摘要:
A rechargeable battery comprising a positive electrode, a negative electrode and an electrolyte, wherein: —the electrolyte comprises a SEI film-forming agent, and—the negative electrode comprises a micrometric Si based active material, a polymeric binder material and a conductive agent, wherein at least part of the surface of the Si based active material consists of Si—OCO—R groups, Si being part of the active material, and R being the polymeric chain of the binder material.
摘要:
A rechargeable battery comprising a positive electrode, a negative electrode and an electrolyte, wherein: —the electrolyte comprises a SEI film-forming agent, and—the negative electrode comprises a micrometric Si based active material, a polymeric binder material and a conductive agent, wherein at least part of the surface of the Si based active material consists of Si—OCO—R groups, Si being part of the active material, and R being the polymeric chain of the binder material.
摘要:
A rechargeable battery comprising a positive electrode, a negative electrode and an electrolyte, wherein: —the electrolyte comprises a SEI film-forming agent, and—the negative electrode comprises a micrometric Si based active material, a polymeric binder material and a conductive agent, wherein at least part of the surface of the Si based active material consists of Si—OCO—R groups, Si being part of the active material, and R being the polymeric chain of the binder material.
摘要:
A method for preparing an electrode composition, including a step of forming a suspension, in an unbuffered aqueous acid medium having a pH of 1 or in a buffered acid medium having a pH less than or equal to 4, containing an electrode active material in the form of particles of an element M selected from Si, Sn, and Ge, a polymer binder having reactive groups capable of reacting with hydroxyl groups in an acid medium, and an agent generating electronic conductivity. The invention also relates to the electrode obtained according to the method, as well as to a battery including such an electrode.
摘要:
A method for producing nanostructured coatings on a substrate, comprising: preparing a nanocrystalline powder of a powder size comprised between 1 and 60 μm; and combining cleaning the surface of the substrate and cold spraying the nanocrystalline powder on the surface of the substrate, and a system for producing nanocrystalline coatings on a substrate, comprising a spray head, a cleaning head and a handling system monitoring the spray head and the cleaning head relative to the substrate to be coated, the spray head being a first cold spray head, the first cold spray head depositing on the substrate at least one nanocrystalline powder, the cleaning head optimizing the surface being coated with the at least one layer of nanocrystalline powder.
摘要:
An electrochemical method and system for removing nitrate and ammonia in effluents, using an undivided flow-through electrolyzer, said electrolyzer comprising at least one cell, each cell comprising at least one anode and one cathode, the cathode being in a copper/nickel based alloy of a high corrosion resistance and a high electroactivity for nitrate reduction to ammonia and the anode being a DSA electrode of a high corrosion resistance and a high electroactivity for ammonia oxidation to nitrogen in presence of chloride.