60 results about "Ionic conductance" patented technology

The invention discloses a high-rate lithium nickel manganese oxide material modified by high-entropy doping site design, a preparation method thereof and a lithium ion battery, and belongs to the technical field of lithium nickel manganese oxide materials, the preparation method comprises the following steps: adding a lithium source, a nickel source and a manganese source into water according to LiNi < 0.5-x > N < x > Mn < 1.5-y > M < y > O < 4 >, and stirring to obtain a mixture; and adding soluble salt or metal oxide of covalent or heterovalent doped ions M with radius close to that of Mn < 4 + > ions and soluble salt or metal oxide of covalent or heterovalent doped ions N with radius close to that of Ni < 2 + > ions into the first solution, adding a complexing agent and a viscosity regulator, regulating the pH value, aging, drying and sintering. Ions with similar atomic radiuses are selected for different atomic sites for design replacement, and lattice distortion is avoided. High-valence metal ions such as V < 5 + > / Nb < 5 + > / Sb < 5 + > / Mo < 6 + > are added, so that the cation disorder of the material is improved, and the ionic conductance and the electronic conductance of the crystal material are further improved.

A positive electrode material, a preparation method therefor and a use thereof. The positive electrode material comprises a core and a first shell layer, a lattice in a near-surface region of the core having a layered structure is doped with at least one of Co, Ti and Zr, and the first shell layer comprises a material capable of improving the ionic conductivity of the positive electrode material, or a material capable of improving ionic conductivity and electronic conductivity.

The invention discloses a modular integrated stretchable electrochromic device array and a preparation method thereof. The modular integrated stretchable electrochromic device array comprises a hydrogel-based adhesion substrate, ionic conductive hydrogel, electrochromic units, a microcontroller and hydrogel-based conductive electrodes. The invention discloses acrylamide / 2-acrylamido-2-methylpropane sulfonic acid / glycerin hydrogel with a substrate having excellent adhesion, stretchability and transparency. The ionic conductive hydrogel has excellent ionic conductivity, stretchability and transparency, and the electrochromic layer is dispensed on the surface of the hydrogel to form a uniform composite layer, so that the electrode has excellent electronic conductivity, stretchability and transparency. According to the flexible stretchable electrochromic array, simple, convenient and rapid integration of devices can be achieved by means of the self-adhesion performance between hydrogel and modular structural design, and the devices can still run reliably after multiple times of stretching circulation and show excellent stability; the response speed is excellent, the optical contrast ratio is good, and the visual response to voltage is realized.

The invention belongs to the field of scanning ion conductance microscopes and scanning electrochemical cell microscopes, and discloses a scanning imaging system and method based on optical feedback positioning and ion conductance technology, the scanning imaging system comprises an SICM ion current circuit, an optical path reflector and an adapter bracket, the adapter bracket is arranged on a motion platform, and a laser generator is arranged on the upper part of the adapter bracket; the light path reflector is rotationally connected with the adapter bracket, a prism system and a CCD camera are sequentially arranged on a reflected light path of the light path reflector, and the prism system is fixed on the adapter bracket; the lower part of the adapter bracket is provided with a micromotor, the output end of the micromotor is connected with a Z-direction piezoelectric ceramic, the Z-direction piezoelectric ceramic is connected with a piezoelectric ceramic controller and is connected with the flexible hinge, the Z-direction piezoelectric ceramic is provided with a probe holder, the SICM probe is arranged on the probe holder, and the probe electrode is arranged in the SICM probe. According to the invention, the position of the probe can be rapidly and accurately controlled, and the problem of low scanning speed of scanning ionic conductivity detection equipment is solved.

The present application relates to a kind of porous gel electrolyte membrane based on polyvinylidene fluoride and its preparation method, belong to polymer gel electrolyte field.The porous gel electrolyte membrane includes gel electrolyte matrix, inorganic ceramic nano filler, lithium salt electrolyte and lithium salt auxiliary agent.Using phase inversion solidification method, the uniform porous structure is obtained, the adsorption and storage capacity of porous gel electrolyte membrane to electrolyte are improved;Using inorganic ceramic nano filler with high ionic conductance, the ionic conductance and mechanical strength of porous gel electrolyte membrane are enhanced;Using lithium salt added during preparation, the dehydrofluorination reaction of PVdF is inhibited, the stability of slurry is ensured, and by inducing the transition of PVdF matrix from alpha phase to beta phase, the uniform deposition of Li ion is promoted, so as to improve the cycle stability of battery.The preparation method of the present application is simple, easy to control, green and environmentally friendly, can significantly improve the ion transport kinetics and electrochemical stability of lithium ion battery.

The invention provides a compound additive for an electrolyte. A <-> is selected from one of boron-containing inorganic anions or nitrogen-containing organic anions; r1-R4 and X are respectively and independently selected from one of a hydrogen atom, a halogen atom, a C1-C7 alkyl chain or a C1-C7 alkyl chain with a substituent group, a C1-C7 alkoxy chain or a C1-C7 alkoxy chain with a substituent group, a C2-C7 olefin chain or a C2-C7 olefin chain with a substituent group; y is selected from a sulfur atom or an oxygen atom, and A-in the formula 1 and X in the formula 2 respectively contain at least one halogen atom. The electrolyte additive shows high ionic conductivity and good interface mechanical performance, and interface charge transfer impedance is remarkably reduced; meanwhile, the dendritic crystal growth puncture problem at the interface is effectively inhibited, and the cycle life and the safety performance of the battery are improved.

The application provides a kind of composite solid electrolyte particles and its preparation method and application, the composite solid electrolyte particles are core-shell structure, the core layer of the core-shell structure includes inorganic solid electrolyte, the shell layer of the core-shell structure includes organic component, with the inorganic solid electrolyte as core layer, the organic component is coated on its outside as shell layer, can be comprehensive inorganic solid electrolyte and organic component both sides of advantage, reach the effect of playing to one's strengths and avoiding one's weaknesses, so that the composite solid electrolyte particles obtained simultaneously have higher mechanical properties, higher stability and higher ionic conductance characteristics, applied in solid-state battery helps to improve the interface problem between electrolyte and positive and negative electrode in the solid-state battery, and then helps to improve the electrical properties and safety performance of the solid-state battery.

The present invention discloses a positive electrode sheet and a preparation method thereof, a battery, a battery pack and an electrical device. The positive electrode sheet includes a current collector and multiple positive electrode active layers. The multiple positive electrode active layers are sequentially arranged on at least one side surface of the current collector in the thickness direction. The positive electrode active layer includes a polymer and a plasticizer. In the direction away from the current collector, the weight-average molecular weight of the polymer of the multiple positive electrode active layers increases sequentially, and the molar molecular weight of the plasticizer of the multiple positive electrode active layers increases sequentially. The positive electrode sheet according to the present invention is conducive to exerting the synergistic effect of the polymer and the plasticizer, optimizing the ion path inside the positive electrode sheet, and improving the ion conductivity of the positive electrode sheet. At the same time, the activity of the polymer molecular chain is suitable for the needs of the corresponding positive electrode active layer, which can effectively reduce the polarization of the battery and improve the electrochemical performance of the positive electrode sheet. As a result, the gradient ion conductivity of the positive electrode sheet is improved, the ion conductivity of the positive electrode sheet is improved and the polarization is reduced, the ion transmission path is optimized, and the ion conductivity and rate performance are improved.

The application discloses a preparation method and application of an oxygen vacancy Li2ZrO3 material and belongs to the field of lithium ion batteries. The oxygen vacancy Li2ZrO3 with uniform structure and high ionic conductivity is successfully prepared by using seaweed fiber, hydrochloric acid, ethanol, zirconium chloride, lithium carbonate and sodium borohydride as raw materials. The seaweed fiber is used as a template, so that the defect of excessively large crystal particle size caused by the traditional solid-phase sintering method is avoided to a certain extent; and the oxygen vacancy is manufactured in a certain concentration of sodium borohydride aqueous solution without changing the structure, so that the operation is simple and practical, and the product is controllable.

The problems or issues faced by typical larger SSE batteries are solved by providing an interface or interfacial layer at least between the anode, which comprises Li or Na, and the solid state electrolyte (SSE). In some other embodiments, an interfacial layer may be provided between the anode, which comprises Li or Na, and the SSE, and an interface or interfacial layer may also be provided between the cathode and the SSE. In at least selected embodiments, aspects or objects, the interfacial layer may act as a shock absorber between a SSE (e.g., a sulfide glass SSE) and an anode material that is soft compared to the SSE (e.g., Li metal). In other embodiments, the interfacial layer may act as a shock absorber between the SSE and a cathode material that is softer than the SSE. In at least certain embodiments, the interfacial layer may improve ionic conductance between the anode and the SSE and / or the SSE and the cathode. In at least certain selected embodiments, the interfacial layer may prevent or deter lithium deposition and dendrite growth at the interface between the anode and the SSE. Interface defects at the interface between the anode and the SSE may allow lithium deposition and dendrite growth. The dendrites may continue to grow through cracks in the SSE causing a short, which is a safety issue. The inventive interfacial layer between the anode and the SSE may prevent or deter this. In at least some embodiments, the interfacial layer may be a porous polymer layer filled with liquid electrolyte and may improve ionic conductance between the anode and the SSE and / or the SSE and the cathode. In certain embodiments, the anode interface or interfacial layer may be a porous polymer layer filled with liquid electrolyte. In some embodiments, the cathode interface or interfacial layer may be a porous polymer layer filled with liquid, gel or polymer electrolyte.

The invention discloses preparation of epoxy group modified zinc ion hydrogel and application of the epoxy group modified zinc ion hydrogel in an efficient hybrid capacitor, and belongs to the technical field of capacitor materials. The problems that an existing zinc ion hydrogel electrolyte is low in specific capacity, poor in mechanical performance, pierced by zinc dendrites and the like are solved. The hydrogel electrolyte takes gelatin and carboxymethyl chitosan as a substrate and polyethylene glycol diglycidyl ether as an additive, and is applied to a high-efficiency hybrid capacitor. According to the invention, interaction between gelatin and carboxymethyl chitosan and an ionic conductivity improvement mechanism are explored. And an epoxy group of polyethylene glycol diglycidyl ether and amino and carboxyl of gelatin are subjected to a ring-opening reaction to form a covalent cross-linked network, so that the ion transmission effect is enhanced, and the mechanical property is improved. According to the invention, blending of three substances is realized only through simple physical stirring, and compared with the most widely used hydrogel electrolyte, the preparation design scheme of the electrolyte greatly improves the specific capacity of a hybrid capacitor.

The invention provides a compound. The compound has a structure as shown in a formula (I). The invention also discloses a functional additive for the secondary battery electrolyte. The electrolyte additive can be preferentially combined with methoxyl / trifluoroethoxyl free radicals to terminate a chain reaction, further decomposition of CO3 <-> and other anions is inhibited through coordination or steric hindrance, in addition, a compact interface layer with high ionic conductance can be formed on the surface of an electrode, and continuous decomposition of the electrolyte is blocked. The functional additive and the FEC are combined for use and have a synergistic effect, so that the oxidation resistance of the solvent and the positive electrode material is improved, meanwhile, the attack of free radicals generated by decomposition of the FEC on carbonic ester is avoided, a composite SEI layer rich in inorganic Li3BO3 / LiF is formed, the interface ion conductivity and mechanical strength are improved, the rate and the cycling stability are improved, and particularly, the high-pressure and high-temperature cycling stability is improved. # imgabs0 #

The invention discloses an all-solid-state electrolyte film, a preparation method thereof and a secondary battery. The all-solid-state electrolyte film comprises a solid electrolyte layer and an ion conduction layer, the solid electrolyte layer contains solid electrolyte, and the ion conduction layer contains lithium salt. According to the all-solid-state electrolyte film provided by the invention, the at least one solid electrolyte layer and the at least one ion conduction layer are compounded, so that the electrolyte is ensured to be uniformly and firmly attached to the diaphragm, the electrolyte is effectively prevented from falling off or being unevenly distributed, and the stability and the reliability of the electrolyte film are improved; meanwhile, the ionic conductivity of the diaphragm is improved by utilizing the ionic conduction layer, so that the prepared all-solid-state electrolyte film has high ionic conduction performance, the electrolyte is uniform and firm, and the mechanical strength and the stability are good. The preparation method of the all-solid-state electrolyte film is simple and controllable, large-scale production is easy to realize, and some defects caused by complex equipment and process in a traditional preparation method are avoided.

The application discloses a kind of coated ternary positive electrode material and its preparation method, battery, which includes ternary positive electrode material core, gradient Al2O3 inner coating layer and LiAlO2 outer modification layer from inside to outside in sequence;Gradient Al2O3 inner coating layer includes inner layer Al2O3 and outer layer Al2O3, the thickness of inner layer Al2O3 is less than the thickness of outer layer Al2O3, and the density of inner layer Al2O3 is greater than the density of outer layer Al2O3.The application solves the problems of large interface impedance of traditional coating material, easy cracking and falling of coating layer in the cycle process, serious structure degradation under high voltage by gradient Al2O3 inner coating layer and outer layer high ionic conductance LiAlO2 outer modification layer, and prepares coated high-nickel ternary positive electrode material with strong interface stability, low impedance and excellent cycle life, effectively improves the electrochemical performance of battery under high-voltage working condition, and is suitable for high-energy-density power battery and energy storage battery field.

The invention discloses a preparation method of a high ionic conductance vacancy-rich Li3N solid electrolyte, which comprises the following steps: in an Ar atmosphere, carrying out ball milling on Li3N and ZrO2 balls in a ball mill; pressing the ball-milled Li3N powder to obtain a Li3N film A; preheating the pressed Li3N film A, and pressing the preheated Li3N film A and a lithium metal negative plate B to obtain a composite plate AB; the SSE powder is ground and then pressed into a film C; and the pressed SSE film C and the surface, deviating from the lithium metal negative electrode plate, of the Li3N film A are pressed to obtain a composite plate CAB, and the CA layer serves as a solid electrolyte layer. According to the invention, Li3N with high space concentration is prepared by using a ball milling technology, Li3N SSE rich in space in a solid electrolyte layer has high stability to a lithium metal negative plate and has excellent cycle performance in an all-solid-state battery, and in addition, according to an energy transfer theory, ZrO2 with an optimal size and a mass ratio are combined with a proper rotating speed and time, the specific surface area of the lithium metal negative plate is increased, and the specific surface area of the lithium metal negative plate is increased. And proper Li and N vacancies can be generated in Li3N.

This invention discloses a composite solid-state electrolyte, its preparation method, and a battery. The composite solid-state electrolyte comprises a polymer matrix, a sulfide ceramic filler, a main lithium salt, and a nitrile-based lithium salt additive. The nitrile-based lithium salt additive forms an interfacial passivation layer on the surface of the sulfide ceramic filler to suppress interfacial side reactions between the sulfide ceramic filler and the polymer matrix and / or the main lithium salt. This invention maintains the structural integrity of the sulfide ceramic filler, preserving its inherent high ionic conductivity channels, while reducing the interfacial impedance between the organic and inorganic phases, thereby improving the ionic conductivity and interfacial stability of the composite solid-state electrolyte.

The invention discloses an electrolyte film, a preparation method thereof and a solid-state battery. The electrolyte thin film has a three-layer stacked structure, and comprises: a positive electrode stabilizing layer in which an F element is doped in a host material; an O element is doped in a main body material of the fast ion conductive layer; an anode stabilizing layer in which an N element is doped in a host material; wherein the fast ion conductive layer is positioned between the positive electrode stabilizing layer and the negative electrode stabilizing layer; and the main body materials of the positive electrode stabilizing layer, the fast ion conductive layer and the negative electrode stabilizing layer are the same solid halide electrolyte. According to the invention, the same solid halide electrolyte is used as a main body material, a three-layer stacked structure of a positive electrode stable layer, a fast ion conductive layer and a negative electrode stable layer is constructed by doping different elements (F, O and N) in a layered manner, and the homogeneous main body material is utilized, so that side reaction between electrolyte layers can be effectively inhibited, and relatively good contact performance can be maintained; meanwhile, performance complementation is realized through functional doping of each layer, and high ion conductivity and a wide electrochemical window are both considered.

This invention provides a multifunctional halide material, its preparation method, and its application; the multifunctional halide material includes at least one of the following: (I) Li 2‑x M 1‑x A x Cl4;(II) Li 2‑x M' 1‑ x A x Cl4;(II)Li 2‑x M'' 1‑x A x Cl 4‑3x E 3x The multifunctional halide material of this invention possesses both high ionic conductivity and partially reversible delithiation capability, providing additional lithium ions to achieve a lithium replenishment effect.

The invention discloses a preparation method of an electrolyte suitable for a manganese-zinc secondary battery, which comprises the following steps: premixing a solvent, sequentially adding deionized water, ACN, Py, DTA and EG, and stirring; dissolving salt in batches, uniformly adding Zn (OTF) 2 into the reaction kettle in batches, and dissolving to obtain a clear and transparent solution; adding CTAB (cetyltrimethyl ammonium bromide) suspension into the solution and stirring under the synergism of the surfactant; vacuum degassing: removing dissolved oxygen and trace volatile components in the solution in vacuum; and fine filtration and impurity removal: filtering the solution to meet the condition that metal ion impurities are less than or equal to 1ppm, thereby obtaining the high-reversibility electrolyte. According to the electrolyte, on the premise that safety and cost are not sacrificed, nearly 100% Zn electroplating / coulombic stripping efficiency is achieved, dendrite deposition is avoided, the MnO2 positive electrode is high in reversible capacity of 1500 circles or above, hydrogen evolution reaction and electrolyte drying are effectively inhibited, low-temperature long-term stable operation is kept, and the characteristics of low viscosity, high ionic conductivity and non-flammable property are considered.

This invention belongs to the field of battery technology, specifically relating to a dual-network gel electrolyte, its preparation method, and its application. The raw materials of the dual-network gel electrolyte include a first polymer, a second polymer, a metal salt, a plasticizer, a crosslinking agent, and a solvent. The first polymer forms a flexible first network through chemical crosslinking, serving as the main channel for ion transport to ensure high ionic conductivity. Simultaneously, the second polymer is introduced, interpenetrating with the first network through physical or chemical interactions to form a second network. This structure, through synergistic action, preferentially causes reversible damage to the second network to dissipate energy when subjected to external forces (such as zinc dendrite growth stress), thereby protecting the integrity of the main chain structure and ion channels of the first network. Ultimately, the gel achieves excellent mechanical properties such as high toughness and puncture resistance while maintaining high ionic conductivity and excellent capacity retention, solving the problem of mutual constraint between the two in traditional solutions.

A method of preparing an ionic liquid includes the following steps. The halogen-containing compound is reacted with the first compound to form a second compound. The halogen-containing compound includes a halocarbon, a sulfonyl halide, or a combination thereof. The first compound comprises an amine compound with a tertiary amino group, a phosphine compound or a combination of the amine compound and the phosphine compound. The second compound includes a first quaternary ammonium salt, a first quaternary phosphonium salt, or a combination thereof. The second compound is reacted with a lithium salt in a microwave device to form a third compound. The third compound includes a second quaternary ammonium salt, a second quaternary phosphonium salt, or a combination thereof. The anions of the second compound and the third compound are different. The microwave power of the microwave device ranges from 700 watts to 1400 watts. The preparation of the ionic liquid in the microwave device can reduce the time for preparing the ionic liquid. According to the preparation method disclosed by the invention, the ionic liquid with low water content, high ionic conductivity, low viscosity and wide electrochemical stability window can be prepared.

The invention discloses a high-stability and high-ionic-conductivity solid oxide electrolyte, a preparation method of the high-stability and high-ionic-conductivity solid oxide electrolyte and an oxide electrolyte sheet for a solid-state battery, and provides the preparation method of the high-stability and high-ionic-conductivity solid oxide electrolyte. The preparation method comprises the following steps: preparing a solid oxide electrolyte precursor by taking a composite solvent of an organic solvent and water as a ball milling medium, and carrying out post-treatment on the solid oxide electrolyte precursor to prepare the solid oxide electrolyte, wherein the volume ratio of the organic solvent to the water in the composite solvent is (9: 1)-(2: 8); the organic solvent comprises at least one of an aliphatic hydrocarbon solvent and an alcohol solvent. The solid oxide electrolyte precursor is prepared by using the composite solvent of the organic solvent and the water as the ball milling medium, so that the microstructure of the solid oxide electrolyte can be optimized, the relative density can be improved, and meanwhile, the content of Li2CO3 on the surface can be reduced, thereby improving the ionic conductivity of the solid oxide electrolyte.

The invention discloses a novel silicon-based potassium ion solid electrolyte material and an optimized and modified preparation method and application thereof, and belongs to the technical field of potassium ion solid electrolyte materials. The chemical general formula of the material is K3-xLnSi (3-x) PxO9 (x = 0-0.3), wherein Ln is Y or Gd. The solid electrolyte material is prepared by a solid phase method, has the advantages of simple preparation method and strong ionic conductivity, has better practical value, and can be applied to potassium ion solid-state batteries.

The invention discloses a composite electrostatic spinning fiber diaphragm for a high-stability supercapacitor and a preparation method of the composite electrostatic spinning fiber diaphragm. The diaphragm comprises a high-stability oil-soluble polymer as a fiber skeleton; the high-ionic-conductivity water-soluble polymer is used as an ion transmission enhancing component; and water nanoparticles are not generated in the reaction process with hydrofluoric acid. The polymers are dispersed in a mixed solvent capable of dissolving the two polymers at the same time, electrostatic spinning is carried out, and the graded porous nanofiber membrane is obtained through the phase-induced separation process induced by solvent volatilization. Nanoparticles can be introduced through a deposition loading method or a blending spinning method, and the nanoparticle / polymer composite electrostatic spinning fiber diaphragm with high porosity, high specific surface area and high ionic conductivity is prepared. The composite electrostatic spinning fiber diaphragm has the advantages that the composite electrostatic spinning fiber diaphragm is good in stability under the conditions of high working voltage and high temperature, HF corrosion and gas expansion can be effectively inhibited, and therefore the internal resistance stability, the capacity retention ratio and the cycle life of the supercapacitor are remarkably improved.

The invention provides a nanofluid memristor based on a two-dimensional material nanopore and a preparation method thereof, and belongs to the technical field of brain-like memorizers, and the preparation method comprises the following steps: transferring a two-dimensional material prepared by a chemical vapor deposition method to a suspended silicon nitride film substrate with a single micron pore through a polymer auxiliary transfer method to form a two-dimensional material device; a nanopore device is controllably prepared and formed through an electrochemical etching method; wherein the etching of atoms is realized by applying voltage to the two sides of the graphene in the electrolyte solution. According to the invention, only the nanopores with the atomic-scale length are provided, the thickness is small, the ion transport efficiency is high, and ultra-low power consumption under the action of each pulse can be brought; compared with a traditional electronic material memristor and an existing fluid memristor, the electrical property can be switched by an ionic conductance value, and the memristive response and the resistance switching ratio can be regulated and controlled by an ionic valence; the preparation method is simple, is compatible with an MEMS process, and can realize large-scale production.

To provide a surface treatment apparatus and a coating material, in which the accuracy of surface treatment can be improved.SOLUTION: A surface treatment apparatus comprises: a housing arranged facing a to-be-treated object including a conductor part, in which a liquid chamber can be formed inside; an electrode arranged in the housing; an ion conductive membrane between the electrode and the to-be-treated object; a coating material arranged between the to-be-treated object and the ion conductive membrane; and a power supply unit for applying a voltage between the electrode and the to-be-treated object. The coating material includes a metal mask. The metal mask includes a covering part for covering a non-treated part of the to-be-treated object and a mask opening part for exposing a to-be-treated part of the to-be-treated object. The surface on the ion conductive membrane side of the covering part is subjected to insulation treatment. The surface of the to-be-treated object is treated by electrolysis through the ion conductive membrane and the coating material by applying the voltage between the electrode and the to-be-treated object.SELECTED DRAWING: Figure 1A

The invention discloses a high-specific-energy and high-power battery electrode compound material, an electrode, a device, a preparation method and application. The positive electrode compound material comprises a positive electrode active material, a high-ionic-conductivity solid electrolyte and a high-electron-conductivity additive; the positive electrode active material comprises two or more of an active material A, an active material B and an active material C; the maximum multiplying power of the active material A, the maximum multiplying power of the active material B and the maximum multiplying power of the active material C are smaller than or equal to 2C, larger than 2C and smaller than or equal to 5C and larger than 5C respectively; the negative electrode compound material comprises a negative electrode active material, a high-ionic-conductivity solid electrolyte and a high-electron-conductivity additive; the negative electrode active material comprises two or more of an active material D, an active material E, an active material F and an active material G; the energy storage mechanisms of the active materials D, E, F and G are respectively an alloy type, a conversion type or a conversion-alloy type, a high-pressure embedded type and a low-pressure embedded type. The energy density and the power density of the battery device are remarkably improved, and the battery device has good cycling stability.

The application relates to a preparation method of an integrated flexible solid-state battery with ion and electron double-conducting channels. By combining atomized active particles with carbon nanotube macro-tubular continuum, a flexible thin film electrode is formed through layer-by-layer assembly and is used as an electron three-dimensional framework, and then a solid-state polymer electrolyte is fully combined into the electrode in a permeation and in-situ polymerization mode. Without adding additional binders and conductive agents, the complicated solid-solid interface in the solid-state battery electrode is simplified, the three-dimensional carbon nanotube network framework enables the electrode to have certain mechanical strength and continuous electron conduction path, and the in-situ polymerization of the high ionic conductive electrolyte also solves the ion conduction problem. The novel composite electrode has good interface contact, simple and stable interface structure and continuous charge conduction channel. The application can make the solid-state battery have higher rate performance, high safety, high energy density and flexibility, and the production method is simple and fast, and has the prospect of commercial scale application.

The application belongs to the technical field of lithium ion batteries, and particularly relates to an electrolyte and a battery comprising the electrolyte. The electrolyte provided by the application is added with a first additive imide phosphate compound, which has a lower LUMO and a higher HOMO, is helpful to stable film formation on the positive and negative electrode surfaces, avoids the side reaction between the positive and negative electrode materials and the electrolyte, and generates an interface film rich in N and P. The interface film has high thermodynamic stability and high ionic conductance, is beneficial to improving the high-temperature cycle performance and low-temperature performance of the battery under high voltage, and the phosphate groups in the phosphate groups can capture H· / OH· free radicals in the electrolyte, inhibit the diffusion reaction of free radicals in the battery combustion process. Meanwhile, the phosphate groups can also combine with Lewis acids such as PF5 in the electrolyte, so that the flame retardance of the electrolyte is further improved, and a battery with good thermal stability, i.e., safety performance, is obtained.

Provided is a charging roll for electrophotographic equipment with which any increase in resistance and any bleeding of ionic electroconductive agent while energization persists can be minimized. A charging roll 10 for electrophotographic equipment, the charging roll 10 comprising a shaft body 12 and an elastic layer 14 that is formed on the outer peripheral surface of the shaft body 12, the elastic layer 14 being a crosslinked article of a rubber composition containing the following components (a) to (e). (a) One or more selected from hydrin rubber and nitrile rubber, (b) a crosslinking agent, (c) an ionic electroconductive agent, (d) one or more selected from piperidinyloxy radical compounds and phenolic antioxidants, and (e) one or more selected from salts of cyclic amidine compounds and thiophthalimide compounds.