Abstract: A solvent-free solid electrolyte is provided for an alkali metal solid state battery including an alkali metal conducting salt and a semi-interpenetrating network (sIPN) of a crosslinked and a non-crosslinked polymer. The semi-interpenetrating network is selected from a non-crosslinked polymer selected from the group consisting of polyethylene oxide (PEO), polycarbonate (PC), polycaprolactone (PCL), chain end modified derivatives of these polymers or mixtures of at least two components thereof, and the crosslinked polymer comprises polyethylene glycol dimethacrylate (PEGdMA). Furthermore, to a process is provided for preparing a solid electrolyte and to an alkali metal battery including the solid electrolyte.

Abstract: A solid electrolyte for an alkali metal solid state battery, the solid electrolyte comprising a mixture of two different alkali metal conducting salts and a semi-interpenetrating network (sIPN) of a crosslinked and a non-crosslinked polymer, wherein the semi-interpenetrating network is greater than or equal to 50 wt.-% and less than or equal to 80 wt.-% of a non-crosslinked polymer selected from the group consisting of polyethylene oxide (PEO), polycarbonate (PC), polycaprolactone (PCL), chain end modified derivatives of these polymers or mixtures of at least two components thereof; and greater than or equal to 10 wt.-% and less than or equal to 50 wt.-% of a polycarbonate of crosslinkable polyalkyl carbonate monomers having a carbon number greater than or equal to 2 and less than or equal to 15 based on the single monomer as the crosslinked polymer.

Abstract: A measuring arrangement for secondary alkaline solid electrolyte batteries comprising—two electrically non-conductive cell body halves, both cell body halves comprising at least one and one cell body half comprising at least three feedthroughs, both cell body halves forming a receiving space for receiving a solid electrolyte battery cell comprising at least an anode, a cathode and a solid electrolyte. An electrically conductive holding element for each feedthrough; an electrical contact element for each support element, the electrical contact element being adapted to change its length in response to the force applied to the element; and two planar current conductors comprising electrically conductive and electrically non-conductive regions, at least one of the current conductors being adapted to form at least three separate electrically conductive connections between the contact elements and an electrode of the solid electrolyte battery cell.

Abstract: The disclosure relates to an electrolyte for an energy store comprising a conducting salt and a solvent. The solvent comprises at least one compound according to the general formula (1), as indicated in the following: wherein R1, R2, R3, R4 are, identically or independently of each other, selected from the group comprising linear or branched C1-6-alkyl, C2-6-alkenyl C3-6-cycloalkyl and/or phenyl, each unsubstituted or mono- or polysubstituted by a substituent selected from the group comprising F, CN and/or C1-2-alkyl, mono- or polysubstituted with fluorine.

Abstract: An electrolyte for a lithium-ion battery which includes lithium hexafluorophosphate and lithium 2-pentafluoroethoxy-1,1,2,2-tetrafluoroethanesulfonate. A lithium-ion battery which includes an electrolyte containing lithium hexafluorophosphate and lithium 2-pentafluoroethoxy-1,1,2,2-tetrafluoroethanesulfonate. A motor vehicle which uses a lithium-ion battery having electrolytes containing lithium hexafluorophosphate and lithium 2-pentafluoroethoxy-1,1,2,2-tetrafluoroethanesulfonate. The electrolyte can increase the service life of the lithium-ion battery.

Abstract: An alkali metal-based energy storage system, having at least one composite electrode containing an active material, and an electrolyte containing a lithium salt dissolved in an aprotic organic solvent, an ionic fluid and/or a polymer matrix. The electrolyte further contains an additive selected from a cation or a compound of a metal selected from Mg, Al, Cu and/or Cr. The metal selected from Mg, Al, Cu and/or Cr is applied onto the active material and/or the active material of the composite electrode is partially replaced by the metal selected from Mg, Al, Cu and/or Cr in the form of a metal powder or a metal salt.

Abstract: The present invention provides a compound with a general formula (I) or a salt thereof, wherein, R1 and R2, are, independently of each other, F or CnF2n+1 with n=1-10, and R3 and R4 are, independently of each other, C1-C10-alkyl.

Abstract: An electrolyte for a lithium-ion battery which includes lithium hexafluorophosphate and lithium 2-pentafluoroethoxy-1,1,2,2-tetrafluoroethanesulfonate. A lithium-ion battery which includes an electrolyte containing lithium hexafluorophosphate and lithium 2-pentafluoroethoxy-1,1,2,2-tetrafluoroethanesulfonate. A motor vehicle which uses a lithium-ion battery having electrolytes containing lithium hexafluorophosphate and lithium 2-pentafluoroethoxy-1,1,2,2-tetrafluoroethanesulfonate. The electrolyte can increase the service life of the lithium-ion battery.

Abstract: An alkali metal-based energy storage system, having at least one composite electrode containing an active material, and an electrolyte containing a lithium salt dissolved in an aprotic organic solvent, an ionic fluid and/or a polymer matrix. The electrolyte further contains an additive selected from a cation or a compound of a metal selected from Mg, Al, Cu and/or Cr. The metal selected from Mg, Al, Cu and/or Cr is applied onto the active material and/or the active material of the composite electrode is partially replaced by the metal selected from Mg, Al, Cu and/or Cr in the form of a metal powder or a metal salt.

Abstract: The present invention provides a compound with a general formula (I) or a salt thereof, wherein, R1 and R2, are, independently of each other, F or CnF2n+1 with n=1-10, and R3 and R4 are, independently of each other, C1-C10-alkyl.