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: An electrolyte includes at least one lithium salt, at least one first organic solvent having a dielectric constant of >90 at 40° C., at least one second organic solvent having a boiling point of <110° C., and at least one phosphite having the formula (I) R1 is selected from an n-propoxy group, an iso-propoxy group, a tert-butoxy group, an n-pentafluoropropoxy group, an n-trifluoropropoxy group, an iso-hexafluoropropoxy group, or a tert-nonafluorobutoxy group. R2, R3, R4, and R5 are each selected, independently of one another, from H, a trifluoromethyl group, or a C2-C6-alkyl group which is substituted with a trifluoromethyl group.

Abstract: A system for transferring waste heat from a range extender module of an electric vehicle to a cabin module includes a cooling circuit in the range extender module and a heating circuit of the cabin module. The cooling circuit is thermally coupled to the heating circuit. The cooling circuit includes a thermal coupler and the heating circuit includes a corresponding thermal coupler. The thermal coupler of the cabin module heating circuit may be disposed at the rear of the cabin module, and the thermal coupler for the cooling circuit of the range extender module may be disposed at the front of the range extender module. The thermal coupler of the range extender module may be longitudinally adjustable.

Abstract: A method and system for characterizing a state of health of a winding of an electric machine are provided. The winding may include one or more stator windings in an electric machine, for example, a permanent magnet synchronous machine (PMSM). The method comprises: applying a voltage pulse to the winding; measuring a phase current signal of a current supplied to the winding; determining a high-frequency transient current based on the phase current signal. The state of health of the winding may be calculated as a function of change in frequency spectrum of the high-frequency transient current. The method may include calculating a plurality of packets using a wavelet packet decomposition of the high-frequency transient current; and determining one or both of: the state of health or a classification of degradation, using an indicator based upon at least one packet of the plurality of packets.

Abstract: The present invention relates to a process for the sequential and convergent preparation of ordered block copolymers comprising at least one non-polar and one polar polymer block, wherein the non-polar block is built up from specific monomers via a living sequential anionic polymerization by means of a Li-organyl initiator having a pKa greater than or equal to 45 and the polar block is a polymer block having a molecular weight greater than or equal to 350 g/mol and less than or equal to 5000 g/mol and being built up from monomers selected from the group consisting of C2-C10 oxacyclo compounds, their derivatives or mixtures of at least two different monomers thereof, wherein the polar polymer block is covalently linked to the non-polar block anion in a single step via an epoxy functionalization of one of the monomers of the polar block, obtained via a reaction of this monomer with epichlorohydrin, in a non-polar solvent in the presence of free Li ions.

Abstract: The present invention provides an electrode material and production method thereof. The electrode material comprises: an electrode active material; and an elastic layer coated on the electrode active material, wherein the elastic layer comprises the elements of C, H, O, N, S and the electrode material has the characteristic peaks at mass-to-charge ratio (m/z) 261±0.5, (m/z) 155±0.5, (m/z) 80±0.5, (m/z) 32±0.5, and (m/z) 14±0.5 using TOF-SIMS with the primary ion of Bi1+.

Abstract: A cooling jacket for an electric motor comprises a fluid passage disposed adjacent to a stator and configured to convey a cooling fluid. The cooling jacket includes a flow mixing enhancer within the fluid passage adjacent an axial end of the stator. The flow mixing enhancer includes baffles, a porous fibrous structure, and/or an open-cell foam to provide greater thermal conductance at a region adjacent to the axial ends than it provides to a central region therebetween. A flow bridge directs the cooling fluid through circumferential flow paths adjacent to both of the axial ends before the cooling fluid is circulated in a central flow path around the central region of the stator. One or more nozzles direct a jet of cooling fluid upon the stator end winding, a rotor end winding, and/or printed circuit board. A ring-shaped coolant header may supply the cooling fluid to the nozzles.

Abstract: A switching circuit of a motor drive includes a high-side switch configured to selectively conduct current between a DC positive conductor and an output conductor, and a low-side switch configured to selectively conduct current between the output conductor and a DC negative conductor. The high-side switch comprises a depletion mode (D-Mode) gallium nitride (GaN) high-electron-mobility transistor (HEMT) and a Si-FET in a cascaded configuration, and the low-side switch comprises a D-Mode GaN HEMT. This arrangement can provide a safe state operation in which the switching circuit provides a default condition providing electrical continuity between the DC negative conductor and the output conductor and providing electrical isolation between the DC positive conductor and the output conductor in the event of a loss of control signals.

Abstract: An imidazolidinylide compound for use as a shut-down additive for a lithium-ion battery. The imidazolidinylide compound has a formula (I), wherein, R1 to R4, each independently the other, is a linear C1- to C16-alkyl group, a branched C1- to C16-alkyl group, a C2- to C16-alkenyl group, a C3- to C8-cycloalkyl group, or a C3- to C16-arene group, wherein at least one of R2 and R3 may also be H, R1 to R4, each independently of the other, is completely, partially or not fluorinated, and R1 to R3 may each also contain O as a heteroatom.

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: A system for transferring waste heat from a range extender module of an electric vehicle to a cabin module includes a cooling circuit in the range extender module and a heating circuit of the cabin module. The cooling circuit is thermally coupled to the heating circuit. The cooling circuit includes a thermal coupler and the heating circuit includes a corresponding thermal coupler. The thermal coupler of the cabin module heating circuit may be disposed at the rear of the cabin module, and the thermal coupler for the cooling circuit of the range extender module may be disposed at the front of the range extender module. The thermal coupler of the range extender module may be longitudinally adjustable.

Abstract: A system and a method for exchanging data between a server and a client in an industrial data network, wherein the server employs a first information model for information interchange and the client employs a second information model for information interchange, where the method includes converting the first and the second information models in a first and a second machine-interpretable description, deducing similarities between elements of the first and the second machine-interpretable description, proposing and implementing a mapping of at least one element of the first information model to an element of the second information model based on the deduced similarities in text and in structure and, employing, by a gateway entity, the mapping for a data exchange between the server and the client such that the semantic mapping of virtually any input, vendor-specific metadata, and any output model (including OPC UA-based models) is achieved.

Abstract: The invention relates to a method of producing a multilayer filter medium, comprising at least the production steps listed below: providing a woven fabric layer (12) having passage points (24) for fluid; providing a nonwoven layer consisting of a spunbonded nonwoven (18) and having additional passage points (28) for fluid; and joining the two superimposed layers (12, 18) along contact points (30) by melting the nonwoven layer (18) in such a way that while the additional passage points (28) enlarge, the molten spunbonded nonwoven material flows at least in part to the contact points (30) and then cumulatively curs there to produce firm connection points between the two layers (12,18).

Abstract: A system for making an autonomous connection between a first electrical contact and a second electrical contact includes a first receiver with the first contact therein and a second receiver with a second contact therein. The receivers are at least partially disposed within respective first and second housings. A first cover is disposed over an opening of the first housing and a second cover is disposed over an opening of the second housing. The covers seal the ends of the housings and the ends of the receivers, providing a double seal to the contacts. As the receivers are moved toward each other, the covers are automatically moved out of engagement with the receivers and housing. As the receivers are moved away from each other, the covers are automatically moved back into engagement with the housings and receivers.

Abstract: A lithium battery including an anode having an active anode material, a cathode having an active cathode material. The cathode material includes lithium nickel cobalt manganese cobalt oxide (NCM). An electrolyte separates the anode and cathode. The electrolyte includes a solvent or solvent mixture and lithium hexafluorophosphate, and a germanium organyl-based electrolyte additive. Also disclosed are uses of the germanium organyl-based electrolyte additive in the lithium battery for enhancing one characteristic selected from the group consisting of reversible capacity, Coulombic efficiency, cyclic stability and combinations thereof.

Abstract: A lithium battery including an anode having an active anode material, a cathode having an active cathode material including lithium nickel cobalt manganese oxide (NCM), and an electrolyte separating anode and cathode. The electrolyte includes a solvent or solvent mixture and lithium hexafluorophosphate. The electrolyte further includes a urea-based electrolyte additive. Use of the urea-based electrolyte additive additive in the lithium battery is also disclosed for enhancing one characteristic selected from the group consisting of reversible capacity, Coulombic efficiency, cyclic stability, and combinations thereof.

Abstract: A solvent-free polymer electrolyte having a polymer matrix which is conductive for lithium ions and a lithium salt, wherein the polymer matrix has at least one pseudo-polyrotaxane which includes at least one linear polymer and at least one ring-shaped molecule, and wherein the lithium salt is arranged in the polymer matrix and is at least partially chemically bonded to the polymer matrix, wherein the polymer matrix includes at least one pseudo-polyrotaxane with at least one completely or partially chemically modified cyclodextrin or at least one completely or partially chemically modified crown ether, in which the present hydroxyl groups of the cyclodextrin, or the scaffold of the crown ether, are/is partly or completely modified by functional groups, wherein the functional groups comprise alkyl, aryl, alkenyl, alkynyl groups (Cn, with n?5), or other short-chain polymer groups having up to 20 repeating units.

Abstract: The invention relates to an electrolyte arrangement for a cell having at least one anode (1) and at least one cathode (3) comprising at least three superposed layers (2.1, 2.2, 2.3), wherein the middle layer (2.2) comprises a porous electrically nonconductive structure, and wherein a layer of a polymer-based electrolyte (2.1, 2.3) is arranged on both opposite sides of the porous electrically nonconductive structure, wherein at least one of the superposed layers (2.1, 2.2, 2.3) contains a ceramic material, wherein the ceramic material of the middle layer (2.2) is selected from metal ion-conductive ceramic material, a ceramic material which does not conduct metal ions, and/or mixtures thereof, and the ceramic material of the polymer-based electrolyte layer(s) (2.1, 2.3) is a metal ion-conductive ceramic material.

Abstract: A method for communicating between an electric vehicle and a charging station for electrically charging at least one energy storage device of the electric vehicle. The electric vehicle is connected to the charging station during the charging process by a lockable mechanical coupling between a terminal of charging cable connected to the vehicle and a terminal of the charging station. Charging current is fed from the charging station through the charging cable. Information is transferred in the course of the charging process based on a communication between the electric vehicle and the charging station. The information includes a signal transmitted from the electric vehicle to the charging station for locking and/or unlocking the mechanical coupling. The signal triggers the locking and/or unlocking of the mechanical coupling between the terminal of the charging cable and the terminal at the charging station.