WO1993016217A3 - Separators for electrolytic cells and processes for making - Google Patents

Separators for electrolytic cells and processes for making Download PDF

Info

Publication number
WO1993016217A3
WO1993016217A3 PCT/US1993/000878 US9300878W WO9316217A3 WO 1993016217 A3 WO1993016217 A3 WO 1993016217A3 US 9300878 W US9300878 W US 9300878W WO 9316217 A3 WO9316217 A3 WO 9316217A3
Authority
WO
WIPO (PCT)
Prior art keywords
making
polymeric solids
slurry
diaphragm
separators
Prior art date
Application number
PCT/US1993/000878
Other languages
French (fr)
Other versions
WO1993016217A2 (en
Inventor
Neal A Grob
John P Mcgraw Jr
John W Gross Sr
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of WO1993016217A2 publication Critical patent/WO1993016217A2/en
Publication of WO1993016217A3 publication Critical patent/WO1993016217A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

A process for forming an electrolyte-permeable diaphragm on a foraminous structure for use in an electrolytic cell, comprising the steps of i) making a slurry from an aqueous medium and containing as undissolved, particulate materials polyfluoroethylene fibers, a polymeric solids dispersion, and talc, wherein the ratio by weight in the slurry of talc to the polymeric solids of said polymeric solids dispersion is less than 4.5, ii) depositing a diphragm on the foraminous structure by drawing the slurry therethrough, iii) drying the diaphragm, and iv) sintering at least the polymeric solids from said dispersion in the diaphragm.
PCT/US1993/000878 1992-02-13 1993-02-02 Separators for electrolytic cells and processes for making WO1993016217A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US83517492A 1992-02-13 1992-02-13
US07/835,174 1992-02-13
US85204192A 1992-03-16 1992-03-16
US07/852,041 1992-03-16

Publications (2)

Publication Number Publication Date
WO1993016217A2 WO1993016217A2 (en) 1993-08-19
WO1993016217A3 true WO1993016217A3 (en) 1993-10-28

Family

ID=27125763

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/000878 WO1993016217A2 (en) 1992-02-13 1993-02-02 Separators for electrolytic cells and processes for making

Country Status (2)

Country Link
AU (1) AU3603393A (en)
WO (1) WO1993016217A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5685755A (en) * 1995-09-07 1997-11-11 The Dow Chemical Company Non-asbestos diaphragm separator
FR2803309B1 (en) * 1999-12-30 2002-05-03 Chloralp ASBESTOS-FREE DIAPHRAGM COMPRISING NON-FIBROUS MINERAL PARTICLES, ASSOCIATION COMPRISING THE SAME, OBTAINING AND USING THE SAME
ITMI20072271A1 (en) 2007-12-04 2009-06-05 Industrie De Nora Spa SEPARATOR FOR CHLORINE-ALCALE ELECTROLYTIC CELLS AND METHOD FOR ITS MANUFACTURE
CN116936922B (en) * 2023-09-19 2023-12-01 苏州清陶新能源科技有限公司 Solid electrolyte membrane, preparation method thereof and lithium ion battery

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307058A1 (en) * 1975-04-10 1976-11-05 Basf Wyandotte Corp DIAPHRAGMS CONSTITUTED BY SEPARATE THERMOPLASTIC FIBERS, UNBOUND OR UNGLUED
EP0037140A1 (en) * 1980-03-27 1981-10-07 SOLVAY & Cie (Société Anonyme) Process for electrolyzing aqueous alkali metal halide solutions using a pervious diaphragm of a hydrophobic polymeric organic material
US4606805A (en) * 1982-09-03 1986-08-19 The Dow Chemical Company Electrolyte permeable diaphragm and method of making same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2307058A1 (en) * 1975-04-10 1976-11-05 Basf Wyandotte Corp DIAPHRAGMS CONSTITUTED BY SEPARATE THERMOPLASTIC FIBERS, UNBOUND OR UNGLUED
EP0037140A1 (en) * 1980-03-27 1981-10-07 SOLVAY & Cie (Société Anonyme) Process for electrolyzing aqueous alkali metal halide solutions using a pervious diaphragm of a hydrophobic polymeric organic material
US4606805A (en) * 1982-09-03 1986-08-19 The Dow Chemical Company Electrolyte permeable diaphragm and method of making same

Also Published As

Publication number Publication date
WO1993016217A2 (en) 1993-08-19
AU3603393A (en) 1993-09-03

Similar Documents

Publication Publication Date Title
EP0814527A3 (en) A redox flow type battery
ATE77003T1 (en) CARBON-PLASTIC ELECTRODE ELEMENTS.
CA2081063A1 (en) Method of making membrane-electrode assemblies for electrochemical cells and assemblies made thereby
IL44017A (en) Method of coating a cathode with an asbestos diaphragm
US5348820A (en) Zinc electrode for alkaline storage battery
EP0969537A4 (en) Lithium manganate, method of producing the same, and lithium cell produced by the method
CA2034707A1 (en) Method of electrode fabrication for solid oxide electrochemical cells
JPS6428392A (en) Apparatus for supplying current to dipole plate perforated anode of battery accumulated body in filter press structure
WO1993016217A3 (en) Separators for electrolytic cells and processes for making
CA2211518A1 (en) Ultra-thin plate electrochemical cell and method of manufacture
CA1205130A (en) Rechargeable lead-hydrogen electrochemical cell
ATE232549T1 (en) ELECTROLYTIC MEMBRANE, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF
MY100561A (en) Filter paper and method of producing same
EP0056724A3 (en) Polymeric structure for hydrogen storage
US4822544A (en) Dry process for fabricating a unitary membrane-electrode structure
McCarthy et al. Characterisation of cake compressibility in dead-end microfiltration of microbial suspensions
GB2164484A (en) Retainer type lead-acid battery
CN110459720A (en) A kind of preparation method of lignin-oxide ceramic coating
JPS5553065A (en) Closed-type lead accumulator
CA2223858A1 (en) Method for preparing diaphragm for use in chlor-alkali cells
US5324333A (en) Cadmium oxide electrode with binding agent
GB1300506A (en) Improvements in or relating to electrolytic cells
US3652338A (en) Electrochemical system comprising layered silicate film separator
CA2368832A1 (en) Process for the production of a composite membrane
JPS5795071A (en) Manufacture of separator for acid battery

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AT AU BB BG BR CA CH CZ DE DK ES FI GB HU JP KR LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR SN TD TG

AK Designated states

Kind code of ref document: A3

Designated state(s): AT AU BB BG BR CA CH CZ DE DK ES FI GB HU JP KR LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA

122 Ep: pct application non-entry in european phase