Abstract: An electronic device is provided that includes one or more image sensors configured to capture a video feed, an image signal processor configured to perform color correction on the captured video feed based on a brightness level computed from the captured video feed and/or based on a color temperature or illuminant type of the lighting in the captured video feed to generate a corresponding color corrected video feed using a first chromatic adaptation model that is adapted to an immersive viewing condition, and one or more displays configured to output the color corrected video feed. The electronic device can further include a recording pipeline configured to record a version of the captured video feed and can share or transmit the recorded content to an external device. The external device can display the recorded content using a second chromatic adaptation model that is adapted to a non-immersive viewing condition.

Abstract: A method for preparing a zinc manganate anode material is disclosed. The method includes the following steps: (1) preparing a solution A containing a manganese ion and a solution B containing zinc alkali; (2) dispersing an adsorption carrier into the solution B; (3) using an alkali solution as a base solution and adding the solution A, the solution B and an oxidant solution to the base solution while stirring; (4) conducting a solid-liquid separation of the materials after reaction to obtain a solid; and (5) washing, drying and calcining the solid to obtain a zinc manganate anode material.

Abstract: Disclosed in the present invention are an NCA positive electrode material precursor having a core-shell structure, a method for preparing same, and use thereof. The precursor is a spherical or spheroid particle and consists of an outer shell and an inner core. The outer shell has a chemical general formula of NiaCobAlc(OH)2+c, wherein a+b+c=1, 0.45?a?0.55, 0.15?b?0.25, and 0.25?c?0.35; the inner core has a chemical general formula of NixCoyAlz(CO3)1?z(OH)3z, wherein x+y+z=1, 0.85?x<0.98, 0<y?0.15, and 0<z?0.15. The inner core has a porous structure. The inner core in the precursor of the present invention has a high nickel content and a porous structure, which can effectively buffer the volume change caused by subsequent charging and discharging of the NCA positive electrode material. The outer shell is a low-nickel material, which alleviates the volume change caused by the high nickel content.

Abstract: Provided are a template growth method for preparing a lithium cobaltate precursor and use. The method comprises: S1: mixing an aqueous ammonium metavanadate solution with a polyvinylpyrrolidone solution for hydrothermal reaction, and calcining the obtained precipitate under an aerobic atmosphere to obtain a vanadium pentoxide structure-directing agent, wherein the polyvinylpyrrolidone solution is prepared by dissolving polyvinylpyrrolidone in an alcohol; S2: adding the vanadium pentoxide structure-directing agent to a cobalt salt solution to obtain a turbid liquid, adding the turbid liquid, a carbonate solution, and a complexing agent in a parallel flow mode for reaction, and performing aging when the reaction material reaches a target particle size; and S3: performing solid-liquid separation on the aged material, and anaerobically calcining the obtained precipitate before aerobic calcination to obtain a lithium cobaltate precursor.

Abstract: Disclosed in the present invention are a wastewater adsorbent, and a preparation method therefor and the use thereof. The method comprises: mixing a carbon black powder and an ammonium salt solution, heating same for a hydrothermal reaction, followed by filtering, and washing the obtained filter residues with acid to obtain an ammonium-salt-modified carbon black; mixing and grinding a nickel-cobalt-manganese mixed salt and a sodium salt to obtain a mixture, mixing the mixture with an organic acid solution, evaporating same to remove water, subjecting same to a heating reaction in an inert atmosphere, and subjecting the reacted material to acid pickling to obtain a nickel-cobalt-manganese-sodium mixed salt; and mixing the nickel-cobalt-manganese-sodium mixed salt, the ammonium-salt-modified carbon black and a binding agent, and compacting, drying and heating same to obtain a multimetal-carbon-based adsorbent.

Abstract: A battery conveyor belt includes a base, a plurality of parallel connecting shafts arranged on the base at intervals, and a plurality of conveying wheels arranged on the connecting shafts and each include a stator sleeved on the connecting shaft and fixed thereto, a rotor, a coil sleeved outside the stator, a pusher, a receiver located on the rotor, a control circuit, and a hub; the rotor is sleeved outside the coil, and there is a gap between the rotor and the coil; the hub is sleeved outside the rotor, and a first bearing is connected between the hub and the rotor; the pusher is connected to the hub and the rotor; the rotor drives the hub to rotate through the pusher; the control circuit is electrically connected to the coil and the receiver; and when a battery is placed on the hub, the pusher is pressed against the receiver.

Abstract: The present disclosure discloses a porous and spherical cobalt oxide particle and a preparation method therefor. The preparation method includes the following steps: (1) mixing a cobalt salt solution, thiourea, and urea to obtain a mixed solution; (2) heating the mixed solution obtained in step (1) to allow a reaction in an aerobic atmosphere; (3) conducting solid-liquid separation (SLS) to obtain a solid product, and subjecting the solid product to calcination in an aerobic atmosphere to obtain a calcined material; and (4) washing and drying the calcined material obtained in step (3) to obtain the porous and spherical cobalt oxide particle. The cobalt oxide particle prepared by the preparation method has a larger specific surface area (SSA), which can significantly improve a specific capacity of a battery.

Abstract: A layered sodium ion battery positive electrode material and a preparation method therefor. The chemical formula of the layered sodium ion battery positive electrode material is NaxMnO2-a(MO4)a, wherein 0<x?1, 0.01?a?0.2, and M is one or two of W and Mo. The preparation method comprises: preparing a manganese salt solution and a basic potassium permanganate solution mixed with an M element material, wherein the M element material is one or two of molybdate or tungstate; adding the basic potassium permanganate solution to the manganese salt solution, and potassium permanganate solution to the manganese salt solution, and after a reaction is finished, carrying out solid-liquid separation to obtain a solid material; and washing and drying the solid material, mixing the solid material with a sodium source, and then sintering same to obtain a layered sodium ion battery positive electrode material.

Abstract: The present application discloses a nickel-cobalt-manganese ternary positive electrode material nanorod and the use thereof. The chemical general formula of the nickel-cobalt-manganese ternary positive electrode material nanorod is LiNi1-x-y-zCoxMnyAlzO2, where 0<x<1, 0<y<1, and 0?z?0.05; the nickel-cobalt-manganese ternary positive electrode material nanorod has a section diameter of 50-200 nm and a length of 0.1-5 ?m. In the present application, a mixed metal salt solution of nickel, cobalt, manganese, aluminum and lithium and 8-hydroxyquinoline are subjected to complex-precipitation to generate a precipitate containing nickel, cobalt, manganese, aluminum and lithium, and then the precipitate is calcined to prepare a ternary positive electrode material nanorod.

Abstract: The present disclosure discloses a silicon-aluminum-iron composite material and a preparation method therefor and use thereof, and belongs to the technical field of wastewater treatment. The silicon-aluminum-iron composite material comprises an inner core and an outer shell wrapping the inner core; the inner core is a silicon-aluminum-based hollow sphere; the outer shell contains iron element; and there are holes on the silicon-aluminum-iron composite material. The silicon-aluminum-iron composite material of the present disclosure improves the specific surface area of the silicon-aluminum-iron composite material through structural adjustment. When it is used to adsorb heavy metal ions, the adsorption sites are correspondingly increased, which finally improves the adsorption capacity for heavy metal ions.

Abstract: The present disclosure discloses a method for recovering active material from waste battery by desorption, comprising steps of: reacting wound cores of cathode and anode current collectors of waste battery with carbon tetrachloride and chlorine to obtain remaining wound cores, a solution of aluminum chloride in carbon tetrachloride and a first desorption powder of cathode; soaking the remaining wound cores and the first desorption powder of cathode in water to obtain soaked wound cores, a lithium salt solution and a second desorption powder of cathode; and reacting the soaked wound cores with nitric acid to obtain a copper nitrate solution and a desorption powder of anode. The waste lithium-ion battery only needs to be discharged and disassembled, and no shredding process is required, which avoids steps of shredding and sorting, reduces equipment investment. In addition, cathode and anode materials can be effectively recovered, and the product has high economic value.

Abstract: Disclosed is a preparation method for a Prussian blue sodium-ion battery positive electrode material, comprising: adding a first nonionic surfactant and an antioxidant into a sodium ferrocyanide solution to obtain a first solution; adding a second nonionic surfactant into a transition metal salt solution to obtain a second solution; in a protective atmosphere, adding the second solution into the first solution for a precipitation reaction; aging after the reaction has finished; collecting a precipitate, washing same, and carrying out vacuum drying on the washed precipitate; then soaking same in an alcohol solution containing sodium alkoxide; and then filtering same and steam drying to obtain a Prussian blue sodium ion battery positive electrode material. The method may relieve vacuum drying pressure and shorten drying time.

Abstract: Disclosed is a method for preparing a graphene-based sodium ion battery negative electrode material, including adding graphene oxide into ethanol absolute, carrying out ultrasonic treatment at a certain temperature to obtain a graphene oxide alcohol dispersion, then preparing a sodium hexanitritocobaltate solution, adding the graphene oxide alcohol dispersion into the sodium hexanitritocobaltate solution, carrying out solid-liquid separation to obtain a solid, isolating the solid from oxygen for calcination, and washing and drying to obtain a graphene-based sodium ion battery negative electrode material.

Abstract: Methods and apparatuses for handover between different radio access technologies (RATs) are disclosed. According to an embodiment, an access network node receives, from a mobility management entity (MME), information indicating that one or more bearers for a terminal device cannot be handed over to one or more RATs different than long term evolution (LTE). The access network node determines whether to perform a packet switched (PS) handover for the terminal device based on the information.

Abstract: A method for preparing a copper-based anode material from a waste battery includes the following steps: (1) disassembling a waste battery and taking out an anode plate; (2) using the anode plate in step (1) as an anode and taking a copper foil current collector as a cathode, and placing the anode and the cathode in an electroplating solution for electroplating; (3) after the electroplating is completed, collecting anode powder separated from the anode and soaking the copper foil current collector in an acid solution; (4) washing and drying the soaked copper foil current collector; and (5) calcinating the copper foil current collector to obtain a copper-base anode material.

Abstract: The present disclosure discloses a preparation method of a tin-based lithium cobaltate precursor and use thereof. The method involves adding a cobalt salt solution, a precipitant and a complexing agent for reaction to obtain a precipitate, wherein the precipitant is a mixed solution of carbonate and stannate; calcining the precipitate; and mixing the calcined material with dioxane, ball-milling the mixture, and subjecting the ball-milled product to a heating and pressurization treatment to obtain the tin-based lithium cobaltate precursor. In the present disclosure, after carbonate and stannate are blended, the blend react with cobalt salt to form the co-precipitate of cobalt carbonate and cobalt stannate, and after calcination, a mixture of cobalt(II,III) oxide and tin dioxide is formed. By utilizing dioxane for solvent hot pressing, particles are bonded to each other, forming grain boundary channels. In addition, by doping with tin, the conductivity of the material is improved.

Abstract: A gas absorption box includes a box body, at least one gas absorption member and an outer housing assembly, the box body has an accommodating cavity; the gas absorption member is elastic and is provided with a first inner cavity, and the first inner cavity is in communication with the outside of the box body; and the outer housing assembly is arranged in the accommodating cavity and is elastically connected to the box body, and the outer housing assembly has a second inner cavity for accommodating a gas absorbent, the second inner cavity being in communication with the first inner cavity, and the gas absorption member being capable of absorbing gas for the second inner cavity. When battery powder or some positive-electrode materials for batteries are transported, hydrogen generated by the battery powder or some positive-electrode materials for batteries gathers towards the upper portion of a ton bag.

Abstract: The present disclosure discloses a method for extracting lithium from waste lithium batteries, which comprises: leaching positive electrode powder of the waste lithium battery in hydrochloric acid, and obtaining leaching solution by filtering; removing copper and iron from the leaching solution, and then introducing hydrogen sulfide gas for reaction, and performing solid-liquid separation to obtain first filter residue and first filtrate; adding potassium permanganate to the first filtrate, and performing solid-liquid separation to obtain second filter residue and second filtrate; performing spray pyrolysis on the second filtrate to obtain solid particles and tail gas, washing the solid particles with water to obtain a lotion, washing and collecting the tail gas and then mixing the tail gas with the lotion to obtain lithium salt solution.

Abstract: Disclosed in the present invention is a recovery process for a waste battery electrode sheet, the method comprising the following steps: subjecting a waste battery electrode sheet to shearing, drying and cold treatment, and then rolling and screening same to obtain a first positive electrode material and a first waste electrode sheet; subjecting the first waste electrode sheet to shearing, drying and cold treatment, and then rolling and screening same to obtain a second positive electrode material and a second waste electrode sheet; and roasting the first positive electrode material and the second positive electrode material to obtain a positive electrode powder. In the present invention, the aluminum content in the positive electrode material is reduced by means of step-by-step shearing, and the adhesion performance of a waste positive electrode plate binder is then reduced by means of vacuum freeze-drying and spraying with a quick-cooling agent.

Abstract: Disclosed is a dust-proof safe feeding device for power battery black powder acid leaching feeding, including a leaching tank, a blanking grid and a material shaking assembly, where the leaching tank includes a feeding port; the blanking grid is mounted in the feeding port, and the blanking grid is provided with a blanking hole; the material shaking assembly includes a material shaking member and a driving device, the material shaking member is movably arranged in the blanking hole, the driving device is connected with the material shaking member, and the driving device is configured to drive the material shaking member to move in the blanking hole.