356results about "Electrolyte layer coating" patented technology

Preparation of anhydrous lithium sulfide (Li2S) purified suitably for applications in advanced batteries, and, in particular, for synthesis of solid electrolytes based on Li2S, including sulfide solid electrolytes of the type that may be described as crystalline (e.g., polycrystalline), amorphous (e.g., glass) and combinations thereof, such as sulfide glass-ceramic solid electrolyte materials.

A lithium ion-conductive solid electrolyte including a freestanding inorganic vitreous sheet of sulfide-based lithium ion conducting glass is capable of high performance in a lithium metal battery by providing a high degree of lithium ion conductivity while being highly resistant to the initiation and / or propagation of lithium dendrites. Such an electrolyte is also itself manufacturable, and readily adaptable for battery cell and cell component manufacture, in a cost-effective, scalable manner. An automated machine based system, apparatus and methods assessing and inspecting the quality of such vitreous solid electrolyte sheets, electrode sub-assemblies and lithium electrode assemblies can be based on spectrophotometry and can be performed inline with fabricating the sheet or web (e.g., inline with drawing of the vitreous Li ion conducting glass) and / or with the manufacturing of associated electrode sub-assemblies and lithium electrode assemblies and battery cells.

The invention relates to the technical field of coating machines, in particular to multi-layer coating equipment and a coating method. The multi-layer coating equipment comprises a base, an unwinding mechanism, a winding mechanism, a plurality of coating mechanisms and a plurality of drying mechanisms, the unwinding mechanism, the winding mechanism, the coating mechanisms and the drying mechanisms are all mounted on the base, and the coating mechanisms and the drying mechanisms are alternately arranged at intervals; a base band released by the unwinding mechanism penetrates through the coating mechanism and the drying mechanism and then is wound on the winding mechanism, the coating mechanism is used for coating slurry on the base band and rolling a coating pattern on the base band, and the drying mechanism is used for drying the base band coated by the coating mechanism. According to the multi-layer coating equipment, after the base band is subjected to coating treatment through the multiple coating mechanisms, each coating mechanism can roll out the corresponding coating pattern on the base band, the multiple coating patterns can be distributed on the base band at intervals and can also be distributed on the base band in a stacked mode, and therefore the multi-layer coating equipment can be used for manufacturing different types of electrode materials.

The invention discloses a preparation method of an in-situ solid-state battery structure, which comprises the following steps: 1, mixing a polymer monomer, an initiator and an electrolyte to obtain an in-situ solid-state electrolyte precursor I, and mixing the in-situ solid-state electrolyte precursor I with an inorganic solid-state electrolyte to obtain an in-situ solid-state electrolyte precursor II; an in-situ solid electrolyte precursor II and an in-situ solid electrolyte precursor III are obtained; 2, preparing a positive plate and a negative plate; 3, coating the in-situ solid electrolyte precursor I on the surfaces of the positive plate and the negative plate, standing, curing and rolling to obtain a cured positive electrode and a cured negative electrode; 4, coating the surface of the cured positive electrode with the in-situ solid electrolyte precursor II, coating the surface of the cured negative electrode with the in-situ solid electrolyte precursor III, and standing and curing to obtain a composite positive electrode and a composite negative electrode; and 5, the composite positive electrode and the composite negative electrode are bonded and then cured. The preparation method effectively increases the contact area between the in-situ solid electrolyte and the positive and negative plates, improves the ion conduction efficiency, and is suitable for the technical field of battery preparation.

A cell for use in an electrochemical cell, that includes a positive electrode, a negative electrode, an electrolyte, and a separator in the form of a zeolite-based material comprising one or more naturally occurring or synthetically synthesized zeolites applied directly to at least one of the positive electrode and the negative electrode. The positive electrode configured so that non-reactive metal ions are reversibly extracted there from and inserted therein. The negative electrode configured to reversibly accept and release the non-reactive metal ions. The electrolyte positioned between and in contact with the negative electrode and the positive electrode, such that the electrolyte supports a reversible flow of the non-reactive metal ions between the positive electrode and the negative electrode. The separator being configured to electrically isolate the positive electrode from the negative electrode, while being permeable to the reversible flow of the non-reactive metal ions there through.

The invention relates to the technical field of battery design and manufacturing processes, in particular to an all-solid-state battery based on a 3D printing technology and a preparation method, and the all-solid-state battery comprises a positive electrode, a negative electrode, a solid electrolyte and a current collector; a positive electrode is composed of lithium cobalt nickel manganese oxide and the like, and a novel conductive agent and a multifunctional modifier are added; the negative electrode is made of a silicon-tin-carbon composite material and the like; the solid electrolyte contains components such as lithium, lanthanum, zirconium, tantalum and oxygen; the current collector is alloy foil and is plated with a specific film, and the material proportion and characteristics of all parts are clear. The unique material formula improves the battery performance, and enhances the energy density and cycle stability; the structure is accurately controlled through the 3D printing technology, and the production efficiency and the battery consistency are improved; the solid electrolyte guarantees safety, reduces hidden dangers, and is beneficial to wide application in multiple fields.

The disclosure proposes a positive electrode material, a preparation method thereof, and applications. The positive electrode material at least includes a positive electrode active material including LiNi0.5Mn1.5O4; and a coating layer coated on the positive electrode active material, wherein the coating layer includes a halide solid electrolyte, and the chemical formula of the halide solid electrolyte is Liz+aZr1-aFeaCl6-x-yBrxIy, in which 0<a≤0.5; x=0 to 6, y=0 to 6, x+y≤6. The disclosure proposes the positive electrode material, the preparation method thereof, and the applications, which can improve the rate performance and the cycle performance of a lithium-ion battery.

A solid-state battery having two or more stacked battery elements, each battery element including one or more battery constituent units in which a positive electrode layer and a negative electrode layer oppose each other with a solid electrolyte layer between the positive electrode layer and the negative electrode layer; and an insulating layer interposed between adjacent battery elements of the two or more stacked battery elements, wherein at least one end portion of the insulating layer has a thickness greater than a thickness of a central portion of the insulating layer in a sectional view thereof.

A rotatable drum is provided for supporting a substrate. The rotatable drum includes a curved drum surface for supporting the substrate. The curved drum surface includes a dielectric portion and an electrode coupled to a power source. The electrode is electrically coupled to the curved drum surface and capable of chucking and dechucking the substrate from the curved drum surface at one or more circumferential segments of the curved drum surface.

According to exemplary embodiments, a method for generating a roll map is provided. The method comprises the steps of: collecting measurement data including measurement values of an electrode sheet on the basis of a measurement signal generated by measuring the electrode sheet, the electrode sheet including a plurality of coated part lanes and a plurality of uncoated parts; and processing the measurement data such that the plurality of coated part lanes are differentiated.

An lithium-sulfur battery including an anode structure, a cathode, a separator, and an electrolyte is provided. The electrolyte may be dispersed throughout the cathode and in contact with the anode. An artificial solid-electrolyte interphase (A-SEI) may form on the anode, and a protective layer (e.g., that may be pinhole free) may form within and / or on the A-SEI to face the cathode. The protective layer may be formed from carbonaceous materials, which may provide exposed carbon atoms grafted with one or more ions, such as fluorine anions (F−), uniformly dispersed throughout the protective layer. In addition, the protective layer may include polymeric chains positioned generally opposite to each other. The polymeric chains may cross-link upon exposure to ultraviolet (UV) energetic radiation to form a three-dimensional (3D) lattice having a defined cross-linking density suitable to trap one or more anions during discharge-charge operational cycling of the lithium-sulfur battery.

This application provides a solid electrolyte, a preparation method thereof, a secondary battery, a battery module, a battery pack, and an electric apparatus. The solid electrolyte includes a compact layer and a porous layer located on at least one side of the compact layer, where a porosity of the porous layer is greater than a porosity of the compact layer. The porous layer helps to improve the wettability of an interface between the solid electrolyte and a positive electrode plate / negative electrode plate, and also facilitates filling of positive and negative electrode active substances into pores, thereby reducing interface resistance of a battery and improving rate performance and low-temperature performance of the battery.

An all-solid-state battery includes: a solid electrolyte layer; and a plurality of electrode layers disposed in a stacking direction with the solid electrolyte layer interposed between the plurality of electrode layers. At least one of the plurality of electrode layers includes: a current collector in which an active material accommodating portion is disposed; and an electrode active material layer disposed in the active material accommodating portion and also disposed at at least one surface of the current collector. The active material accommodating portion may include a plurality of slits provided in the current collector.

A control factor calculation apparatus according to an embodiment disclosed herein includes a data obtaining unit configured to periodically obtain data including a slurry loading amount and a slurry flow rate and a processor configured to learn a correlation between the slurry loading amount and the slurry flow rate, based on the data, in which the processor is further configured to calculate a slurry flow rate control value for achieving a target slurry loading amount based on the correlation.

The present invention relates to a method for manufacturing cells for secondary batteries, and this method is - The first operation involves rewinding the separator film (3), - A second operation involves depositing the first electrode (1) onto the separator film (3), -A third operation in which the first horizontal edge (4) and the first vertical edge (6) of the first electrode (1) are held on the separator film (3) using the first holding element (8), and the second horizontal edge (5) on the opposite side of the first horizontal edge (4) and the first vertical edge (6) of the first electrode (1) is also held using the second holding element (10), - A fourth operation involves unwinding the separator film (3) to cover the first electrode (1), Includes.

To provide a solid-state battery, capable of reducing a lamination space factor of a solid electrolyte as well as reducing resistivity.SOLUTION: A solid-state battery contains a lamination body formed by alternately laminating a positive electrode plate and a negative electrode plate, and a solid electrolyte layer is formed in a lamination surface of any one of the positive electrode plate and the negative electrode plate. In at least one of the positive electrode plate and the negative electrode plate, the solid electrolyte layer is formed in at least one part of an end surface. An area of the lamination surface of one electrode plate of the positive electrode plate and the negative electrode plate is larger than that of the lamination surface of the other electrode plate of the positive electrode plate and the negative electrode plate, and an external edge of the one electrode plate is arranged on the side outer than the external edge of the other electrode plate. In the one electrode plate, it is preferable that the solid electrolyte layer be formed in at least one of the end surface.SELECTED DRAWING: Figure 2

Provided are: a sheet for an electrode, the sheet comprising an active material layer precursor layer containing an inorganic solid electrolyte, an active material, and a polymer binder, wherein the active material layer precursor layer contains at most 3 mass% of the polymer binder, an exhibits a filling rate of 35-50%; a method for producing the same; an all-solid secondary battery; and methods for producing an electrode sheet and an all-solid secondary battery using said sheet for an electrode.

The invention relates to an all-solid-state battery, a method for manufacturing the same, and a conductive coated current collector. A method for manufacturing an all-solid-state battery includes the following steps. And a step for forming a conductive first coating layer in the first region. And forming a second coating layer adjacent to the first coating layer in the second region. The second coating layer is easier to peel compared to the first coating layer. And a step for continuously forming a first electrode layer across the surfaces of the first and second coating layers. And a step for forming a solid electrolyte layer on the surface of the first electrode layer. And a step for forming a second electrode layer on the surface of the solid electrolyte layer. And a step for hot-pressing the obtained current collector-electrode composite. And a step for removing the second coating layer from the first current collector together with the layers thereon. And a step for laminating a second current collector on the surface of the second electrode layer.

The present invention provides a gravure liquid injection process, which belongs to the technical field of lithium batteries. The gravure liquid injection process provided by the present invention comprises the following steps: S1, adding additives to the electrolyte in advance to increase the viscosity of the electrolyte to more than 4000 pa.s; S2, adding two liquid injection and coating stations on a winding machine or a stacking machine, and arranging a gravure coating device for coating the positive electrode sheet or the negative electrode sheet with electrode liquid on the corresponding station; S3, the positive electrode sheet and the negative electrode sheet are double-sided gravure coated through the corresponding gravure coating device; S4, the electrode sheet after coating is wound or stacked. The present invention can double-sidedly coat the electrode sheet during the winding or stacking process, greatly reducing the cumbersomeness of subsequent liquid injection in the battery shell, optimizing the lithium battery production process, and improving the stability of the lithium battery production quality.

The invention relates to a method for manufacturing a cell of a secondary battery, comprising:-a first operation of unwinding a separator (3),-a second operation of depositing a first electrode (1) on the separator (3),-a third operation of holding a first transverse edge (4) and a first longitudinal edge (6) of the first electrode (1) on the separator (3) by means of a first holding element (8), and holding a second lateral edge (5) and a first longitudinal edge (6) opposite the first lateral edge (4) of the first electrode (1) by means of a second holding element (10), a fourth operation of unwinding the diaphragm (3) to cover the first electrode (1).

Provided is a positive electrode which is for an all-solid lithium-ion secondary battery, and can reduce the internal resistance of the all-solid-state lithium-ion secondary battery. The positive electrode is provided with an active material layer including a positive electrode active material and a solid electrolyte material. The positive electrode active material comprises secondary particles formed by agglomerating a plurality of primary particles each containing a lithium transition metal composite oxide. The smoothness of the secondary particles is greater than 0.73 and the circularity of the secondary particles is greater than 0.83.

To provide a solid-state battery having high capacity retention.SOLUTION: A solid-state battery according to the present disclosure includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer in this order. The negative electrode layer includes a negative electrode current collector, and a negative electrode active material layer, in this order, in a direction from the negative electrode layer toward a side of the solid electrolyte layer. When the solid-state battery is fully charged, the negative electrode active material layer has a Li layer, a Li-Mg layer or a Li-Mg-X layer, and a Li-X layer, in this order, in the direction. The X is at least one selected from the group consisting of Sn, Zn, and Al. The Li-X layer is formed on a surface of the solid electrolyte layer.SELECTED DRAWING: None

Provided is an intermediate product of a solid electrolyte. The intermediate product of a solid electrolyte may comprise: a compound in which a cation including thiophenium or thiazolium and an anion including fluorohydrogenate are bound, and a solvent in which the compound is mixed.

A cathode material 10 of the present disclosure includes a cathode active material 100, a coating layer 104 containing a first solid electrolyte 101, and coating at least part of a surface of the cathode active material 100, and a second solid electrolyte 102. The first solid electrolyte 101 contains Li, Al, and X, and does not contain Ti. X is at least one selected from the group consisting of F, Cl, Br, and I. The ratio of the volume of the first solid electrolyte 101 to the total volume of the first solid electrolyte 101 and the cathode active material 100 is greater than or equal to 1.0% and less than or equal to 16.0%.

A cathode material of the present disclosure includes a cathode active material, a coating layer containing a first solid electrolyte, and coating at least part of a surface of the cathode active material, and a second solid electrolyte. The first solid electrolyte contains Li, Al, and X, and does not contain Ti. X is at least one selected from the group consisting of F, Cl, Br, and I. The ratio of the volume of the first solid electrolyte to the total volume of the first solid electrolyte and the cathode active material is greater than or equal to 5.6% and less than or equal to 8.1%.

Disclosed are a method for producing an electrode for a galvanic cell, an electrode for a galvanic cell, a galvanic cell, and uses of the galvanic cell. The method comprises: applying a separator membrane to a planar electrode such that an intermediate space is formed between the planar electrode and the separator membrane; subsequently applying a liquid comprising a particular material to the separator membrane, wherein the liquid comprising material penetrates, by way of capillary forces, at least into the pores of the separator membrane, into the intermediate space between the planar electrode and the separator membrane and into pores of the planar electrode, wherein the liquid is subsequently evaporated. The method makes it easily and inexpensively possible to provide an electrode which exhibits a high energy density at the cell level and high chemical, electrochemical and mechanical stability, and which thus exhibits high cycle stability and allows high operating currents.

The present invention relates to an anode material for a lithium secondary cell, a precursor for the anode material, a lithium secondary cell, and a manufacturing method of the anode material. A precursor for the anode material according to an aspect of the present invention is an anode material precursor containing graphite, wherein the graphite may have peaks in particle size ranges of 2-8 µm and 10-25 µm, respectively, and a particle size distribution with a D50 of 6-23 µm.

A cathode material can include a substrate including an active cathode material and a coating overlying at least a portion of the substrate. The coating material may include CFX and M2CO3, wherein M may include an alkali metal. In a particular embodiment, the coating may include MF. In another particular embodiment, M may include Li.

Disclosed are a method for producing an electrode for a galvanic cell, an electrode for a galvanic cell, a galvanic cell, and uses of the galvanic cell. The method comprises: applying a separator membrane to a planar electrode such that an intermediate space is formed between the planar electrode and the separator membrane; subsequently applying a liquid comprising a particular material to the separator membrane, wherein the liquid comprising material penetrates, by way of capillary forces, at least into the pores of the separator membrane, into the intermediate space between the planar electrode and the separator membrane and into pores of the planar electrode, wherein the liquid is subsequently evaporated. The method makes it easily and inexpensively possible to provide an electrode which exhibits a high energy density at the cell level and high chemical, electrochemical and mechanical stability, exhibits high cycle stability and allows high operating currents.

To provide a coated active material that can suppress an increase in battery resistance.SOLUTION: A coated active material includes an electrode active material and a coating layer that coats the electrode active material, and the coating layer contains an oxide solid electrolyte that includes Li, P, and O elements, and the particle diameter (D50) of the coated active material is 5.5 μm or less.SELECTED DRAWING: Figure 1