Abstract: Systems and methods are provided for monitoring properties of a web during a roll-to-roll manufacturing process. The methods may include moving the web past a first roller such that the web contacts the first roller, wherein the first roller includes a first contact strip formed of an electrically conductive material and extends circumferentially about the first roller, applying a voltage to the first contact strip while moving the web past the first roller, such that the voltage conducts through the web to a second contact strip, measuring the voltage received by the second contact strip, determining local resistance values relative to positions of the web based on the difference in the voltage applied to the first contact strip and the voltage received by the second contact strip, and determining at least one property of the web relative to the positions of the web based on the local resistance values.

Abstract: Embodiments of this application disclose a noise cancellation apparatus and method. The noise cancellation apparatus includes a main control unit and a noise cancellation processing circuit. The main control unit determines a noise cancellation parameter based on a noise cancellation level index or a feature value for determining a matching degree between a headset and an ear canal of a user. The noise cancellation processing unit obtains an inverse phase noise of an ambient noise based on the noise cancellation parameter. After the inverse phase noise is mixed with a played downlink audio signal, the ambient noise can be canceled. In addition, because the noise cancellation parameter is determined from a preset noise cancellation parameter library based on the received or autonomously determined noise cancellation level index, instead of being uniformly configured, a noise cancellation level can be flexibly adjusted.

Abstract: A method for manufacturing a cathode electrode of a battery cell includes providing a dry powder mixture including an active material, a conductive additive, and a binder to a first extruder; mixing the active material, the conductive additive, and the binder in the first extruder; partially fibrillating the binder in the first extruder; supplying an admixture from the first extruder to a first input of a second extruder; supplying a solvent to a second input of the second extruder; mixing the active material, the conductive additive, the binder, and the solvent in the second extruder; fibrillating the binder in the second extruder; and forming an active material layer using an extrudate die arranged at an output of the second extruder.

Abstract: A method for fabricating an electrode for a battery cell includes supplying a first electrode film from a first roll. The first electrode film comprises an active material for exchanging lithium ions and a binder. The method includes treating a first side of the first electrode film using a first plasma treatment system; supplying a current collector, and heating and pressing the first side of the first electrode film to a first side of the current collector together using first and second rollers.

Abstract: Systems and methods are provided for monitoring properties of a web during a roll-to-roll manufacturing process. The methods may include moving the web past a first roller such that the web contacts the first roller, wherein the first roller includes a first contact strip formed of an electrically conductive material and extends circumferentially about the first roller, applying a voltage to the first contact strip while moving the web past the first roller, such that the voltage conducts through the web to a second contact strip, measuring the voltage received by the second contact strip, determining local resistance values relative to positions of the web based on the difference in the voltage applied to the first contact strip and the voltage received by the second contact strip, and determining at least one property of the web relative to the positions of the web based on the local resistance values.

Abstract: A method for manufacturing an electrode includes feeding an electrode mixture to a first conveyor belt. The electrode mixture includes electrode active materials, conductive carbons and polymeric binders. The first conveyor belt moves the electrode mixture film along a first belt-moving direction. The method further includes transferring the electrode mixture film from the first conveyor belt to a second conveyor belt. The second conveyor belt moves the electrode mixture film along a second longitudinal direction. The first belt-moving direction is oblique angled relative to the second longitudinal direction. The side rollers on the second conveyor fold the electrode mixture film at a certain angle with the support of a pair of guide rollers. The method includes hot pressing the electrode mixture film using at least one hot roller to fiberize the PTFE binder along the second belt-moving direction.

Abstract: A method for manufacturing an anode electrode includes supplying an anode current collector; coating a first portion of the anode current collector with a precursor coating; not coating a second portion of the anode current collector with the precursor coating; treating the anode current collector with plasma to at least one of decrease lithium wettability of the first portion and to increase lithium wettability of the second portion; and coating the anode current collector with lithium metal to form an anode active material layer.

Abstract: A method for manufacturing patterned electrodes includes extruding a mixture including an active material, a conductive additive, a binder, and a solvent from an extruder to form an active material layer; laminating the active material layer and a current collector; and patterning the active material layer using a patterned roller including a plurality of projections that form a plurality of features extending into the active material layer.

Abstract: A method for forming an electrode, the method including: applying an active layer on a transfer device configured to move the active layer onto a current collector, the active layer including at least one binder, at least one active material, and at least one solvent; heating the active layer to evaporate the at least one solvent and draw the at least one binder to an outer surface of the active layer; and after heating the active layer, applying the active layer to the current collector with the outer surface in contact with the current collector.

Abstract: Aspects of the disclosure include cathode insulation coatings and coating overlap designs that leverage a porous deposition of cathode insulation coating material. An exemplary vehicle includes an electric motor and a battery pack electrically coupled to the electric motor. The battery pack includes a plurality of battery cells. Each battery cell includes a cathode current collector having a cathode tab, a cathode active material dispersed over the cathode current collector, and a cathode insulation coating. The cathode insulation coating is formed directly on a portion of the cathode active material and directly on a portion of the cathode tab. The cathode insulation coating includes a porous macrostructure that is patterned such that portions of the cathode active material underlying the cathode insulation coating are exposed, thereby providing a porous cathode insulation coating that protects against separator misalignment and slippage with a reduced loss in ion transport dynamics.

Abstract: A suspension structure and a vehicle are disclosed. The suspension structure includes: a leaf spring assembly, a connecting bracket, and a steering knuckle. The leaf spring assembly includes two leaf spring components arranged along a front-to-back direction. Each of the leaf spring components is arranged transversely relative to a main structure. A middle of each leaf spring component is fixedly connected to the main structure. Two free ends are disposed along a length direction of each leaf spring component. The free ends include a mounting portion. The connecting bracket includes a bracket body and a ball pin. The bracket body includes a first arm body and a second arm body. The first arm body intersects one end of the second arm body, and is connected to the ball pin at an intersecting end.

Abstract: Embodiments of this application disclose a wind noise suppression device including a first woven mesh, a second woven mesh, a device housing, and a structural component. The device housing defines a sound pickup hole. The first woven mesh covers the sound pickup hole. The structural component is disposed behind the sound pickup hole. The structural component is coupled to the device housing and forms a cavity. The structural component defines a sound transmission hole. The second woven mesh covers the sound transmission hole. A microphone is disposed at the sound transmission hole. Due to the structural characteristics of all the components the device, wind noise included in an audio signal that is be received by the microphone through the sound transmission hole is effectively reduced.

Abstract: A battery that cycles lithium ions includes a positive electrode including an electroactive positive electrode material and a polymer binder mixture. The polymer binder mixture includes a polyvinylidene fluoride (PVDF) homopolymer and a copolymer including vinylidene fluoride (VDF) monomers and at least one perfluorinated olefin monomer. The positive electrode may be manufactured by depositing a precursor mixture on a substrate at a temperature of less than or equal to 30 degrees Celsius to form a precursor layer. The precursor mixture may include the electroactive positive electrode material, the polymer binder mixture, and an organic solvent comprising ?-valerolactone, dihydrolevoglucosenone, cyclopentanone, or a combination thereof. The organic solvent may be removed from the precursor layer to form the positive electrode on the substrate.

Abstract: A method for manufacturing patterned electrodes includes extruding a mixture including an active material, a conductive additive, a binder, and a solvent from an extruder to form an active material layer; laminating the active material layer and a current collector; and patterning the active material layer using a patterned roller including a plurality of projections that form a plurality of features extending into the active material layer.

Abstract: A method for manufacturing an anode electrode includes supplying an anode current collector; coating a first portion of the anode current collector with a precursor coating; not coating a second portion of the anode current collector with the precursor coating; treating the anode current collector with plasma to at least one of decrease lithium wettability of the first portion and to increase lithium wettability of the second portion; and coating the anode current collector with lithium metal to form an anode active material layer.

Abstract: Embodiments of this application disclose a noise cancellation apparatus and method. The noise cancellation apparatus includes a main control unit and a noise cancellation processing circuit. The main control unit determines a noise cancellation parameter based on a noise cancellation level index or a feature value for determining a matching degree between a headset and an ear canal of a user. The noise cancellation processing unit obtains an inverse phase noise of an ambient noise based on the noise cancellation parameter. After the inverse phase noise is mixed with a played downlink audio signal, the ambient noise can be canceled. In addition, because the noise cancellation parameter is determined from a preset noise cancellation parameter library based on the received or autonomously determined noise cancellation level index, instead of being uniformly configured, a noise cancellation level can be flexibly adjusted.

Abstract: An active noise cancellation (ANC) method applied to a headset includes obtaining a first group of filtering parameters, and performing noise cancellation using the first group of filtering parameters. The first group of filtering parameters is one of N1 groups of filtering parameters prestored in the headset. The N1 groups of filtering parameters are respectively used to perform noise cancellation on ambient sound in N1 leakage states. The N1 leakage states are formed by the headset and N1 different ear canal environments. N1 is a positive integer greater than or equal to two.

Abstract: A steering knuckle includes a housing and an extension arm. One end of the extension arm is disposed on the housing on a side corresponding to a position of a rear wheel. A first assembly hole configured to fit a ball joint tie rod is created at another end of the extension arm. The housing includes a bottom face as well as a first end face and a second end face disposed opposite to each other on the bottom face. A second assembly hole configured to fit a ball joint lower control arm is created on the first end face. A third assembly hole configured to fit a ball joint upper control arm assembly is created on the second end face. A connecting line between the second assembly hole and the third assembly hole forms a kingpin axis.

Abstract: A headset with the active noise cancellation (ANC) function includes an ANC module, a plurality of speakers, a plurality of power drive circuits, and at least one reference microphone. An output end of any one of the plurality of power drive circuits is connected to at least one of the plurality speakers. The ANC module is connected between at least one reference microphone and input ends of the plurality of power drive circuits. The at least one reference microphone is configured to collect at least one first ambient noise signal. The ANC module is configured to obtain at least one mixed audio signal. The plurality of power drive circuits are configured to perform power amplification on the at least one mixed audio signal based on respective output powers to obtain at least one power-amplified mixed audio signal.

Abstract: A method for manufacturing electrodes for a battery cell includes providing a first free-standing electrode; providing a current collector including holes; providing a second free-standing electrode; and laminating the current collector between the first free-standing electrode and the second free-standing electrode using at least one of heat and pressure and without using a solvent.