NICKEL POSITIVE ELECTRODE AND ALKALINE SECONDARY BATTERY USING IT

PROBLEM TO BE SOLVED: To provide nickel positive electrodes whose oxygen generating overvoltage when charging is effectively raised, and an alkaline secondary battery which has high charging efficiency at high temperatures and which can exert a sufficient performance under severe conditions. SOLUTIO...

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Bibliographische Detailangaben
Hauptverfasser:	INO JUICHI, SAKAI TETSUO, KURIYAMA NOBUHIRO, NAGAKUBO SHUHEI, OKUI YOSHIYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide nickel positive electrodes whose oxygen generating overvoltage when charging is effectively raised, and an alkaline secondary battery which has high charging efficiency at high temperatures and which can exert a sufficient performance under severe conditions. SOLUTION: Fine particles of titanium or titanium compound are contained in the nickel positive electrodes. It is preferable that the fine particles are contained from 0.005 to 0.5 wt.% against the weight of the active substance of the positive electrode, and that their average particle size is from 1 to 80 nm. It is preferable that the titanium compound is titanium oxide, and that it is anatase type. As for a manufacturing method of the nickel positive electrodes, titanium or titanium compound is suspended in an alcoholic solvent, and this suspension is added to the active substance of the positive electrode. These nickel positive electrodes can be used for the alkaline secondary battery.