Hitachi Cable, Inc.

Hitachi Cable Fine-tech, Ltd.

Hitachi Metals, Ltd.

Hiroyuki Akutsu

Hajime Nishi

Hiroshi Okikawa

Yuju Endo

Iku Higashidani

Hiromitsu Kuroda

Hiroshi Bando

Ken Takahashi

Katsunori Sawahata

Yukio Ito

Takayuki Tsuji

Kuniaki Kimoto

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 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

A metallic material is rolled to provide a conductorhaving a rectangular cross section. A surface of the rectangular conductoris plated with a plating layer. A thickness of the plating layerat a surface facing to the Si cell is not more than 5 &#x3bc;m to provide a connecting lead wirefor a solar battery. The connecting lead wirefor a solar battery has 0.2% proof stress of not more than 60 MPa. The connecting lead wirefor a solar battery is connected to a predetermined contact region of a Si cellof a solar battery at a high temperature.

Connecting lead wire for a solar battery, method for fabricating same, and solar battery using the connecting lead wire

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Hitachi, Japan

Hiroyuki Akutsu