IT1109213B - IMPROVEMENT IN ELECTROCHEMICAL CELLS AND RELATED PRODUCTION PROCEDURES - Google Patents

IMPROVEMENT IN ELECTROCHEMICAL CELLS AND RELATED PRODUCTION PROCEDURES

Info

Publication number
IT1109213B
IT1109213B IT5145878A IT5145878A IT1109213B IT 1109213 B IT1109213 B IT 1109213B IT 5145878 A IT5145878 A IT 5145878A IT 5145878 A IT5145878 A IT 5145878A IT 1109213 B IT1109213 B IT 1109213B
Authority
IT
Italy
Prior art keywords
improvement
electrochemical cells
related production
production procedures
procedures
Prior art date
Application number
IT5145878A
Other languages
Italian (it)
Other versions
IT7851458A0 (en
Original Assignee
Electrochem Energieconversie
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 Electrochem Energieconversie filed Critical Electrochem Energieconversie
Publication of IT7851458A0 publication Critical patent/IT7851458A0/en
Application granted granted Critical
Publication of IT1109213B publication Critical patent/IT1109213B/en

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/24Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2465Details of groupings of fuel cells
    • H01M8/2483Details of groupings of fuel cells characterised by internal manifolds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/20Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/302Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/543Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining more than two hollow-preforms to form said hollow articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/81General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00Primary cells; Manufacture thereof
    • H01M6/42Grouping of primary cells into batteries
    • H01M6/46Grouping of primary cells into batteries of flat cells
    • H01M6/48Grouping of primary cells into batteries of flat cells with bipolar electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/02Details
    • H01M8/0271Sealing or supporting means around electrodes, matrices or membranes
    • H01M8/0273Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/24Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2404Processes or apparatus for grouping fuel cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/24Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/241Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/24Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/241Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
    • H01M8/242Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes comprising framed electrodes or intermediary frame-like gaskets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832Reciprocating joining or pressing tools
    • B29C66/8322Joining or pressing tools reciprocating along one axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/34Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3468Batteries, accumulators or fuel cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30Hydrogen technology
    • Y02E60/50Fuel cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fuel Cell (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Secondary Cells (AREA)
  • Inert Electrodes (AREA)
  • Primary Cells (AREA)
IT5145878A 1977-10-14 1978-10-11 IMPROVEMENT IN ELECTROCHEMICAL CELLS AND RELATED PRODUCTION PROCEDURES IT1109213B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7711288 1977-10-14

Publications (2)

Publication Number Publication Date
IT7851458A0 IT7851458A0 (en) 1978-10-11
IT1109213B true IT1109213B (en) 1985-12-16

Family

ID=19829342

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5145878A IT1109213B (en) 1977-10-14 1978-10-11 IMPROVEMENT IN ELECTROCHEMICAL CELLS AND RELATED PRODUCTION PROCEDURES

Country Status (11)

Country Link
JP (1) JPS5465338A (en)
BE (1) BE871222A (en)
CA (1) CA1129946A (en)
CH (1) CH644228A5 (en)
DE (1) DE2844695A1 (en)
ES (1) ES474165A1 (en)
FR (1) FR2406313A1 (en)
GB (1) GB2006101B (en)
IT (1) IT1109213B (en)
NL (1) NL7810013A (en)
SE (1) SE7810731L (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502850A1 (en) * 1981-03-26 1982-10-01 Tregie FUEL CELL IMPROVEMENT
JPS58103779A (en) * 1981-12-16 1983-06-20 Meidensha Electric Mfg Co Ltd Electrode end plate of stacked cell
JPS58157063A (en) * 1982-03-12 1983-09-19 Mitsubishi Electric Corp Sealing of layer-built fuel cell
JPS6074359A (en) * 1983-09-30 1985-04-26 Mitsui Eng & Shipbuild Co Ltd Electrode reaction device
FR2568412B1 (en) * 1984-07-27 1986-10-17 Occidental Chem Co IMPROVEMENTS ON THE STRUCTURES OF FUEL CELLS.
GB2178223A (en) * 1985-07-18 1987-02-04 Int Fuel Cells Corp Polymeric molded frames for an alkali electrochemical cell
JPS62120265U (en) * 1986-01-22 1987-07-30
JPS6372853U (en) * 1986-10-30 1988-05-16
JPS63155265U (en) * 1987-03-31 1988-10-12
JPH02133783U (en) * 1989-04-11 1990-11-06
NL1014405C1 (en) 2000-02-17 2001-08-20 Nedstack Holding B V Method of Manufacture Polymer Electrolyte Fuel Cells.
GB0110920D0 (en) * 2001-05-03 2001-06-27 Morgan Crucible Co Flow field plates and a method for forming a seal between them
GB2380853A (en) * 2001-10-11 2003-04-16 Morgan Crucible Co Fuel cell or electrolyser construction
US7820336B2 (en) * 2006-10-05 2010-10-26 Dic Corporation Fuel cell bipolar plate, and fuel cell
CN113997574B (en) * 2021-11-01 2023-07-18 南京工程学院 Ultrasonic welding method for fiber reinforced thermoplastic resin composite sheet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1534904A (en) * 1967-06-22 1968-08-02 Wonder Piles Improvements to waterproof electric batteries
US3544383A (en) * 1968-12-16 1970-12-01 Esb Inc Method of sealing an electric battery by means of spin welding
GB1365483A (en) * 1970-11-21 1974-09-04 Lucas Industries Ltd Method of joining parts wherein one of the parts is formed of a porous hydrophobic non stick synthetic resin material
US3775189A (en) * 1972-02-25 1973-11-27 Gould Inc Forming sealed housings for electrochemical cells
GB1425030A (en) * 1972-07-05 1976-02-18 Lucas Batteries Ltd Method of joining a pair of parts
NL7509675A (en) * 1975-08-14 1977-02-16 Stamicarbon PROCESS OF MANUFACTURING AN ELECTROCHEMICAL CELL OR BATTERY, FOR EXAMPLE A FUEL CELL OR FUEL CELL BATTERY, AND CELL OR BATTERY MANUFACTURED ACCORDING TO THIS PROCESS.

Also Published As

Publication number Publication date
DE2844695A1 (en) 1979-04-26
BE871222A (en) 1979-04-13
NL7810013A (en) 1979-04-18
CA1129946A (en) 1982-08-17
JPS6244386B2 (en) 1987-09-19
GB2006101A (en) 1979-05-02
GB2006101B (en) 1982-03-24
FR2406313B1 (en) 1983-10-07
CH644228A5 (en) 1984-07-13
JPS5465338A (en) 1979-05-25
FR2406313A1 (en) 1979-05-11
IT7851458A0 (en) 1978-10-11
SE7810731L (en) 1979-04-15
ES474165A1 (en) 1979-10-16
DE2844695C2 (en) 1987-09-24

Similar Documents

Publication Publication Date Title
IT1079948B (en) IMPROVEMENT IN ELECTROLYTIC CELLS
NO149298C (en) ELECTROCHEMICAL CELL AND PROCEDURES IN MANUFACTURING THEREOF
IT1077612B (en) BIPOLAR SEPTANT CONDUCTOR FOR ELECTROCHEMICAL CELLS AND PREPARATION METHOD
IT1100486B (en) REDUCING ADDITIVES FOR NON-AQUOUS CELL CATHODES
NO149013C (en) ELECTROCHEMICAL CELL
IT1041242B (en) IMPROVEMENT IN LITHIC ELECTRO CELLS IN PARTICULAR CATHODE DIAPHRAGMS
MX146807A (en) IMPROVEMENTS IN GALVANICA CELL
IT1057414B (en) IMPROVEMENT IN NON-AQUOUS ELECTROLYTE ELECTROCHEMICAL BATTERIES
NL188822B (en) ELECTROCHEMICAL CELL.
IT1113049B (en) THIN AND FLEXIBLE ELECTRODES, PROCEDURE TO PRODUCE THEM AND CELLS THAT USE THEM
IT1079755B (en) IMPROVEMENT IN ZINC-OXYGEN ELECTROCHEMICAL CELLS
BE856390A (en) ANODES FOR ELECTROLYTIC CELLS AND THEIR PREPARATION
IT1109213B (en) IMPROVEMENT IN ELECTROCHEMICAL CELLS AND RELATED PRODUCTION PROCEDURES
BR7705131A (en) ELECTRODE AND MONOPOLAR ELECTROLYTIC CELL
IT1066108B (en) PROCEDURE FOR THE PRODUCTION OF ELECTROCHEMICAL CELLS AND PRODUCT OBTAINED
IT1053808B (en) IMPROVEMENT IN DIAPHRAGM ELECTROCHEMICAL CELLS
NL188063C (en) ELECTROCHEMICAL CELL.
IT1061870B (en) IMPROVEMENT IN ELECTROCHEMICAL CELLS
IT1035873B (en) IMPROVEMENT IN GALVANIC CELLS
IT1053411B (en) IMPROVEMENT IN DIAPHRAGM ELECTROLYTIC CELLS
NL7804333A (en) ELECTROCHEMICAL CELL.
IT1092188B (en) IMPROVEMENT IN PROCEDURES AND DEVICES FOR THE ASSEMBLY OF ELECTROLYTIC CELLS
IT1091770B (en) IMPROVEMENT IN DIAPHRAGMS FOR ELECTROLYSIS-CHLORINE-ALCALINE CELLS
IT1116575B (en) IMPROVEMENT IN COLLECTORS AND SOLAR CELLS
SE417108C (en) CULTURE TO CULTURE ANCHORABLE TISSUE CELL CELLS ON MICROBATORS

Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940919