683 results about "Composite electrolyte" patented technology

A flexible solid electrolyte includes a first inorganic protective layer, an inorganic-organic composite electrolyte layer including an inorganic component and an organic component, and a second inorganic protective layer, where the inorganic-organic composite electrolyte layer is disposed between the first inorganic protective layer and the second inorganic protective layer, and the inorganic component and the organic component collectively form a continuous ion conducting path.

Provided is a lithium ion conductive composite electrolyte that can prevent leakage of electrolyte solution, and that have excellent cycle performance and lithium ion conductivity, and a lithium ion secondary battery. A lithium ion conductive composite electrolyte 1 is formed so that a lithium ion conductive polymer gel electrolyte is held in a porous body 2 formed from lithium ion conductive inorganic solid electrolyte particles and an organic polymer. The lithium ion conductive inorganic solid electrolyte particles are formed from a composite metal oxide that has a garnet structure, and is represented by the chemical formula Li7−yLa3−xAxZr2−yMyO12 (wherein 0≦x 3, 0≦y≦2, A is one of Y, Nd, Sm, and Gd, and M is Nb or Ta). A lithium ion secondary battery 11 includes the lithium ion conductive composite electrolyte 1 between a positive electrode 12 and a negative electrode 13.

A solid composite electrolyte membrane for use in a lithium battery is provided which exhibits a conductivity ranging from about 10−4 S cm−1 to about 10−3 S cm−1 at ambient temperature. The membrane is formed by providing a glass or glass-ceramic powder formed from a mixture of lithium carbonate, alumina, titanium dioxide, and ammonium dihydrogen phosphate. The powder is mixed with a conditioning agent and at least one solvent, followed by the addition of a binder and one or more plasticizers. The resulting slurry is cast into a tape which is then subjected to a binder burn-off and sintering process to form the membrane. The resulting membrane may be a glass-ceramic composite having a porosity ranging from 0 to 50%, or the membrane may be further infiltrated with a polymer to form a water-impermeable polymeric-ceramic composite membrane.

Ionically conducting, redox active additive composite electrolytes are disclosed. The electrolytes include an ionically conductive component and a redox active additive. The ionically conductive component may be an ionically conductive material such as an ionically conductive polymer, ionically conducting glass-ceramic, ionically conductive ceramic, and mixtures thereof. Electrical energy storage devices that employ the ionically conducting, redox active additive composite electrolytes also are disclosed

The invention relates to organic-inorganic all-solid-state composite electrolyte as well as preparation and application methods thereof, belonging to the field of lithium ion batteries. According to the organic-inorganic all-solid-state composite electrolyte, a highly-ordered three-dimensional connection network skeleton is formed by an inorganic fast lithium ion conductor, and a three-dimensional connection network is filled with a polymer and lithium salt. The organic-inorganic all-solid-state composite electrolyte which is flexible and has a controllable three-dimensional connection network structure is prepared. The electrolyte is high in lithium ion conductivity, wide in electrochemical window, good in mechanical property and stable to lithium metal. A lithium ion secondary battery assembled by a composite electrolyte membrane prepared by the method is high in capacity, stable in cycle performance, low in interface impedance and good in interface stability.

Thin film composite electrolyte structures are disclosed that are preferably ionically conductive but not electronically conductive and are therefore suitable for use in electrochemical cells, such as secondary batteries based on sodium and sulfur. Vehicles including the electrochemical cells are also disclosed.

The invention belongs to the field of feeds, and particularly relates to a six percent-premix for lactating sows and a wheat-type daily ration prepared from the six percent-premix. The premix comprises multivitamins, composite trace elements, DL-methionine, lysine, threonine, L-arginine, valine, composite electrolyte, compound enzyme, 5000 IU of phytase, functional additives, feed attractants, calcium hydrogen phosphate, stone powder, salt, choline, antioxidants and defatted rice bran. On the whole, the daily ration for the lactating sows is capable of protecting the development of mammary glands of the sows, ensuring plentiful milk with high quality in the lactation period of the sows and increasing the survival rate of suckling piglets, and enables the piglets to have higher weaning weight.

A composite electrolyte including a polymeric ionic liquid; a plurality of inorganic particles; and an organic electrolyte.

A composite electrolyte membrane of the present invention includes a porous body composed of an inorganic substance and an electrolyte material. The porous body includes therein plural spherical pores in which a diameter is substantially equal, and communicating ports each allowing the spherical pores adjacent to each other to communicate with each other. The electrolyte material is provided on the spherical pores and the communicating ports, has proton conductivity, and is composed of a hydrocarbon polymer. The proton-conductive composite electrolyte membrane has excellent ion conductivity, high heat resistance, and restricted swelling when being hydrous, and is capable of being produced at low cost.

To provide a polymer electrolyte membrane having excellent size stability and excellent mechanical strength that can sufficiently prevent the size change due to the swelling condition, the displacement of the polymer electrolyte membrane and the formation of wrinkles during the production of the polymer electrolyte fuel cell, and can prevent damage during the production and operation of the polymer electrolyte fuel cell. In a composite electrolyte membrane including a porous reinforcement layer made of a resin and an electrolyte layer made of a polymer electrolyte and laminated at least one main surface of the reinforcement layer, the direction having a high tensile modulus of elasticity in the reinforcement layer is substantially corresponded with the direction having a high rate of size change in the electrolyte layer.

The invention discloses an organic-inorganic composite electrolyte membrane having a double layer structure including a first layer and a second layer, wherein each of the first layer and the second layer is prepared from slurry comprising the following same components: an inorganic solid electrolyte, lithium salt, a film forming agent, a conductive lithium ion polymer, a plasticizer, and a solvent; herein, the content of inorganic solid electrolyte in the first layer is higher than that in the second layer, and the content of conductive lithium ion polymer in the first layer is less than thatin the second layer. The invention also discloses a battery having the organic-inorganic composite electrolyte membrane. The membrane has good flexibility and high conductivity, can satisfy differentdemands of a cathode and an anode in a lithium ion battery at the same time, can inhibit growth of lithium dendrites, and improves comprehensive performance of the battery.

A ceramic-ceramic nanocomposite electrolyte having enhanced conductivity is provided. The nancomposite electrolyte is formed from chemically stabilized zirconia such as yttria stabilized zirconia or scandia stabilized zirconia and a heterogeneous ceramic dopant material such as Al2O3, TiO2, MgO, BN, or Si3N4 The nanocomposite electrolyte is formed by doping the chemically stabilized zirconia with the ceramic dopant material and pressing and sintering the composite. The resulting electrolyte has a bulk conductivity of from about 0.10 to about 0.50 S / cm at about 600° C. to about 900° C. and may be incorporated into a solid oxide fuel cell.

The invention discloses a polymer solid-state electrolyte material and a preparation method therefor. The polymer solid-state electrolyte material is an organic-inorganic hybridized and crosslinked polymer solid-state electrolyte material which is prepared by performing ultraviolet light irradiation and crosslinking on reaction raw materials, wherein the reaction raw materials comprise silicon dioxide nanoparticles grafted with sulfydryl on the surface and double-band end-capped polyethylene glycol at the mass ratio of 1 / 2 to 1 / 20; and in addition, the content of sulfydryl component in the silicon dioxide nanoparticles grafted with sulfydryl on the surface is 1-50wt.%. By means of improvement of the whole technological process, the reaction conditions in each step and the like in the key preparation process, the organic-inorganic hybridized and crosslinked polymer solid-state electrolyte material is correspondingly formed; and compared with the prior art, the ionic electrical conductivity and mechanical performance of the composite electrolyte can be improved at the same time.

An ion-conducting composite electrolyte is provided comprising path-engineered ion-conducting ceramic electrolyte particles and a solid polymeric matrix. The path-engineered particles are characterized by an anisotropic crystalline structure and the ionic conductivity of the crystalline structure in a preferred conductivity direction H associated with one of the crystal planes of the path-engineered particle is larger than the ionic conductivity of the crystalline structure in a reduced conductivity direction L associated with another of the crystal planes of the path-engineered particle. The path-engineered particles are sized and positioned in the polymeric matrix such that a majority of the path-engineered particles breach both of the opposite major faces of the matrix body and are oriented in the polymeric matrix such that the preferred conductivity direction H is more closely aligned with a minimum path length spanning a thickness of the matrix body than is the reduced conductivity direction L.

The invention is a thin film composite solid (and a means for making such) suitable for use as an electrolyte, having a first layer of a dense, non-porous conductive material; a second layer of a porous ionic conductive material; and a third layer of a dense non-porous conductive material, wherein the second layer has a Coefficient of thermal expansion within 5% of the coefficient of thermal expansion of the first and third layers.

The invention provides a polymer electrolyte, its preparation method and a battery comprising the polymer electrolyte. The polymer electrolyte contains a stance phase and an ionic conductive phase adsorbed on the stance phase. The stance phase is an electrostatic spinning fiber film, and the ionic conductive phase includes a polymer able to undergo complexation with lithium ions and a lithium salt. The polymer able to undergo complexation with lithium ions contains an ether oxygen functional group. A bi-continuous phase composite electrolyte film characterized by high mechanical strength, good flexibility, high ionic conductivity, good thermal stability, high interface stability and good electrochemical stability can be obtained, and the preparation process is simple and is low in cost. The prepared material can be widely used in mobile phones, notebook computers and other mobile devices, as well as electric vehicles and other fields, and has strong practical significance to development of the battery industry. The polymer battery involved in the invention is different from liquid or gel state batteries, is free of plasticizer, does not cause leakage and other potential safety hazards, so that it can be used in high temperature environment, and does not have combustion, explosion and other hidden dangers.

The invention discloses an organic / inorganic composite electrolyte and a preparation method thereof. The organic / inorganic composite electrolyte is obtained by dispersing a lithium salt and a modified inorganic solid electrolyte into a polymer in a mixing manner, wherein the polymer contains an ethylene oxide repeating unit. The modification of the inorganic solid electrolyte is carried out for the first time; a polymer electrolyte and the inorganic electrolyte are effectively and evenly composited, so that the organic / inorganic composite electrolyte material is obtained. The dispersion of the inorganic solid electrolyte in the polymer is improved by the modification of the inorganic solid electrolyte, so that the adverse effect that the inorganic solid electrolyte is automatically gathered is avoided. The organic / inorganic composite electrolyte material obtained according to the preparation method has the advantages of the polymer electrolyte and the inorganic electrolyte, so that the comprehensive performance of the organic / inorganic composite electrolyte material is obviously improved. The organic / inorganic composite electrolyte material has practical value and can be popularized in lithium ion secondary batteries.

The invention discloses a composite electrolyte membrane and a preparation method and application thereof. The composite electrolyte membrane is a gel-state composite electrolyte membrane or a solid-state composite electrolyte membrane. The preparation method of the composite electrolyte membrane comprises the following steps of adding a macromolecular polymer material into an organic solvent, and performing stirring to obtain a macromolecular polymer material solution; and adding inertia inorganic solid filler and / or active inorganic solid filler, a lithium salt and an ionic liquid, and performing ultrasonic dispersion, stirring, standing and drying to obtain the composite electrolyte membrane. The composite electrolyte membrane has the advantages of high thermal stability, high electrochemical stability, good ionic conductivity, good interface adhesion tightness and the like, is easy to form and can be completely in contact with an electrode material; the preparation method has the advantages of simple process and the like, continuous production can be achieved; and the composite electrolyte membrane can be applied to a solid-state battery, and the solid-state battery shows relatively good cycle stability and rate performance.

An adhesive layer 3 is disposed between a carbon particle 2 and a catalyst substance 1 of a catalyst-supporting particle for a fuel cell containing the carbon particle 2 and the catalyst substance 1. Thereby, the catalyst-supporting particle for fuel cell can be obtained in which a contact resistance between the catalyst substance and the carbon particle supporting the same is lower, and the aggregation of the catalyst substance is suppressed. A catalyst electrode for a fuel cell and the fuel cell using the above particle have a higher output power and an excellent durability.

The invention discloses a preparation method of a lithium lanthanum zirconium oxide nanometer fiber, a preparation method of a composite film and solid battery application. Filamentation is carried out on a lithium lanthanum zirconium oxide precursor solution by using a jet airflow and a propelling plant, and the lithium lanthanum zirconium oxide nanometer fiber is obtained after heat treatment is carried out on the collected lithium lanthanum zirconium oxide fiber precursor. Superfine lithium lanthanum zirconium oxide nanometer powder or a lithium lanthanum zirconium oxide nanometer fiber film with certain mechanical property is obtained respectively by regulating the technological parameters and heat treatment temperature of an airflow spinning process. The method is simple in operation and low in cost, and can realize commercialized production. The composite film of the lithium lanthanum zirconium oxide fiber film and polymer provides a continuous lithium ion passage, so that higher ionic conductivity can be provided. The lithium lanthanum zirconium oxide nanometer fiber powder is used for composite ceramic films or composite electrolytes, blockage for membrane holes can be avoided, and higher ionic conductivity can be provided. A solid battery or lithium-ion battery prepared by using the lanthanum zirconium oxide nanometer fiber film or powder is stable in cycle performance, high in rate capability, low in interface impedance and high in stability.

A composite electrolyte including a polymeric ionic liquid; and an oligomeric electrolyte, wherein the oligomeric electrolyte includes an oligomer.

The invention relates to a novel ordering membrane electrode and a preparation method and application thereof. The membrane electrode consists of a composite electrolyte membrane and a catalyst layer. The composite electrolyte membrane is a proton exchange membrane modified by Pd metal or Pd-Cu alloy or Pd-Ag alloy or Pd-Ni alloy or Pd-Ag-Ni alloy, the catalyst layer is an ordering catalyst layer which comprises a composite electrolyte membrane metal layer consists of conducting polymer nanowires distributed on the surface in an ordering array mode and Nafion self-assembled Pt-PDDA catalyst adhered to the surfaces of the conducting polymer nanowires. The novel ordering membrane electrode has the advantages of being low in Pt bearing capacity, high in utilization rate and the like and can effectively reduce the cost of a fuel-cell catalyst. In addition, the novel ordering membrane electrode can enhance mass transfer of fuel in the catalyst layer while effectively reducing liquid fuel penetration and accordingly improves the fuel utilization rate.

The invention discloses a preparation method of a flexible quick-charging lithium metal battery and belongs to the technical field of lithium batteries. The method comprises the steps of firstly mixing an organic solution of graphene and a carbon nanotube and a binder, and coating the surface of a current collector to prepare a self-supporting pole piece; compounding the self-supporting pole piece and a lithium metal to prepare a lithium-graphene composite electrode or a lithium-carbon nanotube composite electrode or lithium-graphene-carbon nanotube composite electrode; and adopting flexible lithium iron phosphate paper as a positive electrode, composite electrolyte as a diaphragm and the composite electrode as a negative electrode, and assembling to obtain the flexible quick-charging lithium metal battery. The method is simple in operation and significant in effect. The graphene and carbon nanotube skeleton has a high specific surface area, and is capable of effectively reducing the local current density, endowing the electrode with flexible characteristics and achieving fast ion transportation; and the graphene and carbon nanotube skeleton is capable of promoting uniform lithium deposition and inhibiting growth of lithium dendrites, thereby achieving the flexible quick-charging lithium metal battery.

The invention provides a total temperature-range lithium ion battery. The total temperature-range lithium ion battery comprises a multi-tab anode piece having a compound multi-layer coating structure, a multi-tab cathode piece having a compound multi-layer coating structure, a high temperature-resistant diaphragm and a high / low temperature composite electrolyte. Each one of two sides of a part 4 on positive and negative current collectors is orderly coated with a rapid charging / discharging layer 1 (1a, 1b), a transition layer 2 (2a, 2b) and a slow charging / discharging layer 3 (3a, 3b). Through the structure, the total temperature-range lithium ion battery has rapid charging / discharging performances without battery energy density reduction. Through the multi-tab structure, the high temperature-resistant diaphragm and the high / low temperature composite electrolyte, battery ohmic resistance and electrochemical interface impedance are reduced and battery safety is improved. The total temperature-range lithium ion battery can realize normal charging and discharging at a temperature of -40 to 75 DEG C and has excellent low-temperature high-magnification characteristics and high-temperature and long-life performances.

Provided is a composite electrolyte structure and lithium metal battery including the same. The composite electrolyte structure includes: a protective layer having a Young's modulus of about 106 pascals or greater and including a first particle, the first particle including an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, wherein the particle inthe protective layer has a particle size of greater than 1 micrometer to about 100 micrometers; and a solid electrolyte layer including a second particle including an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, wherein the second particle has a particle size of greater than 1 micrometer to about 100 micrometers; wherein the first particle andthe second particle are the same or different, and wherein the protective layer is on the solid electrolyte layer.

A solid electrolyte includes: an ionic liquid; a lithium salt; an inorganic particle; and a polymer, wherein an amount of the ionic liquid is greater than or equal to about 33 parts by weight, based on 100 parts by weight of the polymer. Also a lithium battery including the solid electrolyte and a method of preparing a composite electrolyte membrane including the solid electrolyte.

The invention provides a flexible composite solid-state electrolyte, a full-solid-state lithium-ion battery and a preparation method thereof. The solid-phase mixing of a sulfide solid-state electrolyte or a modifier thereof, a thermoplastic polymer or a modifier thereof and lithium salt enables the composite solid-state electrolyte to have good flexibility while improving the dispersion uniformityand effective contact of each component. A halide, phosphate and / or an oxide are added to the sulfide material especially before the composition of the sulfide solid-state electrolyte and the polymersolid-state electrolyte, thereby providing a multi-dimensional channel for lithium ion transmission, increasing the disordered degree of lithium ion distribution, and being capable of further improving the lithium ion conductivity and electrochemical stability of the composite solid-state electrolyte. The flexible composite electrolyte has the advantages of high lithium conductivity at the room temperature, good electrochemical stability, easy preparation and processing, ability of being bent and cut and the like. The formed flexile full-solid-state battery has good mechanical performance andbending performance, and improves the cycle life and energy density.

A covalent crosslinking of ion-conducting materials via sulfonic acid groups can be applied to various low cost electrolyte membrane base materials for improved fuel cell performance metrics relative to such base material. This proposed approach is due, in part, to the observation that many aromatic and aliphatic polymer materials have significant potential as proton exchange membranes if a modification can increase their physical and chemical stabilities without sacrificing electrochemical performance or significantly increasing the material and production costs.