의 전극 단면도이고,(A) and (b) of FIG. 1 are cross-sectional views of electrodes of a conventional secondary battery,

제2도는 이 발명의 실시예에 따른 2차 전지의 전극 단면도이고,2 is a cross-sectional view of an electrode of a rechargeable battery according to an exemplary embodiment of the present invention.

제3도는 이 발명의 실시예에 따른 전극의 2차 활물질 지지체의 형상도이고,3 is a shape diagram of the secondary active material support of the electrode according to the embodiment of the present invention,

제4도는 이 발명의 실시예에 따른 전극 사용시의 전지의 방전 곡선 특성도이고,4 is a discharge curve characteristic diagram of a battery when using an electrode according to an embodiment of the present invention,

제5도는 이 발명의 실시예에 따른 2차 전지의 단면도이다.5 is a cross-sectional view of a secondary battery according to an embodiment of the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 : 활물질 2 : 활물질 지지체 3: 홀DESCRIPTION OF SYMBOLS 1: Active material 2: Active material support body 3: Hole

4: 2차 활물질 지지체4: secondary active material support

Claims (2)

일정 크기의 캔 내부에 양극판과 음극판 사이로 격리판을 개재하여 이를 권취시킨 전극부를 삽입하고 이에 전해액을 주입한 다음, 상기 캔의 상단부에 캡 어셈블리를 장착시켜 형성되는 구조로 이루어진 2차 전지에 있어서,In a secondary battery having a structure formed by inserting an electrode portion wound between the positive electrode plate and a negative electrode plate between a positive electrode plate and a negative electrode plate and injecting an electrolyte therein, and then attaching a cap assembly to an upper end of the can, 상기 전극부가,The electrode unit, 활물질 지지체와;An active material support; 상기 활물질 지지체에 도포되는 활물질과;An active material applied to the active material support; 도전체로 이루어져 상기 활물질 내에 침적되어 상기 활물질 지지체 위에 배치되는 2차 활물질 지지체를 포함하여 이루어짐을 특징으로 하는 2차 전지.And a secondary active material support made of a conductor and deposited on the active material and disposed on the active material support. 제 7 항에 있어서,The method of claim 7, wherein 상기 2차 활물질 지지체가 구물 주조를 가지로 형성됨을 특징으로 하는 2차 전지.The secondary battery, characterized in that the secondary active material support is formed with a sphere casting.
KR1019950014842A 1995-06-05 1995-06-05 Secondary battery KR100362431B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
KR1019950014842A KR100362431B1 (en) 1995-06-05 1995-06-05 Secondary battery
DE19538834A DE19538834B4 (en) 1995-06-05 1995-10-18 Nickel-metal hydride rechargeable battery and method of manufacturing the negative electrode of a nickel-metal hydride rechargeable battery
CN95119139A CN1075903C (en) 1995-06-05 1995-10-20 Secondary battery and method for fabricating its negative electrode
FR9512389A FR2734950B1 (en) 1995-06-05 1995-10-20 METHOD FOR MANUFACTURING THE NEGATIVE ELECTRODE OF A SECONDARY BATTERY AND BATTERY THEREFROM.
JP8040216A JPH08329936A (en) 1995-06-05 1996-02-28 Secondary battery and electrode preparation that is used forthis

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KR1019950014842A KR100362431B1 (en) 1995-06-05 1995-06-05 Secondary battery

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KR100362431B1 true KR100362431B1 (en) 2003-03-03

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CN (1) CN1075903C (en)
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DE19538834A1 (en) 1996-12-12
FR2734950A1 (en) 1996-12-06
CN1075903C (en) 2001-12-05
DE19538834B4 (en) 2004-11-18
JPH08329936A (en) 1996-12-13
FR2734950B1 (en) 1998-11-13
KR970004119A (en) 1997-01-29

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