Abstract: A battery modules includes a battery cell stack, in which a plurality of battery cells are stacked, a frame accommodating the battery cell stack, end plates covering front and rear surfaces of the battery cell stack, and busbar frames formed between the end plates and the battery cell stack, and a plurality of slots are formed in each of the busbar frames and a venting portion is formed at the center of each of the end plates, and the plurality of battery cells pass through the plurality of slots and are connected to the outside through a first passage part connected to the venting portion.

Abstract: A battery module has a reduced risk of secondary fire or explosion. The battery module includes at least two cell assemblies including a plurality of secondary batteries, a module housing having a gas passage on at least one of left side or right side of the cell assembly for circulation of gas generated from the cell assembly, and a flame retardant plate including a body interposed between the at least two cell assemblies, and a flame barrier extending in a left-right direction from at least one of left end or right end of the body and disposed in part of the gas passage.

Abstract: Provided is a method of manufacturing a secondary battery separator including dissolving a polymer binder in water to prepare an aqueous binder solution, dispersing particles in the aqueous binder solution to prepare an aqueous slurry, and preparing a separator substrate, and applying the aqueous slurry on an upper surface and a lower surface of the separator substrate to form an aqueous slurry coating layer, wherein the separator substrate includes a hydrophobic material, the polymer binder is water-soluble, and the aqueous slurry has a viscosity of about 100 cP to about 6000 cP.

Abstract: The present disclosure relates to an electrolyte membrane for an alkali metal or an alkali metal ion battery, comprising: a composite membrane comprising an ionically conductive polymer; an alkali metal salt; and a filler comprising a carbon nitride nanosheet, an oxygenated carbon nitride nanosheet or a combination thereof.

Abstract: Described herein, are battery separators, comprising the following: a microporous polymeric film; and an optional coating layer on at least one side of the microporous polymeric film, wherein at least one of the microporous polymeric film and the optional coating comprises an additive. The additive is selected from the group consisting of a lubricating agent, a plasticizing agent, a nucleating agent, a shrinkage reducing agent, a surfactant, an SEI improving agent, a cathode protection agent, a flame retardant additive, LiPF6 salt stabilizer, an overcharge protector, an aluminum corrosion inhibitor, a lithium deposition agent or improver, or a solvation enhancer, an aluminum corrosion inhibitor, a wetting agent, and a viscosity improver. Also, described herein are batteries, including lithium-ion batteries, comprising one or more of the described separators. Methods for making the battery separators are also described.

Abstract: The present application relates to a composite separator, and an electrochemical device and an electronic device comprising the same. Some embodiments of the present application provide a composite separator, comprising: a first porous substrate and a cation exchange layer, wherein the cation exchange layer comprises a second porous substrate grafted with a functional group, wherein the functional group is selected from the group consisting of an alkali-metal-sulfonic functional group, an alkali-metal-phosphoric functional group and a combination thereof. The composite separator of the present application can effectively capture the transition metal ions eluted from a cathode through the cation exchange layer, thereby reducing the deposition of the transition metal ions on an anode and the self-discharge rate of the electrochemical device.

Abstract: Battery separators and methods are disclosed. The battery separator may be used in a lithium battery. The separator may include a microporous membrane laminated to a coated nonwoven. The coating may contain a polymer and optionally, a filler or particles. The methods may include the steps of: unwinding the microporous membrane and the nonwoven, laminating the nonwoven and microporous membrane, and coating the nonwoven before or after lamination.

Abstract: An electrochemical device includes a cathode, an anode, a separator and a binding layer. The separator is disposed between the cathode and the anode, and at least one binding layer is included between the cathode and the anode. The binding layer includes a high molecular polymer. A dielectric constant of the high molecular polymer is 5 F/m to 50 F/m. By optimizing the dielectric constant of the high molecular polymer in the binding layer of the electrochemical device, a binding force of the binding layer can be effectively increased, deformation of the anode or the cathode due to volume swelling during charge and discharge cycles is reduced, and peeling from the separator is avoided.

Abstract: A secondary battery includes: an electrode assembly including a negative electrode plate, a positive electrode plate, and a separator between the negative electrode plate and the positive electrode plate; and a case accommodating the electrode assembly. The electrode assembly includes an adhesive part on an outermost region of the electrode assembly. The adhesive part is arranged to cover a boundary line between the negative electrode plate and the separator or between the positive electrode plate and the separator, and is bonded to the case.

Abstract: An electrical connecting plate, a battery module, a battery pack, and a device are discoursed, which relate to the technical field of energy storage devices. The electrical connecting plate includes a first part and a second part. The first part includes a current-increasing portion and a body portion containing an avoidance region. The current-increasing portion is located in a specified region around the avoidance region. The current-increasing portion is connected to a side of the body portion in a thickness direction of the electrical connecting plate. The second part is connected to ends of the body portion and is configured to connect to a battery cell. The battery module includes a plurality of battery cells and the electrical connecting plate. The second part of the electrical connecting plate electrically connects electrode leads of a plurality of battery cells.

Abstract: The present application relates to a battery module and a method and equipment for manufacturing the same, a battery pack, and an apparatus. The battery module includes Type 1 battery cells and Type 2 battery cells connected in series; the Type 1 battery cells and the Type 2 battery cells satisfy the following criteria: 1.01×C1/C2?N2?1.25, and C1<C2, where N2 is a battery charge balance rate of the Type 2 battery cells; C1 and C2 are respectively capacities of the Type 1 battery cells and the Type 2 battery cells. By a reasonable combination of chemical systems of battery cells with different capacities, the battery module of the present application can have good safety and stability while achieving the battery cells with different capacities each having high energy output characteristics during charging and discharging, thereby increasing the energy density of the battery module.

Abstract: A battery pack including battery cells; a circuit unit connected to the battery cells; and a flexible wiring connecting the battery cells and the circuit unit to each other, wherein the flexible wiring includes a first end portion to which a plurality of conductive lines are physically bound; and a first group of conductive lines and a second group of conductive lines which extend from the first end portion, branch off from each other, and then extend in parallel to each other, and the first group of conductive lines includes a folded portion at a branching position at which the first group of conductive lines is separated from the second group of conductive lines.

Abstract: The present application discloses a secondary battery, a battery module, and a device using the secondary battery as a power source. The secondary battery includes: a casing; an electrode assembly disposed in the casing; a cap assembly; and a current collecting member including an adapting piece and a connecting component provided separately and connected with each other; the adapting piece connected with the electrode terminal of the cap assembly and including a guiding section; the connecting component including a current collecting section to be connected with the guiding section and a tab connecting section to be connected with the electrode assembly; and the connecting component has a rigidity less than that of the guiding section, so that deformation of the guiding section toward the electrode assembly can be reduced when a portion of the connecting component connected with the electrode assembly is bent with respect to the length direction.

Abstract: The battery pack includes a battery pack housing operably connectable to a power tool, at least two pouch-type battery cells disposed in the battery pack housing, the at least two pouch-type battery cells including a first battery cell and a second battery cell, each of the at least two pouch-type battery cells having a first tab and a second tab, and battery pack terminals electrically connectable to power tool terminals of the power tool and electrically connected to the at least two pouch-type battery cells. A first battery pack power terminal of the battery pack terminals is aligned with a first tab of the first pouch-type battery cell and a first tab of the second pouch-type battery cell. A second battery pack power terminal of battery pack terminals is aligned with a second tab of the first pouch-type battery cell and a second tab of the second pouch-type battery cell.

Abstract: A welding step involves solid-state welding together an external terminal and a seat portion of an internal terminal by causing the external terminal or the internal terminal to vibrate while detaching an insulator from the external terminal in at least a region surrounding the seat portion and pressing the external terminal against the seat portion.

Abstract: A secondary battery. The secondary battery includes an electrode assembly, a housing, a top cover assembly, a current collecting member, and an insulation member. The electrode assembly is accommodated in the housing and includes a body portion and a first tab. The first tab extends from one end of the body portion in a transverse direction. The top cover assembly includes a top cover plate and a first electrode terminal disposed on the top cover plate. The top cover plate is connected to the housing, and the first electrode terminal is connected to the current collecting member. The insulation member is disposed between the body portion and the current collecting member. The insulation member includes a through gap. The first tab passes.

Abstract: This application discloses a soft-pack battery module, including at least two battery stack layers stacked in a thickness direction of battery cells, where each battery stack layer includes a battery cell and a connecting piece connected to a tab of the battery cell, the connecting piece includes a first split body and a second split body, the first split body is connected to the tab, the second split body is connected to the first split body, the second split body is arranged by a side of the first split body, the second split body extends toward a large surface of the battery cell and covers at least a part of the large surface of the battery cell, and an insulating material is provided on a side of the second split body away from the large surface of the battery cell.

Abstract: Secondary batteries and methods of manufacture thereof are provided. A secondary battery can comprise an offset between electrode and counter-electrode layers in a unit cell. Secondary batteries can be prepared by removing a population of negative electrode subunits from a negative electrode sheet, the negative electrode sheet comprising a negative electrode sheet edge margin and at least one negative electrode sheet weakened region that is internal to the negative electrode sheet edge margin, removing a population of separator layer subunits from a separator sheet, and removing a population of positive electrode subunits from a positive electrode sheet, the positive electrode sheet comprising a positive electrode edge margin and at least one positive electrode sheet weakened region that is internal to the positive electrode sheet edge margin, and stacking members of the negative electrode subunit population, the separator layer subunit population and the positive electrode subunit population.

Abstract: A secondary battery module showing excellent packing efficiency which makes it possible to connect a secondary battery and a charge/discharge device with a stably low resistance without any unnecessary deformation of the secondary battery or an electrode terminal is disclosed. The secondary battery module includes a plurality of stack units, each of the stack units including: at least one non-conductive plate member; at least one conductive member fixed to the plate member; a secondary battery stacked on the plate member; and at least one electrode terminal sticking out of a side face of the secondary battery, and held by the conductive member.

Abstract: A battery pack is provided. The battery pack includes a battery cell, an input/output terminal electrically connected to the battery cell, the input/output terminal including an upper end portion and a lower end portion in a first direction, and a charge/discharge current of the battery cell being input and output through the input/output terminal, a connector electrically coupled to the input/output terminal, the connector including a fastening portion coupled to the input/output terminal at a fastened height between the upper end portion and the lower end portion of the input/output terminal, and a slider which is slidable in a second direction crossing the first direction, between a first position, at which the slider covers the fastening portion, and a second position, at which the slider exposes the fastening portion, and a fastening member electrically coupling the input/output terminal and the connector to each other.

Abstract: A sealed battery, which is an exemplary embodiment, comprises a battery case including a bottomed cylindrical outer can and a sealing body that closes an opening of the outer can, a gasket disposed between the outer can and the sealing body, and an electrode body including an electrode and housed in the battery case. The sealing body includes a metal plate, and the metal plate has a thin portion formed in an annular shape, a valve portion having a convex shape inside the battery case, and an annular portion to which the electrode lead is connected. The gasket is provided with an elastically deformable portion that abuts against the inner surface of the valve portion and urges the valve portion to the outside of the battery case.

Abstract: A power storage device includes a power storage module, a pair of current collector plates configured to be stacked to interpose the power storage module in a first direction that is vertical, a pair of insulating plates configured to be stacked to interpose the power storage module and the pair of current collector plates in the first direction; and a pair of restraint plates configured to be stacked to interpose the power storage module, the pair of current collector plates, and the pair of insulating plates in the first direction. The power storage module is configured to include an accommodation space that accommodates an electrolytic solution together with a power generation element. A pressure adjustment valve communicating with the accommodation space is provided on a side surface of the power storage module.

Abstract: A non-reciprocal microwave network is provided that includes an in-line ferromagnetic element with adjoining polarizing adapters to achieve directivity via a multi-mode interaction at or near the ferrite to act as new class of 4-port circulator or 2-port isolator, with standard waveguide inputs for assembly in larger networks.

Abstract: A method for forming a modified resonator is provided. In one aspect, the method includes obtaining a resonator on top of a substrate, thereby forming an interface area between a bottom surface of the resonator and a top surface of the substrate. The resonator can include niobium or tantalum. The method also includes contacting the resonator and the substrate with a liquid acidic etching solution selected so as to have a higher etch rate towards the substrate than towards the resonator and a nonzero etch rate towards the resonator.

Abstract: An antenna apparatus is disclosed, including a lower housing, a middle housing disposed on the lower housing and having one surface formed with one or more first heat dissipation fins, a first accommodation space formed by the lower housing and the middle housing, at least one first heat-generating element disposed in the first accommodation space, one or more heat dissipation supports each disposed on the middle housing and having at least one surface formed with one or more second heat dissipation fins, and an antenna module supported on the one or more heat dissipation supports.

Abstract: Systems and methods described herein include collapsible and deployable antenna structures. The antenna structures may include any combination of shape memory composites, inflatable envelopes, and/or degradable materials.

Abstract: A flexible mount for attaching an object to poles of different diameters is disclosed. The flexible mount includes a series of two or more supports configured to securely hold a pole. Each support includes a bracket, a first bearing, a second bearing, and a tensioner. The bracket includes a first end, a second end, and a mount for mounting an object radially relative to the longitudinal axis of the pole. The first bearing is pivotally coupled to the first end of the bracket. The second bearing is pivotally coupled to the second end of the bracket. The tensioner includes a first end coupled to the second bearing, and a second end coupled to a sequential support in the series.

Abstract: A glazing unit comprising at least a glass panel and an antenna unit. The antenna unit includes an antenna a fixing means for fixing the antenna to the glass panel so that a space S through which air can flow is formed between the glass panel and the antenna with a light transmission of at least 30%, preferably at least 50% and more preferably at least 65%.

Abstract: A scalable, high-bandwidth connectivity architecture for portable storage devices and memory modules may utilize EHF communication link chip packages mounted in various two-dimensional and three-dimensional configurations on planar surfaces such as printed circuit boards. Multiple electromagnetic communication links between devices distributed on major faces of card-like devices may be provided with respectively aligned pairs of communication units on each device. Adjacent communication units on a printed circuit board may transmit or receive electromagnetic radiation having different polarization, such as linear or elliptical polarization. Power and communication between communication devices may both be provided wirelessly.

Abstract: The present disclosure relates to a directional wireless hotspot device for communication in a mobile network having a number of distributed cells, each cell covered by at least one fixed transceiver, the device comprising: a printed circuit board; a directional antenna; a compass, such as a magnetometer; a geographical positioning device, such as a GPS receiver; an electric motor, such as a substantially flat piezoelectric motor, for rotating the printed circuit board around an axis substantially perpendicular to the directional antenna; a wireless modem, such as a 3G/4G/LTE/5G modem, or a receiving element, such as a socket, arranged to receive an external wireless modem; a local communication element, such as a Wi-Fi circuit, for communication with a local device; a microprocessor configured to calculate an azimuthal rotation angle for pointing the directional antenna to one of the fixed transceivers based on: directional and positional data from the compass and geographical positioning device; positional

Abstract: Unpowered wireless signal amplification system that includes a monopole reception antenna and an amplification portion including a wire frame diamond formed from two flat, square wire frames. The unpowered wireless signal amplification system disclosed may be capable of receiving, amplifying, and transmitting wireless signals commonly used today, including multiple signal frequencies simultaneously.

Abstract: An electronic device includes a display layer including an active area and a peripheral area adjacent to the active area. An antenna layer is disposed on the display layer and includes an antenna, an antenna line connected to one side of the antenna, and an antenna pad connected to one side of the antenna line. A cover layer is spaced apart from the antenna layer with the display layer disposed therebetween. The cover layer may at least partially overlap each of the antenna, the antenna line, and the antenna pad.

Abstract: An electronic device is provided. The electronic device includes a first housing structure, a second housing structure, and a foldable housing structure for connecting the first housing structure and the second housing structure. The first housing structure and the second housing structure may include a front plate for interconnecting front surfaces with a flexible display, a rear plate which is an opposite surface to the front plate, a side member which surrounds a space between the front plate and the rear plate, and includes at least in part a conductive portion and an insulating portion, a communication circuit and at least one switch electrically connected to the communication circuit.

Abstract: Various embodiments of the disclosure relate to an electronic device and a method for increasing efficiency of an antenna. The method may include performing a short-range communication function using a first coil in a closed state in which at least a portion of a first housing of the electronic device is slid into an inner space of a second housing of the electronic device, and performing the short-range communication function using a second coil in an open state in which at least a portion of the first housing is slid out of the inner space of the second housing. The disclosure provides various other embodiments.

Abstract: A housing for an electronic device is disclosed. The housing comprises a first component and a second component separated from the first component by a gap. The housing also includes a first molded element disposed at least partially within the gap and defining at least a portion of an interlock feature, and a second molded element disposed at least partially within the gap and mechanically engaging the interlock feature. The first component, the second component, and the second molded element form a portion of an exterior surface of the housing. A method of forming the housing is also disclosed.

Abstract: A mobile terminal comprises: a terminal body; and a first antenna device and a second antenna device disposed at one side of the terminal body in an adjacent manner, and formed to operate at different frequency bands, wherein the first antenna device and the second antenna device are provided with conductive members each having a slit at one side thereof, and wherein the conductive members form part of an appearance of the terminal body.

Abstract: An electronic device is provided. The electronic device includes a first housing including a first conductive portion, a second housing slidably coupled to the first housing at a designated round-trip distance and configured to include a second conductive portion overlapping at least a part of the first conductive portion in a slide-in state, a wireless communication circuit disposed in the electronic device and electrically connected to the first conductive portion, and at least one electrical connection structure disposed in a second space of the second housing and configured to electrically connect the second conductive portion to the first conductive portion in the slide-in state. The wireless communication circuit may be configured to transmit and/or receive a radio signal in at least one frequency band through the first conductive portion and the second conductive portion in the slide-in state.

Abstract: Disclosed is a mechanism for mounting radio heads in close proximity to an antenna on a cell tower. In the examples disclosed, the mounting configurations enable easy access to each of the radios so that they can be serviced individually without interfering with the functioning of the other radio in its communications with the antenna.

Abstract: Apparatuses, methods, and systems for a modular eyewear antenna assembly, are disclosed. One modular eyewear antenna assembly includes an eyewear housing including a front frame and a pair of eyewear temple arms, wherein a physical size and shape of each of the temple arms is selectable from a plurality eyewear assembly SKU sizes and shapes, a printed circuit board (PCB) including a controller and a radio, wherein the PCB extends along at least one of the temple arms, wherein the PCB has a fixed size that is adapted for placement within one of the temple arms, and a modular antenna structure including a planar antenna, wherein the modular antenna structure interfaces with the PCB for providing a wireless propagation path for the radio, wherein the modular antenna structure has a fixed size that is adapted for placement along with the PCB within one of the temple arms.

Abstract: Techniques are provided for fabricating a low profile antenna that operates with increased efficiency. An antenna implementing the techniques according to an embodiment includes a first arm comprising a first spiral portion and a first rectilinear portion, and a second arm comprising a second spiral portion and a second rectilinear portion. The second spiral portion is concentric with the first spiral portion. The antenna further includes an insulator to separate the arms. The insulator and the arms are planar surfaces disposed within a rectangular region. The first rectilinear portion is adjacent to a first and second side of the perimeter of the rectangular region, and the second rectilinear portion is adjacent to a third and fourth side of the perimeter of the region. The antenna is fabricated as a printed circuit board which is mounted on the fuselage of an aircraft, which serves as a ground plane for the antenna.

Abstract: In one example, an antenna system is described. The antenna system includes a primary antenna on an aircraft. The primary antenna is mechanically steerable and has an asymmetric antenna beam pattern with a narrow beamwidth axis and a wide beamwidth axis at boresight. The antenna system also includes a secondary antenna on the aircraft, the secondary antenna including an array of antenna elements. The antenna system also includes an antenna selection system to control communication of a signal between the aircraft and a target satellite via the primary antenna and the secondary antenna. The antenna selection system switches communication of the signal from the primary antenna to the secondary antenna when a performance characteristic for communication with the target satellite satisfies a threshold due to a position of the aircraft relative to the target satellite.

Abstract: An elongate antenna assembly (1) for an aircraft including a structural section (3) and an antenna element (5), wherein the structural section (3) includes an elongate leading edge section (7) extending in a longitudinal direction (13) of the antenna assembly, a first lateral section (9), and a second lateral section (11), wherein the leading edge section (7) is curved such that the leading edge section (7) comprises a convex outer surface (15) extending in the longitudinal direction (13) of the antenna assembly (1) on a convex side (19) of the antenna assembly.

Abstract: An antenna device and an electronic device are provided. The antenna device includes a near field communication chip for supplying a differential excitation current, a ground plane forming a conductive path, a first conductor structure, and a second conductor structure. The first conductor structure, conductive path, and second conductor structure collectively form a conductive loop for transmission of the differential excitation current.

Abstract: The present invention relates to a feed-motion antenna device. Provided is an antenna for receiving data from low Earth orbit satellites, the antenna comprising a fixedly mounted antenna reflector, a moveable feed, a feed positioner configured to move the feed in the focal plane of the antenna reflector, the feed positioned having a primary rotation axis and an auxiliary rotation axis, and a control device configured to send control signals to the feed positioner. The primary rotation axis of the feed positioner passes through the center of the antenna reflector and the primary rotation axis is perpendicular to the focal plane of the antenna reflector; the auxiliary rotation axis of the feed positioner is parallel to the primary rotation axis. The feed positioner comprises an equal-arm structure comprising a first arm and a second arm, and each arm is arranged in a plane perpendicular to the primary and auxiliary rotation axes.

Abstract: An antenna, a manufacturing method of the antenna, and an antenna system are provided. The antenna includes a radiation unit, configured to receive a microwave signal from outside and/or send a microwave signal to the outside; an active amplifying unit, configured to receive a plurality of microwave signals inputted by the radiation unit and amplify the plurality of microwave signals; a phase shifting unit, configured to receive a plurality of amplified microwave signals outputted by the active amplifying unit and perform phase adjustment on the plurality of amplified microwave signals; and a power division and transmission unit, configured to combine a plurality of phase-adjusted microwave signals outputted by the phase shifting unit into a microwave signal and output the microwave signal.

Abstract: An adaptive array antenna system receives a desired wave arriving through K time slots each allocated to one of K transmitting stations. In the adaptive array antenna system, an adaptive control device includes a correlation matrix calculating unit, a correlation matrix storing unit, an inverse matrix calculating unit, and a weighting factor calculating unit. The inverse matrix calculating unit acquires a correlation matrix having been calculated at previous time for another time slot other than the current time slot from the correlation matrix storing unit, regards the acquired correlation matrix as an interference noise correlation matrix, and calculates an inverse matrix of the interference noise correlation matrix. The weighting factor calculating unit calculates values of a plurality of weighting factors used by a beamforming unit using the inverse matrix.

Abstract: A system for adjusting bias power provided to a radio-frequency amplifier to increase plurality of figures of merit based on sensed characteristics of the amplifier and/or characteristics of the input or output power.

Abstract: A system includes a cellular transceiver to communicate with a predetermined target; one or more antennas coupled to the 5G or 6G transceiver each electrically or mechanically steerable to the predetermined target; a processor to control a directionality of the one or more antennas in communication with the predetermined target; and an edge processing module coupled to the processor and the one or more antennas to provide low-latency computation for the predetermined target.

Abstract: A radiating system comprises a radiating structure, first and second external ports, and a radiofrequency system. The radiating structure comprises a ground plane layer including a connection point, a single radiation booster including a connection point, and a first internal port defined between the connection points of the single radiation booster and the ground plane layer. The first and second external ports each provide operation in at least one frequency band. The radiofrequency system includes a first port connected to the first internal port of the radiating structure, and second and third ports respectively connected to the first and second external ports.

Abstract: A flexible substrate includes a dielectric having flexibility, a first line, a second line, and ground electrode. The dielectric has a first surface and a second surface opposed to the first surface. The first line , the ground electrode, and the second line are laminated in this order in layers from the first surface to the second surface. When the flexible substrate is seen through from the thickness direction of the flexible substrate, the first line has a line-symmetrical portion that is line-symmetrical with respect to the second line with a virtual intermediate line (LM) serving as a symmetric line.