CN1075903C - Secondary battery and method for fabricating its negative electrode - Google Patents

Secondary battery and method for fabricating its negative electrode Download PDF

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Publication number
CN1075903C
CN1075903C CN95119139A CN95119139A CN1075903C CN 1075903 C CN1075903 C CN 1075903C CN 95119139 A CN95119139 A CN 95119139A CN 95119139 A CN95119139 A CN 95119139A CN 1075903 C CN1075903 C CN 1075903C
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CN
China
Prior art keywords
active material
negative electrode
electrolyte
electrolyte active
secondary battery
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Expired - Fee Related
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CN95119139A
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Chinese (zh)
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CN1142693A (en
Inventor
韩庆镐
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Samsung SDI Co Ltd
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Samsung Electron Devices Co Ltd
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Publication of CN1142693A publication Critical patent/CN1142693A/en
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Publication of CN1075903C publication Critical patent/CN1075903C/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
    • 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
    • H01M10/36—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
    • 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

A nickel-metallic hydride battery has a cylindrically rolled layered material made of a positive electrode, a negative electrode and a separator between them. The negative electrode has an electrolytically active material on both sides of a perforated plate to hold it, serving as a collector. There is an electrolyte and a protective container around the whole lot. The negative electrode plate also has a carrier for an electrically conducting mesh which is embedded in the active material at least on one side of the perforated plate near its surface to support its function. The active material is a compound which retains hydrogen, such as nickel hydroxide.

Description

The manufacture method of secondary cell and negative electrode thereof
The present invention relates to a kind of nickel metal hydride secondary battery of tubular coiling lamellar structure, this tubular coiling lamellar structure is made up of between the division board between the two positive plate, negative plate and one, relates more specifically to negative pole.
Most of secondary cell is a nickel-cadmium cell.Yet this battery reserve of electricity is little and cadmium can cause serious environmental to be polluted.Therefore, can not cause environmental pollution and charge storage ability the trend that replaces nickel-cadmium cell to be arranged than the alkaline nickel metal hydride secondary battery of nickel-cadmium cell high 30～50%.This nickel metal hydride battery comprises a metal oxide cathode and a hydrogen storage alloy negative, has high-output power.Hydrogen bearing alloy absorbs the hydrogen that produces in the charging process, then it is discharged in the electrolyte.
Usually, the tubular coiling lamellar structure that this nickel metal hydride battery comprises positive plate, negative plate and forms between the division board between the two can seal the containment vessel and the electrolyte of this lamellar structure.In this alkaline secondary cell, positive pole needs a kind of bracing or strutting arrangement to support as nickel hydroxide (Ni (OH) 2) the electrolyte active material, and as charge collector.As this bracing or strutting arrangement, can use nickel foam, fiber nickel, porous metals etc.
With reference to accompanying drawing, Figure 1A and Figure 1B have shown the negative pole structure of traditional alkali metal secondary cell, and by the bracing or strutting arrangement that a perforate shape steel plate that is coated with nickel constitutes, two surfaces of this steel plate all are coated with the thin pulp of electrolyte active material.During as bracing or strutting arrangement, do not have conducting problem as the nickel foam of 3-D solid structure or fiber nickel, but during with perforate shape metallic plate, the conductivity in the outside electrolyte active material 1 is more than low in bracing or strutting arrangement 2 centers.Further, in charging and discharge process, electrolyte active material 1 easily spins off from bracing or strutting arrangement.When electrode structure is installed in the containment vessel without tab welding,, in manufacturing process, be easy to be separated with bracing or strutting arrangement because its oxidation and be included in adhesive and additive in the electrode makes active material lose quite a large amount of conductive capabilities.
An object of the present invention is to provide a kind of method that prevents that electrolyte active material and bracing or strutting arrangement are separated.
Another object of the present invention provides a kind of method that increases the alkaline secondary cell negative electrode conductive capability.
A further object of the present invention provides a kind of method of improving the secondary alkaline cccumulator electrode structural strength.
According to embodiment of the present invention, nickel metal hydride secondary battery comprises:
By positive electrode plate, negative electrode and the tubular coiling lamellar structure that constitutes between the division board between the two;
Can seal the containment vessel of this tubular coiling lamellar structure;
Electrolyte, wherein negative electrode plate comprises the electrolyte active material, the perforate shape supporting bracket that is used for the supporting electrolyte active material, this electrolyte active material is coated atop two surfaces of described supporting bracket, and conduct electricity netted auxiliary support apparatus, it is embedded in the active material layer on a surface of supporting bracket and is positioned at electrolyte active material lower face just, with the support effect of auxiliary support plate.
According to another embodiment of the invention, it provides a kind of method of making the nickel metal hydride secondary battery negative electrode, this secondary cell comprises that this method comprises following steps by positive electrode plate, negative electrode plate and the tubular coiling lamellar structure that constitutes between the division board between the two:
Make a nickel plating perforate shape steel plate,
The thin pulp of preparation electrolyte active material,
Thin pulp is coated on the surface on perforate shape steel plate two sides,
A netted auxiliary support apparatus of conduction is embedded in the active material layer on a surface of supporting bracket and make it to be positioned at just electrolyte active material lower face, and
Dry supporting bracket two lip-deep active material layers.
Specifically describe the present invention with reference to accompanying drawing by embodiment is more detailed.
Figure 1A and Figure 1B have illustrated the structure of conventional alkaline secondary cell negative electrode.
Fig. 2 is the cross sectional view by the negative electrode of the alkaline secondary cell of the embodiment of the invention.
Fig. 3 has shown the netted auxiliary supportive device of the conduction of auxiliary support plate supporting role.
Fig. 4 is the characteristic curve diagram that shows secondary cell discharge of the present invention.
Fig. 5 has shown the cross sectional view of secondary cell of the present invention.
With reference to Fig. 5, nickel metal hydride secondary battery is made by tubular coiling lamellar structure 18, and it is formed by positive electrode plate 12, negative electrode plate 16 with between the division board between the two 14.Electrode metal lamellar structure 18 is sealed in the containment vessel 10 that fills liquid electrolyte.Assembly of lid 20 covers the top at containment vessel 10.With reference to Fig. 2,, at first make the perforate shape supporting plate 2 of nickel plating in order to make the negative electrode of secondary cell of the present invention.Label 3 indication windows.Two surfaces of perforate shape steel plate 2 all apply the thin pulp of electrolyte active material.In addition, as shown in Figure 2, the netted auxiliary supportive device 4 that conducts electricity is embedded in the surface reactive material layer of supporting bracket 2 and is positioned at just under its surface.Then, the active material layer with supporting bracket two surface applied carries out dried.Should preferably make by auxiliary supportive device, and can be arbitrary shape by the high-quality electric conducting material.This auxiliary supportive device is used for compensating the low electric conductivity of electrolyte active material.As shown in Figure 3, improved conductive capability, and along with the reducing of conductive mesh mesh size,
The disengaging rate of active material has also reduced, but the charge storage ability of unit volume has reduced on the electrode assemblie.Auxiliary supportive device 4 can be embedded in two surfaces of negative electrode.As shown in Figure 4, the discharge characteristic that this creationary alkaline secondary cell has clear improvement is so its charging and discharge cycles process have improved 8% than common batteries.And electrode assemblie of the present invention can just be installed in the containment vessel without tab, therefore improved efficient.The present invention makes in the manufacturing of secondary cell and has obtained high production rate.

Claims (6)

1, a kind of nickel metal hydride secondary battery, it comprises:
One by positive electrode plate, negative electrode plate and the tubular coiling lamellar structure that constitutes between the division board between the two;
The containment vessel of a described tubular coiling lamellar structure of sealing;
Electrolyte, wherein said negative electrode plate comprises the electrolyte active material, is used for the perforate shape supporting bracket of supporting electrolyte active material, this electrolyte active material is coated in two surfaces of described supporting bracket, it is characterized in that, also comprises:
The netted auxiliary support apparatus of conduction, it is embedded in the active material layer on a surface of supporting bracket and is positioned at the lower face of described electrolyte active material just, with the support effect of auxiliary support plate.
2, according to the nickel metal hydride secondary battery of claim 1, wherein said electrolyte active material is a hydrogen bearing alloy.
3, according to the nickel metal hydride secondary battery of claim 1, wherein said positive electrode has electrolyte active material Ni (OH) 2
4, a kind of method of making the nickel metal hydride secondary battery negative electrode, this secondary cell is by having by positive electrode plate, negative electrode plate and the tubular coiling lamellar structure that constitutes between the division board between the two, and this method comprises following steps:
Make a nickel plating perforate shape steel plate;
The thin pulp of preparation electrolyte active material;
Said thin pulp is coated on the surface on perforate shape steel plate two sides;
A netted auxiliary support apparatus of conduction is embedded in the active material layer on a surface of supporting bracket and make it to be positioned at just the lower face of described electrolyte active material; And the active material layer on dry supporting bracket two surfaces.
5, according to the method for claim 4, wherein said electrolyte active material is a hydrogen bearing alloy.
6, according to the method for claim 4, wherein said positive electrode has electrolyte active material Ni (OH) 2
CN95119139A 1995-06-05 1995-10-20 Secondary battery and method for fabricating its negative electrode Expired - Fee Related CN1075903C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR14842/1995 1995-06-05
KR14842/95 1995-06-05
KR1019950014842A KR100362431B1 (en) 1995-06-05 1995-06-05 Secondary battery

Publications (2)

Publication Number Publication Date
CN1142693A CN1142693A (en) 1997-02-12
CN1075903C true CN1075903C (en) 2001-12-05

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CN95119139A Expired - Fee Related CN1075903C (en) 1995-06-05 1995-10-20 Secondary battery and method for fabricating its negative electrode

Country Status (5)

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JP (1) JPH08329936A (en)
KR (1) KR100362431B1 (en)
CN (1) CN1075903C (en)
DE (1) DE19538834B4 (en)
FR (1) FR2734950B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2763427B1 (en) * 1997-05-15 1999-07-23 Alsthom Cge Alcatel METAL-HYDRIDE NEGATIVE ELECTRODE IN COATED PERFORATED STRIP
EP1492184A1 (en) * 2003-06-27 2004-12-29 Umicore AG & Co. KG Process for the manufacture of a polymer electrolyte membrane coated with a catalyst
KR100914732B1 (en) * 2008-12-17 2009-08-31 성우오토모티브 주식회사 Electrode plate with multi-layer for battery and method for manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006333A1 (en) * 1993-08-27 1995-03-02 Eveready Battery Company, Inc. Electrode structure for nickel metal hydride cells

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Publication number Priority date Publication date Assignee Title
KR920007380B1 (en) * 1987-02-17 1992-08-31 산요 덴끼 가부시끼가이샤 Making method of alkali battery
DE69014185T2 (en) * 1989-09-18 1995-03-30 Toshiba Battery Secondary nickel metal hydride cell.
JPH044558A (en) * 1990-04-20 1992-01-09 Hitachi Chem Co Ltd Manufacture of positive electrode plate for alkaline storage battery
DE4017884A1 (en) * 1990-06-02 1991-12-05 Varta Batterie GAS-TIGHT ALKALINE ACCUMULATOR
JPH071070U (en) * 1993-02-16 1995-01-10 株式会社フジプレシャス Laminated mesh electrode
KR950004620A (en) * 1993-07-27 1995-02-18 조희재 Manufacturing method of nickel electrode for alkaline storage battery
JPH07130370A (en) * 1993-10-29 1995-05-19 Matsushita Electric Ind Co Ltd Coating type electrode and manufacture thereof
KR950021837A (en) * 1993-12-06 1995-07-26 조희재 Method for manufacturing electrode for alkaline storage battery
JPH1039281A (en) * 1996-07-19 1998-02-13 Ricoh Co Ltd Liquid crystal display element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995006333A1 (en) * 1993-08-27 1995-03-02 Eveready Battery Company, Inc. Electrode structure for nickel metal hydride cells

Also Published As

Publication number Publication date
KR100362431B1 (en) 2003-03-03
DE19538834A1 (en) 1996-12-12
FR2734950A1 (en) 1996-12-06
DE19538834B4 (en) 2004-11-18
JPH08329936A (en) 1996-12-13
CN1142693A (en) 1997-02-12
KR970004119A (en) 1997-01-29
FR2734950B1 (en) 1998-11-13

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