摘要:
The invention relates to an electrolyte for lithium-ion batteries, comprising a mixture of ethylene carbonate (EC) and/or mono- or polyfluorinated ethylene carbonate, at least one sulfone derivative and at least one lithium source as a conducting salt, wherein the mixture has a flash point above 85°C. The invention further relates to the use of the electrolyte as an electrolyte in a lithium-ion cell and to a lithium-ion battery comprising the electrolyte.
摘要:
Die vorliegende Erfindung betrifft photovernetzende Systeme, die mittels sichtbaren Lichts aktivierbar sind. Dabei betrifft die vorliegende Erfindung insbesondere die photoinduzierte Verknüpfungen von Doppelbindungen enthaltenden Strukturen mittels perizyllischen Reaktionen durch Zusatz von speziellen Azirin-Verbindungen. Eine Vernetzung kann dabei bereits durch sichtbares Licht, insbesondere mit einer Wellenlänge λ größer 380 nm und nicht nur durch Sonnenlicht-Einstrahlung mit einem relevanten UV-Anteil erhalten werden. Darüber hinaus betrifft die vorliegende Erfindung in einer zweiten Ausführungsform die lineare Kupplung von Polymerketten bzw. die Funktionalisierung von Polymeren.
摘要:
The invention relates to a method for producing zwitterionic monomers having variable charge distances m between an anionic group and a cationic group, wherein the dihalogen compounds are reacted with N,/N -alkylated amino alcohols to form zwitterionic, monohalogenated monoalcohols, which are then sulfonated by adding metal sulfite salts. The final step of the synthesis is an acid-catalyzed esterification of said zwitterionic monoalcohols with methacrylic acid or acrylic acid to form the zwitterionic monomer.
摘要:
The invention relates to a method for producing a layer composite and to a layer composite produced according to the following method steps - providing at least one layer made of a metal and/or a metal alloy and/or at least one layer made of a metal which forms a mixed crystal together with a refractory metal, - stacking the layers in an alternating manner so as to form a layer stack while forming contact surfaces, and - diffusion welding the layers in the layer stack in the absence of an oxidizing atmosphere at a temperature between 0.4 and 0.9 times the melting temperature of the metal and at a pressure with a directional component oriented orthogonally to the contact surfaces, wherein - the respective level of the pressure and/or the temperature varies during the diffusion welding process.
摘要:
The invention relates to a method and a corresponding apparatus for measuring distance and optionally speed, in particular for multiscale distance measurement. The method comprises generating a first and a second frequency comb signal (201, 202), wherein the first and second frequency comb signals (201, 202) have different line spacings; a reference measurement comprising superimposing the at least one part of the first frequency comb signal (201) and at least one part of the second frequency comb signal (202) in a reference beam path (103) and detecting the superimposition signal propagated by the reference beam path; a first measurement comprising superimposing at least one part of the second frequency comb signal (202) on the at least one part of the first frequency comb signal (201), injecting the superimposition signal into a measurement beam path (104) and detecting the superimposition signal propagated by the measurement beam path; and determining the path difference between the reference beam path (103) and the measurement beam path (104) from the detected superimposition signals.