Abstract: A separator for a rechargeable battery includes a porous substrate and a heat resistance layer on at least one surface of the porous substrate. The heat resistance layer includes an acryl-based copolymer, an alkali metal, and a filler. The acryl-based copolymer includes a unit derived from (meth)acrylate or (meth)acrylic acid, a cyano group-containing unit, and a sulfonate group-containing unit.

Abstract: A separator for a rechargeable battery includes a porous substrate and a heat resistance layer on at least one surface of the porous substrate. The heat resistance layer includes an acryl-based copolymer, an alkali metal, and a filler. The acryl-based copolymer includes a unit derived from (meth)acrylate or (meth)acrylic acid, a cyano group-containing unit, and a sulfonate group-containing unit.

Abstract: A positive electrode includes a positive electrode current collector, and a positive electrode active material layer that is provided on the positive electrode current collector and that includes a positive electrode active material, a conductive auxiliary agent, and a binder. A surface of the positive electrode active material layer has a reflectance Rc in a range of 2.0?Rc?12.0% at a wavelength of 550 nm. A lithium ion secondary battery includes: the positive electrode; a negative electrode including a negative electrode current collector and a negative electrode active material layer that is provided on the negative electrode current collector and that includes a negative electrode active material; a separator; and a nonaqueous electrolyte solution. A surface of the negative electrode active material layer has a reflectance Ra in a range of 7.5?Ra?16.0% at a wavelength of 550 nm.

Abstract: A short circuit current interruption method of a battery system including: stacking a plurality of prismatic battery cells and connecting the plurality of prismatic battery cells with a parallel connection bus bar in parallel to form a battery block, wherein a sealing plate of the prismatic battery cell is a plate material having flexibility that deforms when an internal pressure rises due to an internal short circuit, and when a rise in the internal pressure due to the internal short circuit of the prismatic battery cell causes deformation, the deformation of the sealing plate is detected, and when an amount of deformation exceeds a setting value, the short circuit current of the battery connected in parallel with the internally short circuited battery is interrupted.

Abstract: An all-solid secondary battery including: an anode layer including a first anode active material layer; a cathode layer including a cathode active material layer; a solid electrolyte layer between the anode layer and the cathode layer; and an anode current collector on the anode layer and opposite the solid electrolyte layer, wherein a maximum roughness depth Rmax of a surface of the first anode active material layer is about 3.5 micrometers or less.

Abstract: A secondary battery includes an electrode assembly formed by alternately stacking an electrode and a separator; a battery case that accommodates the electrode assembly therein; a plurality of electrode tabs protruding from the electrode assembly; a plurality of electrode leads, each of which has one end connected to one of the plurality of electrode tabs and another end protruding to an outside of the battery case; and a short-circuit induction part which has a wire shape, wherein ends of the short-circuit induction part are respectively disposed on a sealing part of the battery case that seals the plurality of electrode leads in the battery case, and wherein the ends of the short-circuit induction part are configured to respectively extend toward the plurality of electrode leads to contact the plurality of electrode leads when reaching a specific temperature.

Abstract: Disclosed is an electronic device according to an embodiment of the disclosure that includes a battery and a battery mounting part that receives the battery therein, in which the battery mounting part includes a base and at least one side surface extending from an edge of the base and a recess area is formed in at least a partial area of the at least one side surface. Besides, it may be permissible to prepare various other embodiments speculated through the specification.

Abstract: Embodiments of the invention include batteries and other charge-storage devices incorporating sheets and/or powders of silica fibers and methods for producing such devices. The silica fibers may be formed via electrospinning of a sol gel produced with a silicon alkoxide reagent, such as tetraethyl ortho silicate, alcohol solvent, and an acid catalyst.

Abstract: A system for controlling a rotation of one or more solar panels about an axis of rotation, comprising one or more solar panels defining a longitudinal axis, one or more bellows actuators coupled to the one or more solar panels and defining an axis of rotation parallel to the longitudinal axis of the panels, a fluid source, a first valve circuit coupled to the bellows actuators and the fluid source, a second valve circuit coupled to the bellows actuators and the fluid source, and a controller, wherein introduction or release of fluid from one or more of the bellows actuators is configured to cause rotation of the one or more actuators about the axis of rotation.

Abstract: An electrode structure and its method of manufacture are disclosed. The disclosed electrode structures may be manufactured by depositing a first release layer on a first carrier substrate. A first protective layer may be deposited on a surface of the first release layer and a first electroactive material layer may then be deposited on the first protective layer.

Abstract: An electromagnetic wave concentrating system, comprising a photovoltaic material and at least one holographic concentrator. The holographic concentrator includes at least two stacked holographic optical elements (HOE). Each HOE is configured to diffract incident light into a diffracted beams having different ranges of wavelengths. The diffracted beams generated by each HOE are directed at the photovoltaic material.

Abstract: A method for fabricating a device with integrated photovoltaic cells includes supporting a semiconductor substrate on a first handle substrate and doping the semiconductor substrate to form doped alternating regions with opposite conductivity. A doped layer is formed over a first side the semiconductor substrate. A conductive material is patterned over the doped layer to form conductive islands such that the conductive islands are aligned with the alternating regions to define a plurality of photovoltaic cells connected in series on a monolithic structure.

Abstract: Building integrated photovoltaic (BIPV) systems provide for solar panel arrays with improved aesthetics and efficiency that can replace conventional roof structures. BIPV mounting systems described herein allow for improved versatility and ease of installation as compared to conventional approaches. Such BIPV mounting systems can include photovoltaic (PV) roof tiles with separate mechanical coupling features and electrical contact portions for use with tile connectors having both mechanical and electrical coupling features. Such PV tiles can be mechanically and electrically coupled in series through the tile connectors without requiring wire bussing between adjacent PV roof tiles and the tile connectors can be slidable within a batten bracket to easily accommodate PV roof tiles of differing dimensions.

Abstract: Foldable photovoltaic assemblies and methods of manufacturing such assemblies, including a transparent top sheet having a fold line and a conductive interconnection pattern spanning the fold line. The conductive interconnection pattern includes inter-cell connections configured to interconnect individual photovoltaic cells to form photovoltaic submodules, and also inter-submodule connections configured to interconnect photovoltaic submodules to form an assembly of submodules, which in some cases may be a fully assembled photovoltaic module. The inter-submodule connections span the fold line and are oriented at non-perpendicular angles relative to the fold line.

Abstract: An apparatus for suppressing electron/hole recombination includes a photonic device that generates electron/hole pairs responsive to a light beam interacting with the photonic device. An orbital angular momentum (OAM) generation device is located to impart an orbital angular momentum to a light beam before the light beam interacts with the photonic device. The electron/hole pair recombination generated from an OAM imparted light beam is less than electron/hole pair recombination of a non-OAM imparted light beam.

Abstract: An electrolyte for Li-ion and other secondary electrochemical cells includes an FSI anion and at least one of methyltriethylphosphonium; trimethylisobutylphosphonium; methyltributylphosphonium; and trihexyltetradecylphosphonium. The electrolyte uniquely enables stable cell cycling even when water is present in the electrolyte at levels as high as 5000 ppm. Methyltriethylphosphonium and trimethylisobutylphosphonium-containing electrolytes are particularly effective in this water-stabilizing capacity.

Abstract: Photovoltaic systems and methods for optimizing the harvesting of solar energy are disclosed. The photovoltaic system includes: a housing; and a solar panel assembly supported within the housing. The solar panel assembly comprises: one or more solar panels; and a plurality of elongate tubes for receiving the solar panels. The tubes are stacked perpendicular to a base of the housing. Recycling of incident light is facilitated within each of these tubes. The light is intermittently or continuously recycled.

Abstract: Provided are a photoelectric conversion element capable of enhancing characteristics and reliability more than ever before and a method for manufacturing the photoelectric conversion element. The photoelectric conversion element includes a base including a semiconductor substrate, a first i-type semiconductor film placed on a portion of a surface of the semiconductor substrate, a first conductivity-type semiconductor film placed on the first i-type semiconductor film, a second i-type semiconductor film placed on another portion of the surface thereof, and a second conductivity-type semiconductor film placed on the second i-type semiconductor film; an electrode section including a first electrode layer placed on the first conductivity-type semiconductor film and a second electrode layer placed on the second conductivity-type semiconductor film; and a reflective section placed in a gap region A interposed between the first electrode layer and the second electrode layer.

Abstract: In one embodiment, a photovoltaic module includes a stack of layers, the module having an active layer and a planar heat sink positioned within the stack of layers adjacent the active layer, the heat sink being adapted to laterally remove heat from the active layer and the module.

Abstract: A solar cell has multiple busbar electrodes formed at intervals and multiple finger electrodes formed between the busbar electrodes. The finger electrodes comprise multiple finger parts connected only to one busbar electrode and multiple finger parts connected to only another busbar electrode. The adjacent multiple finger parts are connected to one another, and the adjacent multiple finger parts are connected to one another.