GB1259051A - - Google Patents

Info

Publication number
GB1259051A
GB1259051A GB1745670A GB1259051DA GB1259051A GB 1259051 A GB1259051 A GB 1259051A GB 1745670 A GB1745670 A GB 1745670A GB 1259051D A GB1259051D A GB 1259051DA GB 1259051 A GB1259051 A GB 1259051A
Authority
GB
United Kingdom
Prior art keywords
laminated
sheet
cellophane
gelling agent
layer
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.)
Expired
Application number
GB1745670A
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 filed Critical
Publication of GB1259051A publication Critical patent/GB1259051A/en
Expired 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
    • H01M50/409—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
    • 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
    • H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
    • 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)

Abstract

1,259,051. Laminated battery separator. ESB Inc. 13 April, 1970, No. 17456/70. Head. ing B5N. [Also in Divisions C3 and H1] A laminated sheet for use as a battery separator comprises a semi-permeable membrane barrier material laminated to an absorbent sheet material consisting essentially of 10-30% by weight of a vinyl acetate-ethylene copolymer resin binder blended with a gelling agent. The semi-permeable layer preferably has a micropore size ranging from 5 to 50 Angstroms and is preferably made of "Cellophane" (Registered Trade Mark). Other suitable microporous materials for this layer are polyamide, polyester, polyolefin, polyvinyl chloride and acetate, and polyacrylate. The gelling agent may be selected from starch, flour, methyl and carboxymethyl cellulose, polyacrylamide resins, natural gums such as gum arabic, inorganic gelling agents such as silica gel and admixtures thereof. The two layers may be laminated using gum arabic as adhesive, or one or both layers may be treated with a solution to tackify the layer(s) after which they are laminated together. Alternatively the separator may be prepared by dissolving the vinyl acetate-ethylene copolymer in a solvent such as trichloroethylene and then adding the gelling agent such as wheat flour/ corn starch mixture. The viscous liquid formed after mixing is cast on a wetted "Cellophane" sheet by feeding it through an aperture or extrusion die. The laminated sheet is then heated to evaporate the solvent and water and is then calendered to a thickness of 4 to 18 mils using a 1 to 3 mil "Cellophane" sheet.
GB1745670A 1970-04-13 1970-04-13 Expired GB1259051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1745670 1970-04-13

Publications (1)

Publication Number Publication Date
GB1259051A true GB1259051A (en) 1972-01-05

Family

ID=10095499

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1745670A Expired GB1259051A (en) 1970-04-13 1970-04-13

Country Status (1)

Country Link
GB (1) GB1259051A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671320A (en) * 1993-10-29 1997-09-23 Time Warner Entertainment Co., L. P. System and method for controlling play of multiple dialog audio tracks of a software carrier
CN111799423A (en) * 2020-07-13 2020-10-20 天能电池(芜湖)有限公司 High-performance partition plate for prolonging service life of battery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5671320A (en) * 1993-10-29 1997-09-23 Time Warner Entertainment Co., L. P. System and method for controlling play of multiple dialog audio tracks of a software carrier
CN111799423A (en) * 2020-07-13 2020-10-20 天能电池(芜湖)有限公司 High-performance partition plate for prolonging service life of battery

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees