19 results about "Nail penetration" patented technology

The invention relates to the technical field of solid-state lithium ion batteries, in particular to a composite solid-state electrolyte diaphragm, a preparation method and an all-solid-state battery. According to the invention, a 3D ion / electron channel is constructed through a cellulose skeleton, an oxide electrolyte nanowire directional arrangement technology is adopted, and an in-situ interface lithium fluoride repairing layer is adopted, so that the industrialization bottleneck that high ion conduction-mechanical strength-interface stability is difficult to collaboratively optimize in the prior art is broken through; the common problems of insufficient bulk phase and interface ion conductivity, poor mechanical strength, poor compatibility with a high-nickel positive electrode / silicon carbon negative electrode and the like of a solid-state battery are effectively solved. The mass energy density of the prepared all-solid-state battery can reach 360 Wh / kg, the capacity retention ratio can still be maintained at 80% or above after 1100 times of circulation, and the all-solid-state battery successfully passes 190 DEG C thermal runaway and acupuncture tests and shows excellent safety performance and wide industrial application prospects.

This application provides a secondary battery and electronic device, belonging to the field of energy storage technology. The secondary battery includes a positive electrode sheet, which comprises a positive current collector, a solid electrolyte layer, and a positive electrode material layer. The solid electrolyte layer includes a first solid electrolyte layer and a second solid electrolyte layer. Along the thickness direction of the positive electrode sheet, the first solid electrolyte layer is disposed on one surface of the positive current collector, and the second solid electrolyte layer is disposed on the other surface of the positive current collector opposite to the first solid electrolyte layer. The positive electrode material layer is located on the surface of the first solid electrolyte layer opposite to the positive current collector and the surface of the second solid electrolyte layer opposite to the positive current collector. The first solid electrolyte layer comprises an oxide solid electrolyte, and the second solid electrolyte layer comprises a sulfide solid electrolyte. This application improves the pass rate of the battery cell in the nail penetration test and suppresses local temperature rise during the nail penetration process by controlling the solid electrolyte layer of the positive electrode sheet, thereby reducing the risk of thermal runaway.

The utility model discloses a garden drainage plate connecting structure, which comprises a connecting plate and two adjacent drainage plates, the drainage plates are integrally connected with a fixing column, the connecting plate is provided with a connecting hole for the fixing column to pass through, and the fixing column is clamped with a knob type tensioner for tightly pressing the connecting plate and the drainage plates. The fixing columns are integrally formed on the drainage plates, the two drainage plates are connected through the connecting plate and fixed through the knob type tensioner, connection and fixation of the connecting plate to the two drainage plates are completed, fixation in an anchor penetrating mode is not needed, the situations that the structural integrity of the drainage plates is damaged, and leakage is caused are avoided, and the drainage plates are convenient to use. The technical problems that an existing drainage plate needs to be fixed in a rivet penetrating mode, the structural integrity of the drainage plate is damaged, and the leakage risk is likely to be caused are solved.

The invention relates to an amorolfen liniment, and belongs to the field of external pharmaceutical preparations. By adding a specific type of penetration enhancer into the amorolfen liniment, the amorolfen liniment can realize higher retention volume of the medicine in nails and has higher nail penetration capacity, namely, the penetration speed and degree of the medicine on the nails are obviously increased, the defects in the prior art are overcome, and the amorolfen liniment is suitable for clinical application. And a better choice is provided for clinical treatment of nail fungal infection.

A positive electrode plate includes a current collector, a conductive coating, a first active material layer and a second active material layer, where the conductive coating is formed on a surface of the current collector, the first active material layer is formed on a surface of the conductive coating, and the second active material layer is formed on a surface of the first active material layer; the first active material layer includes a first active material; the second active material layer includes a second active material; the first active material does not catch fire in a nail penetration test; and the second active material has a gram capacity greater than or equal to 165 mAh / g.

A method of improving fire resistance of a lithium battery, the method comprising disposing a heat-resistant spacer layer between a porous separator and a cathode layer or anode layer, wherein the heat-resistant spacer layer contains a distribution of particles of a thermally stable material having a heat-induced degradation temperature or melting point higher than 400° C. (up to 3,500° C.) and wherein the heat-resistant spacer layer acts to space apart the anode and the cathode when the porous separator of the battery fails. Such a heat-resistant spacer layer prevents massive internal shorting from occurring when the porous separator gets melted, contracted, or collapsed under extreme temperature conditions induced by, for instance, dendrite or nail penetration.

To provide a square-type power storage device capable of preventing gas emission from being made difficult by blockage of a safety valve due to debris of an electrode body, etc., in a case where a nailing test is performed.SOLUTION: A square-type power storage device 1, 101 includes a case main body 5, a case 4 in a parallelepiped box shape having a lid body 6, 106 in a rectangular plate shape, an electrode body 2 which is stored in the case, a positive electrode terminal member 7, 107 which penetrates a positive electrode insertion hole 6p, 106p disposed in the lid body and extends to the outside, and a negative electrode terminal member 8, 108 which penetrates a negative electrode insertion hole 6n, 106n and extends to the outside. The lid body includes: a first safety valve 6s1, 106s1 which is disposed in a central region 6C, 106C of the lid body and opened with a first working pressure P1; a second safety valve 6s2, 106s2 which is disposed on one side LH1 from the central region and opened with a second working pressure P2 which is higher than the first working pressure; and a third safety valve 6s3, 106s3 which is disposed on another side LH2 from the central region and opened with a third working pressure P3 which is higher than the first working pressure P1.SELECTED DRAWING: Figure 2

This invention relates to the field of lithium-ion battery technology, and more specifically, to a high-safety lithium-ion battery. The high-safety lithium-ion battery includes an electrode assembly and an in-situ cross-linked flame-retardant gel electrolyte. The electrode assembly includes a positive electrode, a negative electrode, and a composite separator disposed between the positive and negative electrodes. The in-situ cross-linked flame-retardant gel electrolyte is prepared from raw materials comprising the following mass percentages: 15%–25% polymer monomer, 10%–20% flame retardant, 5%–18% lithium salt, 0.3%–1.5% initiator, and 35.5%–60% solvent. The in-situ cross-linked flame-retardant gel electrolyte formed by mixing the above components can form a stable three-dimensional network, fixing the flammable electrolyte and blocking electron short-circuit paths. Combined with the composite separator, it forms double protection, ensuring that the battery does not ignite or explode during nail penetration testing, maintains a high 6C capacity retention rate, and also performs safely during 70% deformation compression testing.

The application provides an electrochemical device and an electronic device. The electrochemical device comprises a positive electrode sheet, the positive electrode sheet comprises a positive electrode current collector, a first coating layer and a positive electrode material layer, the first coating layer is arranged on the surface of the positive electrode current collector, and the positive electrode material layer is arranged on the surface of the first coating layer away from the positive electrode current collector. The first coating layer comprises a first main material and a first binder, the first main material comprises a lithium supplement material, and the lithium supplement material comprises at least one of lithium iron phosphate, lithium manganese iron phosphate, lithium orthosilicate or lithium ferrite; the infrared spectrum of the first coating layer has a characteristic peak between 3200 cm ‑1 and 3400 cm ‑1 . The electrochemical device provided by the application can balance the nail penetration safety performance, capacity and volume energy density.

To provide a pharmaceutical composition excellent in solubility of an antifungal agent and permeability to a nail.SOLUTION: A pharmaceutical composition comprising an aerosol stock solution and a propellant, wherein the aerosol stock solution comprises 1 to 18% by mass of the following components (A) to (C), (A) an antifungal agent, (B) a solvent, and (C) water in the aerosol stock solution, the component (B) is a solvent having a Hansen solubility parameter located within a Hansen solubility sphere having a radius of 12.6 centered on (δ D = 17.5, δ P = 15.9, δ H = 6.9), and the propellant comprises carbon dioxide gas.SELECTED DRAWING: None

The present application relates to a positive electrode plate and an electrochemical device. The positive electrode plate comprises a current collector, a positive active material layer and a safety coating disposed between the current collector and the positive active material layer, the safety coating comprising a polymer matrix, a conductive material and an inorganic filler, wherein the polymer matrix is fluorinated polyolefin and / or chlorinated polyolefin and the weight ratio of the polymer matrix to the conductive material is 2 or more. The positive electrode plate may improve the safety performance during nail penetration of the electrochemical device such as a capacitor, a primary battery or a secondary battery.

To provide a pharmaceutical composition excellent in solubility of an azole-based antifungal agent and permeability to nails.SOLUTION: (C) 1 to 18% by mass of water, and (D) 54% by mass or more of ethanol, wherein the components (B) are solvents whose Hansen solubility parameter is located within a Hansen solubility sphere with a radius of 12.6 centered on (δ D = 17.5, δ P = 15.9, δ H = 6.9), and the solvents include at least one or more selected from the group consisting of (B1) benzyl alcohol, 1-phenylethanol, and 2-phenylethanol.SELECTED DRAWING: None

The present invention provides a rectangular power storage device capable of preventing difficult discharge of gas due to clogging of a safety valve by fragments of an electrode body or the like when a spike test is performed. A rectangular power storage device is provided with: a rectangular box-shaped case having a case main body and a rectangular plate-shaped cover body; an electrode body accommodated in the housing; a positive electrode terminal member that passes through a positive electrode insertion hole provided in the cover body and extends and protrudes to the outside; and a negative electrode terminal member that passes through the negative electrode insertion hole, extends and protrudes to the outside, and has: a first safety valve that is provided in the center region of the cover body and opens under a first operating pressure; a second relief valve which is provided on one side of the central region and which opens at a second operating pressure higher than the first operating pressure; and a third relief valve which is provided on the other side of the central region and which opens at a third operating pressure higher than the first operating pressure.

The invention provides an electrochemical device and an electronic device, the electrochemical device comprises a positive pole piece, the positive pole piece comprises a positive current collector, a first coating and a positive material layer, the first coating is arranged on the surface of the positive current collector, and the positive material layer is arranged on the surface, away from the positive current collector, of the first coating; the first coating comprises inorganic particles, and the inorganic particles comprise at least one of nano boehmite, aluminum oxide, titanium dioxide, magnesium oxide, zirconium oxide or zinc oxide; the positive electrode material layer comprises a first conductive agent, and the first conductive agent comprises a first carbon nanotube; the length of the first carbon nanotube is 2-5 [mu] m, and the diameter of the first carbon nanotube is 2-100 nm; and the ion transference number of the positive electrode material layer is 0.4-0.47. The electrochemical device provided by the invention can consider the nail penetrating safety performance, the low-temperature cycle performance and the quick charging performance.

An electrochemical device includes a positive electrode plate. The positive electrode plate includes a positive electrode current collector, a first coating layer, and a positive electrode material layer; the first coating layer is disposed on a surface of the positive electrode current collector; the positive electrode material layer is disposed on a surface of the first coating layer facing away from the positive electrode current collector; the first coating layer includes a first main material and a first binder; the first main material includes a solid-state electrolyte; a carbon material is provided on a surface of the solid-state electrolyte; the first main material has a Dv50 of 50 nm to 200 nm; and the first coating layer has a thickness of 0.5 µm to 2 µm. The electrochemical device of the present application has good nail penetration safety performance while achieving good cycling performance and low-temperature discharge performance.

The present application relates to the technical field of phenolic board nail penetration, in particular to an automatic phenolic board nail penetration machine, which is used in cooperation with a phenolic board and a phenolic board nail, and comprises a frame body, a conveying mechanism, a nail conveying mechanism and a nail penetration mechanism, wherein the frame body comprises a track frame and a platform frame, the track frame is a frame structure as a whole and is symmetrically arranged on both sides of the platform frame, and the track frame adjustably supports the conveying mechanism and the nail conveying mechanism, the nail penetration mechanism is provided in different connection modes, so that the pushing and penetration processes can be combined into one process, or the pushing and penetration processes can be arranged separately, and the pushing process and the penetration process have the same structure, so that the pushing process and the penetration process can be switched by changing the different connection modes, and the pushing and penetration processes can be flexibly changed according to the needs of the nail penetration at different positions of the phenolic board.

The application provides an electrochemical device and an electronic device. The electrochemical device comprises a positive electrode sheet, the positive electrode sheet comprises a positive electrode current collector, a first coating layer and a positive electrode material layer, the first coating layer is arranged on the surface of the positive electrode current collector, and the positive electrode material layer is arranged on the surface of the first coating layer away from the positive electrode current collector. The first coating layer comprises a first main material, the first main material comprises a lithium-rich manganese-based material or a metal oxide, and the mass percentage of the first main material is 20% to 95% based on the mass of the first coating layer. The membrane sheet resistance of the positive electrode sheet is R1 Ω when the state of charge is greater than 80%, and the membrane sheet resistance is R2 Ω when the state of charge is 0% to 50%. 100%≤(R1-R2) / R2×100%≤500%. The electrochemical device provided by the application can improve the fast charging performance while ensuring good nail penetration safety.

The invention discloses a composition for treating fungal infection of skin or nails and a preparation method thereof. The ionic liquid containing efinaconazole and salicylic acid and the ionic liquid urea polylipoic acid gel prepared by the invention are suitable for externally applied skin or nail administration, have good nail permeability and retention property, can persistently reside in the administrated skin or nail area and are not easily influenced by water and the like in the environment; the medicine is continuously released to treat diseases, and the outer surface of the gel is not adhered to clothes. The ionic liquid urea gel irradiated by ultraviolet light is good in compliance, strong in antifungal effect and strong in infiltration promotion effect when being used for treating fungal infection of skin or nails, can be used as a clinical drug treatment method for fungal infection of skin or nails, and has important significance for treatment of fungal infection of skin or nails.

A battery has an electrode assembly with two electrodes, namely a positive and a negative electrode; an electrically conductive cover plate; a contact element; and a housing. The electrode assembly and the electrically conductive cover plate are accommodated in the housing, and the electrically conductive cover plate is electrically conductively connected to a first electrode of the two electrodes and to the contact element. The contact element is guided outwards through an opening in the housing. An additional structure is provided between the cover plate and the housing, the additional structure being electrically conductively connected directly or indirectly to the contact element, and a current path from the additional structure to the contact element has a higher resistance than a current path from the cover plate to the contact element, which can reduce the potential risk of a short circuit during a nail penetration test.