FR2449337A1 - Procede pour la preparation de cloisons poreuses pour batteries d'accumulateurs a l'acide sulfurique - Google Patents

Procede pour la preparation de cloisons poreuses pour batteries d'accumulateurs a l'acide sulfurique

Info

Publication number
FR2449337A1
FR2449337A1 FR7903720A FR7903720A FR2449337A1 FR 2449337 A1 FR2449337 A1 FR 2449337A1 FR 7903720 A FR7903720 A FR 7903720A FR 7903720 A FR7903720 A FR 7903720A FR 2449337 A1 FR2449337 A1 FR 2449337A1
Authority
FR
France
Prior art keywords
sheet
heating
wetting agent
sulphuric acid
fibres
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.)
Granted
Application number
FR7903720A
Other languages
English (en)
Other versions
FR2449337B1 (fr
Inventor
Guglielmo Corrieri
Paolo Parrini
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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Priority to FR7903720A priority Critical patent/FR2449337A1/fr
Publication of FR2449337A1 publication Critical patent/FR2449337A1/fr
Application granted granted Critical
Publication of FR2449337B1 publication Critical patent/FR2449337B1/fr
Granted 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
    • 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
    • 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)
  • Cell Separators (AREA)
  • Secondary Cells (AREA)

Abstract

LA PRESENTE INVENTION A POUR OBJET UN PROCEDE POUR LA PREPARATION DE CLOISONS POREUSES POUR BATTERIES D'ACCUMULATEURS A L'ACIDE SULFURIQUE. ELLE EST CARACTERISEE EN CE QUE CE PROCEDE CONSISTE EN LES OPERATIONS SUIVANTES: A.PREPARATION D'UNE FEUILLE DE MATIERE FIBREUSE COMPRENANT: A.UN MELANGE DE FIBRES CONSTITUE PAR 3 A 40 EN POIDS DE FIBRES CELLULOSIQUES ET PAR 97 A 60 EN POIDS DE FIBRILLES D'AU MOINS UN POLYMERE THERMOPLASTIQUE AYANT UNE AIRE SUPERFICIELLE COMPRISE ENTRE 3 ET 15MG; B.0,1 A 1 EN POIDS, EXPRIME PAR RAPPORT AU POIDS DU MELANGE DE FIBRES, D'UN AGENT MOUILLANT NON IONIQUE DISPERSE DE FACON HOMOGENE DANS LE MELANGE FIBREUX. B.RECHAUFFEMENT DE LA FEUILLE A UNE TEMPERATURE EGALE OU SUPERIEURE A CELLE DE LA TEMPERATURE DE FUSION DUDIT POLYMERE THERMOPLASTIQUE, EFFECTUE EN L'ABSENCE DE PRESSION SUR LA FEUILLE PENDANT UNE DUREE SUFFISANTE POUR PROVOQUER LA FUSION DES FIBRILLES PRESENTES DANS LA FEUILLE.
FR7903720A 1979-02-14 1979-02-14 Procede pour la preparation de cloisons poreuses pour batteries d'accumulateurs a l'acide sulfurique Granted FR2449337A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7903720A FR2449337A1 (fr) 1979-02-14 1979-02-14 Procede pour la preparation de cloisons poreuses pour batteries d'accumulateurs a l'acide sulfurique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7903720A FR2449337A1 (fr) 1979-02-14 1979-02-14 Procede pour la preparation de cloisons poreuses pour batteries d'accumulateurs a l'acide sulfurique

Publications (2)

Publication Number Publication Date
FR2449337A1 true FR2449337A1 (fr) 1980-09-12
FR2449337B1 FR2449337B1 (fr) 1981-12-04

Family

ID=9221950

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7903720A Granted FR2449337A1 (fr) 1979-02-14 1979-02-14 Procede pour la preparation de cloisons poreuses pour batteries d'accumulateurs a l'acide sulfurique

Country Status (1)

Country Link
FR (1) FR2449337A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579589A (en) * 1947-02-25 1951-12-25 American Felt Co Storage battery separator
FR1044328A (fr) * 1951-10-31 1953-11-17 Système de séparateurs d'accumulateurs ou de diaphragmés d'électrolyse et leur procédé de fabrication
FR79847E (fr) * 1960-08-09 1963-02-01 Nat Lead Co Objets fabriqués en une composition à base de cellulose et de polyéthylène
US3573994A (en) * 1968-01-31 1971-04-06 Alkaline Batteries Ltd Liquid permeable liquid absorbent porous sheet materials
US4000967A (en) * 1971-06-03 1977-01-04 Exxon Research And Engineering Company Wettable non-woven structures and components thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579589A (en) * 1947-02-25 1951-12-25 American Felt Co Storage battery separator
FR1044328A (fr) * 1951-10-31 1953-11-17 Système de séparateurs d'accumulateurs ou de diaphragmés d'électrolyse et leur procédé de fabrication
FR79847E (fr) * 1960-08-09 1963-02-01 Nat Lead Co Objets fabriqués en une composition à base de cellulose et de polyéthylène
US3573994A (en) * 1968-01-31 1971-04-06 Alkaline Batteries Ltd Liquid permeable liquid absorbent porous sheet materials
US4000967A (en) * 1971-06-03 1977-01-04 Exxon Research And Engineering Company Wettable non-woven structures and components thereof

Also Published As

Publication number Publication date
FR2449337B1 (fr) 1981-12-04

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Legal Events

Date Code Title Description
ST Notification of lapse