WO2018136337A3 - Pretreatment of diaphragms used in electrochemical processes - Google Patents

Pretreatment of diaphragms used in electrochemical processes Download PDF

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Publication number
WO2018136337A3
WO2018136337A3 PCT/US2018/013654 US2018013654W WO2018136337A3 WO 2018136337 A3 WO2018136337 A3 WO 2018136337A3 US 2018013654 W US2018013654 W US 2018013654W WO 2018136337 A3 WO2018136337 A3 WO 2018136337A3
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
pretreatment
electrochemical processes
diaphragms used
diaphragms
Prior art date
Application number
PCT/US2018/013654
Other languages
French (fr)
Other versions
WO2018136337A2 (en
Inventor
Richard Clarke
James C. HAM
Original Assignee
Aqua Metals Inc.
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 Aqua Metals Inc. filed Critical Aqua Metals Inc.
Publication of WO2018136337A2 publication Critical patent/WO2018136337A2/en
Publication of WO2018136337A3 publication Critical patent/WO2018136337A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/04—Diaphragms; Spacing elements
    • 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
    • H01M50/417—Polyolefins
    • 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
    • C25B13/02—Diaphragms; Spacing elements characterised by shape or form
    • 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
    • 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/002—Cell separation, e.g. membranes, diaphragms
    • 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
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • 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
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0289—Means for holding the electrolyte
    • 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
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

Devices and methods for electrode diaphragms are presented in which a hydrophobic polymeric diaphragm is pretreated with ions present in an electrolyte under conditions that are effective to increase wettability of the diaphragm. It is contemplated that the diaphragm can first be exposed to a wetting agent and then placed in an aqueous electrolyte used in an electrochemical process. Current can be applied in an amount sufficient to drive ions of the ionic solution into the polymeric diaphragm.
PCT/US2018/013654 2017-01-18 2018-01-12 Pretreatment of diaphragms used in electrochemical processes WO2018136337A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762447602P 2017-01-18 2017-01-18
US62/447,602 2017-01-18

Publications (2)

Publication Number Publication Date
WO2018136337A2 WO2018136337A2 (en) 2018-07-26
WO2018136337A3 true WO2018136337A3 (en) 2018-08-30

Family

ID=62908310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/013654 WO2018136337A2 (en) 2017-01-18 2018-01-12 Pretreatment of diaphragms used in electrochemical processes

Country Status (1)

Country Link
WO (1) WO2018136337A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6778286B2 (en) * 2019-01-21 2020-10-28 デノラ・ペルメレック株式会社 Chamber frame element, electrolytic cell and electrodialysis tank

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930886A (en) * 1971-11-11 1976-01-06 Leesona Corporation Porous fluoro-carbon polymer matrices
US5679235A (en) * 1992-03-05 1997-10-21 Hydro-Quebec Titanium and cerium containing acidic electrolyte
CN101786302A (en) * 2009-11-13 2010-07-28 山东东岳高分子材料有限公司 Simple and easy stripping method of composite ion exchange membrane for chloroalkali industry
US20100279167A1 (en) * 2004-03-18 2010-11-04 Watson Jill V Separator for a battery having a zinc electrode
US20150030933A1 (en) * 2012-01-19 2015-01-29 Sihl Gmbh Separator comprising a porous layer and method for producing said separator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930886A (en) * 1971-11-11 1976-01-06 Leesona Corporation Porous fluoro-carbon polymer matrices
US5679235A (en) * 1992-03-05 1997-10-21 Hydro-Quebec Titanium and cerium containing acidic electrolyte
US20100279167A1 (en) * 2004-03-18 2010-11-04 Watson Jill V Separator for a battery having a zinc electrode
CN101786302A (en) * 2009-11-13 2010-07-28 山东东岳高分子材料有限公司 Simple and easy stripping method of composite ion exchange membrane for chloroalkali industry
US20150030933A1 (en) * 2012-01-19 2015-01-29 Sihl Gmbh Separator comprising a porous layer and method for producing said separator

Also Published As

Publication number Publication date
WO2018136337A2 (en) 2018-07-26

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