31 results about "Metal anode" patented technology

This invention relates to the field of aqueous metal battery technology, specifically to an aqueous tin metal battery electrolyte containing metal sulfate additives, its preparation method, and its application. The electrolyte is based on an alkaline electrolyte (such as KOH) and soluble tin salts (such as SnSO4, SnCl2), with added metal sulfates such as Li2SO4, ZnSO4, K2SO4, MnSO4, or Na2SO4 as additives at a concentration of 0.01 mol / L to 0.5 mol / L. The metal cations preferentially adsorb onto the surface of the metal anode to form an electrostatic shielding layer, regulating metal ion deposition behavior, inhibiting the formation of "dead tin," and significantly improving the battery's cycle stability and coulombic efficiency.

This invention belongs to the field of aluminum-ion battery technology, specifically relating to an aluminum-ion battery based on a biomimetic CNT / Al composite metal anode. It comprises a positive electrode, a non-aqueous aluminum salt-based ionic liquid electrolyte, a separator, and a biomimetic CNT / Al composite metal anode. The biomimetic CNT / Al composite metal anode consists of an aluminum substrate and a three-dimensional continuous electron permeation network formed within the aluminum substrate. The aluminum substrate is a micro / nano-scale aluminum sheet, and the three-dimensional continuous electron permeation network is formed by carboxylated multi-walled carbon nanotubes. The three-dimensional continuous electron permeation network extends to the surface of the biomimetic CNT / Al composite metal anode. Compared with existing technologies, this invention solves the problem that existing technologies cannot simultaneously address the issues of ion mass transfer kinetics and interfacial mechanical stability during long-term cycling. This solution achieves long-term stable cycling of the aluminum-ion battery under harsh conditions by constructing a CNT / Al anode with a carbon nanotube (CNT)-like neural network structure.

A lithium metal anode includes a lithium metal or lithium metal alloy foil coated with a cured polymer composite material comprising a siloxane-based polymer and a lithium salt. Further described are related methods for applying a coating solution according to this disclosure to the lithium metal or lithium metal alloy foil to form a coated lithium metal anode, related coating solutions, and a secondary battery including said anode.

In the claimed method, a metal foil forming a first electrical current conductor is provided with openings, which are distributed uniformly on a surface of the metal foil and are arranged with spacings. The metal foil is subsequently brought into contact with a solid electrolyte, and the metal foil perforated in this way is then provided with a polymer coating, with which the free cross-sectional areas of the openings are filled. A thin, dense solid electrolyte layer is subsequently formed, and a layer forming the cathode is then formed on the opposite surface of the solid electrolyte in relation to the first current conductor, or a cathode is integrally bonded to said surface. The cathode is placed in electrically conductive contact with a further metal foil, which forms a second electrical conductor, on the oppositely arranged surface and is ionically conductively infiltrated with a liquid electrolyte, wherein an alkali metal anode is formed on the solid electrolyte in the region of the openings in the metal foil during charging of said electrochemical cells.

A single-ion conducting gel polymer electrolyte includes a fluorine-based compound with 25-40% of its main chain converted to carbon double bonds, and 35-55 wt % of a lithium salt. The polymer ensures anion immobilization, thereby limiting conduction primarily to lithium ions. By including an optional additive such as PEGMEMA in specific weight ratios, the electrolyte achieves both high ionic conductivity and robust film formation. A method for preparing this gel polymer electrolyte involves mixing the fluorine-based compound, lithium salt, and a radical initiator, followed by in-situ crosslinking. The resulting free-standing film exhibits enhanced lithium-metal anode stability, suppressing dendrite formation. Also disclosed is a lithium secondary battery with this gel polymer electrolyte layer positioned between positive and negative electrodes, demonstrating improved cycle life and higher voltage stability disclosure.

The battery comprises a metal anode having a solid electrolyte interface (SEI) surface layer, a cathode having halogen species incorporated into a porous carbon material, an electrolyte having an organic solvent and salt in contact with the anode and cathode, and an oxidizing gas in contact with the electrolyte. The SEI layer has composition M α B β C γ N δ F ε X ζ O η The formula is such that M is a metal, B is boron, C is carbon, N is nitrogen, F is fluorine, X is a non-fluorine halogen species, O is oxygen, α is a number in the range of 0.2 to 0.4, β is a number in the range of 0.0 to 0.1, γ is a number in the range of 0.15 to 0.25, δ is a number in the range of 0.0 to 0.02, ε is a number in the range of 0.0 to 0.1, ζ is a number in the range of 0.005 to 0.02, and η is a number in the range of 0.40 to 0.60, and α, β, γ, δ, ε, ζ, and η are selected such that the sum of α + β + γ + δ + ε + ζ + η = 1. The SEI surface layer of the metal anode suppresses dendrite formation, promotes uniform lithium plating, limits electrolyte decomposition, and extends battery life.

An anode material for an electrochemical cell comprises a matrix material: distributed material composite, which comprises one or more alkali metals and / or alkali earth metals. The distributed material may comprise a metal other than that of the matrix material, such as a transition and / or post transition metal. The anode material may be all or part of an anode for an electrochemical cell, which may further comprises a current collector and / or an SEI layer. The electrolyte may comprises an alkali metal and / or alkali earth metal and / or a transition metal and / or post transition metal containing electrolyte salt. The matrix material and / or the distributed material may comprise one or more of the metals of the electrolyte salt. All or part of the anode may be used as a substrate for electro-deposition of one or more matrix materials during charging and / or all or part of the anode may be used as a source of matrix material during discharging. The electrolyte may further comprise one or more electrolyte additives. The anode material may be produced by mixing a matrix material and distributed material and heating the mixture to selectively melt the matrix material to produce a matrix material: distributed material composite. The composite may be further chemically or mechanically processed to reduce the size of the distributed material and / or to increase the homogeneity of the matrix material: distributed material composite. The anode material, the anode or the electrochemical cell may be used in a device.

This invention discloses a full-ocean-depth metal-seawater fuel cell. The metal anode material mainly comprises one or more of the following components: Mg, Sn, B, La, Ce, Pr, Nd, Dy, Sm, Ti, and Ca, with the balance being Al. The electrolyte of this invention is a mixed aqueous solution of natural seawater, sodium stannate, zinc oxide, zinc sulfate, sodium carbonate, and cerium chloride, with the pH adjusted to between 12 and 14. The metal anode of this invention, in the above electrolyte, not only significantly reduces the hydrogen evolution corrosion rate but also directionally induces product formation, thereby improving electrochemical performance. The preparation method of this metal anode and electrolyte is simple, applicable to different temperature and pressure variations and operating current densities, and can be applied to metal-seawater fuel cells under various operating conditions at full ocean depth.

This invention provides a sulfide electrolyte for low-temperature all-solid-state sodium-sulfur batteries and its preparation method. The sulfide electrolyte comprises a sulfide electrolyte Na3PS4 and a solid electrolyte interfacial film forming agent CuF2-NaNO3, with the CuF2-NaNO3 distributed on the surface of the Na3PS4 particles. The preparation method specifically includes: S1, preparation of the solid electrolyte Na3PS4; S2, preparation of the Na3PS4-CuF2-NaNO3 composite electrolyte. This low-temperature all-solid-state sodium-sulfur battery sulfide electrolyte and its preparation method can solve the problems of instability of sulfide electrolytes to metal anodes and sodium dendrite growth, without reducing the ionic conductivity of the electrolyte. Furthermore, this electrolyte has a self-healing function.

This invention relates to a method for preparing modified cellulose fiber nonwoven materials for ice crystal films. A porous membrane, consisting of a cellulose fiber spunlace nonwoven fabric with a three-dimensional texture, is tightly sandwiched between a soluble metal anode and an inert cathode to construct an electrolytic cell. The electrolytic cell is immersed in an electrophoretic modification solution containing negatively charged biocompatible macromolecules. A DC voltage is applied between the two electrodes, driving the macromolecules to actively penetrate into the spunlace nonwoven fabric via an electric field. An electrochemical oxidation reaction causes the soluble metal anode to release crosslinking ions in situ. These crosslinking ions then react with the migrated macromolecules in situ, forming a gel network within the fiber network. Finally, the product is obtained after rinsing and drying. This invention makes the preparation process more efficient, achieving deep and uniform penetration and efficient in-situ fixation of the modifier in the fiber substrate. It also protects and even strengthens the original physical texture during the modification process, resulting in high-performance gel mask materials.

Methods of assessing an energy storage device include providing material for a metal-chalcogen battery, washing the metal anode in a first organic solvent to form a polychalcogenide free metal anode upon which gas chromatography is performed on the polychalcogenide free metal anode to quantify the amount of M0, soaking the chalcogen cathode and the remainder of the metal- chalcogen battery in the organic solvent used to wash the metal anode to form a first solution comprising methylated polychalcogenide and any soluble chalcogen, removing any remaining chalcogen cathode from the first solution, dissolving the remaining chalcogen cathode in a second organic solvent to form a chalcogen containing second solution, performing high performance liquid chromatography -ultraviolet on the first solution and the second solution, separately, and performing battery failure analysis based thereon. The battery failure analysis may be completed using a high-performance liquid chromatography -ultraviolet spectroscopy and gas chromatography sequential characterization (HUGS) computer implemented method.

The disclosed lithium-metal anode comprises: a copper current collector; a lithiophilic layer which is disposed on the copper current collector and which comprises a lithium alloy; a lithium layer disposed on the lithiophilic layer; and a solid electrolyte interface layer which is disposed on the lithium layer and which comprises lithium fluoride. The lithium-metal anode has improved stability and performance.

The application discloses a kind of tin oxide-based organic solar cell devices based on organic small molecule modification and preparation method thereof.The battery device structure of the application is sequentially from bottom to top: transparent substrate, conductive cathode, electron transport layer, photoactive layer, hole transport layer and metal anode, the electron transport layer is composed of lower metal tin oxide and upper small molecule (2-(3-1,10-phenanthroline group)-6-naphthyl) diphenyl phosphine oxide composite electron transport layer, under the condition of AM1.5G light source, 27.64mA·cm ‑2 Short-circuit current is obtained, and fill factor is increased to 74.93%, and more than 17% photoelectric conversion efficiency is realized, which has great application prospect in future engineering application.

This disclosure relates to rechargeable battery packs and or rechargeable battery modules consisting of electrochemical cells in general and more specifically to lithium metal anode secondary electrochemical cells and the supporting mechanical structure of such packs or modules which apply and maintain a high and uniform normal compression pressure to the face of the interconnected cells of said battery packs, modules or individual cells, in order to suppress dendrite formation during charge and maintain a low cell impedance during charge and discharge. This is achieved with the use of a compression assembly having a compressible sheet with desired properties.

The present invention relates to an automated system (100) and an automated method (300) for controlled surface removal of defects on cast metal anodes (110) prior to electrorefining, including anodes of copper, nickel, lead, or other electrochemically refinable metals. The system comprises a detection system (130), a surface removal head (140), a surface removal module or tool (141), a relative displacement system (150), a control unit (170), and optionally, a collection or extraction system (160). The control unit (170) obtains surface information from the anode, determines a surface conditioning zone (120), commands general surface removal, and subsequently determines localized zones with surface defects or residual contaminants (121) for selective surface removal.The surface removal module or tool (141) may comprise a mechanical tool, an abrasive tool, a pressure water nozzle, a very high pressure water nozzle, or a combination thereof, including cleaning with water without added abrasive. In one embodiment, the system integrates milling or conditioning of upper lugs (112) to prepare electrical contact surfaces prior to electrorefining.

The application discloses a water heater, which comprises a water tank, an electronic anode and an air power supply module. The air power supply module comprises a shell, the shell comprises a first shell body, a second shell body and a cathode film, and the first shell body is provided with a mounting opening; the cathode film is arranged on the first shell body and seals and covers the inner side of the mounting opening; the first shell body and the second shell body are connected together, a liquid storage cavity is formed in the shell on the inner side of the cathode film, and the liquid storage cavity is filled with electrolyte; a metal anode is arranged in the second shell body; and an electrode assembly comprises a first electrode and a second electrode, the first electrode is arranged on the first shell body and electrically connected with the cathode film, and the second electrode is arranged on the second shell body and electrically connected with the metal anode. The air power supply module has a longer service life under the condition of meeting the current anti-corrosion requirement of the water heater, and the frequency of replacement of the user is reduced, so that the user experience is improved.

The application discloses a water heater, comprising a water tank, an electronic anode and an air power supply module. The air power supply module comprises: a shell, a liquid storage cavity is formed in the shell, and the liquid storage cavity is filled with electrolyte; a cathode film is arranged in the shell, the inner surface of the cathode film is in contact with the electrolyte, and the outer surface of the cathode film is configured to be in contact with air; a metal anode is arranged in the shell; an electrode assembly comprises a first electrode and a second electrode; wherein, an exhaust hole is arranged on the shell, and a waterproof air permeable component is arranged on the exhaust hole; the waterproof air permeable component comprises a first diaphragm and a second diaphragm, and the second diaphragm is arranged on the inner side of the first diaphragm; the first diaphragm is configured to block the water in the liquid storage cavity from flowing out and to allow the gas in the liquid storage cavity to pass through and be discharged. The air power supply module has a longer service life under the condition of meeting the current corrosion prevention requirement of the water heater, and the frequency of replacement of the user is reduced to improve the user experience.

This invention relates to a method and device for fabricating a curved cold cathode X-ray source, achieving better process compatibility, more precise curvature, and a more precise and compact structure. The fabricated curved cold cathode X-ray source includes: a curved anode substrate, a curved cathode substrate, and an insulating isolator; the curved anode substrate includes a curved anode base and a metal anode target disposed on the curved anode substrate; the curved cathode substrate includes a curved cathode base, a cathode electrode disposed on the curved cathode base, a cold cathode emitter array disposed on the cathode electrode, an insulating layer, and a gate electrode disposed on the insulating layer; the metal anode target is fixedly connected to one side of the insulating isolator, and the cathode electrode is fixedly connected to the other side of the insulating isolator.

This application discloses a microwave-based jet engine afterburner, belonging to the field of thermomechanical technology. It includes a microwave heating mechanism, whose microwave generator comprises a cathode electron source, a heating component, a ring-shaped metal anode, an electromagnet, and a DC power supply component. The cathode electron source is located at the center of the ring-shaped metal anode. The heating component causes the cathode electron source to emit free electrons. The DC power supply component supplies power to the cathode electron source and the ring-shaped metal anode to form a DC electric field and supplies power to the electromagnet to generate a magnetic field orthogonal to the DC electric field. The strip-shaped groove within the ring-shaped metal anode serves as a microwave resonant cavity. The movement of free electrons excites microwaves, which are used to heat the exhaust gas from the engine's main combustion chamber. The microwave generator is coaxially positioned within the gas flow channel. This device replaces traditional afterburning with microwave heating, offering faster heating speed, a more compact structure, and improved thermal efficiency of the afterburner, solving the problems of easy flameout and low combustion efficiency in traditional afterburner combustion chambers.

The application relates to the field of electrodes, in particular to a preparation method of an MnO2 / IrO2-coated anode. The preparation method comprises the following steps: sequentially performing sand blasting, type correction, alkali washing, acid etching and drying on a metal anode substrate to obtain a rough metal substrate; mixing manganese salt, iridium salt, citric acid and an alcohol solvent, and standing to obtain an active metal gel; coating the active metal gel on the surface of the rough metal substrate, and then sequentially performing drying, shaping and cooling; repeating the coating-second drying-shaping-cooling process; and then performing sintering to obtain the MnO2 / IrO2-coated anode. The application takes the metal anode as a substrate material, uniformly coats the MnIr gel precursor on the metal surface through a sol-gel method, adopts drying, low-temperature shaping and high-temperature sintering to obtain the target electrode meeting the conditions of industrial application, and can be widely applied to seawater electrolysis, treatment of medical water and industrial wastewater.

The present invention relates to a secondary battery and a charging and discharging method, wherein a back surface electric field application means comprising a mesh-shaped back surface auxiliary electrode and a sodium ion-conducting insulating layer such as NASICON-based oxide or β-alumina is disposed on the back surface opposite to the front surface facing the anode of a sodium metal cathode, and by applying a uniform electric field from the back surface auxiliary electrode, the current density distribution is homogenized across the entire front surface of the sodium metal cathode to suppress the formation of sodium dendrites and the generation of dead sodium. The secondary battery according to the present invention independently controls the uniform precipitation of sodium ions during charging and the uniform dissolution of sodium metal during discharging by means of a first voltage and a second voltage based on a Na / Na+ reference potential, and dynamically adjusts the applied voltage through a sensing unit that detects the front surface current density distribution in real time and a feedback control unit. The present invention is applicable to all-solid-state sodium batteries and hard carbon composite cathode structures, and significantly improves the lifespan, safety, and Coulomb efficiency of sodium metal secondary batteries for grid-connected energy storage devices, humanoid robots, and next-generation mobility.

The application discloses a water heater, which comprises a water tank, an electronic anode and an air power supply module. The air power supply module comprises a shell, a liquid storage cavity and an air cavity are formed in the shell, the liquid storage cavity and the air cavity are communicated through a mounting opening, a cathode film is further arranged in the liquid storage cavity, the cathode film is sealed and covers the inner side of the mounting opening, an air passage is further arranged on the shell, the air passage is communicated with the air cavity, the air passage is arranged on the upper part of the shell, a metal anode is arranged in the liquid storage cavity, an electrode assembly comprises a first electrode and a second electrode, the first electrode and the second electrode are arranged on the shell respectively, the first electrode is electrically connected with the cathode film, and the second electrode is electrically connected with the metal anode. The air passage is arranged above the liquid level of the electrolyte, so that the electrolyte is prevented from leaking to the outside of the shell, and the use reliability is improved.

A rechargeable battery has a metal anode with a solid electrolyte interphase (SEI) surface layer, a cathode with a halogen species integrated in a porous carbon material, an electrolyte with an organi

In this process, a metallic foil forming a first electrical conductor is provided with perforations that are evenly distributed and spaced across the surface of the metallic foil. The metallic foil is then brought into contact with a solid electrolyte, and subsequently, the perforated metallic foil is coated with a polymer coating that fills the open cross-sectional areas of the perforations. Following this, a thin, dense layer of solid electrolyte is formed, and subsequently, a layer forming the cathode is created on the surface of the solid electrolyte opposite the first conductor, or a cathode is bonded there.The cathode is electrically contacted with another metallic foil forming a second electrical conductor on the opposite surface and is ionically infiltrated with a liquid electrolyte, whereby an alkali metal anode is formed on the solid electrolyte in the area of ​​the openings in the metallic foil during the charging of these electrochemical cells.

The application discloses an air power supply module and a household appliance. The air power supply module comprises a shell, a liquid storage cavity is formed in the shell, a mounting port communicating with the liquid storage cavity is arranged on the shell, a cathode film is arranged in the shell, and the cathode film seals and covers the mounting port; electrolyte is filled in the liquid storage cavity; a metal anode is arranged in the shell; an electrode assembly comprises a first electrode and a second electrode, the first electrode and the second electrode are arranged on the shell respectively, the first electrode is electrically connected with the cathode film, the second electrode is electrically connected with the metal anode, and the first electrode and the second electrode are arranged back to back. The air power supply module has a longer service life under the condition that the current corrosion prevention requirement of a water heater is met, the frequency of replacement of users is reduced, and the user experience is improved.

This utility model discloses an air-powered module and a household appliance. The air-powered module includes: a housing, a liquid storage cavity formed within the housing, an installation port communicating with the liquid storage cavity on the housing, a cathode film disposed within the housing, and the cathode film sealingly covering the installation port; the liquid storage cavity is filled with electrolyte; a metal anode disposed within the housing; and an electrode assembly including a first electrode and a second electrode, the first and second electrodes being respectively disposed on the housing, the first electrode being electrically connected to the cathode film, and the second electrode being electrically connected to the metal anode; wherein, a mounting and fixing part is provided within the liquid storage cavity, and the metal anode is disposed on the mounting and fixing part, the mounting and fixing part being configured to arrange the metal anode above the bottom surface of the housing such that a gap is formed between the metal anode and the bottom surface of the housing. This improves the power generation performance of the air-powered module.

This invention relates to the field of electrode materials technology, and more particularly to a NaInSn / Na2O ternary alloy composite electrode sheet, its preparation method, and its application. Preparation method: Under a protective atmosphere, sodium metal and indium tin oxide are heated and melted together. The resulting Na-ITO mixture is cooled and then rolled. The prepared composite electrode sheet mainly consists of metallic Na and Na2O. 28 In 14 Sn 15 The structure consists of a ternary alloy phase and Na₂O. The ternary alloy phase provides abundant sodium-loving active sites; at the same time, the Na₂O phase has high mechanical strength and can reduce Na₂O content. + The diffusion barrier is effectively reduced. The synergistic effect of these two factors significantly optimizes the interfacial reaction process of the sodium metal anode and effectively suppresses dendrite growth. In addition, the constructed three-dimensional framework has a rich porous structure, which can provide buffer space for the volume changes generated during sodium deposition / stripping, thereby further improving the structural stability of the electrode.

The application discloses a water heater, comprising a water tank, an electronic anode and an air power supply module. The air power supply module comprises: a shell, a liquid storage cavity is formed in the shell, and the liquid storage cavity is filled with electrolyte; a cathode film is arranged in the shell, the inner surface of the cathode film is in contact with the electrolyte, and the outer surface of the cathode film is configured to be in contact with air; a metal anode is arranged in the shell; an electrode assembly comprises a first electrode and a second electrode; wherein, an exhaust hole is arranged on the shell, and a waterproof air permeable component is arranged on the exhaust hole; the waterproof air permeable component comprises a first diaphragm and a second diaphragm, and the second diaphragm is arranged on the inner side of the first diaphragm; the first diaphragm is configured to block the water in the liquid storage cavity from flowing out and to allow the gas in the liquid storage cavity to pass through and be discharged. The air power supply module has a longer service life under the condition of meeting the current corrosion prevention requirement of the water heater, and the frequency of replacement of the user is reduced to improve the user experience.

This utility model discloses an electrochemical protection device based on the sacrificial characteristics of magnesium metal anodes. The device includes a magnesium rod, which is mounted on a circulating water pipe via a fixing assembly. A conductive connector is fixedly attached to one end of the magnesium rod outside the circulating water pipe. The device also includes a monitoring device fixedly attached to the fixing assembly. This electrochemical protection device based on the sacrificial characteristics of magnesium metal anodes solves the problems of high cost, complex construction, and poor effectiveness of existing rust prevention methods for circulating water pipes.