155results about "Solid electrolyte cells" patented technology

Provided is a battery including a positive electrode layer, a negative electrode layer, and an electrolyte layer disposed between the positive electrode layer and the negative electrode layer, in which the electrolyte layer contains a polymer having an ability to preferentially conduct metal ions, and a thickness ratio between the positive electrode layer and the electrolyte layer is 10:1 to 0.5:1.

Provided is an all solid state battery with excellent productivity. An all solid state battery according to the present invention relates to goals 3, 7, 11, and 12 of the SDGs.　An all solid state battery according to the present invention is characterized in comprising a laminated body provided with a positive electrode, a negative electrode, and a solid electrolyte sheet between the positive electrode and the negative electrode, wherein: the solid electrolyte sheet includes a porous base material and a solid electrolyte; the solid electrolyte is held in voids in the porous base material; the solid electrolyte covers both surfaces of the porous base material; in the solid electrolyte sheet, the porous base material is positioned offset to the positive electrode side in the thickness direction of the solid electrolyte sheet; and the thickness of the solid electrolyte sheet is not more than 50 μm.

This invention provides a fully open, long-endurance Mars battery and its fabrication method. The Mars battery comprises a vertical serpentine cell, an insertable anode current collector, a mesh cathode current collector, and a dustproof and breathable membrane. The fabrication scheme is as follows: preparation and assembly of the serpentine tubular solid electrolyte, preparation and coating of a gas diffusion and gas reaction dual-functional layer, preparation and filling of a Na / K-containing liquid alloy, integration of the rod-shaped anode and mesh cathode current collectors, and encapsulation with the dustproof and breathable membrane. The gas diffusion and gas reaction dual-functional layer is uniformly coated on the outside of the serpentine electrolyte tube, thus providing a 360° contact surface with the Martian atmosphere and exhibiting a fully open cathode characteristic, resulting in superior energy density compared to batteries with traditional single-sided gas reaction electrodes. This invention combines the advantages of solid electrolyte-based batteries—openness under the low atmospheric pressure of Mars—and the ability of the liquid alloy to fully wet the interface, coupled with the protection of the dustproof and breathable membrane, which will promote the design and development of long-endurance, all-weather Mars batteries.

The present technology relates to solid polymer electrolyte membranes comprising a heterogeneous mixture of at least two different polymers, one of which is a branched polyether having at least 3 branches. Methods for their manufacture, as well as electrochemical cells, batteries and electrochemical energy accumulators comprising them, and uses thereof are also described.

The present application relates to a method for manufacturing a solid electrolyte having a kesterite-type crystal structure, comprising: a mixing step of mixing raw materials so that lithium (Li), phosphorus (P), sulfur (S), oxygen (O), and halogen (X) satisfy the following formulas (11) to (14); and a heating step of heating a mixture obtained by the mixing step. 4.8 ≤ Li / P ≤ 5.3 … (11) 3.8 ≤ S / P ≤ 4.4 … (12) 0 < O / P ≤ 0.8 … (13) 1.0 < X / P ≤ 2.0 … (14) (Formula (11) is a molar ratio of Li to P, formula (12) is a molar ratio of S to P, formula (13) is a molar ratio of O to P, and formula (14) is a molar ratio of halogen (X) to P.)

The solid electrolyte material of the present disclosure consists of Li, La, O, and I. The battery 1000 of the present disclosure includes a positive electrode 201, a negative electrode 203, and an electrolyte layer 202. The electrolyte layer 202 is disposed between the positive electrode 201 and the negative electrode 203. At least one selected from the group consisting of the positive electrode 201, the negative electrode 203, and the electrolyte layer 202 contains the solid electrolyte material of the present disclosure.

The solid electrolyte material according to the present disclosure comprises Li, La, O, and I. The battery 1000 according to the present disclosure is provided with a positive electrode 201, a negative electrode 203, and an electrolyte layer 202. The electrolyte layer 202 is arranged between the positive electrode 201 and the negative electrode 203. At least one member selected from the group consisting of the positive electrode 201, the negative electrode 203, and the electrolyte layer 202 contains the solid electrolyte material according to the present disclosure.

The invention discloses a negative electrode material comprising an electrochemically active material and a coating layer on the surface thereof. The coating layer comprises a coating material based on a lithiophilic calcined organometallic structure comprising at least one lithiophilic metal and at least one at least partially calcined organic ligand. The invention further discloses the methods for manufacturing the electrode material, the electrodes comprising the material, and the use of the electrodes in electrochemical cells and batteries.

The present invention relates to an organoboron covalent organic framework impregnated with at least one salt selected from alkali metal salts and alkaline earth metal salts, the impregnated organoboron covalent organic framework being substantially free of organic solvents. The present invention also relates to a method for preparing the impregnated organoboron covalent organic framework, a use of the impregnated organoboron covalent organic framework as a solid electrolyte in an all-solid-state battery, and a separator for the all-solid-state battery, an electrode for the all-solid-state battery, and an all-solid-state battery, each comprising the impregnated organoboron covalent organic framework.

Provided is an all-solid-state battery with high productivity. An all-solid-state battery according to the present invention relates to Goals 3, 7, 11, and 12 of SDGs. An all-solid-state battery according to the present invention includes a stacked body provided with a positive electrode, a negative electrode, and a solid electrolyte sheet interposed between the positive electrode and the negative electrode, in which the solid electrolyte sheet contains a porous substrate and a solid electrolyte, the solid electrolyte is retained in pores of the porous substrate, both surfaces of the porous substrate are covered with the solid electrolyte, and in the solid electrolyte sheet, the porous substrate is located biased toward the positive electrode in a thickness direction of the solid electrolyte sheet, and the solid electrolyte sheet has a thickness of 50 µm or less.

A main object of the present disclosure is to provide a sulfide solid electrolyte with excellent water resistance. The present disclosure achieves the object by providing a sulfide solid electrolyte including a LGPS type crystal phase, and containing Li, Ge, P, and S, wherein: when an X-ray photoelectron spectroscopy measurement is conducted to a surface of the sulfide solid electrolyte, a proportion of Ge2+ with respect to total amount of Ge is 20% or more.

The invention provides a process for producing an anode for a lithium battery. The process comprises providing a current collector, depositing a layer of protective material on a surface of the current collector, depositing a layer of a lithiophilic material on a surface of the protected current collector, and depositing a layer of lithium material in molten form on the layer of lithiophilic material, the lithiophilic material thus reacting with the molten lithium material to form a layer of active anode material. The current collector and / or at least one other layer of the anode may comprise a continuous 3D structure. The protective material deposited on the current collector forms a barrier between the current collector and the lithium in the active anode material, the formation of cracks in the current collector thus being avoided.

An electrochemical device includes an electrode stacked body, and a porous metal layer interposed between the electrode stacked body and a conductive path of an exterior body. The electrode stacked body is pressed against the porous metal layer by a pressing member. The second invention relates to a method for producing an electrode stacked body including an electrode having an electrode mixture layer and a sheet-type current collector. The sheet-type current collector is formed by adjusting the amount of compression of a porous base material to satisfy s−t<a+b, where s represents the thickness of the porous base material before the compression, t represents the thickness of a portion of the porous base material after the compression, which faces the electrode mixture layer, a represents the thickness of the electrode mixture layer, and b represents the thickness of the isolation layer.

The present disclosure provides an electrolyte composition containing a polymer (A) having an anionic functional group and an alkali metal ion which is a counter cation of the anionic functional group, an ionic compound, and a nonionic organic solvent, the electrolyte composition having an energy at which lithium ions dissociate from the anionic functional group of 150 kcal / mol or more.

To provide an all-solid-state battery capable of suppressing the deterioration of characteristics due to moisture entering inside the all-solid-state battery, the all-solid-state battery of the present invention relating to the goals 12, 3, 7 and 11 of the SDGs.SOLUTION: An all-solid-state battery of the present invention is characterized in that an electrode laminate including a positive electrode, a negative electrode and a solid electrolyte layer disposed between the positive electrode and the negative electrode is enclosed inside an exterior body, and particles (A) of a sulfide-based solid electrolyte are disposed in a void part inside the exterior body. In the all-solid-state battery of the present invention, it is preferable that at least one of the positive electrode, the negative electrode and the solid electrolyte layer constituting the electrode laminate contains a sulfide-based solid electrolyte.SELECTED DRAWING: Figure 1

A flexible energy storage device with a glycerol-based gel electrolyte is provided. The flexible energy storage device can include a pair of electrodes separated by the gel electrolyte. The electrolytes can be in gel form, bendable and stretchable in a device. The gel electrolyte can include glycerol, redox-active molybdenum-containing ions, and a secondary ionic substance. The secondary ionic substance can include a salt. The gel electrolyte can have a density of 1.4 to 1.9 g / cm3 and an ionic conductivity of 2.3×10−4 to 3.2×10−4 Scm−1. The flexible energy storage device may retain greater than 95% of an unbent energy storage capacity when bent at an angle of 10 to 170°.

Provided is a solid-state battery in which the adhesion strength between an exterior portion and an external electrode is more sufficiently excellent. The present invention relates to a solid-state battery having a battery element, an outer packaging part that is present on the outer surface of the battery element, and an external electrode that is in contact with the outer packaging part, the outer packaging part comprising an oxide ceramic that contains Li (lithium); mg (magnesium); and one or more elements (M) selected from the group consisting of Group 4 and Group 5 elements. Bi (bismuth) is present between the exterior portion and the external electrode.

To provide a lithium primary battery and a manufacturing method thereof that extend the service life of the lithium primary battery and reduce its self-discharge.SOLUTION: A lithium primary battery includes a positive electrode sheet and a negative electrode sheet. The positive electrode sheet includes a positive electrode current collector, a positive electrode active coating disposed in order on at least one surface of the positive electrode current collector, and an electrolyte layer. The positive electrode active coating includes a positive electrode active material, a polymer solid electrolyte, an oxide solid electrolyte, and a lithium salt. The electrolyte layer includes a polymer solid electrolyte and a lithium salt.SELECTED DRAWING: None

A multi-layer current collector for an anodeless lithium-metal cells is described. The multi-layer current collector includes a current collector layer, a seed layer disposed on the current collector layer, and a protective shield layer disposed on the current collector layer. When incorporated into a Li-metal cell along with an electrolyte, charging of the cell leads to Li ion transferring through the shield layer, saturating the seed layer and ultimately forming a new Li metal layer between the shield layer and the lithiated seed layer. Discharging the cell reverses this process and results in disappearance of the Li metal layer and lithium passes back through the shield layer and into the electrolyte. The lithium in the seed layer also passes back into the electrolyte such that the current collector reverts to its initial structure prior to charging.

The microstructure of metallic and / or ceramic layers is controlled based on heating / cooling parameters of the fabrication process. The heating / cooling parameters can be selected to generate materials completely in the glass phase, having a hybrid construction (e.g., glass / crystalline) with different lattice microstructures, or having a polycrystalline microstructure with aligned crystal grains. Such materials with controlled microstructures can be used as solid-state electrolytes (SSEs), as cathodes in solid-state batteries, or as structural materials. When employed as SSEs, the glass phase portions of the fabricated materials can function as an interphase layer that blocks ion penetration and / or dendrite formation, while still retaining good ionic conductivity.

A solid electrolyte material according to the present disclosure includes a crystal phase that includes Li, Zr, Al and F. In an X-ray diffraction pattern for the solid electrolyte material obtained by X-ray structural analysis using Cu–Kα rays, has: at least two peaks in a first range of diffraction angles 2θ between 21.2° and 23.5°; at least two peaks in a second range of diffraction angles 2θ between 29.3° and 31.8°; and at least two peaks in a third range of diffraction angles 2θ between 37° and 40.3°.

Provided are a composite that can be suitably used as an electrolyte in polymer-based solid-state batteries, and various electrochemical devices using the composite. The composite includes a fluorine-containing elastomer and an alkali metal salt as essential components, wherein the fluorine-containing elastomer is an amorphous fluorine-containing elastomer having a glass transition temperature of 25° C. or less, and the composite has a volatile content of 0.1 mass % or less with respect to the entire composite.

The main objective of this disclosure is to provide a sulfide solid electrolyte with good water resistance. This disclosure addresses the aforementioned problem by providing a sulfide solid electrolyte containing Li, Ge, P, and S, and exhibiting an LGPS-type crystal phase. When X-ray photoelectron spectroscopy is performed on the surface of the aforementioned sulfide solid electrolyte, Ge... 2+ It accounts for more than 20% of the total amount of Ge.

The present disclosure provides an electrolyte composition containing a polymer having an ability to preferentially conduct alkali metal ions and an ionic compound, the ionic compound containing an anion having a donor number of 37 or less as measured with respect to a 1-ethyl-3-methylimidazolium salt.

Disclosed is a positive electrode for an all-solid-state secondary battery, the positive electrode comprising: a positive electrode current collector; a carbon coating layer on the positive current collector; and a positive electrode active material layer on the carbon coating layer and including a composite positive electrode active material including a Li2S-containing composite and a solid electrolyte. In addition, an all-solid-state secondary battery is disclosed, the all-solid-state secondary battery comprising: the positive electrode; a negative electrode; and a solid electrolyte layer provided between the positive electrode and the negative electrode.

To provide a cathode layer capable of reducing resistance of a battery.SOLUTION: There is provided a cathode layer including at least a cathode active material and a solid electrolyte. The cathode active material is cathode active material particles, an average particle diameter of the cathode active material particles is 2.5 μm or more and 4.5 μm or less, and a normalized interface length value A (μm-1) obtained by dividing a length (μm) of an interface between the cathode active material and the solid electrolyte confirmed from a SEM image of a cross section of the cathode layer by an area (μm2) of the cathode active material in the SEM image is 1.15 or more.SELECTED DRAWING: Figure 1

An electrochemical cell having a cathode comprising a fluorinated carbon nanotube (F-CNT), an anode and a solid electrolyte; wherein the solid electrolyte comprises an electrolyte component comprising i. 5 to 50 wt.% of an alkali metal-containing electrolyte salt, and ii. 50 to 95 wt.% of a polymer. Embodiments do not require a carbon-based conductive-adjuvant in the cathode. The thickness of the solid electrolyte may be least 5 microns. A container comprising cell may have space to allow for thermal expansion thereof. They may be used at elevated temperatures greater than 65 °C. or more, such as in a subterranean well.

A method for treating a surface of a strip or film, the strip or film being made of lithium or a lithium-based alloy, the method comprising a step of radiating at least one portion of the surface of the strip or film with a laser beam, the radiating step being carried out in a controlled atmosphere, the laser beam radiating the entire area of the at least one portion of the surface of the strip or film.

A battery cell structure (101, 201, 202) comprising a stack of at least : a first electrically insulating substrate (3), a cathode current collector (15), the first insulating substrate (3) being provided over the cathode current collector (15), a cathode active material layer (13), an electrolyte layer (9), a separator (7), an anode active material layer (17), an anode current collector (19), a second electrically insulating substrate (5) provided over the anode current collector (19). The stack is provided with at least one recess (33, 35, 37, 605) formed by a direct physical contact between the first electrically insulating substrate (3) and the second electrically insulating substrate (5) in at least one region of the stack. Alternatively, the stack is provided with at least one recess (33, 35, 37, 605) formed by a bonding of the first electrically insulating substrate (3) and the second electrically insulating substrate (5) by means of a bonding material (36).

The present disclosure provides an electrolyte composition containing a polymer having an ability to preferentially conduct alkali metal ions, an alkali metal salt, a coating film-forming additive, and an organic solvent.