Abstract: A method for producing a polymer membrane for the potentiometric detection of an analyte, the method comprising the following successive steps: providing a formulation comprising a dissolved polymer, an ion exchanger, an ionophore, optionally a plasticiser, and a solvent selected from glycol ethers and acetates thereof, and glycol diacetates, depositing the formulation on a support, for example a transducer, and evaporating the solvent, so as to form a polymer membrane.

Abstract: A medical drain sensor is provided located in a region of a drain tube which has turbulent or re-circulatory exudate flow. Means are provided in some embodiments to promote or enhance such flow.

Abstract: A method for detecting a malfunction of an acoustic sensor coupled to an electrochemical generator includes applying an electrical signal at a given frequency and a given amplitude, termed the signal frequency and signal amplitude; measuring, by the acoustic sensor, an acoustic signal emitted by the electrochemical generator in response to the application of the electrical signal; and, when the amplitude of the acoustic signal is below a predetermined threshold value, and detecting a malfunction of the acoustic sensor.

Abstract: A method for detecting a malfunction of an acoustic sensor coupled to an electrochemical generator includes applying an electrical signal at a given frequency and a given amplitude, termed the signal frequency and signal amplitude; measuring, by the acoustic sensor, an acoustic signal emitted by the electrochemical generator in response to the application of the electrical signal; and, when the amplitude of the acoustic signal is below a predetermined threshold value, and detecting a malfunction of the acoustic sensor.

Abstract: A medical drain sensor is provided located in a region of a drain tube which has turbulent or re-circulatory exudate flow. Means are provided in some embodiments to promote or enhance such flow.

Abstract: A method recalibrates in situ a comparison electrode integrated into an electrochemical system. The electrochemical system includes a working electrode, a counter electrode, and an electrolyte. The method includes verifying a potential of the comparison electrode relative to the working electrode or to the counter electrode in situ, detecting whether there is a drift in the potential of the comparison electrode relative to a potential plateau for which the comparison electrode was functionalized or designed, and when the drift is detected, recalibrating the comparison electrode in situ.

Abstract: A device for managing an accumulator, including: a plurality of strain gauges including at least three strain gauges, the strain gauges being arranged to measure stresses along at least three distinct stress axes; a measuring device measuring strains undergone by each gauge along its stress axis; a reversible electrical switch; a calculating device controlling opening and closing of the electrical switch, depending on measurements carried out by the measuring device.

Abstract: A method recalibrates in situ a comparison electrode integrated into an electrochemical system. The electrochemical system includes a working electrode, a counter electrode, and an electrolyte. The method includes verifying a potential of the comparison electrode relative to the working electrode or to the counter electrode in situ, detecting whether there is a drift in the potential of the comparison electrode relative to a potential plateau for which the comparison electrode was functionalized or designed, and when the drift is detected, recalibrating the comparison electrode in situ.

Abstract: An electrochemical system includes an electrolyte that includes at least one ionic form of a chemical element A chosen from lithium and sodium. The electrolyte is in contact with a comparison electrode, a working electrode and a counterelectrode. The comparison electrode includes a first part in contact with the electrolyte and including a metal M capable of alloying with the chemical element, or a metal alloy of the metal M and of the chemical element A. The comparison electrode also includes a second part including an electrically conducting material, chemically inert with respect to the chemical element A and its ionic form and in direct contact with the first part of the comparison electrode.

Abstract: Method for determining the state of health of a battery, using a sensor of the acoustic activity of the battery, comprising the following steps: detection of at least one acoustic event by the sensor; determination of the value of at least one parameter for each acoustic signal detected in the course of the elementary cycle of use; calculation, for the elementary cycle of use, of a value of acoustic density according to a density calculation function taking into account said at least one parameter determined for each of the acoustic signals detected in the course of the cycle; calculation of a state of health value corresponding to said previously calculated acoustic density value, on the basis of a functional relation or a predetermined database, making it possible to know the state of health for a given acoustic density value.

Abstract: A device for managing an accumulator, including: a plurality of strain gauges including at least three strain gauges, the strain gauges being arranged to measure stresses along at least three distinct stress axes; a measuring device measuring strains undergone by each gauge along its stress axis; a reversible electrical switch; a calculating device controlling opening and closing of the electrical switch, depending on measurements carried out by the measuring device.

Abstract: Silicon/carbon composite material, consisting of at least one capsule comprising a silicon shell within which there are carbon nano-objects partially or totally covered with silicon, and silicon nano-objects. The capsule may further comprise an amorphous carbon shell inside the silicon shell and adjacent to the latter. A method for preparing said composite material is disclosed.

Abstract: The invention relates to a process for manufacturing a silicon-based electrode and to a silicon-based electrode. It also relates to a lithium battery comprising such an electrode. The process of the invention consists in fabricating a silicon-based electrode of the type that includes a step of electrochemically depositing silicon on a substrate by cyclic voltammetry in a solution comprising at least one ionic liquid and a silicon precursor of formula SinX2n+2, in which x is Cl, Br or I and n is equal to 1 or 2. The electrode of the invention is particularly applicable in the lithium battery field.

Abstract: Process for preparing composite silicon/carbon material composed of carbon-coated silicon particles, wherein the following successive steps are carried out: silicon particles are mixed with a solution of an oxygen-free polymer in a solvent, whereby a dispersion of silicon particles in the polymer solution is obtained; the dispersion obtained in step a) is subjected to a spray-drying operation whereby a composite silicon/polymer material consisting of silicon particles coated with the polymer is obtained; the material obtained in step a) is pyrolyzed whereby the composite silicon/carbon material composed of carbon-coated silicon particles is obtained.