Abstract: A solar cell array comprises a plurality of cells, adjacent cells connected by a metal wire. At least one metal wire extends reciprocally between a surface of a first cell and a surface of a second cell adjacent to the first cell to form a plurality of conductive wires. The number of the conductive wires is n, y?y×20%?n?y+y×20%, in which n is an integer and y=4.0533X?1.28/1562*A*B, in which X is a diameter value of the metal wire with mm as a unit, 0.1?X?0.5, A and B representing length and width of the cell with mm as the unit. The cells comprise secondary grid lines disposed on front surfaces thereof. The conductive wires are welded with the secondary grid lines by a welding layer.

Abstract: A solar cell unit comprises a cell. The cell includes a cell substrate and a plurality of secondary grid lines disposed on a front surface of the cell substrate. The secondary grid lines comprises an edge secondary grid line adjacent to an edge of the cell substrate and a middle secondary grid line disposed inside of the edge secondary grid line. The at least one edge secondary grid line has a width greater than the middle secondary grid line. The solar cell unit also comprises a plurality of conductive wires spaced apart from each other. The plurality of conductive wires intersects and is connected with the secondary grid lines.

Abstract: A solar cell module comprises an upper cover plate, a front adhesive layer, a cell array, a back adhesive layer and a back plate superposed in sequence, the cell array comprising multiple cells, adjacent cells connected by a plurality of conductive wires, at least two conductive wires comprising the metal wire which extends reciprocally between surfaces of adjacent cells, the conductive wires being in contact with the cells, the front adhesive layer in direct contact with the conductive wires and filling between adjacent conductive wires.

Abstract: A solar cell unit comprises a cell. The cell includes a cell substrate and a secondary grid line disposed on a front surface of the cell substrate. The solar cell unit also comprises a conductive wire intersecting and welded with the secondary grid line. The secondary grid line has a width in a welding position with the conductive wire greater than a width thereof in a non-welding position.

Abstract: A solar cell module, comprising an upper cover plate, a front adhesive layer, a cell, a back adhesive layer and a back plate superposed in sequence, a secondary grid line being disposed on the cell, a conductive wire comprising a metal wire being disposed between the front adhesive layer and a front surface of the cell, a welding layer disposed on a welding position where the conductive wire and the secondary grid line are welded, the welding layer being an alloy containing Sn, Bi and at least one of Cu, In, Ag, Sb, Pb and Zn, in which an amount of Bi is 15 to 60 weight percent.

Abstract: A solar cell unit comprises a cell. The cell includes a cell substrate and a secondary grid line disposed on a front surface of the cell substrate. The solar cell unit also comprises a conductive wire intersecting and welded with the secondary grid line. The solar cell unit further comprises a welding portion disposed in a welding position of the secondary grid line with the conductive wire. The welding portion has a projection area larger than that of the secondary grid line with an equal length to the welding portion in a non-welding position.

Abstract: A solar cell array comprises a plurality of cells. Each cell has a front surface on which light is incident when the cell is in operation and a back surface opposite to the front surface. The solar cell array also comprises a plurality of conductive wires. Adjacent cells are connected by the plurality of conductive wires. The solar cell array further comprises secondary grid lines disposed on the front surface of the respective cell. The secondary grid lines comprise middle secondary grid lines disposed in the middle of the respective cell and intersecting with the conductive wires, and edge secondary grid lines disposed on the edges of the respective cell and non-intersecting with the conductive wires. The solar cell array also comprises short grid lines disposed on the front surface of the cell. The short grid lines connect the edge secondary grid lines with the conductive wires or with at least one middle secondary grid line.

Abstract: The present disclosure discloses a solar cell module and a manufacturing method thereof. The solar cell module includes an upper glass plate, a front adhesive layer, a solar cell array, a back adhesive layer and a back plate superposed in sequence. The back plate is a water vapor insulation back plate having a transmission rate less than or equal to 0.1 mg/m2/day; the solar cell array comprises a plurality of cells and conductive wires, adjacent cells being connected by the conductive wires; the cells are provided with secondary grid lines on front surfaces thereof, and the conductive wires are welded with the secondary grid lines by a welding layer with an alloy which contains Sn and Bi. The solar cell module according to the embodiments of the present disclosure can improve the connection effect of the conductive wires and the cells, so as to guarantee the photoelectric conversion efficiency.

Abstract: A solar cell module includes a transparent layer; a plurality of cells disposed on an upper surface of the transparent layer and spaced apart from each other; a reflective layer disposed on the upper surface of the transparent layer and surrounding at least a portion of a peripheral of at least one cell; and a cover plate disposed above, the plurality of cells and the reflective layer. At least a part, opposed to the reflective layer, of a lower surface of the cover plate has a serrate shape.

Abstract: The present invention discloses a method and a device for preparing a compound semiconductor film. The method comprises the steps of: providing a substrate above at least an evaporation source in a vacuum condition; heating a source material contained in the evaporation source so that the source material is vapor-deposited on the substrate; and taking out the substrate under protection of an inert gas. The substrate may be rotated around an axis of a plane where the evaporation source is positioned, and the substrate is tilted by a predetermined angle with respect to the plane. The compound semi-conductive film thus prepared has a uniform thickness with a larger area. The method provides a simplified process and enhanced efficiency.

Abstract: Transition metal hydroxide and oxide, method of producing the same, and cathode material containing the same are disclosed. One method includes coupling an alkaline solution to a transition metal salt solution under an inert gas atmosphere, whereby the alkaline solution includes an additive. A transition metal oxide may be prepared by heating the transition metal hydroxide under an oxygen gas atmosphere. Cathode materials for lithium-ion batteries may be prepared incorporating the transition metal hydroxide and oxide embodiments disclosed herein.

Abstract: The present invention discloses a method and a device for preparing a compound semiconductor film. The method comprises the steps of: providing a substrate above at least an evaporation source in a vacuum condition; heating a source material contained in the evaporation source so that the source material is vapor-deposited on the substrate; and taking out the substrate under protection of an inert gas. The substrate may be rotated around an axis of a plane where the evaporation source is positioned, and the substrate is tilted by a predetermined angle with respect to the plane. The compound semi-conductive film thus prepared has a uniform thickness with a larger area. The method provides a simplified process and enhanced efficiency.

Abstract: A battery cathode including a current collector and a cathode material coated on and/or filled in the current collector, said cathode material including a cathode active substance, a conductive additive and an adhesive, wherein said cathode material is coated with a layer of lithium cobaltate on the surface thereof and the content of lithium cobaltate is 0.1-15 wt % (weight percent) based on the weight of the cathode active substance. The lithium ion battery using the cathode provided by the present invention has a higher specific capacity and improved cycling performance.

Abstract: Provided is a composite material having spinel structured lithium titanate, wherein the lithium titanate has a microcrystalline grain diameter of about 36-43 nm and an average particle diameter of about 1-3 ?m. The composite material comprises a small amount of TiO2 and Li2—TiO3 impurity phases. Also provided is a method for preparing the composite material, which comprises the steps: mixing titanium dioxide particles and soluble lithium sources with water to form a mixture, removing water and then sintering the mixture in an inert gas at a constant temperature, and cooling the sintered mixture, wherein the titanium dioxide particles have D50 of not greater than 0.4 ?m and D95 of less than 1 ?m. Further provided are a negative active substance comprising the composite material and a lithium ion secondary battery containing the negative active substance.

Abstract: A solar cell and a backplane for a solar cell, where the backplane comprises a metal substrate having first and second opposing major surfaces, and an insulating layer on at least one major surface of the metal substrate. The insulating layer comprises a resin selected from the group consisting of phenolic resins, epoxy resins, amino resins, and combinations thereof.

Abstract: An electrically conductive paste for a solar cell comprises a metal powder, an inorganic adhesive, an aqueous adhesive and an auxiliary agent. The aqueous adhesive comprises a water-soluble polymer.

Abstract: Active materials for positive electrodes of rechargeable batteries and the methods of fabrication for the active materials as well as positive electrodes thereof are provided, where the active material comprises of a mixture of two components, A and B. A are compounds of lithium nickel cobalt metal oxide while B are oxides of lithium cobalt. In a preferred embodiment, a formula for the compounds of lithium nickel metal oxide, A, is LiaNi1-b-cCobMcO2 where 0.97?a?1.05, 0.01?b?0.30, 0?c?0.10, and M is one or more of the following: manganese, aluminum, titanium, chromium, magnesium, calcium, vanadium, iron, and zirconium. The weight ratio of A:B is between 20:80 and 80:20.

Abstract: Transition metal hydroxide and oxide, method of producing the same, and cathode material containing the same are disclosed. One method includes coupling an alkaline solution to a transition metal salt solution under an inert gas atmosphere, whereby the alkaline solution includes an additive. A transition metal oxide may be prepared by heating the transition metal hydroxide under an oxygen gas atmosphere. Cathode materials for lithium-ion batteries may be prepared incorporating the transition metal hydroxide and oxide embodiments disclosed herein.

Abstract: Described is a composite lithium compound having a mixed crystalline structure. Such compound was formed by heating a lithium compound and a metal compound together. The resulting mixed metal crystal exhibits superior electrical property and is a better cathode material for lithium secondary batteries.

Abstract: Lithium iron(II) phosphate containing cathode active material having lithium iron(II) phosphate particles and nano-carbons and methods of preparation thereof. In addition, the cathode active material includes iron phosphide and can be prepared under an inert atmosphere and sintered at high temperatures. The material mixture includes lithium compound, iron compound, organic carbon, phosphorous and nano-iron particles resulting in an electrode with higher unit capacity and maintenance rate.