Abstract: The invention relates to an ionic liquid, comprising the association of a cation, chosen from the following cations of formulas (I) to (III): in which: —R1 to R4 for formulas (I) and (II), and R1 to R3 for formula (III) represent, independently from one another, a hydrogen atom or an aliphatic or cyclic hydrocarbon group, under the condition that at least one of the groups R1 to R4, for formulas (I) and (II) and at least one of the groups R1 to R3 for formula (III) represents an aliphatic hydrocarbon group comprising at least two carbon atoms and at least one of the groups R1 to R4 for formulas (I) and (II) and at least one of the groups R1 to R3 for formula (III) represents a hydrogen atom; and an anion chosen from the following anions of formulas (IV) and (V): in which: —R5 is a cyclic hydrocarbon group; —n1 is an integer equal to 1, 2, 3, 4, 5 or 6; and—n2 is an integer equal to 1, 2, 3 or 4.

Abstract: An electrolyte for a lithium air battery including a deuterated compound, wherein the deuterated compound is a deuterated product of an organic compound, in which at least one hydrogen atom is substituted with a deuterium atom, wherein the organic compound has a carbon-hydrogen (C—H) bond dissociation energy of 337.2 kJ/mol or more.

Abstract: A electrode assembly includes an electrode pair having a positive electrode and a negative electrode that are arranged crosswise and each z-folded while being cross-woven together in a continuous manner. The electrode assembly includes an electrode stack in which portions of the positive electrode are stacked along a stack axis so as to alternate with portions of the negative electrode.

Abstract: A solid state thin film battery may comprise: an adhesion promotion and intermixing barrier layer on a substrate, the layer comprising an electrically insulating material having a thickness in the range of 50 nm to 5,000 nm; a metal adhesion layer on the adhesion promotion and intermixing barrier layer; a current collector layer on the metal adhesion layer; a cathode layer on the current collector layer; an electrolyte layer on the cathode layer; and an anode layer on the electrolyte layer; wherein the device layers form a stack on the thin substrate; and wherein the adhesion promotion layer prevents cracking of the stack and delamination from the thin substrate of the stack during fabrication of the stack, including annealing of the cathode at a temperature in the range of 500° C. to 800° C., and/or intermixing of the current collector and cathode layers during annealing of the cathode layer.

Abstract: A high-performance rechargeable battery using ultra-fast ion conductors. In one embodiment the rechargeable battery apparatus includes an enclosure, a first electrode operatively connected to the enclosure, a second electrode operatively connected to the enclosure, a nanomaterial in the enclosure, and a heat transfer unit.

Abstract: The present invention provides rechargeable electrochemical cells comprising a molten anode, a cathode, and a non-aqueous electrolyte salt, wherein the electrolyte salt is situated between the molten anode and the cathode during the operation of the electrochemical cell, and the molten anode comprises an aluminum material; also provided are batteries comprising a plurality of such rechargeable electrochemical cells and processes for manufacturing such rechargeable electrochemical cells.

Abstract: An energy storage system includes an energy storage device; a current cutoff unit configured to cut off current of the energy storage device; a communication connector to be connected with an external communication connector; a detection terminal provided to the communication connector; and a control unit configured to control the current cutoff unit based on a connection state of the detection terminal of the communication connector when the communication connector is connected with the external communication connector. In a method of monitoring an energy storage device mounted on a vehicle, when a communication connector including a detecting terminal is connected with an external communication connector of the vehicle, current between the energy storage device and the vehicle is cut off based on a connection state of the detection terminal.

Abstract: The present invention relates to an electrolytic solution comprising a cyclic dicarboxylic acid ester represented by the specific formula, and the secondary battery comprising the same. According to the present invention, the electrolytic solution comprising an additive which can improve a characteristics in a secondary battery and a secondary battery comprising the same can be provided.

Abstract: A non-aqueous secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution includes a non-aqueous solvent, an electrolyte salt, and one or both of a disulfonyl compound represented by a following Formula (1) and a disulfinyl compound represented by a following Formula (2), where R1 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X1 is a halogen group, where R2 is one of a hydrocarbon group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a halogenated oxygen-containing hydrocarbon group, and a group obtained by bonding two or more thereof to one another; and X2 is a halogen group.

Abstract: An exterior body of a secondary battery includes an insertion portion for insertion of a third electrode including metal lithium. An injection and expelling portion through which an electrolyte solution can be replaced is further provided. Specifically, a nonaqueous secondary battery includes a positive electrode, a negative electrode, an electrolyte solution, a separator, and an exterior body covering the positive electrode, the negative electrode, and the electrolyte solution. The exterior body includes a positive electrode terminal to which the positive electrode is electrically connected, a negative electrode terminal to which the negative electrode is electrically connected, and an insertion portion for insertion of a third electrode including metal lithium.

Abstract: A manufacturing method includes a battery assembly fabricating step in which a positive electrode, a negative electrode, and a nonaqueous electrolyte containing an overcharge additive and difluorophosphate are provided in a battery case, a first charging step and a conditioning step. In the conditioning step, discharging to a predetermined lowest SOC and charging to a predetermined highest SOC are performed at least once. The predetermined lowest SOC and the predetermined highest SOC are values enabling a volume change rate available when a lattice volume of a crystallite of the positive electrode active material at the lowest SOC is compared with a lattice volume of a crystallite at the highest SOC to become larger than 0% and equal to or smaller than 3%, and the highest SOC is a value enabling a high potential at which a conductive film derived from the overcharge additive can be formed.

Abstract: Provided is a battery system having improved safety and reliability. The battery system includes a battery module including a unit cell and a cell controller performing control of the unit cell and a battery controller performing control of the battery module; the cell controller includes an abnormality diagnosis unit which diagnoses the presence or absence of abnormality of the unit cell, a state detection unit which calculates any one or more of voltage, current, temperature, SOC, SOH, and allowable charge/discharge current of the unit cell, a power line communication unit which performs wire communication, and a wireless communication unit which performs wireless communication, the information diagnosed by the abnormality diagnosis unit is output through the power line communication unit to the battery controller; and the information calculated by the state detection unit is output through the wireless communication unit to the battery controller.

Abstract: A first cell string provided in a first battery module has a larger allowable current value than a plurality of cell strings provided in second and third battery modules. The battery module is provided with a current limiting circuit that limits the charge and discharge currents of the second cell string. When the current value detected by a current sensor is zero, the switch is turned off. In this condition, when the terminal voltage value of the third cell string is different from the terminal voltage value of the second cell string, a second switch switches the connection between the second and third battery modules in order to interpose the current limiting circuit between the second and third cell strings.

Abstract: Battery packs for high energy density batteries (cells), particularly arrays of such batteries are described herein. The battery packs include a microfibrous media (MFM)-phase change materials (PCM) composite block and one or more active cooling structures. The MFM is typically sintered to the active cooling structures. The battery packs may contain more than one MFM-PCM composite block. Additionally or alternatively, the MFM-PCM composite block may contain different layers containing different MFM-PCM composites, which have different functionalities. In a preferred embodiment, at least one layer contains a flame retardant PCM, while at least one other layer contains a PCM with a lower melting temperature. The cells may be arranged in a repeating square or equilateral triangle pattern, with one or more active cooling structures in the geometric center of the square or triangle.

Abstract: Provided are electrochemical cells that include a compound having the general formula wherein R1 is moiety associated with a lithium ion, X1 and X3 are unsubstituted methylene moieties, X2 and X4 are each independently selected from a substituted or unsubstituted methylene moiety, X is a substituted or unsubstituted C1-C10 alkylene moiety, arylene moiety or heteroarylene moiety, R2 is selected from Li, H, an alkyl moiety, or a heteroalkyl moiety, 0<m?1, 0?n?1, and m+n=1.

Abstract: A soluble catalyst for a lithium-air battery is provided. The soluble catalyst including a redox mediator (RM) has an ionization energy of about 5.5 to 7.5 eV under vacuum or an oxidation potential of 3.0 to 4.0 V and is well dissolved in an electrolyte without reacting with the electrolyte. In addition, the soluble catalyst has a HOMO level in an original state (RM), which is less than a formation energy of lithium peroxide (Li2O2) but maximally close to the formation energy, and has a HOMO level in an oxidized state (RM+), which is greater than a HOMO level of the electrolyte.

Abstract: A lithium-air battery is provided which includes a gas diffusion layer that is at least partially filled with air, having an electrically conducting material as a cathode, an at least partially electrolyte-impregnated filter having an electronically non-conducting material as a separator, and an anode having a lithium metal, a lithium-metal alloy or lithium-oxide-metal mixture. The separator is between the anode and the cathode and the electrolyte includes a hydrophobic, ionic liquid and a lithium salt. The three phases, gaseous air, liquid electrolyte and solid conducting material, are in contact on at least one point of the gas diffusion layer. A method for producing such battery and the use of such battery in a motor vehicle are also provided.

Abstract: Disclosed is a hybrid electrochemical cell with a first conductor having at least one portion that is both a first capacitor electrode and a first battery electrode. The hybrid electrochemical cell further includes a second conductor having at least one portion that is a second capacitor electrode and at least one other portion that is a second battery electrode. An electrolyte is in contact with both the first conductor and the second conductor. In some embodiments, the hybrid electrochemical cell further includes a separator between the first conductor and the second conductor to prevent physical contact between the first conductor and the second conductor, while facilitating ion transport between the first conductor and the second conductor.

Abstract: A system for generating low-power energy includes a fuel cell supplied by a gas network and a rechargeable energy storage system. An energy generation method and an energy management method implementing such an energy generation system are described.

Abstract: A coaxial tunable band stop filter utilizes tuning elements, such as PIN diodes and varactor diodes, for electrically tuning a coaxial resonator to change the resonance frequency of the coaxial resonators. A voltage is applied to the tuning elements to change their capacitance, such that they electrically lengthen and shorten the coaxial resonator. The variable voltages work to change the center frequency across a bandwidth. When the resonators are electrically extended or shortened in length, the center frequency in the bandwidth is changed accordingly. The bandwidth for the coaxial tunable band stop filter is tunable to increase and decrease based on the position of the center frequency. A ninety degree transmission line is used for coupling the components of the filter. A digital control is used for manipulating the tuning elements.

Abstract: Systems and methods for reducing communications interruptions in redundancy switching events are provided. In certain embodiments, a method for switching communication paths through a circulator network includes identifying a first failed component, wherein the first failed component is connected to a first communication path, wherein the multiple components includes standby components that are not coupled to communication paths and active components that are coupled to communication paths, wherein a standby component that has not previously failed and an active component that has not experienced a failure are operable components. Further, the method includes switching circulators in the circulator network such that a first operable component is connected to the first communication path and the failed component is disconnected from the first communication path, wherein the communication paths other than the first communication path are disrupted for less than or equal to a single switching event.

Abstract: A composite transmission line includes a laminated insulator including insulator layers, signal transmission lines including first and second signal transmission lines and a power transmission line. The power transmission line includes a power transmission conductor pattern along the insulator layers, and an interlayer connection conductor that interlayer-connects power transmission conductor patterns. The first signal conductor pattern of the first signal transmission line, the second signal conductor pattern of the second signal transmission line, and the power transmission conductor pattern are parallel or substantially parallel to each other on the insulator layers that are mutually different from each other. The first and second signal conductor patterns interpose a first ground conductor in the laminating direction of the insulator layers. The power transmission line is in a side portion of the first signal conductor pattern.

Abstract: Contactless extremely high frequency connector assemblies, passive cable connector assemblies, and active cable connector assemblies are disclosed herein. In one embodiment, a contactless connector assembly can include several (EHF) contactless communication units operable to selectively transmit and receive EHF signals, and several signal directing structures coupled to the EHF CCUs. The signal directing structures can direct the EHF signals along a plurality of EHF signal pathways.

Abstract: A spatial power combiner includes several inputs to which are respectively linked a plurality of transmission lines, and an output. A body defines a cavity and the plurality of transmission lines pass longitudinally through the cavity and are disposed around an absorbent member also extending longitudinally in the cavity. A power amplification set includes the spatial power combiner and an amplification structure at the input of the spatial power combiner.

Abstract: An electronic circuit assembly comprising: i) a circuit card assembly (CCA) having circuits integrated on a circuit surface; ii) a housing having an upper surface and a lower surface disposed on the CCA circuit surface, the housing comprising a via extending from the lower surface to the upper surface; and iii) a waveguide assembly disposed in the via. The waveguide assembly comprises: a) a first waveguide having a first dielectric value, a contact end of the first waveguide configured to make contact with the CCA circuit surface; b) a second waveguide having a second dielectric value, wherein the first dielectric value is greater than the second dielectric value; and c) a carrier for holding the first waveguide in contact with the second waveguide. The electronic circuit assembly further comprises: iv) a wave washer disposed in the via on a support surface of the carrier; and v) a third waveguide having a third dielectric value that is less than the second dielectric value.

Abstract: An antenna system having a quick release that removably and reliably connects a Remote Radio Unit (RRU) to an Integrated Antenna Unit (IAU), both mechanically and electronically. The RRU has an RRU connector and the antenna has an antenna connector that removably engages with and mates with the RRU connector. The system has a temporary hanging position that enables a user to connect additional electronic connections to the RRU before it is fully coupled with the antenna.

Abstract: An electronic device and an antenna of an electronic device are provided. The electronic device includes a metal shell, and the antenna includes: a radiating surface formed by metal shell and having a slot group penetrated therethrough in an up and down direction of the metal shell, the slot group including a plurality of slots; a medium filling layer including a body part disposed on a lower surface of the metal shell and a plurality of filling parts disposed on an upper surface of the body part and filled in the plurality of slots respectively; and an excitation sheet disposed on a lower surface of the medium filling layer.

Abstract: According to one embodiment, a data communication device includes a housing and an antenna. The housing includes a base formed of a carbon material and circumferential edges continuous with edges of the base and formed of a resin material. The antenna is accommodated in the housing and includes a conductive portion grounded via the base and an element portion arranged further away from the base than the conductive portion.

Abstract: An integrated structure of a metal housing and an antenna of an electronic apparatus, where the electronic apparatus includes the metal housing and an antenna structure, the antenna structure includes an antenna main body, at least one micro gap set is disposed on the metal housing, the at least one micro gap set includes micro gaps, the at least one micro gap set divides the metal housing to form at least one metal region, and the at least one metal region is connected to the antenna main body to serve as a radiating body of the antenna structure.

Abstract: A metal housing of an electronic communication device includes: a metal frame, and a plurality of micro holes. At least some of the plurality of micro holes penetrate the metal frame, with the plurality of micro holes being arranged into at least two rows to form a strip.

Abstract: An individually formed radiating unit, an antenna array, and an antenna assembly are provided. The individually formed radiating unit includes a reflector, at least one radiating element integrated into a first side of the reflector, and a housing disposed on a second side of the reflector.

Abstract: Embodiments include an antenna assembly for a wireless microphone, comprising a helical antenna including a feed point and at least one contact pin coupling the feed point to the wireless microphone. The helical antenna is configured for operation in first and second frequency bands. Embodiments also include a wireless microphone comprising a main body having top and bottom ends and an antenna assembly coupled to the bottom end. The antenna assembly comprises a helical antenna configured to transmit and receive wireless signals, an inner core configured to support the helical antenna on an outer surface of the inner core, and an outer shell formed over the inner core and the helical antenna. Embodiments further include a method of manufacturing an antenna assembly for a wireless microphone using a first manufacturing process to form a core unit of the antenna assembly and a second manufacturing process to form an overmold.

Abstract: An aviation transponder system comprising a permanently-mounted antenna, a permanently-mounted receiver module comprising a receiver, a signal splitter, and an external connector, and a portable receiver module, wherein a signal received on the permanently-mounted antenna is passed to the signal splitter of the permanently-mounted receiver module, wherein the signal splitter splits the signal such that the signal is sent to both the receiver and to the external connector, and wherein the portable receiver module is connected to the external connector, whereby the permanently-mounted antenna is used by the receiver of the permanently-mounted receiver module and fed through the permanently-mounted receiver module and made available to the portable receiver module through the external connector.

Abstract: An antenna apparatus includes a substrate formed of a dielectric material; a pattern unit disposed on one surface of the substrate and radiating energy of electromagnetic wave; and a patch unit disposed on the substrate to be spaced apart from one side of the pattern unit with a first distance and configured to limit radiation of an energy radiated from the one side of the pattern unit.

Abstract: An antenna for motor vehicles is provided having a base member, an antenna device, a radome, and a device for attaching the base member to a vehicle roof inside surface with the antenna device projecting outwards of the vehicle from within through an opening formed in the vehicle. The radome cooperates with the attaching device and the surroundings of the vehicle opening so as to enclose the antenna device in an assembled condition.

Abstract: A helix antenna device includes a board, a signal output circuit on the board, a column body, a ground wire, a helix antenna, and an annular metal member. The column body includes a passage and a helix trough. A bottom surface of the column body is fastened to the board. The passage is formed along a central axis of the column body. The helix trough is around an annular side surface of the column body. The ground wire passes into the passage. The ground wire is fastened to the board and is connected to the signal output circuit. The helix antenna is around the column body. A part of the helix antenna is disposed in the helix trough. The helix antenna is fastened to the board and is electrically connected to the signal output circuit. The annular metal member is disposed on the board and surrounds the column body.

Abstract: A coil-type antenna device includes a plate-like magnetic member; a coil formed by winding a conductor wire around a plate-like magnetic member; and a fixing structure configured to fix the conductor wire to the magnetic member.

Abstract: Electronic devices are provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry and antenna structures. The antenna structures may include antennas such as inverted-F antennas that contain antenna resonating elements and antenna ground elements. Antenna resonating elements may be formed from patterned conductive traces on substrates such as flex circuit substrates. Antenna ground elements may be formed from conductive device structures such as metal housing walls. Support and biasing structures such as dielectric support members and layer of foam may be used to support and bias antenna resonating elements against planar device structures. The planar device structures against which the antenna resonating elements are biased may be planar dielectric members such as transparent layers of display cover glass or other planar structures.

Abstract: An antenna bracket for electronic devices includes a solid bracket having an aperture formed therethrough. The solid antenna bracket has side walls that are rounded to a predetermined radius, and at least one antenna pocket positioned on said side walls. The antenna pocket receives and secures at least one antenna. The antenna bracket has a polygon shape that follows the contours of the electronic device housing.

Abstract: An antenna alignment device includes a handheld enclosure comprising a high-precision GPS receiver, high-precision GPS antennas spaced apart along an enclosure heading, a display, a camera having a central axis aligned with the heading, and a user interface. A circuit board connects these components and has a processor programmed to determine an azimuth of the heading with the receiver and antennas based upon received GPS signals, to show a view of the camera on the display, to depict crosshairs at a display centerpoint superimposed on the view, to receive a target coordinate from a user through the user interface, to calculate a distance between the target coordinate and the heading and, if the distance is short enough to be contained within the view, to superimpose a bullseye upon the display at the target coordinate, and to dynamically move the bullseye on the display as the user moves the enclosure.

Abstract: Disclosed herein is an antenna apparatus which allows adjusting a directional pattern to a desired direction through a simple switching without employing a complicated feed structure of an array antenna and a vehicle having the same. The antenna apparatus includes a power feed unit, a waveguide through which a radio signal provided from the power feed unit propagates, a plurality of antenna elements including radiation slots from which the radio signal propagating though the waveguide is radiated and configured to be shifted by a predetermined angle and stacked, and a switching unit configured to switch at least one of the power feed units included in the plurality of antenna elements in order to select at least one of the plurality of antenna elements.

Abstract: Embodiments of the present application provide an antenna control method, an antenna control apparatus, and an antenna device. The antenna control method comprises: determining a target pattern of multiple antennas according to at least a target antenna feature, wherein each antenna of the multiple antennas is at least partially fixed on a flexible substrate; and controlling, according to at least the target pattern and an actual pattern of the multiple antennas, the flexible substrate to be deformed. The embodiments of the present application provide a solution to control an antenna pattern.

Abstract: Embodiments include methods for calibrating sensors of one or more sensor arrays. Aspects include accessing one or more beamforming matrices respectively associated to the one or more sensor arrays. Source intensity estimates are obtained for a set of points in a region of interest, based on measurement values as obtained after beamforming signals from the one or more sensor arrays based on the one or more beamforming matrices, assuming fixed amplitude and phase of gains of sensors of the one or more sensor arrays. Estimates of amplitude and phase of the sensor gains are obtained based on: measurement values as obtained before beamforming; and the previously obtained source intensity estimates. The obtained estimates of amplitude and phase can be used for calibrating said sensors.

Abstract: A radar antenna system comprises a plurality of transmitting sub-arrays; a plurality of receiving sub-arrays; and a transceiving control unit coupled to the plurality of transmitting sub-arrays and the plurality of receiving sub-arrays, configured to control the plurality of transmitting sub-arrays and the plurality of receiving sub-arrays, such that the radar antenna system selectively operates in one of an amplitude-comparison mono-pulse mode and a phase-comparison mono-pulse mode.

Abstract: A method and apparatus for phase-mode feeding a circular antenna array for beamsteering is provided. A Butler Matrix having M antenna-side ports and M input/output ports is coupled to beamsteering circuitry. The coupled input/output ports may include a port corresponding to a phase-mode having an order magnitude greater than one. The coupled input/output ports may include ports of three different order magnitudes of phase-mode. The Butler Matrix is coupled to M inner ports of a radial waveguide, and the antenna elements are coupled to N outer ports of the waveguide, where N>M. Where M=4, the input/output ports correspond to a zeroth order phase-mode, plus and minus 1st order phase-modes, and a second order phase-mode. The zeroth order phase-mode may be used for beamsteering closer to the radial axis of the antenna array while the second order phase-mode may be used for beamsteering further from the radial axis.

Abstract: Various methods and systems for (i) combining the capabilities of beam-forming networks together with the benefit of using maximal-ratio-combining techniques, and (ii) selecting receiving directions for wireless data packets in conjunction with beam-forming networks.

Abstract: An eight-frequency band antenna includes a carrier, a high-frequency segment, a low-frequency segment, a printed circuit board (PCB) and an inductor. The high-frequency segment is arranged on left side of the carrier and the low-frequency segment is arranged on right side of the carrier. The radiator on the bottom face of the carrier electrically connects with the micro strip of the PCB and the ground line of the ground metal when the carrier is fixed to the PCB. Moreover, the low-frequency segment is corresponding to a metal face with smaller area such that the low-frequency segment is at a free space to enhance the frequency response of the low-frequency segment and the bandwidth of the high-frequency segment. The area and the volume of blind hole on the carrier can adjust the effective dielectric constant to adjust the resonant frequency and bandwidth of the antenna.

Abstract: An antenna device includes a rectangular conductor pattern that is disposed substantially in parallel to a ground plate at a predetermined distance, a short-circuit portion that electrically connects the conductor pattern to the ground plate, a first feeding point for transmitting and receiving a signal of a first frequency, and a second feeding point for transmitting and receiving a signal of a second frequency. An electric length of one side of the conductor pattern is set to half a wavelength of the second frequency. The short-circuit portion is disposed in the center portion of the conductor pattern, and an area of the conductor pattern forms a capacitance that resonates in parallel with an inductance provided in the short-circuit portion at the first frequency.

Abstract: A ten-frequency band antenna includes a carrier, a high-frequency segment, a low-frequency segment, a printed circuit board (PCB) and an inductor. The high-frequency segment is arranged on left side of the carrier and the low-frequency segment is arranged on right side of the carrier. The radiator on the bottom face of the carrier electrically connects with the micro strip of the PCB and the ground line of the ground metal when the carrier is fixed to the PCB. The low-frequency segment is located at an opened area and corresponding to a metal face with smaller area such that the low-frequency segment is at a free space to enhance the frequency response of the low-frequency segment and the bandwidth of the high-frequency segment. The area and the volume of blind hole on the carrier can adjust the effective dielectric constant to adjust the resonant frequency and bandwidth of the antenna.

Abstract: A communication device including a ground element and an antenna element is provided. The antenna element is disposed adjacent to an edge of the ground element, and a loop structure is formed by the antenna element and the edge of the ground element. The antenna element includes a first and a second metal portions, and a first and second switches. When the first switch is turned on and the second switch is turned off, the first metal portion, the second metal portion, a shorting metal portion and the first switch form a loop antenna with the ground element. When the second switch is turned on and the first switch is turned off, an inverted-F antenna is formed by the second metal portion.