EP1074055A1 - Separateur de pile - Google Patents

Separateur de pile

Info

Publication number
EP1074055A1
EP1074055A1 EP98963895A EP98963895A EP1074055A1 EP 1074055 A1 EP1074055 A1 EP 1074055A1 EP 98963895 A EP98963895 A EP 98963895A EP 98963895 A EP98963895 A EP 98963895A EP 1074055 A1 EP1074055 A1 EP 1074055A1
Authority
EP
European Patent Office
Prior art keywords
electrochemical cell
battery
cell according
materials
cathode
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP98963895A
Other languages
German (de)
English (en)
Other versions
EP1074055A4 (fr
Inventor
Douglas J. Woodnorth
Peter B. Harris
George I. Tay
Barbara Brys
James Cervera
Terry L. Hamilton
Martin W. Howard
Gregory A. Fariss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gillette Co LLC
Original Assignee
Duracell Inc USA
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 Duracell Inc USA filed Critical Duracell Inc USA
Publication of EP1074055A1 publication Critical patent/EP1074055A1/fr
Publication of EP1074055A4 publication Critical patent/EP1074055A4/fr
Withdrawn legal-status Critical Current

Links

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
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • 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
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • 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
    • H01M50/411—Organic material
    • H01M50/429—Natural polymers
    • 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
    • H01M50/429—Natural polymers
    • H01M50/4295—Natural cotton, cellulose or wood
    • 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
    • H01M50/44—Fibrous material
    • 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
    • H01M50/446—Composite material consisting of a mixture of organic and inorganic materials
    • 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
    • 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
    • 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

Definitions

  • the invention features an electrochemical cell that has a long axis and at least short axis which is perpendicular to the short axis.
  • the electrochemical cell includes an anode, a cathode and a separator disposed between the anode .and the cathode.
  • the separator includes first and second nonwoven, non-membrane materials.
  • the second material is disposed along a surface of the first material. At least about 60% of the fiberlength direction of the first material is within about 10 degrees of parallel to the long axis of the electrochemical cell.
  • the fiber- length direction of a nonwoven material refers to the axis along which the fibers of the nonwoven material are generally oriented. It is to be noted, however, that the individual fibers of these nonwoven materials can be oriented in any direction.
  • layers 16a and 16b are each preferably at least about 4 mils thick, more preferably from about 4 mils to about 6 mils thick, and most preferably about 5.4 mils thick.
  • layers 16a and 16b are each preferably at least about 8 mils thick, more preferably from about 8 mils to about 12 mils thick, and most preferably about 10 mils thick.
  • the electrolytic solution dispersed throughout battery 10 can be any of the conventional electrolytic solutions used in batteries.
  • the electrolytic solution is an aqueous hydroxide solution.
  • aqueous hydroxide solutions include, for example, potassium hydroxide solutions and sodium hydroxide solutions.
  • the electrolytic solution is an aqueous potassium hydroxide solution including from about 33 weight percent to about 38 weight percent potassium hydroxide.
  • the porosity of the cathode was about 26%>, .and the porosity of the anode was about 2.173 grams of zinc per cubic centimeter of anode.
  • the separator was a two-layer structure with each layer formed of a nonwoven material including about 57 weight percent PVA fibers (about 0.5 denier at 6 millimeters), about 30 weight percent rayon fibers (about 1.5 denier at 6 millimeters) and about 13 weight percent PVA binder. Each layer was about 5.4 mils thick when dry and about 10 mils thick when wet. Each layer had a basis weight of about 54 grams per square meter.
  • the separator did not include an adhesive, and the layers were substantially devoid of any filler.
  • Example II A AAA battery was prepared.
  • the cathode 12 included about 4.155 grams of manganese dioxide (Kerr McGee, Co.), about 0.353 grams of non- synthetic, nonexpanded graphite having an average particle size of about 7 microns (Brazilian Nacional de Grafite) and about 0.3 weight percent of coathylene HA- 1681.
  • the anode 14 included about 1.668 grams of zinc particles, about 50 ppm surfactant (RM 510, Rhone Poulenc), and about 0.5 weight percent total gelling agent (Carbopol 940 and A221). The porosity of the cathode was about 26%), and the porosity of the anode was about 2.266 grams of zinc per cubic centimeter of anode 14.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Primary Cells (AREA)
  • Cell Separators (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

L'invention concerne un séparateur (16) de pile qui ne comprend pas de couche de matière membraneuse. Le séparateur (16) comprend deux couches (16a, 16b) de matières disposées de façon adjacente l'une par rapport à l'autre. Les couches peuvent être constituées de la même matière ou de matières différentes. Les matières peuvent être tissées ou non tissées. Dans certains modes de réalisation, les couches sont constituées de la même matière non tissée et non membraneuse, qui est une matrice de fibres de polyalcool vinylique, de fibres de cellulose et d'un liant de polyalcool vinylique.
EP98963895A 1997-12-31 1998-12-14 Separateur de pile Withdrawn EP1074055A4 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US182097A 1997-12-31 1997-12-31
US1820 1997-12-31
US5504198A 1998-04-03 1998-04-03
US55041 1998-04-03
PCT/US1998/026488 WO1999034459A1 (fr) 1997-12-31 1998-12-14 Separateur de pile

Publications (2)

Publication Number Publication Date
EP1074055A1 true EP1074055A1 (fr) 2001-02-07
EP1074055A4 EP1074055A4 (fr) 2005-07-13

Family

ID=26669514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98963895A Withdrawn EP1074055A4 (fr) 1997-12-31 1998-12-14 Separateur de pile

Country Status (8)

Country Link
EP (1) EP1074055A4 (fr)
JP (1) JP2002500416A (fr)
CN (1) CN1285958A (fr)
AR (1) AR014203A1 (fr)
AU (1) AU1913099A (fr)
CA (1) CA2313645A1 (fr)
TW (1) TW393795B (fr)
WO (1) WO1999034459A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6929884B2 (en) * 2001-04-19 2005-08-16 Zinc Matrix Power, Inc. Method for manufacture of films containing insoluble solids embedded in cellulose-based films
DE10154896C2 (de) * 2001-11-12 2003-10-16 Freudenberg Carl Kg Alkalische Zelle oder Batterie
US8721743B2 (en) 2004-10-21 2014-05-13 The Gillette Company Battery cathodes
JP5032748B2 (ja) * 2005-02-25 2012-09-26 株式会社クラレ アルカリ電池用セパレータ及びアルカリ一次電池
EP1862585B1 (fr) * 2005-03-25 2011-12-14 Kuraray Co., Ltd. Support textile pour dentelle chimique son procede de fabrication

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578534A (en) * 1945-01-06 1951-12-11 Tilo Roofing Company Inc Separator for electric storage batteries
NL216936A (fr) * 1956-05-05
NL113328C (fr) * 1957-02-20
FR1299615A (fr) * 1961-06-12 1962-07-27 Accumulateurs Fixes Nouveaux séparateurs capillaires pour accumulateurs électriques, cellules électrolytiques et tous autres usages appropriés
US3894889A (en) * 1970-08-03 1975-07-15 Gates Rubber Co Method of making separators for alkaline batteries
JPS60170159A (ja) * 1984-02-14 1985-09-03 Matsushita Electric Ind Co Ltd 密閉形アルカリ蓄電池
JPS62154559A (ja) * 1985-12-27 1987-07-09 Kuraray Co Ltd アルカリ乾電池用セパレ−タ−紙
AU662822B2 (en) * 1992-06-01 1995-09-14 Kuraray Co., Ltd. Separator for alkaline batteries
US5667911A (en) * 1994-11-17 1997-09-16 Hoechst Celanese Corporation Methods of making cross-ply microporous membrane battery separator, and the battery separators made thereby
FR2751469A1 (fr) * 1996-07-18 1998-01-23 Accumulateurs Fixes Separateur pour accumulateur ni-mh

Also Published As

Publication number Publication date
AU1913099A (en) 1999-07-19
EP1074055A4 (fr) 2005-07-13
AR014203A1 (es) 2001-02-07
CN1285958A (zh) 2001-02-28
TW393795B (en) 2000-06-11
WO1999034459A1 (fr) 1999-07-08
CA2313645A1 (fr) 1999-07-08
JP2002500416A (ja) 2002-01-08

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20000725

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Effective date: 20050531

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THE GILLETTE COMPANY

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 20080311