Abstract: A conductive contact structure of a solar cell is provided, includes a substrate; a semiconductor region; and an electrode. The semiconductor region is disposed on or in the substrate. The electrode is disposed in the semiconductor region. The electrode includes a seed layer in contact with the semiconductor region. The seed layer includes an alloy material, and includes a main component and an improved component. The main component is one or more metals having an average refractive index lower than 2 and a wavelength in a range of 850-1200 nm, and the improved component includes any one or more of Mo, Ni, Ti, W, Cr, Mn, Pd, Bi, Nb, Ta, Pa, Si, and V.

Abstract: Lithium antimony sulfide compounds having lithium ion conductivity of at least 10?5 S/cm are described. The materials are useful as coatings of lithium metal anodes to preevent dendrite formation and provide lithium metal batteries having high energy density.

Abstract: A solar module having on the front a cover plate with an outer surface and an inner surface is described. An optical interference layer for reflecting light within a predefined wavelength range is arranged on the inner surface. The inner surface and/or the outer surface have a patterned region. The patterned region has a height profile with hills and valleys, and a portion of the patterned region is composed of flat segments that are inclined relative to a plane of the cover plate.

Abstract: A pressure control valve structure includes a wall portion having a plurality of communication holes communicating with their associated internal spaces, a plurality of projections protruding outwardly from a wall surface of the wall portion so as to surround their associated communication holes, a plurality of elastic valve bodies closing their associated communication holes in contact with the projections, an outer peripheral wall portion protruding from the wall surface so as to surround the plurality of projections collectively, and a cover made of a resin and fixed to the outer peripheral wall portion, the cover compressing the elastic valve bodies towards their associated projections. The cover has a thick-walled portion where the cover is made partially thick in an outer surface of the cover.

Abstract: Disclosed herein is add-on electronic circuit structures and methods for providing protection against reverse-electrical-current failures and for enabling comprehensive electrical (current-voltage sweep) and electro-optical (electroluminescence or EL using reserve current flow) testing of solar photovoltaic cells and modules having at least one multi-modal maximum-power-point tracking (MPPT) power optimizer integrated circuit chip to increase electrical energy generation yield of the modules. Such multi-modal MPPT power optimizer chips are used for distributed solar electric power generation enhancement in solar photovoltaic cells, modules, and systems under realistic operating conditions with non-ideal manufacturing and environmental variations (e.g., variable and/or non-uniform sunlight or daylight, mismatched cells, etc.).

Abstract: There is provided a transparent semiconductor substrate and a method for manufacturing same includes a semiconductor substrate including a first surface and a second surface opposite to the first surface; and a through-hole penetrating the semiconductor substrate, wherein the through-hole includes an inclined portion inclined with respect to the first surface and second surface.

Abstract: According to one embodiment, an electrode is provided. The electrode includes a current collector, and an active material-containing layer which is formed on a surface of the current collector and includes a plurality of niobium titanium composite oxide particles. A X-ray diffraction pattern using a Cu-K? ray source with respect to a surface of the active material-containing layer includes a peak A with a highest intensity in a range of 2?=26°±0.2° and a peak B with a highest intensity in a range of 2?=23.9°±0.2°. An intensity ratio (Ia/Ib) between an intensity Ia of the peak A and an intensity Ib of the peak B is in a range of 1.80 or more to 2.60 or less.

Abstract: According to one or more embodiments, an organic light-emitting device includes: a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; and a hole transport region between the first electrode and the emission layer.

Abstract: To provide a thermoelectric conversion module member which has a high connecting property between a thermoelectric conversion layer and a diffusion prevention layer and is also excellent in heat resistance. A thermoelectric conversion module member comprising a thermoelectric conversion layer and a diffusion prevention layer in contact with the above-described thermoelectric conversion layer, wherein the above-described thermoelectric conversion layer is a layer containing a thermoelectric conversion material having a silicon element or a tellurium element, the above-described diffusion prevention layer is a layer containing a metal and the same thermoelectric conversion material as that contained in the above-described thermoelectric conversion layer, and the amount of the above-described thermoelectric conversion material in the above-described diffusion prevention layer is 10 to 50 parts by weight with respect to 100 parts by weight of the above-described metal.

Abstract: Systems and methods are provided for protecting solar panels from damage due to overheating. A system comprises a solar panel and a control system. The solar panel comprises a plurality of solar cells, and a plurality of thermochromic temperature sensors thermally coupled to different areas of the solar panel. The thermochromic temperature sensors are configured to change color in response to heat generated by the solar cells in the different areas of the solar panel. The control system is configured to detect colors of the thermochromic temperature sensors, determine a temperature of each area of the solar panel based on the detected colors of the thermochromic temperature sensors, and cause the solar panel to shut down in response to determining that the temperature of at least one area of the solar panel exceeds a predetermined temperature threshold.

Abstract: A solar-powered wireless communication device a flexible circuit, a device layer positioned adjacent to the flexible circuit and having a plurality of electronic components coupled to the flexible circuit, a flexible cover positioned over the device layer, a flexible substrate coupled with a second side of the flexible circuit, opposite the first side, by a first adhesive layer, and a solar panel positioned at a surface of the solar-powered tape node and coupling with the flexible circuit. The solar panel has a light-receiving surface facing away from the flexible circuit and is operable to generate electrical power when light is incident on the light-receiving surface. The solar-powered wireless communication device being operable to determine that power available to the solar-powered wireless communication device is below a first threshold and delegate at least one task of the solar-powered wireless communication device to another node of a network communications environment.

Abstract: A system for supplying power to a portable battery pack including a battery enclosed by a wearable and replaceable pouch or skin using at least one solar panel is disclosed, wherein the pouch or skin can be provided in different colors and/or patterns. Further, the pouch or skin can be MOLLE-compatible. The battery comprises a battery element housed between a battery cover and a back plate, wherein the battery element, battery cover, and back plate have a slight curvature or contour. Further, the battery comprises flexible leads.

Abstract: A battery comprising a battery element housed between a battery cover and a back plate, wherein the battery element, battery cover, and back plate have a slight curvature or contour adapted to conform to a curvature or a contour of a load-bearing platform. Further, the battery comprises flexible omnidirectional leads.

Abstract: The present application relates to the technical field of solar cells, and in particular, to a method for preparing a solar cell, the solar cell, and a photovoltaic module. The method for preparing the solar cell includes: providing a substrate; forming a doped amorphous silicon layer on the first side of the substrate; performing laser treatment N times on the doped amorphous silicon layer to form N doped polysilicon layers ranging from a first doped polysilicon layer to a Nth doped polysilicon layer stacked in a direction away from the substrate, where N>1, a power, a wavelength and a pulse irradiation number of a nth laser treatment are respectively smaller than a power, a wavelength and a pulse irradiation number of a (n?1)th laser treatment, where n?N, and the first doped polysilicon layer is disposed closer to the substrate than the Nth doped polysilicon layer. The embodiments of the present application are conducive to simplify the process of forming the solar cell.

Abstract: A lithium secondary battery, and more particularly, to a lithium secondary battery having improved performance by minimizing the content of impurities such as sodium in the battery.

Abstract: Proposed is a method of synthesizing a solid-state electrolyte of Li3HalO formula for use in a lithium-ion battery. The method consists of uniformly mixing at least LiOH and LiHal in a stoichiometric quantities, heating the prepared mixture to a melting temperature and causing a reaction of formula (2LiOH+LiHal=Li3HalO+H2O) between the at least LiOH and LiHal in a process free of forming a perovskite structure and at a temperature, at which H2O that forms at the aforementioned reaction is converted into a bound form, whereby a reaction product is obtained. According to another modification of the method, prior to the stage of melting the mixture, a reinforcement mesh is immersed into the mixture, whereby after mixture is solidified, a solid-state electrolyte reinforced with the mixture embedded into its material is obtained.

Abstract: Disclosed is a carbon-based fiber sheet and a lithium-sulfur battery including the same. The carbon-based fiber sheet for the lithium-sulfur battery is doped with a high concentration of nitrogen and thus plays a role of preventing diffusion by adsorbing lithium polysulfide eluted from a positive electrode during charging and discharging, thereby suppressing a shuttle reaction and thus improving capacity and lifecycle properties of the lithium-sulfur battery.

Abstract: A degassing unit to be connected fluid-tightly to a pressure compensation opening of an electronics housing has a base body with gas passage opening. A semipermeable membrane, fastened fluid-tightly to a membrane carrier, allows gaseous media to pass from an environment into the electronics housing and in reverse but prevents passage of liquid media and solids. In normal operation, the membrane covers the gas passage opening. An axial seal circumferentially extends about the gas passage opening. The membrane carrier is moveable relative to the base body and, in normal operation, is pressed by axial force seal-tightly against the axial seal. The membrane carrier, when a predetermined pressure difference between housing interior and environment is surpassed, lifts off the base body to release an emergency degassing opening surrounding the membrane. The axial seal is a lip seal and made of a material softer than a material of the membrane carrier.

Abstract: The present specification relates to a sheet laminate for a solid oxide fuel cell, a precursor for a solid oxide fuel cell including the same, an apparatus for manufacturing a sheet laminate for a solid oxide fuel cell, and a method for manufacturing a sheet laminate for a solid oxide fuel cell.

Abstract: A separator for electricity storage devices, which comprises a porous layer that contains a polyolefin resin and an ionic compound, and which is configured such that: the content of the ionic compound in the porous layer is from 5% by mass to 99% by mass (inclusive); and the degree of whiteness of this separator is more than 98.0.