Hitachi Cable, Inc.

Hitachi Cable Fine-tech, Ltd.

Hitachi Metals, Ltd.

Iku Higashidani

Hiroshi Okikawa

Hiroshi Bando

Hajime Nishi

Hiroyuki Akutsu

Hiromitsu Kuroda

Yuju Endo

Ken Takahashi

Katsunori Sawahata

Yukio Ito

Seigi Aoyama

Kuniaki Kimoto

Yoshiharu Masaki

A solar cell lead wire includes a molten solder plated layer on a strip-shaped conductive material formed rectangular in a cross section thereof so as to be bonded by soldering to an electrode of a solar cell, using a flux. A thickness of an oxide film on a surface of the molten solder plated layer, which is a sum of a thickness of an SnO layer and a thickness of an SnOlayer on the surface of the molten solder plated layer, is not more than 7 nm.

Lead wire for solar cell, manufacturing method and storage method thereof, and solar cell

A solar cell lead includes a strip plate conductive material that a surface thereof is coated with solder plating. The coated solder plating includes a concavo-convex portion on a surface thereof and a 0.2% proof stress of not more than 90 MPa by a tensile test. The coated solder plating includes a hot-dip solder plating layer formed by supplying a molten solder on the surface of the strip plate conductive material. A plating temperature is set to be not higher than a liquidus-line temperature of the used solder plus 120&#xb0; C., and an oxide film on a surface of the hot-dip solder plating layer is set to be not more than 7 nm in thickness.

Solar cell lead, method of manufacturing the same, and solar cell using the same

A solar cell lead wire includes a conductive material, and a solder plated layer on a periphery of the conductive material. The solder plated layer is formed flat by rolling. A method of manufacturing a solar cell lead wire includes feeding an elongate conductive material from a feed reel, the elongate conductive material including a rectangular conductor or a round conductor, soaking the conductive material in a molten solder in a molten solder plating bath, cooling the conductive material to have a plated wire with a solder plated layer formed on the conductive material, and winding the plated wire on a winding reel. The plated wire is formed flat by rolling after the solder plated layer of the plated wire is solidified by the cooling.

Method of manufacturing a solar cell lead wire

A solar cell lead wire includes a strip-shaped conductive material formed by rolling a wire, and upper and lower melt solder-plated layers formed to be flat on upper and lower surfaces, respectively, of the strip-shaped conductive material by supplying melt solder thereto.

Solar cell lead wire and production method therefor and solar cell using same

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Hitachi, Japan

Iku Higashidani