| HYDRO-QUEBEC Patent applications |
| Patent application number | Title | Published |
|---|
| 20120135311 | Li4Ti5O12, Li(4-alpha)ZalphaTi5O12 OR Li4ZbetaTi(5-beta)O12 PARTICLES, PROCESSES FOR OBTAINING SAME AND USE AS ELECTROCHEMICAL GENERATORS - Synthesis process for new particles of Li | 05-31-2012 |
| 20120070903 | METHOD AND APPARATUS FOR MEASURING THE HOT-SPOT TEMPERATURE IN AN ELECTRIC APPARATUS CONTAINING AN OIL - A method for measuring the real hot-spot temperature in an electric apparatus containing an oil, such as an electric power transformer. The electric apparatus is operated under predetermined and modifiable operating conditions. This method comprises the use of one or several chemical compounds or tracers present and soluble in the oil. Each tracer may transform, at a given temperature, in order to form a residue, such as a soluble gas. From the presence of the residue in the oil, the operator will be able to determine under which predetermined operating condition the hot-spot has been reached and to deduce the hot-spot for a given condition. Among different used compounds, there are diazoic compounds, carbonyl metals, colorants, pigments, liquid crystals and albumins. The method also allows to check the quality of the apparatus on the market and to estimate its life span. | 03-22-2012 |
| 20120017429 | Process for the Preparation of an Electrode from a Porous Material, Electrode Thus Obtained and Corresponding Electrochemical System - Process for the preparation of electrodes from a porous material making it possible to obtain electrodes that are useful in electrochemical systems and that have at least one of the following properties: a high capacity in mAh/gram, a high capacity in mAh/liter, a good capacity for cycling, a low rate of self discharge, and a good environmental tolerance. | 01-26-2012 |
| 20110287325 | METHOD FOR PREPARING AN ELECTROCHEMICAL CELL HAVING A GEL ELECTROLYTE - The invention relates to a method for manufacturing an electrochemical cell comprising an anode and a cathode separated by a separator and a gel electrolyte. The method comprises the steps of assembling the electrodes and the separator, and injecting a liquid electrolyte composition between the electrodes, the liquid electrolyte composition comprising a polymer, an aprotic liquid solvent and a lithium salt, wherein the polymer in the liquid electrolyte composition has functional groups capable of polymerizing via cationic polymerization, and the cell is submitted to an electrochemical cycling comprising a charging step and a discharging step. | 11-24-2011 |
| 20110266495 | COMPOSITE ELECTRODE MATERIAL - The invention relates to a composite electrode material consisting of a carbon coated complex oxide, fibrous carbon and a binder. Said material is prepared by a method which comprises co-grinding an active electrode material and fibrous carbon, and adding a binder to the co-grinded mixture to lower the viscosity of the mixture. The fibrous carbon is preferably vapor grown carbon fibers. | 11-03-2011 |
| 20110195228 | COMPOSITE MATERIALS FOR WETTABLE CATHODES AND USE THEREOF FOR ALUMINIUM PRODUCTION - The invention relates to a composite material of formula: (C—N—B-MR) | 08-11-2011 |
| 20110123858 | COMPOSITE ELECTRODE MATERIAL - The invention relates to a composite material comprising carbon fibers and complex oxide particles, wherein the carbon fibers and the complex oxide particles have a carbon coating on at least part of their surface, said carbon coating being a non powdery coating The material is prepared by a method comprising mixing a complex oxide or precursors thereof, an organic carbon precursor and carbon fibers, and subjecting the mixture to a heat treatment in an inert or reducing atmosphere for the decomposition of the precursors The material is useful as the cathode material in a battery | 05-26-2011 |
| 20110117306 | FLUOROSULPHONATED ELASTOMERS WITH LOW GLASS TRANSITION BASED OF VINYLIDENE FLUORIDE - The present invention describes the synthesis of new sulforated fluorinated elastomers having very low glass transition temperatures (T | 05-19-2011 |
| 20110108771 | COMPOSITION, METHOD AND DEVICE FOR APPLYING A COATING ON A SUPPORT - A composition for applying a coating on a support at low temperature from a dispersion of at least a component of the coating to be deposited in the composition. The composition includes at least a strong and heavy solvent with a boiling point higher than 150° C. approximately, and a weak solvent with a boiling point less than 100° C. approximately. The solvents forming the composition must constitute a mixture that evaporates at a temperature less than 100° C. The composition is particularly useful for forming electrodes or electrolyte in lithium-ion batteries. The method and the device used for forming the coating use a dispersion spreader and an infrared lamp. | 05-12-2011 |
| 20100330317 | HEXAFLUOROPROPENE-BASED FLUOROSULFONATED ELASTOMERS WITH A LOW GLASS TRANSITION TEMPERATURE, CONTAINING NEITHER TETRAFLUOROETHYLENE NOR A SILOXANE GROUP - The present invention describes the synthesis of new fluorinated elastomers with very low glass transition temperatures (T | 12-30-2010 |
| 20100176814 | APPARATUS AND METHOD FOR MONITORING A PHASE LINE OF A SECTION OF AN ELECTRICAL ENERGY TRANSMISSION LINE - An appliance and a method are intended to monitor a phase line of a section of an electrical energy grid line. The appliance comprises a device for monitoring a parameter of a phase line. The parameter is representative of routine operating conditions of the phase line and has a known propagation speed. The appliance also comprises a device for generating an event detection signal each time the parameter has a value that exceeds a threshold, and for storing a reception time when the detection signal is generated. The appliance also has a device for sending a signal representative of a geographic location of the end of the section and a device for performing a geographic location of the event once two consecutive detection signals are generated from the signal representative of the geographic location, and reception times associated with the two detection signals. | 07-15-2010 |
| 20100173160 | METHOD FOR PREPARING CERAMIC POWDERS IN THE PRESENCE OF A CARBON SOURCE, POWDERS OBTAINED AND USE THEREOF - A method for preparing ceramic powders in the presence of a carbon powder comprising a step of homogenizing a mixture of particles capable of resulting in a ceramic by heat treatment. Said method can be carried out in the presence of an accelerated solvent and provides, at reduced energy consumption, carbon-coated ceramic powders and then ceramics. | 07-08-2010 |
| 20100159152 | NANOCRYSTALLINE ALLOYS OF THE FE3AL(RU) TYPE AND USE THEREOF OPTIONALLY IN NANOCRYSTALLINE FORM FOR MAKING ELECTRODES FOR SODIUM CHLORATE SYNTHESIS - The invention concerns a nanocrystalline alloy of the formula: | 06-24-2010 |
| 20100092808 | Potato-Shaped Graphite Particles with Low impurity Rate at the Surface, Method for Preparing the Same - Modified graphite particles obtained from graphite or based on graphite, the said particles having impurities in their internal structure and having on the surface a low, even nil, rate of an impurity or several impurities. In addition, these particles have at least one of the following characteristics:
| 04-15-2010 |
| 20100092782 | PROCESS FOR TREATING WOOD FOR INCREASING THE LIFETIME THEREOF AND WOOD THUS OBTAINED - Process for treating wood consisting in injecting in cavities of the wood a solution of at least one fungicide and/or bactericide and/or insecticide and at least one monomer that can progressively form a polymer matrix in the cavities of the wood and then a gel in the cavities of the wood. The treated woods thus obtained exhibit an improved lifetime. | 04-15-2010 |
| 20100071811 | AMORPHOUS Fe100-a-bPaMb ALLOY FOIL AND METHOD FOR ITS PREPARATION - Amorphous Fe | 03-25-2010 |
| 20100065787 | METHOD FOR SYNTHESIS OF CARBON-COATED REDOX MATERIALS WITH CONTROLLED SIZE - A method for the synthesis of compounds of the formula C—Li | 03-18-2010 |
| 20100047692 | PARTICLES CONTAINING A NON-CONDUCTING OR SEMI-CONDUCTING NUCLEUS COVERED WITH A HYBRID CONDUCTING LAYER, THEIR PROCESSES OF PREPARATION AND USES IN ELECTROCHEMICAL DEVICES - Mixture of particles comprising a non-conducting or semi-conducting nucleus covered with a hybrid conductor coating and hybrid conductor chains located between the particles of the mixture to constitute a conductivity network, that is prepared by mechanical crushing. Due to a very good conductivity of the network, a low resistivity, a very good capacity under elevated current and/or a good density of energy, these mixtures of particles are advantageously incorporated in anodes and cathodes of electrochemical generators, resulting in highly performing electrochemical systems. | 02-25-2010 |
| 20090315001 | PROCESS FOR PREPARING CERAMICS, CERAMICS THUS OBTAINED AND USES THEREOF, ESPECIALLY AS A SPUTTERING TARGET - Process for preparing a ceramic from an inorganic base material that is in the form of a powder having a high melting point, comprising a step of mixing the powder of the inorganic base material with a second inorganic component also in powder form and which acts as a dopant for the inorganic base material. The dopant is constituted by a single inorganic material or by a mixture of at least two inorganic materials having a dopant effect on the inorganic base material. The process comprises a sintering step carried out at a high temperature. The ceramics obtained, because of their high density, are advantageously used as a target element. Films and electrodes obtained from these ceramics exhibit particularly advantageous properties. | 12-24-2009 |
| 20090301866 | MULTILAYER MATERIAL, METHOD FOR MAKING SAME AND USE AS ELECTRODE - A multilayer material includes a solid substrate and at least two superimposed solid layers containing particles of an electrochemically active material, the first solid layer adhering to the solid substrate and the second solid layer adhering to the first solid layer. The multilayer material has a constant thickness of upper layer not less than 95% and a depth of penetration of the second layer into the first layer which is less than 10% of the thickness of the first layer, and enables as electrode constituent, generators having a low risk of overload degradation to be prepared. | 12-10-2009 |
| 20090297727 | COMPOSITION, METHOD AND DEVICE FOR APPLYING A COATING ON A SUPPORT - A composition for applying a coating on a support at low temperature from a dispersion of at least a component of the coating to be deposited in the composition. The composition includes at least a strong and heavy solvent with a boiling point higher than 150° C. approximately, and a weak solvent with a boiling point less than 100° C. approximately. The solvents forming the composition must constitute a mixture that evaporates at a temperature less than 100° C. The composition is particularly useful for forming electrodes or electrolyte in lithium-ion batteries. The method and the device used for forming the coating use a dispersion spreader and an infrared lamp. | 12-03-2009 |
| 20090280410 | MULTILAYER MATERIAL BASED ON ACTIVE LITHIUM, METHOD OF PREPARATION AND APPLICATIONS IN ELECTROCHEMICAL GENERATORS - A method for preparing a multilayer material based on active lithium, by depositing a film of active lithium on a protective layer at a sufficient speed so that substantially no oxidation of the lithium occurs, and/or during a sufficient time for the adhesion of the lithium to develop after contact with the protective layer. The multilayer material, when incorporated in an electrochemical battery as an anode, has excellent impedance stability and no formation of dendrites during the cycling. Batteries where the anode is the multilayer material are particularly efficient in terms of their coulomb efficiency. | 11-12-2009 |
| 20090263723 | APROTIC POLYMER/MOLTEN SALT TERNARY MIXTURE SOLVENT, METHOD FOR THE PRODUCTION AND USE THEREOF IN ELECTROCHEMICAL SYSTEMS - The invention relates to an aprotic polymer/molten salt ternary mixture solvent and to a corresponding quaternary mixture additionally comprising an ionic conducting salt, which are prepared by mixing the constituents of the mixture. These mixtures are advantageously used in the preparation of electrochemical membranes, electrochemical systems and of electrochromic systems. The invention also relates to electrochemical and electrochromic systems obtained hereby that exhibit, in particular, excellent electrochemical properties at low temperatures. | 10-22-2009 |
| 20090123845 | Electrolyte purification method, electrolytes and generators thus obtained and use of same - Process for the purification of an ionic electrolyte comprising at least one alkali metal salt, the process having at least one stage in which particles of at least one calcium salt are brought into contact. The process makes it possible to obtain electrolytes characterized in particular by a particularly low water content. The corresponding electrochemical generators which incorporate the electrolyte as constituent component are characterized by a noteworthy stability and are particularly safe. | 05-14-2009 |
| 20090088533 | Fluorosulphonated nitrile crosslinkable elastomers based on vinylidene fluorine with low TG and methods for preparing same - Monomers corresponding to the formula Z | 04-02-2009 |
| 20090087709 | CO-CRUSHED MIXTURE OF AN ACTIVE MATERIAL AND OF A CONDUCTIVE MATERIAL, PREPARATION METHODS AND USES THEREOF - A mixture of particles having a carrier based on at least one active material M | 04-02-2009 |
| 20090076178 | Cross-Linkable Bi-Sulphonyl Derivatives And Their Uses For Preparing Ion-Exchanging Membranes - The present invention is concerned with novel ion-exchange membranes, their method of preparation and their uses. The membranes are made of a polymer obtained from a monomer or a mixture of bifunctional monomers of general formula [T-SO | 03-19-2009 |
| 20090038398 | MOTORIZED BRACELET ASSEMBLY FOR MOVING SENSOR MODULES AROUND A PIPE - A motorized bracelet assembly for ultrasonic crack detection in a pipe. The bracelet has a motorized frame adapted for installation around the pipe and a sliding arrangement slideably mounted onto the frame. The sliding arrangement guides a displacement of sensor modules in periphery of the pipe. A first driving device controllably drives the sliding arrangement and thereby displacing the sensor modules in periphery of the pipe at desired operating positions. The bracelet comprises biasing devices for biasing the sensor modules against the pipe and a second driving device for controllably driving the frame along the axial direction of the pipe at a desired operating position. | 02-12-2009 |
| 20090029263 | APROTIC POLYMER/MOLTEN SALT TERNARY MIXTURE SOLVENT, METHOD FOR THE PRODUCTION AND USE THEREOF IN ELECTROCHEMICAL SYSTEMS - The invention relates to an aprotic polymer/molten salt ternary mixture solvent and to a corresponding quaternary mixture additionally comprising an ionic conducting salt, which are prepared by mixing the constituents of the mixture. These mixtures are advantageously used in the preparation of electrochemical membranes, electrochemical systems and of electrochromic systems. The invention also relates to electrochemical and electrochromic systems obtained hereby that exhibit, in particular, excellent electrochemical properties at low temperatures. | 01-29-2009 |
| 20090017378 | COATED METAL OXIDE PARTICLES WITH LOW DISSOLUTION RATE, METHODS FOR PREPARING SAME AND USE THEREOF IN ELECTROCHEMICAL SYSTEMS - Particles comprising a core and a coat covering at least part of the core surface. The core has more than 50% of an acidic metal oxide and the core coating is based on a polymer, preferably based on a soiled polymer with high electrochemical stability. The particle has a solubility rate (ts), in fixed time, of the metal oxide migrating towards the electrolyte, per cycle, which is less than 5 per 10000. The particles are obtained by mixing the polymer and a metal oxide, via dry process with addition of solvent. The electrodes constituting an electrode substrate at least partly coated with a mixture consisting of at least 40 of those particles have remarkable electrochemical properties, in particular regarding the lifetime of batteries in which they are incorporated. | 01-15-2009 |
| 20080292809 | COMPOSITION, METHOD AND DEVICE FOR APPLYING A COATING ON A SUPPORT - A composition for applying a coating on a support at low temperature from a dispersion of at least a component of the coating to be deposited in the composition. The composition includes at least a strong and heavy solvent with a boiling point higher than 150° C. approximately, and a weak solvent with a boiling point less than 100° C. approximately. The solvents forming the composition must constitute a mixture that evaporates at a temperature less than 100° C. The composition is particularly useful for forming electrodes or electrolyte in lithium-ion batteries. The method and the device used for forming the coating use a dispersion spreader and an infrared lamp. | 11-27-2008 |
| 20080285211 | Li4Ti5O12,Li(4-alpha)ZalphaTi5O12 or Li4ZbetaTi(5-beta)O12 particles processes for obtaining same and use as electrochemical generators - Synthesis process for new particles of Li | 11-20-2008 |
| 20080276823 | Remote-Controlled Vehicle Designed to be Mounted on a Support and Capable of Clearing an Obstacle - The invention concerns a remote-controlled vehicle designed to be mounted on a support and capable of clearing an obstacle on the support. The vehicle comprises first and second mobile frames. At least one articulated arm is mounted mobile on the first frame and a wheel is mounted on the articulated arm to maintain the vehicle on the support. A fastening means co-operates with the wheel and is adapted to retain the wheel on the support. At least one temporary support arm is mounted mobile on the second frame. The temporary support arm comprises retaining means for maintaining the vehicle on the support. The vehicle comprises motor means connected between the frames and the arms for moving same with respect to one another so as to clear an obstacle encountered on the support. | 11-13-2008 |
| 20080213661 | Polymers Obtained From Monomers Allowing A Sequential Polymerization, And Their Use For Preparing Ionic Conductors - The present invention concerns polymers obtained by anionic initiation and bearing functions that can be activated by cationic initiations that are not reactive in the presence of anionic polymerization initiators. The presence of such cationic initiation functions allow an efficient cross-linking of the polymer after moulding, particularly in the form of a thin film. It is thus possible to obtain polymers with well-defined properties in terms of molecular weight and cross-linking density. The polymers of the present invention are capable of dissolving ionic compounds inducing a conductivity for the preparation of solid electrolytes. | 09-04-2008 |
