Toyo Kohan Co., Ltd.

Satoshi Iketaka

Hitoshi Ohmura

Tatsuo Tomomori

Hirokazu Moriyama

Yasuhiro Koyakumaru

Atsuo Tanaka

Yoshiki Sakamoto

Kenji Yasunaka

A steel sheet for a battery container is covered with nickel-tin alloy layer on one side to be the inner side of the battery container which is formed by drawing the steel sheet. A battery using the steel sheet is manufactured by firstly filling positive electrode mix consisting of manganese oxide, graphite and potassium hydroxide and secondly filling negative electrode active material consisting of zinc and potassium hydroxide in the battery container.

Surface treated steel sheet for battery containers, a battery container,

Laminated sheet and manufacturing method thereof

According to the present invention, there is provided a method of forming a corrosion-resistant nickel plated steel sheet or strip comprising a base sheet made of a cold rolled steel sheet or strip. A nickel layer is electroplated on at least one side thereof. A part or all of the nickel plated layer forms Fe-Ni diffusion layer. Moreover, the exposure rate of iron on the surface of the nickel plated layer is 4-30%.

Method for manufacturing a corrosion resistant nickel plating steel

According to the present invention, there is provided a corrosion-resistant nickel plated steel sheet or strip comprising base sheet made of a cold rolled steel sheet or strip and a nickel layer plated on at least one side thereof; in which a part or all of the nickel plated layer forms Fe-Ni diffusion layer; moreover, exposure rate of iron on a surface of the nickel plated layer is 30% and below.

Corrosion resistant nickel plating steel sheet or strip and

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Kudamatsu, Japan

Satoshi Iketaka