Abstract: A surface of a LiCoO2-based positive electrode active material to have a rock salt crystal structure is provided. Specifically, a positive electrode active material for a lithium rechargeable battery is provided, including: a core particle containing lithium cobalt oxide doped with aluminum (Al); and a coating layer positioned on a surface of the core particle and containing a cobalt (Co)-based compound having a rock salt crystal structure. A method of producing the positive electrode active material is also provided using a solid-phase method. The positive electrode active material can be applied to a positive electrode, lithium rechargeable battery, battery module, battery pack, and the like.

Abstract: A mixed silver powder and a conductive paste comprising the powder are disclosed. The mixed silver powder is obtained by mixing two or more spherical silver powders having different properties from each other. The mixed powder may minimize the disadvantages of the respective types of the two or more powders and maximize the advantages thereof, thereby improving the characteristics of products. In addition, by comprehensively controlling the particle size distribution of surface-treated mixed silver powder and the particle diameter and specific gravity of primary particles, a high-density conductor pattern, a precise line pattern, and the suppression of aggregation over time can be simultaneously achieved.

Abstract: A spectacle lens can inhibit ametropia of the eyes and ensure full visibility. The spectacle lens comprises: first refraction areas and second refraction areas. Each first refraction area has a first refraction force that may be based on a prescription for correcting the ametropia of the eyes. Each second refraction area has a refraction force different from the first refraction force and may function to focus images on the positions except the retina of the eyes, to inhibit the development of the ametropia. Near the central part of the lens, the second refraction areas form a plurality of independent island-shaped areas, and the first refraction areas form the areas beyond the areas of the second refraction areas.

Abstract: A method for predictive caching may include determining previous user activity related to data items and/or documents, receiving a request to view a document from a user, predicting data items to pre-cache based on the previous user activity and at least one other factor, prioritizing the predicted data items for pre-caching, dividing the prioritized data items for pre-caching into a plurality of groups, downloading prioritized data items for each group among the plurality of groups according to the prioritization of the predicted data items, and displaying a view of the document after data items, corresponding to the request, are received.

Abstract: Provided is a cobalt precursor for preparing a lithium cobalt oxide of a layered structure which is included in a positive electrode active material, wherein the cobalt precursor is cobalt oxyhydroxide (CoM?OOH) doped with, as dopants, magnesium (Mg) and M? different from the magnesium.

Abstract: A quantum dot-based color display includes a backlight unit with a light source and light source distribution layer and a photo down-conversion light emissive layer. The photo down-conversion layer has populations of light-emitting Group II-VI core-shell structure quantum dots, the core having an excess amount of a Group II component in a ratio to a Group VI component of approximately 6:1 or greater. The quantum dots include an organic fraction of approximately 20 weight percent to approximately 45 weight percent, the organic fraction including ligands bound to quantum dot surfaces in an as-deposited state and including one or more long-chain fatty acids. Non-barrier polymer films are positioned on either side of the photo down conversion light emissive layer which exhibits photo stability at a light intensity of at least 4000 W/m2. A display panel cooperates with the back light unit to form the display.

Abstract: A method for preparation of perovskite quantum dot (PQD)/polymer/ceramic ternary complex includes encapsulation of bifunctional coating including ceramic and polymer. Encapsulation sequence of polymer and ceramic may be altered according to the application. In one scenario, the perovskite quantum dots may be protected with ceramic coating first and further coated with polymer to obtain the perovskite/ceramic/polymer ternary complex. In another scenario, the perovskite quantum dots may be protected with polymer coating first and followed by ceramic coating to obtain the perovskite/polymer/ceramic ternary complex. The PQD ternary complex may provide synergistic effect on improvement of stability towards heat and moisture when compared to existing technology.

Abstract: The preset invention provides an electrode structure for a lithium ion battery comprising an electrode selected from a cathode including a lithium-based material or an anode including a conductive material, and a melt-convertible encapsulation layer covering at least one surface layer of the electrode. The melt-convertible encapsulation layer comprises a network of nanofibers having the diameter ranging approximately from 100 to 300 nm and polymer microspheres embedded in and coated on the nanofibrous network, wherein the ratio of the diameter of the polymer microspheres to the diameter of the nanofiber is over 30. The polymer microspheres melt to form a dielectric coating of the electrode so as to prevent fire or thermal runaway at a temperature approximately from 100 to 200° C.

Abstract: An electronic device includes a semiconductor memory. A method for fabricating the electronic device includes forming a first memory cell extending vertically from a surface of substrate and having a first upper portion that protrudes laterally, forming a second memory cell extending vertically from the surface of the substrate and having a second upper portion that protrudes laterally towards the first upper portion, and forming a liner layer over the first and second memory cells, the liner layer having a first portion disposed over the first upper portion and a second portion disposed over the second upper portion, the first and second portions of the liner layer contacting each other.

Abstract: The disclosure provides an electronic apparatus and a manufacturing method thereof. The electronic apparatus includes a first insulating layer, a first metal layer, a second metal layer, and an electronic assembly. The first insulating layer includes a first surface and a second surface opposite to the first surface. The first metal layer has an opening and is formed on the first surface. The second metal layer is formed on the second surface and a projection of the opening on the second surface is overlapped with a projection of the second metal layer on the second surface. The electronic assembly is electrically connected with the first metal layer and the second metal layer.

Abstract: An electronic device including a pair of substrates, a sealant, and a heating unit is provided. Each of the pair of substrates includes a peripheral area and an active area, and each of the peripheral areas are adjacent to an edge of a corresponding one of the pair of substrates. The sealant is disposed between the pair of substrates. The heating unit is disposed on one of the pair of substrates and comprising a first portion disposed in the peripheral area of the one of the pair of substrates and adjacent to an edge of the one of the pair of substrates, a third portion disposed in the active area, and a second portion connecting the first portion and the third portion. The resistance of the first portion is less than a resistance of the third portion. Therefore, the electronic device may have improved heating efficiency.

Abstract: The present invention provides a thermally-decomposable consolidated polymer particle encapsulated-electrode for a lithium-ion battery. The electrode includes polymer particles including at least one connection unit and at least one crosslinker in an amount of approximately 40% to 98% by weight and at least one binder material in an amount of approximately from 2% to 60% by weight. The consolidated crosslinked polymer particle coating results in a porous structure encapsulating the electrode. The pressure resistance of the consolidated crosslinked polymer particle coating ranges approximately from 0.5 to 8 MPa and the consolidated crosslinked polymer particle coating is decomposed to release a non-flammable gas and phosphorous-containing molecules so as to prevent thermal runaway at a temperature approximately from 300° C. to 500° C.

Abstract: The present invention provides an EMI shielding device including a flame retarding, thermal interface material composite with a through plane thermal conductivity of no less than 30 W/mK and a dielectric withstanding voltage of no less than 1 kV/mm, where the composite includes at least one dielectric layer of self-aligned, carbon-based materials associated with superparamagnetic particles and at least one layer of fillers including a blend of dielectric heat transfer materials with a thermal or UV curable polymer or phase change polymer. The anisotropic heat transfer carbon-based materials associated with superparamagnetic materials are aligned under a low magnetic field strength of less than 1 Tesla to an orientation that results in a high thermal conductivity direction which can conduct the maximum heat from the adjacent device of the present composite. The present invention also provides a method for preparing the composite.

Abstract: An antenna device is provided, including a first substrate, a first conductive element, a second substrate, a second conductive element, and an insulating layer. The first conductive element is disposed on the first substrate to define, on the first substrate, a recessed region adjacent to the first conductive element. The second substrate faces the first substrate. The second conductive element is disposed on the second substrate and located between the first substrate and the second substrate. The insulating layer is disposed between the first substrate and the second substrate. In a top view of the antenna device, the second conductive element overlaps the first conductive element and the recessed region, and the insulating layer at least partially overlaps the recessed region.

Abstract: A surface of a LiCoO2-based positive electrode active material to have a rock salt crystal structure is provided. Specifically, a positive electrode active material for a lithium rechargeable battery is provided, including: a core particle containing lithium cobalt oxide doped with aluminum (Al); and a coating layer positioned on a surface of the core particle and containing a cobalt(Co)-based compound having a rock salt crystal structure. A method of producing the positive electrode active material is also provided using a solid-phase method. The positive electrode active material can be applied to a positive electrode, lithium rechargeable battery, battery module, battery pack, and the like.

Abstract: A lithium cobalt-based positive electrode active material is provide, which includes sodium and calcium, wherein the total amount of the sodium and calcium is 150 ppm to 500 ppm based on the total weight of the lithium cobalt-based positive electrode active material. A method for preparing the lithium cobalt-based positive electrode active material is also provided.

Abstract: The present invention provides an anisotropic, thermal conductive, electromagnetic interference (EMI) shielding composite including a plurality of aligned polymer nanofibers to form a polymer mat or scaffold having a first and second planes of orientation of the polymer nanofibers. The first plane of orientation of the polymer nanofibers has a thermal conductivity substantially the same as or similar to that of the second plane, and the thermal conductivity of the first or second plane of orientation of the polymer nanofibers is at least 2-fold of that of a third plane of orientation of the polymer nanofibers which is about 90 degrees out of the first and second planes of orientation of the polymer nanofibers, respectively, while the electrical resistance of each of the first and second planes is at least 3 orders lower than that of the third plane. A method for preparing the present composite is also provided.

Abstract: A composite server heat sink with a metal base having a thermal conductivity of at least 200W/mK. Plural fins extend from the metal base, each fin having an anisotropic thermal conductivity in a range of approximately 300 to 650 W/mK in a longitudinal direction of the fin and less than approximately 30 W/mK in a widthwise direction of the fin. Each fin includes graphite in an amount of approximately 45-70 wt. %, diamond in an amount of approximately 2.5 to 10 wt. % with the balance comprising a metal selected from one or more of copper and aluminum. To create the anisotropic thermal properties, the graphite is aligned along the longitudinal direction of the fin.

Abstract: The disclosure provides an electronic apparatus and a manufacturing method thereof. The electronic apparatus includes a first insulating layer, a first metal layer, a second metal layer, and an electronic assembly. The first insulating layer includes a first surface and a second surface opposite to the first surface. The first metal layer has an opening and is formed on the first surface. The second metal layer is formed on the second surface and a projection of the opening on the second surface is overlapped with a projection of the second metal layer on the second surface. The electronic assembly is electrically connected with the first metal layer and the second metal layer.

Abstract: This technology provides an electronic device and a method for fabricating the same. An electronic device in accordance with an implementation of this document may include a substrate including a first portion in a first region and a second portion in a second region; a plurality of memory cells disposed over the first portion of the substrate; a first insulating layer extending over the second portion of the substrate and at least partially filling a space between adjacent ones of the plurality of memory cells; and a second insulating layer disposed over the first insulating layer. The first insulating layer has a dielectric constant smaller than that of the second insulating layer, a thermal conductivity smaller than that of the second insulating layer, or both.