A rectangular conductor for a solar battery and a lead wire for a solar battery, in which warping or damaging of a silicon crystal wafer is hard to occur at the time of bonding a connection lead wire even when a silicon crystal wafer is configured to have a thin sheet structure, can be provided. A conductor 1 having a volume resistivity equal to or less than 50 μΩ.Math.mm, and a 0.2% yield strength value equal to or less than 90 MPa in a tensile test is formed into a rectangular conductor 10 for a solar battery having a rectangular cross section, and a surface of the rectangular conductor 10 for a solar battery is coated with a solder plating film 13, to provide a lead wire 20 for a solar battery.

Provided is a method of manufacturing a solar cell module including: a step (A) of applying a conductive adhesive composition comprising conductive particles having metal, or the like; a step (B) of disposing wiring members so as to face with electrodes of the solar battery cells with the applied conductive adhesive composition interposed therebetween; a step (C) of heating the solar battery cells with the wiring members obtained in the step (B); and a step (D) of laminating sealing resins onto both surfaces of the solar battery cells with the wiring members obtained in the step (C), laminating protection glass onto a light-receiving surface of the solar battery cell and a protection film onto a rear surface of the solar battery cell, and performing heating, in which a melting point of the metal in the conductive particles is or lower than the heating temperature in the step (C).

A concentrator photovoltaic module 1M includes a vessel-shaped housing 11 composed of a metal and a flexible printed wiring board 12 provided so as to be in contact with an inner surface of the housing 11. The flexible printed wiring board 12 includes an insulating layer 124, an insulating substrate 121a, a pattern 121b, a plurality of power generation elements 122, and an insulting layer 126. The insulating layer 124 is in contact with a bottom surface 11a of the housing 11. The insulating substrate 121a is provided on the insulating layer 124 and has flexibility. The pattern 121b is composed of a conductor and is provided on the insulating substrate 121a. The plurality of power generation elements 122 are mounted on the pattern 121b. The insulating layer 126 is provided so as to cover an entire surface of the pattern 121b except for portions where the power generation elements 122 are mounted.

According to a solar cell panel according to the present embodiment, a connection structure of a wiring unit for connecting a plurality of solar cells comprising first and second solar electrically connected to each other is improved. More particularly, the wiring unit comprises a first extension wiring and a second extension wiring, which correspond to each of the plurality of solar cells, the first extension wiring having a first outer portion extending outwards beyond a first side of a solar cell and a second extension wiring having a second outer portion extending outwards beyond a second side of the solar cell, the second side being opposite to the first side of the solar cell. A second extension wiring of the first solar cell and a first extension wiring of the second solar cell overlap each other to have a connection portion where they are connected to each other, and the connection portion includes an overlapping portion formed by the connection portion overlapping a portion of the first solar cell.

The present disclosure provides a portable photovoltaic unit and a photovoltaic system. The system comprises a plurality of interconnectable photovoltaic module units each unit comprising a photovoltaic device. The units are arranged for releasably coupling to each other so that an electrical interconnection between the units is established and energy can be accessed from electrical contacts that are disposed on the same side of one of the units.

A photovoltaic cell includes an edge; an interconnection conductive track extending parallel to the edge to within 1.3 mm; and a plurality of electrodes, called “collection fingers”, extending parallel to each other and electrically connected to the interconnection track; the interconnection conductive track including a plurality of spaced-apart closed-contour conductive patterns, each closed-contour conductive pattern including a closed contour surrounding a portion of the first face.

Disclosed herein are approaches to fabricating solar cells, solar cell strings and solar modules using roll-to-roll foil-based metallization approaches. Methods disclosed herein can comprise the steps of providing at least one solar cell wafer on a first roll unit and conveying a metal foil to the first roll unit. The metal foil can be coupled to the solar cell wafer on the first roll unit to produce a unified pairing of the metal foil and the solar cell wafer. We disclose solar energy collection devices and manufacturing methods thereof enabling reduction of manufacturing costs due to simplification of the manufacturing process by a high throughput foil metallization process.

A manufacturing method for a flexible silicon-based cell module is provided. Specifically, cell units of a silicon-based solar cell structure are arranged and adhered to a connecting strip to form a cell string, wherein a gap is left between two adjacent cell units. The cell units in cell strings are connected in series and parallel by an interconnected bar, wherein a gap is left between two adjacent cell strings. Hard protection units adapted to the size and specification of the cell units are respectively attached to the cell units. A plurality of cell strings are connected to each other in series and parallel to form a cell assembly. A panel made of flexible material is selected to package the cell assembly to form the flexible cell module. The cell module has an excellent rollable performance and a flexible expansion, a light weight, and a small size.

Discuss is a solar cell module including a plurality of solar cells having a long axis and a short axis, each solar cell including a first electrode disposed on a front surface and a second electrode disposed on a back surface thereof, and the plurality of solar cells being disposed along a first direction, and a plurality of wiring members connected to the first electrode of a first solar cell and the second electrode of a second solar cell adjacent to the first solar cell among the plurality of solar cells, wherein a thickness of the plurality of wiring members is approximately 270 μm to 320 μm.

A method of making a semiconductor device includes forming a semiconductor material stack having a sodium at an atomic concentration greater than 1×10.sup.19/cm.sup.3, depositing a transparent conductive oxide layer over the semiconductor material stack, such that sodium atoms diffuse from the semiconductor material stack into the transparent conductive oxide layer, and contacting a physically exposed surface of the transparent conductive oxide layer with a fluid to remove sodium from the transparent conductive oxide layer.