Abstract: There is provided manufacturing method of battery comprising adhering process (S1) 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 (S2 through S9) 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.

Abstract: A plate core material is manufactured by a method including the processes of soaking a core material (11) that is made of nickel or nickel-plated steel and includes copper as an impurity in an aqueous solution (12) containing ammonium ions and hydrogen peroxide, so that the copper is dissolved in the aqueous solution (12), and removing the aqueous solution (12) from the surface of the core material (11). 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.

Abstract: A plate core material is manufactured by a method including the processes of soaking a core material (11) that is made of nickel or nickel-plated steel and includes copper as an impurity in an aqueous solution (12) containing ammonium ions and hydrogen peroxide, so that the copper is dissolved in the aqueous solution (12), and removing the aqueous solution (12) from the surface of the core material (11). 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.

Abstract: There is provided manufacturing method of battery comprising adhering process (S1) 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 (S2 through S9) 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.

Abstract: A plate core material is manufactured by a method including the processes of soaking a core material (11) that is made of nickel or nickel-plated steel and includes copper as an impurity in an aqueous solution (12) containing ammonium ions and hydrogen peroxide, so that the copper is dissolved in the aqueous solution (12), and removing the aqueous solution (12) from the surface of the core material (11). 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.

Abstract: An apparatus for storing high definition image signals capable of processing high definition image signals and low definition image signals using the same apparatus. A storage medium is provided with an interface of low definition image signals. High definition image signals are compressed, transformed into a format according to the specifications of the interface of low definition image signals and are then stored in the storage medium. The compressed image signals taken out from the storage medium are subjected to the format reverse transform for expansion to restore the original high definition image signals. The format-transformed compressed high definition image signals and the compressed high definition image signals taken out from the storage medium are transmitted over a transmission medium via low definition image interface and are, as required, stored in the storage medium or put to other processings, and are then expanded to restore the original high definition image signals.