Toyota Jidosha Kabushiki Kaisha

Matsushita Electric Industrial Co., Ltd.

Michio Ozawa

Nobuyasu Morishita

Kazuyuki Kusama

Masato Onishi

Kojiro Ito

Masaru Kobayashi

Atsushi Adachi

Toshiyuki Yamashita

There is provided manufacturing method of battery comprising adhering process (S) to adhere fluorescent material (leakage indicator including fluorescein) which emits fluorescence in response to predetermined light (ultraviolet radiation) irradiated under condition that electrolyte exists, to at least one portion of a surface on a battery case, and leakage detecting process (Sthrough S) to detect presence/absence of electrolyte leakage with fluorescence which an adhered portion emits in response to the predetermined light (ultraviolet radiation) irradiated on at least the adhered portion which has adhesion of the fluorescent material (leakage indicator including fluorescein), out of the surface on the battery case.

Battery, manufacturing method of battery, and check method of electrolyte leakage

A plate core material is manufactured by a method including the processes of soaking a core material () that is made of nickel or nickel-plated steel and includes copper as an impurity in an aqueous solution () containing ammonium ions and hydrogen peroxide, so that the copper is dissolved in the aqueous solution (), and removing the aqueous solution () from the surface of the core material (). Further, an alkaline storage battery is manufactured by a method including this manufacturing method. According to the manufacturing method of the present invention, an alkaline storage battery having higher reliability than that of a conventional alkaline storage battery can be obtained.

Method for manufacturing core material for electrode plate and method for manufacturing alkaline storage battery

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Toyohashi, Japan

Michio Ozawa