FR2394179A1 - PROCESS FOR MANUFACTURING MICRO-POROUS SEPARATORS FOR ACCUMULATORS - Google Patents

PROCESS FOR MANUFACTURING MICRO-POROUS SEPARATORS FOR ACCUMULATORS

Info

Publication number
FR2394179A1
FR2394179A1 FR787817381A FR7817381A FR2394179A1 FR 2394179 A1 FR2394179 A1 FR 2394179A1 FR 787817381 A FR787817381 A FR 787817381A FR 7817381 A FR7817381 A FR 7817381A FR 2394179 A1 FR2394179 A1 FR 2394179A1
Authority
FR
France
Prior art keywords
accumulators
manufacturing micro
porous separators
strip
thickness
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.)
Pending
Application number
FR787817381A
Other languages
French (fr)
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of FR2394179A1 publication Critical patent/FR2394179A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • 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
    • H01M50/491—Porosity
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Cell Separators (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Dans ce procédé par frittage, on part d'un mélange de PVC et de particules lessivables de formation de pores; une couche de moins de 0,3048 mm étalée sur une courroie est frittée et refroidie à 120-150 degrés C, puis son épaisseur est réduite au moins de moitié par compression. La bande retrouve ensuite une partie importante de son épaisseur et est fixée définitivement par refroidissement. On choisit la dimension et la quantité des particules lessivables de façon qu'après leur extraction, la perméabilité Gurley à l'air de la bande soit au moins 24 secondes.In this sintering process, the starting point is a mixture of PVC and leachable pore-forming particles; a layer of less than 0.3048 mm spread on a belt is sintered and cooled to 120-150 degrees C, then its thickness is reduced to at least half by compression. The strip then regains a significant part of its thickness and is fixed definitively by cooling. The size and quantity of the leachable particles are chosen so that after their extraction, the Gurley air permeability of the strip is at least 24 seconds.

FR787817381A 1977-06-09 1978-06-09 PROCESS FOR MANUFACTURING MICRO-POROUS SEPARATORS FOR ACCUMULATORS Pending FR2394179A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80491677A 1977-06-09 1977-06-09

Publications (1)

Publication Number Publication Date
FR2394179A1 true FR2394179A1 (en) 1979-01-05

Family

ID=25190205

Family Applications (1)

Application Number Title Priority Date Filing Date
FR787817381A Pending FR2394179A1 (en) 1977-06-09 1978-06-09 PROCESS FOR MANUFACTURING MICRO-POROUS SEPARATORS FOR ACCUMULATORS

Country Status (2)

Country Link
FR (1) FR2394179A1 (en)
GB (1) GB1592238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019520A1 (en) * 1979-05-08 1980-11-26 Société dite : FABBRICA ITALIANA MAGNETI MARELLI S.p.A. Envelope separators for electric accumulators and means for realizing their manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0019520A1 (en) * 1979-05-08 1980-11-26 Société dite : FABBRICA ITALIANA MAGNETI MARELLI S.p.A. Envelope separators for electric accumulators and means for realizing their manufacture

Also Published As

Publication number Publication date
GB1592238A (en) 1981-07-01

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