Abstract: The disclosure herein relates to rechargeable batteries and solid electrolytes therefore which include lithium-stuffed garnet oxides, for example, in a thin film, pellet, or monolith format wherein the density of defects at a surface or surfaces of the solid electrolyte is less than the density of defects in the bulk. In certain disclosed embodiments, the solid-state anolyte, electrolyte, and catholyte thin films, separators, and monoliths consist essentially of an oxide that conducts Li+ ions. In some examples, the disclosure herein presents new and useful solid electrolytes for solid-state or partially solid-state batteries. In some examples, the disclosure presents new lithium-stuffed garnet solid electrolytes and rechargeable batteries which include these electrolytes as separators between a cathode and a lithium metal anode.

Abstract: Various implementations include audio devices and methods for noise reduction control in wearable audio devices and/or vehicle audio systems. Certain implementations include a method of controlling a noise cancelation (NC) setting at a vehicle audio system and an active noise reduction (ANR) setting at a non-occluding wearable audio device, the method comprising: adjusting at least one of the NC setting at the vehicle audio system or the ANR setting at the non-occluding wearable audio device in response to detecting the presence of the non-occluding wearable audio device in the vehicle.

Abstract: The present invention provides a diaphragm manufacturing method, including: a base, a membrane, a molding step, and a cutting preparation step. The membrane is fitted at a central location of a through hole and forms an interspace a main body portion. A molding step further consists of forming a suspending edge between the main body portion and the membrane, whereby the suspending edge is formed with extended portions that extend into corresponding connecting grooves. A cutting step comprises cutting the connecting portions and the extended portions, to form a diaphragm fabricated from the main body portion, the membrane, and the suspending edge. The base can be gripped by mechanical arms by means of the external portions, thus achieving the effectiveness of automated production, as well as increasing production yield and efficiency.

Abstract: Set forth herein are pellets, thin films, and monoliths of lithium-stuffed garnet electrolytes having engineered surfaces. These engineered surfaces have a list of advantageous properties including, but not limited to, low surface area resistance, high Li+ ion conductivity, low tendency for lithium dendrites to form within or thereupon when the electrolytes are used in an electrochemical cell. Other advantages include voltage stability and long cycle life when used in electrochemical cells as a separator or a membrane between the positive and negative electrodes. Also set forth herein are methods of making these electrolytes including, but not limited to, methods of annealing these electrolytes under controlled atmosphere conditions. Set forth herein, additionally, are methods of using these electrolytes in electrochemical cells and devices. The instant disclosure further includes electrochemical cells which incorporate the lithium-stuffed garnet electrolytes set forth herein.

Abstract: Provided herein are defect-free solid-state separators which are useful as Li+ ion-conducting electrolytes in electrochemical cells and devices, such as, but not limited to, rechargeable batteries. In some examples, the separators have a Li+ ion-conductivity greater than 1*10?3 S/cm at room temperature.

Abstract: An active noise reduction earbud includes a housing and a first feedforward microphone disposed in the housing. A first sound inlet opening extends through the housing and is configured to conduct external sound to the first feedforward microphone. The first sound inlet opening is configured to sit within a concha cavum of a user's ear and faces toward an auricle of the user's ear when the earbud is worn.

Abstract: The disclosure herein relates to rechargeable batteries and solid electrolytes therefore which include lithium-stuffed garnet oxides, for example, in a thin film, pellet, or monolith format wherein the density of defects at a surface or surfaces of the solid electrolyte is less than the density of defects in the bulk. In certain disclosed embodiments, the solid-state anolyte, electrolyte, and catholyte thin films, separators, and monoliths consist essentially of an oxide that conducts Li+ ions. In some examples, the disclosure herein presents new and useful solid electrolytes for solid-state or partially solid-state batteries. In some examples, the disclosure presents new lithium-stuffed garnet solid electrolytes and rechargeable batteries which include these electrolytes as separators between a cathode and a lithium metal anode.

Abstract: The present disclosure provides hearing assistance devices and methods of generating a resonance within hearing assistance devices that use moving coil drivers, e.g., electro-dynamic coil drivers. As small moving coil drivers are typically inefficient within the voice band of frequencies, e.g., above 1 kHz, the hearing assistance devices described herein utilize the resonance of a mass within the hearing assistance device and a compliance of air within the housing of the hearing assistance device or within portions of the acoustic driver housing to aid in amplification of select frequencies within the voice band of human speech, e.g., between 2.5 kHz and 6 kHz. By using the assistance of the resonance created, the moving coil driver utilized does not need to operate as efficiently within the range of resonance frequencies.

Abstract: Various implementations include audio devices and methods for noise reduction control in wearable audio devices and/or vehicle audio systems. Certain implementations include a non-occluding wearable audio device having: at least one electro-acoustic transducer; at least one microphone; and a control system coupled with the at least one electro-acoustic transducer and the at least one microphone, the control system programmed to: adjust an active noise reduction (ANR) setting for audio output to the at least one electro-acoustic transducer in response to detecting use of the non-occluding wearable audio device in a vehicle.

Abstract: An electrochemical cell catalyst support includes a fibrous catalyst support material. The fibrous catalyst support material includes a mixed metal oxide material of magnesium (Mg) and titanium (Ti) with a general formula of MgaTibO5-x, where 0?x?3, and a ratio of a to b is greater than 0.01 and less than 0.8.

Abstract: An electrochemical cell (e.g., a fuel cell) includes an anode layer, a cathode layer, and an electrolyte membrane layer disposed between and spacing apart the anode layer and the cathode layer. The electrochemical cell further includes a functional layer disposed at an interface between the cathode layer and the electrode membrane layer. The functional layer includes a composition including a carbon material, an ionomer material, and optionally an amount of catalyst material.

Abstract: A hydrogen electrochemical stack includes a plurality of hydrogen electrochemical cells, a common water input source upstream from the plurality of hydrogen electrochemical cells, the common water input source including a water stream with metal ions, and a deionizing additive source including a deionizing additive selectively binding the metal ions and non-binding to hydrogen ions.

Abstract: A hydrogen electrochemical system includes a cell including a membrane electrolyte and catalyst-loaded catalyst layers and a deionization subsystem including a selectively binding chelator binding one or more metal ions, the selectively binding chelator having pKa value(s) at which its hydrogen(s) dissociate, the pKa value(s) being different from pH value(s) of the cell in operation, the deionization subsystem being located in a water recirculation loop of the cell.

Abstract: An electrolyzer system includes an input water source releasing a water stream with one or more metal ions into the electrolyzer system, an electrolyte membrane and catalyst-loaded catalyst layers downstream from the input water source, an additive source, located upstream from the electrolyte membrane and catalyst layers and downstream from the water source, with an additive including an acidic precipitating agent and being released into the water stream to chemically interact with the one or more metal ions present in the input water stream to form a neutral precipitate, and a controller programmed to add a predetermined amount of the additive to the water stream at predetermined intervals.

Abstract: A hydrogen electrochemical system including an electrolyzer or fuel cell including a membrane electrolyte and catalyst-loaded catalyst layers, a deionization system including an additive binding to a metal ion in water present in the membrane electrolyte or fuel cell, and a sensor structured to monitor quantity of the metal ion, the sensor including an indicator compound bound to the additive.

Abstract: A hydrogen electrochemical system includes a cell including a membrane electrolyte and catalyst-loaded catalyst layers, an input water stream upstream from the cell, and a deionization device including a selectively binding complexing chelator non-binding to hydrogen ions, binding to non-hydrogen ions, and forming a complex with the non-hydrogen ions, the selectively binding complexing chelator enters the input water stream.

Abstract: The instant disclosure sets forth multiphase lithium-stuffed garnet electrolytes having secondary phase inclusions, wherein these secondary phase inclusions are material(s) which is/are not a cubic phase lithium-stuffed garnet, but which is/are entrapped or enclosed within a lithium-stuffed garnet. When the secondary phase inclusions described herein are included in a lithium-stuffed garnet at 30-0.1 volume %, the inclusions stabilize the multiphase matrix and allow for improved sintering of the lithium-stuffed garnet. The electrolytes described herein, which include lithium-stuffed garnet with secondary phase inclusions, have an improved sinterability and density compared to phase pure cubic lithium-stuffed garnet having the formula Li7La3Zr2O12.

Abstract: Provided herein are detect-free solid-state separators which are useful as Li| ion-conducting electrolytes in electro-chemical cells and devices, such as, but not limited to, rechargeable batteries. In some examples, the separators have a Li+ ion-conductivity greater than 1*10?3 S/cm at room temperature.

Abstract: Provided are a crucible combination and a thermal field assembly. The crucible combination includes a susceptor holder; a susceptor body disposed on the susceptor holder, the susceptor body comprises a crucible installation cavity that gradually increases from the susceptor holder in a direction departing from the susceptor holder; and a crucible disposed in the crucible installation cavity, an outer surface of the crucible is an outer surface that gradually increases from the susceptor holder in the direction departing from the susceptor holder, the outer surface and an inner surface of the crucible installation cavity are arranged oppositely, and a softening temperature of the susceptor body is greater than the softening temperature of the crucible.

Abstract: An electrolysis cell for electrolyzing water into hydrogen and oxygen. The electrolysis cell includes a polymer electrolyte membrane (PEM), a porous transport layer (PTL), and an anode catalyst layer. The PTL includes a PTL surface facing the PEM and including a PTL surface morphology. The anode catalyst layer is deposited on the PTL surface morphology to form a porous transport electrode (PTE) including a PTE surface morphology. An ionomer and/or inert filler material may be infiltrated into the surface pores of the PTL and/or PTE.