Abstract: Energy storage systems, battery cells, and batteries of the present technology may include a heat exchanger or fluid delivery structure that may transfer heat from a battery cell or cell block to a heat exchange fluid. The heat exchanger or fluid delivery structure may substantially maintain an interfacial temperature during a temperature increase from the battery cell or cell block.

Abstract: Various designs and configurations of and methods of operating fuel cell units, fuel cell systems and combined heat and power systems are provided that permit efficient thermal management of such units and systems to improve their operation.

Abstract: Foldable solar power systems are disclosed herein. In some embodiments, a solar power system includes a support structure mounted to an intermediate bulk container (IBC) or other tank structure. A plurality of solar panels are mounted to the support structure. The support structure is movable between (a) a first configuration for storage and transport and (b) a second configuration for energy generation. In the first configuration, the solar panels are folded adjacent to a sidewall of the IBC. In the second configuration, the solar panels are opened/expanded and generally coplanar with one another. The solar panels can be aligned with a solar energy source in the second configuration to generate electrical energy. The IBC can be filled with a ballast material to anchor the solar panels in the second configuration.

Abstract: A solid electrolyte material includes a first crystal phase. The first crystal phase has a composition that is deficient in Li as compared with a composition represented by the following composition formula (1).

Abstract: A solid junction-type photoelectric conversion element (10) including a first conductive layer (2), an electric power generation layer (4), and a second conductive layer (6), which are laminated in this order, wherein the electric power generation layer (4) comprises: a perovskite compound represented by a composition formula ABX3, formed of an organic cation A, a metal cation B and a halide anion X, and a compound Z having no perovskite structure.

Abstract: Provided are an inverted thick 2D hybrid perovskite solar cell insensitive to film thickness and a preparation method thereof, belonging to the field of organic-inorganic hybrid perovskite materials. The solar cell adopts a 2D hybrid perovskite thick-film material as a light absorption layer having thickness in a range of 500-800 nm, which is conducive to the full absorption of sunlight. The thick-film film material can be deposited from a precursor solution added with guanidine hydroiodide, and is composed of large grains growing along the thickness direction. The solar cell with an inverted structure prepared by using the thick-film material as a light absorption layer has an efficiency fluctuation less than 5% in a film thickness range of 500-800 nm. This is of great value for the preparation of high-performance hybrid perovskite solar cells by a large-area solution method.

Abstract: A nonaqueous electrolyte secondary battery which is provided with a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode contains: a positive electrode active material and a compound having a cobalt content of 30% by weight or more. The weight A of the compound and the total weight B of the positive electrode active material satisfy 0.01?A/(A+B)?0.15. The negative electrode contains a negative electrode active material. The nonaqueous electrolyte contains propylene carbonate and diethyl carbonate as nonaqueous solvents; the total amount of the propylene carbonate and the diethyl carbonate is 70% by volume or more relative to 100% by volume of the nonaqueous solvents; and the volume ratio of the propylene carbonate to the diethyl carbonate is within the range of from 1:1 to 1:19.

Abstract: Leading-edge units for a PV array comprising fastener or component holes for anchoring the array bonding the array and protecting array cabling. The leading-edge units provide a favorable aerodynamic shape to help deflect incoming wind, the channel rainwater and to protect the edge of the array. Methods having steps of placing modules contacting native topography or a smoothed or substantially flat portion of the ground in an array and holding the array together and down are also disclosed.

Abstract: The present invention relates to a photovoltaic module comprising a solar cell element and an insulation material laminated to at least one side of the solar cell element wherein the insulation material comprises an olefin copolymer which comprises silane group-containing monomer units, to a process for the production of such a photovoltaic module, and to the use of an olefin copolymer which comprises silane group-containing monomer units for the production of an insulation layer of a photovoltaic module.

Abstract: A solar array may include a first rigid composite solar panel including solar cells secured to a first substrate. The solar array may further include a second rigid composite solar panel including solar cells secured to a second substrate. The solar array may also include solar panel modules including solar cells secured to a flexible sheet of material. The solar panel modules may be coupled between the first composite solar panel and the second composite solar panel. The solar array may be configured to be retained in a stowed arrangement with the solar panel modules between the first rigid composite solar panel and the second rigid composite solar panel. The solar array further configured to be extended with an extendable arm until each of the first rigid composite solar panel, the second rigid composite solar panel and the solar panel modules are arranged in a substantially straight line.

Abstract: Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a bisfluorophosphite multicyclic compound, and a lithium secondary battery including the electrolyte.

Abstract: A method for reducing shading in a photovoltaic plant, said photovoltaic plant includes a plurality of solar trackers, made up of one or more photovoltaic panels, arranged in adjacent parallel rows at a given predetermined distance; an actuator, controlled by a tracker controller, which enables each solar tracker to rotate independently regarding the other solar trackers of the row around said North-South axis; and a control system which includes a communication network enabling a bidirectional communication between each tracker controller and a central control unit which controls the photovoltaic plant. The method uses an algorithm executed by a processor of the central control unit, which determines a tilt angle (?) for each solar tracker in each row inputted in the algorithm, using constant and variable data of each solar tracker, and by selecting either a first (“Morning”) or a second configuration (“Afternoon”).

Abstract: A solid-state battery having a battery body that includes a functional portion, a first edge portion, and a second edge portion. The functional portion is a portion where first and second internal electrodes and a solid electrolyte layer overlap each other in a thickness direction. The first edge portion is a portion where the first internal electrode, the solid electrolyte layer, and a second insulating layer overlap each other in the thickness direction. The second edge portion is a portion at which the second internal electrode, the solid electrolyte layer, and a first insulating layer overlap each other in the thickness direction. Each of thicknesses of the first and second edge portions are greater than a thickness of the functional portion.

Abstract: Provided are an electrode material for thermoelectric conversion modules capable of preventing cracking and peeling of electrodes that may occur at the bonding parts of a thermoelectric element and an electrode under high-temperature conditions to thereby maintain a low resistance at the bonding parts, and a thermoelectric conversion module using the material.

Abstract: The present invention relates to a positive electrode active material for a lithium secondary battery, including a lithium composite metal oxide in a form of secondary particles formed by aggregation of primary particles, wherein the secondary particles have voids in interior thereof and a number of the voids with cross section thereof present per 1 ?m2 of cross section of the secondary particles is 0.3 or more and 15 or less.

Abstract: An electrical connection box for connecting a panel of exterior cladding of a building, the connection box including a first shell and a second shell which are interlockable, the first shell including a base including one aperture topped by a sealing chamber, a lateral wall surrounding the base and extending perpendicularly to it, the lateral wall including a removable hatch, removable to expose a wire passage, an electrical terminal connected to the base, with the axis perpendicular to the base; the second shell including a base, a lateral wall surrounding the base and extending perpendicularly to it, the lateral wall including a wire passage, an electrical terminal of inverse polarity to that of the electrical terminal of the first shell, the electrical terminal having an axis perpendicular to the base, connected to the base and positioned in such a way that it is plumb with the electrical terminal of the first shell when the first and the second shell are interlocked.

Abstract: Aspects of the disclosure relate to high altitude or stratospheric balloon systems. For instance, a stratospheric balloon system may include a an upper structure, a lower structure, a platform associated with the lower structure, a stack of solar panels positioned on the platform, each solar panel coupled to an adjacent solar panel, at least one tension element connected, at a first end thereof, to the upper structure and, at a second end thereof, to the platform, and a first flexible tension member coupled, at a first end thereof, to the upper structure and to foremost solar panel of the stack of solar panels. Solar panels may be stacked in a “Z-fold” configuration with either solar cells of the adjacent solar panels facing one another or the frames of the adjacent solar panels facing one another. In this configuration, the adjacent solar panels are connected by a hinge system.

Abstract: Disclosed herein is a technique of configuring flexible photovoltaic tracker systems with high damping and low angle stow positions. Under dynamic environmental loads implementing a high amount of damping (e.g., greater than 25% of critical damping, greater than 50% of critical damping) or a very high amount of damping (e.g., 100% or greater of critical damping, infinite damping) enables the flexible tracker system to prevent problematic aeroelastic behaviors while positioned in a low stow angle. The disclosed technique is further applied to a prototyping process during wind tunnel testing.

Abstract: Methods of making a solid-state electrochemical cell that cycles lithium ions are provided that include applying a liquid metal composition comprising gallium to a first major surface of either a solid-state electrolyte or a solid electrode (e.g., lithium metal) in the presence of an oxidant and in an environment substantially free of water to reduce surface tension of the liquid metal composition so that it forms a continuous layer over the first major surface. The first major surface having the continuous layer of liquid metal composition is contacted with a second major surface to form a continuous interfacial layer between the solid-state electrolyte and the solid electrode. Solid-state electrochemical cells formed by such methods are also provided, where the metal composition comprising gallium is a liquid in a temperature range of greater than or equal to about 20° C. to less than or equal to about 30° C.

Abstract: An insulated heat transfer substrate includes a heat transfer layer formed of aluminum or an aluminum alloy, a conductive layer provided on one surface side of the heat transfer layer, and a glass layer formed between the conductive layer and the heat transfer layer, in which the conductive layer is formed of a sintered body of silver, and a thickness of the glass layer is in a range of 5 ?m or larger and 50 ?m or smaller.