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501 results about "Metal deposition" patented technology

Semiconductor device with integrated heat dissipation for power MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) and manufacturing method

The invention relates to the technical field of MOS (Metal Oxide Semiconductor) semiconductors, and discloses a semiconductor device with an integrated heat dissipation function for a power MOSFET (Metal Oxide Semiconductor Field Effect Transistor). The single MOS cell comprises a drain electrode, a semiconductor epitaxial layer, a source electrode and a grid electrode, the semiconductor epitaxial layer comprises an N substrate layer, an N drift layer, a P + layer, an N well layer and a P well layer, the profile of the cross section of the grid electrode is in an H shape, and the grid electrode comprises two longitudinal parts and a transverse part used for bridging the two longitudinal parts. According to the invention, the H-shaped gate structure is in bridge connection with the double longitudinal grooves through the transverse part, so that the channel width is increased, and the on-resistance is reduced; a current path is further optimized by combining a metal deposition layer and a heavily doped N + layer in the bottom doping layer; and the metal layer is connected in parallel to conduct electricity, so that the resistance is reduced, and the heavily doped N + layer inhibits the JFET effect, so that the resistance is reduced by more than 10%.
Owner:BEIJING QINGXIN MICRO ENERGY STORAGE TECH CO LTD

Method for preventing line bending during metal fill process

Provided herein are methods and apparatuses for reducing line bending when depositing a metal such as tungsten, molybdenum, ruthenium, or cobalt into features on substrates by periodically exposing the feature to nitrogen, oxygen, or ammonia during atomic layer deposition, chemical vapor deposition, or sequential chemical vapor deposition to reduce interactions between metal deposited onto sidewalls of a feature. Methods are suitable for deposition into V-shaped features.
Owner:LAM RES CORP

Modified current collector for cathode-free metal battery as well as preparation method and application of modified current collector

The invention relates to a modified current collector for a cathode-free metal battery and a preparation method and application thereof.The preparation method comprises the steps that an in-situ modification reaction is conducted on the surface of a copper current collector to obtain a current collector coated with a copper oxide nanometer material, and then selenium is introduced to the surface of the current collector coated with the copper oxide nanometer material through a partial in-situ substitution reaction to obtain the modified current collector coated with the copper oxide nanometer material. The preparation method comprises the following steps: preparing a copper selenide and copper oxide composite modified current collector, performing in-situ lithiation reaction through electrochemical deposition, and partially converting to generate corresponding lithiates, thereby obtaining the modified current collector for the non-anode metal battery. According to the invention, the functional artificial interface layer with lithium affinity, high stability and high ionic conductivity is constructed on the surface of the copper-based current collector in situ, so that the key problems of uneven metal deposition and unstable SEI layer on the surface of the negative electrode current collector in the current research of the metal secondary battery without the negative electrode are solved, the formation of dendritic crystals and the occurrence of side reactions are inhibited, and the service life of the metal secondary battery is prolonged. Therefore, the coulombic efficiency, the safety and the cycle life of the battery are improved.
Owner:HENAN UNIV OF SCI & TECH

High-density SiC MOSFET structure and preparation process thereof

ActiveCN119907274AMOSFETHigh density
The invention relates to the technical field of MOS (metal oxide semiconductor), and discloses a high-density SiC MOSFET (metal oxide semiconductor field effect transistor) structure and a preparation process thereof, the high-density SiC MOSFET structure comprises a plurality of parallel MOS cells, each MOS cell comprises a drain electrode, a semiconductor epitaxial layer, a grid electrode and a source electrode, each semiconductor epitaxial layer comprises an N substrate layer, an N diffusion layer, a P well layer, an N well layer and a P-layer, the profile of the cross section of the grid electrode is T-shaped, and the width of the cross section of the P well layer and the width of the cross section of the N well layer do not exceed the width of the cross section of the grid electrode. The polycrystalline silicon is introduced to be in direct contact with the source electrode, so that the electric field effect of the drain electrode and the source electrode can be amplified, charges of the drain electrode mainly flow into the N diffusion layer from the metal deposition layer, and under the simultaneous action of a grid electrode electric field and an original electrode electric field, the charges mainly flow towards a charge channel and a charge channel in a concentrated manner; thus, diffusion of charges to adjacent MOS cells can be reduced.
Owner:HANGZHOU SPECTRUM SEMICON TECH CO LTD

Battery charging rate determination method and device, electronic equipment and storage medium

The invention provides a battery charging rate determination method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining a self-discharge current of a battery in each cycle charging process; the self-discharging current is the self-discharging current collected in the constant-voltage charging process when the battery is charged at a first charging rate in each circulating charging process until the electric quantity parameter of the battery reaches a preset electric quantity parameter and the battery is continuously charged in a constant-voltage charging mode; the values of the first charging multiplying power of the battery are different in different cyclic charging processes; and determining the corresponding maximum charging rate of the battery under the preset electric quantity parameter based on the self-discharging current. According to the embodiment of the invention, the maximum charging rate of the battery is determined based on the self-discharging current, and the battery is guided to be charged through the maximum charging rate, so that metal deposition in the battery can be reduced, and the risk of side reaction can be reduced while the charging efficiency of the battery is improved.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Conductive yarn and preparation method thereof

The invention discloses a conductive yarn and a preparation method thereof, relates to the technical field of functional textile materials and composite conductive fiber preparation, and can solve the problems that an existing conductive yarn is poor in flexibility, insufficient in durability, prone to oxidation failure and difficult to integrate multiple functional performances. The preparation method comprises the following steps that S1, PBO yarn is soaked in a dopamine solution, a PDA modification layer is formed on the surface of the PBO yarn through a polydopamine self-polymerization reaction, and the PDA modification layer provides a chelation site and a bonding interface for metal deposition; s2, the PDA modified PBO yarn obtained in the step S1 is subjected to chemical silver plating, silver is deposited on a PDA modified layer to form a continuous conductive layer, and conductive PBO core yarn is prepared; s3, carrying out melt blending and granulation on the low-dielectric-constant flame-retardant filler and thermoplastic polymer resin to prepare flame-retardant composite particles; and S4, spinning by taking the conductive PBO core yarn prepared in the step S2 as a core layer and a melt formed by melting the flame-retardant composite particles prepared in the step S3 as a skin layer to prepare the conductive yarn.
Owner:XI'AN POLYTECHNIC UNIVERSITY

Manufacturing method of silicon capacitor

The invention belongs to the field of design and manufacturing of semiconductors / integrated circuits, and particularly relates to a manufacturing method of a silicon capacitor. Comprising the following steps: forming an oxide layer on a silicon substrate, photoetching and etching to form a 1 # capacitor groove, generating a field oxide layer in the groove, filling doped polycrystalline silicon, processing the surface, etching a 2 # capacitor groove, depositing a multilayer film in the groove, processing the multilayer film at two ends of the groove, depositing silicon oxide, finally connecting an upper polar plate and a lower polar plate through photoetching and metal deposition, removing redundant substances and detecting. According to the method, the structure size and performance can be accurately controlled, the electrical performance, reliability and stability of the silicon capacitor in the field of integrated circuits and the like are improved, and the circuit integration degree is improved.
Owner:WUXI ZHUORUI MICROELECTRONICS TECHNOLOGY CO LTD

Bipolar plate with composite carbon coating, preparation method, electrode and battery

The invention discloses a bipolar plate with a composite carbon coating, a preparation method, an electrode and a battery, the bipolar plate comprises a substrate layer, a transition layer and a composite functional layer, the substrate layer is a metal layer formed by depositing metal Me on the surface of a substrate; the transition layer is formed on the substrate layer and is a metal Me / C layer; the composite functional layer is formed on the transition layer and is far away from the transition layer and comprises a first GLC layer with internal stress relieving and electron conduction functions, a tetrahedral amorphous carbon ta-C layer with a corrosion ion blocking function and a conductive and hydrophobic second GLC layer which are sequentially arranged. The coating provided by the invention has relatively low contact resistance, good ion corrosion resistance and hydrophobic property, and meets the requirement of long-term service of a fuel cell under a durable working condition.
Owner:KUSN FUERSAI ENERGY

Method for supplementing metal cations of plating solution in real time during electroplating

The invention belongs to the technical field of electroplating, and particularly discloses a real-time supplementing method for plating solution metal cations during electroplating. Aiming at the problems of large concentration fluctuation of metal cations and low supplementing efficiency in the traditional electroplating process, the method realizes dynamic balance of the metal cations through an electroplating synchronous electrolysis and anion exchange membrane technology. According to the technical key points, an electroplating liquid chamber and an electrolyte chamber are separated by adopting an anion exchange membrane; ions are supplemented by electrolyzing a soluble single-metal anode corresponding to metal to be plated, and meanwhile, an electrolytic cathode is arranged in an electrolyte chamber, so that metal deposition is avoided; the ion-selective electrode is used for monitoring the concentration of metal cations in real time, and the electrolytic current is automatically adjusted when the concentration deviation exceeds + / -5%. According to the method, ions are directionally supplemented through electrolysis, plating solution pollution and component fluctuation are avoided, and the uniformity and the qualification rate of a plating layer are improved. And the method is suitable for single-metal and multi-element alloy electroplating systems, can be integrated in processes such as jet electrodeposition and bath plating, is high in adaptability, and has industrial application potential.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Negative-electrode-free sodium metal battery cell as well as primary product and preparation method thereof

The invention relates to the technical field of battery manufacturing, and discloses a negative-electrode-free sodium metal battery cell as well as a primary product and a preparation method thereof. The negative-electrode-free sodium metal battery cell primary product comprises a positive electrode, a diaphragm, a negative electrode current collector and an electrolyte, and the electrolyte comprises sodium salt and an additive; the additive comprises a polymer monomer thermal decomposition type initiator; and the thermal decomposition type initiator can initiate the polymerization reaction of the polymer monomer at the polymerization temperature. The preparation method comprises the following steps: charging a negative-electrode-free sodium metal battery cell primary product to a full-charge state with low current, and depositing sodium metal on a negative electrode current collector to form a sodium metal deposition layer, so as to obtain an intermediate product battery; and placing the intermediate battery in an environment of 50-80 DEG C to polymerize the polymer monomer in the electrolyte, and forming a polymer frame layer on the metal deposition layer to obtain a finished product of the negative-electrode-free sodium metal battery cell. The formation of the polymer frame layer can buffer the volume change of the battery and improve the performance of the battery.
Owner:JIANGSU PYLON BATTERY CO LTD

Etching method and plasma processing apparatus

An etching method includes: (a) providing a substrate including an etching target film and a mask on the etching target film; (b) after (a), forming a metal-containing deposit on the mask by a first plasma generated from a first processing gas including a metal-containing gas and a hydrogen-containing gas; (c) after (b), deforming or modifying the metal-containing deposit by a second plasma generated from a second processing gas different from the first processing gas; and (d) after (c), etching the etching target film.
Owner:TOKYO ELECTRON LTD

Low-specific-on-resistivity GaN HEMT device and preparation method thereof

PendingCN120239293AEtchingMaterials science
The invention provides a low-specific-on-resistivity GaN HEMT device and a preparation method thereof. The preparation method comprises the following steps: obtaining a thick-barrier GaN epitaxial structure; manufacturing a low-loss etched hard mask medium on a thick-barrier GaN epitaxial structure of the GaN HEMT device with low specific on-resistivity to form a passivation medium film; defining a gate region of the medium by utilizing a photoetching process, and defining a hard mask medium pattern by adopting a medium etching process; carrying out barrier layer groove etching by adopting a GaN low-loss etching process; etching is accurately stopped; adopting a molecular beam epitaxy process to perform secondary epitaxy on a p-GaN layer in a selected area so as to realize complete depletion of two-dimensional electron gas in a grid area; removing the polycrystalline GaN on the hard mask medium; and after horizontal GaN HEMT tape-out, metal deposition of a source electrode, a drain electrode and a grid electrode of the GaN HEMT is carried out. According to the method, a thick barrier layer structure is adopted, the specific on-resistivity limitation of the device is reduced, the device has low specific on-resistivity, the reliability of the grid electrode is improved, and the stability of the device is improved.
Owner:HUBEI JIUFENGSHAN LAB

Heterocyclic derivative and organic electroluminescent device thereof

The invention provides a heterocyclic derivative and an organic electroluminescent device thereof, and belongs to the technical field of organic electroluminescence. The heterocyclic derivative provided by the invention has relatively weak metal adsorption capacity, when the heterocyclic derivative is used as a nucleation inhibition layer material to be applied to the organic electroluminescent device, deposition of metal on the surface of a thin layer can be effectively inhibited, and meanwhile, the heterocyclic derivative is used as a covering layer material to improve the optical coupling efficiency of the organic electroluminescent device, so that the organic electroluminescent device can be applied to the field of organic electroluminescent devices. And the luminous efficiency of the device is effectively improved. The heterocyclic derivative and the organic electroluminescent device thereof have good application effect and industrialization prospect.
Owner:CHANGCHUN HYPERIONS TECH CO LTD

Rare earth metal electrolysis system and electrolysis furnace thereof

The invention discloses a rare earth metal electrolysis system and an electrolysis furnace thereof, and relates to the technical field of metallurgy, the rare earth metal electrolysis system is characterized by comprising a potential data acquisition and preprocessing module, a dendritic crystal feature extraction and quantification module, a dendritic crystal identification and intelligent determination module and an inverse pulse control and dynamic regulation module, in the electrolysis process, potential distribution original data of the surface of a rare earth metal cathode are detected and collected in real time, the obtained original data are preprocessed, and a preprocessed potential data set is established based on a time sequence. According to the method, intelligent, real-time and accurate inhibition of dendritic crystals in the rare earth metal electrolysis process is achieved, short circuit, splashing and electrode ablation are effectively prevented, the compactness and purity of metal deposition are improved, the current efficiency is remarkably improved, and compared with a traditional scheme, the method has the advantages of being high in real-time performance, good in inhibition effect, small in interference and high in adaptability, and the method is suitable for popularization and application. And efficient and safe preparation of the rare earth metal is ensured.
Owner:GANZHOU CHENXIN METAL MATERIALS CO LTD

Modified negative electrode current collector for sodium metal battery and preparation method of modified negative electrode current collector

The invention provides a modified negative electrode current collector for a sodium metal battery and a preparation method of the modified negative electrode current collector, and belongs to the technical field of secondary batteries. The modified negative electrode current collector comprises a metal substrate and an electron-ion composite conductor coating, the electron-ion composite conductor coating is located on the surface of the metal substrate, and the electron-ion composite conductor coating is obtained by compounding any one of a zeolite molecular sieve and an expansive soil material with a graphitized carbon material. The method disclosed by the invention is simple and feasible, the obtained modified negative electrode current collector can be widely applied to a high-energy-density negative-electrode-free sodium metal battery system, and due to the fact that sodium metal deposition is more uniform and stable, compared with a negative electrode current collector modified only by a graphitized carbon material, the modified negative electrode current collector has better cycling stability.
Owner:ZHEJIANG ZHIYUAN NAKE ENERGY TECHNOLOGY CO LTD

Method and system for controlling metal deposition in light-transmitting PVD (Physical Vapor Deposition) coating

The invention provides a control method and system for metal deposition in light-transmitting PVD coating, and relates to the technical field of strategy optimizing.The control method comprises the steps that plastic part feature information and a target metal deposition effect of a plastic part sample are obtained, and the plastic part sample is a plastic part subjected to light-transmitting PVD coating; acquiring light-transmitting PVD coating process information, wherein the light-transmitting PVD coating process information comprises an initial light-transmitting PVD coating control scheme corresponding to the plastic part feature information; carrying out metal deposition characteristic detection to obtain a detected metal deposition effect; judging whether a target metal deposition effect is met or not; and if not, performing optimization adjustment on the initial light-transmitting PVD coating control scheme to obtain an optimized light-transmitting PVD coating control scheme. The method solves the technical problems that in the prior art, control over the light-transmitting PVD coating process often depends on experience and rules for parameter adjustment, the requirements of different plastic parts for coating process parameters are ignored, the film layer quality cannot stably reach the target effect, and then the product quality is affected.
Owner:JIANGSU XINSIDA ELECTRONICS CO LTD

Method and system for operating a metal hybrid manufacturing system to shorten object formation time

A metal hybrid manufacturing apparatus includes a melted metal drop ejecting device and a metal deposition device. The melted metal drop ejecting device is operated to form perimeters of layers in a metal object being formed by the system. The metal deposition device is operated to fill interior portions of the layers.
Owner:ADDITIVE TECHNOLOGIES LLC +1

Modularized full-spectrum efficient electromagnetic shielding flexible fabric and preparation method therefor

The present invention belongs to the field of the design and preparation of electromagnetic shielding materials. Disclosed are a modularized full-spectrum efficient electromagnetic shielding flexible fabric and a preparation method therefor. The preparation method of the present invention comprises the following steps: (1) subjecting a fabric to a metal deposition treatment by using a magnetron sputtering system, so as to obtain a flexible conductive fabric A; (2) subjecting the surface of a polymer thin film to a metal deposition treatment by using a vacuum coating technology, so as to obtain a high-toughness conductive thin film B; (3) uniformly mixing a carbon-based wave-absorbing material, a polymer and a solvent, and curing the mixture, so as to obtain a wave-absorbing layer C having a certain thickness; and (4) subjecting the functional modules obtained in step (1), step (2) and step (3) to specific permutation, combination and packaging, so as to obtain a modularized full-spectrum electromagnetic shielding flexible composite fabric.
Owner:JIANGNAN UNIV

Josephson junction, superconducting quantum chip preparation method and related products

The invention discloses a Josephson junction, a superconducting quantum chip preparation method and a related product. The preparation method of the Josephson junction comprises the following steps: spin-coating a first layer of photoresist on a substrate and baking; spin-coating a second layer of photoresist again and baking; exposing the first layer of photoresist and the second layer of photoresist, developing after exposure, and forming patterns with crossed gaps in the first layer of photoresist and the second layer of photoresist; cleaning the photoresist left in the cross-shaped gap of the developed substrate by using plasma; then the substrate is put into a TMAH solution to be soaked so as to remove the photoresist left in the cross-shaped gap; mutually crossed metal deposition layers are evaporated in the crossed gaps; and stripping the residual first layer of photoresist and the second layer of photoresist to obtain the Josephson junction. According to the method, under the condition that the size of the side wall of the photoresist of the barrier layer is not influenced basically, the residual photoresist in the cross-shaped gap can be well removed, and the preparation quality of the Josephson junction and the performance of the superconducting quantum chip are improved.
Owner:SHENZHEN SPINQ TECHNOLOGY CO LTD +1

Processing method for laser metal deposition manufacturing process parameters

The embodiment of the invention relates to a processing method for laser metal deposition manufacturing technological parameters. The processing method comprises the steps that multiple pieces of technological parameter information in a laser metal deposition manufacturing multi-technological-parameter deposition experiment are obtained; determining the influence of each piece of process parameter information on the forming quality; according to the influence, determining the influence range of each piece of process parameter information, and taking the influence range as a constraint condition; according to a second algorithm and the objective function, the number of each quality grade in each technological parameter combination is determined; constructing an objective function of process parameter optimization; according to a preset data driving prediction model and a target function, predicting the number of quality grades; calculating the fitness of the initial population; performing non-dominated sorting on the initial population to form a Pareto frontier; according to the fitness, generating a next generation of population through genetic manipulation, and repeatedly iterating until a target population is determined to form a Pareto frontier set; and determining a target process parameter combination according to the Pareto frontier set and the new search strategy.
Owner:CHANGZHOU INST OF TECH

Negative electrode sheet, electrochemical device and electronic device of sodium ion battery

The present application provides a negative electrode plate, an electrochemical device and an electronic device of a sodium ion battery, wherein the negative electrode plate includes a negative electrode current collector, a carbon material coating formed on at least a portion of the surface of the negative electrode current collector, and a sodium metal layer formed on at least a portion of the surface of the carbon material coating away from the negative electrode current collector, the thickness of the carbon material coating is less than or equal to 10 μm, the carbon material coating includes a carbon material and a polymer binder, the carbon material includes an oxygen-containing group, and the mass content of oxygen atoms in the carbon material is ≥ 0.1%. The negative electrode plate of the sodium ion battery provided by the present application deposits metallic sodium on the surface of the negative electrode current collector during the first charge, and the metallic sodium formed by the deposition can adhere to the carbon material coating on the surface of the negative electrode current collector, and the carbon material coating can effectively reduce the overpotential of sodium metal deposition, inhibit the formation of sodium dendrites, and is conducive to improving the cycle performance of the battery.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Electrode assembly, battery cell, secondary battery, and electric device

The present application provides an electrode assembly, a battery cell, a secondary battery, and an electric device. The electrode assembly comprises a positive electrode sheet, a negative electrode current collector and a separator located between the positive electrode sheet and the negative electrode current collector; the electrode assembly further comprises a modification layer, the modification layer is located between the negative electrode current collector and the separator, and the modification layer comprises a base material and an active material dispersed in the base material; the lithium metal nucleation overpotential of the base material is greater than or equal to 80 mV, and the lithium metal nucleation overpotential of the active material is less than that of the base material. The modification layer in the electrode assembly of the present application can reduce volume expansion during the deposition of metals such as lithium and sodium on the negative electrode current collector, so that the risk of piercing the separator caused by volume expansion is reduced, thereby improving the reliability and the cycle performance of batteries.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Modified nickel-based electrode and preparation method and equipment thereof

The invention belongs to the field of catalytic electrodes, and particularly discloses a modified nickel-based electrode and a preparation method thereof.The preparation method of the modified nickel-based electrode comprises the steps that 1, a nickel-based electrode is placed in a precursor solution to be soaked and then transferred into an inert atmosphere or a vacuum atmosphere to be roasted, and a primary modified electrode is obtained; and 2, the step 1 is repeated for one or more times, a secondary modified electrode or a multi-stage modified electrode can be prepared, and the precursor solution is any one or more than two of a sodium phosphite solution and a metal salt solution. A nickel-based electrode is treated through sodium phosphite, phosphide with heterojunction and electronic properties is formed on the surface of the nickel-based electrode, more active sites are provided, a metal salt solution is introduced to treat the sodium phosphite, new active components are introduced, and the performance of the catalytic electrode is regulated and controlled through metal deposition and alloying; and the synergistic effect between the introduced metal element and nickel interacts in the catalytic reaction, so that the catalytic activity and selectivity of the electrode are jointly improved.
Owner:CENT SOUTH UNIV

Vertical plasmon polariton slit waveguide device structure capable of being coupled by optical fiber and preparation method of vertical plasmon polariton slit waveguide device structure

The invention discloses a vertical plasmon waveguide device structure capable of being coupled by an optical fiber and a preparation method of the vertical plasmon waveguide device structure, and belongs to the technical field of integrated optoelectronics, and the structure is composed of a pair of metal gratings and a vertical metal-medium-metal plasmon waveguide. The structure comprises a silicon substrate layer, a lower metal layer, a dielectric layer and an upper metal layer which are arranged from bottom to top and is divided into a grating area and a waveguide area, the grating area comprises a dielectric grating area and a metal grating layer, and the waveguide structure comprises the lower metal layer, the dielectric layer and the upper metal layer. According to the design of the invention, the limitation of mass production caused by an overlay process of a mode converter between heterogeneous integrated waveguides is avoided, and the preparation robustness of the device is improved. The optical insertion loss caused by the roughness of the side wall of the waveguide is improved in a metal deposition-dielectric spin coating-metal deposition mode, and the dielectric layer can be replaced to realize multiple device functions.
Owner:JIANGNAN UNIV

Modified current collector, preparation method of modified current collector and negative-electrode-free secondary battery

The invention relates to the technical field of lithium / sodium ion batteries, in particular to a modified current collector, a preparation method of the modified current collector and a negative-electrode-free secondary battery, the modified current collector comprises a porous metal substrate layer; the deposition layer is formed in the porous metal substrate layer, the deposition layer is formed in the porous metal substrate layer through magnetron sputtering of metal Bi or metal Ag or metal Sn or alloy BiAg or alloy BiSn or alloy BiAgSn, and the deposition layer serves as the negative electrode current collector of the negative electrode-free lithium battery or the negative electrode current collector of the negative electrode-free sodium battery. Volume expansion caused by lithium / sodium deposition can be relieved, generation of dendritic crystals in the circulation process is avoided, the reversibility of lithium / sodium metal deposition / stripping is improved, capacity loss in the circulation process is reduced, the cycle life of the battery is prolonged, and the safety performance of the battery is improved.
Owner:SHANGHAI ZHAONA NEW MATERIAL TECHNOLOGY CO LTD

Metal deposition

Various showerheads and methods are provided. A showerhead may include a faceplate partially defined by a front surface and a back surface, a back plate having a gas inlet, a first conical frustum surface, and a second conical frustum surface, a plenum volume fluidically connected to the gas inlet and at least partially defined by the gas inlet, the back surface of the faceplate, the first conical frustum surface, and the second conical frustum surface, and a baffle plate positioned within the plenum volume, and having a plurality of baffle plate through-holes extending through the baffle plate. The second conical frustum surface may be positioned radially outwards from the first conical frustum surface with respect to a center axis of the showerhead, and the second conical frustum surface may be positioned along the center axis farther from the gas inlet than the first conical frustum surface.
Owner:LAM RES CORP

Integrated circuit interconnect structures with graphene cap

ActiveUS12394716B2Semiconductor/solid-state device detailsSolid-state devicesIntegrated circuit interconnectGraphite
Integrated circuitry interconnect structures comprising a first metal and a graphene cap over a top surface of the first metal. Within the interconnect structure an amount of a second metal, nitrogen, or silicon is greater proximal to an interface of the graphene cap. The presence of the second metal, nitrogen, or silicon may improve adhesion of the graphene to the first metal and / or otherwise improve electromigration resistance of a graphene capped interconnect structure. The second metal, nitrogen, or silicon may be introduced into the first metal during deposition of the first metal, or during a post-deposition treatment of the first metal. The second metal, nitrogen, or silicon may be introduced prior to, or after, capping the first metal with graphene.
Owner:INTEL CORP

Method for stripping negative pole piece in metal battery and method for testing metal battery

The invention provides a stripping method of a negative pole piece in a metal battery and a testing method of the metal battery. The stripping method comprises the following steps: disassembling the metal battery to obtain a negative pole piece with a diaphragm on the surface; the negative pole piece comprises an active metal layer; applying the treating fluid to the negative pole piece with the diaphragm on the surface, enabling the treating fluid to at least act on an interface between the active metal layer and the diaphragm, and stripping the negative pole piece from the diaphragm; wherein the treating fluid comprises a polar aprotic solvent, the dielectric constant of the polar aprotic solvent at 25 DEG C is larger than or equal to 7, and the standard reduction potential of the polar aprotic solvent relative to a standard hydrogen electrode is smaller than-1.1 V. According to the stripping method, the risks of metal adhesion and oxidation blackening can be reduced, the deposition morphology integrity of the metal layer of the cathode pole piece obtained by stripping is improved, and the accuracy of judging the metal deposition condition on the cathode interface of the metal battery is improved.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Electrode assembly, battery cell, secondary battery, and electric device

The invention provides an electrode assembly, a battery monomer, a secondary battery and an electric device. The electrode assembly comprises a positive pole piece, a negative pole current collector and an isolating membrane positioned between the positive pole piece and the negative pole current collector, the electrode assembly further comprises a modification layer, the modification layer is located between the negative electrode current collector and the isolating membrane, and the modification layer comprises a substrate material and an active material dispersed in the substrate material; the lithium metal nucleation overpotential of the substrate material is greater than or equal to 80 mV, and the lithium metal nucleation overpotential of the active material is smaller than the lithium metal nucleation overpotential of the substrate material. The modification layer in the electrode assembly can reduce volume expansion of metals such as lithium, sodium and the like on the negative electrode current collector in the deposition process, so that the risk of puncturing the isolating membrane due to the volume expansion is reduced, and the reliability and the cycle performance of the battery are improved.
Owner:CONTEMPORARY AMPEREX TECHNOLOGY CO LTD

Electrolysis process based on high-entropy electrolyte and application of electrolysis process

The invention discloses an electrolysis process based on a high-entropy electrolyte and application of the electrolysis process, and belongs to the technical field of electrolytic metallurgy, an electrolyte metal salt ion source comprises Zn < 2 + >, Mn < 2 + > and Cu < 2 + >, an electrolyte anion source comprises Cl <->, NO3 <->, SO4 < 2-> and OTf <-> / TFSI <->, and the specific proportion is adjusted according to electrolyzed substances. Compared with a traditional electrolyte, the electrolyte has the advantages that dendritic crystals can be inhibited through anion synergism, the efficiency is improved to 95% or above, the metal deposition uniformity is improved, dendritic crystal growth is inhibited, the current efficiency is improved, the hydrogen evolution side reaction is reduced by 50%-60%, the current efficiency reaches 92% or above, an ethylene glycol-water mixed solvent is adopted for cyclic utilization, the consumption of an organic solvent is reduced, and compared with a traditional lead anode, the time is only 500 hours, and the cost is reduced. And the service life of the anode is prolonged to 2000 hours, the operation and maintenance frequency is reduced, the deposition sequence is regulated and controlled by regulating and controlling the proportion of anions such as Cl <-> / NO3 <->, and different alloy requirements are met.
Owner:HUNAN ZHONGCHUANG CAPITAL ENVIRONMENTAL TECHNOLOGY CO LTD